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revision 1.1950 by dimitri, Thu Dec 19 01:06:09 2013 UTC revision 1.2330 by jmc, Tue May 9 03:25:45 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 useSingleCpuInput separates single-CPU input from single-CPU output  o pkg/seaice:
8  o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the    - remove (comment out) diagnostics SIuwind,SIvwind,SIfu,SIfv (duplicate of
9    SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8      EXFuwind,EXFvwind,oceTAUX,oceTAUY) and point them to their equivalent.
10      - add diagnostics of wind-stress over seaice (SItaux,SItauy) and seaice
11        fraction weighted wind stress over ocean+seaice (SIatmTx,SIatmTy).
12    o pkg/diagnostics:
13      - small piece of code to rename (old) diagnostics, when namelist is processed.
14    o model/src:
15      - new run-time param (useMin4hFacEdges) to select method for setting hFacW,S:
16        originally, set as minimum of adjacent hFacC factor ; now (new default)
17        computed from rSurfW,S and rLowW,S by applying same rules as for hFacC.
18        Only matters when useShelfIce=T with particular ice-shelf cavity geometry.
19    o pkg/seaice:
20      - add momemtum advection, off by default, still in test phase
21        most of the momentum advection code is adapted and reused from mom_vecinv
22    o pkg/mom_vecinv:
23      - pass these runtime flags:
24        selectVortScheme, highOrderVorticity, upwindVorticity, useJamartMomAdv
25        as formal parameters to s/r mom_vi_u/v_coriolis, mom_vi_u/v_coriolis_c4,
26        so that these routines can also be used in pkg/seaice.
27    
28    checkpoint66g (2017/04/24)
29    o model/src:
30      - more robust ordering of column thickness integral (=Sum_k(drF*hFac) )
31        to get same expression (regarding machine truncation) in different places
32        in ini_masks_etc.F (e.g., rSurfC,W,S is now exactly zero when it should).
33        Update forward output of experiments: global_ocean.cs32x15 (all 5 except
34        viscA4), isomip (x3), tutorial_global_oce_in_p & tutorial_plume_on_slope.
35    o pkg/shelfice:
36      - ALLOW_SHIFWFLX_CONTROL: move setting of maskSHI from shelfice_update_masks.F
37        to shelfice_init_fixed.F
38      - change S/R SHELFICE_UPDATE_MASKS to SHELFICE_INIT_DEPTHS (still called from
39        ini_masks_etc.F for now) to update ocean upper boundary position according
40        to ice-shelf topography (instead of directly updating hFacC).
41    o model/src:
42      - move call to CTRL_INIT & CTRL_ADMTLM from the middle to the bottom of
43        packages_init_fixed.F to allow other pkgs to set mask and weight fields.
44    
45    checkpoint66f (2017/04/06)
46    o model/src:
47      - add specific run-time param to select level of printed plot-field-maps,
48        set by default to debugLevel. Remove internal param "printDomain".
49    o pkg/seaice:
50      - add flag to add snow mass to seaiceMassC/U/V, the default is
51        SEAICEaddSnowMass=.FALSE., not to change previous results
52    o pkg/bling
53      - Bug fix in bling_production regarding unit conversion for diagnostics
54        being put in the wrong place
55    o model/src:
56      - add back recomputation of rSurfW & S to ensure consistent column thickness
57        (needed for rStar) between Sum_k(hFac*drF) and rSurf-rLow, for now only
58        when using pkg/shelfice; was initially added on 2012/06/01 (ini_masks_etc.F
59        revision 1.51) but was removed accidentally on 2014/02/08 (v1.53).
60    o pkg/autodiff:
61      - clean-up "checkpoint.flow"
62    o pkg/rw (Contribution from Jody Klymak):
63        option to set mds file suffix as function of time in simulation:
64        *) new input parameter "rwSuffixType" (read from PARM03 namelist)
65           to select file suffix format; by default (=0), use iteration number;
66        *) add simple routine to return file suffix according to rwSuffixType;
67        *) in model/src and in most pkgs (except: atm2d, fizhi, regrid & streamice),
68           use new S/R to get file suffix, except for debug output file (diagFreq)
69           and pkgs offline & rbcs input files.
70    o pkg/rw:
71      - uniform processing of "I10" suffix across writing fld routines; used to
72        simplify debug writing of cg2/3d_b/x in solve_for_pressure.F & post_cg3d.F
73        (similar to cg3d.F, cg3d_ex0.F)
74    o pkg/mom_vecinv:
75      - highOrderVorticity in selectVortScheme=2 case: fix c4 coeff in splitted
76        vorticity flux (keep same sum in case vBarXm=vBaXp, uBarYm=uBarYp).
77    o pkg/bling:
78      - Many small changes intended to clean the code.
79        Unnecessary ADJOINT_SAFEs removed ;
80        removed BLING_COST.h BLING_CTRL.h bling_cost.F ;
81        diagnostics added.
82    
83    checkpoint66e (2017/03/14)
84    o pkg/exf:
85      - interpolation with #undef EXF_INTERP_USE_DYNALLOC: move buffer size
86        definition outside EXF_PARAM.h in new header file: EXF_INTERP_SIZE.h;
87        use fixed size buffer (passed to S/R EXF_INTERP & EXF_INTERP_UV) to
88        avoid any dynamic allocation ;
89      - S/R EXF_CHECK: add new check & stop when file-name is defined but not
90        read-in ; add warning when file is read-in but not used within pkg/exf ;
91        + check for buffer-size (if #undef EXF_INTERP_USE_DYNALLOC).
92      - update exf_summary.F (print {FLD}RepCycle).
93    o verification/global_with_exf:
94      - switch on exf interpolation in AD test (just like the forward test)
95    o pkg/mom_vecinv:
96      - add storage directives to avoid recomputations within mom_vecinv.F
97        which were generating seg. fault with gfortran -devel
98    o pkg/ctrl, pkg/smooth:
99      - initialize array halos which were generating seg. fault with
100        gfortran -devel in adjoint mode
101    o pkg/exf:
102      - for each input field, enable to specify a field specific repeat-cycle
103        ({FLD}RepCycle) which defaults to pkg/exf main "repeatPeriod".
104    o verification/lab_sea:
105      - update AD results of primary test and noseaicedyn test after switching
106        to new version of TAF (5.3.13 vs 5.3.2 before); agreement with gradient
107        check stays about the same.
108    o pkg/exf:
109      - fix bug in exf_zenithangle.F for cases select_ZenAlbedo > 0 with useCAL=T.
110      - exf_check: MAX_LAT_INC need only be "loc_nlat-1", not equal to loc_nlat
111    o pkg/bling, USE_EXFCO2 code:
112      - add parameter "apco2RepCycle" (set to pkg/exf "repeatPeriod" by default);
113      - update calls to EXF S/R (use new version: EXF_INIT_FLD & EXF_SET_FLD).
114    o pkg/exf:
115      - rename S/R EXF_INIT to EXF_INIT_VARIA ;
116      - add arguments: fldName (for debug msg) and fldRepeatCycle (set to
117        repeatPeriod) to S/R EXF_SET_UV and to S/R EXF_SET_GEN (renamed EXF_SET_FLD)
118        and update calls in pkg/exf calling S/R (exf_getffields.F & exf_getclim.F) ;
119      - add argument: fldName (for debug msg) to S/R EXF_INIT_GEN (renamed
120        EXF_INIT_FLD) and update calls in exf_init_varia.F
121      - For now, for backward compatibility, keep a simplified version of S/Rs
122        EXF_SET_GEN & EXF_INIT_GEN in file exf_set_gen.F
123      - add and pass new arguments: fldName (for debug msg) and fldRepeatCycle
124        to S/R EXF_GetFFieldRec ; update calls in pkg/obcs/obcs_exf_load.F
125    o tools/genmake2:
126      - replace "bc -l" (only used once) by "expr" (already used).
127    o verification/global_ocean.cs32x15:
128      - turn off pkg/cal (useCAL=F) in secondary FWD exp. "icedyn".
129        Note: exf setting (data.exf) can be compared to other exf secondary exp
130        "seaice" (kept with useCAL=T) which has same time dependent forcing.
131    
132    checkpoint66d (2017/02/13)
133    o pkg/exf:
134      - remove setting of useCAL=T when using pkg/exf (useEXF=T); add warning
135        early on (in packages_boot.F) to stress this change in pkg setting.
136      - In (most) verification exp. that use pkg/exf, add useCAL=.TRUE. to data.pkg
137    o model/src:
138      - move call to ecco_phys to end of time step; this may induce minor
139        cost function changes by shifting time averages by one time step
140        for some variables; this revision resulted in changed adjoint results
141        in MITgcm_contrib/verification_other/global_oce_cs32
142    o pkg/exf:
143      - Change EXF_READ_EVAP to only activate code within #ifdef ALLOW_ATM_TEMP ;
144        this prevents to read evap when ALLOW_ATM_TEMP is undef and other fields,
145        e.g. precip, are not available.
146    o pkg/flt:
147      - flt_init_varia.F: use pickupSuff if specified
148      - add code (within #ifdef DEVEL_FLT_EXCH2) and test case as a first,
149        intermediate, step towards completing pkg/exch2 support within pkg/flt;
150        ifdef DEVEL_FLT_EXCH2 then:
151        - flt_init_fixed.F: comment out stop
152        - flt_exch2.F: conserve ipart, jpart (grid coordinates)
153        - exch2_recv_get_vec.F: transform ipart, jpart (grid coordinates)
154        - flt_mapping.F: attempt to fix longitude diagnostic near date-line
155        - flt_init_varia.F: hack initialization (for testing purposes w. LLC90)
156    o tools/genmake2 & pkg/pkg_depend:
157      - define new type of pkg dependency rule ("=pkg_x"), less strict than
158        the "+" rule, that add the dependent pkg (pkg_x) unless it's disabled
159        (-pkg_x in packages.conf).
160      - change pkg/exf dependency rule from "exf +cal" to "exf =cal";
161      - add "+cal" to dependency list of pkg/ecco (needed to compile).
162      - simplify FWD experiment "offline_exf_seaice" by removing pkg/cal.
163    o utils/matlab:
164      - adding ocean_basin routines for defining basin masks.
165    o pkg/exf:
166      - new S/R EXF_GETFFIELD_START replacing EXF_GETFIELD_START, but with more
167        arguments, allowing to check (and stop) if parameter setting of
168         {FLD}startdate1 & date2 and of {FLD}StartTime are consistent with
169        useCAL= T or F. For now, kept a simplified version of EXF_GETFIELD_START
170        for backward compatibility.
