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revision 1.1915 by jmc, Thu Aug 22 01:20:58 2013 UTC revision 1.2316 by jmc, Thu Mar 23 01:49:45 2017 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/mom_vecinv:
8      - highOrderVorticity in selectVortScheme=2 case: fix c4 coeff in splitted
9        vorticity flux (keep same sum in case vBarXm=vBaXp, uBarYm=uBarYp).
10    o pkg/bling:
11      - Many small changes intended to clean the code.
12        Unnecessary ADJOINT_SAFEs removed ;
13        removed BLING_COST.h BLING_CTRL.h bling_cost.F ;
14        diagnostics added.
15    
16    checkpoint66e (2017/03/14)
17    o pkg/exf:
18      - interpolation with #undef EXF_INTERP_USE_DYNALLOC: move buffer size
19        definition outside EXF_PARAM.h in new header file: EXF_INTERP_SIZE.h;
20        use fixed size buffer (passed to S/R EXF_INTERP & EXF_INTERP_UV) to
21        avoid any dynamic allocation ;
22      - S/R EXF_CHECK: add new check & stop when file-name is defined but not
23        read-in ; add warning when file is read-in but not used within pkg/exf ;
24        + check for buffer-size (if #undef EXF_INTERP_USE_DYNALLOC).
25      - update exf_summary.F (print {FLD}RepCycle).
26    o verification/global_with_exf:
27      - switch on exf interpolation in AD test (just like the forward test)
28    o pkg/mom_vecinv:
29      - add storage directives to avoid recomputations within mom_vecinv.F
30        which were generating seg. fault with gfortran -devel
31    o pkg/ctrl, pkg/smooth:
32      - initialize array halos which were generating seg. fault with
33        gfortran -devel in adjoint mode
34    o pkg/exf:
35      - for each input field, enable to specify a field specific repeat-cycle
36        ({FLD}RepCycle) which defaults to pkg/exf main "repeatPeriod".
37    o verification/lab_sea:
38      - update AD results of primary test and noseaicedyn test after switching
39        to new version of TAF (5.3.13 vs 5.3.2 before); agreement with gradient
40        check stays about the same.
41    o pkg/exf:
42      - fix bug in exf_zenithangle.F for cases select_ZenAlbedo > 0 with useCAL=T.
43      - exf_check: MAX_LAT_INC need only be "loc_nlat-1", not equal to loc_nlat
44    o pkg/bling, USE_EXFCO2 code:
45      - add parameter "apco2RepCycle" (set to pkg/exf "repeatPeriod" by default);
46      - update calls to EXF S/R (use new version: EXF_INIT_FLD & EXF_SET_FLD).
47    o pkg/exf:
48      - rename S/R EXF_INIT to EXF_INIT_VARIA ;
49      - add arguments: fldName (for debug msg) and fldRepeatCycle (set to
50        repeatPeriod) to S/R EXF_SET_UV and to S/R EXF_SET_GEN (renamed EXF_SET_FLD)
51        and update calls in pkg/exf calling S/R (exf_getffields.F & exf_getclim.F) ;
52      - add argument: fldName (for debug msg) to S/R EXF_INIT_GEN (renamed
53        EXF_INIT_FLD) and update calls in exf_init_varia.F
54      - For now, for backward compatibility, keep a simplified version of S/Rs
55        EXF_SET_GEN & EXF_INIT_GEN in file exf_set_gen.F
56      - add and pass new arguments: fldName (for debug msg) and fldRepeatCycle
57        to S/R EXF_GetFFieldRec ; update calls in pkg/obcs/obcs_exf_load.F
58    o tools/genmake2:
59      - replace "bc -l" (only used once) by "expr" (already used).
60    o verification/global_ocean.cs32x15:
61      - turn off pkg/cal (useCAL=F) in secondary FWD exp. "icedyn".
62        Note: exf setting (data.exf) can be compared to other exf secondary exp
63        "seaice" (kept with useCAL=T) which has same time dependent forcing.
64    
65    checkpoint66d (2017/02/13)
66    o pkg/exf:
67      - remove setting of useCAL=T when using pkg/exf (useEXF=T); add warning
68        early on (in packages_boot.F) to stress this change in pkg setting.
69      - In (most) verification exp. that use pkg/exf, add useCAL=.TRUE. to data.pkg
70    o model/src:
71      - move call to ecco_phys to end of time step; this may induce minor
72        cost function changes by shifting time averages by one time step
73        for some variables; this revision resulted in changed adjoint results
74        in MITgcm_contrib/verification_other/global_oce_cs32
75    o pkg/exf:
76      - Change EXF_READ_EVAP to only activate code within #ifdef ALLOW_ATM_TEMP ;
77        this prevents to read evap when ALLOW_ATM_TEMP is undef and other fields,
78        e.g. precip, are not available.
79    o pkg/flt:
80      - flt_init_varia.F: use pickupSuff if specified
81      - add code (within #ifdef DEVEL_FLT_EXCH2) and test case as a first,
82        intermediate, step towards completing pkg/exch2 support within pkg/flt;
83        ifdef DEVEL_FLT_EXCH2 then:
84        - flt_init_fixed.F: comment out stop
85        - flt_exch2.F: conserve ipart, jpart (grid coordinates)
86        - exch2_recv_get_vec.F: transform ipart, jpart (grid coordinates)
87        - flt_mapping.F: attempt to fix longitude diagnostic near date-line
88        - flt_init_varia.F: hack initialization (for testing purposes w. LLC90)
89    o tools/genmake2 & pkg/pkg_depend:
90      - define new type of pkg dependency rule ("=pkg_x"), less strict than
91        the "+" rule, that add the dependent pkg (pkg_x) unless it's disabled
92        (-pkg_x in packages.conf).
93      - change pkg/exf dependency rule from "exf +cal" to "exf =cal";
94      - add "+cal" to dependency list of pkg/ecco (needed to compile).
95      - simplify FWD experiment "offline_exf_seaice" by removing pkg/cal.
96    o utils/matlab:
97      - adding ocean_basin routines for defining basin masks.
98    o pkg/exf:
99      - new S/R EXF_GETFFIELD_START replacing EXF_GETFIELD_START, but with more
100        arguments, allowing to check (and stop) if parameter setting of
101         {FLD}startdate1 & date2 and of {FLD}StartTime are consistent with
102        useCAL= T or F. For now, kept a simplified version of EXF_GETFIELD_START
103        for backward compatibility.
104      - change accordingly calls in exf_init_fixed.F + default {FLD}StartTime in
105        exf_readparms.F ; apply same changes to pkg/icefront (for SGRunOff field).
106    o pkg/bling (USE_EXFCO2 code):
107      - fix missing setting of apco2StartTime according to apco2startdate1 & date2
108        by adding a call to S/R EXF_GETFFIELD_START.
109    o pkg/exf:
110      - allows to compile without pkg/cal (but disabled by current dependency
111        rules, i.e., default "pkg/pkg_depend"). Minimal changes to enable to
112        run with useCAL=F ; this involves setting directly {FLD}StartTime instead
113        of {FLD}startdate1 & date2 ; consistency check not yet coded.
114    o verification/global_ocean.cs32x15:
115      - fix all data.exf for a shift of 1 day in all field startdate1 so that it now
116        corresponds to middle of 1rst month; update outputs (2 fwd + 3 adm + 3 tlm).
117    o pkg/exf:
118      - allow to use EXF_ZENITHANGLE without pkg/cal + simplify (saving some
119        calculations); change FWD experiment global_ocean.cs32x15
120        (#define ALLOW_ZENITHANGLE) to test/check that this code compiles.
121    o pkg/exf:
122      - In preparation for addition to NAMELIST, rename internal (_RL) parameter
123         {FIELD}startdate to {FIELD}StartTime
124        Note: new name also fit better the content, i.e, a start time in second.
125    o eesupp/src:
126      - add 1 argument to S/R EEBOOT & EEBOOT_MINIMAL for interface with ESMF
127    o pkg/exf:
128      - add option ALLOW_READ_TURBFLUXES (and corresponding set of parameters)
129        to allow to read-in Sensible & Latent Heat flux ;
130      - simplify pkg/exf main options:
131        1) move small piece of code (case ALLOW_ATM_TEMP undef) out of
132           exf_bulkformulae.F into exf_wind.F so that exf_bulkformulae.F is
133           compiled only when both ALLOW_ATM_TEMP & ALLOW_BULKFORMULAE are defined;
134        2) make call to EXF_RADIATION and to EXF_WIND independent of CPP option
135           ALLOW_BULKFORMULAE which now only applies to S/R EXF_BULKFORMULAE ;
136        3) improve options documentation in EXF_OPTIONS.h.
137    o pkg/ecco:
138      - cost_gencost_customize.F,ecco.h,ecco_phys.F,ecco_readparms.F, and
139        ecco_summary.F: add passive tracer cost functions to gencost;
140        m_ptracer and m_boxmean_ptracer
141    o pkg/ctrl:
142      - ctrl_map_forcing.F: pass myIter and myTime to ctrl_map_forcing as input
143        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing; add to list
144        of implemented gentim2d contol parameters: xx_qnet, xx_empmr, xx_qsw,
145        xx_sst, xx_sss, xx_pload, xx_saltflux, xx_fu, xx_fv, xx_fe, xx_fn
146    o model/src:
147      - forward_step.F: pass myIter and myTime to ctrl_map_forcing as input
148        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing
149    o pkg/exf:
150      - exf_getffields.F: add to list of implemented gentim2d contol parameters:
151        xx_lwflux, xx_swflux, xx_evap, xx_apressure, xx_areamask
152    
153    checkpoint66c (2017/01/19)
154    o verification:
155      - add new option "-src" to testreport to only produce source code (*.f),
156        including taf output src code (if using '-adm'/'-tlm' option).
157    o pkg/exf:
158      - add saltflx :: Net upward salt flux in psu.kg/m^2/s
159    o pkg/diagnostics:
160      - add run-time variable diagMdsDir to specify a subdirectory for
161        diagnostic output when mds is being used and mdsioLocalDir is not.
162    o pkg/mnc:
163      - mnc_utils.F: edit stop message
164    o pkg/autodiff:
165      - autodiff_ini_model_io.F: PRINT_MESSAGE, clean-up comments, add _*_MASTER,
166        add HAVE_SYSTEM bracket around system call to mkdir
167    o pkg/profiles:
168      - profiles_findunit.F, profiles_init_fixed.F, profiles_interp.F,
169        profiles_readparms.F: call ALL_PROC_DIE before 'stop'
170      - profiles_ini_io.F: use PRINT_MESSAGE, clean-up comments, add _*_MASTER,
171        add HAVE_SYSTEM bracket around system call to mkdir
172    o pkg/smooth:
173      - smooth_filtervar2d.F, smooth_filtervar3d.F: call ALL_PROC_DIE before 'stop'
174      - smooth_init2d.F, smooth_init3d.F: move print statements to readparms
175      - smooth_readparms.F: add cleaner print statements from smooth_init?d.F
176    o pkg/exf:
177      - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
178        issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc > 500
179        generalize tests on interpMethod, nlat, and lon_inc to all exf variables.
