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revision 1.1889 by dimitri, Mon Jul 1 16:55:57 2013 UTC revision 1.2333 by jmc, Fri Jun 2 17:50:35 2017 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint66h (2017/06/02)
8    o pkg/seaice:
9      - add new routines to compute stress tensor components and stress tensor
10        divergence to be reused in s/r seaice_lsr and s/r seaice_calc_lhs
11      - change names of diagnostics SIsigI/II (commonly used for invariants)
12        to SIsig1/sig2 (more common for principal components) to avoid confusion
13    o pkf/exf:
14      - add a stop if useRelativeWind with un-updated uwind/vwind (e.g., constant);
15        similarly, stop if rotateStressOnAgrid with constant wind-stress.
16    o pkg/seaice:
17      - remove (comment out) diagnostics SIuwind,SIvwind,SIfu,SIfv (duplicate of
18        EXFuwind,EXFvwind,oceTAUX,oceTAUY) and point them to their equivalent.
19      - add diagnostics of wind-stress over seaice (SItaux,SItauy) and seaice
20        fraction weighted wind stress over ocean+seaice (SIatmTx,SIatmTy).
21    o pkg/diagnostics:
22      - small piece of code to rename (old) diagnostics, when namelist is processed.
23    o model/src:
24      - new run-time param (useMin4hFacEdges) to select method for setting hFacW,S:
25        originally, set as minimum of adjacent hFacC factor ; now (new default)
26        computed from rSurfW,S and rLowW,S by applying same rules as for hFacC.
27        Only matters when useShelfIce=T with particular ice-shelf cavity geometry.
28    o pkg/seaice:
29      - add momemtum advection, off by default, still in test phase
30        most of the momentum advection code is adapted and reused from mom_vecinv
31    o pkg/mom_vecinv:
32      - pass these runtime flags:
33        selectVortScheme, highOrderVorticity, upwindVorticity, useJamartMomAdv
34        as formal parameters to s/r mom_vi_u/v_coriolis, mom_vi_u/v_coriolis_c4,
35        so that these routines can also be used in pkg/seaice.
36    
37    checkpoint66g (2017/04/24)
38    o model/src:
39      - more robust ordering of column thickness integral (=Sum_k(drF*hFac) )
40        to get same expression (regarding machine truncation) in different places
41        in ini_masks_etc.F (e.g., rSurfC,W,S is now exactly zero when it should).
42        Update forward output of experiments: global_ocean.cs32x15 (all 5 except
43        viscA4), isomip (x3), tutorial_global_oce_in_p & tutorial_plume_on_slope.
44    o pkg/shelfice:
45      - ALLOW_SHIFWFLX_CONTROL: move setting of maskSHI from shelfice_update_masks.F
46        to shelfice_init_fixed.F
47      - change S/R SHELFICE_UPDATE_MASKS to SHELFICE_INIT_DEPTHS (still called from
48        ini_masks_etc.F for now) to update ocean upper boundary position according
49        to ice-shelf topography (instead of directly updating hFacC).
50    o model/src:
51      - move call to CTRL_INIT & CTRL_ADMTLM from the middle to the bottom of
52        packages_init_fixed.F to allow other pkgs to set mask and weight fields.
53    
54    checkpoint66f (2017/04/06)
55    o model/src:
56      - add specific run-time param to select level of printed plot-field-maps,
57        set by default to debugLevel. Remove internal param "printDomain".
58    o pkg/seaice:
59      - add flag to add snow mass to seaiceMassC/U/V, the default is
60        SEAICEaddSnowMass=.FALSE., not to change previous results
61    o pkg/bling
62      - Bug fix in bling_production regarding unit conversion for diagnostics
63        being put in the wrong place
64    o model/src:
65      - add back recomputation of rSurfW & S to ensure consistent column thickness
66        (needed for rStar) between Sum_k(hFac*drF) and rSurf-rLow, for now only
67        when using pkg/shelfice; was initially added on 2012/06/01 (ini_masks_etc.F
68        revision 1.51) but was removed accidentally on 2014/02/08 (v1.53).
69    o pkg/autodiff:
70      - clean-up "checkpoint.flow"
71    o pkg/rw (Contribution from Jody Klymak):
72        option to set mds file suffix as function of time in simulation:
73        *) new input parameter "rwSuffixType" (read from PARM03 namelist)
74           to select file suffix format; by default (=0), use iteration number;
75        *) add simple routine to return file suffix according to rwSuffixType;
76        *) in model/src and in most pkgs (except: atm2d, fizhi, regrid & streamice),
77           use new S/R to get file suffix, except for debug output file (diagFreq)
78           and pkgs offline & rbcs input files.
79    o pkg/rw:
80      - uniform processing of "I10" suffix across writing fld routines; used to
81        simplify debug writing of cg2/3d_b/x in solve_for_pressure.F & post_cg3d.F
82        (similar to cg3d.F, cg3d_ex0.F)
83    o pkg/mom_vecinv:
84      - highOrderVorticity in selectVortScheme=2 case: fix c4 coeff in splitted
85        vorticity flux (keep same sum in case vBarXm=vBaXp, uBarYm=uBarYp).
86    o pkg/bling:
87      - Many small changes intended to clean the code.
88        Unnecessary ADJOINT_SAFEs removed ;
89        removed BLING_COST.h BLING_CTRL.h bling_cost.F ;
90        diagnostics added.
91    
92    checkpoint66e (2017/03/14)
93    o pkg/exf:
94      - interpolation with #undef EXF_INTERP_USE_DYNALLOC: move buffer size
95        definition outside EXF_PARAM.h in new header file: EXF_INTERP_SIZE.h;
96        use fixed size buffer (passed to S/R EXF_INTERP & EXF_INTERP_UV) to
97        avoid any dynamic allocation ;
98      - S/R EXF_CHECK: add new check & stop when file-name is defined but not
99        read-in ; add warning when file is read-in but not used within pkg/exf ;
100        + check for buffer-size (if #undef EXF_INTERP_USE_DYNALLOC).
101      - update exf_summary.F (print {FLD}RepCycle).
102    o verification/global_with_exf:
103      - switch on exf interpolation in AD test (just like the forward test)
104    o pkg/mom_vecinv:
105      - add storage directives to avoid recomputations within mom_vecinv.F
106        which were generating seg. fault with gfortran -devel
107    o pkg/ctrl, pkg/smooth:
108      - initialize array halos which were generating seg. fault with
109        gfortran -devel in adjoint mode
110    o pkg/exf:
111      - for each input field, enable to specify a field specific repeat-cycle
112        ({FLD}RepCycle) which defaults to pkg/exf main "repeatPeriod".
113    o verification/lab_sea:
114      - update AD results of primary test and noseaicedyn test after switching
115        to new version of TAF (5.3.13 vs 5.3.2 before); agreement with gradient
116        check stays about the same.
117    o pkg/exf:
118      - fix bug in exf_zenithangle.F for cases select_ZenAlbedo > 0 with useCAL=T.
119      - exf_check: MAX_LAT_INC need only be "loc_nlat-1", not equal to loc_nlat
120    o pkg/bling, USE_EXFCO2 code:
121      - add parameter "apco2RepCycle" (set to pkg/exf "repeatPeriod" by default);
122      - update calls to EXF S/R (use new version: EXF_INIT_FLD & EXF_SET_FLD).
123    o pkg/exf:
124      - rename S/R EXF_INIT to EXF_INIT_VARIA ;
125      - add arguments: fldName (for debug msg) and fldRepeatCycle (set to
126        repeatPeriod) to S/R EXF_SET_UV and to S/R EXF_SET_GEN (renamed EXF_SET_FLD)
127        and update calls in pkg/exf calling S/R (exf_getffields.F & exf_getclim.F) ;
128      - add argument: fldName (for debug msg) to S/R EXF_INIT_GEN (renamed
129        EXF_INIT_FLD) and update calls in exf_init_varia.F
130      - For now, for backward compatibility, keep a simplified version of S/Rs
131        EXF_SET_GEN & EXF_INIT_GEN in file exf_set_gen.F
132      - add and pass new arguments: fldName (for debug msg) and fldRepeatCycle
133        to S/R EXF_GetFFieldRec ; update calls in pkg/obcs/obcs_exf_load.F
134    o tools/genmake2:
135      - replace "bc -l" (only used once) by "expr" (already used).
136    o verification/global_ocean.cs32x15:
137      - turn off pkg/cal (useCAL=F) in secondary FWD exp. "icedyn".
138        Note: exf setting (data.exf) can be compared to other exf secondary exp
139        "seaice" (kept with useCAL=T) which has same time dependent forcing.
140    
141    checkpoint66d (2017/02/13)
142    o pkg/exf:
143      - remove setting of useCAL=T when using pkg/exf (useEXF=T); add warning
144        early on (in packages_boot.F) to stress this change in pkg setting.
145      - In (most) verification exp. that use pkg/exf, add useCAL=.TRUE. to data.pkg
146    o model/src:
147      - move call to ecco_phys to end of time step; this may induce minor
148        cost function changes by shifting time averages by one time step
149        for some variables; this revision resulted in changed adjoint results
150        in MITgcm_contrib/verification_other/global_oce_cs32
151    o pkg/exf:
152      - Change EXF_READ_EVAP to only activate code within #ifdef ALLOW_ATM_TEMP ;
153        this prevents to read evap when ALLOW_ATM_TEMP is undef and other fields,
154        e.g. precip, are not available.
155    o pkg/flt:
156      - flt_init_varia.F: use pickupSuff if specified
157      - add code (within #ifdef DEVEL_FLT_EXCH2) and test case as a first,
158        intermediate, step towards completing pkg/exch2 support within pkg/flt;
159        ifdef DEVEL_FLT_EXCH2 then:
160        - flt_init_fixed.F: comment out stop
161        - flt_exch2.F: conserve ipart, jpart (grid coordinates)
162        - exch2_recv_get_vec.F: transform ipart, jpart (grid coordinates)
163        - flt_mapping.F: attempt to fix longitude diagnostic near date-line
164        - flt_init_varia.F: hack initialization (for testing purposes w. LLC90)
165    o tools/genmake2 & pkg/pkg_depend:
166      - define new type of pkg dependency rule ("=pkg_x"), less strict than
167        the "+" rule, that add the dependent pkg (pkg_x) unless it's disabled
168        (-pkg_x in packages.conf).
169      - change pkg/exf dependency rule from "exf +cal" to "exf =cal";
170      - add "+cal" to dependency list of pkg/ecco (needed to compile).
171      - simplify FWD experiment "offline_exf_seaice" by removing pkg/cal.
172    o utils/matlab:
173      - adding ocean_basin routines for defining basin masks.
174    o pkg/exf:
175      - new S/R EXF_GETFFIELD_START replacing EXF_GETFIELD_START, but with more
176        arguments, allowing to check (and stop) if parameter setting of
177         {FLD}startdate1 & date2 and of {FLD}StartTime are consistent with
178        useCAL= T or F. For now, kept a simplified version of EXF_GETFIELD_START
179        for backward compatibility.
180      - change accordingly calls in exf_init_fixed.F + default {FLD}StartTime in
181        exf_readparms.F ; apply same changes to pkg/icefront (for SGRunOff field).
182    o pkg/bling (USE_EXFCO2 code):
183      - fix missing setting of apco2StartTime according to apco2startdate1 & date2
184        by adding a call to S/R EXF_GETFFIELD_START.
185    o pkg/exf:
186      - allows to compile without pkg/cal (but disabled by current dependency
187        rules, i.e., default "pkg/pkg_depend"). Minimal changes to enable to
188        run with useCAL=F ; this involves setting directly {FLD}StartTime instead
189        of {FLD}startdate1 & date2 ; consistency check not yet coded.
190    o verification/global_ocean.cs32x15:
191      - fix all data.exf for a shift of 1 day in all field startdate1 so that it now
192        corresponds to middle of 1rst month; update outputs (2 fwd + 3 adm + 3 tlm).
193    o pkg/exf:
194      - allow to use EXF_ZENITHANGLE without pkg/cal + simplify (saving some
195        calculations); change FWD experiment global_ocean.cs32x15
196        (#define ALLOW_ZENITHANGLE) to test/check that this code compiles.
197    o pkg/exf:
198      - In preparation for addition to NAMELIST, rename internal (_RL) parameter
199         {FIELD}startdate to {FIELD}StartTime
200        Note: new name also fit better the content, i.e, a start time in second.
201    o eesupp/src:
202      - add 1 argument to S/R EEBOOT & EEBOOT_MINIMAL for interface with ESMF
203    o pkg/exf:
204      - add option ALLOW_READ_TURBFLUXES (and corresponding set of parameters)
205        to allow to read-in Sensible & Latent Heat flux ;
206      - simplify pkg/exf main options:
207        1) move small piece of code (case ALLOW_ATM_TEMP undef) out of
208           exf_bulkformulae.F into exf_wind.F so that exf_bulkformulae.F is
209           compiled only when both ALLOW_ATM_TEMP & ALLOW_BULKFORMULAE are defined;
210        2) make call to EXF_RADIATION and to EXF_WIND independent of CPP option
211           ALLOW_BULKFORMULAE which now only applies to S/R EXF_BULKFORMULAE ;
212        3) improve options documentation in EXF_OPTIONS.h.
213    o pkg/ecco:
214      - cost_gencost_customize.F,ecco.h,ecco_phys.F,ecco_readparms.F, and
215        ecco_summary.F: add passive tracer cost functions to gencost;
216        m_ptracer and m_boxmean_ptracer
217    o pkg/ctrl:
218      - ctrl_map_forcing.F: pass myIter and myTime to ctrl_map_forcing as input
219        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing; add to list
220        of implemented gentim2d contol parameters: xx_qnet, xx_empmr, xx_qsw,
221        xx_sst, xx_sss, xx_pload, xx_saltflux, xx_fu, xx_fv, xx_fe, xx_fn
222    o model/src:
223      - forward_step.F: pass myIter and myTime to ctrl_map_forcing as input
224        parameters; move myIter .EQ. nIter0 inside ctrl_map_forcing
225    o pkg/exf:
226      - exf_getffields.F: add to list of implemented gentim2d contol parameters:
227        xx_lwflux, xx_swflux, xx_evap, xx_apressure, xx_areamask
228    
229    checkpoint66c (2017/01/19)
230    o verification:
231      - add new option "-src" to testreport to only produce source code (*.f),
232        including taf output src code (if using '-adm'/'-tlm' option).
233    o pkg/exf:
234      - add saltflx :: Net upward salt flux in psu.kg/m^2/s
235    o pkg/diagnostics:
236      - add run-time variable diagMdsDir to specify a subdirectory for
237        diagnostic output when mds is being used and mdsioLocalDir is not.
238    o pkg/mnc:
239      - mnc_utils.F: edit stop message
240    o pkg/autodiff:
241      - autodiff_ini_model_io.F: PRINT_MESSAGE, clean-up comments, add _*_MASTER,
242        add HAVE_SYSTEM bracket around system call to mkdir
243    o pkg/profiles:
244      - profiles_findunit.F, profiles_init_fixed.F, profiles_interp.F,
245        profiles_readparms.F: call ALL_PROC_DIE before 'stop'
246      - profiles_ini_io.F: use PRINT_MESSAGE, clean-up comments, add _*_MASTER,
247        add HAVE_SYSTEM bracket around system call to mkdir
248    o pkg/smooth:
249      - smooth_filtervar2d.F, smooth_filtervar3d.F: call ALL_PROC_DIE before 'stop'
250      - smooth_init2d.F, smooth_init3d.F: move print statements to readparms
251      - smooth_readparms.F: add cleaner print statements from smooth_init?d.F
252    o pkg/exf:
253      - check: count errors and stop cleanly at the end (call to ALL_PROC_DIE);
254        issue error message when climsst_interpMethod.GT.0 and climsst_lon_inc > 500
255        generalize tests on interpMethod, nlat, and lon_inc to all exf variables.
256      - summary: skip detailed field report if not used (empty file-name).