171      - change accordingly calls in exf_init_fixed.F + default {FLD}StartTime in
172        exf_readparms.F ; apply same changes to pkg/icefront (for SGRunOff field).
173    o pkg/bling (USE_EXFCO2 code):
174      - fix missing setting of apco2StartTime according to apco2startdate1 & date2
175        by adding a call to S/R EXF_GETFFIELD_START.
176    o pkg/exf:
177      - allows to compile without pkg/cal (but disabled by current dependency
178        rules, i.e., default "pkg/pkg_depend"). Minimal changes to enable to
179        run with useCAL=F ; this involves setting directly {FLD}StartTime instead
180        of {FLD}startdate1 & date2 ; consistency check not yet coded.
181    o verification/global_ocean.cs32x15:
182      - fix all data.exf for a shift of 1 day in all field startdate1 so that it now
183        corresponds to middle of 1rst month; update outputs (2 fwd + 3 adm + 3 tlm).
184    o pkg/exf:
185      - allow to use EXF_ZENITHANGLE without pkg/cal + simplify (saving some
186        calculations); change FWD experiment global_ocean.cs32x15
187        (#define ALLOW_ZENITHANGLE) to test/check that this code compiles.
188    o pkg/exf:
189      - In preparation for addition to NAMELIST, rename internal (_RL) parameter
190         {FIELD}startdate to {FIELD}StartTime
191        Note: new name also fit better the content, i.e, a start time in second.
192    o eesupp/src:
193      - add 1 argument to S/R EEBOOT & EEBOOT_MINIMAL for interface with ESMF
194    o pkg/exf:
195      - add option ALLOW_READ_TURBFLUXES (and corresponding set of parameters)
196        to allow to read-in Sensible & Latent Heat flux ;
197      - simplify pkg/exf main options:
198        1) move small piece of code (case ALLOW_ATM_TEMP undef) out of
199           exf_bulkformulae.F into exf_wind.F so that exf_bulkformulae.F is
200           compiled only when both ALLOW_ATM_TEMP & ALLOW_BULKFORMULAE are defined;
201        2) make call to EXF_RADIATION and to EXF_WIND independent of CPP option
202           ALLOW_BULKFORMULAE which now only applies to S/R EXF_BULKFORMULAE ;
203        3) improve options documentation in EXF_OPTIONS.h.
204    o pkg/ecco:
205      - cost_gencost_customize.F,ecco.h,ecco_phys.F,ecco_readparms.F, and
206        ecco_summary.F: add passive tracer cost functions to gencost;
207        m_ptracer and m_boxmean_ptracer
208    o pkg/ctrl:
209      - ctrl_map_forcing.F: pass myIter and myTime to ctrl_map_forcing as input
210        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing; add to list
211        of implemented gentim2d contol parameters: xx_qnet, xx_empmr, xx_qsw,
212        xx_sst, xx_sss, xx_pload, xx_saltflux, xx_fu, xx_fv, xx_fe, xx_fn
213    o model/src:
214      - forward_step.F: pass myIter and myTime to ctrl_map_forcing as input
215        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing
216    o pkg/exf:
217      - exf_getffields.F: add to list of implemented gentim2d contol parameters:
218        xx_lwflux, xx_swflux, xx_evap, xx_apressure, xx_areamask
219    
220    checkpoint66c (2017/01/19)
221    o verification:
222      - add new option "-src" to testreport to only produce source code (*.f),
223        including taf output src code (if using '-adm'/'-tlm' option).
224    o pkg/exf:
225      - add saltflx :: Net upward salt flux in psu.kg/m^2/s
226    o pkg/diagnostics:
227      - add run-time variable diagMdsDir to specify a subdirectory for
228        diagnostic output when mds is being used and mdsioLocalDir is not.
229    o pkg/mnc:
230      - mnc_utils.F: edit stop message
231    o pkg/autodiff:
232      - autodiff_ini_model_io.F: PRINT_MESSAGE, clean-up comments, add _*_MASTER,
233        add HAVE_SYSTEM bracket around system call to mkdir
234    o pkg/profiles:
235      - profiles_findunit.F, profiles_init_fixed.F, profiles_interp.F,
236        profiles_readparms.F: call ALL_PROC_DIE before 'stop'
237      - profiles_ini_io.F: use PRINT_MESSAGE, clean-up comments, add _*_MASTER,
238        add HAVE_SYSTEM bracket around system call to mkdir
239    o pkg/smooth:
240      - smooth_filtervar2d.F, smooth_filtervar3d.F: call ALL_PROC_DIE before 'stop'
241      - smooth_init2d.F, smooth_init3d.F: move print statements to readparms
242      - smooth_readparms.F: add cleaner print statements from smooth_init?d.F
243    o pkg/exf:
244      - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
245        issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc > 500
246        generalize tests on interpMethod, nlat, and lon_inc to all exf variables.
247      - summary: skip detailed field report if not used (empty file-name).
248    o tools/xmakedepend:
249      - In case line editor "ed" is missing, switch to "sed" command to clean-up
250        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
251    o pkg/exf:
252      - change definition of "hflux" input file to always include Short-Wave;
253        this is now consistent with hflux computation (if using bulk-formulae)
254        and hflux diagnostic & documentation (in EXF_FIELDS.h).
255    
256    checkpoint66b (2016/12/01)
257    o model & momentum pkgs:
258      - implement fully implicit bottom friction combined with implicit surf.
259        pressure, for now, only in hydrostic formulation:
260        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
261          and run with selectImplicitDrag=2 ;
262        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
263      - partial implicit time-stepping (bot. friction + vert. visc first, then
264        surf. press) corresponding to selectImplicitDrag=1 should be applicable
265        to NH formulation but not available until we solve for surf. pressure
266        increment (instead of full etaN).
267      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
268        with implicit vertical viscosity.
269    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
270      - this is a first version that includes many regularisations that may
271        not all be necessary, to be sorted out,
272      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
273      - change one verification experiment in seaice_itd to use and test new code
274      - seaice_growth: catch a case where the argument of log can be zero
275        or smaller (important for code stability)
276    o model/src:
277      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
278        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
279        similar A.X'=Y' system (with same matrix A) in subsequent calls;
280        switch based on errCode (In/Out) argument value; in calling routines,
281        initialise errCode before first call.
282    
283    checkpoint66a (2016/10/18)
284    o pkg/bling:
285      - BLING package now loads in atmospheric pCO2 file using exf package routines
286        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
287    o model/src & pkg/ptracers:
288      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
289        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
290        implicitDiffusion (respectively) are used (even without momImplVertAdv
291        or temp,salt,PTRACERS_ImplVertAdv).
292    o model/src & generic_advdiff:
293      - add parenthesis in main diagonal calculation of implicit vertical
294        diffusion matrix (impldiff.F & gad_implicit_r.F).
295        This affects results at machine truncation level; update output of many
296        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
297    o pkg/mom_commom & generic_advdiff:
298      - add deep atmosphere and anelastic scaling factor in implicit vertical
299        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
300    o model/src:
301      - remove few unnecessary temp array copies in solve_tridiagonal.F
302        & solve_pentadiagonal.F
303    
304    checkpoint65z (2016/09/28)
305    o pkg/seaice: fix multithreading for seaice_fgmres.F
306      - remove unecessary variables from common blocks
307      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
308        basis, that are stored in commom blocks (including integer variable i1)
309      - clean up code a little by removing commented lines that refer to
310        original code
311      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
312    o MITgcm manual:
313      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
314        preliminary documentation for generic controls (8.3; ctrl.tex),
315        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
316        ecco_costfunction.tex
317    o pkg/ecco:
318      - update and cleanup list of CCP options
319      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
320        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
321      - add checks that retired run-time options are not used, and in relation
322        to gencost_mask and gencost_errfile
323      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
324        gencost_nrecperiod
325      - fix m_eta computation for virtual salt flux case
326      - add m_horflux_vol case (selected via gencost_barfile) that computes
327        transports via cost_gencost_boxmean (gencost_flag=-3)
328      - use gencost_flag more systematically (i.e., avoid using gencost_name)
329        for code switches (aside from physical variable selection)
330    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
331      attempt appears to be a bit of a hack and my need some repair down the road
332    o pkg/exf:
333      - interpolation near South Pole: fix criteria on input field latitude.
334    o pkg/icefront & pkg/exf:
335      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
336        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
337    o pkg/exf:
338      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
339        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
340        (add suffix "_out" instead of a prefix); keep same record number as in
341        input file but always write record 1 first (to avoid a STOP in I/O S/R).
342        Change output file content by writing interpolated field before applying
343        land-sea mask (helpful for debug).
344      - 2 compon. vector interpolation with rotation: apply scaling factor on
345        each compon. (Eastward and Northward) just before rotation.
346    o pkg/bling:
347      - Cleaned package. Removed not needed code and comments.
348      - adjoint example now works
349        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
350    o pkg/ptracers:
351      - add Bruno Deremble's code to complete the linear surface correction
352        for tracer conservation;
353      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
354    
355    checkpoint65y (2016/07/29)
356    o pkg/debug (stats):
357      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
358        proc/thread mapping);
359      - fix Min & Max for case where 1 thread has only empty tiles;
360      - use RL variable to count number of wet grid points (with big domain,
361        can be too large to fit into integer*4).
362    o pkg/monitor:
363      - use RL variable to count number of wet grid points (but used only for del2)
364      - add new routine to compute Advective CFL within tracer time-stepping with
365        writing delayed until next monitor output.
366    o pkg/obcs:
367      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
368    o pkg/cal:
369      - calandar-dump: treat case myTime < timePhase in the same way as in
370        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
371    o pkg/dic & seaice:
372      - fix compilation of ocean component for coupled atm+ocn model with
373        seaice dynamics & dic.
374    
375    checkpoint65x (2016/06/11)
376    o add a license text file in main MITgcm tree.
377    o added pkg/bling:
378      - intermediate complexity biogeochemical model
379      - see bling_description.txt for details
380      - verification experiment is global_oce_biogeo_bling (for now, in
381        Contrib/verification_other/); tested daily on baudelaire with gfortran.
382      - add entry point in pkg/gchem for new pkg "bling".
383    o pkg/seaice: fix tensile stength computation
384      - replace global field tensileStrength by tensileStrFac
385      - tensileStrFac can be computed once in S/R seaice_init_varia
386      - fortunately that does not affect any verification results
387    
388    checkpoint65w (2016/05/12)
389    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
390         with ECCO_CTRL_DEPRECATED defined
391    o verification/global_ocean.cs32x15:
392      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
393        with "selectNHfreeSurf=1".