180      - summary: skip detailed field report if not used (empty file-name).
181    o tools/xmakedepend:
182      - In case line editor "ed" is missing, switch to "sed" command to clean-up
183        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
184    o pkg/exf:
185      - change definition of "hflux" input file to always include Short-Wave;
186        this is now consistent with hflux computation (if using bulk-formulae)
187        and hflux diagnostic & documentation (in EXF_FIELDS.h).
188    
189    checkpoint66b (2016/12/01)
190    o model & momentum pkgs:
191      - implement fully implicit bottom friction combined with implicit surf.
192        pressure, for now, only in hydrostic formulation:
193        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
194          and run with selectImplicitDrag=2 ;
195        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
196      - partial implicit time-stepping (bot. friction + vert. visc first, then
197        surf. press) corresponding to selectImplicitDrag=1 should be applicable
198        to NH formulation but not available until we solve for surf. pressure
199        increment (instead of full etaN).
200      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
201        with implicit vertical viscosity.
202    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
203      - this is a first version that includes many regularisations that may
204        not all be necessary, to be sorted out,
205      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
206      - change one verification experiment in seaice_itd to use and test new code
207      - seaice_growth: catch a case where the argument of log can be zero
208        or smaller (important for code stability)
209    o model/src:
210      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
211        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
212        similar A.X'=Y' system (with same matrix A) in subsequent calls;
213        switch based on errCode (In/Out) argument value; in calling routines,
214        initialise errCode before first call.
215    
216    checkpoint66a (2016/10/18)
217    o pkg/bling:
218      - BLING package now loads in atmospheric pCO2 file using exf package routines
219        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
220    o model/src & pkg/ptracers:
221      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
222        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
223        implicitDiffusion (respectively) are used (even without momImplVertAdv
224        or temp,salt,PTRACERS_ImplVertAdv).
225    o model/src & generic_advdiff:
226      - add parenthesis in main diagonal calculation of implicit vertical
227        diffusion matrix (impldiff.F & gad_implicit_r.F).
228        This affects results at machine truncation level; update output of many
229        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
230    o pkg/mom_commom & generic_advdiff:
231      - add deep atmosphere and anelastic scaling factor in implicit vertical
232        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
233    o model/src:
234      - remove few unnecessary temp array copies in solve_tridiagonal.F
235        & solve_pentadiagonal.F
236    
237    checkpoint65z (2016/09/28)
238    o pkg/seaice: fix multithreading for seaice_fgmres.F
239      - remove unecessary variables from common blocks
240      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
241        basis, that are stored in commom blocks (including integer variable i1)
242      - clean up code a little by removing commented lines that refer to
243        original code
244      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
245    o MITgcm manual:
246      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
247        preliminary documentation for generic controls (8.3; ctrl.tex),
248        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
249        ecco_costfunction.tex
250    o pkg/ecco:
251      - update and cleanup list of CCP options
252      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
253        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
254      - add checks that retired run-time options are not used, and in relation
255        to gencost_mask and gencost_errfile
256      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
257        gencost_nrecperiod
258      - fix m_eta computation for virtual salt flux case
259      - add m_horflux_vol case (selected via gencost_barfile) that computes
260        transports via cost_gencost_boxmean (gencost_flag=-3)
261      - use gencost_flag more systematically (i.e., avoid using gencost_name)
262        for code switches (aside from physical variable selection)
263    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
264      attempt appears to be a bit of a hack and my need some repair down the road
265    o pkg/exf:
266      - interpolation near South Pole: fix criteria on input field latitude.
267    o pkg/icefront & pkg/exf:
268      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
269        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
270    o pkg/exf:
271      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
272        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
273        (add suffix "_out" instead of a prefix); keep same record number as in
274        input file but always write record 1 first (to avoid a STOP in I/O S/R).
275        Change output file content by writing interpolated field before applying
276        land-sea mask (helpful for debug).
277      - 2 compon. vector interpolation with rotation: apply scaling factor on
278        each compon. (Eastward and Northward) just before rotation.
279    o pkg/bling:
280      - Cleaned package. Removed not needed code and comments.
281      - adjoint example now works
282        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
283    o pkg/ptracers:
284      - add Bruno Deremble's code to complete the linear surface correction
285        for tracer conservation;
286      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
287    
288    checkpoint65y (2016/07/29)
289    o pkg/debug (stats):
290      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
291        proc/thread mapping);
292      - fix Min & Max for case where 1 thread has only empty tiles;
293      - use RL variable to count number of wet grid points (with big domain,
294        can be too large to fit into integer*4).
295    o pkg/monitor:
296      - use RL variable to count number of wet grid points (but used only for del2)
297      - add new routine to compute Advective CFL within tracer time-stepping with
298        writing delayed until next monitor output.
299    o pkg/obcs:
300      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
301    o pkg/cal:
302      - calandar-dump: treat case myTime < timePhase in the same way as in
303        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
304    o pkg/dic & seaice:
305      - fix compilation of ocean component for coupled atm+ocn model with
306        seaice dynamics & dic.
307    
308    checkpoint65x (2016/06/11)
309    o add a license text file in main MITgcm tree.
310    o added pkg/bling:
311      - intermediate complexity biogeochemical model
312      - see bling_description.txt for details
313      - verification experiment is global_oce_biogeo_bling (for now, in
314        Contrib/verification_other/); tested daily on baudelaire with gfortran.
315      - add entry point in pkg/gchem for new pkg "bling".
316    o pkg/seaice: fix tensile stength computation
317      - replace global field tensileStrength by tensileStrFac
318      - tensileStrFac can be computed once in S/R seaice_init_varia
319      - fortunately that does not affect any verification results
320    
321    checkpoint65w (2016/05/12)
322    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
323         with ECCO_CTRL_DEPRECATED defined
324    o verification/global_ocean.cs32x15:
325      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
326        with "selectNHfreeSurf=1".
327    o model/src (non-hydrostatic free-surface):
328      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
329        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
330      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
331        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
332        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
333        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
334      - Update output (changes at machine truncation level) of verification exp:
335        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
336        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
337    o pkg/seaice: ITD code
338      - fix picking up from a single category model by initialising
339        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
340      - split a long warning message in seaice_check_pickup.F into two lines,
341        because NEC SX-ACE cannot deal with the long line.
342    o model/src:
343      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
344    o pkg/seaice:
345      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
346    o pkg/seaice:
347      - add basal stress as parameterisation for grounding ice
348        following Lemieux et al. (2015)
349      - turn on by setting new parameter SEAICEbasalDragK2 to a value
350        larger than 0. Lemieux et al. (2015) recommend 15.
351      - The adjoint complains with extra recomputations so there is also a
352        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
353        order to postpone the problem
354      - compile the new code in lab_sea
355    o verification/halfpipe_streamice:
356      - update both TAF and OpenAD adm output (machine truncation differences)
357    
358    checkpoint65v (2016/04/08)
359    o verification/advect_xz:
360      - increase overlap size from 3 to 4 and add new secondary test for PQM
361        advection scheme (with mono & wino limiter).
362      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
363    o model/src:
364      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
365        added phi0Ref) to set vertical axis origin and phiRef origin;
366        keep Ro_SeaLevel for backward compatibility (with a warning).
367       According to coordinate and fluid type:
368        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
369        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
370        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
371        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
372      - remove Ro_SeaLevel from ATM experiment parameter files;
373      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
374        complement; update output.txt (changes at machine truncation level).
375    o pkg/seaice/seaice_evp.F
376      - simplify computation of deltaZ and zetaZ to simple averaging following
377        Bouillon et al. (2013). This removes a lot of code, but also changes
378        verification experiment lab_sea.hb87 -> updated
379    
380    checkpoint65u (2016/03/14)
381    o pkg/generic_advdiff:
382      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
383        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
384        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
385        testing and not for actual use.
386    o model/src:
387      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
388        origin r = rF(1);
389      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
390        in EOS for height coordinate: enable to include NH Pressure or to use
391        more accurate pressure vertical profile; options not linked to EOS type
392        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
393      - start to implement variable gravity (along vertical): for now, only with
394        z-coords (not even z*).
395      - add Ideal Gas equation of state for height coordinate.
396      - update OpenAD output (affected at machine truncation level) of exp:
397        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
398    o pkg/exf:
399      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
400        of exf interpolation (before any rescaling, rotation or interpolation
401        to velocity point) for each field that gets loaded from file. This option
402        identically mimics the input file organization (e.g. record numbers in year
403        by year input files) besides the change in horizontal grid.
404      - add rotateStressOnAgrid run-time switch so that wind stress fields
405        can be provided on the A-grid in zonal/meridional direction and
406        rotated on the fly. This only applies to the case when the exf
407        interpolation is off and rotateStressOnAgrid is false by default.
408    o model/src:
409      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
410        it's also used with pkg/atm_phys) and add few more parameters (but still
411        inactive, src code yet to come)
412    
413    checkpoint65t (2016/02/10)
414    o pkg/atm_phys:
415      - from Ruth Geen: add optical depth dependence on CO2 concentration.
416    o model/src:
417      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
418        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
419        Update output of exp. deep_anelastic (changes at truncation level).
420    o tools:
421      - add a hack in "remove_comments_sed" (used only with TAF) for recent
422        version of OpenMPI (shipped with FC.23): comment out the new header
423        file "mpif-sizeof.h" which causes problems to TAF.
424    o pkg/seaice:
425      - change the termination criterion so that maxits (SEAICElinearIterMax)
426        has an effect
427      - unify iteration parameters for implicit solvers (JFNK and Picard)
428        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
429        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
430        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
431        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
432        SEAICEnonLinTol     replaces JFNKgamma_nonlin
433      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
434      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
435        use with SEAICEuseKrylov
436    o pkg/seaice/seaice_lsr.F
437        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
438        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
439        an effect.
440    o pkg/seaice: add two new parameters
441      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
442        parameter is not in any namelist)
443      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
444        a preconditioner for the non-linear Newton iteration of the JFNK
445        solver
446    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
447      affects some experiments at truncation level:
448      - global_ocean.cs32x15.icedyn (11 digits),
449      - global_ocean.cs32x15.seaice (11 digits),
450      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
451      - also update global_ocean.cs32x15 adjoint and tangent-linear results
452    o pkg/salt_plume & pkg/thsice:
453      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
454        connect salt_plume flux to ATM-OCN coupling pkgs interface:
455       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
456         export to coupler interface) even without compiling pkg/salt_plume ;
457       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
458         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
459    o pkg/dic:
460      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
461        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
462        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
463      - move also update with values from ATM-OCN Coupler in the same new S/R
464        (previously done in ocn_apply_import.F).
465    o tools/adjoint_options:
466      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
467        has been changed on Jan 14, 2016.
468    o pkg/ggl90:
469      - add alternative discretisation of vertical shear (off by default), to
470        compute the mean (@ grid-cell center) of vertical shear compon instead of
471        vertical shear of mean flow (@ grid-cell center).
