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revision 1.1950 by dimitri, Thu Dec 19 01:06:09 2013 UTC revision 1.2288 by gforget, Mon Jan 9 19:28:21 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 useSingleCpuInput separates single-CPU input from single-CPU output  o pkg/exf:
8  o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the    - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
9    SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8      issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc.EQ.UNSET_RL;
10        generalize tests on interpMethod, nlat, and lon_inc to all exf variables.
11      - summary: skip detailed field report if not used (empty file-name).
12    o tools/xmakedepend:
13      - In case line editor "ed" is missing, switch to "sed" command to clean-up
14        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
15    o pkg/exf:
16      - change definition of "hflux" input file to always include Short-Wave;
17        this is now consistent with hflux computation (if using bulk-formulae)
18        and hflux diagnostic & documentation (in EXF_FIELDS.h).
19    
20    checkpoint66b (2016/12/01)
21    o model & momentum pkgs:
22      - implement fully implicit bottom friction combined with implicit surf.
23        pressure, for now, only in hydrostic formulation:
24        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
25          and run with selectImplicitDrag=2 ;
26        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
27      - partial implicit time-stepping (bot. friction + vert. visc first, then
28        surf. press) corresponding to selectImplicitDrag=1 should be applicable
29        to NH formulation but not available until we solve for surf. pressure
30        increment (instead of full etaN).
31      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
32        with implicit vertical viscosity.
33    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
34      - this is a first version that includes many regularisations that may
35        not all be necessary, to be sorted out,
36      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
37      - change one verification experiment in seaice_itd to use and test new code
38      - seaice_growth: catch a case where the argument of log can be zero
39        or smaller (important for code stability)
40    o model/src:
41      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
42        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
43        similar A.X'=Y' system (with same matrix A) in subsequent calls;
44        switch based on errCode (In/Out) argument value; in calling routines,
45        initialise errCode before first call.
46    
47    checkpoint66a (2016/10/18)
48    o pkg/bling:
49      - BLING package now loads in atmospheric pCO2 file using exf package routines
50        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
51    o model/src & pkg/ptracers:
52      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
53        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
54        implicitDiffusion (respectively) are used (even without momImplVertAdv
55        or temp,salt,PTRACERS_ImplVertAdv).
56    o model/src & generic_advdiff:
57      - add parenthesis in main diagonal calculation of implicit vertical
58        diffusion matrix (impldiff.F & gad_implicit_r.F).
59        This affects results at machine truncation level; update output of many
60        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
61    o pkg/mom_commom & generic_advdiff:
62      - add deep atmosphere and anelastic scaling factor in implicit vertical
63        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
64    o model/src:
65      - remove few unnecessary temp array copies in solve_tridiagonal.F
66        & solve_pentadiagonal.F
67    
68    checkpoint65z (2016/09/28)
69    o pkg/seaice: fix multithreading for seaice_fgmres.F
70      - remove unecessary variables from common blocks
71      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
72        basis, that are stored in commom blocks (including integer variable i1)
73      - clean up code a little by removing commented lines that refer to
74        original code
75      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
76    o MITgcm manual:
77      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
78        preliminary documentation for generic controls (8.3; ctrl.tex),
79        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
80        ecco_costfunction.tex
81    o pkg/ecco:
82      - update and cleanup list of CCP options
83      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
84        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
85      - add checks that retired run-time options are not used, and in relation
86        to gencost_mask and gencost_errfile
87      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
88        gencost_nrecperiod
89      - fix m_eta computation for virtual salt flux case
90      - add m_horflux_vol case (selected via gencost_barfile) that computes
91        transports via cost_gencost_boxmean (gencost_flag=-3)
92      - use gencost_flag more systematically (i.e., avoid using gencost_name)
93        for code switches (aside from physical variable selection)
94    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
95      attempt appears to be a bit of a hack and my need some repair down the road
96    o pkg/exf:
97      - interpolation near South Pole: fix criteria on input field latitude.
98    o pkg/icefront & pkg/exf:
99      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
100        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
101    o pkg/exf:
102      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
103        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
104        (add suffix "_out" instead of a prefix); keep same record number as in
105        input file but always write record 1 first (to avoid a STOP in I/O S/R).
106        Change output file content by writing interpolated field before applying
107        land-sea mask (helpful for debug).
108      - 2 compon. vector interpolation with rotation: apply scaling factor on
109        each compon. (Eastward and Northward) just before rotation.
110    o pkg/bling:
111      - Cleaned package. Removed not needed code and comments.
112      - adjoint example now works
113        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
114    o pkg/ptracers:
115      - add Bruno Deremble's code to complete the linear surface correction
116        for tracer conservation;
117      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
118    
119    checkpoint65y (2016/07/29)
120    o pkg/debug (stats):
121      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
122        proc/thread mapping);
123      - fix Min & Max for case where 1 thread has only empty tiles;
124      - use RL variable to count number of wet grid points (with big domain,
125        can be too large to fit into integer*4).
126    o pkg/monitor:
127      - use RL variable to count number of wet grid points (but used only for del2)
128      - add new routine to compute Advective CFL within tracer time-stepping with
129        writing delayed until next monitor output.
130    o pkg/obcs:
131      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
132    o pkg/cal:
133      - calandar-dump: treat case myTime < timePhase in the same way as in
134        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
135    o pkg/dic & seaice:
136      - fix compilation of ocean component for coupled atm+ocn model with
137        seaice dynamics & dic.
138    
139    checkpoint65x (2016/06/11)
140    o add a license text file in main MITgcm tree.
141    o added pkg/bling:
142      - intermediate complexity biogeochemical model
143      - see bling_description.txt for details
144      - verification experiment is global_oce_biogeo_bling (for now, in
145        Contrib/verification_other/); tested daily on baudelaire with gfortran.
146      - add entry point in pkg/gchem for new pkg "bling".
147    o pkg/seaice: fix tensile stength computation
148      - replace global field tensileStrength by tensileStrFac
149      - tensileStrFac can be computed once in S/R seaice_init_varia
150      - fortunately that does not affect any verification results
151    
152    checkpoint65w (2016/05/12)
153    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
154         with ECCO_CTRL_DEPRECATED defined
155    o verification/global_ocean.cs32x15:
156      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
157        with "selectNHfreeSurf=1".
158    o model/src (non-hydrostatic free-surface):
159      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
160        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
161      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
162        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
163        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
164        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
165      - Update output (changes at machine truncation level) of verification exp:
166        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
167        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
168    o pkg/seaice: ITD code
169      - fix picking up from a single category model by initialising
170        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
171      - split a long warning message in seaice_check_pickup.F into two lines,
172        because NEC SX-ACE cannot deal with the long line.
173    o model/src:
174      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
175    o pkg/seaice:
176      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
177    o pkg/seaice:
178      - add basal stress as parameterisation for grounding ice
179        following Lemieux et al. (2015)
180      - turn on by setting new parameter SEAICEbasalDragK2 to a value
181        larger than 0. Lemieux et al. (2015) recommend 15.
182      - The adjoint complains with extra recomputations so there is also a
183        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
184        order to postpone the problem
185      - compile the new code in lab_sea
186    o verification/halfpipe_streamice:
187      - update both TAF and OpenAD adm output (machine truncation differences)
188    
189    checkpoint65v (2016/04/08)
190    o verification/advect_xz:
191      - increase overlap size from 3 to 4 and add new secondary test for PQM
192        advection scheme (with mono & wino limiter).
193      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
194    o model/src:
195      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
196        added phi0Ref) to set vertical axis origin and phiRef origin;
197        keep Ro_SeaLevel for backward compatibility (with a warning).
198       According to coordinate and fluid type:
199        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
200        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
201        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
202        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
203      - remove Ro_SeaLevel from ATM experiment parameter files;
204      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
205        complement; update output.txt (changes at machine truncation level).
206    o pkg/seaice/seaice_evp.F
207      - simplify computation of deltaZ and zetaZ to simple averaging following
208        Bouillon et al. (2013). This removes a lot of code, but also changes
209        verification experiment lab_sea.hb87 -> updated
210    
211    checkpoint65u (2016/03/14)
212    o pkg/generic_advdiff:
213      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
214        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
215        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
216        testing and not for actual use.
217    o model/src:
218      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
219        origin r = rF(1);
220      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
221        in EOS for height coordinate: enable to include NH Pressure or to use
222        more accurate pressure vertical profile; options not linked to EOS type
223        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
224      - start to implement variable gravity (along vertical): for now, only with
225        z-coords (not even z*).
226      - add Ideal Gas equation of state for height coordinate.