257    o tools/xmakedepend:
258      - In case line editor "ed" is missing, switch to "sed" command to clean-up
259        Makefile from previous dependencies (anything after "# DO NOT DELETE" line).
260    o pkg/exf:
261      - change definition of "hflux" input file to always include Short-Wave;
262        this is now consistent with hflux computation (if using bulk-formulae)
263        and hflux diagnostic & documentation (in EXF_FIELDS.h).
264    
265    checkpoint66b (2016/12/01)
266    o model & momentum pkgs:
267      - implement fully implicit bottom friction combined with implicit surf.
268        pressure, for now, only in hydrostic formulation:
269        + to use: compile with #define ALLOW_SOLVE4_PS_AND_DRAG in CPP_OPTIONS.h
270          and run with selectImplicitDrag=2 ;
271        + currently missing diagnostics of bottom drag and vert. viscosity tendency;
272      - partial implicit time-stepping (bot. friction + vert. visc first, then
273        surf. press) corresponding to selectImplicitDrag=1 should be applicable
274        to NH formulation but not available until we solve for surf. pressure
275        increment (instead of full etaN).
276      - change exp. global_ocean.cs32x15.thsice to test implicit bottom drag
277        with implicit vertical viscosity.
278    o pkg/seaice: add linear remapping scheme (Lipscomb 2001) to ITD model
279      - this is a first version that includes many regularisations that may
280        not all be necessary, to be sorted out,
281      - turned on by runtime parameter SEAICEuseLinRemapITD (true by default)
282      - change one verification experiment in seaice_itd to use and test new code
283      - seaice_growth: catch a case where the argument of log can be zero
284        or smaller (important for code stability)
285    o model/src:
286      - modify SOLVE_DIAGONAL_LOWMEMORY version of solve_tridiagonal.F
287        & solve_pentadiagonal.F to enable to re-used inverse matrix for solving
288        similar A.X'=Y' system (with same matrix A) in subsequent calls;
289        switch based on errCode (In/Out) argument value; in calling routines,
290        initialise errCode before first call.
291    
292    checkpoint66a (2016/10/18)
293    o pkg/bling:
294      - BLING package now loads in atmospheric pCO2 file using exf package routines
295        Enable with #define USE_EXFCO2 in BLING_OPTIONS.h
296    o model/src & pkg/ptracers:
297      - with INCLUDE_IMPLVERTADV_CODE defined, also call MOM_U,V_IMPLICIT_R &
298        GAD_IMPLICIT_R (instead of IMPLDIFF) when just implicitViscosity and
299        implicitDiffusion (respectively) are used (even without momImplVertAdv
300        or temp,salt,PTRACERS_ImplVertAdv).
301    o model/src & generic_advdiff:
302      - add parenthesis in main diagonal calculation of implicit vertical
303        diffusion matrix (impldiff.F & gad_implicit_r.F).
304        This affects results at machine truncation level; update output of many
305        verification experiments (31 fwd ; 10 adm ; 8 tlm ; 3 oad).
306    o pkg/mom_commom & generic_advdiff:
307      - add deep atmosphere and anelastic scaling factor in implicit vertical
308        advection routines (mom_u,v_implicit_r.F & gad*_impl*_r.F).
309    o model/src:
310      - remove few unnecessary temp array copies in solve_tridiagonal.F
311        & solve_pentadiagonal.F
312    
313    checkpoint65z (2016/09/28)
314    o pkg/seaice: fix multithreading for seaice_fgmres.F
315      - remove unecessary variables from common blocks
316      - use extra dimension MAX_NO_THREADS for all variables of the Krylov space
317        basis, that are stored in commom blocks (including integer variable i1)
318      - clean up code a little by removing commented lines that refer to
319        original code
320      - turn on multi-threaded test for experiment offline_exf_seaice.dyn_jfnk.
321    o MITgcm manual:
322      - add uptodate pkg/ecco documentation to the manual (section 8.1; ecco.tex),
323        preliminary documentation for generic controls (8.3; ctrl.tex),
324        a placeholder for smooth (8.4; smooth.tex), and comment out the deprecated
325        ecco_costfunction.tex
326    o pkg/ecco:
327      - update and cleanup list of CCP options
328      - re-assign gencost_mask to specify masks rather than gencost_errfile; 'c'
329        is now always passed to cost_generic; gencost_mask is now MAX_LEN_FNAM
330      - add checks that retired run-time options are not used, and in relation
331        to gencost_mask and gencost_errfile
332      - finish deprecating gencost_scalefile, gencost_smooth2Ddiffnbt, and
333        gencost_nrecperiod
334      - fix m_eta computation for virtual salt flux case
335      - add m_horflux_vol case (selected via gencost_barfile) that computes
336        transports via cost_gencost_boxmean (gencost_flag=-3)
337      - use gencost_flag more systematically (i.e., avoid using gencost_name)
338        for code switches (aside from physical variable selection)
339    o pkg/seaice: make seaice_fgmres.F fit for multithreading; this first
340      attempt appears to be a bit of a hack and my need some repair down the road
341    o pkg/exf:
342      - interpolation near South Pole: fix criteria on input field latitude.
343    o pkg/icefront & pkg/exf:
344      - move setting of icefront Sub-Glacial RunOff forcing (currently unused)
345        from pkg/exf (read from data.exf) to pkg/icefront (read from data.icefront)
346    o pkg/exf:
347      - replace CPP option ALLOW_EXF_OUTPUT_INTERP with run-time parameter
348        "exf_output_interp" (in namelist: EXF_NML_04); change output file name
349        (add suffix "_out" instead of a prefix); keep same record number as in
350        input file but always write record 1 first (to avoid a STOP in I/O S/R).
351        Change output file content by writing interpolated field before applying
352        land-sea mask (helpful for debug).
353      - 2 compon. vector interpolation with rotation: apply scaling factor on
354        each compon. (Eastward and Northward) just before rotation.
355    o pkg/bling:
356      - Cleaned package. Removed not needed code and comments.
357      - adjoint example now works
358        (MITgcm_contrib/verification_other/global_oce_biogeo_bling/code_ad)
359    o pkg/ptracers:
360      - add Bruno Deremble's code to complete the linear surface correction
361        for tracer conservation;
362      - enabled for individual ptracers by PTRACERS_linFSConserve(iTr)=.TRUE.
363    
364    checkpoint65y (2016/07/29)
365    o pkg/debug (stats):
366      - change GLOBAL_SUM to GLOBAL_SUM_TILE (result independent of tile to
367        proc/thread mapping);
368      - fix Min & Max for case where 1 thread has only empty tiles;
369      - use RL variable to count number of wet grid points (with big domain,
370        can be too large to fit into integer*4).
371    o pkg/monitor:
372      - use RL variable to count number of wet grid points (but used only for del2)
373      - add new routine to compute Advective CFL within tracer time-stepping with
374        writing delayed until next monitor output.
375    o pkg/obcs:
376      - fix bug in OBCS_BALANCE_FLOW (OBCS_balanceFacN misspelled OBCS_balanceFacW)
377    o pkg/cal:
378      - calandar-dump: treat case myTime < timePhase in the same way as in
379        eesupp/src/diff_phase_multiple.F (when not using calandar-dump).
380    o pkg/dic & seaice:
381      - fix compilation of ocean component for coupled atm+ocn model with
382        seaice dynamics & dic.
383    
384    checkpoint65x (2016/06/11)
385    o add a license text file in main MITgcm tree.
386    o added pkg/bling:
387      - intermediate complexity biogeochemical model
388      - see bling_description.txt for details
389      - verification experiment is global_oce_biogeo_bling (for now, in
390        Contrib/verification_other/); tested daily on baudelaire with gfortran.
391      - add entry point in pkg/gchem for new pkg "bling".
392    o pkg/seaice: fix tensile stength computation
393      - replace global field tensileStrength by tensileStrFac
394      - tensileStrFac can be computed once in S/R seaice_init_varia
395      - fortunately that does not affect any verification results
396    
397    checkpoint65w (2016/05/12)
398    o pkg/ctrl/ctrl.h: fix a comma in common block list, so that code compiles
399         with ECCO_CTRL_DEPRECATED defined
400    o verification/global_ocean.cs32x15:
401      - change secondary test "viscA4" to also test "selectP_inEOS_Zc=3"
402        with "selectNHfreeSurf=1".
403    o model/src (non-hydrostatic free-surface):
404      - More "natural" expression of NH free-surface term (case selectNHfreeSurf=1):
405        was: tmpSurf/(1+tmpSurf); changed to: 1/(1+Gamma) with Gamma=1/tmpSurf.
406      - Calculate surface vertical velocity after 2-D solver adjustment (accounts
407        for EmPmR if RealFreshWaterFlux); used in RHS (cg3d_b) if exactConserv
408        and used to compute dPhiNH (in post_cg3d.F) if selectNHfreeSurf=1.
409        This fixes EmPmR contribution when selectNHfreeSurf=1 & RealFreshWaterFlux.
410      - Update output (changes at machine truncation level) of verification exp:
411        exp4 (11 digits for cg2d), global_ocean.cs32x15.viscA4 (11.d),
412        short_surf_wave (13.d) and tutorial_deep_convection.smag3d (12.d).
413    o pkg/seaice: ITD code
414      - fix picking up from a single category model by initialising
415        heff/area/hsnowITD = 0. in seaice_itd_pickup.F
416      - split a long warning message in seaice_check_pickup.F into two lines,
417        because NEC SX-ACE cannot deal with the long line.
418    o model/src:
419      - fix missing dPhiNH in pressure_for_eos.F (case: selectP_inEOS_Zc=3)
420    o pkg/seaice:
421      - add missing checks for SEAICE_ALLOW_KRYLOV and SEAICE_ALLOW_BOTTOMDRAG
422    o pkg/seaice:
423      - add basal stress as parameterisation for grounding ice
424        following Lemieux et al. (2015)
425      - turn on by setting new parameter SEAICEbasalDragK2 to a value
426        larger than 0. Lemieux et al. (2015) recommend 15.
427      - The adjoint complains with extra recomputations so there is also a
428        new cpp-flag SEAICE_ALLOW_BOTTOMDRAG that is undefined by default in
429        order to postpone the problem
430      - compile the new code in lab_sea
431    o verification/halfpipe_streamice:
432      - update both TAF and OpenAD adm output (machine truncation differences)
433    
434    checkpoint65v (2016/04/08)
435    o verification/advect_xz:
436      - increase overlap size from 3 to 4 and add new secondary test for PQM
437        advection scheme (with mono & wino limiter).
438      - change main exp. to test PPM (with weno limiter) adv.scheme on Temp.
439    o model/src:
440      - new parameters "top_Pres" & "seaLev_Z" (replacing Ro_SeaLevel and recently
441        added phi0Ref) to set vertical axis origin and phiRef origin;
442        keep Ro_SeaLevel for backward compatibility (with a warning).
443       According to coordinate and fluid type:
444        OCN in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(1), @ the top)
445        ATM in Z: top_Pres(Ref) (=rhoConst*PhiRef(1)), seaLev_Z (=rF(Nr+1) @ bottom)
446        OCN in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(Nr+1)/g, @ the top)
447        ATM in P: top_Pres (=rF(Nr+1)), seaLev_Z (= PhiRef(1)/g, @ the bottom)
448      - remove Ro_SeaLevel from ATM experiment parameter files;
449      - in tutorial_global_oce_in_p, remove Ro_SeaLevel and set top_Pres to the
450        complement; update output.txt (changes at machine truncation level).
451    o pkg/seaice/seaice_evp.F
452      - simplify computation of deltaZ and zetaZ to simple averaging following
453        Bouillon et al. (2013). This removes a lot of code, but also changes
454        verification experiment lab_sea.hb87 -> updated
455    
456    checkpoint65u (2016/03/14)
457    o pkg/generic_advdiff:
458      - from Darren: add PPM and PQM advection schemes (number 40-42 and 50-52)
459        with 2 types of limiter (see: Engwirda & Kelley, submit. to JCP);
460        Note (from Darren): unlimited PPM/PQM scheme (40 & 50) are just for
461        testing and not for actual use.
462    o model/src:
463      - add parameter "phi0Ref" to specify reference [pressure/geo] potential at
464        origin r = rF(1);
465      - add options (parameter selectP_inEOS_Zc) to select which pressure to use
466        in EOS for height coordinate: enable to include NH Pressure or to use
467        more accurate pressure vertical profile; options not linked to EOS type
468        (as previously, e.g., JMD95P/JMD95Z) but set default according to EOS type;
469      - start to implement variable gravity (along vertical): for now, only with
470        z-coords (not even z*).
471      - add Ideal Gas equation of state for height coordinate.
472      - update OpenAD output (affected at machine truncation level) of exp:
473        global_ocean.90x40x15, OpenAD (std) and tutorial_global_oce_biogeo.
474    o pkg/exf:
475      - add ALLOW_EXF_OUTPUT_INTERP cpp switch to output the result
476        of exf interpolation (before any rescaling, rotation or interpolation
477        to velocity point) for each field that gets loaded from file. This option
478        identically mimics the input file organization (e.g. record numbers in year
479        by year input files) besides the change in horizontal grid.
480      - add rotateStressOnAgrid run-time switch so that wind stress fields
481        can be provided on the A-grid in zonal/meridional direction and
482        rotated on the fly. This only applies to the case when the exf
483        interpolation is off and rotateStressOnAgrid is false by default.
484    o model/src:
485      - rename internal parameter "useDynP_inEos_Zc" to "storePhiHyd4Phys" (since
486        it's also used with pkg/atm_phys) and add few more parameters (but still
487        inactive, src code yet to come)
488    
489    checkpoint65t (2016/02/10)
490    o pkg/atm_phys:
491      - from Ruth Geen: add optical depth dependence on CO2 concentration.
492    o model/src:
493      - fix vertical inter/extra-polation of density factor rhoFacF (for anelastic)
494        for the case setCenterDr=T (delRc set from "data"); add output of rhoFacC&F.
495        Update output of exp. deep_anelastic (changes at truncation level).
496    o tools:
497      - add a hack in "remove_comments_sed" (used only with TAF) for recent
498        version of OpenMPI (shipped with FC.23): comment out the new header
499        file "mpif-sizeof.h" which causes problems to TAF.
500    o pkg/seaice:
501      - change the termination criterion so that maxits (SEAICElinearIterMax)
502        has an effect
503      - unify iteration parameters for implicit solvers (JFNK and Picard)
504        SEAICEnonLinIterMax replaces SEAICEnewtonIterMax/NPSEUDOTIMESTEPS
505        SEAICElinearIterMax replaces SEAICEkrylovIterMax/SOLV_MAX_ITER
506        SEAICEpreLinIterMax replaces SOLV_MAX_ITER in preconditioner
507        SEAICEpreNL_IterMax replaces NPSEUDOTIMESTEPS in preconditioner
508        SEAICEnonLinTol     replaces JFNKgamma_nonlin
509      - remove S/R SEAICE_FGMRES_DRIVER and put content into S/R SEAICE_JFKN
510      - add new Picard-Krylov solver, compile with SEAICE_ALLOW_KRYLOV and
511        use with SEAICEuseKrylov
512    o pkg/seaice/seaice_lsr.F
513        fix small bug: replace zetaZ by zetaZloc in S/R seaice_lsr_rhsu/v; only
514        relevant if SEAICEuseStrImpCpl=T, and even then it does not seem to have
515        an effect.
516    o pkg/seaice: add two new parameters
517      - SEAICEuseLSR to simplify the logic in seaice_dynsolver (this
518        parameter is not in any namelist)
519      - SEAICEusrPicardAsPrecon to allow s/r seaice_lsr to be used as
520        a preconditioner for the non-linear Newton iteration of the JFNK
521        solver
522    o pkg/seaice/seaice_lsr.F: replace 1./SEAICE_deltaTdyn with recip_deltaT,
523      affects some experiments at truncation level:
524      - global_ocean.cs32x15.icedyn (11 digits),
525      - global_ocean.cs32x15.seaice (11 digits),
526      - seaice_itd (12 digits), seaice_itd.lipscomb07 (12 digits) -> update
527      - also update global_ocean.cs32x15 adjoint and tangent-linear results
528    o pkg/salt_plume & pkg/thsice:
529      - for coupled  set-up with pkg/thsice in ATM and pkg/salt_plume in OCN,
530        connect salt_plume flux to ATM-OCN coupling pkgs interface:
531       a) in ATM: also cumulate salt-plume flux in S/R THSICE_SALT_PLUME (for
532         export to coupler interface) even without compiling pkg/salt_plume ;
533       b) in OCN: apply coupler salt-plume flux to pkg/salt_plume field
534         (saltPlumeFlux) just before exch call, in S/R SALT_PLUME_DO_EXCH.