472      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
473        results on adjacent faces of cubed-sphere grids; this fix the restart.
474    o pkg/atm_compon_interf:
475      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
476        pass last value, stored directly before export to CPL ;
477        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
478      - remove atmSLPr from pickup files (no longer needed for restart)
479    
480    checkpoint65s (2016/01/13)
481    o eesupp & genmake2:
482       - first check for Function ETIME and, if it fails, then check for subroutine
483         ETIME and consistent output; use the appropriate version in timers.F
484    o model/src:
485      - to check restart test, add option to apply EXCH to U,V earlier, just before
486        integr_continuity; turned off by default.
487    o pkg/dic:
488      - remove CPP option USE_ATMOSCO2 (not needed)
489    o tools/tst_2+2:
490      - try to ignore difference between +0 and -0 in binary file, causing test
491        to fail for no good reason.
492    o eesupp & genmake2:
493      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
494        but also check (in genmake2) that test runs and returns meaningful results.
495    o coupler pkgs:
496      Finish implementation of optionally-exchanged variable switches (started on
497       Nov 12) with addition of few more exchanged fields, including 2-way exchange
498       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
499       advection in OCN component; this requires sequential coupling.
500      coupler (pkg/atm_ocn_coupler):
501      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
502        routines (useful for debug).
503      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
504         flux, DIC fields) if corresponding switch is ON.
505      - add option to export RunOff to OCN (to use for DIC river input)
506      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
507      components (pkg/atm_ & ocn_compon_interf):
508      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
509        optionally exchanged fields; add a check & stop in cpl_readparms.F.
510        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
511        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
512      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
513        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
514      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
515      - hold in common block coupler optionally-exchanged variable switch
516        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
517      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
518        this is intended to replace the OCN cplFldtave.* output files (not updated
519        to contain new additional exchanged fields).
520    o pkg/dic:
521      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
522    o pkg/thsice:
523      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
524        and writing of thsice pickup files.
525    o pkg/atm_compon_interf:
526      - move all field individual export-call out of cpl_export_import_data.F
527        into new S/R ATM_EXPORT_FIELDS
528    o pkg/atm_compon_interf:
529      - store state variables (for now, only thSIce fields) just before beeing
530        exported (in cpl_export_import_data.F, like on ocean side) instead of from
531        atm_store_my_data.F like all exported fluxes.
532      - new version of pickup_cpl: write field names into meta file and read meta
533        file to find field postion in pickup. Also only write/read fields meeded for
534        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
535    o pkg/dic:
536      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
537    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
538        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
539        value can be from domain [0,1] to average between the two methods
540    o pkg/atm_phys:
541      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
542        hold fixed in time).
543    
544    checkpoint65r (2015/12/21)
545    o pkg/seaice:
546        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
547        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
548    o pkg/seaice:
549      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
550        when SEAICEscaleSurfStress=.TRUE.,
551      - apply areaW and areaS in S/R seaice_calc_lhs
552    o pkg/atm_phys:
553      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
554        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
555        for individual contribution (convection, LSC cond, radiation)
556      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
557        information); activated with: solar_exponent=0. and wv_exponent=-1.
558    o pkg/ggl90:
559      - within IDEMIX add upper limit for horizontal group velocity to
560        avoid instability problems in the explicit horizontal diffusion term for
561        long time steps or high resolution
562    o pkg/diagnostics:
563      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
564        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
565    o testreport:
566      - remove "-v" (verbose option) in default mpirun command.
567    o pkg/seaice/seaice_growth:
568      - catch potential division by zero in ITD code, does not change
569        verification results
570    o pkg/ecco:
571      - retire old codes to the Attic. The calls to retired functions are
572        left in a commented form in case they ever need to be re-activated.
573      - ecco_check.F: issue warning if any old CPP option is
574        defined that corresponds to retired codes -- then stop.
575    o pkg/atm_compon_interf:
576      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
577        coupler: use last time-step value instead of average over cplSendFrq_iter
578        time-step, similar to what is done for seaIceMass.
579        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
580    o eesupp & genmake2:
581      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
582        <= remove until a fix is found for some ifort version on ia32 machine.
583    o pkg/seaice/seaice_evp:
584      - refine residual computation
585    
586    checkpoint65q (2015/11/18)
587    o pkg/seaice/seaice_evp:
588      - fix residual computations so that they no longer affect the actual
589        simulation code
590      - fix seaice_readparams to be able to actually set new parameters
591        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
592    o model/src:
593      - fix wrong truncation (single prec) from "FLOAT" function in expressions
594        like: deltaT*FLOAT(myIter) when myIter is large:
595         a) replaced by DFLOAT (if not seen by TAF);
596         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
597    o pkg/aim_v23:
598      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
599        when pickupSuff is set ; do write rolling pickups + at the end of the run.
600    o pkg/atm_ocn_coupler + ocn_compon_interf:
601      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
602        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
603        add corresponding call in DO_OCEANIC_PHYS.
604    o coupler pkgs:
605      Start a new way to set-up optionally-exchanged variables (previously, only
606       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
607       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
608       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
609       compononent param default can be set accordingly).
610      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
611       but rather applies to a group a fields (going both ways like for DIC)
612       and corresponds to an option of coupling config.
613      coupler (pkg/atm_ocn_coupler):
614      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
615        and read namelist directly (without eessup S/R calls) instead of
616        in the very un-flexible old way, 1 param per line, in fixed order;
617      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
618        cleanly in CPL_CHECK_CPLCONFIG
619      - add new coupling-exchange selectors (some not yet active) including
620        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
621                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
622      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
623        component ; called directly from coupler.F, after comp. registrations;
624      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
625         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
626          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
627      components (pkg/atm_ & ocn_compon_interf):
628      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
629        CPP header file in all pkg source files.
630      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
631        ATM/OCN_CHECK_CPLCONFIG;
632      - add error-counter to track errors (e.g., in "data.cpl") and to stop
633        cleanly in ATM/OCN_CHECK_CPLCONFIG;
634      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
635        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
636        before PACKAGES_READPARMS;
637      verification/cpl_aim+ocn/:
638      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
639        "data.cpl" for coupler (in input_cpl).
640    o eesupp/inc:
641      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
642        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
643        to always cumulate tile local-sum in the same order (still uses
644        MPI_Allreduce like standard code).
645      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
646        that are now identical to standard version (in eesupp/inc).
647    o pkg/shelfice:
648      - add SHELFICETransCoeffTFile for initializing spatially varying
649        heat and salt transfer coefficients
650    o pkg/atm_compon_interf & ocn_compon_interf:
651      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
652        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
653      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
654    o pkg/atm_ocn_coupler:
655      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
656    o pkg/rbcs:
657      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
658        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
659      - add a short report (to STDOUT) about RBCS-mask settings.
660    
661    checkpoint65p (2015/10/23)
662    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
663        there is no adjoint test for EVP, we don't know what it does to the adjoint
664        solution, but at least there are no more recomputation warnings left
665    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
666        a chance of giving the same results as a fully converged VP (JFNK) solver
667    o tools/adjoint_options/adjoint_diva:
668      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
669    o pkg/streamice:
670      - spotted bug in streamice_driving_stress using dyG where should have been dxG
671    o pkg/exf:
672      - remove STOP statement that prevented to use wind or (wind-)stress
673        interpolation for constant-in-time forcing fields (wind/stress period = 0).
674    o pkg/seaice:
675      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
676        5 additionals 2D fields and 6 new store directives
677      - change logic in seaice_readparms.F: EVP code can now be turned on in
678        various ways, setting SEAICE_deltaTev is no longer required,
679        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
680        or SEAICEaEVPcoeff
681    o pkg/shelfice/shelfice_thermodynamics.F
682      - redefining uLoc/vLoc to u/v, instead of 2u/v
683    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
684      - this is an intermediate state of a truely converging EVP that has
685        the potential of outperforming implicit VP methods, I do not recommend
686        using it yet.
687      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
688        and all parameters are hardwired
689      - for convergence it still requires very smooth regularisations, that means,
690        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
691        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
692        specific averaging appears to be required, still subject to tuning
693      - still needs cleaning and I need to turn parameter into runtime parameters
694      - add code to compute and print residuals of iteration, compile with
695        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
696    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
697      that entered with r1.54 on Sep04, 2015, -> update results
698    
699    checkpoint65o (2015/09/14)
700    o pkg/mom_vecinv & mom_common:
701      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
702        called from there.
703      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
704        allows to use Vector-Invariant form in deep atmos and anelastic formulation
705    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
706      and Koenig-Beatty+Holland (2012)
707      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
708      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
709      - requires an extra input argument for S/R seaice_calc_viscosities
710      - tensileStrength's depth dependence is different from Itkin et al. (2015)
711        (to be changed and played with, for now exponential)
712    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
713      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
714        by AREA according to Connelly et al. (2004), JPO.
715      - For EVP and the LSR solver, the implicit part of the drag term is
716        the only non-zero term in the denominator when there is no ice (which
717        prevented running the model with zero ice-ocean drag). If
718        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
719        (or zero main diagonals BU/BV) which need to be caught. A practical
720        consequence is that for open water, the momentum equation reduce
721        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
722        they happen to be zero, often leading to a non-zero solution over
723        open water.
724    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
725        efficient EVP method.
726      - introduce area-weighted averages for e12 (analogously to
727        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
728        remain, but also changing the order of terms in the previous average
729        changed the results as much) -> update experiment
730      - add SEAICE_DELTA_SMOOTHREG code
731      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
732        TEM-code
733      - adjust loop bounds so that only required fields are computed
734      - add new averaging code for zetaZ/deltaZ (again similar to
735        seaice_calc_viscosities.F), inactive by default for now (will change
736        results again), but will replace old code eventually
737    o eesupp/src:
738      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
739        to always cumulate tile local-sum in the same order
740        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
741        Still uses MPI_Allreduce (like standard code) but on array of tiles
742        and should be faster than GLOBAL_SUM_SEND_RECV code.
743      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
744        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
745      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
746         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
747         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
748         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
749         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
750    
751    checkpoint65n (2015/07/29)
752    o pkg/thsice:
753      - add a warning when used with pkg/aim but without updating SST
754        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
755    o pkg/offline:
756      - change where Offline-Fields are loaded, from load_fields_driver.F to
757        directly within FORWARD_STEP, just after updating iter number and time;
758      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
759        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
760       These changes allow:
761        a) to recover exactly on-line results using deltaToffline=deltaTClock,
762        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
763        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
764        time-step, both with GM & KPP files and with recomputing these fields;
765        b) no needs to switch on staggerTimeStep anymore;
766        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
767      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
768    o pkg/offline:
769      - change (rarely used) offset-iteration parameter to an offset time (in s):
770        can easily recover previous offset-iter effect by setting offset-time
771        (offlineTimeOffset) to offset-iter x deltaToffline;
772      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
773        in KPP as part of surface buoyancy forcing) in offline run.
774      - fix ptracers KPP non-local term in the case where KPP is re-computed.