227      - update OpenAD output (affected at machine truncation level) of exp:
228        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
229    o pkg/exf:
230      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
231        of exf interpolation (before any rescaling, rotation or interpolation
232        to velocity point) for each field that gets loaded from file. This option
233        identically mimics the input file organization (e.g. record numbers in year
234        by year input files) besides the change in horizontal grid.
235      - add rotateStressOnAgrid run-time switch so that wind stress fields
236        can be provided on the A-grid in zonal/meridional direction and
237        rotated on the fly. This only applies to the case when the exf
238        interpolation is off and rotateStressOnAgrid is false by default.
239    o model/src:
240      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
241        it's also used with pkg/atm_phys) and add few more parameters (but still
242        inactive, src code yet to come)
243    
244    checkpoint65t (2016/02/10)
245    o pkg/atm_phys:
246      - from Ruth Geen: add optical depth dependence on CO2 concentration.
247    o model/src:
248      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
249        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
250        Update output of exp. deep_anelastic (changes at truncation level).
251    o tools:
252      - add a hack in "remove_comments_sed" (used only with TAF) for recent
253        version of OpenMPI (shipped with FC.23): comment out the new header
254        file "mpif-sizeof.h" which causes problems to TAF.
255    o pkg/seaice:
256      - change the termination criterion so that maxits (SEAICElinearIterMax)
257        has an effect
258      - unify iteration parameters for implicit solvers (JFNK and Picard)
259        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
260        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
261        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
262        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
263        SEAICEnonLinTol     replaces JFNKgamma_nonlin
264      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
265      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
266        use with SEAICEuseKrylov
267    o pkg/seaice/seaice_lsr.F
268        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
269        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
270        an effect.
271    o pkg/seaice: add two new parameters
272      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
273        parameter is not in any namelist)
274      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
275        a preconditioner for the non-linear Newton iteration of the JFNK
276        solver
277    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
278      affects some experiments at truncation level:
279      - global_ocean.cs32x15.icedyn (11 digits),
280      - global_ocean.cs32x15.seaice (11 digits),
281      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
282      - also update global_ocean.cs32x15 adjoint and tangent-linear results
283    o pkg/salt_plume & pkg/thsice:
284      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
285        connect salt_plume flux to ATM-OCN coupling pkgs interface:
286       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
287         export to coupler interface) even without compiling pkg/salt_plume ;
288       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
289         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
290    o pkg/dic:
291      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
292        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
293        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
294      - move also update with values from ATM-OCN Coupler in the same new S/R
295        (previously done in ocn_apply_import.F).
296    o tools/adjoint_options:
297      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
298        has been changed on Jan 14, 2016.
299    o pkg/ggl90:
300      - add alternative discretisation of vertical shear (off by default), to
301        compute the mean (@ grid-cell center) of vertical shear compon instead of
302        vertical shear of mean flow (@ grid-cell center).
303      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
304        results on adjacent faces of cubed-sphere grids; this fix the restart.
305    o pkg/atm_compon_interf:
306      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
307        pass last value, stored directly before export to CPL ;
308        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
309      - remove atmSLPr from pickup files (no longer needed for restart)
310    
311    checkpoint65s (2016/01/13)
312    o eesupp & genmake2:
313       - first check for Function ETIME and, if it fails, then check for subroutine
314         ETIME and consistent output; use the appropriate version in timers.F
315    o model/src:
316      - to check restart test, add option to apply EXCH to U,V earlier, just before
317        integr_continuity; turned off by default.
318    o pkg/dic:
319      - remove CPP option USE_ATMOSCO2 (not needed)
320    o tools/tst_2+2:
321      - try to ignore difference between +0 and -0 in binary file, causing test
322        to fail for no good reason.
323    o eesupp & genmake2:
324      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
325        but also check (in genmake2) that test runs and returns meaningful results.
326    o coupler pkgs:
327      Finish implementation of optionally-exchanged variable switches (started on
328       Nov 12) with addition of few more exchanged fields, including 2-way exchange
329       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
330       advection in OCN component; this requires sequential coupling.
331      coupler (pkg/atm_ocn_coupler):
332      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
333        routines (useful for debug).
334      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
335         flux, DIC fields) if corresponding switch is ON.
336      - add option to export RunOff to OCN (to use for DIC river input)
337      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
338      components (pkg/atm_ & ocn_compon_interf):
339      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
340        optionally exchanged fields; add a check & stop in cpl_readparms.F.
341        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
342        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
343      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
344        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
345      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
346      - hold in common block coupler optionally-exchanged variable switch
347        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
348      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
349        this is intended to replace the OCN cplFldtave.* output files (not updated
350        to contain new additional exchanged fields).
351    o pkg/dic:
352      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
353    o pkg/thsice:
354      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
355        and writing of thsice pickup files.
356    o pkg/atm_compon_interf:
357      - move all field individual export-call out of cpl_export_import_data.F
358        into new S/R ATM_EXPORT_FIELDS
359    o pkg/atm_compon_interf:
360      - store state variables (for now, only thSIce fields) just before beeing
361        exported (in cpl_export_import_data.F, like on ocean side) instead of from
362        atm_store_my_data.F like all exported fluxes.
363      - new version of pickup_cpl: write field names into meta file and read meta
364        file to find field postion in pickup. Also only write/read fields meeded for
365        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
366    o pkg/dic:
367      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
368    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
369        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
370        value can be from domain [0,1] to average between the two methods
371    o pkg/atm_phys:
372      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
373        hold fixed in time).
374    
375    checkpoint65r (2015/12/21)
376    o pkg/seaice:
377        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
378        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
379    o pkg/seaice:
380      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
381        when SEAICEscaleSurfStress=.TRUE.,
382      - apply areaW and areaS in S/R seaice_calc_lhs
383    o pkg/atm_phys:
384      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
385        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
386        for individual contribution (convection, LSC cond, radiation)
387      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
388        information); activated with: solar_exponent=0. and wv_exponent=-1.
389    o pkg/ggl90:
390      - within IDEMIX add upper limit for horizontal group velocity to
391        avoid instability problems in the explicit horizontal diffusion term for
392        long time steps or high resolution
393    o pkg/diagnostics:
394      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
395        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
396    o testreport:
397      - remove "-v" (verbose option) in default mpirun command.
398    o pkg/seaice/seaice_growth:
399      - catch potential division by zero in ITD code, does not change
400        verification results
401    o pkg/ecco:
402      - retire old codes to the Attic. The calls to retired functions are
403        left in a commented form in case they ever need to be re-activated.
404      - ecco_check.F: issue warning if any old CPP option is
405        defined that corresponds to retired codes -- then stop.
406    o pkg/atm_compon_interf:
407      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
408        coupler: use last time-step value instead of average over cplSendFrq_iter
409        time-step, similar to what is done for seaIceMass.
410        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
411    o eesupp & genmake2:
412      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
413        <= remove until a fix is found for some ifort version on ia32 machine.
414    o pkg/seaice/seaice_evp:
415      - refine residual computation
416    
417    checkpoint65q (2015/11/18)
418    o pkg/seaice/seaice_evp:
419      - fix residual computations so that they no longer affect the actual
420        simulation code
421      - fix seaice_readparams to be able to actually set new parameters
422        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
423    o model/src:
424      - fix wrong truncation (single prec) from "FLOAT" function in expressions
425        like: deltaT*FLOAT(myIter) when myIter is large:
426         a) replaced by DFLOAT (if not seen by TAF);
427         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
428    o pkg/aim_v23:
429      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
430        when pickupSuff is set ; do write rolling pickups + at the end of the run.
431    o pkg/atm_ocn_coupler + ocn_compon_interf:
432      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
433        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
434        add corresponding call in DO_OCEANIC_PHYS.
435    o coupler pkgs:
436      Start a new way to set-up optionally-exchanged variables (previously, only
437       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
438       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
439       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
440       compononent param default can be set accordingly).
441      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
442       but rather applies to a group a fields (going both ways like for DIC)
443       and corresponds to an option of coupling config.
444      coupler (pkg/atm_ocn_coupler):
445      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
446        and read namelist directly (without eessup S/R calls) instead of
447        in the very un-flexible old way, 1 param per line, in fixed order;
448      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
449        cleanly in CPL_CHECK_CPLCONFIG
450      - add new coupling-exchange selectors (some not yet active) including
451        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
452                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
453      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
454        component ; called directly from coupler.F, after comp. registrations;
455      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
456         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
457          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
458      components (pkg/atm_ & ocn_compon_interf):
459      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
460        CPP header file in all pkg source files.
461      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
462        ATM/OCN_CHECK_CPLCONFIG;
463      - add error-counter to track errors (e.g., in "data.cpl") and to stop
464        cleanly in ATM/OCN_CHECK_CPLCONFIG;
465      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
466        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
467        before PACKAGES_READPARMS;
468      verification/cpl_aim+ocn/:
469      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
470        "data.cpl" for coupler (in input_cpl).