394    o model/src (non-hydrostatic free-surface):
395      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
396        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
397      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
398        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
399        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
400        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
401      - Update output (changes at machine truncation level) of verification exp:
402        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
403        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
404    o pkg/seaice: ITD code
405      - fix picking up from a single category model by initialising
406        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
407      - split a long warning message in seaice_check_pickup.F into two lines,
408        because NEC SX-ACE cannot deal with the long line.
409    o model/src:
410      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
411    o pkg/seaice:
412      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
413    o pkg/seaice:
414      - add basal stress as parameterisation for grounding ice
415        following Lemieux et al. (2015)
416      - turn on by setting new parameter SEAICEbasalDragK2 to a value
417        larger than 0. Lemieux et al. (2015) recommend 15.
418      - The adjoint complains with extra recomputations so there is also a
419        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
420        order to postpone the problem
421      - compile the new code in lab_sea
422    o verification/halfpipe_streamice:
423      - update both TAF and OpenAD adm output (machine truncation differences)
424    
425    checkpoint65v (2016/04/08)
426    o verification/advect_xz:
427      - increase overlap size from 3 to 4 and add new secondary test for PQM
428        advection scheme (with mono & wino limiter).
429      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
430    o model/src:
431      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
432        added phi0Ref) to set vertical axis origin and phiRef origin;
433        keep Ro_SeaLevel for backward compatibility (with a warning).
434       According to coordinate and fluid type:
435        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
436        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
437        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
438        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
439      - remove Ro_SeaLevel from ATM experiment parameter files;
440      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
441        complement; update output.txt (changes at machine truncation level).
442    o pkg/seaice/seaice_evp.F
443      - simplify computation of deltaZ and zetaZ to simple averaging following
444        Bouillon et al. (2013). This removes a lot of code, but also changes
445        verification experiment lab_sea.hb87 -> updated
446    
447    checkpoint65u (2016/03/14)
448    o pkg/generic_advdiff:
449      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
450        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
451        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
452        testing and not for actual use.
453    o model/src:
454      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
455        origin r = rF(1);
456      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
457        in EOS for height coordinate: enable to include NH Pressure or to use
458        more accurate pressure vertical profile; options not linked to EOS type
459        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
460      - start to implement variable gravity (along vertical): for now, only with
461        z-coords (not even z*).
462      - add Ideal Gas equation of state for height coordinate.
463      - update OpenAD output (affected at machine truncation level) of exp:
464        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
465    o pkg/exf:
466      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
467        of exf interpolation (before any rescaling, rotation or interpolation
468        to velocity point) for each field that gets loaded from file. This option
469        identically mimics the input file organization (e.g. record numbers in year
470        by year input files) besides the change in horizontal grid.
471      - add rotateStressOnAgrid run-time switch so that wind stress fields
472        can be provided on the A-grid in zonal/meridional direction and
473        rotated on the fly. This only applies to the case when the exf
474        interpolation is off and rotateStressOnAgrid is false by default.
475    o model/src:
476      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
477        it's also used with pkg/atm_phys) and add few more parameters (but still
478        inactive, src code yet to come)
479    
480    checkpoint65t (2016/02/10)
481    o pkg/atm_phys:
482      - from Ruth Geen: add optical depth dependence on CO2 concentration.
483    o model/src:
484      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
485        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
486        Update output of exp. deep_anelastic (changes at truncation level).
487    o tools:
488      - add a hack in "remove_comments_sed" (used only with TAF) for recent
489        version of OpenMPI (shipped with FC.23): comment out the new header
490        file "mpif-sizeof.h" which causes problems to TAF.
491    o pkg/seaice:
492      - change the termination criterion so that maxits (SEAICElinearIterMax)
493        has an effect
494      - unify iteration parameters for implicit solvers (JFNK and Picard)
495        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
496        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
497        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
498        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
499        SEAICEnonLinTol     replaces JFNKgamma_nonlin
500      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
501      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
502        use with SEAICEuseKrylov
503    o pkg/seaice/seaice_lsr.F
504        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
505        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
506        an effect.
507    o pkg/seaice: add two new parameters
508      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
509        parameter is not in any namelist)
510      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
511        a preconditioner for the non-linear Newton iteration of the JFNK
512        solver
513    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
514      affects some experiments at truncation level:
515      - global_ocean.cs32x15.icedyn (11 digits),
516      - global_ocean.cs32x15.seaice (11 digits),
517      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
518      - also update global_ocean.cs32x15 adjoint and tangent-linear results
519    o pkg/salt_plume & pkg/thsice:
520      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
521        connect salt_plume flux to ATM-OCN coupling pkgs interface:
522       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
523         export to coupler interface) even without compiling pkg/salt_plume ;
524       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
525         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
526    o pkg/dic:
527      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
528        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
529        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
530      - move also update with values from ATM-OCN Coupler in the same new S/R
531        (previously done in ocn_apply_import.F).
532    o tools/adjoint_options:
533      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
534        has been changed on Jan 14, 2016.
535    o pkg/ggl90:
536      - add alternative discretisation of vertical shear (off by default), to
537        compute the mean (@ grid-cell center) of vertical shear compon instead of
538        vertical shear of mean flow (@ grid-cell center).
539      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
540        results on adjacent faces of cubed-sphere grids; this fix the restart.
541    o pkg/atm_compon_interf:
542      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
543        pass last value, stored directly before export to CPL ;
544        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
545      - remove atmSLPr from pickup files (no longer needed for restart)
546    
547    checkpoint65s (2016/01/13)
548    o eesupp & genmake2:
549       - first check for Function ETIME and, if it fails, then check for subroutine
550         ETIME and consistent output; use the appropriate version in timers.F
551    o model/src:
552      - to check restart test, add option to apply EXCH to U,V earlier, just before
553        integr_continuity; turned off by default.
554    o pkg/dic:
555      - remove CPP option USE_ATMOSCO2 (not needed)
556    o tools/tst_2+2:
557      - try to ignore difference between +0 and -0 in binary file, causing test
558        to fail for no good reason.
559    o eesupp & genmake2:
560      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
561        but also check (in genmake2) that test runs and returns meaningful results.
562    o coupler pkgs:
563      Finish implementation of optionally-exchanged variable switches (started on
564       Nov 12) with addition of few more exchanged fields, including 2-way exchange
565       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
566       advection in OCN component; this requires sequential coupling.
567      coupler (pkg/atm_ocn_coupler):
568      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
569        routines (useful for debug).
570      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
571         flux, DIC fields) if corresponding switch is ON.
572      - add option to export RunOff to OCN (to use for DIC river input)
573      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
574      components (pkg/atm_ & ocn_compon_interf):
575      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
576        optionally exchanged fields; add a check & stop in cpl_readparms.F.
577        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
578        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
579      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
580        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
581      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
582      - hold in common block coupler optionally-exchanged variable switch
583        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
584      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
585        this is intended to replace the OCN cplFldtave.* output files (not updated
586        to contain new additional exchanged fields).
587    o pkg/dic:
588      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
589    o pkg/thsice:
590      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
591        and writing of thsice pickup files.
592    o pkg/atm_compon_interf:
593      - move all field individual export-call out of cpl_export_import_data.F
594        into new S/R ATM_EXPORT_FIELDS
595    o pkg/atm_compon_interf:
596      - store state variables (for now, only thSIce fields) just before beeing
597        exported (in cpl_export_import_data.F, like on ocean side) instead of from
598        atm_store_my_data.F like all exported fluxes.
599      - new version of pickup_cpl: write field names into meta file and read meta
600        file to find field postion in pickup. Also only write/read fields meeded for
601        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
602    o pkg/dic:
603      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
604    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
605        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
606        value can be from domain [0,1] to average between the two methods
607    o pkg/atm_phys:
608      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
609        hold fixed in time).
610    
611    checkpoint65r (2015/12/21)
612    o pkg/seaice:
613        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
614        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
615    o pkg/seaice:
616      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
617        when SEAICEscaleSurfStress=.TRUE.,
618      - apply areaW and areaS in S/R seaice_calc_lhs
619    o pkg/atm_phys:
620      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
621        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
622        for individual contribution (convection, LSC cond, radiation)
623      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
624        information); activated with: solar_exponent=0. and wv_exponent=-1.
625    o pkg/ggl90:
626      - within IDEMIX add upper limit for horizontal group velocity to
627        avoid instability problems in the explicit horizontal diffusion term for
628        long time steps or high resolution
629    o pkg/diagnostics:
630      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
631        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
632    o testreport:
633      - remove "-v" (verbose option) in default mpirun command.
634    o pkg/seaice/seaice_growth:
635      - catch potential division by zero in ITD code, does not change
636        verification results
637    o pkg/ecco:
638      - retire old codes to the Attic. The calls to retired functions are
639        left in a commented form in case they ever need to be re-activated.
640      - ecco_check.F: issue warning if any old CPP option is
641        defined that corresponds to retired codes -- then stop.
642    o pkg/atm_compon_interf:
643      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
644        coupler: use last time-step value instead of average over cplSendFrq_iter
645        time-step, similar to what is done for seaIceMass.
646        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
647    o eesupp & genmake2:
648      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
649        <= remove until a fix is found for some ifort version on ia32 machine.
650    o pkg/seaice/seaice_evp:
651      - refine residual computation
652    
653    checkpoint65q (2015/11/18)
654    o pkg/seaice/seaice_evp:
655      - fix residual computations so that they no longer affect the actual
656        simulation code
657      - fix seaice_readparams to be able to actually set new parameters
658        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
659    o model/src:
660      - fix wrong truncation (single prec) from "FLOAT" function in expressions
661        like: deltaT*FLOAT(myIter) when myIter is large:
662         a) replaced by DFLOAT (if not seen by TAF);
663         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
664    o pkg/aim_v23:
665      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
666        when pickupSuff is set ; do write rolling pickups + at the end of the run.
667    o pkg/atm_ocn_coupler + ocn_compon_interf:
668      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
669        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
670        add corresponding call in DO_OCEANIC_PHYS.
671    o coupler pkgs:
672      Start a new way to set-up optionally-exchanged variables (previously, only
673       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
674       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
675       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
676       compononent param default can be set accordingly).
677      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
678       but rather applies to a group a fields (going both ways like for DIC)
679       and corresponds to an option of coupling config.