775    o OpenAD
776      - Adding preliminary ggl90 test to OpenAD verification.
777        Config. with ggl90 currently diverges after 64 time steps
778        so will need more work to become more stable
779      - Adding preliminary kpp test to OpenAD verification.
780        required small tweakes in kpp_routines.F
781      - Merge and update from Krishna Narayanan's contrib area:
782        * Add one variable for preliminary OpenAD DIVA
783        * Add replacement time-stepping for OpenAD DIVA
784        * genmake2 flag -diva (but only for OpenAD; preliminary)
785        * required modifs for OAD_support
786        successful preliminary test for tutorial_global_oce_biogeo/
787    o pkg/seaice:
788      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
789      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
790        delta with a smooth function in s/r seaice_calc_viscosity
791        (no effect on EVP)
792      - rename local suffix "sqr" into "sq" for more consistent variable names
793    o pkg/seaice:
794        add new parameter SEAICE_deltaMin that is used ***only***
795        for regularizing Delta (and nothing else, like the parameter
796        which is also used for all sorts of things SEAICE_EPS).
797        Defaults to SEAICE_EPS for backward compatibility only.
798    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
799        the wrong key by inialising it before use -> fixes a recomputation
800        problem but does not fix the gradient
801    o pkg/layers:
802      - move resetting of flux arrays to outside the iLa loop
803        (this caused layers_diapycnal to not work with more than one layer coord.)
804      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
805    o pkg/layers:
806      - remove from common block 3D layers fields (used to diagnose transport
807        in tracer coords) and declare them as local arrays in layers_calc.F
808    o pkg/seaice:
809      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
810        in lab_sea forward experiment (changes results -> updated)
811      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
812    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
813       computations; for SEAICE_VECTORIZE_LSR
814      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
815        sweep to the outside,
816      - remove store directives and add "CADJ loop sequential" directives
817        in analogy to model/src/solve_tridiagonal.F
818      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
819        boundaries to yield more readable code. This has also the charming side
820        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
821        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
822        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
823        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
824        an additional option)
825       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
826       but the adjoint gradients (which are affected by this change) still explode.
827    o coupler (atm & ocn _compon_interf):
828      - avoid using Exch2 IO mapping if not suitable.
829    
830    checkpoint65m (2015/06/15)
831    o pkg/layers:
832      - clean-up old parameters setting (from Sep 2012):
833        + remove old parameters setting from common block (declared locally);
834        + stop if any old parameter is mixed with new parameters;
835        + check for valid or consistent parameter setting (e.g., layers_name)
836      - check that layers_bounds for Pot.Density are in the right range;
837        this is supposed to catch un-updated setting after recently shifting
838        potential density field "prho" by -1000 (now in "sigma" scale).
839    o pkg/layers:
840      - Added missing call to layers_fill for keeping track of tottend in
841        pkg/diagnostics/diagnostics_fill_state.F
842    o pkg/layers:
843      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
844        of diapycnal fluxes
845    o pkg/layers:
846      - reverted changes to interpolation to previous treatment; there
847        was never actually a problem
848    o pkg/layers:
849      - fix interpolation of layers tracers in the presence of partial cells
850      - add lots of new functionality to compute water mass transformation
851        (enabled by CPP flag LAYERS_THERMODYNAMICS)
852      - add new calls from main code (diags_oceanic_surf_flux.F,
853        thermodynamics.F, impldiff.F) and gad to save the necessary fields
854        for layers_thermodynamics calculations
855    o pkg/ptracers:
856      - add capability of stepping a passive tracer forward without advection
857        by setting PTRACERS_advScheme to 0.
858    o pkg/diagnostics:
859      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
860    o pkg/layers:
861      - shift potential density field "prho" by -1000 for density layer averaging so
862        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
863        Note that density bin boundaries (layers_bounds in data.layers) have
864        to be set accordingly (i.e., shifted, in sigma scale).
865    o pkg/layers:
866      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
867      - fix calculation of layer non-weighted velocity and layer probability
868      - add diagnostics for pot.density used for layer averaging
869    o pkg/seaice:
870      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
871        positiveness, modify a few comments and improve variable names,
872      - the changed computation of deltaC affects most seaice-related
873        experiments at the truncation level.
874        seaice_itd.thermo is affected by far the most, with
875        only 7 digits of agreement remaining; update experiments.
876    
877    checkpoint65l (2015/05/04)
878    o pkg/shelfice:
879      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
880        factor drKp1 to zero where it is negative (ie. do not use
881        SHELFICEBoundaryLayer if hFacC>1)
882      - the same for factor drLoc in shelfice_forcing.F
883    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
884        with modules in ptracers, when using testreport option "-small_f"
885    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
886      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
887    o verification/testreport
888      - add new option -small_f
889        with this option testreport first makes the target small_f (*.f files)
890        before running make (all). This is useful for explicit inlining when
891        all sources need to be full available.
892    o pkg/exf/exf_interp.F:
893        remove previous changes related to reverse (decreasing) input grids latitude
894    
895    checkpoint65k (2015/04/01)
896    o pkg/ecco:
897        fix missing cosphi initialization; use eccoiter in place of optimcycle;
898        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
899        instead of active read/write
900    o pkg/ctrl:
901        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
902        instead of active read/write.
903    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
904        return if .NOT.useAUTODIFF
905    o pkg/seaice: add CPP brackets (cost function related).
906    o model/src:
907        add useAUTODIFF run time switch.
908    o pkg/exf/exf_interp.F:
909        add code to allow input grids with latitude starting in the north (i.e. when
910        j=1 corresponds to northern edge of field); modify global_with_exf to test
911        this feature.
912    o verification/testreport:
913      - replace "grep -A3" with POSIX conformal sed command, because there are
914        implementations of grep that cannot do contextual searches
915      - replace "cat -n" by "nl" (two occurrences), because not all implementations
916        of "cat" have the option "-n"
917    o model/src:
918        add new file gsw_teos10.F that contains 3 functions, more or less a copy
919        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
920        convert from conservative to potential temperature. For now they are not
921        called anywhere.
922    o pkg/ggl90: make "useIDEMIX" useful
923      - re-organize code in s/r ggl90_calc a little to move computations that
924        are different for idemix into separate loops (changes verification
925        experiment idemix at truncation level, 12 digits remain -> updated)
926      - requires 2 new 2D fields KappaM, verticalShear
927      - make hFacI and recip_hFacI local 3D variables that are passed to
928        s/r ggl90_idemix
929      - fix and improve some comments
930    
931    checkpoint65j (2015/02/25)
932    o pkg/openad
933      - synchronize seawater.F with version in model/src: replace routine
934        body of sw_temp by calling sw_ptmp and fix/add a few comments.
935    o pkg/mnc:
936      - change default value of pickup_read/write_mnc params to FALSE
937        (since few features are missing in reading MNC pickup files).
938    o model/src:
939      - change default (background) vertical diffusivity for salt to be the
940        temperature (background) vertical diffusivity.
941      - change background vertical diffusivity in vertical mixing pkgs ggl90,
942        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
943        This makes ptracers default diffusivity (that uses salt diffKr) more
944        consistent with vertical mixing schemes.
945    o verification/testreport:
946      - fix typo in "-pcls" option ;
947      - put temp files in /tmp (instead of in local dir)
948      - add option "-ncad" to use genmake2 new option "-nocat4ad"
949      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
950    o pkg/ggl90 (idemix code):
951      - apply few fixes ; add some missing "_d 0" ; update output of exp.
952        global_ocean.90x40x15.idemix
953    o OpenAD
954      - enable active file I/O and begin removal of work-around code
955        for OpenAD for handling control variables (memory vs. active files)
956      - new CPP options file OPENAD_OPTIONS.h
957      - revert to genarr2d gradient check for hs94.1x64x5
958      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
959      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
960    o tools/genmake2:
961      - add option for an alternative Makefile (from Martin) where multiple
962        source files are sent to TAF (instead of all in one file).
963    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
964      - code provided by Carsten Eden as an extension of ggl90
965      - so far the code is turned on within ggl90 by setting a CPP-flag at
966        compile time; a runtime flag implementation is not yet complete
967      - tested in new verification experiment global_ocean.90x40x15.idemix
968    o verification:
969      - reduce length of the AD test run by half for experiments
970        global_ocean.cs32x15 (std + thsice) and isomip
971      - enable active file I/O for OpenAD, adjust verifications accordingly
972      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
973    o verification/testreport:
974      - fix two non-POSIX sed statements so that there are no error messages
975        on Mac OS X
976      - replace hostname -s with hostname | sed 's/\..*$//'
977    o model/src/seawater.F:
978      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
979        (following the matlab code), which would have avoided the bug caught
980        by Matt (see below) in the first place
981    o pkg/shelfice:
982      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
983        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
984      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
985        ice-shelf case (i.e., within surface level).
986      - add config summary in shelfice_check.F
987      - remove global variable recip_SHELFICElatentHeat and replace by a local
988        variable recip_latentHeat
989      - introduce diagnostics for friction velocity uStar (in case of
990        SHELFICEuseGammaFrict)
991      - change verification experiment isomip.htd:
992        + start from pickup (as input_ad at nIter0=8640)
993        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
994        + test SHELFICEuseGammaFrict = .TRUE.
995        + test SHELFICEadvDiffHeatFlux = .TRUE.
996    o model/src:
997      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
998        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
999        update output of experiments global_with_exf.yearly and isomip (all 6).
1000    o pkg/shelfice:
1001      - change setting of kTopC to also be zero where there is no ice-shelf.
1002      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
1003        ice-shelf is.
1004      - first attempt to get RealFreshWaterFlux effects: for now, only without
1005        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
1006    o pkg/seaice: add the option to prescribe a fixed thickness PDF
1007      for thermodynamic calculations
1008      - because of divisions of the type 7/7 not exactly equal to 1, this change
1009        affects results of some verification experiments by up to 4 digits:
1010        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
1011        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
1012        adjoint: lab_sea, lab_sea.noseaicedyn
1013        -> updated
1014    
1015    checkpoint65i (2015/01/23)
1016    o model/src:
1017      - change units of frictionHeating field from W to W/m^2
1018      - fix bug in frictional heating from stratospheric drag in
1019        S/R ATM_PHYS_TENDENCY_APPLY_V
1020      - with synchronous time-stepping: move resetting to zero of frictionHeating
1021        field from load_fields_driver.F to thermodynamics.F ;
1022      - add diagnostics for frictional heating.
1023    o model/src & gmredi K3D:
1024      - add frictionHeating field to pickup-files (for synchronous time-stepping)
1025      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
1026      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
1027        and name in pickup file).
1028      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
1029    o model/src:
1030      - move (from ini_forcing.F) initialisation of all arrays in header file
1031        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
1032        (since Nov 2012) with option selectAddFluid=1.
