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revision 1.1765 by heimbach, Fri Nov 9 22:51:48 2012 UTC revision 1.2291 by gforget, Wed Jan 11 03:53:23 2017 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/exf:
8      - add saltflx :: Net upward salt flux in psu.kg/m^2/s
9    o pkg/diagnostics:
10      - add run-time variable diagMdsDir to specify a subdirectory for
11        diagnostic output when mds is being used and mdsioLocalDir is not.
12    o pkg/mnc:
13      - mnc_utils.F: edit stop message
14    o pkg/autodiff:
15      - autodiff_ini_model_io.F: PRINT_MESSAGE, clean-up comments, add _*_MASTER,
16        add HAVE_SYSTEM bracket around system call to mkdir
17    o pkg/profiles:
18      - profiles_findunit.F, profiles_init_fixed.F, profiles_interp.F,
19        profiles_readparms.F: call ALL_PROC_DIE before 'stop'
20      - profiles_ini_io.F: use PRINT_MESSAGE, clean-up comments, add _*_MASTER,
21        add HAVE_SYSTEM bracket around system call to mkdir
22    o pkg/smooth:
23      - smooth_filtervar2d.F, smooth_filtervar3d.F: call ALL_PROC_DIE before 'stop'
24      - smooth_init2d.F, smooth_init3d.F: move print statements to readparms
25      - smooth_readparms.F: add cleaner print statements from smooth_init?d.F
26    o pkg/exf:
27      - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
28        issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc
29        .EQ.UNSET_RL; generalize tests on interpMethod, nlat, and lon_inc to
30        all exf variables.
31      - summary: skip detailed field report if not used (empty file-name).
32    o tools/xmakedepend:
33      - In case line editor "ed" is missing, switch to "sed" command to clean-up
34        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
35    o pkg/exf:
36      - change definition of "hflux" input file to always include Short-Wave;
37        this is now consistent with hflux computation (if using bulk-formulae)
38        and hflux diagnostic & documentation (in EXF_FIELDS.h).
39    
40    checkpoint66b (2016/12/01)
41    o model & momentum pkgs:
42      - implement fully implicit bottom friction combined with implicit surf.
43        pressure, for now, only in hydrostic formulation:
44        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
45          and run with selectImplicitDrag=2 ;
46        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
47      - partial implicit time-stepping (bot. friction + vert. visc first, then
48        surf. press) corresponding to selectImplicitDrag=1 should be applicable
49        to NH formulation but not available until we solve for surf. pressure
50        increment (instead of full etaN).
51      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
52        with implicit vertical viscosity.
53    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
54      - this is a first version that includes many regularisations that may
55        not all be necessary, to be sorted out,
56      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
57      - change one verification experiment in seaice_itd to use and test new code
58      - seaice_growth: catch a case where the argument of log can be zero
59        or smaller (important for code stability)
60    o model/src:
61      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
62        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
63        similar A.X'=Y' system (with same matrix A) in subsequent calls;
64        switch based on errCode (In/Out) argument value; in calling routines,
65        initialise errCode before first call.
66    
67    checkpoint66a (2016/10/18)
68    o pkg/bling:
69      - BLING package now loads in atmospheric pCO2 file using exf package routines
70        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
71    o model/src & pkg/ptracers:
72      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
73        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
74        implicitDiffusion (respectively) are used (even without momImplVertAdv
75        or temp,salt,PTRACERS_ImplVertAdv).
76    o model/src & generic_advdiff:
77      - add parenthesis in main diagonal calculation of implicit vertical
78        diffusion matrix (impldiff.F & gad_implicit_r.F).
79        This affects results at machine truncation level; update output of many
80        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
81    o pkg/mom_commom & generic_advdiff:
82      - add deep atmosphere and anelastic scaling factor in implicit vertical
83        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
84    o model/src:
85      - remove few unnecessary temp array copies in solve_tridiagonal.F
86        & solve_pentadiagonal.F
87    
88    checkpoint65z (2016/09/28)
89    o pkg/seaice: fix multithreading for seaice_fgmres.F
90      - remove unecessary variables from common blocks
91      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
92        basis, that are stored in commom blocks (including integer variable i1)
93      - clean up code a little by removing commented lines that refer to
94        original code
95      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
96    o MITgcm manual:
97      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
98        preliminary documentation for generic controls (8.3; ctrl.tex),
99        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
100        ecco_costfunction.tex
101    o pkg/ecco:
102      - update and cleanup list of CCP options
103      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
104        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
105      - add checks that retired run-time options are not used, and in relation
106        to gencost_mask and gencost_errfile
107      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
108        gencost_nrecperiod
109      - fix m_eta computation for virtual salt flux case
110      - add m_horflux_vol case (selected via gencost_barfile) that computes
111        transports via cost_gencost_boxmean (gencost_flag=-3)
112      - use gencost_flag more systematically (i.e., avoid using gencost_name)
113        for code switches (aside from physical variable selection)
114    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
115      attempt appears to be a bit of a hack and my need some repair down the road
116    o pkg/exf:
117      - interpolation near South Pole: fix criteria on input field latitude.
118    o pkg/icefront & pkg/exf:
119      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
120        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
121    o pkg/exf:
122      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
123        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
124        (add suffix "_out" instead of a prefix); keep same record number as in
125        input file but always write record 1 first (to avoid a STOP in I/O S/R).
126        Change output file content by writing interpolated field before applying
127        land-sea mask (helpful for debug).
128      - 2 compon. vector interpolation with rotation: apply scaling factor on
129        each compon. (Eastward and Northward) just before rotation.
130    o pkg/bling:
131      - Cleaned package. Removed not needed code and comments.
132      - adjoint example now works
133        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
134    o pkg/ptracers:
135      - add Bruno Deremble's code to complete the linear surface correction
136        for tracer conservation;
137      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
138    
139    checkpoint65y (2016/07/29)
140    o pkg/debug (stats):
141      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
142        proc/thread mapping);
143      - fix Min & Max for case where 1 thread has only empty tiles;
144      - use RL variable to count number of wet grid points (with big domain,
145        can be too large to fit into integer*4).
146    o pkg/monitor:
147      - use RL variable to count number of wet grid points (but used only for del2)
148      - add new routine to compute Advective CFL within tracer time-stepping with
149        writing delayed until next monitor output.
150    o pkg/obcs:
151      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
152    o pkg/cal:
153      - calandar-dump: treat case myTime < timePhase in the same way as in
154        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
155    o pkg/dic & seaice:
156      - fix compilation of ocean component for coupled atm+ocn model with
157        seaice dynamics & dic.
158    
159    checkpoint65x (2016/06/11)
160    o add a license text file in main MITgcm tree.
161    o added pkg/bling:
162      - intermediate complexity biogeochemical model
163      - see bling_description.txt for details
164      - verification experiment is global_oce_biogeo_bling (for now, in
165        Contrib/verification_other/); tested daily on baudelaire with gfortran.
166      - add entry point in pkg/gchem for new pkg "bling".
167    o pkg/seaice: fix tensile stength computation
168      - replace global field tensileStrength by tensileStrFac
169      - tensileStrFac can be computed once in S/R seaice_init_varia
170      - fortunately that does not affect any verification results
171    
172    checkpoint65w (2016/05/12)
173    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
174         with ECCO_CTRL_DEPRECATED defined
175    o verification/global_ocean.cs32x15:
176      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
177        with "selectNHfreeSurf=1".
178    o model/src (non-hydrostatic free-surface):
179      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
180        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
181      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
182        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
183        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
184        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
185      - Update output (changes at machine truncation level) of verification exp:
186        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
187        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
188    o pkg/seaice: ITD code
189      - fix picking up from a single category model by initialising
190        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
191      - split a long warning message in seaice_check_pickup.F into two lines,
192        because NEC SX-ACE cannot deal with the long line.
193    o model/src:
194      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
195    o pkg/seaice:
196      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
197    o pkg/seaice:
198      - add basal stress as parameterisation for grounding ice
199        following Lemieux et al. (2015)
200      - turn on by setting new parameter SEAICEbasalDragK2 to a value
201        larger than 0. Lemieux et al. (2015) recommend 15.
202      - The adjoint complains with extra recomputations so there is also a
203        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
204        order to postpone the problem
205      - compile the new code in lab_sea
206    o verification/halfpipe_streamice:
207      - update both TAF and OpenAD adm output (machine truncation differences)
208    
209    checkpoint65v (2016/04/08)
210    o verification/advect_xz:
211      - increase overlap size from 3 to 4 and add new secondary test for PQM
212        advection scheme (with mono & wino limiter).
213      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
214    o model/src:
215      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
216        added phi0Ref) to set vertical axis origin and phiRef origin;
217        keep Ro_SeaLevel for backward compatibility (with a warning).
218       According to coordinate and fluid type:
219        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
220        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
221        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
222        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
223      - remove Ro_SeaLevel from ATM experiment parameter files;
224      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
225        complement; update output.txt (changes at machine truncation level).
226    o pkg/seaice/seaice_evp.F
227      - simplify computation of deltaZ and zetaZ to simple averaging following
228        Bouillon et al. (2013). This removes a lot of code, but also changes
229        verification experiment lab_sea.hb87 -> updated
230    
231    checkpoint65u (2016/03/14)
232    o pkg/generic_advdiff:
233      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
234        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
235        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
236        testing and not for actual use.
237    o model/src:
238      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
239        origin r = rF(1);
240      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
241        in EOS for height coordinate: enable to include NH Pressure or to use
242        more accurate pressure vertical profile; options not linked to EOS type
243        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
244      - start to implement variable gravity (along vertical): for now, only with
245        z-coords (not even z*).
246      - add Ideal Gas equation of state for height coordinate.
247      - update OpenAD output (affected at machine truncation level) of exp:
248        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
249    o pkg/exf:
250      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
251        of exf interpolation (before any rescaling, rotation or interpolation
252        to velocity point) for each field that gets loaded from file. This option
253        identically mimics the input file organization (e.g. record numbers in year
254        by year input files) besides the change in horizontal grid.
255      - add rotateStressOnAgrid run-time switch so that wind stress fields
256        can be provided on the A-grid in zonal/meridional direction and
257        rotated on the fly. This only applies to the case when the exf
258        interpolation is off and rotateStressOnAgrid is false by default.
259    o model/src:
260      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
261        it's also used with pkg/atm_phys) and add few more parameters (but still
262        inactive, src code yet to come)
263    
264    checkpoint65t (2016/02/10)
265    o pkg/atm_phys:
266      - from Ruth Geen: add optical depth dependence on CO2 concentration.
267    o model/src:
268      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
269        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
270        Update output of exp. deep_anelastic (changes at truncation level).
271    o tools:
272      - add a hack in "remove_comments_sed" (used only with TAF) for recent
273        version of OpenMPI (shipped with FC.23): comment out the new header
274        file "mpif-sizeof.h" which causes problems to TAF.
275    o pkg/seaice:
276      - change the termination criterion so that maxits (SEAICElinearIterMax)
277        has an effect
278      - unify iteration parameters for implicit solvers (JFNK and Picard)
279        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
280        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
281        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
282        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
283        SEAICEnonLinTol     replaces JFNKgamma_nonlin
284      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
285      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
286        use with SEAICEuseKrylov
287    o pkg/seaice/seaice_lsr.F
288        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
289        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
290        an effect.
291    o pkg/seaice: add two new parameters
292      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
293        parameter is not in any namelist)
294      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
295        a preconditioner for the non-linear Newton iteration of the JFNK
296        solver
297    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
298      affects some experiments at truncation level:
299      - global_ocean.cs32x15.icedyn (11 digits),
300      - global_ocean.cs32x15.seaice (11 digits),
301      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
302      - also update global_ocean.cs32x15 adjoint and tangent-linear results
303    o pkg/salt_plume & pkg/thsice:
304      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
305        connect salt_plume flux to ATM-OCN coupling pkgs interface:
306       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
307         export to coupler interface) even without compiling pkg/salt_plume ;
308       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
309         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
310    o pkg/dic:
311      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
312        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
313        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
314      - move also update with values from ATM-OCN Coupler in the same new S/R
315        (previously done in ocn_apply_import.F).
316    o tools/adjoint_options:
317      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
318        has been changed on Jan 14, 2016.
319    o pkg/ggl90:
320      - add alternative discretisation of vertical shear (off by default), to
321        compute the mean (@ grid-cell center) of vertical shear compon instead of
322        vertical shear of mean flow (@ grid-cell center).
323      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
324        results on adjacent faces of cubed-sphere grids; this fix the restart.
325    o pkg/atm_compon_interf:
326      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
327        pass last value, stored directly before export to CPL ;
328        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
329      - remove atmSLPr from pickup files (no longer needed for restart)
330    
331    checkpoint65s (2016/01/13)
332    o eesupp & genmake2:
333       - first check for Function ETIME and, if it fails, then check for subroutine
334         ETIME and consistent output; use the appropriate version in timers.F
335    o model/src:
336      - to check restart test, add option to apply EXCH to U,V earlier, just before
337        integr_continuity; turned off by default.
338    o pkg/dic:
339      - remove CPP option USE_ATMOSCO2 (not needed)
340    o tools/tst_2+2:
341      - try to ignore difference between +0 and -0 in binary file, causing test
342        to fail for no good reason.
343    o eesupp & genmake2:
344      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
345        but also check (in genmake2) that test runs and returns meaningful results.
346    o coupler pkgs:
347      Finish implementation of optionally-exchanged variable switches (started on
348       Nov 12) with addition of few more exchanged fields, including 2-way exchange
349       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
350       advection in OCN component; this requires sequential coupling.
351      coupler (pkg/atm_ocn_coupler):
352      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
353        routines (useful for debug).
354      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
355         flux, DIC fields) if corresponding switch is ON.