680      coupler (pkg/atm_ocn_coupler):
681      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
682        and read namelist directly (without eessup S/R calls) instead of
683        in the very un-flexible old way, 1 param per line, in fixed order;
684      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
685        cleanly in CPL_CHECK_CPLCONFIG
686      - add new coupling-exchange selectors (some not yet active) including
687        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
688                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
689      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
690        component ; called directly from coupler.F, after comp. registrations;
691      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
692         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
693          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
694      components (pkg/atm_ & ocn_compon_interf):
695      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
696        CPP header file in all pkg source files.
697      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
698        ATM/OCN_CHECK_CPLCONFIG;
699      - add error-counter to track errors (e.g., in "data.cpl") and to stop
700        cleanly in ATM/OCN_CHECK_CPLCONFIG;
701      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
702        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
703        before PACKAGES_READPARMS;
704      verification/cpl_aim+ocn/:
705      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
706        "data.cpl" for coupler (in input_cpl).
707    o eesupp/inc:
708      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
709        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
710        to always cumulate tile local-sum in the same order (still uses
711        MPI_Allreduce like standard code).
712      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
713        that are now identical to standard version (in eesupp/inc).
714    o pkg/shelfice:
715      - add SHELFICETransCoeffTFile for initializing spatially varying
716        heat and salt transfer coefficients
717    o pkg/atm_compon_interf & ocn_compon_interf:
718      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
719        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
720      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
721    o pkg/atm_ocn_coupler:
722      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
723    o pkg/rbcs:
724      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
725        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
726      - add a short report (to STDOUT) about RBCS-mask settings.
727    
728    checkpoint65p (2015/10/23)
729    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
730        there is no adjoint test for EVP, we don't know what it does to the adjoint
731        solution, but at least there are no more recomputation warnings left
732    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
733        a chance of giving the same results as a fully converged VP (JFNK) solver
734    o tools/adjoint_options/adjoint_diva:
735      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
736    o pkg/streamice:
737      - spotted bug in streamice_driving_stress using dyG where should have been dxG
738    o pkg/exf:
739      - remove STOP statement that prevented to use wind or (wind-)stress
740        interpolation for constant-in-time forcing fields (wind/stress period = 0).
741    o pkg/seaice:
742      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
743        5 additionals 2D fields and 6 new store directives
744      - change logic in seaice_readparms.F: EVP code can now be turned on in
745        various ways, setting SEAICE_deltaTev is no longer required,
746        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
747        or SEAICEaEVPcoeff
748    o pkg/shelfice/shelfice_thermodynamics.F
749      - redefining uLoc/vLoc to u/v, instead of 2u/v
750    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
751      - this is an intermediate state of a truely converging EVP that has
752        the potential of outperforming implicit VP methods, I do not recommend
753        using it yet.
754      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
755        and all parameters are hardwired
756      - for convergence it still requires very smooth regularisations, that means,
757        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
758        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
759        specific averaging appears to be required, still subject to tuning
760      - still needs cleaning and I need to turn parameter into runtime parameters
761      - add code to compute and print residuals of iteration, compile with
762        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
763    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
764      that entered with r1.54 on Sep04, 2015, -> update results
765    
766    checkpoint65o (2015/09/14)
767    o pkg/mom_vecinv & mom_common:
768      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
769        called from there.
770      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
771        allows to use Vector-Invariant form in deep atmos and anelastic formulation
772    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
773      and Koenig-Beatty+Holland (2012)
774      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
775      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
776      - requires an extra input argument for S/R seaice_calc_viscosities
777      - tensileStrength's depth dependence is different from Itkin et al. (2015)
778        (to be changed and played with, for now exponential)
779    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
780      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
781        by AREA according to Connelly et al. (2004), JPO.
782      - For EVP and the LSR solver, the implicit part of the drag term is
783        the only non-zero term in the denominator when there is no ice (which
784        prevented running the model with zero ice-ocean drag). If
785        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
786        (or zero main diagonals BU/BV) which need to be caught. A practical
787        consequence is that for open water, the momentum equation reduce
788        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
789        they happen to be zero, often leading to a non-zero solution over
790        open water.
791    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
792        efficient EVP method.
793      - introduce area-weighted averages for e12 (analogously to
794        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
795        remain, but also changing the order of terms in the previous average
796        changed the results as much) -> update experiment
797      - add SEAICE_DELTA_SMOOTHREG code
798      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
799        TEM-code
800      - adjust loop bounds so that only required fields are computed
801      - add new averaging code for zetaZ/deltaZ (again similar to
802        seaice_calc_viscosities.F), inactive by default for now (will change
803        results again), but will replace old code eventually
804    o eesupp/src:
805      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
806        to always cumulate tile local-sum in the same order
807        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
808        Still uses MPI_Allreduce (like standard code) but on array of tiles
809        and should be faster than GLOBAL_SUM_SEND_RECV code.
810      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
811        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
812      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
813         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
814         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
815         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
816         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
817    
818    checkpoint65n (2015/07/29)
819    o pkg/thsice:
820      - add a warning when used with pkg/aim but without updating SST
821        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
822    o pkg/offline:
823      - change where Offline-Fields are loaded, from load_fields_driver.F to
824        directly within FORWARD_STEP, just after updating iter number and time;
825      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
826        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
827       These changes allow:
828        a) to recover exactly on-line results using deltaToffline=deltaTClock,
829        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
830        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
831        time-step, both with GM & KPP files and with recomputing these fields;
832        b) no needs to switch on staggerTimeStep anymore;
833        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
834      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
835    o pkg/offline:
836      - change (rarely used) offset-iteration parameter to an offset time (in s):
837        can easily recover previous offset-iter effect by setting offset-time
838        (offlineTimeOffset) to offset-iter x deltaToffline;
839      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
840        in KPP as part of surface buoyancy forcing) in offline run.
841      - fix ptracers KPP non-local term in the case where KPP is re-computed.
842    o OpenAD
843      - Adding preliminary ggl90 test to OpenAD verification.
844        Config. with ggl90 currently diverges after 64 time steps
845        so will need more work to become more stable
846      - Adding preliminary kpp test to OpenAD verification.
847        required small tweakes in kpp_routines.F
848      - Merge and update from Krishna Narayanan's contrib area:
849        * Add one variable for preliminary OpenAD DIVA
850        * Add replacement time-stepping for OpenAD DIVA
851        * genmake2 flag -diva (but only for OpenAD; preliminary)
852        * required modifs for OAD_support
853        successful preliminary test for tutorial_global_oce_biogeo/
854    o pkg/seaice:
855      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
856      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
857        delta with a smooth function in s/r seaice_calc_viscosity
858        (no effect on EVP)
859      - rename local suffix "sqr" into "sq" for more consistent variable names
860    o pkg/seaice:
861        add new parameter SEAICE_deltaMin that is used ***only***
862        for regularizing Delta (and nothing else, like the parameter
863        which is also used for all sorts of things SEAICE_EPS).
864        Defaults to SEAICE_EPS for backward compatibility only.
865    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
866        the wrong key by inialising it before use -> fixes a recomputation
867        problem but does not fix the gradient
868    o pkg/layers:
869      - move resetting of flux arrays to outside the iLa loop
870        (this caused layers_diapycnal to not work with more than one layer coord.)
871      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
872    o pkg/layers:
873      - remove from common block 3D layers fields (used to diagnose transport
874        in tracer coords) and declare them as local arrays in layers_calc.F
875    o pkg/seaice:
876      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
877        in lab_sea forward experiment (changes results -> updated)
878      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
879    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
880       computations; for SEAICE_VECTORIZE_LSR
881      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
882        sweep to the outside,
883      - remove store directives and add "CADJ loop sequential" directives
884        in analogy to model/src/solve_tridiagonal.F
885      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
886        boundaries to yield more readable code. This has also the charming side
887        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
888        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
889        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
890        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
891        an additional option)
892       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
893       but the adjoint gradients (which are affected by this change) still explode.
894    o coupler (atm & ocn _compon_interf):
895      - avoid using Exch2 IO mapping if not suitable.
896    
897    checkpoint65m (2015/06/15)
898    o pkg/layers:
899      - clean-up old parameters setting (from Sep 2012):
900        + remove old parameters setting from common block (declared locally);
901        + stop if any old parameter is mixed with new parameters;
902        + check for valid or consistent parameter setting (e.g., layers_name)
903      - check that layers_bounds for Pot.Density are in the right range;
904        this is supposed to catch un-updated setting after recently shifting
905        potential density field "prho" by -1000 (now in "sigma" scale).
906    o pkg/layers:
907      - Added missing call to layers_fill for keeping track of tottend in
908        pkg/diagnostics/diagnostics_fill_state.F
909    o pkg/layers:
910      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
911        of diapycnal fluxes
912    o pkg/layers:
913      - reverted changes to interpolation to previous treatment; there
914        was never actually a problem
915    o pkg/layers:
916      - fix interpolation of layers tracers in the presence of partial cells
917      - add lots of new functionality to compute water mass transformation
918        (enabled by CPP flag LAYERS_THERMODYNAMICS)
919      - add new calls from main code (diags_oceanic_surf_flux.F,
920        thermodynamics.F, impldiff.F) and gad to save the necessary fields
921        for layers_thermodynamics calculations
922    o pkg/ptracers:
923      - add capability of stepping a passive tracer forward without advection
924        by setting PTRACERS_advScheme to 0.
925    o pkg/diagnostics:
926      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
927    o pkg/layers:
928      - shift potential density field "prho" by -1000 for density layer averaging so
929        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
930        Note that density bin boundaries (layers_bounds in data.layers) have
931        to be set accordingly (i.e., shifted, in sigma scale).
932    o pkg/layers:
933      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
934      - fix calculation of layer non-weighted velocity and layer probability
935      - add diagnostics for pot.density used for layer averaging
936    o pkg/seaice:
937      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
938        positiveness, modify a few comments and improve variable names,
939      - the changed computation of deltaC affects most seaice-related
940        experiments at the truncation level.
941        seaice_itd.thermo is affected by far the most, with
942        only 7 digits of agreement remaining; update experiments.
943    
944    checkpoint65l (2015/05/04)
945    o pkg/shelfice:
946      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
947        factor drKp1 to zero where it is negative (ie. do not use
948        SHELFICEBoundaryLayer if hFacC>1)
949      - the same for factor drLoc in shelfice_forcing.F
950    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
951        with modules in ptracers, when using testreport option "-small_f"
952    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
953      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
954    o verification/testreport
955      - add new option -small_f
956        with this option testreport first makes the target small_f (*.f files)
957        before running make (all). This is useful for explicit inlining when
958        all sources need to be full available.