535    o pkg/dic:
536      - use the updated seaice fraction (from seaice pkgs) for DIC forcing
537        instead of the previous time-step value ; done in new S/R DIC_FIELDS_UPDATE
538        called from the top of dic_biotic_forcing.F (instead of in DIC_FIELDS_LOAD);
539      - move also update with values from ATM-OCN Coupler in the same new S/R
540        (previously done in ocn_apply_import.F).
541    o tools/adjoint_options:
542      - specify explicitly "-f77" or "-f90" in default ad-optfile since TAF (default)
543        has been changed on Jan 14, 2016.
544    o pkg/ggl90:
545      - add alternative discretisation of vertical shear (off by default), to
546        compute the mean (@ grid-cell center) of vertical shear compon instead of
547        vertical shear of mean flow (@ grid-cell center).
548      - add correct parenthesis in ALLOW_GGL90_SMOOTH code to get the same truncated
549        results on adjacent faces of cubed-sphere grids; this fix the restart.
550    o pkg/atm_compon_interf:
551      - skip time-ave over cpl_atmSendFrq of Sea-Level Pressure (atmSLPr) and just
552        pass last value, stored directly before export to CPL ;
553        Note: this affects results of Coupled set-up where OCN uses useImportSLP=T
554      - remove atmSLPr from pickup files (no longer needed for restart)
555    
556    checkpoint65s (2016/01/13)
557    o eesupp & genmake2:
558       - first check for Function ETIME and, if it fails, then check for subroutine
559         ETIME and consistent output; use the appropriate version in timers.F
560    o model/src:
561      - to check restart test, add option to apply EXCH to U,V earlier, just before
562        integr_continuity; turned off by default.
563    o pkg/dic:
564      - remove CPP option USE_ATMOSCO2 (not needed)
565    o tools/tst_2+2:
566      - try to ignore difference between +0 and -0 in binary file, causing test
567        to fail for no good reason.
568    o eesupp & genmake2:
569      - put back modif from Jinxuan Zhu - change etime fct call to S/R call -
570        but also check (in genmake2) that test runs and returns meaningful results.
571    o coupler pkgs:
572      Finish implementation of optionally-exchanged variable switches (started on
573       Nov 12) with addition of few more exchanged fields, including 2-way exchange
574       of pkg/thsice vars to allow to use seaice dynamics (from pkg/seaice) & seaice
575       advection in OCN component; this requires sequential coupling.
576      coupler (pkg/atm_ocn_coupler):
577      - add argument msgUnit and iter number to CPL_SEND/RECV_ATM/OCN_FIELDS
578        routines (useful for debug).
579      - only export/import optionally exchanged fields (RunOff, seaice, Salt-Plume
580         flux, DIC fields) if corresponding switch is ON.
581      - add option to export RunOff to OCN (to use for DIC river input)
582      - add 2-way thSIce vars exchange; check for consistent cpl_sequential setting.
583      components (pkg/atm_ & ocn_compon_interf):
584      - to save memory space in ATM & OCN comp: add some #ifdef ALLOW_${PKG} around
585        optionally exchanged fields; add a check & stop in cpl_readparms.F.
586        ATMCPL.h: ALLOW_LAND for RunOff, ALLOW_THSICE for seaice, ALLOW_AIM for CO2;
587        OCNCPL.h: ALLOW_SALT_PLUME, ALLOW_DIC for DIC, ALLOW_THSICE for 2-W thsice.
588      - rename:   fracIce     -> sIceFrac_cpl (<- match coupler var name)
589        + in ATM: fracIceTime -> sIceFracTime ; seaIceTime -> sIceMassTime.
590      - add 2-way thSIce vars exchange ; add Salt-Plume flux ; add RunOff in OCN.
591      - hold in common block coupler optionally-exchanged variable switch
592        and set default "useImportXXX" accordingly; + check & stop if inconsistent.
593      - add diagnostics for all imported fields from coupler (in both OCN & ATM);
594        this is intended to replace the OCN cplFldtave.* output files (not updated
595        to contain new additional exchanged fields).
596    o pkg/dic:
597      - fix an other bug (also from 2014/08/30) in dic_atmos.F, in dic_int1=3 code.
598    o pkg/thsice:
599      - when coupled to ATM (useCoupler) with thSIce_skipThermo=T, skip reading
600        and writing of thsice pickup files.
601    o pkg/atm_compon_interf:
602      - move all field individual export-call out of cpl_export_import_data.F
603        into new S/R ATM_EXPORT_FIELDS
604    o pkg/atm_compon_interf:
605      - store state variables (for now, only thSIce fields) just before beeing
606        exported (in cpl_export_import_data.F, like on ocean side) instead of from
607        atm_store_my_data.F like all exported fluxes.
608      - new version of pickup_cpl: write field names into meta file and read meta
609        file to find field postion in pickup. Also only write/read fields meeded for
610        restart (same logic as main pickup file ; also using pickupStrictlyMatch)
611    o pkg/dic:
612      - fix bug (added on 2014/08/30) in dic_atmos.F for the case dic_int1= 2 or 3.
613    o pkg/seaice: add new parameter SEAICEpressReplFac to choose between
614        pressure replacement method (=1., default) or original Hibler (1979) (=0.)
615        value can be from domain [0,1] to average between the two methods
616    o pkg/atm_phys:
617      - allow to provide 2-d map of albedo and mixed-layer depth from files (but
618        hold fixed in time).
619    
620    checkpoint65r (2015/12/21)
621    o pkg/seaice:
622        fix bug in tridiagonal solvers for SEAICE_OLx/y>0, this affects the JFNK
623        solver (offline.dyn_jfnk) and global_ocean.cs32x15.seaice -> updated
624    o pkg/seaice:
625      - fix a bug in computing areaS in (J-J -> J-1) that affects runs
626        when SEAICEscaleSurfStress=.TRUE.,
627      - apply areaW and areaS in S/R seaice_calc_lhs
628    o pkg/atm_phys:
629      - add diagnostics for 3-D, Nr+1 levels diagnostics of radiative fluxes
630        (shortwave & longwave, net & downward) and diagnostics of temp. tendency
631        for individual contribution (convection, LSC cond, radiation)
632      - add Ruth Geen etal, GRL 2016, radiation options (see paper supp.
633        information); activated with: solar_exponent=0. and wv_exponent=-1.
634    o pkg/ggl90:
635      - within IDEMIX add upper limit for horizontal group velocity to
636        avoid instability problems in the explicit horizontal diffusion term for
637        long time steps or high resolution
638    o pkg/diagnostics:
639      - simplify setting of local-array size in diagstats_output.F: uses "numLevels"
640        (from DIAGNOSTICS_SIZE.h) to allow to write out more than Nr levels.
641    o testreport:
642      - remove "-v" (verbose option) in default mpirun command.
643    o pkg/seaice/seaice_growth:
644      - catch potential division by zero in ITD code, does not change
645        verification results
646    o pkg/ecco:
647      - retire old codes to the Attic. The calls to retired functions are
648        left in a commented form in case they ever need to be re-activated.
649      - ecco_check.F: issue warning if any old CPP option is
650        defined that corresponds to retired codes -- then stop.
651    o pkg/atm_compon_interf:
652      - change seaice fraction (use for OCN dic surf.flux) stored and sent to
653        coupler: use last time-step value instead of average over cplSendFrq_iter
654        time-step, similar to what is done for seaIceMass.
655        This will affect results (pkg/dic) of coupled ATM-OCN+dic set-up.
656    o eesupp & genmake2:
657      - from Jinxuan Zhu: change etime fct call to S/R call (fix gfortran ETIME);
658        <= remove until a fix is found for some ifort version on ia32 machine.
659    o pkg/seaice/seaice_evp:
660      - refine residual computation
661    
662    checkpoint65q (2015/11/18)
663    o pkg/seaice/seaice_evp:
664      - fix residual computations so that they no longer affect the actual
665        simulation code
666      - fix seaice_readparams to be able to actually set new parameters
667        SEAICEaEVPcStar and SEAICEaEVPalphaMin, also fix logic a little
668    o model/src:
669      - fix wrong truncation (single prec) from "FLOAT" function in expressions
670        like: deltaT*FLOAT(myIter) when myIter is large:
671         a) replaced by DFLOAT (if not seen by TAF);
672         b) remove "FLOAT" and use implicit type conversion (if seen by TAF).
673    o pkg/aim_v23:
674      - write/read the expected CO2 pickups (from S/R AIM_DO_CO2): fix reading
675        when pickupSuff is set ; do write rolling pickups + at the end of the run.
676    o pkg/atm_ocn_coupler + ocn_compon_interf:
677      - in prep for using pkg/seaice Dyn in coupled set-up, implement sequential
678        coupling option-1: ATM -(cpl)-> OCN and then OCN -(cpl)-> ATM ;
679        add corresponding call in DO_OCEANIC_PHYS.
680    o coupler pkgs:
681      Start a new way to set-up optionally-exchanged variables (previously, only
682       there for exchange_DIC): switch on/off from 1 place, at run-time, in coupler
683       data.cpl (new) instead of at compile time in ATMIDS.h & OCNIDS.h ;
684       send switch to ATM & OCN compon before reading their own "data.cpl" (so that
685       compononent param default can be set accordingly).
686      Note: this new switch (cpl_exchange_[xxx]) is not a per variable switch
687       but rather applies to a group a fields (going both ways like for DIC)
688       and corresponds to an option of coupling config.
689      coupler (pkg/atm_ocn_coupler):
690      - change parameter file from "data" to "data.cpl" (in cpl_read_params.F),
691        and read namelist directly (without eessup S/R calls) instead of
692        in the very un-flexible old way, 1 param per line, in fixed order;
693      - add error-counter to track errors (e.g., missing "data.cpl") and to stop
694        cleanly in CPL_CHECK_CPLCONFIG
695      - add new coupling-exchange selectors (some not yet active) including
696        cpl_exchange_DIC (to set to 3 to replace atmCpl_exchange_DIC=T in ATMIDS.h
697                                             and ocnCpl_exchange_DIC=T in OCNIDS.h);
698      - add 2 new S/R (CPL_SEND_ATM/OCN_CPLPARMS) to send coupler-params to each
699        component ; called directly from coupler.F, after comp. registrations;
700      - rename few variable-ID names (in ATMIDS.h & OCNIDS.h):
701         atm/ocnSeaIceName --> atm/ocnSIceMassName ; atm/ocnFCO2Name ->
702          -> atm/ocnCO2FluxName ; atm/ocnWSpdName --> atm/ocnWindSpdName
703      components (pkg/atm_ & ocn_compon_interf):
704      - add ATM/OCN_CPL_OPTIONS.h in component pkgs and include the corresponding
705        CPP header file in all pkg source files.
706      - move checking of comp. configs out of cpl_exch_configs.F into new S/R
707        ATM/OCN_CHECK_CPLCONFIG;
708      - add error-counter to track errors (e.g., in "data.cpl") and to stop
709        cleanly in ATM/OCN_CHECK_CPLCONFIG;
710      - add new S/R CPL_IMPORT_CPLPARMS to import coupling-exchange selectors
711        from coupler ; called from initialise_fixed.F, after PACKAGES_BOOT and
712        before PACKAGES_READPARMS;
713      verification/cpl_aim+ocn/:
714      - update ATMIDS.h & OCNIDS.h (in shared_code) and use new parameter file
715        "data.cpl" for coupler (in input_cpl).
716    o eesupp/inc:
717      - change the MPI-global-sum default (in CPP_EEOPTIONS.h) to:
718        #define GLOBAL_SUM_ORDER_TILES (only affects MPI built of global_sum_tile.F)
719        to always cumulate tile local-sum in the same order (still uses
720        MPI_Allreduce like standard code).
721      - in verification experiment code, remove local CPP_EEOPTIONS.h_mpi files
722        that are now identical to standard version (in eesupp/inc).
723    o pkg/shelfice:
724      - add SHELFICETransCoeffTFile for initializing spatially varying
725        heat and salt transfer coefficients
726    o pkg/atm_compon_interf & ocn_compon_interf:
727      - combine into 1 (new) S/R CPL_EXPORT_IMPORT_DATA the two previous
728        S/R CPL_EXPORT_MY_DATA & CPL_IMPORT_EXTERNAL_DATA
729      - move bi,bj loops inside S/R OCN_STORE_MY_DATA
730    o pkg/atm_ocn_coupler:
731      - initialise to zero ATMVARS.h & OCNVARS.h arrays.
732    o pkg/rbcs:
733      - select RBCS-mask for Temp & Salt the same way as for pTracer ; this allows
734        to compile with maskLEN=1 when all tracers use the same RBCS-mask.
735      - add a short report (to STDOUT) about RBCS-mask settings.
736    
737    checkpoint65p (2015/10/23)
738    o pkg/seaice/seaice_evp.F: fix store directives and key computations, since
739        there is no adjoint test for EVP, we don't know what it does to the adjoint
740        solution, but at least there are no more recomputation warnings left
741    o pkg/seaice/seaice_evp.F: slight modification of averaging so that EVP stands
742        a chance of giving the same results as a fully converged VP (JFNK) solver
743    o tools/adjoint_options/adjoint_diva:
744      - fix bug (typo) in Tang-Linear FLAGS setting for MPI + DIVA
745    o pkg/streamice:
746      - spotted bug in streamice_driving_stress using dyG where should have been dxG
747    o pkg/exf:
748      - remove STOP statement that prevented to use wind or (wind-)stress
749        interpolation for constant-in-time forcing fields (wind/stress period = 0).
750    o pkg/seaice:
751      - replace SEAICE_EVP_USE_ADAPTATION by run time parameters, requires
752        5 additionals 2D fields and 6 new store directives
753      - change logic in seaice_readparms.F: EVP code can now be turned on in
754        various ways, setting SEAICE_deltaTev is no longer required,
755        alternatively set SEAICE_evpAlpha/Beta, SEAICEuseEVPstar, SEAICEuseEVPrev,
756        or SEAICEaEVPcoeff
757    o pkg/shelfice/shelfice_thermodynamics.F
758      - redefining uLoc/vLoc to u/v, instead of 2u/v
759    o pkg/seaice/seaice_evp.F: introduce "adaptive EVP" by Madlen Kimmritz
760      - this is an intermediate state of a truely converging EVP that has
761        the potential of outperforming implicit VP methods, I do not recommend
762        using it yet.
763      - for now, "adaptive EVP" is turned on by setting SEAICE_EVP_USE_ADAPTATION
764        and all parameters are hardwired
765      - for convergence it still requires very smooth regularisations, that means,
766        if SEAICE_DELTA_SMOOTHREG is defined, deltaCreg=deltaC+deltaMin, which is
767        different from the VP case with deltaCreg=sqrt(deltaC**2+deltaMin**2); also
768        specific averaging appears to be required, still subject to tuning
769      - still needs cleaning and I need to turn parameter into runtime parameters
770      - add code to compute and print residuals of iteration, compile with
771        defining ALLOW_SEAICE_EVP_RESIDUAL to enable it
772    o pkg/seaice/seaice_evp.F: fix a bug (factor of four in front of e12Csq)
773      that entered with r1.54 on Sep04, 2015, -> update results
774    
775    checkpoint65o (2015/09/14)
776    o pkg/mom_vecinv & mom_common:
777      - add deep-atmosphere geometry factor in mom_calc_visc.F + in routines
778        called from there.
779      - add anelastic and deep-atmosphere geometry factor in pkg/mom_vecinv ; this
780        allows to use Vector-Invariant form in deep atmos and anelastic formulation
781    o pkg/seaice: introduce fast ice parameterisation following Itkin et al. (2015)
782      and Koenig-Beatty+Holland (2012)
783      - two new parameters SEAICE_tensilFac and SEAICE_tensilDepth
784      - global 2D field tensileStrength, computed in seaice_calc_ice_strength
785      - requires an extra input argument for S/R seaice_calc_viscosities
786      - tensileStrength's depth dependence is different from Itkin et al. (2015)
787        (to be changed and played with, for now exponential)
788    o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
789      - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
790        by AREA according to Connelly et al. (2004), JPO.