356      - add option to export RunOff to OCN (to use for DIC river input)
357      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
358      components (pkg/atm_ & ocn_compon_interf):
359      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
360        optionally exchanged fields; add a check & stop in cpl_readparms.F.
361        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
362        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
363      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
364        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
365      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
366      - hold in common block coupler optionally-exchanged variable switch
367        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
368      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
369        this is intended to replace the OCN cplFldtave.* output files (not updated
370        to contain new additional exchanged fields).
371    o pkg/dic:
372      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
373    o pkg/thsice:
374      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
375        and writing of thsice pickup files.
376    o pkg/atm_compon_interf:
377      - move all field individual export-call out of cpl_export_import_data.F
378        into new S/R ATM_EXPORT_FIELDS
379    o pkg/atm_compon_interf:
380      - store state variables (for now, only thSIce fields) just before beeing
381        exported (in cpl_export_import_data.F, like on ocean side) instead of from
382        atm_store_my_data.F like all exported fluxes.
383      - new version of pickup_cpl: write field names into meta file and read meta
384        file to find field postion in pickup. Also only write/read fields meeded for
385        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
386    o pkg/dic:
387      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
388    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
389        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
390        value can be from domain [0,1] to average between the two methods
391    o pkg/atm_phys:
392      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
393        hold fixed in time).
394    
395    checkpoint65r (2015/12/21)
396    o pkg/seaice:
397        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
398        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
399    o pkg/seaice:
400      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
401        when SEAICEscaleSurfStress=.TRUE.,
402      - apply areaW and areaS in S/R seaice_calc_lhs
403    o pkg/atm_phys:
404      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
405        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
406        for individual contribution (convection, LSC cond, radiation)
407      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
408        information); activated with: solar_exponent=0. and wv_exponent=-1.
409    o pkg/ggl90:
410      - within IDEMIX add upper limit for horizontal group velocity to
411        avoid instability problems in the explicit horizontal diffusion term for
412        long time steps or high resolution
413    o pkg/diagnostics:
414      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
415        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
416    o testreport:
417      - remove "-v" (verbose option) in default mpirun command.
418    o pkg/seaice/seaice_growth:
419      - catch potential division by zero in ITD code, does not change
420        verification results
421    o pkg/ecco:
422      - retire old codes to the Attic. The calls to retired functions are
423        left in a commented form in case they ever need to be re-activated.
424      - ecco_check.F: issue warning if any old CPP option is
425        defined that corresponds to retired codes -- then stop.
426    o pkg/atm_compon_interf:
427      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
428        coupler: use last time-step value instead of average over cplSendFrq_iter
429        time-step, similar to what is done for seaIceMass.
430        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
431    o eesupp & genmake2:
432      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
433        <= remove until a fix is found for some ifort version on ia32 machine.
434    o pkg/seaice/seaice_evp:
435      - refine residual computation
436    
437    checkpoint65q (2015/11/18)
438    o pkg/seaice/seaice_evp:
439      - fix residual computations so that they no longer affect the actual
440        simulation code
441      - fix seaice_readparams to be able to actually set new parameters
442        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
443    o model/src:
444      - fix wrong truncation (single prec) from "FLOAT" function in expressions
445        like: deltaT*FLOAT(myIter) when myIter is large:
446         a) replaced by DFLOAT (if not seen by TAF);
447         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
448    o pkg/aim_v23:
449      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
450        when pickupSuff is set ; do write rolling pickups + at the end of the run.
451    o pkg/atm_ocn_coupler + ocn_compon_interf:
452      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
453        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
454        add corresponding call in DO_OCEANIC_PHYS.
455    o coupler pkgs:
456      Start a new way to set-up optionally-exchanged variables (previously, only
457       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
458       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
459       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
460       compononent param default can be set accordingly).
461      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
462       but rather applies to a group a fields (going both ways like for DIC)
463       and corresponds to an option of coupling config.
464      coupler (pkg/atm_ocn_coupler):
465      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
466        and read namelist directly (without eessup S/R calls) instead of
467        in the very un-flexible old way, 1 param per line, in fixed order;
468      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
469        cleanly in CPL_CHECK_CPLCONFIG
470      - add new coupling-exchange selectors (some not yet active) including
471        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
472                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
473      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
474        component ; called directly from coupler.F, after comp. registrations;
475      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
476         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
477          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
478      components (pkg/atm_ & ocn_compon_interf):
479      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
480        CPP header file in all pkg source files.
481      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
482        ATM/OCN_CHECK_CPLCONFIG;
483      - add error-counter to track errors (e.g., in "data.cpl") and to stop
484        cleanly in ATM/OCN_CHECK_CPLCONFIG;
485      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
486        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
487        before PACKAGES_READPARMS;
488      verification/cpl_aim+ocn/:
489      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
490        "data.cpl" for coupler (in input_cpl).
491    o eesupp/inc:
492      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
493        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
494        to always cumulate tile local-sum in the same order (still uses
495        MPI_Allreduce like standard code).
496      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
497        that are now identical to standard version (in eesupp/inc).
498    o pkg/shelfice:
499      - add SHELFICETransCoeffTFile for initializing spatially varying
500        heat and salt transfer coefficients
501    o pkg/atm_compon_interf & ocn_compon_interf:
502      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
503        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
504      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
505    o pkg/atm_ocn_coupler:
506      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
507    o pkg/rbcs:
508      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
509        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
510      - add a short report (to STDOUT) about RBCS-mask settings.
511    
512    checkpoint65p (2015/10/23)
513    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
514        there is no adjoint test for EVP, we don't know what it does to the adjoint
515        solution, but at least there are no more recomputation warnings left
516    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
517        a chance of giving the same results as a fully converged VP (JFNK) solver
518    o tools/adjoint_options/adjoint_diva:
519      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
520    o pkg/streamice:
521      - spotted bug in streamice_driving_stress using dyG where should have been dxG
522    o pkg/exf:
523      - remove STOP statement that prevented to use wind or (wind-)stress
524        interpolation for constant-in-time forcing fields (wind/stress period = 0).
525    o pkg/seaice:
526      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
527        5 additionals 2D fields and 6 new store directives
528      - change logic in seaice_readparms.F: EVP code can now be turned on in
529        various ways, setting SEAICE_deltaTev is no longer required,
530        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
531        or SEAICEaEVPcoeff
532    o pkg/shelfice/shelfice_thermodynamics.F
533      - redefining uLoc/vLoc to u/v, instead of 2u/v
534    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
535      - this is an intermediate state of a truely converging EVP that has
536        the potential of outperforming implicit VP methods, I do not recommend
537        using it yet.
538      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
539        and all parameters are hardwired
540      - for convergence it still requires very smooth regularisations, that means,
541        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
542        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
543        specific averaging appears to be required, still subject to tuning
544      - still needs cleaning and I need to turn parameter into runtime parameters
545      - add code to compute and print residuals of iteration, compile with
546        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
547    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
548      that entered with r1.54 on Sep04, 2015, -> update results
549    
550    checkpoint65o (2015/09/14)
551    o pkg/mom_vecinv & mom_common:
552      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
553        called from there.
554      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
555        allows to use Vector-Invariant form in deep atmos and anelastic formulation
556    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
557      and Koenig-Beatty+Holland (2012)
558      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
559      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
560      - requires an extra input argument for S/R seaice_calc_viscosities
561      - tensileStrength's depth dependence is different from Itkin et al. (2015)
562        (to be changed and played with, for now exponential)
563    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
564      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
565        by AREA according to Connelly et al. (2004), JPO.
566      - For EVP and the LSR solver, the implicit part of the drag term is
567        the only non-zero term in the denominator when there is no ice (which
568        prevented running the model with zero ice-ocean drag). If
569        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
570        (or zero main diagonals BU/BV) which need to be caught. A practical
571        consequence is that for open water, the momentum equation reduce
572        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
573        they happen to be zero, often leading to a non-zero solution over
574        open water.
575    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
576        efficient EVP method.
577      - introduce area-weighted averages for e12 (analogously to
578        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
579        remain, but also changing the order of terms in the previous average
580        changed the results as much) -> update experiment
581      - add SEAICE_DELTA_SMOOTHREG code
582      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
583        TEM-code
584      - adjust loop bounds so that only required fields are computed
585      - add new averaging code for zetaZ/deltaZ (again similar to
586        seaice_calc_viscosities.F), inactive by default for now (will change
587        results again), but will replace old code eventually
588    o eesupp/src:
589      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
590        to always cumulate tile local-sum in the same order
591        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
592        Still uses MPI_Allreduce (like standard code) but on array of tiles
593        and should be faster than GLOBAL_SUM_SEND_RECV code.
594      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
595        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
596      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
597         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
598         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
599         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
600         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
601    
602    checkpoint65n (2015/07/29)
603    o pkg/thsice:
604      - add a warning when used with pkg/aim but without updating SST
605        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
606    o pkg/offline:
607      - change where Offline-Fields are loaded, from load_fields_driver.F to
608        directly within FORWARD_STEP, just after updating iter number and time;
609      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
610        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
611       These changes allow:
612        a) to recover exactly on-line results using deltaToffline=deltaTClock,
613        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
614        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
615        time-step, both with GM & KPP files and with recomputing these fields;
616        b) no needs to switch on staggerTimeStep anymore;
617        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
618      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
619    o pkg/offline:
620      - change (rarely used) offset-iteration parameter to an offset time (in s):
621        can easily recover previous offset-iter effect by setting offset-time
622        (offlineTimeOffset) to offset-iter x deltaToffline;
623      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
624        in KPP as part of surface buoyancy forcing) in offline run.
625      - fix ptracers KPP non-local term in the case where KPP is re-computed.
626    o OpenAD
627      - Adding preliminary ggl90 test to OpenAD verification.
628        Config. with ggl90 currently diverges after 64 time steps
629        so will need more work to become more stable
630      - Adding preliminary kpp test to OpenAD verification.
631        required small tweakes in kpp_routines.F
632      - Merge and update from Krishna Narayanan's contrib area:
633        * Add one variable for preliminary OpenAD DIVA
634        * Add replacement time-stepping for OpenAD DIVA
635        * genmake2 flag -diva (but only for OpenAD; preliminary)
636        * required modifs for OAD_support
637        successful preliminary test for tutorial_global_oce_biogeo/
638    o pkg/seaice:
639      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
640      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
641        delta with a smooth function in s/r seaice_calc_viscosity
642        (no effect on EVP)
643      - rename local suffix "sqr" into "sq" for more consistent variable names
644    o pkg/seaice:
645        add new parameter SEAICE_deltaMin that is used ***only***
646        for regularizing Delta (and nothing else, like the parameter
647        which is also used for all sorts of things SEAICE_EPS).
648        Defaults to SEAICE_EPS for backward compatibility only.
649    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
650        the wrong key by inialising it before use -> fixes a recomputation
651        problem but does not fix the gradient
652    o pkg/layers:
653      - move resetting of flux arrays to outside the iLa loop
654        (this caused layers_diapycnal to not work with more than one layer coord.)
655      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
656    o pkg/layers:
657      - remove from common block 3D layers fields (used to diagnose transport
658        in tracer coords) and declare them as local arrays in layers_calc.F
659    o pkg/seaice:
660      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
661        in lab_sea forward experiment (changes results -> updated)
662      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
663    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
664       computations; for SEAICE_VECTORIZE_LSR
665      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
666        sweep to the outside,
667      - remove store directives and add "CADJ loop sequential" directives
668        in analogy to model/src/solve_tridiagonal.F
669      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
670        boundaries to yield more readable code. This has also the charming side
671        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
672        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
673        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
674        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
675        an additional option)
676       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
677       but the adjoint gradients (which are affected by this change) still explode.
678    o coupler (atm & ocn _compon_interf):
679      - avoid using Exch2 IO mapping if not suitable.
680    
681    checkpoint65m (2015/06/15)
682    o pkg/layers:
683      - clean-up old parameters setting (from Sep 2012):
684        + remove old parameters setting from common block (declared locally);
685        + stop if any old parameter is mixed with new parameters;
686        + check for valid or consistent parameter setting (e.g., layers_name)
687      - check that layers_bounds for Pot.Density are in the right range;
688        this is supposed to catch un-updated setting after recently shifting
689        potential density field "prho" by -1000 (now in "sigma" scale).
690    o pkg/layers:
691      - Added missing call to layers_fill for keeping track of tottend in
692        pkg/diagnostics/diagnostics_fill_state.F
693    o pkg/layers:
694      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
695        of diapycnal fluxes
696    o pkg/layers:
697      - reverted changes to interpolation to previous treatment; there
698        was never actually a problem
699    o pkg/layers:
700      - fix interpolation of layers tracers in the presence of partial cells
701      - add lots of new functionality to compute water mass transformation
702        (enabled by CPP flag LAYERS_THERMODYNAMICS)
703      - add new calls from main code (diags_oceanic_surf_flux.F,
704        thermodynamics.F, impldiff.F) and gad to save the necessary fields
705        for layers_thermodynamics calculations
706    o pkg/ptracers:
707      - add capability of stepping a passive tracer forward without advection
708        by setting PTRACERS_advScheme to 0.
709    o pkg/diagnostics:
710      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
711    o pkg/layers:
712      - shift potential density field "prho" by -1000 for density layer averaging so
713        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
714        Note that density bin boundaries (layers_bounds in data.layers) have
715        to be set accordingly (i.e., shifted, in sigma scale).
716    o pkg/layers:
717      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
718      - fix calculation of layer non-weighted velocity and layer probability
719      - add diagnostics for pot.density used for layer averaging
720    o pkg/seaice:
721      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
722        positiveness, modify a few comments and improve variable names,
723      - the changed computation of deltaC affects most seaice-related
724        experiments at the truncation level.