1033    o pkg/shelfice:
1034      - change units (+ document) of newly added field "shelfIceMassDynTendency"
1035      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
1036    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
1037    o pkg/seaice: two new runtime parameters:
1038      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
1039        long overdue
1040      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
1041        parameterization of tensil stress for fast ice (does not do anything yet)
1042    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
1043        for LSR: move checking overlaps out of JFNK-if-block
1044    o pkg/atm_phys:
1045      - move copy of grid and dynamical fields out of atm_phys_driver.F into
1046        new S/R ATM_PHYS_DYN2PHYS.
1047      - fix level height for Linear Free-Surf case (to be consistent with
1048        fixed-in-time pressure levels).
1049    o pkg/mom_common (bottomdrag):
1050      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
1051        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
1052        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
1053    o pkg/shelfice (u/v_drag):
1054      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
1055      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
1056        (now similar to shelfice_u_drag.F)
1057      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
1058        from mom_vecinv.F (similar to mom_fluxform calls).
1059    o pkg/mom_common (bottomdrag):
1060      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
1061      - add options for alternative discretisation of velocity norm in quadratic
1062        bottom drag: averaging of grid-cell-center KE to U.point and V.point
1063        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
1064        improves when averaging only the other component (e.g. vVel for U bottom
1065        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
1066      - add options (bottomVisc_pCell) to account for partial-cell in bottom
1067        friction (no-slip BC) thus getting the true distance from the bottom;
1068        off by default since this also reduces model stability (explicit bottom
1069        friction). Changes produce different machine truncation with linear-drag
1070        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
1071        front_relax (bvp & mxl, 10 & 11 digits).
1072    o model/src & mom pkgs:
1073      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
1074        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
1075      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
1076        just copy level Nr value to level Nr+1.
1077    o doc:
1078      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
1079    o pkg/shelfice:
1080      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
1081        SHELFICE.h: move array shelficemass to init_varia, initialise
1082        from array shelficemassinit, which is set in init_fixed and
1083        has option to be set from file; introduce array
1084        shelficeMassDynTend array, set thru file in init_fixed
1085      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
1086        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
1087        pkg/streamice
1088      - shelfice_thermodynamics.F: call shelfice_step_icemass if
1089        SHELFICEMassStepping = .true.
1090      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
1091    
1092    checkpoint65h (2014/12/17)
1093    o verification/global_ocean.90x40x15, global_ocean_ebm:
1094      - update to generic controls.
1095    o pkg/ctrl:
1096      - ctrl_map_ini_genarr.F: test for igen>0
1097      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
1098      - move gentim2d part of ctrl_map_ini_genarr.F to
1099        new separate routine : ctrl_map_ini_gentim2d.F
1100      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
1101        add time variable weights and cyclic controls (time mean,
1102        seasonal cycle, etc) capabilities to gentim2d
1103    o pkg/ecco:
1104      - move reading of error, conversion to weights from
1105        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
1106    o global_oce_llc90, cs32:
1107      - activte sbo.
1108      - CTRL_SIZE.h : add maxCtrlProc.
1109      - activate the new genctrl capabilities.
1110      - update following reorganization of global_oce_input_fields.tar.gz  
1111    o pkg/ctrl/ctrl_ad_diff.list:
1112      - add missing ctrl_init_rec.f
1113    o tools/OAD_support/keepOriginal:
1114      - add ctrl_init_rec.F
1115    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
1116      - avoid recomputations of xx_gentim2d_dummy.
1117    o momentum diagnostics:
1118      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
1119        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
1120    o pkg/seaice/seaice_lsr.F:
1121      - fix computation of BU/BV, make sure they are non-zero, only necessary
1122        for cubed sphere exchanges and SEAICE_OLx/y>0.
1123        This makes calling s/r fill_cs_corner_rl obsolete (removed).
1124    o verification/global_ocean.cs32x15/input.seaice
1125      - add test for strong implicit coupling and restricted addtive Schwarz
1126        methods for LSR
1127      - update results/output.seaice.txt
1128    o verification/tutorial_global_oce_biogeo:
1129      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
1130        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
1131        update output_adm,_oadm,_tlm.txt
1132    o pkg/dic:
1133      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
1134      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
1135        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
1136    o verification/tutorial_global_oce_biogeo:
1137      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
1138        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
1139        update output_adm,_oadm,_tlm.txt
1140    o eesupp/src:
1141      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
1142        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
1143    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
1144      LSR (following Hutchings et al. 2004)
1145      - introduce zetaZ as a global variable (requires adjustments in
1146        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
1147        in seaice_calc_viscosities.F
1148      - new flag SEAICEuseStrImpCpl (default off)
1149      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
1150        momentum equations
1151      - JFNK-solver (preconditioner) adjusted to allow using this method
1152        (where it does not have any positive effect)
1153    o pkg/seaice
1154      - add overlap for restrictive additive Schwartz method also to LSR, but
1155        turn it off by default (because it only seems to work for non-cubed
1156        sphere/llc topologies)
1157    o pkg/autodiff
1158      - add extra exchanges in addummy_in_steppging also for mnc output
1159    o pkg/seaice:
1160      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
1161        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
1162    o pkg/obcs:
1163      - add option to specify domain-connected piece Id along OB though files
1164        (for now, only used to diagnose PhiVel; default =1 -> global correction)
1165      - modify obcs_diag_balance.F to process each connected-part separately;
1166        exclude OB where Id = 0 but keep the full divergence there (-> constant
1167        Psi along this portion of OB and all inflow derived from grad(Phi))
1168      - add example of OB-conect files in verification/so_box_biogeo/input.
1169    o pkg/diagnostics:
1170      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
1171      a) use non zero matrix element across OB and solve for Phi 1 grid point
1172         outside OB (i.e, where tracer OBCS are applied).
1173      b) global imbalance of inFlow/outFlow across OB: instead of modifying
1174         velocity across OB, spread it uniformly along the OB in the RHS.
1175    
1176    checkpoint65g (2014/11/19)
1177    o pkg/diagnostcis:
1178      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
1179    o pkg/my82,pp81,kl10:
1180      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
1181        field diffKr as background diffusivity to set minimum diffusivity value.
1182    o pkg/seaice:
1183      - add new parameter SEAICEuseEVPrev (for revisited EVP by
1184        Bouillon et al 2013)
1185      - add SEAICE_evpAlpha/Beta to namelist
1186      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
1187        involve trivial re-ordering of divisions/multiplications that should not
1188        have any effects, but ... they do change the results of lab_sea.hb87 so
1189        that only 2 digits of agreement remain, in line with the general
1190        instability/fragility of the evp-code. For now, I do not care and just
1191        update the verification experiment
1192    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
1193      - remove xx_genarr2d_numsmooth etc
1194      - use xx_genarr2d_preproc etc instead
1195      - carry out smooth_correl2D at initialization stage rather than during
1196        time stepping.
1197      - get smoothOpNb from xx_gentim2d_preproc
1198    o global_oce_cs32 :
1199      - add test of generic ecco capabilities.
1200    o pkg/exf/exf_getsurfacefluxes.F :
1201      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
1202    o pkg/ctrl,ecco :
1203      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
1204        is defined.
1205    o pkg/seaice: add diagnostics for Delta (deformation parameter)
1206    o model/src:
1207      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
1208        diffusivity (background) is specified but ignored.
1209    o verification:
1210      - in testreport, convert hostname to lower case for default output dir name
1211    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
1212    o pkg/dic: add modifications from Hajoon:
1213      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
1214      - light attenuation: add self-shading effect by climatological Chlorophyll
1215        (read from file).
1216    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
1217        compiles when SEAICE_ALLOW_DYNAMICS is undefined
1218    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
1219        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
1220        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
1221        approach where CPP_OPTIONS.h includes an omnipotent
1222        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
1223    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
1224        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
1225    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
1226        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
1227        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
1228    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
1229      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
1230      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
1231      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
1232      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
1233    o pkg/ctrl,ecco,exf :
1234      - remove variables associated with NON-generic costs,
1235        unless ECCO_CTRL_DEPRECATED is defined.
1236      - remove NON-generic NON-obcs controls,
1237        unless ECCO_CTRL_DEPRECATED is defined.
1238    o pkg/ctrl : added ctrl_local_params.h
1239    o pkg/ecco : added ecco_local_params.h
1240    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
1241        experiments, which will progressively be removed once the
1242        experiments are revised to use only generic controls/costs.
1243    
1244    checkpoint65f (2014/10/13)
1245    o pkg/ctrl, ecco, seaice : minor changes in headers
1246    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
1247        cost function and control capabilities added since checkpoint65c.
1248    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
1249    o pkg/ecco: increase modularity and improve logic
1250      - ecco_toolbox.F (new) : basic operations that are often used,
1251        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
1252        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
1253      - cost_gencal.F (new) : determine filnames and records.
1254      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
1255      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
1256        and exploit the above functions leading to more compact code.
1257      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
1258      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
1259        using_ers, using_gfo, using_mdt is now only defined within gencost)
1260    o pkg/ecco: extend generic cost capabilities
1261      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
1262        capabilities via gencost_preproc (+ _c,_i,_r related params),
1263        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
1264        gencost_outputlevel arguments to cost_generic
1265      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
1266        and active_read, making room for gencost_preproc to take effect.
1267        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
1268      - pkg/ecco/cost_generic.F :
1269        compute and store misfit maks*(model-data) in localdif that is
1270        then used in cost and for output, output misfit if outlev.GT.0
1271      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
1272        rather gencost_barfile for deciding whether to write barfile
1273      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
1274      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
1275        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
1276      - pkg/ecco/ecco_summary.F : report gencost variables
1277      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
1278    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
1279    o pkg/ecco: internal re-organization
1280      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
1281        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
1282        mv relevant variables definition from ecco_cost.h to ecco.h,
1283        make sure gencost routines only include ecco.h)
1284      - throughout : add missing CCP switches, rm unused variables,
1285        and rm un-necessary CPP switches
1286      - throughout gencost routines : replace modelstartdate with
1287        gencost_startdate when needed
1288      - cost_bp_read.F : use arguments, instead of common blocs
1289        so that it can be used also by (new) cost_gencost_bpv4.F
1290      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1291      - ecco_phys.F : compute etanFull
1292      - ecco_readparms.F : rename using_topex as using_tpj, add
1293        bpv4-grace to gencost list, initialize added parameters
1294      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
1295    
1296    checkpoint65e (2014/09/28)
1297    o pkg/obcs:
1298      - replaced the just-added CPP options with run-time variables
1299        (see pkg/obcs/OBCS_PARAMS.h for details)
1300    o pkg/obcs:
1301      - add additional CPP options for sponge boundary layers
1302        (see pkg/obcs/OBCS_OPTIONS.h for details)
1303    o pkg/atm_phys:
1304      - implement simple (obliquity only, assuming circular planet orbit)
1305        seasonal cycle for incoming insolation ; used when run-time parameter
1306        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1307    o pkg/exf, pkg/ecco, pkg/ctrl:
1308      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1309      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1310      - implement gentim2d for xx_tauu, xx_tauv
1311    o pkg/ctrl, pkg/ecco :
1312      - fix and complement the generic controls implementation
1313    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1314        pkg/shelfice/shelfice_thermodynamics.F,
1315        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1316        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1317      - add weight in CTRL_GET_GEN calls
1318    o pkg/ctrl :
1319      - ctrl_get_gen.F : add weight as input parameter, and apply
1320        it directly rather than using smooth_correl2Dw (to be retired).