791      - For EVP and the LSR solver, the implicit part of the drag term is
792        the only non-zero term in the denominator when there is no ice (which
793        prevented running the model with zero ice-ocean drag). If
794        SEAICEscaleSurfStress = .TRUE., this results in a division by zero
795        (or zero main diagonals BU/BV) which need to be caught. A practical
796        consequence is that for open water, the momentum equation reduce
797        to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if
798        they happen to be zero, often leading to a non-zero solution over
799        open water.
800    o pkg/seaice: revise EVP code (seaice_evp.F) in preparation for a more
801        efficient EVP method.
802      - introduce area-weighted averages for e12 (analogously to
803        seaice_calc_viscosities.F); this totally changes lab_sea.hb87 (2 digits
804        remain, but also changing the order of terms in the previous average
805        changed the results as much) -> update experiment
806      - add SEAICE_DELTA_SMOOTHREG code
807      - disentangle computation of zetaC/deltaC and zetaZ/deltaZ, also for
808        TEM-code
809      - adjust loop bounds so that only required fields are computed
810      - add new averaging code for zetaZ/deltaZ (again similar to
811        seaice_calc_viscosities.F), inactive by default for now (will change
812        results again), but will replace old code eventually
813    o eesupp/src:
814      - add an other alternative for multi-proc GLOBAL_SUM (in global_sum_tile.F)
815        to always cumulate tile local-sum in the same order
816        (option #define GLOBAL_SUM_ORDER_TILES in CPP_EEOPTIONS.h).
817        Still uses MPI_Allreduce (like standard code) but on array of tiles
818        and should be faster than GLOBAL_SUM_SEND_RECV code.
819      - switch almost all verification experiments that use GLOBAL_SUM_SEND_RECV
820        (defined in CPP_EEOPTIONS.h_mpi) to GLOBAL_SUM_ORDER_TILES instead.
821      - add CPP_EEOPTIONS.h_mpi with GLOBAL_SUM_ORDER_TILES defined in 14 more exp.:
822         aim.5l_cs, cheapAML_box, deep_anelastic, dome, fizhi-cs-32x32x40,
823         fizhi-cs-aqualev20, fizhi-gridalt-hs, global_ocean_ebm, matrix_example,
824         natl_box, solid-body.cs-32x32x1, tutorial_advection_in_gyre,
825         tutorial_baroclinic_gyre and tutorial_held_suarez_cs.
826    
827    checkpoint65n (2015/07/29)
828    o pkg/thsice:
829      - add a warning when used with pkg/aim but without updating SST
830        (stepFwd_oceMxL=F & useCoupler=F & tauRelax_MxL<>-1 ).
831    o pkg/offline:
832      - change where Offline-Fields are loaded, from load_fields_driver.F to
833        directly within FORWARD_STEP, just after updating iter number and time;
834      - move setting of GM and KPP diffusivity out of OFFLINE_FIELDS_LOAD into new
835        S/R OFFLINE_GET_DIFFUS that is called towards the end of DO_OCEANIC_PHYS;
836       These changes allow:
837        a) to recover exactly on-line results using deltaToffline=deltaTClock,
838        tested (using offlineIter0= nIter0 -1 and offlineTimeOffset= -deltaT/2)
839        both with Lin & Non-Lin Free-Surf, both with staggerTimeStep & synchronous
840        time-step, both with GM & KPP files and with recomputing these fields;
841        b) no needs to switch on staggerTimeStep anymore;
842        c) simplify rescaling of offline horiz. velocity with Non-Lin Free-Surf.
843      - update output of experiment tutorial_dic_adjoffline (only 3 digits left).
844    o pkg/offline:
845      - change (rarely used) offset-iteration parameter to an offset time (in s):
846        can easily recover previous offset-iter effect by setting offset-time
847        (offlineTimeOffset) to offset-iter x deltaToffline;
848      - do not turn-off Temp & Salinity surface relaxation when using KPP (used
849        in KPP as part of surface buoyancy forcing) in offline run.
850      - fix ptracers KPP non-local term in the case where KPP is re-computed.
851    o OpenAD
852      - Adding preliminary ggl90 test to OpenAD verification.
853        Config. with ggl90 currently diverges after 64 time steps
854        so will need more work to become more stable
855      - Adding preliminary kpp test to OpenAD verification.
856        required small tweakes in kpp_routines.F
857      - Merge and update from Krishna Narayanan's contrib area:
858        * Add one variable for preliminary OpenAD DIVA
859        * Add replacement time-stepping for OpenAD DIVA
860        * genmake2 flag -diva (but only for OpenAD; preliminary)
861        * required modifs for OAD_support
862        successful preliminary test for tutorial_global_oce_biogeo/
863    o pkg/seaice:
864      - initialise deltaC in seaice_lsr, cosmetic changes in seaice_lsr
865      - add cpp-flag SEAICE_DELTA_SMOOTHREG for option of regularising
866        delta with a smooth function in s/r seaice_calc_viscosity
867        (no effect on EVP)
868      - rename local suffix "sqr" into "sq" for more consistent variable names
869    o pkg/seaice:
870        add new parameter SEAICE_deltaMin that is used ***only***
871        for regularizing Delta (and nothing else, like the parameter
872        which is also used for all sorts of things SEAICE_EPS).
873        Defaults to SEAICE_EPS for backward compatibility only.
874    o pkg/seaice: replace erroneously storing e12Csqr on the wrong tape with
875        the wrong key by inialising it before use -> fixes a recomputation
876        problem but does not fix the gradient
877    o pkg/layers:
878      - move resetting of flux arrays to outside the iLa loop
879        (this caused layers_diapycnal to not work with more than one layer coord.)
880      - fix bug in calculation of layers_recip_delta in layers_init_fixed.F
881    o pkg/layers:
882      - remove from common block 3D layers fields (used to diagnose transport
883        in tracer coords) and declare them as local arrays in layers_calc.F
884    o pkg/seaice:
885      - Rename SEAICE_VECTORIZE_LSR_ZEBRA to SEAICE_LSR_ZEBRA and define it
886        in lab_sea forward experiment (changes results -> updated)
887      - update adjoint experiment lab_sea after cleaning up seaice_lsr_tridiagu/v
888    o pkg/seaice: modify seaice_lsr.F in order to improve the gradient
889       computations; for SEAICE_VECTORIZE_LSR
890      - move the loops over which the tridiagonal solvers (seaice_lsr_tridiagu/v)
891        sweep to the outside,
892      - remove store directives and add "CADJ loop sequential" directives
893        in analogy to model/src/solve_tridiagonal.F
894      - replace many "#ifdef SEAICE_VECTORIZE_LSR_ZEBRA" by variable loop
895        boundaries to yield more readable code. This has also the charming side
896        effect that your can use SEAICE_VECTORIZE_LSR_ZEBRA without
897        SEAICE_VECTORIZE_LSR (i.e. adjoint without recomputations in
898        seaice_lsr_tridiagu/v now requires either of these flags, vectorization
899        still requires SEAICE_VECTORIZE_LSR with SEAICE_VECTORIZE_LSR_ZEBRA as
900        an additional option)
901       The tridiagonal solvers are now completely analoguous to solve_tridiagonal.F
902       but the adjoint gradients (which are affected by this change) still explode.
903    o coupler (atm & ocn _compon_interf):
904      - avoid using Exch2 IO mapping if not suitable.
905    
906    checkpoint65m (2015/06/15)
907    o pkg/layers:
908      - clean-up old parameters setting (from Sep 2012):
909        + remove old parameters setting from common block (declared locally);
910        + stop if any old parameter is mixed with new parameters;
911        + check for valid or consistent parameter setting (e.g., layers_name)
912      - check that layers_bounds for Pot.Density are in the right range;
913        this is supposed to catch un-updated setting after recently shifting
914        potential density field "prho" by -1000 (now in "sigma" scale).
915    o pkg/layers:
916      - Added missing call to layers_fill for keeping track of tottend in
917        pkg/diagnostics/diagnostics_fill_state.F
918    o pkg/layers:
919      - added CPP flux LAYERS_FINEGRID_DIAPYCNAL to disable fine-grid binning
920        of diapycnal fluxes
921    o pkg/layers:
922      - reverted changes to interpolation to previous treatment; there
923        was never actually a problem
924    o pkg/layers:
925      - fix interpolation of layers tracers in the presence of partial cells
926      - add lots of new functionality to compute water mass transformation
927        (enabled by CPP flag LAYERS_THERMODYNAMICS)
928      - add new calls from main code (diags_oceanic_surf_flux.F,
929        thermodynamics.F, impldiff.F) and gad to save the necessary fields
930        for layers_thermodynamics calculations
931    o pkg/ptracers:
932      - add capability of stepping a passive tracer forward without advection
933        by setting PTRACERS_advScheme to 0.
934    o pkg/diagnostics:
935      - add few (threads) _BARRIER around any update of "diag_pkgStatus".
936    o pkg/layers:
937      - shift potential density field "prho" by -1000 for density layer averaging so
938        that it corresponds to usual "sigma" definition (i.e., rho(p=const)-1000);
939        Note that density bin boundaries (layers_bounds in data.layers) have
940        to be set accordingly (i.e., shifted, in sigma scale).
941    o pkg/layers:
942      - fix snap-shot output of layer thickness @ V.pt and output of pot.density
943      - fix calculation of layer non-weighted velocity and layer probability
944      - add diagnostics for pot.density used for layer averaging
945    o pkg/seaice:
946      - seaice_calc_viscosity.F: change computation of deltaC**2 to ensure
947        positiveness, modify a few comments and improve variable names,
948      - the changed computation of deltaC affects most seaice-related
949        experiments at the truncation level.
950        seaice_itd.thermo is affected by far the most, with
951        only 7 digits of agreement remaining; update experiments.
952    
953    checkpoint65l (2015/05/04)
954    o pkg/shelfice:
955      - in shelfice_thermodynamics.F, if SHELFICEBoundaryLayer=.true., then set
956        factor drKp1 to zero where it is negative (ie. do not use
957        SHELFICEBoundaryLayer if hFacC>1)
958      - the same for factor drLoc in shelfice_forcing.F
959    o tools/genmake2: move FEXTRAFLAGS from FFLAGS to FOPTIM to avoid a problem
960        with modules in ptracers, when using testreport option "-small_f"
961    o pkg/seaice/seaice_growth.F (in case of SEAICE_ITD)
962      - replace tmpscal1**1.36 by faster exp(1.36*log(tmpscal1))
963    o verification/testreport
964      - add new option -small_f
965        with this option testreport first makes the target small_f (*.f files)
966        before running make (all). This is useful for explicit inlining when
967        all sources need to be full available.
968    o pkg/exf/exf_interp.F:
969        remove previous changes related to reverse (decreasing) input grids latitude
970    
971    checkpoint65k (2015/04/01)
972    o pkg/ecco:
973        fix missing cosphi initialization; use eccoiter in place of optimcycle;
974        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
975        instead of active read/write
976    o pkg/ctrl:
977        if autodiff is not compiled then use READ_REC_XY_RL/READ_REC_XYZ_RL
978        instead of active read/write.
979    o pkg/autodiff: make autodiff_readparms.F and autodiff_whtapeio_sync.F
980        return if .NOT.useAUTODIFF
981    o pkg/seaice: add CPP brackets (cost function related).
982    o model/src:
983        add useAUTODIFF run time switch.
984    o pkg/exf/exf_interp.F:
985        add code to allow input grids with latitude starting in the north (i.e. when
986        j=1 corresponds to northern edge of field); modify global_with_exf to test
987        this feature.
988    o verification/testreport:
989      - replace "grep -A3" with POSIX conformal sed command, because there are
990        implementations of grep that cannot do contextual searches
991      - replace "cat -n" by "nl" (two occurrences), because not all implementations
992        of "cat" have the option "-n"
993    o model/src:
994        add new file gsw_teos10.F that contains 3 functions, more or less a copy
995        of the gsw_toolbox.f90 of the TEOS-10 fortran interface, that are used to
996        convert from conservative to potential temperature. For now they are not
997        called anywhere.
998    o pkg/ggl90: make "useIDEMIX" useful
999      - re-organize code in s/r ggl90_calc a little to move computations that
1000        are different for idemix into separate loops (changes verification
1001        experiment idemix at truncation level, 12 digits remain -> updated)
1002      - requires 2 new 2D fields KappaM, verticalShear
1003      - make hFacI and recip_hFacI local 3D variables that are passed to
1004        s/r ggl90_idemix
1005      - fix and improve some comments
1006    
1007    checkpoint65j (2015/02/25)
1008    o pkg/openad
1009      - synchronize seawater.F with version in model/src: replace routine
1010        body of sw_temp by calling sw_ptmp and fix/add a few comments.
1011    o pkg/mnc:
1012      - change default value of pickup_read/write_mnc params to FALSE
1013        (since few features are missing in reading MNC pickup files).
1014    o model/src:
1015      - change default (background) vertical diffusivity for salt to be the
1016        temperature (background) vertical diffusivity.
1017      - change background vertical diffusivity in vertical mixing pkgs ggl90,
1018        kl10, my82 and pp81 from temperature diffusivity to salinity diffusivity.
1019        This makes ptracers default diffusivity (that uses salt diffKr) more
1020        consistent with vertical mixing schemes.
1021    o verification/testreport:
1022      - fix typo in "-pcls" option ;
1023      - put temp files in /tmp (instead of in local dir)
1024      - add option "-ncad" to use genmake2 new option "-nocat4ad"
1025      - allow to use "-j" option (for multi-procs make) for AD, OAD and TLM.
1026    o pkg/ggl90 (idemix code):
1027      - apply few fixes ; add some missing "_d 0" ; update output of exp.
1028        global_ocean.90x40x15.idemix
1029    o OpenAD
1030      - enable active file I/O and begin removal of work-around code
1031        for OpenAD for handling control variables (memory vs. active files)
1032      - new CPP options file OPENAD_OPTIONS.h
1033      - revert to genarr2d gradient check for hs94.1x64x5
1034      - (genarr3d tested by tutorial_global_oce_biogeo, tutorial_tracer_adjsens)
1035      - gentim2d works for halfpipe_streamice but not yet hs94.1x64x5
1036    o tools/genmake2:
1037      - add option for an alternative Makefile (from Martin) where multiple
1038        source files are sent to TAF (instead of all in one file).
1039    o pkg/ggl90: add IDEMIX (Olbers and Eden, 2013)
1040      - code provided by Carsten Eden as an extension of ggl90
1041      - so far the code is turned on within ggl90 by setting a CPP-flag at
1042        compile time; a runtime flag implementation is not yet complete
1043      - tested in new verification experiment global_ocean.90x40x15.idemix
1044    o verification:
1045      - reduce length of the AD test run by half for experiments
1046        global_ocean.cs32x15 (std + thsice) and isomip
1047      - enable active file I/O for OpenAD, adjust verifications accordingly
1048      - halfpipe_streamice: change gradient check from genarr2d to gentim2d
1049    o verification/testreport:
1050      - fix two non-POSIX sed statements so that there are no error messages
1051        on Mac OS X
1052      - replace hostname -s with hostname | sed 's/\..*$//'
1053    o model/src/seawater.F:
1054      - simplify SW_TEMP to just calling SW_PTMP with P and PR exchanged
1055        (following the matlab code), which would have avoided the bug caught
1056        by Matt (see below) in the first place
1057    o pkg/shelfice:
1058      - implement alternative discretisation of quadratic drag (selectBotDragQuadr)
1059        and true distance in no-slip BC (bottomVisc_pCell) similar to bottom-drag.
1060      - fix sign of friction tendency (no-slip BC) and fix u,v drag for thin
1061        ice-shelf case (i.e., within surface level).