959    o pkg/exf/exf_interp.F:
960        remove previous changes related to reverse (decreasing) input grids latitude
961    
962    checkpoint65k (2015/04/01)
963    o pkg/ecco:
964        fix missing cosphi initialization; use eccoiter in place of optimcycle;
965        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
966        instead of active read/write
967    o pkg/ctrl:
968        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
969        instead of active read/write.
970    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
971        return if .NOT.useAUTODIFF
972    o pkg/seaice: add CPP brackets (cost function related).
973    o model/src:
974        add useAUTODIFF run time switch.
975    o pkg/exf/exf_interp.F:
976        add code to allow input grids with latitude starting in the north (i.e. when
977        j=1 corresponds to northern edge of field); modify global_with_exf to test
978        this feature.
979    o verification/testreport:
980      - replace "grep -A3" with POSIX conformal sed command, because there are
981        implementations of grep that cannot do contextual searches
982      - replace "cat -n" by "nl" (two occurrences), because not all implementations
983        of "cat" have the option "-n"
984    o model/src:
985        add new file gsw_teos10.F that contains 3 functions, more or less a copy
986        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
987        convert from conservative to potential temperature. For now they are not
988        called anywhere.
989    o pkg/ggl90: make "useIDEMIX" useful
990      - re-organize code in s/r ggl90_calc a little to move computations that
991        are different for idemix into separate loops (changes verification
992        experiment idemix at truncation level, 12 digits remain -> updated)
993      - requires 2 new 2D fields KappaM, verticalShear
994      - make hFacI and recip_hFacI local 3D variables that are passed to
995        s/r ggl90_idemix
996      - fix and improve some comments
997    
998    checkpoint65j (2015/02/25)
999    o pkg/openad
1000      - synchronize seawater.F with version in model/src: replace routine
1001        body of sw_temp by calling sw_ptmp and fix/add a few comments.
1002    o pkg/mnc:
1003      - change default value of pickup_read/write_mnc params to FALSE
1004        (since few features are missing in reading MNC pickup files).
1005    o model/src:
1006      - change default (background) vertical diffusivity for salt to be the
1007        temperature (background) vertical diffusivity.
1008      - change background vertical diffusivity in vertical mixing pkgs ggl90,
1009        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
1010        This makes ptracers default diffusivity (that uses salt diffKr) more
1011        consistent with vertical mixing schemes.
1012    o verification/testreport:
1013      - fix typo in "-pcls" option ;
1014      - put temp files in /tmp (instead of in local dir)
1015      - add option "-ncad" to use genmake2 new option "-nocat4ad"
1016      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
1017    o pkg/ggl90 (idemix code):
1018      - apply few fixes ; add some missing "_d 0" ; update output of exp.
1019        global_ocean.90x40x15.idemix
1020    o OpenAD
1021      - enable active file I/O and begin removal of work-around code
1022        for OpenAD for handling control variables (memory vs. active files)
1023      - new CPP options file OPENAD_OPTIONS.h
1024      - revert to genarr2d gradient check for hs94.1x64x5
1025      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
1026      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
1027    o tools/genmake2:
1028      - add option for an alternative Makefile (from Martin) where multiple
1029        source files are sent to TAF (instead of all in one file).
1030    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
1031      - code provided by Carsten Eden as an extension of ggl90
1032      - so far the code is turned on within ggl90 by setting a CPP-flag at
1033        compile time; a runtime flag implementation is not yet complete
1034      - tested in new verification experiment global_ocean.90x40x15.idemix
1035    o verification:
1036      - reduce length of the AD test run by half for experiments
1037        global_ocean.cs32x15 (std + thsice) and isomip
1038      - enable active file I/O for OpenAD, adjust verifications accordingly
1039      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
1040    o verification/testreport:
1041      - fix two non-POSIX sed statements so that there are no error messages
1042        on Mac OS X
1043      - replace hostname -s with hostname | sed 's/\..*$//'
1044    o model/src/seawater.F:
1045      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
1046        (following the matlab code), which would have avoided the bug caught
1047        by Matt (see below) in the first place
1048    o pkg/shelfice:
1049      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
1050        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
1051      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
1052        ice-shelf case (i.e., within surface level).
1053      - add config summary in shelfice_check.F
1054      - remove global variable recip_SHELFICElatentHeat and replace by a local
1055        variable recip_latentHeat
1056      - introduce diagnostics for friction velocity uStar (in case of
1057        SHELFICEuseGammaFrict)
1058      - change verification experiment isomip.htd:
1059        + start from pickup (as input_ad at nIter0=8640)
1060        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
1061        + test SHELFICEuseGammaFrict = .TRUE.
1062        + test SHELFICEadvDiffHeatFlux = .TRUE.
1063    o model/src:
1064      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
1065        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
1066        update output of experiments global_with_exf.yearly and isomip (all 6).
1067    o pkg/shelfice:
1068      - change setting of kTopC to also be zero where there is no ice-shelf.
1069      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
1070        ice-shelf is.
1071      - first attempt to get RealFreshWaterFlux effects: for now, only without
1072        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
1073    o pkg/seaice: add the option to prescribe a fixed thickness PDF
1074      for thermodynamic calculations
1075      - because of divisions of the type 7/7 not exactly equal to 1, this change
1076        affects results of some verification experiments by up to 4 digits:
1077        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
1078        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
1079        adjoint: lab_sea, lab_sea.noseaicedyn
1080        -> updated
1081    
1082    checkpoint65i (2015/01/23)
1083    o model/src:
1084      - change units of frictionHeating field from W to W/m^2
1085      - fix bug in frictional heating from stratospheric drag in
1086        S/R ATM_PHYS_TENDENCY_APPLY_V
1087      - with synchronous time-stepping: move resetting to zero of frictionHeating
1088        field from load_fields_driver.F to thermodynamics.F ;
1089      - add diagnostics for frictional heating.
1090    o model/src & gmredi K3D:
1091      - add frictionHeating field to pickup-files (for synchronous time-stepping)
1092      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
1093      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
1094        and name in pickup file).
1095      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
1096    o model/src:
1097      - move (from ini_forcing.F) initialisation of all arrays in header file
1098        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
1099        (since Nov 2012) with option selectAddFluid=1.
1100    o pkg/shelfice:
1101      - change units (+ document) of newly added field "shelfIceMassDynTendency"
1102      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
1103    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
1104    o pkg/seaice: two new runtime parameters:
1105      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
1106        long overdue
1107      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
1108        parameterization of tensil stress for fast ice (does not do anything yet)
1109    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
1110        for LSR: move checking overlaps out of JFNK-if-block
1111    o pkg/atm_phys:
1112      - move copy of grid and dynamical fields out of atm_phys_driver.F into
1113        new S/R ATM_PHYS_DYN2PHYS.
1114      - fix level height for Linear Free-Surf case (to be consistent with
1115        fixed-in-time pressure levels).
1116    o pkg/mom_common (bottomdrag):
1117      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
1118        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
1119        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
1120    o pkg/shelfice (u/v_drag):
1121      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
1122      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
1123        (now similar to shelfice_u_drag.F)
1124      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
1125        from mom_vecinv.F (similar to mom_fluxform calls).
1126    o pkg/mom_common (bottomdrag):
1127      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
1128      - add options for alternative discretisation of velocity norm in quadratic
1129        bottom drag: averaging of grid-cell-center KE to U.point and V.point
1130        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
1131        improves when averaging only the other component (e.g. vVel for U bottom
1132        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
1133      - add options (bottomVisc_pCell) to account for partial-cell in bottom
1134        friction (no-slip BC) thus getting the true distance from the bottom;
1135        off by default since this also reduces model stability (explicit bottom
1136        friction). Changes produce different machine truncation with linear-drag
1137        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
1138        front_relax (bvp & mxl, 10 & 11 digits).
1139    o model/src & mom pkgs:
1140      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
1141        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
1142      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
1143        just copy level Nr value to level Nr+1.
1144    o doc:
1145      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
1146    o pkg/shelfice:
1147      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
1148        SHELFICE.h: move array shelficemass to init_varia, initialise
1149        from array shelficemassinit, which is set in init_fixed and
1150        has option to be set from file; introduce array
1151        shelficeMassDynTend array, set thru file in init_fixed
1152      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
1153        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
1154        pkg/streamice
1155      - shelfice_thermodynamics.F: call shelfice_step_icemass if
1156        SHELFICEMassStepping = .true.
1157      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
1158    
1159    checkpoint65h (2014/12/17)
1160    o verification/global_ocean.90x40x15, global_ocean_ebm:
1161      - update to generic controls.
1162    o pkg/ctrl:
1163      - ctrl_map_ini_genarr.F: test for igen>0
1164      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
1165      - move gentim2d part of ctrl_map_ini_genarr.F to
1166        new separate routine : ctrl_map_ini_gentim2d.F
1167      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
1168        add time variable weights and cyclic controls (time mean,
1169        seasonal cycle, etc) capabilities to gentim2d
1170    o pkg/ecco:
1171      - move reading of error, conversion to weights from
1172        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
1173    o global_oce_llc90, cs32:
1174      - activte sbo.
1175      - CTRL_SIZE.h : add maxCtrlProc.
1176      - activate the new genctrl capabilities.
1177      - update following reorganization of global_oce_input_fields.tar.gz  
1178    o pkg/ctrl/ctrl_ad_diff.list:
1179      - add missing ctrl_init_rec.f
1180    o tools/OAD_support/keepOriginal:
1181      - add ctrl_init_rec.F
1182    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
1183      - avoid recomputations of xx_gentim2d_dummy.
1184    o momentum diagnostics:
1185      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
1186        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
1187    o pkg/seaice/seaice_lsr.F:
1188      - fix computation of BU/BV, make sure they are non-zero, only necessary
1189        for cubed sphere exchanges and SEAICE_OLx/y>0.