725        seaice_itd.thermo is affected by far the most, with
726        only 7 digits of agreement remaining; update experiments.
727    
728    checkpoint65l (2015/05/04)
729    o pkg/shelfice:
730      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
731        factor drKp1 to zero where it is negative (ie. do not use
732        SHELFICEBoundaryLayer if hFacC>1)
733      - the same for factor drLoc in shelfice_forcing.F
734    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
735        with modules in ptracers, when using testreport option "-small_f"
736    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
737      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
738    o verification/testreport
739      - add new option -small_f
740        with this option testreport first makes the target small_f (*.f files)
741        before running make (all). This is useful for explicit inlining when
742        all sources need to be full available.
743    o pkg/exf/exf_interp.F:
744        remove previous changes related to reverse (decreasing) input grids latitude
745    
746    checkpoint65k (2015/04/01)
747    o pkg/ecco:
748        fix missing cosphi initialization; use eccoiter in place of optimcycle;
749        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
750        instead of active read/write
751    o pkg/ctrl:
752        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
753        instead of active read/write.
754    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
755        return if .NOT.useAUTODIFF
756    o pkg/seaice: add CPP brackets (cost function related).
757    o model/src:
758        add useAUTODIFF run time switch.
759    o pkg/exf/exf_interp.F:
760        add code to allow input grids with latitude starting in the north (i.e. when
761        j=1 corresponds to northern edge of field); modify global_with_exf to test
762        this feature.
763    o verification/testreport:
764      - replace "grep -A3" with POSIX conformal sed command, because there are
765        implementations of grep that cannot do contextual searches
766      - replace "cat -n" by "nl" (two occurrences), because not all implementations
767        of "cat" have the option "-n"
768    o model/src:
769        add new file gsw_teos10.F that contains 3 functions, more or less a copy
770        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
771        convert from conservative to potential temperature. For now they are not
772        called anywhere.
773    o pkg/ggl90: make "useIDEMIX" useful
774      - re-organize code in s/r ggl90_calc a little to move computations that
775        are different for idemix into separate loops (changes verification
776        experiment idemix at truncation level, 12 digits remain -> updated)
777      - requires 2 new 2D fields KappaM, verticalShear
778      - make hFacI and recip_hFacI local 3D variables that are passed to
779        s/r ggl90_idemix
780      - fix and improve some comments
781    
782    checkpoint65j (2015/02/25)
783    o pkg/openad
784      - synchronize seawater.F with version in model/src: replace routine
785        body of sw_temp by calling sw_ptmp and fix/add a few comments.
786    o pkg/mnc:
787      - change default value of pickup_read/write_mnc params to FALSE
788        (since few features are missing in reading MNC pickup files).
789    o model/src:
790      - change default (background) vertical diffusivity for salt to be the
791        temperature (background) vertical diffusivity.
792      - change background vertical diffusivity in vertical mixing pkgs ggl90,
793        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
794        This makes ptracers default diffusivity (that uses salt diffKr) more
795        consistent with vertical mixing schemes.
796    o verification/testreport:
797      - fix typo in "-pcls" option ;
798      - put temp files in /tmp (instead of in local dir)
799      - add option "-ncad" to use genmake2 new option "-nocat4ad"
800      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
801    o pkg/ggl90 (idemix code):
802      - apply few fixes ; add some missing "_d 0" ; update output of exp.
803        global_ocean.90x40x15.idemix
804    o OpenAD
805      - enable active file I/O and begin removal of work-around code
806        for OpenAD for handling control variables (memory vs. active files)
807      - new CPP options file OPENAD_OPTIONS.h
808      - revert to genarr2d gradient check for hs94.1x64x5
809      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
810      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
811    o tools/genmake2:
812      - add option for an alternative Makefile (from Martin) where multiple
813        source files are sent to TAF (instead of all in one file).
814    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
815      - code provided by Carsten Eden as an extension of ggl90
816      - so far the code is turned on within ggl90 by setting a CPP-flag at
817        compile time; a runtime flag implementation is not yet complete
818      - tested in new verification experiment global_ocean.90x40x15.idemix
819    o verification:
820      - reduce length of the AD test run by half for experiments
821        global_ocean.cs32x15 (std + thsice) and isomip
822      - enable active file I/O for OpenAD, adjust verifications accordingly
823      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
824    o verification/testreport:
825      - fix two non-POSIX sed statements so that there are no error messages
826        on Mac OS X
827      - replace hostname -s with hostname | sed 's/\..*$//'
828    o model/src/seawater.F:
829      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
830        (following the matlab code), which would have avoided the bug caught
831        by Matt (see below) in the first place
832    o pkg/shelfice:
833      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
834        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
835      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
836        ice-shelf case (i.e., within surface level).
837      - add config summary in shelfice_check.F
838      - remove global variable recip_SHELFICElatentHeat and replace by a local
839        variable recip_latentHeat
840      - introduce diagnostics for friction velocity uStar (in case of
841        SHELFICEuseGammaFrict)
842      - change verification experiment isomip.htd:
843        + start from pickup (as input_ad at nIter0=8640)
844        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
845        + test SHELFICEuseGammaFrict = .TRUE.
846        + test SHELFICEadvDiffHeatFlux = .TRUE.
847    o model/src:
848      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
849        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
850        update output of experiments global_with_exf.yearly and isomip (all 6).
851    o pkg/shelfice:
852      - change setting of kTopC to also be zero where there is no ice-shelf.
853      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
854        ice-shelf is.
855      - first attempt to get RealFreshWaterFlux effects: for now, only without
856        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
857    o pkg/seaice: add the option to prescribe a fixed thickness PDF
858      for thermodynamic calculations
859      - because of divisions of the type 7/7 not exactly equal to 1, this change
860        affects results of some verification experiments by up to 4 digits:
861        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
862        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
863        adjoint: lab_sea, lab_sea.noseaicedyn
864        -> updated
865    
866    checkpoint65i (2015/01/23)
867    o model/src:
868      - change units of frictionHeating field from W to W/m^2
869      - fix bug in frictional heating from stratospheric drag in
870        S/R ATM_PHYS_TENDENCY_APPLY_V
871      - with synchronous time-stepping: move resetting to zero of frictionHeating
872        field from load_fields_driver.F to thermodynamics.F ;
873      - add diagnostics for frictional heating.
874    o model/src & gmredi K3D:
875      - add frictionHeating field to pickup-files (for synchronous time-stepping)
876      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
877      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
878        and name in pickup file).
879      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
880    o model/src:
881      - move (from ini_forcing.F) initialisation of all arrays in header file
882        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
883        (since Nov 2012) with option selectAddFluid=1.
884    o pkg/shelfice:
885      - change units (+ document) of newly added field "shelfIceMassDynTendency"
886      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
887    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
888    o pkg/seaice: two new runtime parameters:
889      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
890        long overdue
891      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
892        parameterization of tensil stress for fast ice (does not do anything yet)
893    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
894        for LSR: move checking overlaps out of JFNK-if-block
895    o pkg/atm_phys:
896      - move copy of grid and dynamical fields out of atm_phys_driver.F into
897        new S/R ATM_PHYS_DYN2PHYS.
898      - fix level height for Linear Free-Surf case (to be consistent with
899        fixed-in-time pressure levels).
900    o pkg/mom_common (bottomdrag):
901      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
902        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
903        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
904    o pkg/shelfice (u/v_drag):
905      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
906      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
907        (now similar to shelfice_u_drag.F)
908      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
909        from mom_vecinv.F (similar to mom_fluxform calls).
910    o pkg/mom_common (bottomdrag):
911      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
912      - add options for alternative discretisation of velocity norm in quadratic
913        bottom drag: averaging of grid-cell-center KE to U.point and V.point
914        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
915        improves when averaging only the other component (e.g. vVel for U bottom
916        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
917      - add options (bottomVisc_pCell) to account for partial-cell in bottom
918        friction (no-slip BC) thus getting the true distance from the bottom;
919        off by default since this also reduces model stability (explicit bottom
920        friction). Changes produce different machine truncation with linear-drag
921        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
922        front_relax (bvp & mxl, 10 & 11 digits).
923    o model/src & mom pkgs:
924      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
925        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
926      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
927        just copy level Nr value to level Nr+1.
928    o doc:
929      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
930    o pkg/shelfice:
931      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
932        SHELFICE.h: move array shelficemass to init_varia, initialise
933        from array shelficemassinit, which is set in init_fixed and
934        has option to be set from file; introduce array
935        shelficeMassDynTend array, set thru file in init_fixed
936      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
937        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
938        pkg/streamice
939      - shelfice_thermodynamics.F: call shelfice_step_icemass if
940        SHELFICEMassStepping = .true.
941      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
942    
943    checkpoint65h (2014/12/17)
944    o verification/global_ocean.90x40x15, global_ocean_ebm:
945      - update to generic controls.
946    o pkg/ctrl:
947      - ctrl_map_ini_genarr.F: test for igen>0
948      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
949      - move gentim2d part of ctrl_map_ini_genarr.F to
950        new separate routine : ctrl_map_ini_gentim2d.F
951      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
952        add time variable weights and cyclic controls (time mean,
953        seasonal cycle, etc) capabilities to gentim2d
954    o pkg/ecco:
955      - move reading of error, conversion to weights from
956        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
957    o global_oce_llc90, cs32:
958      - activte sbo.
959      - CTRL_SIZE.h : add maxCtrlProc.
960      - activate the new genctrl capabilities.
961      - update following reorganization of global_oce_input_fields.tar.gz  
962    o pkg/ctrl/ctrl_ad_diff.list:
963      - add missing ctrl_init_rec.f
964    o tools/OAD_support/keepOriginal:
965      - add ctrl_init_rec.F
966    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
967      - avoid recomputations of xx_gentim2d_dummy.
968    o momentum diagnostics:
969      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
970        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
971    o pkg/seaice/seaice_lsr.F:
972      - fix computation of BU/BV, make sure they are non-zero, only necessary
973        for cubed sphere exchanges and SEAICE_OLx/y>0.
974        This makes calling s/r fill_cs_corner_rl obsolete (removed).
975    o verification/global_ocean.cs32x15/input.seaice
976      - add test for strong implicit coupling and restricted addtive Schwarz
977        methods for LSR
978      - update results/output.seaice.txt
979    o verification/tutorial_global_oce_biogeo:
980      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
981        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
982        update output_adm,_oadm,_tlm.txt
983    o pkg/dic:
984      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
985      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
986        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
987    o verification/tutorial_global_oce_biogeo:
988      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
989        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
990        update output_adm,_oadm,_tlm.txt
991    o eesupp/src:
992      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
993        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
994    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
995      LSR (following Hutchings et al. 2004)
996      - introduce zetaZ as a global variable (requires adjustments in
997        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
998        in seaice_calc_viscosities.F
999      - new flag SEAICEuseStrImpCpl (default off)
1000      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
1001        momentum equations
1002      - JFNK-solver (preconditioner) adjusted to allow using this method
1003        (where it does not have any positive effect)
1004    o pkg/seaice
1005      - add overlap for restrictive additive Schwartz method also to LSR, but
1006        turn it off by default (because it only seems to work for non-cubed
1007        sphere/llc topologies)
1008    o pkg/autodiff
1009      - add extra exchanges in addummy_in_steppging also for mnc output
1010    o pkg/seaice:
1011      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
1012        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
1013    o pkg/obcs:
1014      - add option to specify domain-connected piece Id along OB though files
1015        (for now, only used to diagnose PhiVel; default =1 -> global correction)
1016      - modify obcs_diag_balance.F to process each connected-part separately;
1017        exclude OB where Id = 0 but keep the full divergence there (-> constant
1018        Psi along this portion of OB and all inflow derived from grad(Phi))
1019      - add example of OB-conect files in verification/so_box_biogeo/input.
1020    o pkg/diagnostics:
1021      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
1022      a) use non zero matrix element across OB and solve for Phi 1 grid point
1023         outside OB (i.e, where tracer OBCS are applied).
1024      b) global imbalance of inFlow/outFlow across OB: instead of modifying
1025         velocity across OB, spread it uniformly along the OB in the RHS.
1026    
1027    checkpoint65g (2014/11/19)
1028    o pkg/diagnostcis:
1029      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
1030    o pkg/my82,pp81,kl10:
1031      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
1032        field diffKr as background diffusivity to set minimum diffusivity value.
1033    o pkg/seaice:
1034      - add new parameter SEAICEuseEVPrev (for revisited EVP by
1035        Bouillon et al 2013)
1036      - add SEAICE_evpAlpha/Beta to namelist
1037      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
1038        involve trivial re-ordering of divisions/multiplications that should not
1039        have any effects, but ... they do change the results of lab_sea.hb87 so
1040        that only 2 digits of agreement remain, in line with the general
1041        instability/fragility of the evp-code. For now, I do not care and just
1042        update the verification experiment
1043    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
1044      - remove xx_genarr2d_numsmooth etc
1045      - use xx_genarr2d_preproc etc instead
1046      - carry out smooth_correl2D at initialization stage rather than during
1047        time stepping.
1048      - get smoothOpNb from xx_gentim2d_preproc
1049    o global_oce_cs32 :
1050      - add test of generic ecco capabilities.
1051    o pkg/exf/exf_getsurfacefluxes.F :
1052      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
1053    o pkg/ctrl,ecco :
1054      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
1055        is defined.
1056    o pkg/seaice: add diagnostics for Delta (deformation parameter)
1057    o model/src:
1058      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
1059        diffusivity (background) is specified but ignored.
1060    o verification:
1061      - in testreport, convert hostname to lower case for default output dir name
1062    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
1063    o pkg/dic: add modifications from Hajoon:
1064      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
1065      - light attenuation: add self-shading effect by climatological Chlorophyll
1066        (read from file).