1062      - add config summary in shelfice_check.F
1063      - remove global variable recip_SHELFICElatentHeat and replace by a local
1064        variable recip_latentHeat
1065      - introduce diagnostics for friction velocity uStar (in case of
1066        SHELFICEuseGammaFrict)
1067      - change verification experiment isomip.htd:
1068        + start from pickup (as input_ad at nIter0=8640)
1069        + start from SHELFICEmassFile instead of SHELFICEloadAnomaly file
1070        + test SHELFICEuseGammaFrict = .TRUE.
1071        + test SHELFICEadvDiffHeatFlux = .TRUE.
1072    o model/src:
1073      - fix bug (Thanks to Matt) in function SW_TEMP (to convert Pot.Temp to
1074        in-situ Temp) and in routine SW_TEMP (in pkg/openad);
1075        update output of experiments global_with_exf.yearly and isomip (all 6).
1076    o pkg/shelfice:
1077      - change setting of kTopC to also be zero where there is no ice-shelf.
1078      - zero out surface forcing arrays (for now, for T & S + EmPmR) where
1079        ice-shelf is.
1080      - first attempt to get RealFreshWaterFlux effects: for now, only without
1081        SHELFICEboundaryLayer ; not consistent if using synchronous time-stepping.
1082    o pkg/seaice: add the option to prescribe a fixed thickness PDF
1083      for thermodynamic calculations
1084      - because of divisions of the type 7/7 not exactly equal to 1, this change
1085        affects results of some verification experiments by up to 4 digits:
1086        global_ocean.cs32x15.seaice, lab_sea, lab_sea.fd, lab_sea.salt_plume,
1087        seaice_obcs, seaice_obcs.seaiceSponge, seaice_obcs.tides
1088        adjoint: lab_sea, lab_sea.noseaicedyn
1089        -> updated
1090    
1091    checkpoint65i (2015/01/23)
1092    o model/src:
1093      - change units of frictionHeating field from W to W/m^2
1094      - fix bug in frictional heating from stratospheric drag in
1095        S/R ATM_PHYS_TENDENCY_APPLY_V
1096      - with synchronous time-stepping: move resetting to zero of frictionHeating
1097        field from load_fields_driver.F to thermodynamics.F ;
1098      - add diagnostics for frictional heating.
1099    o model/src & gmredi K3D:
1100      - add frictionHeating field to pickup-files (for synchronous time-stepping)
1101      - move ALLOW_EDDYPSI block out of DYNVARS.h and merge it into FFIELDS.h
1102      - rename uMean,vMean --> uEulerMean,vEulerMean (+ change diagnostics name
1103        and name in pickup file).
1104      - fix arguments of few DIAGNOSTICS_FILL calls in gmredi_k3d.F
1105    o model/src:
1106      - move (from ini_forcing.F) initialisation of all arrays in header file
1107        FFIELDS.h into new S/R ini_ffields.F ; this fix broken restart
1108        (since Nov 2012) with option selectAddFluid=1.
1109    o pkg/shelfice:
1110      - change units (+ document) of newly added field "shelfIceMassDynTendency"
1111      - upgrade from _RS to _RL shelficeMass & shelficeLoadAnomaly arrays.
1112    o pkg/obcs: re-organize obcs_calc_stevens.F to prepare for passive tracers
1113    o pkg/seaice: two new runtime parameters:
1114      - SEAICE_cStar replaces the hard wired "20" in the strength formulation,
1115        long overdue
1116      - SEAICE_tensilFac: preparation for Koenig-Beatty+Holland (2012)
1117        parameterization of tensil stress for fast ice (does not do anything yet)
1118    o pkg/seaice/seaice_check.F: left over from restricted addtive Schwarz method
1119        for LSR: move checking overlaps out of JFNK-if-block
1120    o pkg/atm_phys:
1121      - move copy of grid and dynamical fields out of atm_phys_driver.F into
1122        new S/R ATM_PHYS_DYN2PHYS.
1123      - fix level height for Linear Free-Surf case (to be consistent with
1124        fixed-in-time pressure levels).
1125    o pkg/mom_common (bottomdrag):
1126      - average bottomDragFld (ALLOW_BOTTOMDRAG_CONTROL) from grid-cell center
1127        to correct location (U & V point) in S/R MOM_U/V_BOTTOMDRAG;
1128        update output (adm & tlm) of experiment global_ocean.90x40x15.bottomdrag.
1129    o pkg/shelfice (u/v_drag):
1130      - add one argument (the other velocity component) to S/R SHELFICE_U/V_DRAG;
1131      - use SHELFICEDragLinear & SHELFICEDragQuadratic in shelfice_v_drag.F
1132        (now similar to shelfice_u_drag.F)
1133      - remove condition on bottomDragTerms when calling SHELFICE_U/V_DRAG
1134        from mom_vecinv.F (similar to mom_fluxform calls).
1135    o pkg/mom_common (bottomdrag):
1136      - add one argument (the other velocity component) to S/R MOM_U/V_BOTTOMDRAG;
1137      - add options for alternative discretisation of velocity norm in quadratic
1138        bottom drag: averaging of grid-cell-center KE to U.point and V.point
1139        (selectBotDragQuadr=0, original code) can produce noisy patterns; this
1140        improves when averaging only the other component (e.g. vVel for U bottom
1141        drag) using wet-point method (selectBotDragQuadr=2) or not (=1).
1142      - add options (bottomVisc_pCell) to account for partial-cell in bottom
1143        friction (no-slip BC) thus getting the true distance from the bottom;
1144        off by default since this also reduces model stability (explicit bottom
1145        friction). Changes produce different machine truncation with linear-drag
1146        + no-slip BC: update output of experiments exp4.stevens (10 digits) and
1147        front_relax (bvp & mxl, 10 & 11 digits).
1148    o model/src & mom pkgs:
1149      - add one more level to vertical viscosity local arrays (Nr+1, previously Nr)
1150        since no-slip bottom BC uses viscosity @ k+1 to update velocity @ level k
1151      - for now and until vertical mixing scheme are updated to fill up level Nr+1,
1152        just copy level Nr value to level Nr+1.
1153    o doc:
1154      - add notes form Abhisek Chakraborty on how to close Heat & Salt budgets.
1155    o pkg/shelfice:
1156      - shelfice_init_varia.F, shelfice_init_fixed.F, shelfice_readparms.F,
1157        SHELFICE.h: move array shelficemass to init_varia, initialise
1158        from array shelficemassinit, which is set in init_fixed and
1159        has option to be set from file; introduce array
1160        shelficeMassDynTend array, set thru file in init_fixed
1161      - NEW FILE: shelfice_step_icemass.F: update shelficemass from either
1162        shelfIceFreshWaterFlux and shelficeMassDynTend or H_streamice in
1163        pkg/streamice
1164      - shelfice_thermodynamics.F: call shelfice_step_icemass if
1165        SHELFICEMassStepping = .true.
1166      - shelfice_ad_diff.list: add new subroutine shelfice_step_icemass.f
1167    
1168    checkpoint65h (2014/12/17)
1169    o verification/global_ocean.90x40x15, global_ocean_ebm:
1170      - update to generic controls.
1171    o pkg/ctrl:
1172      - ctrl_map_ini_genarr.F: test for igen>0
1173      - ctrl_init_variables.F: add call to CTRL_MAP_INI_GENTIM2D.
1174      - move gentim2d part of ctrl_map_ini_genarr.F to
1175        new separate routine : ctrl_map_ini_gentim2d.F
1176      - ctrl_cost_driver.F,ctrl_init.F ctrl_map_ini_genarr.F:
1177        add time variable weights and cyclic controls (time mean,
1178        seasonal cycle, etc) capabilities to gentim2d
1179    o pkg/ecco:
1180      - move reading of error, conversion to weights from
1181        ecco_cost_init_fixed.F to ecco_toolbox.F (ecco_readwei)
1182    o global_oce_llc90, cs32:
1183      - activte sbo.
1184      - CTRL_SIZE.h : add maxCtrlProc.
1185      - activate the new genctrl capabilities.
1186      - update following reorganization of global_oce_input_fields.tar.gz  
1187    o pkg/ctrl/ctrl_ad_diff.list:
1188      - add missing ctrl_init_rec.f
1189    o tools/OAD_support/keepOriginal:
1190      - add ctrl_init_rec.F
1191    o model/src/the_main_loop.F, pkg/ctrl/ctrl_map_ini_genarr.F:
1192      - avoid recomputations of xx_gentim2d_dummy.
1193    o momentum diagnostics:
1194      - move filling of diagnostics Um_Diss & Vm_Diss from mom_fluxform.F and
1195        mom_vecinv.F to timestep.F (to include Smag-3D contribution).
1196    o pkg/seaice/seaice_lsr.F:
1197      - fix computation of BU/BV, make sure they are non-zero, only necessary
1198        for cubed sphere exchanges and SEAICE_OLx/y>0.
1199        This makes calling s/r fill_cs_corner_rl obsolete (removed).
1200    o verification/global_ocean.cs32x15/input.seaice
1201      - add test for strong implicit coupling and restricted addtive Schwarz
1202        methods for LSR
1203      - update results/output.seaice.txt
1204    o verification/tutorial_global_oce_biogeo:
1205      - AD & OAD set-up: switch off ALLOW_OLD_VIRTUALFLUX (like in fwd set-up)
1206        and set PTRACERS_EvPrRn(1,2) to zero (for DIC & ALK);
1207        update output_adm,_oadm,_tlm.txt
1208    o pkg/dic:
1209      - change default to "#undef ALLOW_OLD_VIRTUALFLUX" in DIC_OPTIONS.h
1210      - add a stop when ALLOW_OLD_VIRTUALFLUX is defined and PTRACERS_EvPrRn
1211        for tracer 1 & 2 is set (to avoid double counting of dilution effect).
1212    o verification/tutorial_global_oce_biogeo:
1213      - AD & OAD set-up: do not set PTRACERS_EvPrRn for tracer 1 & 2 since
1214        dilution is already added by pkg/dic ALLOW_OLD_VIRTUALFLUX ;
1215        update output_adm,_oadm,_tlm.txt
1216    o eesupp/src:
1217      - add fill_cs_corner_rl.F (_RL-copy of fill_cs_corner_rs.F)
1218        and call it in seaice_lsr when using nonzero SEAICE_OLx/y
1219    o pkg/seaice: introduce strongly implicit coupling, intended for stabilizing
1220      LSR (following Hutchings et al. 2004)
1221      - introduce zetaZ as a global variable (requires adjustments in
1222        seaice_evp.F and seaice_jfnk.F) and compute analoguously to etaZ
1223        in seaice_calc_viscosities.F
1224      - new flag SEAICEuseStrImpCpl (default off)
1225      - add new terms zetaZ*du/dy and zetaZ*dv/dx on both sides of the
1226        momentum equations
1227      - JFNK-solver (preconditioner) adjusted to allow using this method
1228        (where it does not have any positive effect)
1229    o pkg/seaice
1230      - add overlap for restrictive additive Schwartz method also to LSR, but
1231        turn it off by default (because it only seems to work for non-cubed
1232        sphere/llc topologies)
1233    o pkg/autodiff
1234      - add extra exchanges in addummy_in_steppging also for mnc output
1235    o pkg/seaice:
1236      - add extra exchanges before dumping adjoint fields in seaice_ad_dump.F
1237        to avoid stripes in the adjoint output (similar to addummy_in_stepping.F)
1238    o pkg/obcs:
1239      - add option to specify domain-connected piece Id along OB though files
1240        (for now, only used to diagnose PhiVel; default =1 -> global correction)
1241      - modify obcs_diag_balance.F to process each connected-part separately;
1242        exclude OB where Id = 0 but keep the full divergence there (-> constant
1243        Psi along this portion of OB and all inflow derived from grad(Phi))
1244      - add example of OB-conect files in verification/so_box_biogeo/input.
1245    o pkg/diagnostics:
1246      - improve treatment of Open-Boundaries in Velocity-Potential calculation:
1247      a) use non zero matrix element across OB and solve for Phi 1 grid point
1248         outside OB (i.e, where tracer OBCS are applied).
1249      b) global imbalance of inFlow/outFlow across OB: instead of modifying
1250         velocity across OB, spread it uniformly along the OB in the RHS.
1251    
1252    checkpoint65g (2014/11/19)
1253    o pkg/diagnostcis:
1254      - add preconditioner off-diagonal factor (diagCG_pcOffDFac) as run-time param
1255    o pkg/my82,pp81,kl10:
1256      - fix ALLOW_3D_DIFFKR implementation (previously had no effect): use 3-D
1257        field diffKr as background diffusivity to set minimum diffusivity value.
1258    o pkg/seaice:
1259      - add new parameter SEAICEuseEVPrev (for revisited EVP by
1260        Bouillon et al 2013)
1261      - add SEAICE_evpAlpha/Beta to namelist
1262      - modify seaice_evp code to able to use SEAICEuseEVPrev. These changes
1263        involve trivial re-ordering of divisions/multiplications that should not
1264        have any effects, but ... they do change the results of lab_sea.hb87 so
1265        that only 2 digits of agreement remain, in line with the general
1266        instability/fragility of the evp-code. For now, I do not care and just
1267        update the verification experiment
1268    o pkg/ctrl : add generic pre-processing (xx_genarr2d_preproc etc)
1269      - remove xx_genarr2d_numsmooth etc
1270      - use xx_genarr2d_preproc etc instead
1271      - carry out smooth_correl2D at initialization stage rather than during
1272        time stepping.
1273      - get smoothOpNb from xx_gentim2d_preproc
1274    o global_oce_cs32 :
1275      - add test of generic ecco capabilities.
1276    o pkg/exf/exf_getsurfacefluxes.F :
1277      - add to tmpUE/tmpVN rather than re-initializing them (conventional behavior).
1278    o pkg/ctrl,ecco :
1279      - omit un-necessary arguments to ctrl_cost_gen.F unless ECCO_CTRL_DEPRECATED
1280        is defined.
1281    o pkg/seaice: add diagnostics for Delta (deformation parameter)
1282    o model/src:
1283      - when ALLOW_3D_DIFFKR is defined, add a Warning if any of the vertical
1284        diffusivity (background) is specified but ignored.
1285    o verification:
1286      - in testreport, convert hostname to lower case for default output dir name
1287    o model, pkg : add useCTRL, useECCO parameters (on/off run time switch).
1288    o pkg/dic: add modifications from Hajoon:
1289      - add iron sedimentation flux function of the flux of PO4 out of bottom layer
1290      - light attenuation: add self-shading effect by climatological Chlorophyll
1291        (read from file).
1292    o pkg/seaice/seaice_preconditioner.F : fix cpp flags, so that code also
1293        compiles when SEAICE_ALLOW_DYNAMICS is undefined
1294    o global_oce_llc90,cs32 : ecco_v4 verification exps now use separate
1295        AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h, ECCO_OPTIONS.h rather than
1296        ECCO_CPPOPTIONS.h (i.e. replacing the deprecated, circumvoluted,
1297        approach where CPP_OPTIONS.h includes an omnipotent
1298        ECCO_CPPOPTIONS.h that superseeds pkgs '_OPTIONS.h').
1299    o pkg/ctrl/ctrl_map_ini_genarr.F : include GMREDI_OPTIONS.h where
1300        ALLOW_3D_KAPGM, ALLOW_3D_KAPREDI (to be added later) belong.
1301    o pkg/seaice/SEAICE_SIZE.h : replace ALLOW_AUTODIFF_TAMC with ALLOW_AUTODIFF
1302        to avoid needing AUTODIFF_OPTIONS.h anytime SEAICE_SIZE.h is included
1303        (it seems that THSICE_SIZE.h, PTRACERS_SIZE.h have the same issue...)
1304    o model/src, pkg/smooth, profiles, salt_plume, seaice, exf, ecco, ctrl :
1305      add ECCO_OPTIONS.h, AUTODIFF_OPTIONS.h, CTRL_OPTIONS.h when needed
1306      - ECCO_OPTIONS.h is needed when including ecco_cost.h, ecco.h
1307      - AUTODIFF_OPTIONS.h is needed when including tamc.h, tamc_keys.h
1308      - CTRL_OPTIONS.h is needed when including ctrl.h, optim.h, etc
1309    o pkg/ctrl,ecco,exf :
1310      - remove variables associated with NON-generic costs,
1311        unless ECCO_CTRL_DEPRECATED is defined.