471    o eesupp/inc:
472      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
473        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
474        to always cumulate tile local-sum in the same order (still uses
475        MPI_Allreduce like standard code).
476      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
477        that are now identical to standard version (in eesupp/inc).
478    o pkg/shelfice:
479      - add SHELFICETransCoeffTFile for initializing spatially varying
480        heat and salt transfer coefficients
481    o pkg/atm_compon_interf & ocn_compon_interf:
482      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
483        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
484      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
485    o pkg/atm_ocn_coupler:
486      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
487    o pkg/rbcs:
488      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
489        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
490      - add a short report (to STDOUT) about RBCS-mask settings.
491    
492    checkpoint65p (2015/10/23)
493    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
494        there is no adjoint test for EVP, we don't know what it does to the adjoint
495        solution, but at least there are no more recomputation warnings left
496    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
497        a chance of giving the same results as a fully converged VP (JFNK) solver
498    o tools/adjoint_options/adjoint_diva:
499      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
500    o pkg/streamice:
501      - spotted bug in streamice_driving_stress using dyG where should have been dxG
502    o pkg/exf:
503      - remove STOP statement that prevented to use wind or (wind-)stress
504        interpolation for constant-in-time forcing fields (wind/stress period = 0).
505    o pkg/seaice:
506      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
507        5 additionals 2D fields and 6 new store directives
508      - change logic in seaice_readparms.F: EVP code can now be turned on in
509        various ways, setting SEAICE_deltaTev is no longer required,
510        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
511        or SEAICEaEVPcoeff
512    o pkg/shelfice/shelfice_thermodynamics.F
513      - redefining uLoc/vLoc to u/v, instead of 2u/v
514    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
515      - this is an intermediate state of a truely converging EVP that has
516        the potential of outperforming implicit VP methods, I do not recommend
517        using it yet.
518      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
519        and all parameters are hardwired
520      - for convergence it still requires very smooth regularisations, that means,
521        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
522        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
523        specific averaging appears to be required, still subject to tuning
524      - still needs cleaning and I need to turn parameter into runtime parameters
525      - add code to compute and print residuals of iteration, compile with
526        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
527    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
528      that entered with r1.54 on Sep04, 2015, -> update results
529    
530    checkpoint65o (2015/09/14)
531    o pkg/mom_vecinv & mom_common:
532      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
533        called from there.
534      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
535        allows to use Vector-Invariant form in deep atmos and anelastic formulation
536    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
537      and Koenig-Beatty+Holland (2012)
538      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
539      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
540      - requires an extra input argument for S/R seaice_calc_viscosities
541      - tensileStrength's depth dependence is different from Itkin et al. (2015)
542        (to be changed and played with, for now exponential)
543    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
544      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
545        by AREA according to Connelly et al. (2004), JPO.
546      - For EVP and the LSR solver, the implicit part of the drag term is
547        the only non-zero term in the denominator when there is no ice (which
548        prevented running the model with zero ice-ocean drag). If
549        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
550        (or zero main diagonals BU/BV) which need to be caught. A practical
551        consequence is that for open water, the momentum equation reduce
552        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
553        they happen to be zero, often leading to a non-zero solution over
554        open water.
555    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
556        efficient EVP method.
557      - introduce area-weighted averages for e12 (analogously to
558        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
559        remain, but also changing the order of terms in the previous average
560        changed the results as much) -> update experiment
561      - add SEAICE_DELTA_SMOOTHREG code
562      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
563        TEM-code
564      - adjust loop bounds so that only required fields are computed
565      - add new averaging code for zetaZ/deltaZ (again similar to
566        seaice_calc_viscosities.F), inactive by default for now (will change
567        results again), but will replace old code eventually
568    o eesupp/src:
569      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
570        to always cumulate tile local-sum in the same order
571        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
572        Still uses MPI_Allreduce (like standard code) but on array of tiles
573        and should be faster than GLOBAL_SUM_SEND_RECV code.
574      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
575        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
576      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
577         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
578         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
579         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
580         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
581    
582    checkpoint65n (2015/07/29)
583    o pkg/thsice:
584      - add a warning when used with pkg/aim but without updating SST
585        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
586    o pkg/offline:
587      - change where Offline-Fields are loaded, from load_fields_driver.F to
588        directly within FORWARD_STEP, just after updating iter number and time;
589      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
590        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
591       These changes allow:
592        a) to recover exactly on-line results using deltaToffline=deltaTClock,
593        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
594        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
595        time-step, both with GM & KPP files and with recomputing these fields;
596        b) no needs to switch on staggerTimeStep anymore;
597        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
598      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
599    o pkg/offline:
600      - change (rarely used) offset-iteration parameter to an offset time (in s):
601        can easily recover previous offset-iter effect by setting offset-time
602        (offlineTimeOffset) to offset-iter x deltaToffline;
603      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
604        in KPP as part of surface buoyancy forcing) in offline run.
605      - fix ptracers KPP non-local term in the case where KPP is re-computed.
606    o OpenAD
607      - Adding preliminary ggl90 test to OpenAD verification.
608        Config. with ggl90 currently diverges after 64 time steps
609        so will need more work to become more stable
610      - Adding preliminary kpp test to OpenAD verification.
611        required small tweakes in kpp_routines.F
612      - Merge and update from Krishna Narayanan's contrib area:
613        * Add one variable for preliminary OpenAD DIVA
614        * Add replacement time-stepping for OpenAD DIVA
615        * genmake2 flag -diva (but only for OpenAD; preliminary)
616        * required modifs for OAD_support
617        successful preliminary test for tutorial_global_oce_biogeo/
618    o pkg/seaice:
619      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
620      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
621        delta with a smooth function in s/r seaice_calc_viscosity
622        (no effect on EVP)
623      - rename local suffix "sqr" into "sq" for more consistent variable names
624    o pkg/seaice:
625        add new parameter SEAICE_deltaMin that is used ***only***
626        for regularizing Delta (and nothing else, like the parameter
627        which is also used for all sorts of things SEAICE_EPS).
628        Defaults to SEAICE_EPS for backward compatibility only.
629    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
630        the wrong key by inialising it before use -> fixes a recomputation
631        problem but does not fix the gradient
632    o pkg/layers:
633      - move resetting of flux arrays to outside the iLa loop
634        (this caused layers_diapycnal to not work with more than one layer coord.)
635      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
636    o pkg/layers:
637      - remove from common block 3D layers fields (used to diagnose transport
638        in tracer coords) and declare them as local arrays in layers_calc.F
639    o pkg/seaice:
640      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
641        in lab_sea forward experiment (changes results -> updated)
642      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
643    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
644       computations; for SEAICE_VECTORIZE_LSR
645      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
646        sweep to the outside,
647      - remove store directives and add "CADJ loop sequential" directives
648        in analogy to model/src/solve_tridiagonal.F
649      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
650        boundaries to yield more readable code. This has also the charming side
651        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
652        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
653        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
654        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
655        an additional option)
656       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
657       but the adjoint gradients (which are affected by this change) still explode.
658    o coupler (atm & ocn _compon_interf):
659      - avoid using Exch2 IO mapping if not suitable.
660    
661    checkpoint65m (2015/06/15)
662    o pkg/layers:
663      - clean-up old parameters setting (from Sep 2012):
664        + remove old parameters setting from common block (declared locally);
665        + stop if any old parameter is mixed with new parameters;
666        + check for valid or consistent parameter setting (e.g., layers_name)
667      - check that layers_bounds for Pot.Density are in the right range;
668        this is supposed to catch un-updated setting after recently shifting
669        potential density field "prho" by -1000 (now in "sigma" scale).
670    o pkg/layers:
671      - Added missing call to layers_fill for keeping track of tottend in
672        pkg/diagnostics/diagnostics_fill_state.F
673    o pkg/layers:
674      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
675        of diapycnal fluxes
676    o pkg/layers:
677      - reverted changes to interpolation to previous treatment; there
678        was never actually a problem
679    o pkg/layers:
680      - fix interpolation of layers tracers in the presence of partial cells
681      - add lots of new functionality to compute water mass transformation
682        (enabled by CPP flag LAYERS_THERMODYNAMICS)
683      - add new calls from main code (diags_oceanic_surf_flux.F,
684        thermodynamics.F, impldiff.F) and gad to save the necessary fields
685        for layers_thermodynamics calculations
686    o pkg/ptracers:
687      - add capability of stepping a passive tracer forward without advection
688        by setting PTRACERS_advScheme to 0.