1321      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1322    o pkg/ctrl :
1323      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1324        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1325      - re-activate ctrl_summary (call in ctrl_init.F)
1326    o pkg/ctrl/ctrl_cost_gen.F :
1327      - fix CCP brackets, remove un-necessary myiter, mytime
1328    o pkg/ecco, pkg/ctrl :
1329      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1330      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1331      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1332      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1333    
1334    checkpoint65d (2014/09/15)
1335    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1336      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1337        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1338    o pkg/ctrl/ctrl_map_ini_genarr.F :
1339      - remove compilation failure
1340      - replace hard coded example
1341      - use ctrl_map_ini_gen2D, 3D
1342    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1343      - on/off switch based upon xx_genarr2d_weight,3d
1344    o src/packages_init_variables.F :
1345      - regroup pkg/estimation calls
1346      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1347        (moved to ctrl_init_variables)
1348    o cost/cost_init_varia.F :
1349      - remove ecco_cost_init_varia
1350        (moved to ecco_init_varia)
1351    o ctrl/ctrl_init_variables.F :
1352      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1353      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1354    o ctrl/ctrl_map_ini.F :
1355      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1356        (moved to ctrl_init_variables)
1357    o ctrl/ctrl_map_ini_ecco.F :
1358      - remove ECCO_PHYS (mv to ecco_init_varia)
1359      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1360    o ecco/ecco_ad_diff.list :
1361      - add ecco_init_varia.f
1362    o ecco/ecco_init_varia.F
1363      - new routine
1364    o pkg/streamice:
1365      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1366        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1367      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1368    o pkg/generic_advdiff:
1369      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1370    o pkg/exf:
1371      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1372         xxg_precip capability
1373      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1374    o pkg/ctrl:
1375      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1376    o model/src/load_fields_driver.F :
1377      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1378        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1379    o OpenAD verification experiments:
1380      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1381        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1382        for now, only in pkgs used in OpenAD verification experiments.
1383      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1384        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1385        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1386        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1387    o OpenAD verification tests:
1388      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1389      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1390        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1391      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1392        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1393    o model/src & generic_advdiff:
1394      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1395        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1396        dynamics requires valid tracer forcing only over tile interior but, for
1397        some diagnostics, may need to extend it over 1 point in tile halo region.
1398      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1399        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1400        setting in temp/salt/ptracer_integrate.F
1401    o pkg/dic:
1402      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1403        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1404        in gchem_forcing_sep.F
1405    o pkg/autodiff & obcs:
1406      - add storage of current OB values for U & V (was already done for T & S).
1407    
1408    checkpoint65c (2014/08/30)
1409    o pkg/dic:
1410      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1411        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1412        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1413    o verification:
1414      - new experiment testing OBCS and DIC pkgs, using params & output from
1415        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1416        passage: take OBCS from the last year of a 2 yrs simulation and initial
1417        conditions from t=1.yr while keeping the same forcing.
1418    o model/src:
1419      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1420        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1421    o pkg/diagnostics (Stats-Diags):
1422      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1423        a) refine region where stats are computed, excluding where arrhFac=0 ;
1424        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1425        c) extend regional stats over the region edges (for U or V pt location).
1426    o pkg/gchem:
1427      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1428        pkg/dic is currently changing/updating ptracers values beyond the OB).
1429    o verification (hs94):
1430      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1431        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1432        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1433        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1434    o pkg/ptracers:
1435      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1436        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1437      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1438        with AB-2 code (so that it get tested).
1439    o model/src:
1440      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1441        with AB-2 code (previously only available with AB-3 code).
1442        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1443        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1444        there, by calling CYCLE_AB_TRACER).
1445    o pkg/generic_advdiff:
1446      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1447        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1448        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1449        S/R temp/salt/ptracers_integrate.F
1450    o model/src & pkg/ptracers:
1451      - remove common block variables gT,gS (in DYNVARS.h), except when
1452         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1453      - remove common block variable gPtr.
1454    o model/src & pkgs:
1455      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1456         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1457         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1458         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1459      + change accordingly all calling S/R.
1460      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1461        in S/R temp/salt/ptracers_integrate.F
1462    o pkg/seaice:
1463      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1464        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1465      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1466        in seaice_lsr
1467      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1468        in s/r seaice_lsr_calc_coeffs
1469    o pkg/mdsio:
1470      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1471        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1472        too long (e.g., > MAX_LEN_FNAM/2 )
1473    
1474    checkpoint65b (2014/08/12)
1475    o pkg/matrix:
1476      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1477    o model/src:
1478      - fix initialisation of geothermalFile; compile geothermal-flux code in
1479        natl_box verification experiment.
1480    o model/src & pkg/down_slope:
1481      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1482      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1483        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1484        results at machine truncation level: update output of experiments
1485        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1486    o pkg/diagnostics (Stats-Diags):
1487      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1488        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1489        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1490        times (but Min,Max and StD are still wrong).
1491    o model/src:
1492      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1493        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1494    o model/src:
1495      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1496        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1497        arrays are already updated while adjustments (filters, conv.adjustment) are
1498        still applied later, in S/R TRACERS_CORRECTION_STEP.
1499    o model/src:
1500      - store in common bloc array "rhoInSitu" the virtual potential temperature
1501        anomaly that is used to compute geopotential: this make the atmos code
1502        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1503    o pkg/seaice/seaice_lsr.F
1504      - rename integer variable ilcall to ipass (that's what it is called
1505        in the residual diagnostics
1506      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1507        default) for improved non-linear convergence of the first few steps
1508      - adjust a few comments and add new ones to explain some of the store
1509        directives
1510    o pkg/generic_advdiff (& ptracers):
1511      - re-work the code to check for valid advection scheme and for minimum
1512        size of overlap (now stored in local common bloc in gad_advscheme.F)
1513    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1514      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1515      - add an auxilliary variable "bet" and fix store directives and keys in
1516        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1517        less exact gradients in my tests); but there are still
1518        recomputation warning (although gradients are sort of OK), when
1519        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1520        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1521      - update verification experiments lab_sea.
1522      - change some comments in S/R seaice_calc_viscosities
1523    o model/src:
1524      - if staggerTimeStep=T, always apply exchange to velocity field in
1525        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1526        (independent of using multi-dim advection or not); no effect on FWD run
1527        but affects AD results (at machine truncation level): update output of
1528        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1529        and isomip (oad: 12.d).
1530    o pkg/generic_advdiff:
1531      - stop if doAB_onGtGs is set to FALSE but ignored
1532      - refine warning related to stability of tracer time-stepping
1533        regarding internal wave dynamics.
1534      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1535        on staggerTimeStep & implicitIntGravWave (will now get a warning
1536        if potentially unstable).
1537    o pkg/kl10:
1538      - add new pkg "kl10" for mixing due to internal wave breaking, from
1539        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1540        (contribution from Jody Klymak), tested in verification experiment
1541        verification/internal_wave/input.kl10/
1542    o isomip experiment:
1543      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1544        (input.htd) and update the output.
1545    o cd_code experiments:
1546      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1547        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1548        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1549        update the corresponding output.
1550    o pkg/seaice:
1551      - reduce the number of include files and store directives in
1552        S/R seaice_lsr_tridiagu/v
1553      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1554        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1555        get rid off one store directive (a TAF bug?)
1556      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1557        S/R seaice_lsr_tridiagv to change the loop range for consistency
1558      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1559      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1560        S/R seaice_lsr_tridiagu/v (requires update of
1561        offline_exf_seaice/input.dyn_jfnk)
1562    
1563    checkpoint65a (2014/07/27)
1564    o model/src:
1565      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1566        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1567        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1568        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1569    o model/src:
1570      - collect momentum forcing tendency into local 2-D array (passed as argument
1571        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1572        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1573        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1574      - collect T & S forcing tendency into local 2-D array (passed as argument to
1575        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1576        affects results at machine truncation level (e.g., ocean: if using
1577        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1578        correction due to vertical advection).
1579      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1580        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1581        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1582        obcs_ctrl (ad & fwd grd @ 12 & 7).
1583    o pkg/ptracers & diagnostics:
1584      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1585        title (to avoid some unexpected truncation); sort out ptracers diags units.
1586      - collect ptracer forcing tendency into local 2-D array (passed as argument
1587        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1588    
1589    checkpoint65 (2014/07/18)
1590    o pkg/fizhi:
1591      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1592        affects results at machine truncation level. Update output of experiments
1593        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1594    o pkg/seaice: more clean up
1595      - rename TAF common block tapes to be more consistent and remove
1596        unnecessary duplicates
1597      - add store directives to remove more recomputations, but use smaller
1598        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1599        The idea behind this flag is to reduce the memory footprint when the
1600        adjoint of the LSR is not required. As of now, defining the flag
1601        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1602        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1603        For experiment offline_exf_seaice, this means on a linux box with gfortran
1604        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1605        this experiment):
1606        > size mitgcmuv_ad
1607        text    data        bss     dec        hex
1608        5100659 1216  220458952  225560827  d71c8fb
1609        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1610        but only a moderate increase of 36% for global_ocean.cs32x15:
1611        text    data        bss     dec        hex
1612        6695027 1648 1014578664 1021275339 3cdf6ccb
1613        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1614      - note: there are still recomputations in global_ocean.cs32x15 and
1615        offline_exf_seaice and the gradient agreement changes (gets a
1616        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1617      - in general, the AD gradients still are wrong
1618    o OpenAD
1619      - clean up code_oad/ directories somewhat by moving files
1620        dontCompile, dontTransform, keepOriginal to OAD_support/
1621    o model/src:
1622      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1623        (not currently tested): add dissipation terms before NLFS rescaling of
1624        tendencies (previously done after).
1625    o pkg/diagnostics:
1626      - write stats-diags in ascii file with more digits (same as in monitor).
1627    o pkg/down_slope:
1628      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1629        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1630    o model/src:
1631      - new file "apply_forcing.F" containing all the code previously in
1632        external_forcing.F, but with new argument list: pass, as new argument,
1633        the current level tendency array to update (instead of a direct update
1634        of the common bloc array). Change the corresponding calls.
1635      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1636        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1637    o pkg/seaice/seaice_lsr, a little bit of clean up
1638      - rearrange some code blocks, so that now all calculations for
1639        setting up the right-hand-sides done within one single block
1640        (I find that easier to read and understand)
1641      - rearrange freedrift-code to reduce the number of ifdefs
1642      - adjust some indentations and comments
1643    
1644    checkpoint64z (2014/07/10)
1645    o model/src and several pkgs:
1646      - change argument list of all S/R called from external_forcing.F and
1647        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1648        to pass, as argument, the current level tendency array to update
1649        (instead of a direct update of the common bloc array).