1312      - remove NON-generic NON-obcs controls,
1313        unless ECCO_CTRL_DEPRECATED is defined.
1314    o pkg/ctrl : added ctrl_local_params.h
1315    o pkg/ecco : added ecco_local_params.h
1316    o verification : added ECCO_CTRL_DEPRECATED to most as and oad
1317        experiments, which will progressively be removed once the
1318        experiments are revised to use only generic controls/costs.
1319    
1320    checkpoint65f (2014/10/13)
1321    o pkg/ctrl, ecco, seaice : minor changes in headers
1322    o global_oce_llc90,cs32 : ecco_v4 verification exps now test generic
1323        cost function and control capabilities added since checkpoint65c.
1324    o pkg/ctrl: regroup all obcs ctrl variables in CTRL_OBCS.h.
1325    o pkg/ecco: increase modularity and improve logic
1326      - ecco_toolbox.F (new) : basic operations that are often used,
1327        including ecco_zero, ecco_cp, ecco_cprsrl, ecco_diffmsk,
1328        ecco_addcost, ecco_add, ecco_div, ecco_readbar.
1329      - cost_gencal.F (new) : determine filnames and records.
1330      - cost_genread.F, cost_generic.F : condense code using ecco_toolbox.
1331      - cost_generic.F : use spzeroloc rather than hard-coded -9999,
1332        and exploit the above functions leading to more compact code.
1333      - cost_genread.F : rm un-necessary arguments, re-arrange args order.
1334      - ecco_check.F, ecco_readparms.F : bring logic up to date (using_tpj,
1335        using_ers, using_gfo, using_mdt is now only defined within gencost)
1336    o pkg/ecco: extend generic cost capabilities
1337      - pkg/ecco : added 3D gencost (ALLOW_GENCOST3D), added gencost
1338        capabilities via gencost_preproc (+ _c,_i,_r related params),
1339        gencost_posproc (+ _c,_i,_r related params), gencost_nrecperiod,
1340        gencost_outputlevel arguments to cost_generic
1341      - pkg/ecco/cost_genread.F (new) : interface between cost_generic
1342        and active_read, making room for gencost_preproc to take effect.
1343        Added preproc code ('climmon') to replace GENERIC_BAR_MONTH.
1344      - pkg/ecco/cost_generic.F :
1345        compute and store misfit maks*(model-data) in localdif that is
1346        then used in cost and for output, output misfit if outlev.GT.0
1347      - pkg/ecco/cost_averagesfields.F : depend on gencost_barskip
1348        rather gencost_barfile for deciding whether to write barfile
1349      - pkg/ecco/ecco_cost_driver.F : extract call to cost_profiles from cost_hyd
1350      - pkg/ecco/ecco_cost_init_fixed.F : extract gencost weights from
1351        ecco_cost_weights, re-activate ecco_summary, determine gencost_barskip
1352      - pkg/ecco/ecco_summary.F : report gencost variables
1353      - pkg/ecco/cost_gencost_customize.F : treat case of scatterometer costs
1354    o pkg/sea/SEAICE_OPTIONS.h : add ALLOW_COST_ICE, ALLOW_SEAICE_COST_SMR_AREA
1355    o pkg/ecco: internal re-organization
1356      - resolve un-necessary dependancies within pkg/ecco and to pkg/ctrl
1357        (rm includes of optim.h and ctrl.h, replace optimcycle with eccoiter,
1358        mv relevant variables definition from ecco_cost.h to ecco.h,
1359        make sure gencost routines only include ecco.h)
1360      - throughout : add missing CCP switches, rm unused variables,
1361        and rm un-necessary CPP switches
1362      - throughout gencost routines : replace modelstartdate with
1363        gencost_startdate when needed
1364      - cost_bp_read.F : use arguments, instead of common blocs
1365        so that it can be used also by (new) cost_gencost_bpv4.F
1366      - ecco_init_varia.F : initialize RHOsumGlob_0, VOLsumGlob_0
1367      - ecco_phys.F : compute etanFull
1368      - ecco_readparms.F : rename using_topex as using_tpj, add
1369        bpv4-grace to gencost list, initialize added parameters
1370      - ecco_summary.F : include SIZE.h needed for augmented ecco.h
1371    
1372    checkpoint65e (2014/09/28)
1373    o pkg/obcs:
1374      - replaced the just-added CPP options with run-time variables
1375        (see pkg/obcs/OBCS_PARAMS.h for details)
1376    o pkg/obcs:
1377      - add additional CPP options for sponge boundary layers
1378        (see pkg/obcs/OBCS_OPTIONS.h for details)
1379    o pkg/atm_phys:
1380      - implement simple (obliquity only, assuming circular planet orbit)
1381        seasonal cycle for incoming insolation ; used when run-time parameter
1382        "select_incSW" is set to 1 ; by default (=0), uses old unchanged formula.
1383    o pkg/exf, pkg/ecco, pkg/ctrl:
1384      - add ctrlUseGen and .NOT.ctrlUseGen exclusive brackets
1385      - activate gentim2d for xx_atemp,xx_aqh,xx_swdown,xx_lwdown,xx_precip
1386      - implement gentim2d for xx_tauu, xx_tauv
1387    o pkg/ctrl, pkg/ecco :
1388      - fix and complement the generic controls implementation
1389    o pkg/exf/exf_getclim.F, exf_getffields.F, exf_getsurfacefluxes.F,
1390        pkg/shelfice/shelfice_thermodynamics.F,
1391        verification/hs94.1x64x5/code_ad/ctrl_map_gentim2d.F,
1392        verification/hs94.1x64x5/code_oad/ctrl_map_gentim2d.F :
1393      - add weight in CTRL_GET_GEN calls
1394    o pkg/ctrl :
1395      - ctrl_get_gen.F : add weight as input parameter, and apply
1396        it directly rather than using smooth_correl2Dw (to be retired).
1397      - ctrl_map_gentim2d.F : add wgentim2d in CTRL_GET_GEN call
1398    o pkg/ctrl :
1399      - introduce run time switch ctrlUseGen (in ctrl.h, ctrl_check.F,
1400        ctrl_init_variables.F, ctrl_readparms.F, ctrl_summary.F)
1401      - re-activate ctrl_summary (call in ctrl_init.F)
1402    o pkg/ctrl/ctrl_cost_gen.F :
1403      - fix CCP brackets, remove un-necessary myiter, mytime
1404    o pkg/ecco, pkg/ctrl :
1405      - remove cost_genctrl.F (now pkg/ctrl/ctrl_cost_driver.F)
1406      - remove cost_forcing_gen.F (now pkg/ctrl/ctrl_cost_gen2d.F)
1407      - add ctrl_cost_driver.F (replaces pkg/ecco/cost_genctrl.F)
1408      - add ctrl_cost_gen2d.F (replaces pkg/ecco/cost_forcing_gen.F)
1409    
1410    checkpoint65d (2014/09/15)
1411    o pkg/ctrl/CTRL_GENARR.h, ctrl_readparms.F :
1412      - add xx_genarr2d_bounds,xx_genarr3d_bounds,
1413        xx_genarr2d_numsmooth, xx_genarr3d_numsmooth
1414    o pkg/ctrl/ctrl_map_ini_genarr.F :
1415      - remove compilation failure
1416      - replace hard coded example
1417      - use ctrl_map_ini_gen2D, 3D
1418    o pkg/ctrl/ctrl_pack.F, ctrl_unpack.F :
1419      - on/off switch based upon xx_genarr2d_weight,3d
1420    o src/packages_init_variables.F :
1421      - regroup pkg/estimation calls
1422      - remove CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1423        (moved to ctrl_init_variables)
1424    o cost/cost_init_varia.F :
1425      - remove ecco_cost_init_varia
1426        (moved to ecco_init_varia)
1427    o ctrl/ctrl_init_variables.F :
1428      - add CTRL_MAP_INI, CTRL_MAP_INI_ECCO
1429      - add CTRL_MAP_INI_GENARR, SEAICE_CTRL_MAP_INI
1430    o ctrl/ctrl_map_ini.F :
1431      - remove ctrl_map_ini_genarr, seaice_ctrl_map_ini
1432        (moved to ctrl_init_variables)
1433    o ctrl/ctrl_map_ini_ecco.F :
1434      - remove ECCO_PHYS (mv to ecco_init_varia)
1435      - remove seaice_ctrl_map_ini (mv to ctrl_init_variables)
1436    o ecco/ecco_ad_diff.list :
1437      - add ecco_init_varia.f
1438    o ecco/ecco_init_varia.F
1439      - new routine
1440    o pkg/streamice:
1441      - move call to STREAMICE_INITIALIZE_PETSC from the_model_main.F
1442        to streamice_init_fixed.F ; fix setting of STREAMICEisOn.
1443      - from model/src, only call pkg/streamice routines if useStreamIce is TRUE.
1444    o pkg/generic_advdiff:
1445      - fix bug causing negatives in GAD_SMOLARKIEWICZ_HACK, introduced 8/8/2014.
1446    o pkg/exf:
1447      - exf_getffields.F : add xxg_atemp, xxg_aqh, xxg_swdown, xxg_lwdown,
1448         xxg_precip capability
1449      - exf_wind.F : no need for ALLOW_WSPEED_CONTROL cpp switch
1450    o pkg/ctrl:
1451      - ctrl_pack.F, ctrl_unpack.F : omit (un)packing of undefined xx_gentim2d
1452    o model/src/load_fields_driver.F :
1453      - move call to CTRL_MAP_GENTIM2D ahead of BULKF_FIELDS_LOAD, EXF_GETFORCING
1454        so xx_gentim2d can be applied to e.g. exf fields in a timely manner.
1455    o OpenAD verification experiments:
1456      - Include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h, and CTRL_OPTIONS.h
1457        in src files (to enable to skip the ECCO_CPPOPTIONS.h);
1458        for now, only in pkgs used in OpenAD verification experiments.
1459      - Change all except one (halfpipe_streamice) OpenAD experiments to use pkg
1460        specific option file (AUTODIFF_OPTIONS.h, COST_OPTIONS.h & CTRL_OPTIONS.h)
1461        instead of using ECCO_CPPOPTIONS.h (with all relevant options in it).
1462        This applies to both TAF (*/code_ad/) and OpenAD (*/code_oad/) tests.
1463    o OpenAD verification tests:
1464      - finish removing ALLOW_AUTODIFF_OPENAD (replaced by ALLOW_OPENAD);
1465      - finish replacing ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for
1466        tape/storage which are specific to TAF/TAMC) in pkgs used in OpenAD exp.
1467      - leave ALLOW_AUTODIFF_TAMC undef in OpenAD verification tests (*/code_oad/)
1468        and remove local copy of "tamc.h" (needed only if ALLOW_AUTODIFF_TAMC).
1469    o model/src & generic_advdiff:
1470      - change hard-coded loop-range in S/R APPLY_FORCING_T/S to set T & S
1471        forcing over 0:sNx+1, 0:sNy=1 (instead of just 1:sNx,1:sNy): Model
1472        dynamics requires valid tracer forcing only over tile interior but, for
1473        some diagnostics, may need to extend it over 1 point in tile halo region.
1474      - in gad_calc_rhs.F, update calls to gmredi_x/ytransport to get valid
1475        tendency over i,j_Min,Max range. This allows to simplfy i,j_Min,Max
1476        setting in temp/salt/ptracer_integrate.F
1477    o pkg/dic:
1478      - multiply tracer tendencies by maskInC (if ussing OBCS) before updating
1479        gchem tracers: this allows to skip the 2nd call to OBCS_APPLY_PTRACER
1480        in gchem_forcing_sep.F
1481    o pkg/autodiff & obcs:
1482      - add storage of current OB values for U & V (was already done for T & S).
1483    
1484    checkpoint65c (2014/08/30)
1485    o pkg/dic:
1486      - take out of dic_atmos.F the initialisation part (corresponding to istate=0)
1487        and move it to new S/R DIC_INI_ATMOS ; also simplify the dependencies for
1488        AD compilers (but still a Pb with multi-threading and Ajoint dependencies).
1489    o verification:
1490      - new experiment testing OBCS and DIC pkgs, using params & output from
1491        tutorial_global_oce_biogeo but limited to a sub-domain around Drake
1492        passage: take OBCS from the last year of a 2 yrs simulation and initial
1493        conditions from t=1.yr while keeping the same forcing.
1494    o model/src:
1495      - when allowFreezing=T, only reset below freezing initial Temp to Tfreezing
1496        (at any k) if checkIniTemp is not set to FALSE (default checkIniTemp=T).
1497    o pkg/diagnostics (Stats-Diags):
1498      - re-write S/R DIAGSTATS_CALC (more similar to TARGET_NEC_SX part) to:
1499        a) refine region where stats are computed, excluding where arrhFac=0 ;
1500        b) fix missing interior mask (use with OBCS) in 3-D fields statistics;
1501        c) extend regional stats over the region edges (for U or V pt location).
1502    o pkg/gchem:
1503      - add a (2nd) call to OBCS_APPLY_PTRACER in gchem_forcing_sep.F (needed since
1504        pkg/dic is currently changing/updating ptracers values beyond the OB).
1505    o verification (hs94):
1506      - convert Held & Suarez external_forcing.F (from hs94.cs, with Sigma-coords
1507        bits) to apply_forcing.F and undef USE_OLD_EXTERNAL_FORCING in experiments
1508        hs94.cs-32x32x5 and tutorial_held_suarez_cs ; also use the same version of
1509        apply_forcing.F in 2D hs94 (fwd, ad & oad) but keep LatLon hs94 unchanged.
1510    o pkg/ptracers:
1511      - implement Adams-Bashforth on pTracers (instead of on tracer tendency),
1512        switched on by setting PTRACERS_doAB_onGpTr=F (default set to doAB_onGtGs)
1513      - change exp4 secondary test (input.nlfs) to test AB on T & S & pTracer
1514        with AB-2 code (so that it get tested).
1515    o model/src:
1516      - allow to apply Adams-Bashforth on Temp & Salt (instead of on gT,gS)
1517        with AB-2 code (previously only available with AB-3 code).
1518        Also move the code (call to ADAMS_BASHFORTH S/R) form thermodynamics.F
1519        to temp/salt_integrate.F (since the 2nd part of gt/sNm1 update is done
1520        there, by calling CYCLE_AB_TRACER).
1521    o pkg/generic_advdiff:
1522      - change Tracer argument (drop bi,bj indices) in S/R GAD_CALC_RHS,
1523        GAD_C2_ADV_R, GAD_U3_ADV_R, GAD_C4_ADV_R, GAD_DIFF_R, GAD_BIHARM_R
1524        + also in GMREDI_X/Y/RTRANSPORT ; and update corresponding calls in
1525        S/R temp/salt/ptracers_integrate.F
1526    o model/src & pkg/ptracers:
1527      - remove common block variables gT,gS (in DYNVARS.h), except when
1528         USE_OLD_EXTERNAL_FORCING is defined; update TAF storage accordingly.
1529      - remove common block variable gPtr.
1530    o model/src & pkgs:
1531      - change gTracer (and/or tracer) argument (drop bi,bj indices) in S/R
1532         ADAMS_BASHFORTH(2&3), CYCLE_(AB_)TRACER, FREESURF_RESCALE_G,
1533         IMPLDIFF, SOLVE_TRIDIAGONAL & _PENTADIAGONAL, GAD_SOM_ADVECT,
1534         GAD_ADVECTION, GAD_CALC_RHS, GAD_IMPLICIT_R, TIMEAVE_CUMUL_DIF_1T
1535      + change accordingly all calling S/R.