689    o pkg/diagnostics:
690      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
691    o pkg/layers:
692      - shift potential density field "prho" by -1000 for density layer averaging so
693        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
694        Note that density bin boundaries (layers_bounds in data.layers) have
695        to be set accordingly (i.e., shifted, in sigma scale).
696    o pkg/layers:
697      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
698      - fix calculation of layer non-weighted velocity and layer probability
699      - add diagnostics for pot.density used for layer averaging
700    o pkg/seaice:
701      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
702        positiveness, modify a few comments and improve variable names,
703      - the changed computation of deltaC affects most seaice-related
704        experiments at the truncation level.
705        seaice_itd.thermo is affected by far the most, with
706        only 7 digits of agreement remaining; update experiments.
707    
708    checkpoint65l (2015/05/04)
709    o pkg/shelfice:
710      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
711        factor drKp1 to zero where it is negative (ie. do not use
712        SHELFICEBoundaryLayer if hFacC>1)
713      - the same for factor drLoc in shelfice_forcing.F
714    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
715        with modules in ptracers, when using testreport option "-small_f"
716    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
717      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
718    o verification/testreport
719      - add new option -small_f
720        with this option testreport first makes the target small_f (*.f files)
721        before running make (all). This is useful for explicit inlining when
722        all sources need to be full available.
723    o pkg/exf/exf_interp.F:
724        remove previous changes related to reverse (decreasing) input grids latitude
725    
726    checkpoint65k (2015/04/01)
727    o pkg/ecco:
728        fix missing cosphi initialization; use eccoiter in place of optimcycle;
729        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
730        instead of active read/write
731    o pkg/ctrl:
732        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
733        instead of active read/write.
734    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
735        return if .NOT.useAUTODIFF
736    o pkg/seaice: add CPP brackets (cost function related).
737    o model/src:
738        add useAUTODIFF run time switch.
739    o pkg/exf/exf_interp.F:
740        add code to allow input grids with latitude starting in the north (i.e. when
741        j=1 corresponds to northern edge of field); modify global_with_exf to test
742        this feature.
743    o verification/testreport:
744      - replace "grep -A3" with POSIX conformal sed command, because there are
745        implementations of grep that cannot do contextual searches
746      - replace "cat -n" by "nl" (two occurrences), because not all implementations
747        of "cat" have the option "-n"
748    o model/src:
749        add new file gsw_teos10.F that contains 3 functions, more or less a copy
750        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
751        convert from conservative to potential temperature. For now they are not
752        called anywhere.
753    o pkg/ggl90: make "useIDEMIX" useful
754      - re-organize code in s/r ggl90_calc a little to move computations that
755        are different for idemix into separate loops (changes verification
756        experiment idemix at truncation level, 12 digits remain -> updated)
757      - requires 2 new 2D fields KappaM, verticalShear
758      - make hFacI and recip_hFacI local 3D variables that are passed to
759        s/r ggl90_idemix
760      - fix and improve some comments
761    
762    checkpoint65j (2015/02/25)
763    o pkg/openad
764      - synchronize seawater.F with version in model/src: replace routine
765        body of sw_temp by calling sw_ptmp and fix/add a few comments.
766    o pkg/mnc:
767      - change default value of pickup_read/write_mnc params to FALSE
768        (since few features are missing in reading MNC pickup files).
769    o model/src:
770      - change default (background) vertical diffusivity for salt to be the
771        temperature (background) vertical diffusivity.
772      - change background vertical diffusivity in vertical mixing pkgs ggl90,
773        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
774        This makes ptracers default diffusivity (that uses salt diffKr) more
775        consistent with vertical mixing schemes.
776    o verification/testreport:
777      - fix typo in "-pcls" option ;
778      - put temp files in /tmp (instead of in local dir)
779      - add option "-ncad" to use genmake2 new option "-nocat4ad"
780      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
781    o pkg/ggl90 (idemix code):
782      - apply few fixes ; add some missing "_d 0" ; update output of exp.
783        global_ocean.90x40x15.idemix
784    o OpenAD
785      - enable active file I/O and begin removal of work-around code
786        for OpenAD for handling control variables (memory vs. active files)
787      - new CPP options file OPENAD_OPTIONS.h
788      - revert to genarr2d gradient check for hs94.1x64x5
789      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
790      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
791    o tools/genmake2:
792      - add option for an alternative Makefile (from Martin) where multiple
793        source files are sent to TAF (instead of all in one file).
794    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
795      - code provided by Carsten Eden as an extension of ggl90
796      - so far the code is turned on within ggl90 by setting a CPP-flag at
797        compile time; a runtime flag implementation is not yet complete
798      - tested in new verification experiment global_ocean.90x40x15.idemix
799    o verification:
800      - reduce length of the AD test run by half for experiments
801        global_ocean.cs32x15 (std + thsice) and isomip
802      - enable active file I/O for OpenAD, adjust verifications accordingly
803      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
804    o verification/testreport:
805      - fix two non-POSIX sed statements so that there are no error messages
806        on Mac OS X
807      - replace hostname -s with hostname | sed 's/\..*$//'
808    o model/src/seawater.F:
809      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
810        (following the matlab code), which would have avoided the bug caught
811        by Matt (see below) in the first place
812    o pkg/shelfice:
813      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
814        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
815      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
816        ice-shelf case (i.e., within surface level).
817      - add config summary in shelfice_check.F
818      - remove global variable recip_SHELFICElatentHeat and replace by a local
819        variable recip_latentHeat
820      - introduce diagnostics for friction velocity uStar (in case of
821        SHELFICEuseGammaFrict)
822      - change verification experiment isomip.htd:
823        + start from pickup (as input_ad at nIter0=8640)
824        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
825        + test SHELFICEuseGammaFrict = .TRUE.
826        + test SHELFICEadvDiffHeatFlux = .TRUE.
827    o model/src:
828      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
829        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
830        update output of experiments global_with_exf.yearly and isomip (all 6).
831    o pkg/shelfice:
832      - change setting of kTopC to also be zero where there is no ice-shelf.
833      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
834        ice-shelf is.
835      - first attempt to get RealFreshWaterFlux effects: for now, only without
836        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
837    o pkg/seaice: add the option to prescribe a fixed thickness PDF
838      for thermodynamic calculations
839      - because of divisions of the type 7/7 not exactly equal to 1, this change
840        affects results of some verification experiments by up to 4 digits:
841        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
842        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
843        adjoint: lab_sea, lab_sea.noseaicedyn
844        -> updated
845    
846    checkpoint65i (2015/01/23)
847    o model/src:
848      - change units of frictionHeating field from W to W/m^2
849      - fix bug in frictional heating from stratospheric drag in
850        S/R ATM_PHYS_TENDENCY_APPLY_V
851      - with synchronous time-stepping: move resetting to zero of frictionHeating
852        field from load_fields_driver.F to thermodynamics.F ;
853      - add diagnostics for frictional heating.
854    o model/src & gmredi K3D:
855      - add frictionHeating field to pickup-files (for synchronous time-stepping)
856      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
857      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
858        and name in pickup file).
859      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
860    o model/src:
861      - move (from ini_forcing.F) initialisation of all arrays in header file
862        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
863        (since Nov 2012) with option selectAddFluid=1.
864    o pkg/shelfice:
865      - change units (+ document) of newly added field "shelfIceMassDynTendency"
866      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
867    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
868    o pkg/seaice: two new runtime parameters:
869      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
870        long overdue
871      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
872        parameterization of tensil stress for fast ice (does not do anything yet)
873    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
874        for LSR: move checking overlaps out of JFNK-if-block
875    o pkg/atm_phys:
876      - move copy of grid and dynamical fields out of atm_phys_driver.F into
877        new S/R ATM_PHYS_DYN2PHYS.
878      - fix level height for Linear Free-Surf case (to be consistent with
879        fixed-in-time pressure levels).
880    o pkg/mom_common (bottomdrag):
881      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
882        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
883        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
884    o pkg/shelfice (u/v_drag):
885      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
886      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
887        (now similar to shelfice_u_drag.F)
888      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
889        from mom_vecinv.F (similar to mom_fluxform calls).
890    o pkg/mom_common (bottomdrag):
891      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
892      - add options for alternative discretisation of velocity norm in quadratic
893        bottom drag: averaging of grid-cell-center KE to U.point and V.point
894        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
895        improves when averaging only the other component (e.g. vVel for U bottom
896        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
897      - add options (bottomVisc_pCell) to account for partial-cell in bottom
898        friction (no-slip BC) thus getting the true distance from the bottom;
899        off by default since this also reduces model stability (explicit bottom
900        friction). Changes produce different machine truncation with linear-drag
901        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
902        front_relax (bvp & mxl, 10 & 11 digits).