1067    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
1068        compiles when SEAICE_ALLOW_DYNAMICS is undefined
1069    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
1070        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
1071        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
1072        approach where CPP_OPTIONS.h includes an omnipotent
1073        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
1074    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
1075        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
1076    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
1077        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
1078        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
1079    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
1080      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
1081      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
1082      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
1083      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
1084    o pkg/ctrl,ecco,exf :
1085      - remove variables associated with NON-generic costs,
1086        unless ECCO_CTRL_DEPRECATED is defined.
1087      - remove NON-generic NON-obcs controls,
1088        unless ECCO_CTRL_DEPRECATED is defined.
1089    o pkg/ctrl : added ctrl_local_params.h
1090    o pkg/ecco : added ecco_local_params.h
1091    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
1092        experiments, which will progressively be removed once the
1093        experiments are revised to use only generic controls/costs.
1094    
1095    checkpoint65f (2014/10/13)
1096    o pkg/ctrl, ecco, seaice : minor changes in headers
1097    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
1098        cost function and control capabilities added since checkpoint65c.
1099    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
1100    o pkg/ecco: increase modularity and improve logic
1101      - ecco_toolbox.F (new) : basic operations that are often used,
1102        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
1103        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
1104      - cost_gencal.F (new) : determine filnames and records.
1105      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
1106      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
1107        and exploit the above functions leading to more compact code.
1108      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
1109      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
1110        using_ers, using_gfo, using_mdt is now only defined within gencost)
1111    o pkg/ecco: extend generic cost capabilities
1112      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
1113        capabilities via gencost_preproc (+ _c,_i,_r related params),
1114        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
1115        gencost_outputlevel arguments to cost_generic
1116      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
1117        and active_read, making room for gencost_preproc to take effect.
1118        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
1119      - pkg/ecco/cost_generic.F :
1120        compute and store misfit maks*(model-data) in localdif that is
1121        then used in cost and for output, output misfit if outlev.GT.0
1122      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
1123        rather gencost_barfile for deciding whether to write barfile
1124      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
1125      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
1126        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
1127      - pkg/ecco/ecco_summary.F : report gencost variables
1128      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
1129    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
1130    o pkg/ecco: internal re-organization
1131      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
1132        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
1133        mv relevant variables definition from ecco_cost.h to ecco.h,
1134        make sure gencost routines only include ecco.h)
1135      - throughout : add missing CCP switches, rm unused variables,
1136        and rm un-necessary CPP switches
1137      - throughout gencost routines : replace modelstartdate with
1138        gencost_startdate when needed
1139      - cost_bp_read.F : use arguments, instead of common blocs
1140        so that it can be used also by (new) cost_gencost_bpv4.F
1141      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1142      - ecco_phys.F : compute etanFull
1143      - ecco_readparms.F : rename using_topex as using_tpj, add
1144        bpv4-grace to gencost list, initialize added parameters
1145      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
1146    
1147    checkpoint65e (2014/09/28)
1148    o pkg/obcs:
1149      - replaced the just-added CPP options with run-time variables
1150        (see pkg/obcs/OBCS_PARAMS.h for details)
1151    o pkg/obcs:
1152      - add additional CPP options for sponge boundary layers
1153        (see pkg/obcs/OBCS_OPTIONS.h for details)
1154    o pkg/atm_phys:
1155      - implement simple (obliquity only, assuming circular planet orbit)
1156        seasonal cycle for incoming insolation ; used when run-time parameter
1157        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1158    o pkg/exf, pkg/ecco, pkg/ctrl:
1159      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1160      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1161      - implement gentim2d for xx_tauu, xx_tauv
1162    o pkg/ctrl, pkg/ecco :
1163      - fix and complement the generic controls implementation
1164    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1165        pkg/shelfice/shelfice_thermodynamics.F,
1166        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1167        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1168      - add weight in CTRL_GET_GEN calls
1169    o pkg/ctrl :
1170      - ctrl_get_gen.F : add weight as input parameter, and apply
1171        it directly rather than using smooth_correl2Dw (to be retired).
1172      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1173    o pkg/ctrl :
1174      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1175        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1176      - re-activate ctrl_summary (call in ctrl_init.F)
1177    o pkg/ctrl/ctrl_cost_gen.F :
1178      - fix CCP brackets, remove un-necessary myiter, mytime
1179    o pkg/ecco, pkg/ctrl :
1180      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1181      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1182      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1183      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1184    
1185    checkpoint65d (2014/09/15)
1186    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1187      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1188        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1189    o pkg/ctrl/ctrl_map_ini_genarr.F :
1190      - remove compilation failure
1191      - replace hard coded example
1192      - use ctrl_map_ini_gen2D, 3D
1193    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1194      - on/off switch based upon xx_genarr2d_weight,3d
1195    o src/packages_init_variables.F :
1196      - regroup pkg/estimation calls
1197      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1198        (moved to ctrl_init_variables)
1199    o cost/cost_init_varia.F :
1200      - remove ecco_cost_init_varia
1201        (moved to ecco_init_varia)
1202    o ctrl/ctrl_init_variables.F :
1203      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1204      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1205    o ctrl/ctrl_map_ini.F :
1206      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1207        (moved to ctrl_init_variables)
1208    o ctrl/ctrl_map_ini_ecco.F :
1209      - remove ECCO_PHYS (mv to ecco_init_varia)
1210      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1211    o ecco/ecco_ad_diff.list :
1212      - add ecco_init_varia.f
1213    o ecco/ecco_init_varia.F
1214      - new routine
1215    o pkg/streamice:
1216      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1217        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1218      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1219    o pkg/generic_advdiff:
1220      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1221    o pkg/exf:
1222      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1223         xxg_precip capability
1224      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1225    o pkg/ctrl:
1226      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1227    o model/src/load_fields_driver.F :
1228      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1229        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1230    o OpenAD verification experiments:
1231      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1232        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1233        for now, only in pkgs used in OpenAD verification experiments.
1234      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1235        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1236        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1237        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1238    o OpenAD verification tests:
1239      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1240      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1241        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1242      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1243        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1244    o model/src & generic_advdiff:
1245      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1246        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1247        dynamics requires valid tracer forcing only over tile interior but, for
1248        some diagnostics, may need to extend it over 1 point in tile halo region.
1249      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1250        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1251        setting in temp/salt/ptracer_integrate.F
1252    o pkg/dic:
1253      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1254        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1255        in gchem_forcing_sep.F
1256    o pkg/autodiff & obcs:
1257      - add storage of current OB values for U & V (was already done for T & S).
1258    
1259    checkpoint65c (2014/08/30)
1260    o pkg/dic:
1261      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1262        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1263        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1264    o verification:
1265      - new experiment testing OBCS and DIC pkgs, using params & output from
1266        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1267        passage: take OBCS from the last year of a 2 yrs simulation and initial
1268        conditions from t=1.yr while keeping the same forcing.
1269    o model/src:
1270      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1271        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1272    o pkg/diagnostics (Stats-Diags):
1273      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1274        a) refine region where stats are computed, excluding where arrhFac=0 ;
1275        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1276        c) extend regional stats over the region edges (for U or V pt location).
1277    o pkg/gchem:
1278      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1279        pkg/dic is currently changing/updating ptracers values beyond the OB).
1280    o verification (hs94):
1281      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1282        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1283        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1284        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1285    o pkg/ptracers:
1286      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1287        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1288      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1289        with AB-2 code (so that it get tested).
1290    o model/src:
1291      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1292        with AB-2 code (previously only available with AB-3 code).
1293        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1294        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1295        there, by calling CYCLE_AB_TRACER).
1296    o pkg/generic_advdiff:
1297      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1298        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1299        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1300        S/R temp/salt/ptracers_integrate.F
1301    o model/src & pkg/ptracers:
1302      - remove common block variables gT,gS (in DYNVARS.h), except when
1303         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1304      - remove common block variable gPtr.
1305    o model/src & pkgs:
1306      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1307         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1308         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1309         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1310      + change accordingly all calling S/R.
1311      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1312        in S/R temp/salt/ptracers_integrate.F
1313    o pkg/seaice:
1314      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1315        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1316      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1317        in seaice_lsr
1318      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1319        in s/r seaice_lsr_calc_coeffs
1320    o pkg/mdsio:
1321      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1322        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1323        too long (e.g., > MAX_LEN_FNAM/2 )
1324    
1325    checkpoint65b (2014/08/12)
1326    o pkg/matrix:
1327      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1328    o model/src:
1329      - fix initialisation of geothermalFile; compile geothermal-flux code in
1330        natl_box verification experiment.
1331    o model/src & pkg/down_slope:
1332      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1333      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1334        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1335        results at machine truncation level: update output of experiments
1336        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1337    o pkg/diagnostics (Stats-Diags):
1338      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1339        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1340        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1341        times (but Min,Max and StD are still wrong).
1342    o model/src:
1343      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1344        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1345    o model/src:
1346      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1347        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1348        arrays are already updated while adjustments (filters, conv.adjustment) are
1349        still applied later, in S/R TRACERS_CORRECTION_STEP.
1350    o model/src:
1351      - store in common bloc array "rhoInSitu" the virtual potential temperature
1352        anomaly that is used to compute geopotential: this make the atmos code
1353        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1354    o pkg/seaice/seaice_lsr.F
1355      - rename integer variable ilcall to ipass (that's what it is called
1356        in the residual diagnostics
1357      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1358        default) for improved non-linear convergence of the first few steps
1359      - adjust a few comments and add new ones to explain some of the store
1360        directives
1361    o pkg/generic_advdiff (& ptracers):
1362      - re-work the code to check for valid advection scheme and for minimum
1363        size of overlap (now stored in local common bloc in gad_advscheme.F)
1364    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1365      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1366      - add an auxilliary variable "bet" and fix store directives and keys in
1367        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1368        less exact gradients in my tests); but there are still
1369        recomputation warning (although gradients are sort of OK), when
1370        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1371        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1372      - update verification experiments lab_sea.
1373      - change some comments in S/R seaice_calc_viscosities
1374    o model/src:
1375      - if staggerTimeStep=T, always apply exchange to velocity field in
1376        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1377        (independent of using multi-dim advection or not); no effect on FWD run
1378        but affects AD results (at machine truncation level): update output of
1379        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1380        and isomip (oad: 12.d).
1381    o pkg/generic_advdiff:
1382      - stop if doAB_onGtGs is set to FALSE but ignored
1383      - refine warning related to stability of tracer time-stepping
1384        regarding internal wave dynamics.
1385      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1386        on staggerTimeStep & implicitIntGravWave (will now get a warning
1387        if potentially unstable).
1388    o pkg/kl10:
1389      - add new pkg "kl10" for mixing due to internal wave breaking, from
1390        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1391        (contribution from Jody Klymak), tested in verification experiment
1392        verification/internal_wave/input.kl10/
1393    o isomip experiment:
1394      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1395        (input.htd) and update the output.
1396    o cd_code experiments:
1397      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1398        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1399        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1400        update the corresponding output.
1401    o pkg/seaice:
1402      - reduce the number of include files and store directives in
1403        S/R seaice_lsr_tridiagu/v
1404      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1405        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1406        get rid off one store directive (a TAF bug?)
1407      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1408        S/R seaice_lsr_tridiagv to change the loop range for consistency
1409      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1410      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1411        S/R seaice_lsr_tridiagu/v (requires update of
1412        offline_exf_seaice/input.dyn_jfnk)
1413    
1414    checkpoint65a (2014/07/27)
1415    o model/src:
1416      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1417        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1418        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1419        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1420    o model/src:
1421      - collect momentum forcing tendency into local 2-D array (passed as argument
1422        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1423        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1424        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1425      - collect T & S forcing tendency into local 2-D array (passed as argument to
1426        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1427        affects results at machine truncation level (e.g., ocean: if using
1428        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1429        correction due to vertical advection).
1430      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1431        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1432        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1433        obcs_ctrl (ad & fwd grd @ 12 & 7).
1434    o pkg/ptracers & diagnostics:
1435      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1436        title (to avoid some unexpected truncation); sort out ptracers diags units.
1437      - collect ptracer forcing tendency into local 2-D array (passed as argument
1438        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1439    
1440    checkpoint65 (2014/07/18)
1441    o pkg/fizhi:
1442      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1443        affects results at machine truncation level. Update output of experiments
1444        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1445    o pkg/seaice: more clean up
1446      - rename TAF common block tapes to be more consistent and remove
1447        unnecessary duplicates
1448      - add store directives to remove more recomputations, but use smaller
1449        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1450        The idea behind this flag is to reduce the memory footprint when the
1451        adjoint of the LSR is not required. As of now, defining the flag
1452        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1453        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1454        For experiment offline_exf_seaice, this means on a linux box with gfortran
1455        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1456        this experiment):
1457        > size mitgcmuv_ad
1458        text    data        bss     dec        hex
1459        5100659 1216  220458952  225560827  d71c8fb
1460        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1461        but only a moderate increase of 36% for global_ocean.cs32x15:
1462        text    data        bss     dec        hex
1463        6695027 1648 1014578664 1021275339 3cdf6ccb
1464        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1465      - note: there are still recomputations in global_ocean.cs32x15 and
1466        offline_exf_seaice and the gradient agreement changes (gets a
1467        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1468      - in general, the AD gradients still are wrong
1469    o OpenAD
1470      - clean up code_oad/ directories somewhat by moving files
1471        dontCompile, dontTransform, keepOriginal to OAD_support/
1472    o model/src:
1473      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1474        (not currently tested): add dissipation terms before NLFS rescaling of
1475        tendencies (previously done after).
1476    o pkg/diagnostics:
1477      - write stats-diags in ascii file with more digits (same as in monitor).