1536      - use local temperature/salinity/ptracer tendency array (without bi,bj)
1537        in S/R temp/salt/ptracers_integrate.F
1538    o pkg/seaice:
1539      - move computation of stress contributions to rhsU/V in s/r seaice_lsr
1540        to separate s/r seaice_lsr_rhsu/v in order to be able to re-use code
1541      - make u/vIceC local variables if SEAICE_CGRID is defined only to be used
1542        in seaice_lsr
1543      - seaice_lsr.F: make local 4D arrays UXX, VYY, etc 2D
1544        in s/r seaice_lsr_calc_coeffs
1545    o pkg/mdsio:
1546      - in MDS_READ/WRITE_FIELD, stop if file-name (+prefix) is too long
1547        (e.g., > MAX_LEN_MBUF -90 ) or, in INI_MODEL_IO, if mdsioLocalDir is
1548        too long (e.g., > MAX_LEN_FNAM/2 )
1549    
1550    checkpoint65b (2014/08/12)
1551    o pkg/matrix:
1552      - pass, as argument, updated tracer field to S/R MATRIX_STORE_TENDENCY_EXP
1553    o model/src:
1554      - fix initialisation of geothermalFile; compile geothermal-flux code in
1555        natl_box verification experiment.
1556    o model/src & pkg/down_slope:
1557      - push the k loop inside S/R TIMESTEP_TRACER (now called outside the k loop).
1558      - in dwnslp_apply.F, update tracer tendency instead of the future tracer
1559        field and call S/R DWNSLP_APPLY before TIMESTEP_TRACER; this affects
1560        results at machine truncation level: update output of experiments
1561        global_ocean.90x40x15.dwnslp (FWD) and lab_sea.noseaicedyn (AD).
1562    o pkg/diagnostics (Stats-Diags):
1563      - do not cumulate the full volume when DIAGNOSTICS_FILL is
1564        called with bibjFlg < 0 (no increment of the counter for 2D/3D diag);
1565        This fix the mean statistics when DIAGNOSTICS_FILL is called multiple
1566        times (but Min,Max and StD are still wrong).
1567    o model/src:
1568      - add geothermal flux forcing: read in ini_forcing.F as time-constant
1569        field "geothermalFlux" applied in S/R APPLY_FORCING_T (apply_forcing.F)
1570    o model/src:
1571      - move CYCLE_TRACER calls from tracers_correction_step.F to temp/salt/ptracer
1572        _integrate.F so that, when leaving S/R THERMODYANMICS, theta,salt and pTrac
1573        arrays are already updated while adjustments (filters, conv.adjustment) are
1574        still applied later, in S/R TRACERS_CORRECTION_STEP.
1575    o model/src:
1576      - store in common bloc array "rhoInSitu" the virtual potential temperature
1577        anomaly that is used to compute geopotential: this make the atmos code
1578        more similar to ocean code which already uses rhoInSitu in calc_phi_hyd.F
1579    o pkg/seaice/seaice_lsr.F
1580      - rename integer variable ilcall to ipass (that's what it is called
1581        in the residual diagnostics
1582      - change time stepping for NPSEUDOTIMESTEP > 2 (does not change the
1583        default) for improved non-linear convergence of the first few steps
1584      - adjust a few comments and add new ones to explain some of the store
1585        directives
1586    o pkg/generic_advdiff (& ptracers):
1587      - re-work the code to check for valid advection scheme and for minimum
1588        size of overlap (now stored in local common bloc in gad_advscheme.F)
1589    o pkg/seaice: another attempt to make the adjoint work for sea ice dynamics
1590      - re-initialize more variables in seaice_lsr: u/vIceC, u/vIceNm1
1591      - add an auxilliary variable "bet" and fix store directives and keys in
1592        seaice_lsr_tridiagu/v, this seems to do the trick (i.e. more or
1593        less exact gradients in my tests); but there are still
1594        recomputation warning (although gradients are sort of OK), when
1595        SEAICE_LSR_VECTORIZE is not defined, so this flag and
1596        SEAICE_LSR_VECTORIZE_ZEBRA are recommended for efficiency.
1597      - update verification experiments lab_sea.
1598      - change some comments in S/R seaice_calc_viscosities
1599    o model/src:
1600      - if staggerTimeStep=T, always apply exchange to velocity field in
1601        do_stagger_fields_exchanges.F instead of in do_fields_blocking_exchanges.F
1602        (independent of using multi-dim advection or not); no effect on FWD run
1603        but affects AD results (at machine truncation level): update output of
1604        experiment 1D_ocean_ice_column (ad: 12 digits), hs94.1x64x5 (ad,oad: 13.d)
1605        and isomip (oad: 12.d).
1606    o pkg/generic_advdiff:
1607      - stop if doAB_onGtGs is set to FALSE but ignored
1608      - refine warning related to stability of tracer time-stepping
1609        regarding internal wave dynamics.
1610      - setting of AdamsBashforth_T,S when doAB_onGtGs=F: remove condition
1611        on staggerTimeStep & implicitIntGravWave (will now get a warning
1612        if potentially unstable).
1613    o pkg/kl10:
1614      - add new pkg "kl10" for mixing due to internal wave breaking, from
1615        http://www.sciencedirect.com/science/article/pii/S1463500310000144
1616        (contribution from Jody Klymak), tested in verification experiment
1617        verification/internal_wave/input.kl10/
1618    o isomip experiment:
1619      - test pkg/shelfice with Non-Lin Free-Surf in one of the FWD set-up
1620        (input.htd) and update the output.
1621    o cd_code experiments:
1622      - use default cd_code options (#undef CD_CODE_NO_AB_MOMENTUM &
1623        #undef CD_CODE_NO_AB_CORIOLIS) in experiments: cfc_example (fwd)
1624        global_ocean.90x40x15 (ad & oad) and OpenAD (ad & oad) and
1625        update the corresponding output.
1626    o pkg/seaice:
1627      - reduce the number of include files and store directives in
1628        S/R seaice_lsr_tridiagu/v
1629      - change the order of loops in one case in S/R seaice_lsr_tridiagv
1630        (only for SEAICE_VECTORIZE_LSR_ZEBRA defined), which allows me to
1631        get rid off one store directive (a TAF bug?)
1632      - add one more instance of ifdef SEAICE_VECTORIZE_LSR_ZEBRA in
1633        S/R seaice_lsr_tridiagv to change the loop range for consistency
1634      - remove ilcall, m from parameter list of S/R seaice_lsr_tridiagu/v
1635      - fix a bug that affects the JFNK solver: replace sNx/y by i/jMax in
1636        S/R seaice_lsr_tridiagu/v (requires update of
1637        offline_exf_seaice/input.dyn_jfnk)
1638    
1639    checkpoint65a (2014/07/27)
1640    o model/src:
1641      - Non-Lin Free-Surf in p/z coords: allows hFacW,S to be larger than
1642        surrounding hFacC=1 @ edge of a step with different kSurfC on either side
1643        (topo in p-coords, ice-shelf in z-coords); update output of experiments
1644        tutorial_global_oce_in_p and isomip (both AD and OpenAD output).
1645    o model/src:
1646      - collect momentum forcing tendency into local 2-D array (passed as argument
1647        to apply_forcing S/R); this simplifies mom. Forcing diagnostics and CD_CODE
1648        parts in timestep.F (without CD_CODE_NO_AB_MOMENTUM defined = the default);
1649        affects results at machine truncation level (e.g., if using OBCS_SPONGE).
1650      - collect T & S forcing tendency into local 2-D array (passed as argument to
1651        apply_forcing S/R); add 3-D diagnostics for temp & salt forcing tendency.
1652        affects results at machine truncation level (e.g., ocean: if using
1653        SHORTWAVE_HEATING ; atmos: if using FrictionHeating or (atm_Rq<>0) moist
1654        correction due to vertical advection).
1655      - update output of experiments: fizhi-cs-32x32x40 (13 digits),
1656        global_ocean.cs32x15 (fwd: icedyn, seaice, thsice, all 3 @ 11d; adm & tml:
1657        seaice_dynmix & thsice, fwd grd @ 3 & 8), hs94.1x64x5 (ad grd @ 13),
1658        obcs_ctrl (ad & fwd grd @ 12 & 7).
1659    o pkg/ptracers & diagnostics:
1660      - use ptracers (short) name (instead of long one) to make ptracers diagnostics
1661        title (to avoid some unexpected truncation); sort out ptracers diags units.
1662      - collect ptracer forcing tendency into local 2-D array (passed as argument
1663        to apply_forcing S/R); add 3-D diagnostics for ptracers forcing tendency.
1664    
1665    checkpoint65 (2014/07/18)
1666    o pkg/fizhi:
1667      - add parenthesis around fizhi tendencies in fizhi_tendency_apply.F: this
1668        affects results at machine truncation level. Update output of experiments
1669        fizhi-cs-32x32x40 (12 digits for cg2d) & fizhi-cs-aqualev20 (13 digits).
1670    o pkg/seaice: more clean up
1671      - rename TAF common block tapes to be more consistent and remove
1672        unnecessary duplicates
1673      - add store directives to remove more recomputations, but use smaller
1674        tapes (and adjust keys) when SEAICE_LSR_ADJOINT_ITER is undefined.
1675        The idea behind this flag is to reduce the memory footprint when the
1676        adjoint of the LSR is not required. As of now, defining the flag
1677        SEAICE_LSR_ADJOINT_ITER increases 4 common block tapes for 2D field by
1678        a factor of SOLV_MAX_FIXED (=500 by default in SEAICE_SIZE.h).
1679        For experiment offline_exf_seaice, this means on a linux box with gfortran
1680        nearly a factor of 10 (but keep in mind there is mostly seaice code in
1681        this experiment):
1682        > size mitgcmuv_ad
1683        text    data        bss     dec        hex
1684        5100659 1216  220458952  225560827  d71c8fb
1685        5339425 1200 1868783272 1874123897 6fb4dc79 (SEAICE_LSR_ADJOINT_ITER)
1686        but only a moderate increase of 36% for global_ocean.cs32x15:
1687        text    data        bss     dec        hex
1688        6695027 1648 1014578664 1021275339 3cdf6ccb
1689        6695203 1648 1382505320 1389202171 52cd8afb (SEAICE_LSR_ADJOINT_ITER)
1690      - note: there are still recomputations in global_ocean.cs32x15 and
1691        offline_exf_seaice and the gradient agreement changes (gets a
1692        little worse) for global_ocean.cs32x15 (-> update output_adm.seaice.txt)
1693      - in general, the AD gradients still are wrong
1694    o OpenAD
1695      - clean up code_oad/ directories somewhat by moving files
1696        dontCompile, dontTransform, keepOriginal to OAD_support/
1697    o model/src:
1698      - using MOM fluxform and Non-Lin Free-Surf with momDissip_In_AB=F
1699        (not currently tested): add dissipation terms before NLFS rescaling of
1700        tendencies (previously done after).
1701    o pkg/diagnostics:
1702      - write stats-diags in ascii file with more digits (same as in monitor).
1703    o pkg/down_slope:
1704      - drop the bi,bj dimension of argument recip_hFac in S/R DWNSLP_APPLY; with
1705        NLFS (not tested), use new recip_hFac value in order to conserve tracer.
1706    o model/src:
1707      - new file "apply_forcing.F" containing all the code previously in
1708        external_forcing.F, but with new argument list: pass, as new argument,
1709        the current level tendency array to update (instead of a direct update
1710        of the common bloc array). Change the corresponding calls.
1711      - add CPP option USE_OLD_EXTERNAL_FORCING (default is undef) to use
1712        EXTERNAL_FORCING_U,V,T,S subroutines (for backward compatibility).
1713    o pkg/seaice/seaice_lsr, a little bit of clean up
1714      - rearrange some code blocks, so that now all calculations for
1715        setting up the right-hand-sides done within one single block
1716        (I find that easier to read and understand)
1717      - rearrange freedrift-code to reduce the number of ifdefs
1718      - adjust some indentations and comments
1719    
1720    checkpoint64z (2014/07/10)
1721    o model/src and several pkgs:
1722      - change argument list of all S/R called from external_forcing.F and
1723        called from ptracers_forcing.F (renamed to ptracers_apply_forcing.F)
1724        to pass, as argument, the current level tendency array to update
1725        (instead of a direct update of the common bloc array).
1726      - change also (in the same way) argument list of PTRACERS_APPLY_FORCING;
1727      - rename taueddy_external_forcing.f to taueddy_tendency_apply.F
1728    o pkg/seaice/seaice_lsr.F
1729      - always initialize local arrays in seaice_lsr_tridiagu/v
1730      - add more local tapes to seaice_lsr_tridiagu/v
1731      - move storing u/vice(:,:,bi,bj) out of seaice_lsr_tridiagu/v, but
1732        keep it in bi/bj loop; this seems to be essential
1733      - gradients are still wrong but only by 4-7 orders of magnitude
1734        instead of 15 orders of magnitude, lab_sea improves a little
1735    o pkg/seaice
1736      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
1737        generates unnecessary code in seaice_lsr_ad
1738      - add more store directives in seaice_lsr to avoid unnecessary code
1739        in seaice_lsr_ad
1740      - exclude some residual computations in seaice_lsr when
1741        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
1742        in seaice_lsr_ad
1743      - add more storing, a new tape (model/src/the_main_loop.F) and
1744        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
1745        and klockey should be checked by a specialist)
1746      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
1747        and update lab_sea after previous changes in pkg/seaice below
1748    o pkg/autodiff:
1749      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
1750        viscFacInAd : run time parameters allowing for adjoint switches
1751        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
1752    o pkg/ecco:
1753      - introduce cost_gencost_boxmean.F that computes a box mean
1754        temperature (for use in adjoint sensitivity studies).
1755    o model/src/set_defaults.F : initialize viscFacAdj to 1.
1756    o pkg/mom_common/mom_calc_visc.F:
1757      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
1758    o pkg/seaice/seaice_summary.F:
1759      - statement for SEAICEadjMODE now in autodiff_readparms.F
1760    o pkg/seaice:
1761      - remove some store directives and add new ones in an effort to get
1762        finally rid off the recomputation warnings. This is successful
1763        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
1764        defined (i.e. no extensive recomputation warnings left), but there
1765        are still too many recomputations on the solver iteration level
1766      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
1767      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
1768        SEAICE_SIZE.h
1769      - add a store directive in S/R seaice_calc_viscosities
1770    o pkg/seaice (ITD code):
1771      - fix definition of Hlimit for multi-threaded case
1772      - use double precision arithmetic to compute Hlimit: this affects results;
1773        update output of experiment seaice_itd.
1774    o replace content of verification/seaice_itd
1775      - instead of a 1D column use the configuration of offline_exf_seaice
1776        to test the ice thickness distribution code with ridging
1777      - this is a first shot at this experiment
1778      - change of some defaults of ridging parameters SEAICEhStar (from
1779        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
1780        and lot of new comments.
1781    
1782    checkpoint64y (2014/06/20)
1783    o pkg/seaice/seaice_reg_ridge.F:
1784      - modify the regularization of very small volumes of ice; only check
1785        total volume HEFF, and do not apply correction to individual ice
1786        classes because that leads to funny patterns in the heat and fw-fluxes
1787        into the ocean. Adjust seaice_itd/results/output.txt
1788      - replace nITD by SEAICE_multDim in loop-ranges
1789    o pkg/exf:
1790      - add code to process the case field period = -12. with UV interpolation.
1791      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
1792        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
1793    o verification/global_with_exf:
1794      - switch all fields period to -12. (was previously untested) in input/data.exf
1795        (but keep secondary test ".yearly" unchanged); update the reference output.
1796    o pkg/cal:
1797      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
1798    o pkg/exf:
1799      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
1800        to replace logical switch "exf_verbose"
1801      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
1802    o pkg/sbo:
1803      - update from Katherine Quinn: evaluate mass directly from density and SSH
1804        (budget using Finite Volume method) instead of from bottom pressure.
1805      - allow testreport to collect few selected SBO output ; tested in exp.
1806        global_ocean.90x40x15 (after updating the results, to include SBO output).
1807      - fix some multi-threading issues (in output part).
1808    o model/src & most packages:
1809      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
1810      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
1811        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
1812        "data.{pkg}" exist ; and leave the S/R (return) just after.
1813      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
1814        + call LAND_READPARMS from packages_readparms.F
1815    o pkg/seaice:
1816      - remove code that resets useThSice in S/R seaice_readparms and
1817        replace it by a warning in S/R seaice_check
1818      - remove parameter MULTDIM, replace with nITD and runtime
1819        parameter SEAICE_multDim (still hard-wired to nITD if
1820        SEAICE_ITD is defined)
1821    
1822    checkpoint64x (2014/05/24)
1823    o verification/lab_sea:
1824      - update adjoint and TLM output following changes to pkg/salt_plume
1825      - un-do the update after putting back local recip_Cp in few places.