903    o model/src & mom pkgs:
904      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
905        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
906      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
907        just copy level Nr value to level Nr+1.
908    o doc:
909      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
910    o pkg/shelfice:
911      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
912        SHELFICE.h: move array shelficemass to init_varia, initialise
913        from array shelficemassinit, which is set in init_fixed and
914        has option to be set from file; introduce array
915        shelficeMassDynTend array, set thru file in init_fixed
916      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
917        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
918        pkg/streamice
919      - shelfice_thermodynamics.F: call shelfice_step_icemass if
920        SHELFICEMassStepping = .true.
921      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
922    
923    checkpoint65h (2014/12/17)
924    o verification/global_ocean.90x40x15, global_ocean_ebm:
925      - update to generic controls.
926    o pkg/ctrl:
927      - ctrl_map_ini_genarr.F: test for igen>0
928      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
929      - move gentim2d part of ctrl_map_ini_genarr.F to
930        new separate routine : ctrl_map_ini_gentim2d.F
931      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
932        add time variable weights and cyclic controls (time mean,
933        seasonal cycle, etc) capabilities to gentim2d
934    o pkg/ecco:
935      - move reading of error, conversion to weights from
936        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
937    o global_oce_llc90, cs32:
938      - activte sbo.
939      - CTRL_SIZE.h : add maxCtrlProc.
940      - activate the new genctrl capabilities.
941      - update following reorganization of global_oce_input_fields.tar.gz  
942    o pkg/ctrl/ctrl_ad_diff.list:
943      - add missing ctrl_init_rec.f
944    o tools/OAD_support/keepOriginal:
945      - add ctrl_init_rec.F
946    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
947      - avoid recomputations of xx_gentim2d_dummy.
948    o momentum diagnostics:
949      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
950        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
951    o pkg/seaice/seaice_lsr.F:
952      - fix computation of BU/BV, make sure they are non-zero, only necessary
953        for cubed sphere exchanges and SEAICE_OLx/y>0.
954        This makes calling s/r fill_cs_corner_rl obsolete (removed).
955    o verification/global_ocean.cs32x15/input.seaice
956      - add test for strong implicit coupling and restricted addtive Schwarz
957        methods for LSR
958      - update results/output.seaice.txt
959    o verification/tutorial_global_oce_biogeo:
960      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
961        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
962        update output_adm,_oadm,_tlm.txt
963    o pkg/dic:
964      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
965      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
966        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
967    o verification/tutorial_global_oce_biogeo:
968      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
969        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
970        update output_adm,_oadm,_tlm.txt
971    o eesupp/src:
972      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
973        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
974    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
975      LSR (following Hutchings et al. 2004)
976      - introduce zetaZ as a global variable (requires adjustments in
977        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
978        in seaice_calc_viscosities.F
979      - new flag SEAICEuseStrImpCpl (default off)
980      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
981        momentum equations
982      - JFNK-solver (preconditioner) adjusted to allow using this method
983        (where it does not have any positive effect)
984    o pkg/seaice
985      - add overlap for restrictive additive Schwartz method also to LSR, but
986        turn it off by default (because it only seems to work for non-cubed
987        sphere/llc topologies)
988    o pkg/autodiff
989      - add extra exchanges in addummy_in_steppging also for mnc output
990    o pkg/seaice:
991      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
992        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
993    o pkg/obcs:
994      - add option to specify domain-connected piece Id along OB though files
995        (for now, only used to diagnose PhiVel; default =1 -> global correction)
996      - modify obcs_diag_balance.F to process each connected-part separately;
997        exclude OB where Id = 0 but keep the full divergence there (-> constant
998        Psi along this portion of OB and all inflow derived from grad(Phi))
999      - add example of OB-conect files in verification/so_box_biogeo/input.
1000    o pkg/diagnostics:
1001      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
1002      a) use non zero matrix element across OB and solve for Phi 1 grid point
1003         outside OB (i.e, where tracer OBCS are applied).
1004      b) global imbalance of inFlow/outFlow across OB: instead of modifying
1005         velocity across OB, spread it uniformly along the OB in the RHS.
1006    
1007    checkpoint65g (2014/11/19)
1008    o pkg/diagnostcis:
1009      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
1010    o pkg/my82,pp81,kl10:
1011      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
1012        field diffKr as background diffusivity to set minimum diffusivity value.
1013    o pkg/seaice:
1014      - add new parameter SEAICEuseEVPrev (for revisited EVP by
1015        Bouillon et al 2013)
1016      - add SEAICE_evpAlpha/Beta to namelist
1017      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
1018        involve trivial re-ordering of divisions/multiplications that should not
1019        have any effects, but ... they do change the results of lab_sea.hb87 so
1020        that only 2 digits of agreement remain, in line with the general
1021        instability/fragility of the evp-code. For now, I do not care and just
1022        update the verification experiment
1023    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
1024      - remove xx_genarr2d_numsmooth etc
1025      - use xx_genarr2d_preproc etc instead
1026      - carry out smooth_correl2D at initialization stage rather than during
1027        time stepping.
1028      - get smoothOpNb from xx_gentim2d_preproc
1029    o global_oce_cs32 :
1030      - add test of generic ecco capabilities.
1031    o pkg/exf/exf_getsurfacefluxes.F :
1032      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
1033    o pkg/ctrl,ecco :
1034      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
1035        is defined.
1036    o pkg/seaice: add diagnostics for Delta (deformation parameter)
1037    o model/src:
1038      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
1039        diffusivity (background) is specified but ignored.
1040    o verification:
1041      - in testreport, convert hostname to lower case for default output dir name
1042    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
1043    o pkg/dic: add modifications from Hajoon:
1044      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
1045      - light attenuation: add self-shading effect by climatological Chlorophyll
1046        (read from file).
1047    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
1048        compiles when SEAICE_ALLOW_DYNAMICS is undefined
1049    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
1050        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
1051        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
1052        approach where CPP_OPTIONS.h includes an omnipotent
1053        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
1054    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
1055        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
1056    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
1057        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
1058        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
1059    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
1060      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
1061      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
1062      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
1063      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
1064    o pkg/ctrl,ecco,exf :
1065      - remove variables associated with NON-generic costs,
1066        unless ECCO_CTRL_DEPRECATED is defined.
1067      - remove NON-generic NON-obcs controls,
1068        unless ECCO_CTRL_DEPRECATED is defined.
1069    o pkg/ctrl : added ctrl_local_params.h
1070    o pkg/ecco : added ecco_local_params.h
1071    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
1072        experiments, which will progressively be removed once the
1073        experiments are revised to use only generic controls/costs.
1074    
1075    checkpoint65f (2014/10/13)
1076    o pkg/ctrl, ecco, seaice : minor changes in headers
1077    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
1078        cost function and control capabilities added since checkpoint65c.
1079    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
1080    o pkg/ecco: increase modularity and improve logic
1081      - ecco_toolbox.F (new) : basic operations that are often used,
1082        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
1083        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
1084      - cost_gencal.F (new) : determine filnames and records.
1085      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
1086      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
1087        and exploit the above functions leading to more compact code.
1088      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
1089      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
1090        using_ers, using_gfo, using_mdt is now only defined within gencost)
1091    o pkg/ecco: extend generic cost capabilities
1092      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
1093        capabilities via gencost_preproc (+ _c,_i,_r related params),
1094        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
1095        gencost_outputlevel arguments to cost_generic
1096      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
1097        and active_read, making room for gencost_preproc to take effect.
1098        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
1099      - pkg/ecco/cost_generic.F :
1100        compute and store misfit maks*(model-data) in localdif that is
1101        then used in cost and for output, output misfit if outlev.GT.0
1102      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
1103        rather gencost_barfile for deciding whether to write barfile
1104      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
1105      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
1106        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
1107      - pkg/ecco/ecco_summary.F : report gencost variables
1108      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
1109    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
1110    o pkg/ecco: internal re-organization
1111      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
1112        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
1113        mv relevant variables definition from ecco_cost.h to ecco.h,
1114        make sure gencost routines only include ecco.h)
1115      - throughout : add missing CCP switches, rm unused variables,
1116        and rm un-necessary CPP switches
1117      - throughout gencost routines : replace modelstartdate with
1118        gencost_startdate when needed
1119      - cost_bp_read.F : use arguments, instead of common blocs
1120        so that it can be used also by (new) cost_gencost_bpv4.F
1121      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1122      - ecco_phys.F : compute etanFull
1123      - ecco_readparms.F : rename using_topex as using_tpj, add
1124        bpv4-grace to gencost list, initialize added parameters
1125      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
1126    
1127    checkpoint65e (2014/09/28)
1128    o pkg/obcs:
1129      - replaced the just-added CPP options with run-time variables
1130        (see pkg/obcs/OBCS_PARAMS.h for details)
1131    o pkg/obcs:
1132      - add additional CPP options for sponge boundary layers
1133        (see pkg/obcs/OBCS_OPTIONS.h for details)
1134    o pkg/atm_phys:
1135      - implement simple (obliquity only, assuming circular planet orbit)
1136        seasonal cycle for incoming insolation ; used when run-time parameter
1137        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1138    o pkg/exf, pkg/ecco, pkg/ctrl:
1139      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1140      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1141      - implement gentim2d for xx_tauu, xx_tauv
1142    o pkg/ctrl, pkg/ecco :
1143      - fix and complement the generic controls implementation
1144    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1145        pkg/shelfice/shelfice_thermodynamics.F,
1146        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1147        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1148      - add weight in CTRL_GET_GEN calls
1149    o pkg/ctrl :
1150      - ctrl_get_gen.F : add weight as input parameter, and apply
1151        it directly rather than using smooth_correl2Dw (to be retired).