1650      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1651      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1652    o pkg/seaice/seaice_lsr.F
1653      - always initialize local arrays in seaice_lsr_tridiagu/v
1654      - add more local tapes to seaice_lsr_tridiagu/v
1655      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1656        keep it in bi/bj loop; this seems to be essential
1657      - gradients are still wrong but only by 4-7 orders of magnitude
1658        instead of 15 orders of magnitude, lab_sea improves a little
1659    o pkg/seaice
1660      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1661        generates unnecessary code in seaice_lsr_ad
1662      - add more store directives in seaice_lsr to avoid unnecessary code
1663        in seaice_lsr_ad
1664      - exclude some residual computations in seaice_lsr when
1665        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1666        in seaice_lsr_ad
1667      - add more storing, a new tape (model/src/the_main_loop.F) and
1668        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1669        and klockey should be checked by a specialist)
1670      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1671        and update lab_sea after previous changes in pkg/seaice below
1672    o pkg/autodiff:
1673      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1674        viscFacInAd : run time parameters allowing for adjoint switches
1675        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1676    o pkg/ecco:
1677      - introduce cost_gencost_boxmean.F that computes a box mean
1678        temperature (for use in adjoint sensitivity studies).
1679    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1680    o pkg/mom_common/mom_calc_visc.F:
1681      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1682    o pkg/seaice/seaice_summary.F:
1683      - statement for SEAICEadjMODE now in autodiff_readparms.F
1684    o pkg/seaice:
1685      - remove some store directives and add new ones in an effort to get
1686        finally rid off the recomputation warnings. This is successful
1687        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1688        defined (i.e. no extensive recomputation warnings left), but there
1689        are still too many recomputations on the solver iteration level
1690      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1691      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1692        SEAICE_SIZE.h
1693      - add a store directive in S/R seaice_calc_viscosities
1694    o pkg/seaice (ITD code):
1695      - fix definition of Hlimit for multi-threaded case
1696      - use double precision arithmetic to compute Hlimit: this affects results;
1697        update output of experiment seaice_itd.
1698    o replace content of verification/seaice_itd
1699      - instead of a 1D column use the configuration of offline_exf_seaice
1700        to test the ice thickness distribution code with ridging
1701      - this is a first shot at this experiment
1702      - change of some defaults of ridging parameters SEAICEhStar (from
1703        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1704        and lot of new comments.
1705    
1706    checkpoint64y (2014/06/20)
1707    o pkg/seaice/seaice_reg_ridge.F:
1708      - modify the regularization of very small volumes of ice; only check
1709        total volume HEFF, and do not apply correction to individual ice
1710        classes because that leads to funny patterns in the heat and fw-fluxes
1711        into the ocean. Adjust seaice_itd/results/output.txt
1712      - replace nITD by SEAICE_multDim in loop-ranges
1713    o pkg/exf:
1714      - add code to process the case field period = -12. with UV interpolation.
1715      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1716        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1717    o verification/global_with_exf:
1718      - switch all fields period to -12. (was previously untested) in input/data.exf
1719        (but keep secondary test ".yearly" unchanged); update the reference output.
1720    o pkg/cal:
1721      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1722    o pkg/exf:
1723      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1724        to replace logical switch "exf_verbose"
1725      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1726    o pkg/sbo:
1727      - update from Katherine Quinn: evaluate mass directly from density and SSH
1728        (budget using Finite Volume method) instead of from bottom pressure.
1729      - allow testreport to collect few selected SBO output ; tested in exp.
1730        global_ocean.90x40x15 (after updating the results, to include SBO output).
1731      - fix some multi-threading issues (in output part).
1732    o model/src & most packages:
1733      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1734      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1735        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1736        "data.{pkg}" exist ; and leave the S/R (return) just after.
1737      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1738        + call LAND_READPARMS from packages_readparms.F
1739    o pkg/seaice:
1740      - remove code that resets useThSice in S/R seaice_readparms and
1741        replace it by a warning in S/R seaice_check
1742      - remove parameter MULTDIM, replace with nITD and runtime
1743        parameter SEAICE_multDim (still hard-wired to nITD if
1744        SEAICE_ITD is defined)
1745    
1746    checkpoint64x (2014/05/24)
1747    o verification/lab_sea:
1748      - update adjoint and TLM output following changes to pkg/salt_plume
1749      - un-do the update after putting back local recip_Cp in few places.
1750    o pkg/salt_plume: modifications by An Nguyen:
1751      - add capability to do brine rejection (salt-plume) as function of
1752        volume+tracers (instead of only salinity tracer).
1753      - conserve volume by exchanging volume from each kLev to above to
1754        accommodate in-coming brine volume
1755      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1756      - switch KPP surf buoyancy due to brine forcing to 3-d
1757        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1758      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1759      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1760        in East/West Arctic.
1761    o pkg/sbo:
1762      - incorporate modifications from Katherine Quinn to enable the use of sbo
1763        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1764        output for future testreport verification (unfinished).
1765    o pkg/atm_phys:
1766      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1767        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1768        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1769    o pkg/seaice
1770      seaice_calc_ice_strength.F: modify expression to avoid divisions
1771        (affects truncation)
1772      seaice_do_ridging.F: clean up the insectarium
1773      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1774      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1775      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1776      - add some debugging information and error messages (warnings)
1777    o model/src: modifications relatd to atmosphere p*:
1778      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1779      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1780        of vertical profile tRef in geopotential background and anomaly.
1781      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1782        and pkg/atm_phys.
1783      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1784        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1785    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1786    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1787        not used right now, but can be used in BGC packages to fix conservation.
1788    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1789        other packages too.
1790    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1791        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1792    o model/src:
1793      - since we have several heat capacity (even in model/src), define "recip_Cp"
1794        as local variable (no longer in common block) to avoid any confusion.
1795      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1796    o pkg/exf:
1797      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1798        air density as function of air Temp, Humidity and atm pressure.
1799    
1800    checkpoint64w (2014/05/02)
1801    o verification:
1802      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1803        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1804        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1805        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1806        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1807    o model/src: for atmosphere in p* coords:
1808      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1809      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1810        but not yet activated.
1811    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1812      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1813      - this changes the results (but not for any verification experiment, because
1814        none tests this), but avoids having an extra field in the restart files
1815    o pkg/seaice: remove global variable TICE (not needed)
1816      - replace by TICES or local variable where necessary (cost_seaice_test,
1817        seaice_diagnostics_state)
1818      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1819      - use specific read/write routines for reading and writing individual leves
1820        of a multilevel field
1821    o pkg/ctrl & model/inc:
1822      - move additional anomaly fields of control vars (related to options:
1823         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1824        from DYNVARS.h into new header file: CTRL_FIELDS.h
1825    o pkg/seaice: some small modifications to the ridging code
1826      - make fw2ObyRidge a global variable and add the freshwater flux to
1827        seaice_growth
1828      - pass actual thickness from seaice_prepare_ridging, so that it is
1829        computed only in one place and compute it in the same way as in
1830        seaice_growth
1831      - initialise more fields in seaice_do_ridging that where cause floating
1832        point exceptions over land
1833    o pkg/seaice: preparations for ridging code and first real ridging code
1834      - move most of "PART 1" of S/R seaice_growth into a new and separate
1835        S/R seaice_reg_ridge that will both regularize the state variable after
1836        advection call the actual ridging routine;
1837      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1838        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1839      - remove ridging code from seaice_advdiff
1840      - clean up remaining part 1 of seaice_growth in an attempt to make it
1841        more readable (this is probably subjective)
1842      - call seaice_itd_redist once in the initialisation phase to have the initial
1843        conditions in the correct category
1844      - finally: add new ridging routine for ITD code
1845    
1846    checkpoint64v (2014/04/11)
1847    o pkg/ecco:
1848      - add runtime parameters mdt[start,end]date[1,2]
1849      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1850    o pkg/seaice:
1851      - make deltaC a global variable, so that it can be used in ridging code
1852      - first step towards ridging: introduce new routines that compute
1853        ice strength based on ridging parameters
1854      - add diagnostic for HSNOWITD
1855      - add opnWtrFrac as a global variable (required for ridging scheme)
1856    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1857      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1858        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1859    o verification/hs94.1x64x5:
1860      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1861      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1862    o autodiff:
1863      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1864        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1865        For now, only in pkgs used in verification/hs94.1x64x5.
1866      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1867        which are specific to TAF/TAMC).
1868      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1869        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1870        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1871      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1872        building mitgcmuv_ad (make adAll).
1873    o pkg/ecco:
1874      - cost_gencost_seaicev4.F:
1875         reformulate proxy cost as function of sst and local param SEAICE_freeze
1876         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1877      - add stop statement if old names siv4-[sst,vol] are used
1878      - add snapshots + cost reports for atmospheric longwave
1879      - remove factor 0.1 in front of wtau[u,v]
1880      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1881         ALLOW_TMI_SST_COST_CONTRIBUTION
1882    o pkg/atm_phys:
1883      - add some diagnostics for Short-wave and for convection S/R.
1884    o pkg/seaice/seaice_growth:
1885      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1886        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1887      - rearrange loop order for better vector code in the same code block
1888      - rewrite the floeDiameter formula to have fewer divisions
1889      -  (miraculously) none of this changes the results of seaice_itd
1890    o pkg/smooth:
1891      - move param smooth2Ddiffnbt to pkg/ecco
1892    o pkg/salt_plume:
1893      - salt_plume_frac.F:
1894         clean up local param names
1895         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1896    o pkg/rw:
1897      - add RS version of S/R READ_MFLDS_LEV.
1898    o pkg/streamice:
1899      - fix the restart test by writing/reading pickup_streamice files.
1900    o pkg/seaice:
1901      - refine checks for jfnk-related parameters
1902      - comment out if statement with SEAICEuseIMEX parameter as long as there
1903        is no IMEX code to avoid confusion and surprises
1904    
1905    checkpoint64u (2014/03/07)
1906    o verification/MLAdjust:
1907      - rename secondary test suffix:
1908         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1909         0.leithD -> AhFlxF  + switch to flux-form
1910         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1911         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1912    o pkg/mom_vecinv:
1913      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1914        to be before mom_calc_visc.F)
1915      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
1916      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
1917        this is simpler for the adjoint and for diagnostics.
1918    o model/src + pkg/momentum:
1919      - add input files for  2-D additional Western and Southern cell-edge wall
1920         (e.g., to add "thin-wall" where it is =1).
1921      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
1922        using 2nd hFacZ that is computed from initial (fix domain) hFac
1923      - known limitations of thin wall implementation: not yet coded for sigma
1924        coords; not working with CD-scheme neither.
1925    o pkg/seaice:
1926      - rename recently introduced parameters from (wrong name) AB to
1927        BDF (backward difference time discretisation)
1928      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
1929    o tools/adjoint_options:
1930      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
1931    
1932    checkpoint64t (2014/02/01)
1933    o pkg/ecco
1934      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
1935        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
1936      - replace hard-coded record number and period which only work for monthly
1937        with read-in runtime param that works for other periods (month,day,year)
1938    o pkg/thsice
1939      - corrected store directive fixes thsice adjoint gradient checks
1940    o genmake2 & testreport:
1941      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
1942        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
1943        Update testreport accordingly. No need to set "export OPENAD=true"
1944        in adjoint_options/adjoint_oad anymore (will be removed later).