1478    o pkg/down_slope:
1479      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1480        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1481    o model/src:
1482      - new file "apply_forcing.F" containing all the code previously in
1483        external_forcing.F, but with new argument list: pass, as new argument,
1484        the current level tendency array to update (instead of a direct update
1485        of the common bloc array). Change the corresponding calls.
1486      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1487        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1488    o pkg/seaice/seaice_lsr, a little bit of clean up
1489      - rearrange some code blocks, so that now all calculations for
1490        setting up the right-hand-sides done within one single block
1491        (I find that easier to read and understand)
1492      - rearrange freedrift-code to reduce the number of ifdefs
1493      - adjust some indentations and comments
1494    
1495    checkpoint64z (2014/07/10)
1496    o model/src and several pkgs:
1497      - change argument list of all S/R called from external_forcing.F and
1498        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1499        to pass, as argument, the current level tendency array to update
1500        (instead of a direct update of the common bloc array).
1501      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1502      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1503    o pkg/seaice/seaice_lsr.F
1504      - always initialize local arrays in seaice_lsr_tridiagu/v
1505      - add more local tapes to seaice_lsr_tridiagu/v
1506      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1507        keep it in bi/bj loop; this seems to be essential
1508      - gradients are still wrong but only by 4-7 orders of magnitude
1509        instead of 15 orders of magnitude, lab_sea improves a little
1510    o pkg/seaice
1511      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1512        generates unnecessary code in seaice_lsr_ad
1513      - add more store directives in seaice_lsr to avoid unnecessary code
1514        in seaice_lsr_ad
1515      - exclude some residual computations in seaice_lsr when
1516        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1517        in seaice_lsr_ad
1518      - add more storing, a new tape (model/src/the_main_loop.F) and
1519        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1520        and klockey should be checked by a specialist)
1521      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1522        and update lab_sea after previous changes in pkg/seaice below
1523    o pkg/autodiff:
1524      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1525        viscFacInAd : run time parameters allowing for adjoint switches
1526        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1527    o pkg/ecco:
1528      - introduce cost_gencost_boxmean.F that computes a box mean
1529        temperature (for use in adjoint sensitivity studies).
1530    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1531    o pkg/mom_common/mom_calc_visc.F:
1532      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1533    o pkg/seaice/seaice_summary.F:
1534      - statement for SEAICEadjMODE now in autodiff_readparms.F
1535    o pkg/seaice:
1536      - remove some store directives and add new ones in an effort to get
1537        finally rid off the recomputation warnings. This is successful
1538        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1539        defined (i.e. no extensive recomputation warnings left), but there
1540        are still too many recomputations on the solver iteration level
1541      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1542      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1543        SEAICE_SIZE.h
1544      - add a store directive in S/R seaice_calc_viscosities
1545    o pkg/seaice (ITD code):
1546      - fix definition of Hlimit for multi-threaded case
1547      - use double precision arithmetic to compute Hlimit: this affects results;
1548        update output of experiment seaice_itd.
1549    o replace content of verification/seaice_itd
1550      - instead of a 1D column use the configuration of offline_exf_seaice
1551        to test the ice thickness distribution code with ridging
1552      - this is a first shot at this experiment
1553      - change of some defaults of ridging parameters SEAICEhStar (from
1554        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1555        and lot of new comments.
1556    
1557    checkpoint64y (2014/06/20)
1558    o pkg/seaice/seaice_reg_ridge.F:
1559      - modify the regularization of very small volumes of ice; only check
1560        total volume HEFF, and do not apply correction to individual ice
1561        classes because that leads to funny patterns in the heat and fw-fluxes
1562        into the ocean. Adjust seaice_itd/results/output.txt
1563      - replace nITD by SEAICE_multDim in loop-ranges
1564    o pkg/exf:
1565      - add code to process the case field period = -12. with UV interpolation.
1566      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1567        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1568    o verification/global_with_exf:
1569      - switch all fields period to -12. (was previously untested) in input/data.exf
1570        (but keep secondary test ".yearly" unchanged); update the reference output.
1571    o pkg/cal:
1572      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1573    o pkg/exf:
1574      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1575        to replace logical switch "exf_verbose"
1576      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1577    o pkg/sbo:
1578      - update from Katherine Quinn: evaluate mass directly from density and SSH
1579        (budget using Finite Volume method) instead of from bottom pressure.
1580      - allow testreport to collect few selected SBO output ; tested in exp.
1581        global_ocean.90x40x15 (after updating the results, to include SBO output).
1582      - fix some multi-threading issues (in output part).
1583    o model/src & most packages:
1584      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1585      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1586        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1587        "data.{pkg}" exist ; and leave the S/R (return) just after.
1588      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1589        + call LAND_READPARMS from packages_readparms.F
1590    o pkg/seaice:
1591      - remove code that resets useThSice in S/R seaice_readparms and
1592        replace it by a warning in S/R seaice_check
1593      - remove parameter MULTDIM, replace with nITD and runtime
1594        parameter SEAICE_multDim (still hard-wired to nITD if
1595        SEAICE_ITD is defined)
1596    
1597    checkpoint64x (2014/05/24)
1598    o verification/lab_sea:
1599      - update adjoint and TLM output following changes to pkg/salt_plume
1600      - un-do the update after putting back local recip_Cp in few places.
1601    o pkg/salt_plume: modifications by An Nguyen:
1602      - add capability to do brine rejection (salt-plume) as function of
1603        volume+tracers (instead of only salinity tracer).
1604      - conserve volume by exchanging volume from each kLev to above to
1605        accommodate in-coming brine volume
1606      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1607      - switch KPP surf buoyancy due to brine forcing to 3-d
1608        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1609      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1610      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1611        in East/West Arctic.
1612    o pkg/sbo:
1613      - incorporate modifications from Katherine Quinn to enable the use of sbo
1614        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1615        output for future testreport verification (unfinished).
1616    o pkg/atm_phys:
1617      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1618        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1619        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1620    o pkg/seaice
1621      seaice_calc_ice_strength.F: modify expression to avoid divisions
1622        (affects truncation)
1623      seaice_do_ridging.F: clean up the insectarium
1624      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1625      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1626      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1627      - add some debugging information and error messages (warnings)
1628    o model/src: modifications relatd to atmosphere p*:
1629      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1630      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1631        of vertical profile tRef in geopotential background and anomaly.
1632      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1633        and pkg/atm_phys.
1634      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1635        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1636    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1637    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1638        not used right now, but can be used in BGC packages to fix conservation.
1639    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1640        other packages too.
1641    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1642        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1643    o model/src:
1644      - since we have several heat capacity (even in model/src), define "recip_Cp"
1645        as local variable (no longer in common block) to avoid any confusion.
1646      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1647    o pkg/exf:
1648      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1649        air density as function of air Temp, Humidity and atm pressure.
1650    
1651    checkpoint64w (2014/05/02)
1652    o verification:
1653      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1654        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1655        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1656        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1657        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1658    o model/src: for atmosphere in p* coords:
1659      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1660      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1661        but not yet activated.
1662    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1663      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1664      - this changes the results (but not for any verification experiment, because
1665        none tests this), but avoids having an extra field in the restart files
1666    o pkg/seaice: remove global variable TICE (not needed)
1667      - replace by TICES or local variable where necessary (cost_seaice_test,
1668        seaice_diagnostics_state)
1669      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1670      - use specific read/write routines for reading and writing individual leves
1671        of a multilevel field
1672    o pkg/ctrl & model/inc:
1673      - move additional anomaly fields of control vars (related to options:
1674         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1675        from DYNVARS.h into new header file: CTRL_FIELDS.h
1676    o pkg/seaice: some small modifications to the ridging code
1677      - make fw2ObyRidge a global variable and add the freshwater flux to
1678        seaice_growth
1679      - pass actual thickness from seaice_prepare_ridging, so that it is
1680        computed only in one place and compute it in the same way as in
1681        seaice_growth
1682      - initialise more fields in seaice_do_ridging that where cause floating
1683        point exceptions over land
1684    o pkg/seaice: preparations for ridging code and first real ridging code
1685      - move most of "PART 1" of S/R seaice_growth into a new and separate
1686        S/R seaice_reg_ridge that will both regularize the state variable after
1687        advection call the actual ridging routine;
1688      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1689        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1690      - remove ridging code from seaice_advdiff
1691      - clean up remaining part 1 of seaice_growth in an attempt to make it
1692        more readable (this is probably subjective)
1693      - call seaice_itd_redist once in the initialisation phase to have the initial
1694        conditions in the correct category
1695      - finally: add new ridging routine for ITD code
1696    
1697    checkpoint64v (2014/04/11)
1698    o pkg/ecco:
1699      - add runtime parameters mdt[start,end]date[1,2]
1700      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1701    o pkg/seaice:
1702      - make deltaC a global variable, so that it can be used in ridging code
1703      - first step towards ridging: introduce new routines that compute
1704        ice strength based on ridging parameters
1705      - add diagnostic for HSNOWITD
1706      - add opnWtrFrac as a global variable (required for ridging scheme)
1707    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1708      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1709        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1710    o verification/hs94.1x64x5:
1711      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1712      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1713    o autodiff:
1714      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1715        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1716        For now, only in pkgs used in verification/hs94.1x64x5.
1717      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1718        which are specific to TAF/TAMC).
1719      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1720        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1721        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1722      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1723        building mitgcmuv_ad (make adAll).
1724    o pkg/ecco:
1725      - cost_gencost_seaicev4.F:
1726         reformulate proxy cost as function of sst and local param SEAICE_freeze
1727         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1728      - add stop statement if old names siv4-[sst,vol] are used
1729      - add snapshots + cost reports for atmospheric longwave
1730      - remove factor 0.1 in front of wtau[u,v]
1731      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1732         ALLOW_TMI_SST_COST_CONTRIBUTION
1733    o pkg/atm_phys:
1734      - add some diagnostics for Short-wave and for convection S/R.
1735    o pkg/seaice/seaice_growth:
1736      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1737        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1738      - rearrange loop order for better vector code in the same code block
1739      - rewrite the floeDiameter formula to have fewer divisions
1740      -  (miraculously) none of this changes the results of seaice_itd
1741    o pkg/smooth:
1742      - move param smooth2Ddiffnbt to pkg/ecco
1743    o pkg/salt_plume:
1744      - salt_plume_frac.F:
1745         clean up local param names
1746         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1747    o pkg/rw:
1748      - add RS version of S/R READ_MFLDS_LEV.
1749    o pkg/streamice:
1750      - fix the restart test by writing/reading pickup_streamice files.
1751    o pkg/seaice:
1752      - refine checks for jfnk-related parameters
1753      - comment out if statement with SEAICEuseIMEX parameter as long as there
1754        is no IMEX code to avoid confusion and surprises
1755    
1756    checkpoint64u (2014/03/07)
1757    o verification/MLAdjust:
1758      - rename secondary test suffix:
1759         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1760         0.leithD -> AhFlxF  + switch to flux-form
1761         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1762         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1763    o pkg/mom_vecinv:
1764      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1765        to be before mom_calc_visc.F)
1766      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
1767      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
1768        this is simpler for the adjoint and for diagnostics.
1769    o model/src + pkg/momentum:
1770      - add input files for  2-D additional Western and Southern cell-edge wall
1771         (e.g., to add "thin-wall" where it is =1).
1772      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
1773        using 2nd hFacZ that is computed from initial (fix domain) hFac
1774      - known limitations of thin wall implementation: not yet coded for sigma
1775        coords; not working with CD-scheme neither.
1776    o pkg/seaice:
1777      - rename recently introduced parameters from (wrong name) AB to
1778        BDF (backward difference time discretisation)
1779      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
1780    o tools/adjoint_options:
1781      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
1782    
1783    checkpoint64t (2014/02/01)
1784    o pkg/ecco
1785      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
1786        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
1787      - replace hard-coded record number and period which only work for monthly
1788        with read-in runtime param that works for other periods (month,day,year)
1789    o pkg/thsice
1790      - corrected store directive fixes thsice adjoint gradient checks
1791    o genmake2 & testreport:
1792      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
1793        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
1794        Update testreport accordingly. No need to set "export OPENAD=true"
1795        in adjoint_options/adjoint_oad anymore (will be removed later).
1796    o pkg/shelfice:
1797      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
1798        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
1799        so that surface forcing applies to k=kSurf if using pkg/shelfice.
1800    o pkg/ctrl, pkg/grdchk, pkg/ecco:
1801      - Changes to make GENARR more modular (i.e. invisible if not used)
1802    o model/src/temp_integrate.F and salt_integrate.F
1803      - re-include store directives that were removed on Dec 27th.
1804    o model/src/external_forcing_surf.F
1805      - add storage directives for EmPmR and PmEpR to avoid recomputation of
1806        seaice_model in the adjoint that is problematic when seaice_model is
1807        turned off in the adjoint. The resolved issue dated back to July when
1808        EXTERNAL_FORCING_SURF call was moved.
1809        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
1810    o pkg/exf/exf_check.F
1811      - fix a small bug again (originally found by Wentao Liu, now found again)
1812      - streamline error output
1813    o pkg/streamice and aim_v23:
1814      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
1815        Apple's /usr/bin/cpp knows what to do:
1816        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
1817        Target: x86_64-apple-darwin13.0.0
1818    
1819    checkpoint64s (2014/01/05)
1820    o tools/adjoint_options:
1821      - switch to fastopt.net TAF server (instead of default fastopt.de) for
1822        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
1823    o model/src:
1824      - remove some unnecessary TAF storage directives in forward_step.F and
1825        in dynamics.F (note: not always removed by TAF, e.g., double storage
1826        of kappaRU,kappaRV in former version of dynamics.F).
1827    o model/src & pkg/ptracers:
1828      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
1829        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
1830        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
1831      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
1832      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
1833      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
1834    o useSingleCpuInput separates single-CPU input from single-CPU output;
1835        for now only implemented for in exf_interp_read.F
1836    o verification/advect_xy:
1837      - fix missing EXCH call in local version of ini_salt.F and update output.