1190        This makes calling s/r fill_cs_corner_rl obsolete (removed).
1191    o verification/global_ocean.cs32x15/input.seaice
1192      - add test for strong implicit coupling and restricted addtive Schwarz
1193        methods for LSR
1194      - update results/output.seaice.txt
1195    o verification/tutorial_global_oce_biogeo:
1196      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
1197        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
1198        update output_adm,_oadm,_tlm.txt
1199    o pkg/dic:
1200      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
1201      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
1202        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
1203    o verification/tutorial_global_oce_biogeo:
1204      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
1205        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
1206        update output_adm,_oadm,_tlm.txt
1207    o eesupp/src:
1208      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
1209        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
1210    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
1211      LSR (following Hutchings et al. 2004)
1212      - introduce zetaZ as a global variable (requires adjustments in
1213        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
1214        in seaice_calc_viscosities.F
1215      - new flag SEAICEuseStrImpCpl (default off)
1216      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
1217        momentum equations
1218      - JFNK-solver (preconditioner) adjusted to allow using this method
1219        (where it does not have any positive effect)
1220    o pkg/seaice
1221      - add overlap for restrictive additive Schwartz method also to LSR, but
1222        turn it off by default (because it only seems to work for non-cubed
1223        sphere/llc topologies)
1224    o pkg/autodiff
1225      - add extra exchanges in addummy_in_steppging also for mnc output
1226    o pkg/seaice:
1227      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
1228        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
1229    o pkg/obcs:
1230      - add option to specify domain-connected piece Id along OB though files
1231        (for now, only used to diagnose PhiVel; default =1 -> global correction)
1232      - modify obcs_diag_balance.F to process each connected-part separately;
1233        exclude OB where Id = 0 but keep the full divergence there (-> constant
1234        Psi along this portion of OB and all inflow derived from grad(Phi))
1235      - add example of OB-conect files in verification/so_box_biogeo/input.
1236    o pkg/diagnostics:
1237      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
1238      a) use non zero matrix element across OB and solve for Phi 1 grid point
1239         outside OB (i.e, where tracer OBCS are applied).
1240      b) global imbalance of inFlow/outFlow across OB: instead of modifying
1241         velocity across OB, spread it uniformly along the OB in the RHS.
1242    
1243    checkpoint65g (2014/11/19)
1244    o pkg/diagnostcis:
1245      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
1246    o pkg/my82,pp81,kl10:
1247      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
1248        field diffKr as background diffusivity to set minimum diffusivity value.
1249    o pkg/seaice:
1250      - add new parameter SEAICEuseEVPrev (for revisited EVP by
1251        Bouillon et al 2013)
1252      - add SEAICE_evpAlpha/Beta to namelist
1253      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
1254        involve trivial re-ordering of divisions/multiplications that should not
1255        have any effects, but ... they do change the results of lab_sea.hb87 so
1256        that only 2 digits of agreement remain, in line with the general
1257        instability/fragility of the evp-code. For now, I do not care and just
1258        update the verification experiment
1259    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
1260      - remove xx_genarr2d_numsmooth etc
1261      - use xx_genarr2d_preproc etc instead
1262      - carry out smooth_correl2D at initialization stage rather than during
1263        time stepping.
1264      - get smoothOpNb from xx_gentim2d_preproc
1265    o global_oce_cs32 :
1266      - add test of generic ecco capabilities.
1267    o pkg/exf/exf_getsurfacefluxes.F :
1268      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
1269    o pkg/ctrl,ecco :
1270      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
1271        is defined.
1272    o pkg/seaice: add diagnostics for Delta (deformation parameter)
1273    o model/src:
1274      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
1275        diffusivity (background) is specified but ignored.
1276    o verification:
1277      - in testreport, convert hostname to lower case for default output dir name
1278    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
1279    o pkg/dic: add modifications from Hajoon:
1280      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
1281      - light attenuation: add self-shading effect by climatological Chlorophyll
1282        (read from file).
1283    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
1284        compiles when SEAICE_ALLOW_DYNAMICS is undefined
1285    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
1286        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
1287        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
1288        approach where CPP_OPTIONS.h includes an omnipotent
1289        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
1290    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
1291        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
1292    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
1293        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
1294        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
1295    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
1296      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
1297      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
1298      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
1299      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
1300    o pkg/ctrl,ecco,exf :
1301      - remove variables associated with NON-generic costs,
1302        unless ECCO_CTRL_DEPRECATED is defined.
1303      - remove NON-generic NON-obcs controls,
1304        unless ECCO_CTRL_DEPRECATED is defined.
1305    o pkg/ctrl : added ctrl_local_params.h
1306    o pkg/ecco : added ecco_local_params.h
1307    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
1308        experiments, which will progressively be removed once the
1309        experiments are revised to use only generic controls/costs.
1310    
1311    checkpoint65f (2014/10/13)
1312    o pkg/ctrl, ecco, seaice : minor changes in headers
1313    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
1314        cost function and control capabilities added since checkpoint65c.
1315    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
1316    o pkg/ecco: increase modularity and improve logic
1317      - ecco_toolbox.F (new) : basic operations that are often used,
1318        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
1319        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
1320      - cost_gencal.F (new) : determine filnames and records.
1321      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
1322      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
1323        and exploit the above functions leading to more compact code.
1324      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
1325      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
1326        using_ers, using_gfo, using_mdt is now only defined within gencost)
1327    o pkg/ecco: extend generic cost capabilities
1328      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
1329        capabilities via gencost_preproc (+ _c,_i,_r related params),
1330        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
1331        gencost_outputlevel arguments to cost_generic
1332      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
1333        and active_read, making room for gencost_preproc to take effect.
1334        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
1335      - pkg/ecco/cost_generic.F :
1336        compute and store misfit maks*(model-data) in localdif that is
1337        then used in cost and for output, output misfit if outlev.GT.0
1338      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
1339        rather gencost_barfile for deciding whether to write barfile
1340      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
1341      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
1342        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
1343      - pkg/ecco/ecco_summary.F : report gencost variables
1344      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
1345    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
1346    o pkg/ecco: internal re-organization
1347      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
1348        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
1349        mv relevant variables definition from ecco_cost.h to ecco.h,
1350        make sure gencost routines only include ecco.h)
1351      - throughout : add missing CCP switches, rm unused variables,
1352        and rm un-necessary CPP switches
1353      - throughout gencost routines : replace modelstartdate with
1354        gencost_startdate when needed
1355      - cost_bp_read.F : use arguments, instead of common blocs
1356        so that it can be used also by (new) cost_gencost_bpv4.F
1357      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1358      - ecco_phys.F : compute etanFull
1359      - ecco_readparms.F : rename using_topex as using_tpj, add
1360        bpv4-grace to gencost list, initialize added parameters
1361      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
1362    
1363    checkpoint65e (2014/09/28)
1364    o pkg/obcs:
1365      - replaced the just-added CPP options with run-time variables
1366        (see pkg/obcs/OBCS_PARAMS.h for details)
1367    o pkg/obcs:
1368      - add additional CPP options for sponge boundary layers
1369        (see pkg/obcs/OBCS_OPTIONS.h for details)
1370    o pkg/atm_phys:
1371      - implement simple (obliquity only, assuming circular planet orbit)
1372        seasonal cycle for incoming insolation ; used when run-time parameter
1373        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1374    o pkg/exf, pkg/ecco, pkg/ctrl:
1375      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1376      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1377      - implement gentim2d for xx_tauu, xx_tauv
1378    o pkg/ctrl, pkg/ecco :
1379      - fix and complement the generic controls implementation
1380    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1381        pkg/shelfice/shelfice_thermodynamics.F,
1382        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1383        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1384      - add weight in CTRL_GET_GEN calls
1385    o pkg/ctrl :
1386      - ctrl_get_gen.F : add weight as input parameter, and apply
1387        it directly rather than using smooth_correl2Dw (to be retired).
1388      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1389    o pkg/ctrl :
1390      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1391        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1392      - re-activate ctrl_summary (call in ctrl_init.F)
1393    o pkg/ctrl/ctrl_cost_gen.F :
1394      - fix CCP brackets, remove un-necessary myiter, mytime
1395    o pkg/ecco, pkg/ctrl :
1396      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1397      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1398      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1399      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1400    
1401    checkpoint65d (2014/09/15)
1402    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1403      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1404        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1405    o pkg/ctrl/ctrl_map_ini_genarr.F :
1406      - remove compilation failure
1407      - replace hard coded example
1408      - use ctrl_map_ini_gen2D, 3D
1409    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1410      - on/off switch based upon xx_genarr2d_weight,3d
1411    o src/packages_init_variables.F :
1412      - regroup pkg/estimation calls
1413      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1414        (moved to ctrl_init_variables)
1415    o cost/cost_init_varia.F :
1416      - remove ecco_cost_init_varia
1417        (moved to ecco_init_varia)
1418    o ctrl/ctrl_init_variables.F :
1419      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1420      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1421    o ctrl/ctrl_map_ini.F :
1422      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1423        (moved to ctrl_init_variables)
1424    o ctrl/ctrl_map_ini_ecco.F :
1425      - remove ECCO_PHYS (mv to ecco_init_varia)
1426      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1427    o ecco/ecco_ad_diff.list :
1428      - add ecco_init_varia.f
1429    o ecco/ecco_init_varia.F
1430      - new routine
1431    o pkg/streamice:
1432      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1433        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1434      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1435    o pkg/generic_advdiff:
1436      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1437    o pkg/exf:
1438      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1439         xxg_precip capability
1440      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1441    o pkg/ctrl:
1442      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1443    o model/src/load_fields_driver.F :
1444      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1445        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1446    o OpenAD verification experiments:
1447      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1448        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1449        for now, only in pkgs used in OpenAD verification experiments.
1450      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1451        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1452        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1453        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1454    o OpenAD verification tests:
1455      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1456      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1457        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1458      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1459        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1460    o model/src & generic_advdiff:
1461      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1462        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1463        dynamics requires valid tracer forcing only over tile interior but, for
1464        some diagnostics, may need to extend it over 1 point in tile halo region.
1465      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1466        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1467        setting in temp/salt/ptracer_integrate.F
1468    o pkg/dic:
1469      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1470        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1471        in gchem_forcing_sep.F
1472    o pkg/autodiff & obcs:
1473      - add storage of current OB values for U & V (was already done for T & S).
1474    
1475    checkpoint65c (2014/08/30)
1476    o pkg/dic:
1477      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1478        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1479        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1480    o verification:
1481      - new experiment testing OBCS and DIC pkgs, using params & output from
1482        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1483        passage: take OBCS from the last year of a 2 yrs simulation and initial
1484        conditions from t=1.yr while keeping the same forcing.
1485    o model/src:
1486      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1487        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1488    o pkg/diagnostics (Stats-Diags):
1489      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1490        a) refine region where stats are computed, excluding where arrhFac=0 ;
1491        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1492        c) extend regional stats over the region edges (for U or V pt location).
1493    o pkg/gchem:
1494      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1495        pkg/dic is currently changing/updating ptracers values beyond the OB).
1496    o verification (hs94):
1497      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1498        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1499        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1500        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1501    o pkg/ptracers:
1502      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1503        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1504      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1505        with AB-2 code (so that it get tested).
1506    o model/src:
1507      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1508        with AB-2 code (previously only available with AB-3 code).
1509        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1510        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1511        there, by calling CYCLE_AB_TRACER).