1945    o pkg/shelfice:
1946      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
1947        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
1948        so that surface forcing applies to k=kSurf if using pkg/shelfice.
1949    o pkg/ctrl, pkg/grdchk, pkg/ecco:
1950      - Changes to make GENARR more modular (i.e. invisible if not used)
1951    o model/src/temp_integrate.F and salt_integrate.F
1952      - re-include store directives that were removed on Dec 27th.
1953    o model/src/external_forcing_surf.F
1954      - add storage directives for EmPmR and PmEpR to avoid recomputation of
1955        seaice_model in the adjoint that is problematic when seaice_model is
1956        turned off in the adjoint. The resolved issue dated back to July when
1957        EXTERNAL_FORCING_SURF call was moved.
1958        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
1959    o pkg/exf/exf_check.F
1960      - fix a small bug again (originally found by Wentao Liu, now found again)
1961      - streamline error output
1962    o pkg/streamice and aim_v23:
1963      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
1964        Apple's /usr/bin/cpp knows what to do:
1965        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
1966        Target: x86_64-apple-darwin13.0.0
1967    
1968    checkpoint64s (2014/01/05)
1969    o tools/adjoint_options:
1970      - switch to fastopt.net TAF server (instead of default fastopt.de) for
1971        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
1972    o model/src:
1973      - remove some unnecessary TAF storage directives in forward_step.F and
1974        in dynamics.F (note: not always removed by TAF, e.g., double storage
1975        of kappaRU,kappaRV in former version of dynamics.F).
1976    o model/src & pkg/ptracers:
1977      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
1978        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
1979        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
1980      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
1981      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
1982      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
1983    o useSingleCpuInput separates single-CPU input from single-CPU output;
1984        for now only implemented for in exf_interp_read.F
1985    o verification/advect_xy:
1986      - fix missing EXCH call in local version of ini_salt.F and update output.
1987    o momentum diagnostics:
1988      - fix which deltaT is used in Total-Tendency diagnostics.
1989      - fix typo in diagnostics for momentum tendency from AB.
1990    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
1991        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
1992    
1993    checkpoint64r (2013/12/08)
1994    o verification/*/results:
1995      - Update reference output of experiments that were passing with just 13 digits
1996         (make it easier to detect future changes in results)
1997    o model/src & pkg/ptracers:
1998      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
1999        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
2000        to inside ptracers_integrate.F ; remove ptracers_advection.F
2001    o coupling interface pkgs:
2002        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
2003      - change the config check to test the agreement of Ocean Depth
2004        with ATM land/sea mask (instead of ATM orography);
2005      - send to coupler the number of coupler time-steps to do for this run:
2006        this allows to check for consistency and don't need anymore to be
2007        specified in parameter file "data";
2008      in coupler:
2009      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
2010      - improve report to log-file of config setting (pass log-file unit to few S/R)
2011    o pkg/compon_communic:
2012      - add coupling send/receive for non-tiled integer vector;
2013      - add S/R to check and stop if any proc has an error (similar to
2014        eesupp/src/stop_if_error.F but single thread and across Comm_World).
2015    o pkg/exch2:
2016      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
2017        through list of all tiles my proc owns.
2018    o model/src:
2019      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
2020        from rTrans) to simplify dependencies (no need to store rTrans anymore in
2021        calling S/R); this affects AD results at machine truncation level:
2022        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
2023        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
2024    o tools/build_options:
2025      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
2026    o coupling interface pkgs:
2027        [compon_communic, atm_compon_interf & ocn_compon_interf]
2028      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
2029        to each S/R that needs it; remove un-used variables.
2030      - change component tile registration (cpl_register.F in both compon_interf
2031        and mitcomponent_tile_register.F) to pass the full list of tiles
2032        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
2033      - with pkg/exch2: adopt the same convention used for I/O to define mapping
2034        towards coupler global array (unless W2_useE2ioLayOut=F):
2035         a) can now use different tiling between atm & ocn comp.
2036         b) no needs to modify the run-Off map when changing tiling (was needed
2037            even if using the same tiling between atm & ocn).
2038         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
2039            full land tiles); not yet tested.
2040      - check for valid mapping from comp. tile to coupler global array
2041      - improve report of tile registration results to log file.
2042    o pkg/exch2:
2043      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
2044        tile-registration (CPL_REGISTER);
2045      - activate (un-comment) definition and setting of "W2_tileIndex" list to
2046        store the local bi,bj indices of each tile;
2047      - also print bi,bj in local report to log file;
2048      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
2049        Jun 2009 modif of pkg/exch2).
2050    o testing on baudelaire:
2051      - run 2 tests at a time: no significant slow down (since enough cpu) and
2052        get the full set of test done earlier
2053      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
2054    o model/src/thermodynamics.F and routines called from it:
2055      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
2056        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
2057        velocity (outp) by adding bolus velocity.
2058      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
2059        mass transport from velocity + lateral grid cell area
2060      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
2061      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
2062     in thermodynamics.F
2063      - remove k from thermodynamics.F and move it to temp_integrate.F
2064        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
2065        loop).
2066      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
2067        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
2068        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
2069        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
2070      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
2071        global_ocean.90x40x15, tutorial_global_oce_biogeo and
2072        tutorial_tracer_adjsens (+ TLM output).
2073    o tools/OAD_support and (verification/*/) code_oad:
2074      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
2075        module conversion ; remove unneeded CPP_EEOPTIONS.h.
2076      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
2077        version (closer to model/inc/CPP_OPTIONS.h).
2078    o model/src:
2079      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
2080        retired list of parameters (routine FREEZE has been replace by surface
2081        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
2082    o pkg/gmredi:
2083      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
2084        velocity (same scheme but affects machine truncation) for GM_AdvForm.
2085      - update output of FWD experiments: front_relax.bvp,
2086        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
2087    
2088    checkpoint64q (2013/11/17)
2089    o verification:
2090      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
2091        tutorial_global_oce_biogeo and global_ocean.90x40x15.
2092      - generate new output (growth & melt) for seaice_itd experiment after
2093        updating the input pickup_seaice files (previously wrong).
2094    o pkg/cost:
2095      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
2096        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
2097        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
2098          cannot be applied to var in common block).
2099        o allows to get results independent of tile-per-proc setting (if using
2100          slower GLOBAL_SUM_SEND_RECV option).
2101      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
2102        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
2103        forward gradients: update output).
2104      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
2105        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
2106    o pkg/mom_common:
2107      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
2108        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
2109        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
2110        ensure that all field value that are used are set.
2111    o tutorial_deep_convection (smag3d):
2112      - add missing scaling in mom_calc_smag_3d.F;
2113      - set smag3D_coeff in input.smag3d such that results do not change.
2114    o pkg/dic:
2115      - change dic_cost.F to compute cost on each tile first and then apply
2116        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
2117        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
2118      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
2119    o eesupp/src & pkg/mdsio:
2120      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
2121        (from pkg/mdsio) since they are no longer used for tape IO.
2122      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
2123        (+ keep a copy in pkg/atm_ocn_coupler).
2124    o verification/isomip:
2125      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
2126    o tools/build_options:
2127      - optfile linux_amd64_ifort11, fast (no ieee) case:
2128        to get a working restart for all experiments, add "-fp-model source"
2129        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
2130    
2131    checkpoint64p (2013/10/20)
2132    o pkg/autodiff:
2133      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
2134        criteria, return to simple (default) tape IO format.
2135    o pkg/mdsio (+ eesupp/src):
2136      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
2137        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
2138      - fix globalFile and singleCpuIO options using simpler global mapping.
2139      - new pairs of scatter/gather vector S/R (one for each type, generated from
2140        template) corresponding to simpler global mapping.
2141      - adread_write.F: switch to new S/R (but leave old calls commented) and write
2142        to globalFile when parameter globalFiles is set to True.
2143      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
2144    o pkg/autodiff:
2145      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
2146        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
2147        missing, just add a STOP if array type do not match.
2148    o pkg/exf:
2149      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
2150         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
2151         and rename array obsSIce to exf_iceFraction.
2152    o tutorial_deep_convection:
2153      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
2154        for now all in this exp. code dir.
2155      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
2156        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
2157    o eesupp/src:
2158      - added SINGLE_DISK_IO option because reading of parameter files on
2159        very large number of processors did not work with existing set-up
2160    
2161    checkpoint64o (2013/09/25)
2162    o pkg/atm_phys & atm_compon_interf:
2163      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
2164    o tools/build_options:
2165      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
2166        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
2167        remove CPP setting (was identical to genmake2 default).
2168    o pkg/gmredi & model/src: Some updating and work done on the residual model.
2169      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
2170      - fixed up the calculation of the eddy stress and how it is added to the
2171        external forcing via taueddy_external_forcing.F
2172      - at the moment, it is very experimental and only works with the variable eddy
2173        diffusivity calculated in gmredi_k3d.F
2174    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
2175        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
2176    o testreport (& tools/do_tst_2+2):
2177      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
2178    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
2179      - remove CPP='cpp -traditional -P' (this is genmake2 default)
2180      - add switch (for big setups) to use 'medium' memory-model (but leave it
2181        commented out for now). Note: needed with FC 19 to compile big setups.
2182    o pkg/atm_compon_interf:
2183      - regroup per field origin (model & pkgs) the coupling storage routines
2184         (which accumalate in time each coupling field)
2185      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
2186        update accordingly + simplify aim_do_physics.F
2187    
2188    checkpoint64n (2013/08/26)
2189    o pkg/bbl:
2190      - update formulation to reduce dispersion of tracer properties in bbl
2191      - replaced horizontal and vertical transport parameters with velocities
2192      - changes results for verification/global_with_exf.yearly
2193    o verification/halfpipe_streamice:
2194      - change to matrix construction; update both Fwd & AD output.
2195    o verification/tutorial_tracer_adjsens:
2196      - OpenAD test: switch to vector-invariant momentum since fluxform with
2197        rStar causes problems with OpenAD; update output.
2198  o tools:  o tools:
2199    - genmake2: define a common prefix for all temp-file names ; allow to move    - genmake2: define a common prefix for all temp-file names ; move them
2200      them to local /tmp disc (but commented out for now);      to local /tmp disk (but would be easy to move them back);
2201    - xmakedepend: add the same switch for temp-files (but commented out).    - xmakedepend: apply the same switch for temp-files.
2202  o pkg/offline:  o pkg/offline:
2203    - changes for usewith rStar (NLFS): assume that we continue to provide    - changes for use with rStar (NLFS): assume that we continue to provide
2204      UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid      UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
2205      output files) and apply r* scaling at each time-step (function of the time      output files) and apply r* scaling at each time-step (function of the time
2206      varying Eta field); use normal pickup files (needed for restart with NLFS).      varying Eta field); use normal pickup files (needed for restart with NLFS).

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