1838    o momentum diagnostics:
1839      - fix which deltaT is used in Total-Tendency diagnostics.
1840      - fix typo in diagnostics for momentum tendency from AB.
1841    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
1842        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
1843    
1844    checkpoint64r (2013/12/08)
1845    o verification/*/results:
1846      - Update reference output of experiments that were passing with just 13 digits
1847         (make it easier to detect future changes in results)
1848    o model/src & pkg/ptracers:
1849      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
1850        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
1851        to inside ptracers_integrate.F ; remove ptracers_advection.F
1852    o coupling interface pkgs:
1853        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
1854      - change the config check to test the agreement of Ocean Depth
1855        with ATM land/sea mask (instead of ATM orography);
1856      - send to coupler the number of coupler time-steps to do for this run:
1857        this allows to check for consistency and don't need anymore to be
1858        specified in parameter file "data";
1859      in coupler:
1860      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
1861      - improve report to log-file of config setting (pass log-file unit to few S/R)
1862    o pkg/compon_communic:
1863      - add coupling send/receive for non-tiled integer vector;
1864      - add S/R to check and stop if any proc has an error (similar to
1865        eesupp/src/stop_if_error.F but single thread and across Comm_World).
1866    o pkg/exch2:
1867      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
1868        through list of all tiles my proc owns.
1869    o model/src:
1870      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
1871        from rTrans) to simplify dependencies (no need to store rTrans anymore in
1872        calling S/R); this affects AD results at machine truncation level:
1873        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
1874        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
1875    o tools/build_options:
1876      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
1877    o coupling interface pkgs:
1878        [compon_communic, atm_compon_interf & ocn_compon_interf]
1879      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
1880        to each S/R that needs it; remove un-used variables.
1881      - change component tile registration (cpl_register.F in both compon_interf
1882        and mitcomponent_tile_register.F) to pass the full list of tiles
1883        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
1884      - with pkg/exch2: adopt the same convention used for I/O to define mapping
1885        towards coupler global array (unless W2_useE2ioLayOut=F):
1886         a) can now use different tiling between atm & ocn comp.
1887         b) no needs to modify the run-Off map when changing tiling (was needed
1888            even if using the same tiling between atm & ocn).
1889         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
1890            full land tiles); not yet tested.
1891      - check for valid mapping from comp. tile to coupler global array
1892      - improve report of tile registration results to log file.
1893    o pkg/exch2:
1894      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
1895        tile-registration (CPL_REGISTER);
1896      - activate (un-comment) definition and setting of "W2_tileIndex" list to
1897        store the local bi,bj indices of each tile;
1898      - also print bi,bj in local report to log file;
1899      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
1900        Jun 2009 modif of pkg/exch2).
1901    o testing on baudelaire:
1902      - run 2 tests at a time: no significant slow down (since enough cpu) and
1903        get the full set of test done earlier
1904      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
1905    o model/src/thermodynamics.F and routines called from it:
1906      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
1907        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
1908        velocity (outp) by adding bolus velocity.
1909      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
1910        mass transport from velocity + lateral grid cell area
1911      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
1912      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
1913     in thermodynamics.F
1914      - remove k from thermodynamics.F and move it to temp_integrate.F
1915        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
1916        loop).
1917      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
1918        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
1919        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
1920        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
1921      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
1922        global_ocean.90x40x15, tutorial_global_oce_biogeo and
1923        tutorial_tracer_adjsens (+ TLM output).
1924    o tools/OAD_support and (verification/*/) code_oad:
1925      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
1926        module conversion ; remove unneeded CPP_EEOPTIONS.h.
1927      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
1928        version (closer to model/inc/CPP_OPTIONS.h).
1929    o model/src:
1930      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
1931        retired list of parameters (routine FREEZE has been replace by surface
1932        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
1933    o pkg/gmredi:
1934      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
1935        velocity (same scheme but affects machine truncation) for GM_AdvForm.
1936      - update output of FWD experiments: front_relax.bvp,
1937        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
1938    
1939    checkpoint64q (2013/11/17)
1940    o verification:
1941      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
1942        tutorial_global_oce_biogeo and global_ocean.90x40x15.
1943      - generate new output (growth & melt) for seaice_itd experiment after
1944        updating the input pickup_seaice files (previously wrong).
1945    o pkg/cost:
1946      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
1947        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
1948        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
1949          cannot be applied to var in common block).
1950        o allows to get results independent of tile-per-proc setting (if using
1951          slower GLOBAL_SUM_SEND_RECV option).
1952      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
1953        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
1954        forward gradients: update output).
1955      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
1956        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
1957    o pkg/mom_common:
1958      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
1959        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
1960        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
1961        ensure that all field value that are used are set.
1962    o tutorial_deep_convection (smag3d):
1963      - add missing scaling in mom_calc_smag_3d.F;
1964      - set smag3D_coeff in input.smag3d such that results do not change.
1965    o pkg/dic:
1966      - change dic_cost.F to compute cost on each tile first and then apply
1967        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
1968        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
1969      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
1970    o eesupp/src & pkg/mdsio:
1971      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
1972        (from pkg/mdsio) since they are no longer used for tape IO.
1973      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
1974        (+ keep a copy in pkg/atm_ocn_coupler).
1975    o verification/isomip:
1976      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
1977    o tools/build_options:
1978      - optfile linux_amd64_ifort11, fast (no ieee) case:
1979        to get a working restart for all experiments, add "-fp-model source"
1980        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
1981    
1982    checkpoint64p (2013/10/20)
1983    o pkg/autodiff:
1984      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
1985        criteria, return to simple (default) tape IO format.
1986    o pkg/mdsio (+ eesupp/src):
1987      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
1988        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
1989      - fix globalFile and singleCpuIO options using simpler global mapping.
1990      - new pairs of scatter/gather vector S/R (one for each type, generated from
1991        template) corresponding to simpler global mapping.
1992      - adread_write.F: switch to new S/R (but leave old calls commented) and write
1993        to globalFile when parameter globalFiles is set to True.
1994      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
1995    o pkg/autodiff:
1996      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
1997        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
1998        missing, just add a STOP if array type do not match.
1999    o pkg/exf:
2000      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
2001         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
2002         and rename array obsSIce to exf_iceFraction.
2003    o tutorial_deep_convection:
2004      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
2005        for now all in this exp. code dir.
2006      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
2007        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
2008    o eesupp/src:
2009      - added SINGLE_DISK_IO option because reading of parameter files on
2010        very large number of processors did not work with existing set-up
2011    
2012    checkpoint64o (2013/09/25)
2013    o pkg/atm_phys & atm_compon_interf:
2014      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
2015    o tools/build_options:
2016      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
2017        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
2018        remove CPP setting (was identical to genmake2 default).
2019    o pkg/gmredi & model/src: Some updating and work done on the residual model.
2020      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
2021      - fixed up the calculation of the eddy stress and how it is added to the
2022        external forcing via taueddy_external_forcing.F
2023      - at the moment, it is very experimental and only works with the variable eddy
2024        diffusivity calculated in gmredi_k3d.F
2025    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
2026        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
2027    o testreport (& tools/do_tst_2+2):
2028      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
2029    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
2030      - remove CPP='cpp -traditional -P' (this is genmake2 default)
2031      - add switch (for big setups) to use 'medium' memory-model (but leave it
2032        commented out for now). Note: needed with FC 19 to compile big setups.
2033    o pkg/atm_compon_interf:
2034      - regroup per field origin (model & pkgs) the coupling storage routines
2035         (which accumalate in time each coupling field)
2036      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
2037        update accordingly + simplify aim_do_physics.F
2038    
2039    checkpoint64n (2013/08/26)
2040    o pkg/bbl:
2041      - update formulation to reduce dispersion of tracer properties in bbl
2042      - replaced horizontal and vertical transport parameters with velocities
2043      - changes results for verification/global_with_exf.yearly
2044    o verification/halfpipe_streamice:
2045      - change to matrix construction; update both Fwd & AD output.
2046    o verification/tutorial_tracer_adjsens:
2047      - OpenAD test: switch to vector-invariant momentum since fluxform with
2048        rStar causes problems with OpenAD; update output.
2049    o tools:
2050      - genmake2: define a common prefix for all temp-file names ; move them
2051        to local /tmp disk (but would be easy to move them back);
2052      - xmakedepend: apply the same switch for temp-files.
2053    o pkg/offline:
2054      - changes for use with rStar (NLFS): assume that we continue to provide
2055        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
2056        output files) and apply r* scaling at each time-step (function of the time
2057        varying Eta field); use normal pickup files (needed for restart with NLFS).
2058    o adjoint with OpenAD:
2059      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
2060        package openad.  This package has to be compiled for all runs with OpenAD
2061        instead of specifying code_oad_all as a modification directory.
2062      - link the fortran templates from tools/OAD_support to the build directory
2063        for preprocessing to avoid conflicts between different setups compiled
2064        simultaneously and simplify cleanup.
2065    o pkg/exf:
2066      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
2067        main model or other pkgs are exchanged in EXF_MAPFIELDS).
2068    o model/src:
2069      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
2070        (similar to do_fields_blocking_exchanges.F).
2071    o tools/genmake2:
2072      - remove TAF output src code just before calling staf (when not doing a fresh
2073        built, will stop if things go wrong with staf).
2074      - fix target "adobj" (left from TAF version-2 transition)
2075    o pkg/diagnostics:
2076      - add a parameter to track the status of pkg/diagnostics activation;
2077        this replace/extend the use of logical param "settingDiags" (to check
2078        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
2079        New S/R to print error message and stop when pkgStatus is not right.
2080      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
2081    
2082    checkpoint64m (2013/08/13)
2083    o model/inc:
2084      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
2085        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
2086    o pkg/kpp & aim_v23:
2087      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
2088    o pkg/seaice:
2089      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
2090        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
2091      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
2092    o eesupp/src:
2093      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
2094        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
2095    o switch to TAF version-2:
2096      - add flow directives to "freeze" naming convention for ad-routines that
2097        are used in I/O routines of adjoint state and associated common blocks
2098        that are used in adcommon.h (backward compatible with version-1)
2099      - update all ad-optfiles (in tools/adjoint_options + few local to some
2100        verification exp) to switch to latest TAF version (currently 2.5.5);
2101        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
2102        out except for diva).
2103      - the major change with TAF version-2 is that both the differentiated
2104        routines and the forward routines (new) are returned as part of the TAF
2105        output source code. Update genmake2 accordingly.
2106      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
2107        with version-2 when compared to TLM or FWD gradient); other experiments
2108        output show minor changes (machine truncation level); update the few AD &
2109        TLM output with 12 matching digits only (some prior to version-2 switch).
2110    
2111    checkpoint64l (2013/08/05)
2112    o model/src:
2113      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
2114      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
2115        when using TAF but only if using OpenAD.
2116    o pkg/mom_common+fluxform+vecinv:
2117      - always set horiz. viscosity arrays to background value before calling
2118        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
2119        only when using variable horiz. viscosity (useVariableVisc=T);
2120      - simplify mom_vecinv.F (only 1 block for momViscosity).
2121    o pkg/mom_common: variable horiz. viscosity in NH code
2122      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
2123        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
2124      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
2125        useBiharmonicVisc & useVariableVisc.
2126      - fix old bug (already in 1rst implementation of variable horizontal viscosity
2127        in calc_gw.F, version 1.27, 2006/06/20):
2128        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
2129        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
2130      - change background horiz viscosity in vertical momentum (gW) to always be
2131        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
2132        any type of variable viscosity, e.g., viscAh/4Grid)
2133      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
2134        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
2135        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
2136        default viscAh,viscA4 is zero).
2137    o model/src:
2138      - extend length of drC & recip_drC from Nr to Nr+1.
2139    o Divided Adjoint (DIVA) with MPI:
2140      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
2141      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
2142        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
2143    
2144    checkpoint64k (2013/07/23)
2145    o tools/OAD_support:
2146      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
2147        and remove it from genmake2.
2148    o tools/build_options:
2149      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
2150        MPI_HEADER_FILES list (let genmake2 find the missing headers)
2151    o verification/halfpipe_streamice:
2152      - change to driving stress formulation; update both Fwd & AD output.
2153    o tools/genmake2 and Divided Adjoint with MPI:
2154      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
2155      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
2156      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
2157        Makefile, which is set by genmake2, and check which mpi-headers are needed.
2158        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
2159      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
2160    o testreport:
2161      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
2162        perform additional runs (number of additional runs is "add_DIVA_runs" taken
2163        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
2164    o verification/lab_sea (AD test):
2165      - change to test Divided Adjoint Run in this set-up (both standard AD test
2166        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
2167    o pkg atm_ & ocn_compon_interf:
2168      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
2169        staggerTimeStep implementation) and disable (retired) corresponding
2170        parameter.
2171    o pkg/offline:
2172      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
2173      - add S/R OFFLINE_CHECK to print offline parameter summary
2174        and stop if loading a file that is not used;
2175      - enable to calculate GMRedi tensor, KPP mixing and convective index
2176        when the corresponding file(s) is/are not specified (but pkg is used).
2177      - comment out resetting of monitorFreq (to endTime) since it still useful
2178        for monitoring CFL numbers and checking offline fields.
2179    o OpenAD:
2180      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
2181        smaller standard output) and generate new (smaller) output (on baudelaire
2182        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
2183    o model/src:
2184      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
2185        (where external_forcing_adjust was called) and change list of arguments;
2186      - merge external_forcing_adjust.F into external_forcing_surf.F
2187      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
2188        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
2189        previously in file "balance_relax.F", now removed); remove corresponding
2190        arrays in FFIELDS.h.