1152      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1153    o pkg/ctrl :
1154      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1155        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1156      - re-activate ctrl_summary (call in ctrl_init.F)
1157    o pkg/ctrl/ctrl_cost_gen.F :
1158      - fix CCP brackets, remove un-necessary myiter, mytime
1159    o pkg/ecco, pkg/ctrl :
1160      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1161      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1162      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1163      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1164    
1165    checkpoint65d (2014/09/15)
1166    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1167      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1168        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1169    o pkg/ctrl/ctrl_map_ini_genarr.F :
1170      - remove compilation failure
1171      - replace hard coded example
1172      - use ctrl_map_ini_gen2D, 3D
1173    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1174      - on/off switch based upon xx_genarr2d_weight,3d
1175    o src/packages_init_variables.F :
1176      - regroup pkg/estimation calls
1177      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1178        (moved to ctrl_init_variables)
1179    o cost/cost_init_varia.F :
1180      - remove ecco_cost_init_varia
1181        (moved to ecco_init_varia)
1182    o ctrl/ctrl_init_variables.F :
1183      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1184      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1185    o ctrl/ctrl_map_ini.F :
1186      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1187        (moved to ctrl_init_variables)
1188    o ctrl/ctrl_map_ini_ecco.F :
1189      - remove ECCO_PHYS (mv to ecco_init_varia)
1190      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1191    o ecco/ecco_ad_diff.list :
1192      - add ecco_init_varia.f
1193    o ecco/ecco_init_varia.F
1194      - new routine
1195    o pkg/streamice:
1196      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1197        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1198      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1199    o pkg/generic_advdiff:
1200      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1201    o pkg/exf:
1202      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1203         xxg_precip capability
1204      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1205    o pkg/ctrl:
1206      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1207    o model/src/load_fields_driver.F :
1208      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1209        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1210    o OpenAD verification experiments:
1211      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1212        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1213        for now, only in pkgs used in OpenAD verification experiments.
1214      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1215        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1216        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1217        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1218    o OpenAD verification tests:
1219      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1220      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1221        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1222      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1223        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1224    o model/src & generic_advdiff:
1225      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1226        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1227        dynamics requires valid tracer forcing only over tile interior but, for
1228        some diagnostics, may need to extend it over 1 point in tile halo region.
1229      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1230        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1231        setting in temp/salt/ptracer_integrate.F
1232    o pkg/dic:
1233      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1234        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1235        in gchem_forcing_sep.F
1236    o pkg/autodiff & obcs:
1237      - add storage of current OB values for U & V (was already done for T & S).
1238    
1239    checkpoint65c (2014/08/30)
1240    o pkg/dic:
1241      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1242        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1243        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1244    o verification:
1245      - new experiment testing OBCS and DIC pkgs, using params & output from
1246        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1247        passage: take OBCS from the last year of a 2 yrs simulation and initial
1248        conditions from t=1.yr while keeping the same forcing.
1249    o model/src:
1250      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1251        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1252    o pkg/diagnostics (Stats-Diags):
1253      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1254        a) refine region where stats are computed, excluding where arrhFac=0 ;
1255        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1256        c) extend regional stats over the region edges (for U or V pt location).
1257    o pkg/gchem:
1258      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1259        pkg/dic is currently changing/updating ptracers values beyond the OB).
1260    o verification (hs94):
1261      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1262        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1263        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1264        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1265    o pkg/ptracers:
1266      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1267        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1268      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1269        with AB-2 code (so that it get tested).
1270    o model/src:
1271      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1272        with AB-2 code (previously only available with AB-3 code).
1273        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1274        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1275        there, by calling CYCLE_AB_TRACER).
1276    o pkg/generic_advdiff:
1277      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1278        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1279        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1280        S/R temp/salt/ptracers_integrate.F
1281    o model/src & pkg/ptracers:
1282      - remove common block variables gT,gS (in DYNVARS.h), except when
1283         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1284      - remove common block variable gPtr.
1285    o model/src & pkgs:
1286      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1287         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1288         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1289         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1290      + change accordingly all calling S/R.
1291      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1292        in S/R temp/salt/ptracers_integrate.F
1293    o pkg/seaice:
1294      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1295        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1296      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1297        in seaice_lsr
1298      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1299        in s/r seaice_lsr_calc_coeffs
1300    o pkg/mdsio:
1301      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1302        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1303        too long (e.g., > MAX_LEN_FNAM/2 )
1304    
1305    checkpoint65b (2014/08/12)
1306    o pkg/matrix:
1307      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1308    o model/src:
1309      - fix initialisation of geothermalFile; compile geothermal-flux code in
1310        natl_box verification experiment.
1311    o model/src & pkg/down_slope:
1312      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1313      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1314        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1315        results at machine truncation level: update output of experiments
1316        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1317    o pkg/diagnostics (Stats-Diags):
1318      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1319        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1320        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1321        times (but Min,Max and StD are still wrong).
1322    o model/src:
1323      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1324        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1325    o model/src:
1326      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1327        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1328        arrays are already updated while adjustments (filters, conv.adjustment) are
1329        still applied later, in S/R TRACERS_CORRECTION_STEP.
1330    o model/src:
1331      - store in common bloc array "rhoInSitu" the virtual potential temperature
1332        anomaly that is used to compute geopotential: this make the atmos code
1333        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1334    o pkg/seaice/seaice_lsr.F
1335      - rename integer variable ilcall to ipass (that's what it is called
1336        in the residual diagnostics
1337      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1338        default) for improved non-linear convergence of the first few steps
1339      - adjust a few comments and add new ones to explain some of the store
1340        directives
1341    o pkg/generic_advdiff (& ptracers):
1342      - re-work the code to check for valid advection scheme and for minimum
1343        size of overlap (now stored in local common bloc in gad_advscheme.F)
1344    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1345      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1346      - add an auxilliary variable "bet" and fix store directives and keys in
1347        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1348        less exact gradients in my tests); but there are still
1349        recomputation warning (although gradients are sort of OK), when
1350        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1351        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1352      - update verification experiments lab_sea.
1353      - change some comments in S/R seaice_calc_viscosities
1354    o model/src:
1355      - if staggerTimeStep=T, always apply exchange to velocity field in
1356        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1357        (independent of using multi-dim advection or not); no effect on FWD run
1358        but affects AD results (at machine truncation level): update output of
1359        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1360        and isomip (oad: 12.d).
1361    o pkg/generic_advdiff:
1362      - stop if doAB_onGtGs is set to FALSE but ignored
1363      - refine warning related to stability of tracer time-stepping
1364        regarding internal wave dynamics.
1365      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1366        on staggerTimeStep & implicitIntGravWave (will now get a warning
1367        if potentially unstable).
1368    o pkg/kl10:
1369      - add new pkg "kl10" for mixing due to internal wave breaking, from
1370        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1371        (contribution from Jody Klymak), tested in verification experiment
1372        verification/internal_wave/input.kl10/
1373    o isomip experiment:
1374      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1375        (input.htd) and update the output.
1376    o cd_code experiments:
1377      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1378        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1379        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1380        update the corresponding output.
1381    o pkg/seaice:
1382      - reduce the number of include files and store directives in
1383        S/R seaice_lsr_tridiagu/v
1384      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1385        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1386        get rid off one store directive (a TAF bug?)