1512    o pkg/generic_advdiff:
1513      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1514        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1515        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1516        S/R temp/salt/ptracers_integrate.F
1517    o model/src & pkg/ptracers:
1518      - remove common block variables gT,gS (in DYNVARS.h), except when
1519         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1520      - remove common block variable gPtr.
1521    o model/src & pkgs:
1522      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1523         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1524         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1525         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1526      + change accordingly all calling S/R.
1527      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1528        in S/R temp/salt/ptracers_integrate.F
1529    o pkg/seaice:
1530      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1531        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1532      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1533        in seaice_lsr
1534      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1535        in s/r seaice_lsr_calc_coeffs
1536    o pkg/mdsio:
1537      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1538        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1539        too long (e.g., > MAX_LEN_FNAM/2 )
1540    
1541    checkpoint65b (2014/08/12)
1542    o pkg/matrix:
1543      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1544    o model/src:
1545      - fix initialisation of geothermalFile; compile geothermal-flux code in
1546        natl_box verification experiment.
1547    o model/src & pkg/down_slope:
1548      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1549      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1550        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1551        results at machine truncation level: update output of experiments
1552        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1553    o pkg/diagnostics (Stats-Diags):
1554      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1555        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1556        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1557        times (but Min,Max and StD are still wrong).
1558    o model/src:
1559      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1560        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1561    o model/src:
1562      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1563        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1564        arrays are already updated while adjustments (filters, conv.adjustment) are
1565        still applied later, in S/R TRACERS_CORRECTION_STEP.
1566    o model/src:
1567      - store in common bloc array "rhoInSitu" the virtual potential temperature
1568        anomaly that is used to compute geopotential: this make the atmos code
1569        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1570    o pkg/seaice/seaice_lsr.F
1571      - rename integer variable ilcall to ipass (that's what it is called
1572        in the residual diagnostics
1573      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1574        default) for improved non-linear convergence of the first few steps
1575      - adjust a few comments and add new ones to explain some of the store
1576        directives
1577    o pkg/generic_advdiff (& ptracers):
1578      - re-work the code to check for valid advection scheme and for minimum
1579        size of overlap (now stored in local common bloc in gad_advscheme.F)
1580    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1581      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1582      - add an auxilliary variable "bet" and fix store directives and keys in
1583        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1584        less exact gradients in my tests); but there are still
1585        recomputation warning (although gradients are sort of OK), when
1586        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1587        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1588      - update verification experiments lab_sea.
1589      - change some comments in S/R seaice_calc_viscosities
1590    o model/src:
1591      - if staggerTimeStep=T, always apply exchange to velocity field in
1592        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1593        (independent of using multi-dim advection or not); no effect on FWD run
1594        but affects AD results (at machine truncation level): update output of
1595        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1596        and isomip (oad: 12.d).
1597    o pkg/generic_advdiff:
1598      - stop if doAB_onGtGs is set to FALSE but ignored
1599      - refine warning related to stability of tracer time-stepping
1600        regarding internal wave dynamics.
1601      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1602        on staggerTimeStep & implicitIntGravWave (will now get a warning
1603        if potentially unstable).
1604    o pkg/kl10:
1605      - add new pkg "kl10" for mixing due to internal wave breaking, from
1606        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1607        (contribution from Jody Klymak), tested in verification experiment
1608        verification/internal_wave/input.kl10/
1609    o isomip experiment:
1610      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1611        (input.htd) and update the output.
1612    o cd_code experiments:
1613      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1614        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1615        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1616        update the corresponding output.
1617    o pkg/seaice:
1618      - reduce the number of include files and store directives in
1619        S/R seaice_lsr_tridiagu/v
1620      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1621        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1622        get rid off one store directive (a TAF bug?)
1623      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1624        S/R seaice_lsr_tridiagv to change the loop range for consistency
1625      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1626      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1627        S/R seaice_lsr_tridiagu/v (requires update of
1628        offline_exf_seaice/input.dyn_jfnk)
1629    
1630    checkpoint65a (2014/07/27)
1631    o model/src:
1632      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1633        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1634        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1635        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1636    o model/src:
1637      - collect momentum forcing tendency into local 2-D array (passed as argument
1638        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1639        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1640        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1641      - collect T & S forcing tendency into local 2-D array (passed as argument to
1642        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1643        affects results at machine truncation level (e.g., ocean: if using
1644        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1645        correction due to vertical advection).
1646      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1647        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1648        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1649        obcs_ctrl (ad & fwd grd @ 12 & 7).
1650    o pkg/ptracers & diagnostics:
1651      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1652        title (to avoid some unexpected truncation); sort out ptracers diags units.
1653      - collect ptracer forcing tendency into local 2-D array (passed as argument
1654        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1655    
1656    checkpoint65 (2014/07/18)
1657    o pkg/fizhi:
1658      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1659        affects results at machine truncation level. Update output of experiments
1660        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1661    o pkg/seaice: more clean up
1662      - rename TAF common block tapes to be more consistent and remove
1663        unnecessary duplicates
1664      - add store directives to remove more recomputations, but use smaller
1665        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1666        The idea behind this flag is to reduce the memory footprint when the
1667        adjoint of the LSR is not required. As of now, defining the flag
1668        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1669        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1670        For experiment offline_exf_seaice, this means on a linux box with gfortran
1671        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1672        this experiment):
1673        > size mitgcmuv_ad
1674        text    data        bss     dec        hex
1675        5100659 1216  220458952  225560827  d71c8fb
1676        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1677        but only a moderate increase of 36% for global_ocean.cs32x15:
1678        text    data        bss     dec        hex
1679        6695027 1648 1014578664 1021275339 3cdf6ccb
1680        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1681      - note: there are still recomputations in global_ocean.cs32x15 and
1682        offline_exf_seaice and the gradient agreement changes (gets a
1683        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1684      - in general, the AD gradients still are wrong
1685    o OpenAD
1686      - clean up code_oad/ directories somewhat by moving files
1687        dontCompile, dontTransform, keepOriginal to OAD_support/
1688    o model/src:
1689      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1690        (not currently tested): add dissipation terms before NLFS rescaling of
1691        tendencies (previously done after).
1692    o pkg/diagnostics:
1693      - write stats-diags in ascii file with more digits (same as in monitor).
1694    o pkg/down_slope:
1695      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1696        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1697    o model/src:
1698      - new file "apply_forcing.F" containing all the code previously in
1699        external_forcing.F, but with new argument list: pass, as new argument,
1700        the current level tendency array to update (instead of a direct update
1701        of the common bloc array). Change the corresponding calls.
1702      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1703        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1704    o pkg/seaice/seaice_lsr, a little bit of clean up
1705      - rearrange some code blocks, so that now all calculations for
1706        setting up the right-hand-sides done within one single block
1707        (I find that easier to read and understand)
1708      - rearrange freedrift-code to reduce the number of ifdefs
1709      - adjust some indentations and comments
1710    
1711    checkpoint64z (2014/07/10)
1712    o model/src and several pkgs:
1713      - change argument list of all S/R called from external_forcing.F and
1714        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1715        to pass, as argument, the current level tendency array to update
1716        (instead of a direct update of the common bloc array).
1717      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1718      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1719    o pkg/seaice/seaice_lsr.F
1720      - always initialize local arrays in seaice_lsr_tridiagu/v
1721      - add more local tapes to seaice_lsr_tridiagu/v
1722      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1723        keep it in bi/bj loop; this seems to be essential
1724      - gradients are still wrong but only by 4-7 orders of magnitude
1725        instead of 15 orders of magnitude, lab_sea improves a little
1726    o pkg/seaice
1727      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1728        generates unnecessary code in seaice_lsr_ad
1729      - add more store directives in seaice_lsr to avoid unnecessary code
1730        in seaice_lsr_ad
1731      - exclude some residual computations in seaice_lsr when
1732        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1733        in seaice_lsr_ad
1734      - add more storing, a new tape (model/src/the_main_loop.F) and
1735        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1736        and klockey should be checked by a specialist)
1737      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1738        and update lab_sea after previous changes in pkg/seaice below
1739    o pkg/autodiff:
1740      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1741        viscFacInAd : run time parameters allowing for adjoint switches
1742        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1743    o pkg/ecco:
1744      - introduce cost_gencost_boxmean.F that computes a box mean
1745        temperature (for use in adjoint sensitivity studies).
1746    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1747    o pkg/mom_common/mom_calc_visc.F:
1748      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1749    o pkg/seaice/seaice_summary.F:
1750      - statement for SEAICEadjMODE now in autodiff_readparms.F
1751    o pkg/seaice:
1752      - remove some store directives and add new ones in an effort to get
1753        finally rid off the recomputation warnings. This is successful
1754        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1755        defined (i.e. no extensive recomputation warnings left), but there
1756        are still too many recomputations on the solver iteration level
1757      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1758      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1759        SEAICE_SIZE.h
1760      - add a store directive in S/R seaice_calc_viscosities
1761    o pkg/seaice (ITD code):
1762      - fix definition of Hlimit for multi-threaded case
1763      - use double precision arithmetic to compute Hlimit: this affects results;
1764        update output of experiment seaice_itd.
1765    o replace content of verification/seaice_itd
1766      - instead of a 1D column use the configuration of offline_exf_seaice
1767        to test the ice thickness distribution code with ridging
1768      - this is a first shot at this experiment
1769      - change of some defaults of ridging parameters SEAICEhStar (from
1770        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1771        and lot of new comments.
1772    
1773    checkpoint64y (2014/06/20)
1774    o pkg/seaice/seaice_reg_ridge.F:
1775      - modify the regularization of very small volumes of ice; only check
1776        total volume HEFF, and do not apply correction to individual ice
1777        classes because that leads to funny patterns in the heat and fw-fluxes
1778        into the ocean. Adjust seaice_itd/results/output.txt
1779      - replace nITD by SEAICE_multDim in loop-ranges
1780    o pkg/exf:
1781      - add code to process the case field period = -12. with UV interpolation.
1782      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1783        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1784    o verification/global_with_exf:
1785      - switch all fields period to -12. (was previously untested) in input/data.exf
1786        (but keep secondary test ".yearly" unchanged); update the reference output.
1787    o pkg/cal:
1788      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1789    o pkg/exf:
1790      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1791        to replace logical switch "exf_verbose"
1792      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1793    o pkg/sbo:
1794      - update from Katherine Quinn: evaluate mass directly from density and SSH
1795        (budget using Finite Volume method) instead of from bottom pressure.
1796      - allow testreport to collect few selected SBO output ; tested in exp.
1797        global_ocean.90x40x15 (after updating the results, to include SBO output).