2191      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
2192        a hack for getting back surfaceForcingS (loaded from file) when using
2193        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
2194      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
2195        (was getting only 11 digits for AD-grad, due to different truncation
2196         error in AD code).
2197    
2198    checkpoint64j (2013/07/04)
2199    o pkg/offline:
2200      - to enable the use of other features with pkg offline (e.g., obcs),
2201        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
2202      - comment out "allowFreezing" (now active) in 2 offline testing exp.
2203    o pkg/exf ALLOW_RUNOFTEMP
2204      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
2205      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
2206      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
2207    o pkg/atm_phys:
2208      - allows to add some damping on uVel,vVel (strength only function of k).
2209    o verification, ad-tests:
2210      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
2211        global_ocean_ebm and offline_exf_seaice.thsice.
2212    o verification/halfpipe_streamice:
2213      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
2214        flux input boundary conditions to be ignored; a fix for this bug changed
2215        verification results for forward test.
2216      - add adjoint test.
2217    o pkg/ptracers:
2218      - allow to restart without SOM pickup (resetting SOM to zero).
2219    o pkg/gmredi:
2220      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
2221      - It uses mixing length theory and suppression by steering level effects to
2222        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
2223        to JPO, for more details).
2224      - It also uses the diffusivity to calculate an eddy induced streamfunction
2225        based on a PV closure (rather than a buoyancy closure as in GM).
2226      - New files added to pkg/gmredi:
2227        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
2228          induced overturning streamfunction (called from gmredi_calc_tensor)
2229        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
2230          for use in gmredi_k3d
2231        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
2232          the eddy diffusivity
2233    
2234    checkpoint64i (2013/06/18)
2235    o pkg/cheapaml:
2236      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
2237        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
2238        with pkg/cheapaml.
2239    o utils/python: add subpackage for cubed sphere function, first example is
2240        simple cs.pcol to plot 2D fields on a map
2241    o pkg/streamice:
2242      - This is a new package in MITgcm, which solves dynamic equations for ice
2243         sheets and ice streams
2244      - At the moment it is independent of atmosphere/ocean dynamics, or any
2245        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
2246        ed that this will change)
2247      - There is a new verification exercise that tests it, halfpipe_streamice,
2248        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
2249        rectangular embayment
2250      - halfpipe_streamice is forward-only for now, will have TAF test soon
2251      - for questions, email dgoldber@mit.edu
2252    o pkg/thsice:
2253      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
2254        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
2255      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
2256         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
2257      - allow precip from pkg/cheapaml to make snow over seaice.
2258    o pkg/cfc:
2259      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
2260      - remove atmos CFC 2-D arrays from common bloc (now local variables)
2261      - change some hard-coded constant to run time parameter for reading and
2262        and interpolating atmospheric CFC ; keep same default as previously.
2263      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
2264      - put arguments in standard order: myTime, myIter, myThid
2265      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
2266        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
2267      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
2268      - new routine to print summary of CFC params and check for consistency.
2269    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
2270      similar to thsice_advdiff.
2271      Note that for the B-grid case the routine parameters uc/vc are overwritten.
2272    o pkg/cfc:
2273      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
2274        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
2275      - fix interpolation of atmphspheric CFC between Sorthern and Northern
2276        hemisphere value.
2277    o pkg/seaice:
2278      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
2279    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
2280                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
2281      - requires an additional time level that is stored in the pickup
2282      - you can start with AB2 from a pickup without this time level with
2283        pickupStrictlyMatch = .false.
2284    
2285    checkpoint64h (2013/05/26)
2286    o pkg/cheapaml:
2287      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
2288        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
2289      - consistent treatment of uWind,vWind location: assume everywhere in
2290        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
2291        (Note: was already the case for Tair,Qair advection);
2292        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
2293      - compute diabatic forcing only in the interior (excluding overlap regions)
2294      - fill in array "Qsw" (for short-wave heating);
2295      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
2296        before any update (consistent with MITgcm state var diagnostics);
2297      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
2298        non periodic ; + adjusted for uWind,vWind (C-grid).
2299    o pkg/seaice:
2300      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
2301        add explicitly pkg/exf in experiments that currently use pkg/seaice.
2302      - allows to compile pkg/seaice without pkg/exf.
2303    o tools/OAD_support:
2304      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
2305        of array "ourStepOf" in function rvNextAction (revolve.F90).
2306    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
2307      - change pkg name (to be used with other atmospheric physics pkg)
2308        but by-pass CVS when making the new pkg so that we keep the CVS history.
2309    o pkg/offline:
2310      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
2311        (previously called from pkg/dic_surfforcing_init.F)
2312    o model/src:
2313      - re-order sequence of calls within packages_init_variables.F, using
2314        standard order, except for:
2315         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
2316         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
2317    o new pkg: atm_phys
2318      - add entry point and source code (previously in contrib
2319          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
2320        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
2321      - re-order sequence of calls within packages_readparms.F,
2322         packages_init_fixed.F and packages_write_pickup.F
2323        (but skip packages_init_variables.F because of TAF issues).
2324      - update contrib/*/atm_gray/ experiment.
2325    o pkg/seaice (ITD code):
2326      - simplify and fix the writing of pickup-files for ITD case
2327    o pkg/seaice (ITD code):
2328      - introduce floe size dependent lateral melt for ITD case;
2329      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
2330      - update seaice_itd experiment main output.
2331    o pkg/thsice:
2332      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
2333        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
2334        changed accordingly pkg/atm2d.
2335    
2336    checkpoint64g (2013/05/01)
2337    o pkg/exf ALLOW_RUNOFTEMP
2338      - if defined,  river and glacier runoff temperature can be read-in from
2339        runoftempfile; runoftempfile needs to have same format as runofffile
2340    o pkg/thsice (& pkg/bulk_force):
2341      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
2342        for energy content of Precip + RunOff & Evap (like with pkg/exf).
2343      - change computation domain to always be the interior (without overlap).
2344      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
2345    o verification/tutorial_global_oce_biogeo:
2346      - add preliminary OpenAD setup (still has problems)
2347    o pkg/seaice:
2348      - turn some parameters for choosing the convergence criterion of
2349        the inexact Newton method (JFNK) into runtime parameters for convenience
2350      - clean up seaice_calc_viscosities.F: remove/retire two options for
2351        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
2352        the results of lab_sea/input because a division has been replaced by
2353        a multiplication with the reciprocal (sumNorm)
2354      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
2355        convergence of solver (changes results, of course), and to test some
2356        new features
2357    o model/src:
2358      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
2359      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
2360      - move forcing adjustment (balancing surface forcing) in specific S/R
2361        where might also be applied exchanges (if needed) to forcing arrays.
2362    o pkg/shelfice:
2363      - allow to specify the Ice-Shelf mass per unit area (instead of
2364        shelficeLoadAnomaly) and do the conversion from one to the other
2365      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
2366        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
2367        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
2368        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
2369      - update isomip experiment forward output (get machine truncation error
2370        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
2371    o verification/offline_exf_seaice:
2372      revise data.seaice in input.thermo and input_ad and update results accordingly
2373        HO = 0.2, SEAICE_areaLossFormula = 2,
2374        SEAICE_growMeltByConv = .TRUE.,
2375        SEAICE_doOpenWaterMelt = .TRUE.,
2376      Improve consistency with input.thsice and fix the spurious 500m ice corners
2377    o verification/global_ocean.cs32x15:
2378      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
2379        in icedyn (thsice+seaice-dyn) test and update output.
2380    o verification/offline_exf_seaice:
2381      - adjust list of tested variables (with testreport) and update
2382        standard test output with better slection of monitored fields.
2383    o pkg/cd_code:
2384      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
2385        experiment lab_sea.hb87
2386    o tools/genmake2:
2387      - change default makedepend from the system default to tools/xmakedepend:
2388        When no makedepend is specified, select tools/xmakedepend it the test pass,
2389        otherwise select the system default (if exist and pass the test) or
2390        try to build cyrus-makedepend ; stop if none of the 3 works.
2391    o pkg/exf & pkg/thsice:
2392      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
2393        for energy content of Precip + RunOff & Evap. Assumes:
2394       1) Rain has same temp as Air.
2395       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
2396       3) Run-Off comes at the temp of surface water (with same Cp)
2397       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
2398        put directly into Latent Heat flux & should use water-vapor heat capacity.
2399       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
2400        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
2401    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
2402        (compile when SEAICE_ALLOW_JFNK is defined)
2403    o pkg/thsice:
2404      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
2405        implementation): move THSICE_AVE call after the advection (called directly
2406        from thsice_do_advect.F).
2407    o verification/global_ocean.90x40x15 and OpenAD:
2408      New experiment for OpenAD is identical to the one in input_ad except that
2409        multiDimAdvection=.FALSE.,
2410      There is still an issue with this.
2411    o pkg/thsice:
2412      - account for ice velocity (ocean relative velocity) in turbulent heat flux
2413        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
2414        and offline_exf_seaice (main test).
2415    
2416    checkpoint64f (2013/03/31)
2417    o verification/OpenAD:
2418      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
2419    o verification/isomip, pkg/shelfice and OpenAD:
2420      - add OpenAD setup to this exp and make shelfice package work with OpenAD
2421    o verification/tutorial_global_oce_biogeo:
2422      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
2423    o verification/offline_exf_seaice:
2424      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
2425    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
2426      - add OpenAD setup to this exp and make ptracers package work with OpenAD
2427    o pkg/seaice/seaice_evp.F:
2428       mask the asymmetric contribution of the ice-ocean stress (when
2429       the turningAngle is non-zero) over open water to avoid stripes
2430       in the EVP-solutions after many EVP-substeps. This does not change
2431       the verification experiment (because turningAngle=0 in that experiment),
2432       but will affect other EVP solutions with turningAngle.ne.0
2433    o verification, AD & TLM output:
2434      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
2435        additions and multiplications which affect results at machine truncation
2436        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
2437        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
2438        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
2439        digits of matching.
2440    o pkg/seaice:
2441       modify lsr-algorithm so that it vectorizes AND converges by using a
2442       "zebra" method: split vector loop into two with step size 2; this
2443       solves a general convergence problem for the JFNK solver on a vector
2444       computer. It has the potential to even improve convergence for
2445       non-vector machines, but it does change the results so it is turned
2446       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
2447       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
2448    
2449    checkpoint64e (2013/03/05)
2450    o pkg/ecco and several verification experiments:
2451       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
2452       from ecco package, and revert to unified routine in model/src/
2453       Adjust verification experiments accordingly, especially gloal_oce_llc90
2454       Should conclude long-standing work by Gael to reconsile the_main_loop with
2455       ECCO and will enable OpenAD's revolve loop in ECCO setup.
2456    o pkg/generic_advdiff:
2457      - implement compressible flow method for multi-dim advection (similar to
2458        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
2459        TAF generates many recomputations) to use it; no yet coded with implicit
2460        vertical advection.
2461      - change experiment advect_cs (new output) and advect_xy (same output)
2462        to test compressible flow multi-dim advection.
2463    o pkg/generic_advdiff:
2464      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
2465        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
2466    o pkg/seaice:
2467      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
2468        bug affects two verification experiments (lab_sea and lab_sea.hb87),
2469        recover old (wrong) results by setting noSlipFac = 2. in
2470        seaice_calc_strainrates.F;
2471      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
2472      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
2473        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
2474      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
2475    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
2476      - new subroutines seaice_lsr_tridiagu/v
2477      - introduce loop bounds i/jmin/max to be able to use a restricted
2478        additive Schwarz method, but not used for now.
2479      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
2480      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
2481    o OpenAD support
2482       Reorganize S/R call for overall time-stepping loop to facilitate
2483       OpenAD revolve loop replacement
2484       (new S/R main_do_loop.F)
2485    o model/src:
2486      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
2487      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
2488        ADAMS_BASHFORTH2.
2489    o pkg/cheapaml:
2490      - add new parameter (default=F, same as before) to disable full domain
2491        (including land) periodicity in X & Y dir.
2492      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
2493        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
2494        into single S/R CHEAPAML_TIMESTEP.
2495    
2496    checkpoint64d (2013/02/17)
2497    o pkg/monitor (angular momentum):
2498      - do not add Eta contribution to the total AM if using rigid-lid;
2499      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
2500      - horizontal discretisation: compute Zonal wind contribution separately for
2501        each component (instead of from cell centered averaged) and use the 4
2502        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
2503      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
2504        FreeSurf) if using vectorInvariant momentum.
2505    o model/src (horizontal grid):
2506      - move initialisation of all horizontal grid arrays to null value
2507        from specific horizontal grid S/R to main S/R INI_GRID;
2508      - add 2 new arrays to project model C-grid velocity on to zonal direction
2509        (similar to AngleCosC & -AngleSinC but at U and V point location) and
2510        compute them in S/R CALC_GRID_ANGLES.
2511    o pkg/seaice: replace a hard coded parameter by a runtime parameter
2512        SEAICE_JFNK_tolIter
2513    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
2514        preconditioner for JFNK (run LSR into the overlaps as far as possible,
2515        i.e OLx/y-2, but overwrite the solution in the overlaps)
2516      - extend loop range in seaice_calc_viscosity
2517      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
2518      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
2519      - slightly modify loops in tridiagonal solver lsr-preconditioner
2520      - by default remove the extra exchange in seaice_preconditioner with a
2521        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
2522      - modify offline_exf_seaice so that old results without RAS are reproduced
2523        for output.dyn_jfnk.txt
2524      in seaice_fgmres.F (unrelated to RAS)
2525      - add a cpp-flag option for a re-ordered mapping (potentially more
2526        efficient), but because this changes the results, turn it off by
2527        default
2528      - replace the save statement by local common blocks
2529    o utils/matlab:
2530      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
2531      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
2532        instead of local script "load_cs.m".