1387      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1388        S/R seaice_lsr_tridiagv to change the loop range for consistency
1389      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1390      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1391        S/R seaice_lsr_tridiagu/v (requires update of
1392        offline_exf_seaice/input.dyn_jfnk)
1393    
1394    checkpoint65a (2014/07/27)
1395    o model/src:
1396      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1397        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1398        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1399        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1400    o model/src:
1401      - collect momentum forcing tendency into local 2-D array (passed as argument
1402        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1403        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1404        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1405      - collect T & S forcing tendency into local 2-D array (passed as argument to
1406        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1407        affects results at machine truncation level (e.g., ocean: if using
1408        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1409        correction due to vertical advection).
1410      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1411        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1412        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1413        obcs_ctrl (ad & fwd grd @ 12 & 7).
1414    o pkg/ptracers & diagnostics:
1415      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1416        title (to avoid some unexpected truncation); sort out ptracers diags units.
1417      - collect ptracer forcing tendency into local 2-D array (passed as argument
1418        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1419    
1420    checkpoint65 (2014/07/18)
1421    o pkg/fizhi:
1422      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1423        affects results at machine truncation level. Update output of experiments
1424        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1425    o pkg/seaice: more clean up
1426      - rename TAF common block tapes to be more consistent and remove
1427        unnecessary duplicates
1428      - add store directives to remove more recomputations, but use smaller
1429        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1430        The idea behind this flag is to reduce the memory footprint when the
1431        adjoint of the LSR is not required. As of now, defining the flag
1432        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1433        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1434        For experiment offline_exf_seaice, this means on a linux box with gfortran
1435        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1436        this experiment):
1437        > size mitgcmuv_ad
1438        text    data        bss     dec        hex
1439        5100659 1216  220458952  225560827  d71c8fb
1440        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1441        but only a moderate increase of 36% for global_ocean.cs32x15:
1442        text    data        bss     dec        hex
1443        6695027 1648 1014578664 1021275339 3cdf6ccb
1444        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1445      - note: there are still recomputations in global_ocean.cs32x15 and
1446        offline_exf_seaice and the gradient agreement changes (gets a
1447        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1448      - in general, the AD gradients still are wrong
1449    o OpenAD
1450      - clean up code_oad/ directories somewhat by moving files
1451        dontCompile, dontTransform, keepOriginal to OAD_support/
1452    o model/src:
1453      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1454        (not currently tested): add dissipation terms before NLFS rescaling of
1455        tendencies (previously done after).
1456    o pkg/diagnostics:
1457      - write stats-diags in ascii file with more digits (same as in monitor).
1458    o pkg/down_slope:
1459      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1460        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1461    o model/src:
1462      - new file "apply_forcing.F" containing all the code previously in
1463        external_forcing.F, but with new argument list: pass, as new argument,
1464        the current level tendency array to update (instead of a direct update
1465        of the common bloc array). Change the corresponding calls.
1466      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1467        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1468    o pkg/seaice/seaice_lsr, a little bit of clean up
1469      - rearrange some code blocks, so that now all calculations for
1470        setting up the right-hand-sides done within one single block
1471        (I find that easier to read and understand)
1472      - rearrange freedrift-code to reduce the number of ifdefs
1473      - adjust some indentations and comments
1474    
1475    checkpoint64z (2014/07/10)
1476    o model/src and several pkgs:
1477      - change argument list of all S/R called from external_forcing.F and
1478        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1479        to pass, as argument, the current level tendency array to update
1480        (instead of a direct update of the common bloc array).
1481      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1482      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1483    o pkg/seaice/seaice_lsr.F
1484      - always initialize local arrays in seaice_lsr_tridiagu/v
1485      - add more local tapes to seaice_lsr_tridiagu/v
1486      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1487        keep it in bi/bj loop; this seems to be essential
1488      - gradients are still wrong but only by 4-7 orders of magnitude
1489        instead of 15 orders of magnitude, lab_sea improves a little
1490    o pkg/seaice
1491      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1492        generates unnecessary code in seaice_lsr_ad
1493      - add more store directives in seaice_lsr to avoid unnecessary code
1494        in seaice_lsr_ad
1495      - exclude some residual computations in seaice_lsr when
1496        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1497        in seaice_lsr_ad
1498      - add more storing, a new tape (model/src/the_main_loop.F) and
1499        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1500        and klockey should be checked by a specialist)
1501      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1502        and update lab_sea after previous changes in pkg/seaice below
1503    o pkg/autodiff:
1504      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1505        viscFacInAd : run time parameters allowing for adjoint switches
1506        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1507    o pkg/ecco:
1508      - introduce cost_gencost_boxmean.F that computes a box mean
1509        temperature (for use in adjoint sensitivity studies).
1510    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1511    o pkg/mom_common/mom_calc_visc.F:
1512      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1513    o pkg/seaice/seaice_summary.F:
1514      - statement for SEAICEadjMODE now in autodiff_readparms.F
1515    o pkg/seaice:
1516      - remove some store directives and add new ones in an effort to get
1517        finally rid off the recomputation warnings. This is successful
1518        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1519        defined (i.e. no extensive recomputation warnings left), but there
1520        are still too many recomputations on the solver iteration level
1521      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1522      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1523        SEAICE_SIZE.h
1524      - add a store directive in S/R seaice_calc_viscosities
1525    o pkg/seaice (ITD code):
1526      - fix definition of Hlimit for multi-threaded case
1527      - use double precision arithmetic to compute Hlimit: this affects results;
1528        update output of experiment seaice_itd.
1529    o replace content of verification/seaice_itd
1530      - instead of a 1D column use the configuration of offline_exf_seaice
1531        to test the ice thickness distribution code with ridging
1532      - this is a first shot at this experiment
1533      - change of some defaults of ridging parameters SEAICEhStar (from
1534        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1535        and lot of new comments.
1536    
1537    checkpoint64y (2014/06/20)
1538    o pkg/seaice/seaice_reg_ridge.F:
1539      - modify the regularization of very small volumes of ice; only check
1540        total volume HEFF, and do not apply correction to individual ice
1541        classes because that leads to funny patterns in the heat and fw-fluxes
1542        into the ocean. Adjust seaice_itd/results/output.txt
1543      - replace nITD by SEAICE_multDim in loop-ranges
1544    o pkg/exf:
1545      - add code to process the case field period = -12. with UV interpolation.
1546      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1547        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1548    o verification/global_with_exf:
1549      - switch all fields period to -12. (was previously untested) in input/data.exf
1550        (but keep secondary test ".yearly" unchanged); update the reference output.
1551    o pkg/cal:
1552      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1553    o pkg/exf:
1554      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1555        to replace logical switch "exf_verbose"
1556      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1557    o pkg/sbo:
1558      - update from Katherine Quinn: evaluate mass directly from density and SSH
1559        (budget using Finite Volume method) instead of from bottom pressure.
1560      - allow testreport to collect few selected SBO output ; tested in exp.
1561        global_ocean.90x40x15 (after updating the results, to include SBO output).
1562      - fix some multi-threading issues (in output part).
1563    o model/src & most packages:
1564      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1565      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1566        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1567        "data.{pkg}" exist ; and leave the S/R (return) just after.
1568      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1569        + call LAND_READPARMS from packages_readparms.F
1570    o pkg/seaice:
1571      - remove code that resets useThSice in S/R seaice_readparms and
1572        replace it by a warning in S/R seaice_check
1573      - remove parameter MULTDIM, replace with nITD and runtime
1574        parameter SEAICE_multDim (still hard-wired to nITD if
1575        SEAICE_ITD is defined)
1576    
1577    checkpoint64x (2014/05/24)
1578    o verification/lab_sea:
1579      - update adjoint and TLM output following changes to pkg/salt_plume
1580      - un-do the update after putting back local recip_Cp in few places.
1581    o pkg/salt_plume: modifications by An Nguyen:
1582      - add capability to do brine rejection (salt-plume) as function of
1583        volume+tracers (instead of only salinity tracer).
1584      - conserve volume by exchanging volume from each kLev to above to
1585        accommodate in-coming brine volume
1586      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1587      - switch KPP surf buoyancy due to brine forcing to 3-d
1588        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1589      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1590      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1591        in East/West Arctic.
1592    o pkg/sbo:
1593      - incorporate modifications from Katherine Quinn to enable the use of sbo
1594        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1595        output for future testreport verification (unfinished).
1596    o pkg/atm_phys:
1597      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1598        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1599        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1600    o pkg/seaice
1601      seaice_calc_ice_strength.F: modify expression to avoid divisions
1602        (affects truncation)
1603      seaice_do_ridging.F: clean up the insectarium
1604      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1605      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1606      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1607      - add some debugging information and error messages (warnings)
1608    o model/src: modifications relatd to atmosphere p*:
1609      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1610      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1611        of vertical profile tRef in geopotential background and anomaly.
1612      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1613        and pkg/atm_phys.
1614      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1615        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1616    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1617    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1618        not used right now, but can be used in BGC packages to fix conservation.