1798      - fix some multi-threading issues (in output part).
1799    o model/src & most packages:
1800      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1801      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1802        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1803        "data.{pkg}" exist ; and leave the S/R (return) just after.
1804      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1805        + call LAND_READPARMS from packages_readparms.F
1806    o pkg/seaice:
1807      - remove code that resets useThSice in S/R seaice_readparms and
1808        replace it by a warning in S/R seaice_check
1809      - remove parameter MULTDIM, replace with nITD and runtime
1810        parameter SEAICE_multDim (still hard-wired to nITD if
1811        SEAICE_ITD is defined)
1812    
1813    checkpoint64x (2014/05/24)
1814    o verification/lab_sea:
1815      - update adjoint and TLM output following changes to pkg/salt_plume
1816      - un-do the update after putting back local recip_Cp in few places.
1817    o pkg/salt_plume: modifications by An Nguyen:
1818      - add capability to do brine rejection (salt-plume) as function of
1819        volume+tracers (instead of only salinity tracer).
1820      - conserve volume by exchanging volume from each kLev to above to
1821        accommodate in-coming brine volume
1822      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1823      - switch KPP surf buoyancy due to brine forcing to 3-d
1824        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1825      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1826      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1827        in East/West Arctic.
1828    o pkg/sbo:
1829      - incorporate modifications from Katherine Quinn to enable the use of sbo
1830        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1831        output for future testreport verification (unfinished).
1832    o pkg/atm_phys:
1833      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1834        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1835        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1836    o pkg/seaice
1837      seaice_calc_ice_strength.F: modify expression to avoid divisions
1838        (affects truncation)
1839      seaice_do_ridging.F: clean up the insectarium
1840      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1841      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1842      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1843      - add some debugging information and error messages (warnings)
1844    o model/src: modifications relatd to atmosphere p*:
1845      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1846      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1847        of vertical profile tRef in geopotential background and anomaly.
1848      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1849        and pkg/atm_phys.
1850      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1851        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1852    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1853    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1854        not used right now, but can be used in BGC packages to fix conservation.
1855    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1856        other packages too.
1857    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1858        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1859    o model/src:
1860      - since we have several heat capacity (even in model/src), define "recip_Cp"
1861        as local variable (no longer in common block) to avoid any confusion.
1862      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1863    o pkg/exf:
1864      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1865        air density as function of air Temp, Humidity and atm pressure.
1866    
1867    checkpoint64w (2014/05/02)
1868    o verification:
1869      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1870        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1871        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1872        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1873        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1874    o model/src: for atmosphere in p* coords:
1875      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1876      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1877        but not yet activated.
1878    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1879      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1880      - this changes the results (but not for any verification experiment, because
1881        none tests this), but avoids having an extra field in the restart files
1882    o pkg/seaice: remove global variable TICE (not needed)
1883      - replace by TICES or local variable where necessary (cost_seaice_test,
1884        seaice_diagnostics_state)
1885      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1886      - use specific read/write routines for reading and writing individual leves
1887        of a multilevel field
1888    o pkg/ctrl & model/inc:
1889      - move additional anomaly fields of control vars (related to options:
1890         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1891        from DYNVARS.h into new header file: CTRL_FIELDS.h
1892    o pkg/seaice: some small modifications to the ridging code
1893      - make fw2ObyRidge a global variable and add the freshwater flux to
1894        seaice_growth
1895      - pass actual thickness from seaice_prepare_ridging, so that it is
1896        computed only in one place and compute it in the same way as in
1897        seaice_growth
1898      - initialise more fields in seaice_do_ridging that where cause floating
1899        point exceptions over land
1900    o pkg/seaice: preparations for ridging code and first real ridging code
1901      - move most of "PART 1" of S/R seaice_growth into a new and separate
1902        S/R seaice_reg_ridge that will both regularize the state variable after
1903        advection call the actual ridging routine;
1904      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1905        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1906      - remove ridging code from seaice_advdiff
1907      - clean up remaining part 1 of seaice_growth in an attempt to make it
1908        more readable (this is probably subjective)
1909      - call seaice_itd_redist once in the initialisation phase to have the initial
1910        conditions in the correct category
1911      - finally: add new ridging routine for ITD code
1912    
1913    checkpoint64v (2014/04/11)
1914    o pkg/ecco:
1915      - add runtime parameters mdt[start,end]date[1,2]
1916      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1917    o pkg/seaice:
1918      - make deltaC a global variable, so that it can be used in ridging code
1919      - first step towards ridging: introduce new routines that compute
1920        ice strength based on ridging parameters
1921      - add diagnostic for HSNOWITD
1922      - add opnWtrFrac as a global variable (required for ridging scheme)
1923    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1924      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1925        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1926    o verification/hs94.1x64x5:
1927      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1928      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1929    o autodiff:
1930      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1931        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1932        For now, only in pkgs used in verification/hs94.1x64x5.
1933      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1934        which are specific to TAF/TAMC).
1935      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1936        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1937        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1938      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1939        building mitgcmuv_ad (make adAll).
1940    o pkg/ecco:
1941      - cost_gencost_seaicev4.F:
1942         reformulate proxy cost as function of sst and local param SEAICE_freeze
1943         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1944      - add stop statement if old names siv4-[sst,vol] are used
1945      - add snapshots + cost reports for atmospheric longwave
1946      - remove factor 0.1 in front of wtau[u,v]
1947      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1948         ALLOW_TMI_SST_COST_CONTRIBUTION
1949    o pkg/atm_phys:
1950      - add some diagnostics for Short-wave and for convection S/R.
1951    o pkg/seaice/seaice_growth:
1952      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1953        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1954      - rearrange loop order for better vector code in the same code block
1955      - rewrite the floeDiameter formula to have fewer divisions
1956      -  (miraculously) none of this changes the results of seaice_itd
1957    o pkg/smooth:
1958      - move param smooth2Ddiffnbt to pkg/ecco
1959    o pkg/salt_plume:
1960      - salt_plume_frac.F:
1961         clean up local param names
1962         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1963    o pkg/rw:
1964      - add RS version of S/R READ_MFLDS_LEV.
1965    o pkg/streamice:
1966      - fix the restart test by writing/reading pickup_streamice files.
1967    o pkg/seaice:
1968      - refine checks for jfnk-related parameters
1969      - comment out if statement with SEAICEuseIMEX parameter as long as there
1970        is no IMEX code to avoid confusion and surprises
1971    
1972    checkpoint64u (2014/03/07)
1973    o verification/MLAdjust:
1974      - rename secondary test suffix:
1975         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1976         0.leithD -> AhFlxF  + switch to flux-form
1977         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1978         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1979    o pkg/mom_vecinv:
1980      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1981        to be before mom_calc_visc.F)
1982      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
1983      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
1984        this is simpler for the adjoint and for diagnostics.
1985    o model/src + pkg/momentum:
1986      - add input files for  2-D additional Western and Southern cell-edge wall
1987         (e.g., to add "thin-wall" where it is =1).
1988      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
1989        using 2nd hFacZ that is computed from initial (fix domain) hFac
1990      - known limitations of thin wall implementation: not yet coded for sigma
1991        coords; not working with CD-scheme neither.
1992    o pkg/seaice:
1993      - rename recently introduced parameters from (wrong name) AB to
1994        BDF (backward difference time discretisation)
1995      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
1996    o tools/adjoint_options:
1997      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
1998    
1999    checkpoint64t (2014/02/01)
2000    o pkg/ecco
2001      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
2002        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
2003      - replace hard-coded record number and period which only work for monthly
2004        with read-in runtime param that works for other periods (month,day,year)
2005    o pkg/thsice
2006      - corrected store directive fixes thsice adjoint gradient checks
2007    o genmake2 & testreport:
2008      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
2009        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
2010        Update testreport accordingly. No need to set "export OPENAD=true"
2011        in adjoint_options/adjoint_oad anymore (will be removed later).
2012    o pkg/shelfice:
2013      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
2014        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
2015        so that surface forcing applies to k=kSurf if using pkg/shelfice.
2016    o pkg/ctrl, pkg/grdchk, pkg/ecco:
2017      - Changes to make GENARR more modular (i.e. invisible if not used)
2018    o model/src/temp_integrate.F and salt_integrate.F
2019      - re-include store directives that were removed on Dec 27th.
2020    o model/src/external_forcing_surf.F
2021      - add storage directives for EmPmR and PmEpR to avoid recomputation of
2022        seaice_model in the adjoint that is problematic when seaice_model is
2023        turned off in the adjoint. The resolved issue dated back to July when
2024        EXTERNAL_FORCING_SURF call was moved.
2025        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
2026    o pkg/exf/exf_check.F
2027      - fix a small bug again (originally found by Wentao Liu, now found again)
2028      - streamline error output
2029    o pkg/streamice and aim_v23:
2030      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
2031        Apple's /usr/bin/cpp knows what to do:
2032        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
2033        Target: x86_64-apple-darwin13.0.0
2034    
2035    checkpoint64s (2014/01/05)
2036    o tools/adjoint_options:
2037      - switch to fastopt.net TAF server (instead of default fastopt.de) for
2038        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
2039    o model/src:
2040      - remove some unnecessary TAF storage directives in forward_step.F and
2041        in dynamics.F (note: not always removed by TAF, e.g., double storage
2042        of kappaRU,kappaRV in former version of dynamics.F).
2043    o model/src & pkg/ptracers:
2044      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
2045        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
2046        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
2047      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
2048      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
2049      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
2050    o useSingleCpuInput separates single-CPU input from single-CPU output;
2051        for now only implemented for in exf_interp_read.F
2052    o verification/advect_xy:
2053      - fix missing EXCH call in local version of ini_salt.F and update output.
2054    o momentum diagnostics:
2055      - fix which deltaT is used in Total-Tendency diagnostics.
2056      - fix typo in diagnostics for momentum tendency from AB.
2057    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
2058        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
2059    
2060  checkpoint64r (2013/12/08)  checkpoint64r (2013/12/08)
2061  o verification/*/results:  o verification/*/results:
# Line 112  o verification: Line 2161  o verification:
2161  o pkg/cost:  o pkg/cost:
2162    - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL    - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
2163      (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:      (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
2164      o this fixes global-sum value if multi-threads (since GLOBAL_SUM_TILE_RL      o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
2165        cannot be applied to var in common block).        cannot be applied to var in common block).
2166      o allows to get results independent of tile-per-proc setting (if using      o allows to get results independent of tile-per-proc setting (if using
2167        slower GLOBAL_SUM_SEND_RECV option).        slower GLOBAL_SUM_SEND_RECV option).

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