2533    o pkg/seaice:
2534      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
2535        to the scalarProductMetric and the unrolling. By chance this does not
2536        change the verification experiment, because of the particular domain
2537        decomposition
2538    o pkg/diagnostics:
2539      - change default missing_value from UNSET_RL to -999.
2540    o pkg/layers: improve vectorization of layers_fluxcalc.F
2541      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
2542        time spent in this routine by more than a factor of 3 on an NEC-SX8
2543      - step 2: replace search algorithm by a bisection algorithm found in
2544        Press et al. Numerical Recipes in Fortran. This algorithm can be
2545        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
2546        For now, use this algorithm only for TARGET_NEC_SX defined.
2547      - moved the search algorithm into a separate subroutine, that is kept
2548        within the same file for automatic inlining.
2549      - modified catching potential errors
2550    o pkg/ecco:
2551      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
2552    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
2553      - modifications for ALLOW_GENTIM2D_CONTROL
2554      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
2555      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
2556      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
2557      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
2558    o model/src:
2559      - account for moist thermodynamics in (dry) potential temperature equation;
2560        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
2561        and cpl_aim+ocn.
2562      - also switch to standard compiler (gfortran, was using ifort previously)
2563        for fizhi-cs experiments reference output.
2564    o pkg/ctrl:
2565      - 1st step toward generic time-varying control variable (2D) via CPP option
2566        ALLOW_GENTIM2D_CONTROL
2567      - note new namelist ctrl_nml_genarr in data.ctrl
2568    o verification/global_ocean.cs32x15:
2569      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
2570        thsice calling sequence and update "output.icedyn.txt" output file.
2571    o pkg/ptracers:
2572      - from Ryan A.: code to allow to restart a tracer at regular time interval
2573        specifying a reset frequency and a reset-phase (for each tracers).
2574    o pkg/thsice:
2575      - implement new sequence of calls for thsice+seaice:
2576          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
2577          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
2578      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
2579        in CPP_OPTIONS.h) to recover old sequence;
2580      - update diagnostics for Intermediate State thsice diagnostics: now filled
2581        just before advection (instead of just after advection in old sequence);
2582      - update output of experiment offline_exf_seaice (standard test);
2583      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
2584        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
2585    o pkg/aim_v23:
2586      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
2587      - use standard pkg/mdsio routines to read & write CO2 pickup file;
2588      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
2589      - Implement new sequence of calls for seaice advection (with thsice and
2590        seaice diffusion): do ice advection after ice-Thermodynamic (previously
2591        was done before); change aim_do_physics.F (split the bi,bj loops block);
2592      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
2593    o pkg/thsice:
2594      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
2595        where just seaice diffusion is used without seaice-dynamics.
2596    
2597    checkpoint64c (2013/01/18)
2598    o pkg/seaice:
2599      - add a parameter JFNKres_tFac that can replace JFNKres_t
2600        (= JFNKres_tFac*JFNKresidual before JFNK solver)
2601      - add a line search option to the JFNK solver
2602      - move update of u/vIce and computation of initial residual into a separate
2603        routine (same file); makes the code a little easier to read (?)
2604      - the line search requires computation of the residual and for some reason
2605        I cannot do the update of u/vIce at the beginning of the Newton loop
2606        without changing the results, so we move computation of the new residual
2607        also to the end of the Newton loop, even without the line search
2608    o pkg/mdsio:
2609      - write missing value (corresponding to undefined array value) to meta files;
2610        skip this if missing value is one (UNSET_RL would be a better value for the
2611        case of undefined missing value but it's current the default missing-value);
2612        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
2613    o pkg/exf & thsice:
2614      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
2615        diagnostics) even when SHORTWAVE_HEATING is #undef;
2616    o verification/cfc_example:
2617      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
2618        illustrate how to use it).
2619    o verification/offline_exf_seaice:
2620      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
2621        files to only one time-record.
2622      in input.thermo: narrow the 2 bands of low initial ice-concentration near
2623        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
2624        snapshot output; same mcPheePiston value as in thsice with
2625        surf-current=0.2m/s.
2626      in input.thsice: similar set-up as in input.thermo (channel with same seaice
2627        initial conditions).
2628    o verification/cfc_example:
2629      - update file "data" with more standard choice (default rotationPeriod,
2630        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
2631        set deltaTFreeSurf to deltaTtracer) and update the output.
2632    o pkg/layers:
2633      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
2634      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
2635    o verification/offline_exf_seaice:
2636      - set all {field}period to zero for constant-in-time forcing (not tested
2637        anywhere else).
2638    o verification/offline_exf_seaice:
2639      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
2640      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
2641    o model/src:
2642      - implement Finite-Volume method for (hydrostatic) presure gradient
2643        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
2644    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
2645      - In order to be compatible with the default EVP code, this requires changing
2646        the EVP code around a little; and because any small change immediately
2647        breaks the lab_sea.hb87 verification experiment, the reference output is
2648        updated two times (each time the remaining aggrement was only 2 digits):
2649        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
2650        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
2651        The adjoint test lab_sea.evp also needed to be updated.
2652      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
2653        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
2654        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
2655        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
2656        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
2657        kept obscure, because I need to test it a little more.
2658    o pkg/cheapaml:
2659      - fix few incorrect type (_RL/_RS) in subroutine calls.
2660    o pkg/seaice:
2661      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
2662        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
2663    o model/src:
2664      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
2665        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
2666        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
2667    o pkg/cheapaml:
2668      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
2669        update output of experiment cheapAML_box.
2670      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
2671        and set them only in one place (cheapaml_readparms.F).
2672      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
2673      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
2674        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
2675    o model/src/the_main_loop.F:
2676      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
2677    o pkg/seaice:
2678      - remove legacy branch code.
2679      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
2680    o verification/*/code*/SEAICE_OPTIONS.h:
2681      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
2682        SEAICE_CAP_HEFF).
2683    o pkg/cheapaml:
2684      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
2685        to load new forcing fields.
2686      - add missing "_d 0" where it's needed; + some editing (improve indentation).
2687      - remove switch to "-r8" compiler option (no longer needed) in verification
2688        cheapAML_box, keep same output (small trucation error differences).
2689    o verification/offline_exf_seaice:
2690      - add thermodynamics only test.
2691    o verification/cheapAML_box:
2692      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
2693        keep same output (same 14 digits for cg2d).
2694      - switch on "-r8" compiler option (some numerical values are missing
2695        the "_d 0") and update output (only 6 digits for cg2d were preserved).
2696    
2697    checkpoint64b (2012/12/24)
2698    o pkg/cheapaml:
2699      - remove un-used variables (Qnet,EmPmR) from pickup files.
2700      - store tendency of advected variables into cheapaml pickup file
2701        and fix the AB-2 restart.
2702    o verification/offline_exf_seaice and lab_sea adjoint:
2703      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
2704      - switch to 4 time steps in offline, consistent with lab_sea.
2705      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
2706      - update results after change of experiment seaice.
2707    o pkg/seaice:
2708      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
2709        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
2710        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
2711        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
2712    o model/src:
2713      - add run-time parameter to select CG2D solver minimum-residual solution
2714        (in case of a poor convergence).
2715    o pkg/seaice/seaice_lsr.F
2716      - move calculation of matrix coefficients into new
2717        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
2718        file; the main purpose of this change is to be able to reuse the code
2719        in S/R SEAICE_PRECONDITIONER
2720      - modify the computation of the residual so that the mass of sea-ice
2721        is not used twice; this simplifies the calculations, but since
2722        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
2723        not tested in testreport---this does not affect the testreport results.
2724    o verification/seaice_obcs:
2725      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
2726        verification/lab_sea/input.salt_plume; changes results/output.txt*
2727    o model/src:
2728      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
2729    o pkg/seaice:
2730      - improve description of parameters in seaice_fgmres.F and start
2731        cleaning up the code
2732      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
2733        second argument
2734      - add a metric based on grid cell area to SEAICE_SCALPROD; update
2735        results of offline_exf_seaice.dyn_jfnk
2736      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
2737    o pkg/aim_v23:
2738      - fix an other bug in dissipation heating (grid-cell area was missing).
2739    o model/src + pkg/seaice:
2740      - add global (multi-tile) linear solver for pair of tri-diagonal system
2741        along X and Y lines, respectively for U and V component.
2742        Note: 1) MPI and cube-exchange not yet coded.
2743            2) probably not accurate for poorly conditioned / large size problem.
2744      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
2745        default: not compiled and not used.
2746    o pkg/seaice:
2747      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
2748        introduce bi/bj loops and use global_sum_tile_rl instead of
2749        mpi_allreduce in seaice_fgmres.F
2750      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
2751      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
2752      - add a verification experiment for JFNK in offline_exf_seaice
2753    o verification:
2754      - change (for now, only fwd test) offline_exf_seaice experiment:
2755        use a re-entrant channel with idealized coastline (trapezoidal shape)
2756        at southern boundary to explore seaice dynamics and thermodynamics
2757        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
2758        secondary test (input.thsice) use thermodynamics only with SST relaxation.
2759      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
2760    o pkg/exf:
2761      - disable "sstExtrapol" when Nr=1
2762    o verification:
2763      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
2764        to test pkg/cheapaml.
2765    o pkg/aim_v23 & pkg/shap_filt:
2766      - fix dissipation heating (erroneous gravity multiplication factor).
2767    o pkg/seaice:
2768      - remove unused field pressPre from jfnk solver
2769      - rename two subroutines in seaice_preconditioner.F
2770    o eesupp/src:
2771       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
2772    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
2773       - remove wrong parts of the rhs and the lhs (were in there
2774         because I did not understand the concept of this preconditioner)
2775       - add an exchange between u- and v-sweep. This increases communication
2776         by a factor of two but improves the convergence of jfnk. Ideally,
2777         one would like the u- and v-sweep to be independent. So far within
2778         undocumented ifdefs
2779       - reorganize the extra computations for printing the residuals
2780    o tools/genmake2:
2781      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
2782        since it's not necessary (and was preventing to use MNC in some cases).
2783    
2784    checkpoint64a (2012/11/16)
2785    o pkg/autodiff:
2786      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
2787        autodiff_readparms.F no longer depends on calling order (within
2788        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
2789        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
2790        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
2791    o pkg/obcs:
2792      - adding tidal velocity forcing capability to obcs
2793        for usage example, see verification/seaice_obcs/input.tides
2794    o pkg/seaice:
2795      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
2796        SEAICE_LSRrelaxU/V
2797      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
2798    o pkg/aim_v23:
2799      - implement heating from friction (bottom friction and stratospheric drag).
2800    o pkg/shap_filt:
2801      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
2802        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
2803    o model/src:
2804      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
2805        time-constant addMass field from file (addMassFile);
2806      - support for heating due to friction (and Kinetic Energy dissipation):
2807        add option, run-time switch and 3-D field array + support code ; each pkg
2808        or S/R can add heating contribution (if there is a sink of KE); the sum is
2809        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
2810  o pkg/seaice:  o pkg/seaice:
2811    - complete merge of ITD code into seaice_growth.F    - complete merge of ITD code into seaice_growth.F
2812      from MITgcm_contrib/torge/itd/code/      from MITgcm_contrib/torge/itd/code/
# Line 15  o pkg/seaice: Line 2818  o pkg/seaice:
2818      + introduce global field etaZ      + introduce global field etaZ
2819      + add different methods for computing etaZ, for now the old      + add different methods for computing etaZ, for now the old
2820        method (simple averages of eta to Z-points) is hardwired        method (simple averages of eta to Z-points) is hardwired
2821      + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,      + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
2822        seaice_preconditioner        seaice_preconditioner
2823    - simplify computations for SEAICE_ZETA_SMOOTHREG    - simplify computations for SEAICE_ZETA_SMOOTHREG
2824    - seaice_preconditioner:    - seaice_preconditioner:
2825      + replace one remaining press by pressLoc (mistake)      + replace one remaining press by pressLoc (mistake)
2826      + adjust printing of residuals      + adjust printing of residuals
2827    - improve I/O of diagnostics of JFNK in seaice_jfnk.F:    - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
2828      + add (SEAICE.h) and rename some counters (initiliased in      + add (SEAICE.h) and rename some counters (initiliased in
2829        seaice_init_fixed.F)        seaice_init_fixed.F)
2830      + add _BEGIN/END_MASTER (myThid)  around print statements      + add _BEGIN/END_MASTER (myThid)  around print statements
2831      + print total number of iterations and failures over SEAICE_monFreq      + print total number of iterations and failures over SEAICE_monFreq
# Line 34  o pkg/seaice: Line 2837  o pkg/seaice:
2837      (seaice_jfnk.F, seaice_fgmres.F)      (seaice_jfnk.F, seaice_fgmres.F)
2838    - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes    - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
2839      a serious convergence problem when open boundaries are involved      a serious convergence problem when open boundaries are involved
2840  o pkg/ggl90: fix computation of control volumes for the case of  o pkg/ggl90: fix computation of control volumes for the case of
2841    ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes    ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
2842    up half a grid cell from C-centered to W-centered (pointed out by C. Eden)    up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
2843  o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC  o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
2844  o pkg/autodiff  o pkg/autodiff
2845    - Add inAdMode switch for SEAICEuseDYNAMICS:    - Add inAdMode switch for SEAICEuseDYNAMICS:
2846      SEAICEuseDYNAMICSinAdMode      SEAICEuseDYNAMICSinAdMode
2847      (extend logic in ADAUTODIFF_INADMODE_SET)      (extend logic in ADAUTODIFF_INADMODE_SET)
2848  o pkg/seaice  o pkg/seaice
2849    - Step 1 of merging ice-thickness distribution (ITD) code from    - Step 1 of merging ice-thickness distribution (ITD) code from

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