1619    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1620        other packages too.
1621    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1622        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1623    o model/src:
1624      - since we have several heat capacity (even in model/src), define "recip_Cp"
1625        as local variable (no longer in common block) to avoid any confusion.
1626      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1627    o pkg/exf:
1628      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1629        air density as function of air Temp, Humidity and atm pressure.
1630    
1631    checkpoint64w (2014/05/02)
1632    o verification:
1633      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1634        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1635        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1636        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1637        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1638    o model/src: for atmosphere in p* coords:
1639      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1640      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1641        but not yet activated.
1642    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1643      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1644      - this changes the results (but not for any verification experiment, because
1645        none tests this), but avoids having an extra field in the restart files
1646    o pkg/seaice: remove global variable TICE (not needed)
1647      - replace by TICES or local variable where necessary (cost_seaice_test,
1648        seaice_diagnostics_state)
1649      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1650      - use specific read/write routines for reading and writing individual leves
1651        of a multilevel field
1652    o pkg/ctrl & model/inc:
1653      - move additional anomaly fields of control vars (related to options:
1654         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1655        from DYNVARS.h into new header file: CTRL_FIELDS.h
1656    o pkg/seaice: some small modifications to the ridging code
1657      - make fw2ObyRidge a global variable and add the freshwater flux to
1658        seaice_growth
1659      - pass actual thickness from seaice_prepare_ridging, so that it is
1660        computed only in one place and compute it in the same way as in
1661        seaice_growth
1662      - initialise more fields in seaice_do_ridging that where cause floating
1663        point exceptions over land
1664    o pkg/seaice: preparations for ridging code and first real ridging code
1665      - move most of "PART 1" of S/R seaice_growth into a new and separate
1666        S/R seaice_reg_ridge that will both regularize the state variable after
1667        advection call the actual ridging routine;
1668      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1669        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1670      - remove ridging code from seaice_advdiff
1671      - clean up remaining part 1 of seaice_growth in an attempt to make it
1672        more readable (this is probably subjective)
1673      - call seaice_itd_redist once in the initialisation phase to have the initial
1674        conditions in the correct category
1675      - finally: add new ridging routine for ITD code
1676    
1677    checkpoint64v (2014/04/11)
1678    o pkg/ecco:
1679      - add runtime parameters mdt[start,end]date[1,2]
1680      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1681    o pkg/seaice:
1682      - make deltaC a global variable, so that it can be used in ridging code
1683      - first step towards ridging: introduce new routines that compute
1684        ice strength based on ridging parameters
1685      - add diagnostic for HSNOWITD
1686      - add opnWtrFrac as a global variable (required for ridging scheme)
1687    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1688      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1689        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1690    o verification/hs94.1x64x5:
1691      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1692      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1693    o autodiff:
1694      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1695        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1696        For now, only in pkgs used in verification/hs94.1x64x5.
1697      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1698        which are specific to TAF/TAMC).
1699      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1700        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1701        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1702      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1703        building mitgcmuv_ad (make adAll).
1704    o pkg/ecco:
1705      - cost_gencost_seaicev4.F:
1706         reformulate proxy cost as function of sst and local param SEAICE_freeze
1707         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1708      - add stop statement if old names siv4-[sst,vol] are used
1709      - add snapshots + cost reports for atmospheric longwave
1710      - remove factor 0.1 in front of wtau[u,v]
1711      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1712         ALLOW_TMI_SST_COST_CONTRIBUTION
1713    o pkg/atm_phys:
1714      - add some diagnostics for Short-wave and for convection S/R.
1715    o pkg/seaice/seaice_growth:
1716      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1717        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1718      - rearrange loop order for better vector code in the same code block
1719      - rewrite the floeDiameter formula to have fewer divisions
1720      -  (miraculously) none of this changes the results of seaice_itd
1721    o pkg/smooth:
1722      - move param smooth2Ddiffnbt to pkg/ecco
1723    o pkg/salt_plume:
1724      - salt_plume_frac.F:
1725         clean up local param names
1726         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1727    o pkg/rw:
1728      - add RS version of S/R READ_MFLDS_LEV.
1729    o pkg/streamice:
1730      - fix the restart test by writing/reading pickup_streamice files.
1731    o pkg/seaice:
1732      - refine checks for jfnk-related parameters
1733      - comment out if statement with SEAICEuseIMEX parameter as long as there
1734        is no IMEX code to avoid confusion and surprises
1735    
1736    checkpoint64u (2014/03/07)
1737    o verification/MLAdjust:
1738      - rename secondary test suffix:
1739         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1740         0.leithD -> AhFlxF  + switch to flux-form
1741         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1742         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1743    o pkg/mom_vecinv:
1744      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1745        to be before mom_calc_visc.F)
1746      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
1747      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
1748        this is simpler for the adjoint and for diagnostics.
1749    o model/src + pkg/momentum:
1750      - add input files for  2-D additional Western and Southern cell-edge wall
1751         (e.g., to add "thin-wall" where it is =1).
1752      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
1753        using 2nd hFacZ that is computed from initial (fix domain) hFac
1754      - known limitations of thin wall implementation: not yet coded for sigma
1755        coords; not working with CD-scheme neither.
1756    o pkg/seaice:
1757      - rename recently introduced parameters from (wrong name) AB to
1758        BDF (backward difference time discretisation)
1759      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
1760    o tools/adjoint_options:
1761      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
1762    
1763    checkpoint64t (2014/02/01)
1764    o pkg/ecco
1765      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
1766        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
1767      - replace hard-coded record number and period which only work for monthly
1768        with read-in runtime param that works for other periods (month,day,year)
1769    o pkg/thsice
1770      - corrected store directive fixes thsice adjoint gradient checks
1771    o genmake2 & testreport:
1772      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
1773        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
1774        Update testreport accordingly. No need to set "export OPENAD=true"
1775        in adjoint_options/adjoint_oad anymore (will be removed later).
1776    o pkg/shelfice:
1777      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
1778        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
1779        so that surface forcing applies to k=kSurf if using pkg/shelfice.
1780    o pkg/ctrl, pkg/grdchk, pkg/ecco:
1781      - Changes to make GENARR more modular (i.e. invisible if not used)
1782    o model/src/temp_integrate.F and salt_integrate.F
1783      - re-include store directives that were removed on Dec 27th.
1784    o model/src/external_forcing_surf.F
1785      - add storage directives for EmPmR and PmEpR to avoid recomputation of
1786        seaice_model in the adjoint that is problematic when seaice_model is
1787        turned off in the adjoint. The resolved issue dated back to July when
1788        EXTERNAL_FORCING_SURF call was moved.
1789        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
1790    o pkg/exf/exf_check.F
1791      - fix a small bug again (originally found by Wentao Liu, now found again)
1792      - streamline error output
1793    o pkg/streamice and aim_v23:
1794      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
1795        Apple's /usr/bin/cpp knows what to do:
1796        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
1797        Target: x86_64-apple-darwin13.0.0
1798    
1799    checkpoint64s (2014/01/05)
1800    o tools/adjoint_options:
1801      - switch to fastopt.net TAF server (instead of default fastopt.de) for
1802        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
1803    o model/src:
1804      - remove some unnecessary TAF storage directives in forward_step.F and
1805        in dynamics.F (note: not always removed by TAF, e.g., double storage
1806        of kappaRU,kappaRV in former version of dynamics.F).
1807    o model/src & pkg/ptracers:
1808      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
1809        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
1810        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
1811      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
1812      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
1813      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
1814    o useSingleCpuInput separates single-CPU input from single-CPU output;
1815        for now only implemented for in exf_interp_read.F
1816    o verification/advect_xy:
1817      - fix missing EXCH call in local version of ini_salt.F and update output.
1818    o momentum diagnostics:
1819      - fix which deltaT is used in Total-Tendency diagnostics.
1820      - fix typo in diagnostics for momentum tendency from AB.
1821    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
1822        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
1823    
1824  checkpoint64r (2013/12/08)  checkpoint64r (2013/12/08)
1825  o verification/*/results:  o verification/*/results:
# Line 112  o verification: Line 1925  o verification:
1925  o pkg/cost:  o pkg/cost:
1926    - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL    - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
1927      (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:      (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
1928      o this fixes global-sum value if multi-threads (since GLOBAL_SUM_TILE_RL      o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
1929        cannot be applied to var in common block).        cannot be applied to var in common block).
1930      o allows to get results independent of tile-per-proc setting (if using      o allows to get results independent of tile-per-proc setting (if using
1931        slower GLOBAL_SUM_SEND_RECV option).        slower GLOBAL_SUM_SEND_RECV option).

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