1826    o pkg/salt_plume: modifications by An Nguyen:
1827      - add capability to do brine rejection (salt-plume) as function of
1828        volume+tracers (instead of only salinity tracer).
1829      - conserve volume by exchanging volume from each kLev to above to
1830        accommodate in-coming brine volume
1831      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
1832      - switch KPP surf buoyancy due to brine forcing to 3-d
1833        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
1834      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
1835      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
1836        in East/West Arctic.
1837    o pkg/sbo:
1838      - incorporate modifications from Katherine Quinn to enable the use of sbo
1839        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
1840        output for future testreport verification (unfinished).
1841    o pkg/atm_phys:
1842      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
1843        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
1844        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
1845    o pkg/seaice
1846      seaice_calc_ice_strength.F: modify expression to avoid divisions
1847        (affects truncation)
1848      seaice_do_ridging.F: clean up the insectarium
1849      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
1850      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
1851      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
1852      - add some debugging information and error messages (warnings)
1853    o model/src: modifications relatd to atmosphere p*:
1854      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
1855      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
1856        of vertical profile tRef in geopotential background and anomaly.
1857      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
1858        and pkg/atm_phys.
1859      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
1860        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
1861    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
1862    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
1863        not used right now, but can be used in BGC packages to fix conservation.
1864    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
1865        other packages too.
1866    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
1867        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
1868    o model/src:
1869      - since we have several heat capacity (even in model/src), define "recip_Cp"
1870        as local variable (no longer in common block) to avoid any confusion.
1871      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
1872    o pkg/exf:
1873      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
1874        air density as function of air Temp, Humidity and atm pressure.
1875    
1876    checkpoint64w (2014/05/02)
1877    o verification:
1878      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
1879        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
1880        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
1881        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
1882        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
1883    o model/src: for atmosphere in p* coords:
1884      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
1885      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
1886        but not yet activated.
1887    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
1888      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
1889      - this changes the results (but not for any verification experiment, because
1890        none tests this), but avoids having an extra field in the restart files
1891    o pkg/seaice: remove global variable TICE (not needed)
1892      - replace by TICES or local variable where necessary (cost_seaice_test,
1893        seaice_diagnostics_state)
1894      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
1895      - use specific read/write routines for reading and writing individual leves
1896        of a multilevel field
1897    o pkg/ctrl & model/inc:
1898      - move additional anomaly fields of control vars (related to options:
1899         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
1900        from DYNVARS.h into new header file: CTRL_FIELDS.h
1901    o pkg/seaice: some small modifications to the ridging code
1902      - make fw2ObyRidge a global variable and add the freshwater flux to
1903        seaice_growth
1904      - pass actual thickness from seaice_prepare_ridging, so that it is
1905        computed only in one place and compute it in the same way as in
1906        seaice_growth
1907      - initialise more fields in seaice_do_ridging that where cause floating
1908        point exceptions over land
1909    o pkg/seaice: preparations for ridging code and first real ridging code
1910      - move most of "PART 1" of S/R seaice_growth into a new and separate
1911        S/R seaice_reg_ridge that will both regularize the state variable after
1912        advection call the actual ridging routine;
1913      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
1914        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
1915      - remove ridging code from seaice_advdiff
1916      - clean up remaining part 1 of seaice_growth in an attempt to make it
1917        more readable (this is probably subjective)
1918      - call seaice_itd_redist once in the initialisation phase to have the initial
1919        conditions in the correct category
1920      - finally: add new ridging routine for ITD code
1921    
1922    checkpoint64v (2014/04/11)
1923    o pkg/ecco:
1924      - add runtime parameters mdt[start,end]date[1,2]
1925      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
1926    o pkg/seaice:
1927      - make deltaC a global variable, so that it can be used in ridging code
1928      - first step towards ridging: introduce new routines that compute
1929        ice strength based on ridging parameters
1930      - add diagnostic for HSNOWITD
1931      - add opnWtrFrac as a global variable (required for ridging scheme)
1932    o pkg/salt_plume + pkg/seaice/seaice_growth.F
1933      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
1934        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
1935    o verification/hs94.1x64x5:
1936      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
1937      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
1938    o autodiff:
1939      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
1940        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
1941        For now, only in pkgs used in verification/hs94.1x64x5.
1942      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
1943        which are specific to TAF/TAMC).
1944      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
1945        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
1946        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
1947      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
1948        building mitgcmuv_ad (make adAll).
1949    o pkg/ecco:
1950      - cost_gencost_seaicev4.F:
1951         reformulate proxy cost as function of sst and local param SEAICE_freeze
1952         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
1953      - add stop statement if old names siv4-[sst,vol] are used
1954      - add snapshots + cost reports for atmospheric longwave
1955      - remove factor 0.1 in front of wtau[u,v]
1956      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
1957         ALLOW_TMI_SST_COST_CONTRIBUTION
1958    o pkg/atm_phys:
1959      - add some diagnostics for Short-wave and for convection S/R.
1960    o pkg/seaice/seaice_growth:
1961      - fix a bug in the lateral melt parameterization for SEAICE_ITD
1962        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
1963      - rearrange loop order for better vector code in the same code block
1964      - rewrite the floeDiameter formula to have fewer divisions
1965      -  (miraculously) none of this changes the results of seaice_itd
1966    o pkg/smooth:
1967      - move param smooth2Ddiffnbt to pkg/ecco
1968    o pkg/salt_plume:
1969      - salt_plume_frac.F:
1970         clean up local param names
1971         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
1972    o pkg/rw:
1973      - add RS version of S/R READ_MFLDS_LEV.
1974    o pkg/streamice:
1975      - fix the restart test by writing/reading pickup_streamice files.
1976    o pkg/seaice:
1977      - refine checks for jfnk-related parameters
1978      - comment out if statement with SEAICEuseIMEX parameter as long as there
1979        is no IMEX code to avoid confusion and surprises
1980    
1981    checkpoint64u (2014/03/07)
1982    o verification/MLAdjust:
1983      - rename secondary test suffix:
1984         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
1985         0.leithD -> AhFlxF  + switch to flux-form
1986         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
1987         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
1988    o pkg/mom_vecinv:
1989      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
1990        to be before mom_calc_visc.F)
1991      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
1992      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
1993        this is simpler for the adjoint and for diagnostics.
1994    o model/src + pkg/momentum:
1995      - add input files for  2-D additional Western and Southern cell-edge wall
1996         (e.g., to add "thin-wall" where it is =1).
1997      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
1998        using 2nd hFacZ that is computed from initial (fix domain) hFac
1999      - known limitations of thin wall implementation: not yet coded for sigma
2000        coords; not working with CD-scheme neither.
2001    o pkg/seaice:
2002      - rename recently introduced parameters from (wrong name) AB to
2003        BDF (backward difference time discretisation)
2004      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
2005    o tools/adjoint_options:
2006      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
2007    
2008    checkpoint64t (2014/02/01)
2009    o pkg/ecco
2010      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
2011        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
2012      - replace hard-coded record number and period which only work for monthly
2013        with read-in runtime param that works for other periods (month,day,year)
2014    o pkg/thsice
2015      - corrected store directive fixes thsice adjoint gradient checks
2016    o genmake2 & testreport:
2017      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
2018        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
2019        Update testreport accordingly. No need to set "export OPENAD=true"
2020        in adjoint_options/adjoint_oad anymore (will be removed later).
2021    o pkg/shelfice:
2022      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
2023        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
2024        so that surface forcing applies to k=kSurf if using pkg/shelfice.
2025    o pkg/ctrl, pkg/grdchk, pkg/ecco:
2026      - Changes to make GENARR more modular (i.e. invisible if not used)
2027    o model/src/temp_integrate.F and salt_integrate.F
2028      - re-include store directives that were removed on Dec 27th.
2029    o model/src/external_forcing_surf.F
2030      - add storage directives for EmPmR and PmEpR to avoid recomputation of
2031        seaice_model in the adjoint that is problematic when seaice_model is
2032        turned off in the adjoint. The resolved issue dated back to July when
2033        EXTERNAL_FORCING_SURF call was moved.
2034        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
2035    o pkg/exf/exf_check.F
2036      - fix a small bug again (originally found by Wentao Liu, now found again)
2037      - streamline error output
2038    o pkg/streamice and aim_v23:
2039      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
2040        Apple's /usr/bin/cpp knows what to do:
2041        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
2042        Target: x86_64-apple-darwin13.0.0
2043    
2044    checkpoint64s (2014/01/05)
2045    o tools/adjoint_options:
2046      - switch to fastopt.net TAF server (instead of default fastopt.de) for
2047        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
2048    o model/src:
2049      - remove some unnecessary TAF storage directives in forward_step.F and
2050        in dynamics.F (note: not always removed by TAF, e.g., double storage
2051        of kappaRU,kappaRV in former version of dynamics.F).
2052    o model/src & pkg/ptracers:
2053      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
2054        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
2055        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
2056      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
2057      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
2058      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
2059    o useSingleCpuInput separates single-CPU input from single-CPU output;
2060        for now only implemented for in exf_interp_read.F
2061    o verification/advect_xy:
2062      - fix missing EXCH call in local version of ini_salt.F and update output.
2063    o momentum diagnostics:
2064      - fix which deltaT is used in Total-Tendency diagnostics.
2065      - fix typo in diagnostics for momentum tendency from AB.
2066    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
2067        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
2068    
2069    checkpoint64r (2013/12/08)
2070    o verification/*/results:
2071      - Update reference output of experiments that were passing with just 13 digits
2072         (make it easier to detect future changes in results)
2073    o model/src & pkg/ptracers:
2074      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
2075        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
2076        to inside ptracers_integrate.F ; remove ptracers_advection.F
2077    o coupling interface pkgs:
2078        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
2079      - change the config check to test the agreement of Ocean Depth
2080        with ATM land/sea mask (instead of ATM orography);
2081      - send to coupler the number of coupler time-steps to do for this run:
2082        this allows to check for consistency and don't need anymore to be
2083        specified in parameter file "data";
2084      in coupler:
2085      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
2086      - improve report to log-file of config setting (pass log-file unit to few S/R)
2087    o pkg/compon_communic:
2088      - add coupling send/receive for non-tiled integer vector;
2089      - add S/R to check and stop if any proc has an error (similar to
2090        eesupp/src/stop_if_error.F but single thread and across Comm_World).
2091    o pkg/exch2:
2092      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
2093        through list of all tiles my proc owns.
2094    o model/src:
2095      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
2096        from rTrans) to simplify dependencies (no need to store rTrans anymore in
2097        calling S/R); this affects AD results at machine truncation level:
2098        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
2099        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
2100    o tools/build_options:
2101      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
2102    o coupling interface pkgs:
2103        [compon_communic, atm_compon_interf & ocn_compon_interf]
2104      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
2105        to each S/R that needs it; remove un-used variables.
2106      - change component tile registration (cpl_register.F in both compon_interf
2107        and mitcomponent_tile_register.F) to pass the full list of tiles
2108        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
2109      - with pkg/exch2: adopt the same convention used for I/O to define mapping
2110        towards coupler global array (unless W2_useE2ioLayOut=F):
2111         a) can now use different tiling between atm & ocn comp.
2112         b) no needs to modify the run-Off map when changing tiling (was needed
2113            even if using the same tiling between atm & ocn).
2114         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
2115            full land tiles); not yet tested.
2116      - check for valid mapping from comp. tile to coupler global array
2117      - improve report of tile registration results to log file.
2118    o pkg/exch2:
2119      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
2120        tile-registration (CPL_REGISTER);
2121      - activate (un-comment) definition and setting of "W2_tileIndex" list to
2122        store the local bi,bj indices of each tile;
2123      - also print bi,bj in local report to log file;
2124      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
2125        Jun 2009 modif of pkg/exch2).
2126    o testing on baudelaire:
2127      - run 2 tests at a time: no significant slow down (since enough cpu) and
2128        get the full set of test done earlier
2129      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
2130    o model/src/thermodynamics.F and routines called from it:
2131      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
2132        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
2133        velocity (outp) by adding bolus velocity.
2134      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
2135        mass transport from velocity + lateral grid cell area
2136      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
2137      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
2138     in thermodynamics.F
2139      - remove k from thermodynamics.F and move it to temp_integrate.F
2140        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
2141        loop).
2142      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
2143        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
2144        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
2145        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
2146      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
2147        global_ocean.90x40x15, tutorial_global_oce_biogeo and
2148        tutorial_tracer_adjsens (+ TLM output).
2149    o tools/OAD_support and (verification/*/) code_oad:
2150      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
2151        module conversion ; remove unneeded CPP_EEOPTIONS.h.
2152      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
2153        version (closer to model/inc/CPP_OPTIONS.h).
2154    o model/src:
2155      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
2156        retired list of parameters (routine FREEZE has been replace by surface
2157        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
2158    o pkg/gmredi:
2159      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
2160        velocity (same scheme but affects machine truncation) for GM_AdvForm.
2161      - update output of FWD experiments: front_relax.bvp,
2162        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
2163    
2164    checkpoint64q (2013/11/17)
2165    o verification:
2166      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
2167        tutorial_global_oce_biogeo and global_ocean.90x40x15.
2168      - generate new output (growth & melt) for seaice_itd experiment after
2169        updating the input pickup_seaice files (previously wrong).
2170    o pkg/cost:
2171      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
2172        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
2173        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
2174          cannot be applied to var in common block).
2175        o allows to get results independent of tile-per-proc setting (if using
2176          slower GLOBAL_SUM_SEND_RECV option).
2177      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
2178        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
2179        forward gradients: update output).
2180      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
2181        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
2182    o pkg/mom_common:
2183      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
2184        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
2185        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
2186        ensure that all field value that are used are set.
2187    o tutorial_deep_convection (smag3d):
2188      - add missing scaling in mom_calc_smag_3d.F;
2189      - set smag3D_coeff in input.smag3d such that results do not change.
2190    o pkg/dic:
2191      - change dic_cost.F to compute cost on each tile first and then apply
2192        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
2193        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
2194      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
2195    o eesupp/src & pkg/mdsio:
2196      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
2197        (from pkg/mdsio) since they are no longer used for tape IO.
2198      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
2199        (+ keep a copy in pkg/atm_ocn_coupler).
2200    o verification/isomip:
2201      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
2202    o tools/build_options:
2203      - optfile linux_amd64_ifort11, fast (no ieee) case:
2204        to get a working restart for all experiments, add "-fp-model source"
2205        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
2206    
2207    checkpoint64p (2013/10/20)
2208    o pkg/autodiff:
2209      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
2210        criteria, return to simple (default) tape IO format.
2211    o pkg/mdsio (+ eesupp/src):
2212      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
2213        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
2214      - fix globalFile and singleCpuIO options using simpler global mapping.
2215      - new pairs of scatter/gather vector S/R (one for each type, generated from
2216        template) corresponding to simpler global mapping.
2217      - adread_write.F: switch to new S/R (but leave old calls commented) and write
2218        to globalFile when parameter globalFiles is set to True.
2219      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
2220    o pkg/autodiff:
2221      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
2222        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
2223        missing, just add a STOP if array type do not match.
2224    o pkg/exf:
2225      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
2226         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
2227         and rename array obsSIce to exf_iceFraction.
2228    o tutorial_deep_convection:
2229      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
2230        for now all in this exp. code dir.
2231      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
2232        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
2233    o eesupp/src:
2234      - added SINGLE_DISK_IO option because reading of parameter files on
2235        very large number of processors did not work with existing set-up
2236    
2237    checkpoint64o (2013/09/25)
2238    o pkg/atm_phys & atm_compon_interf:
2239      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
2240    o tools/build_options:
2241      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
2242        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
2243        remove CPP setting (was identical to genmake2 default).
2244    o pkg/gmredi & model/src: Some updating and work done on the residual model.
2245      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
2246      - fixed up the calculation of the eddy stress and how it is added to the
2247        external forcing via taueddy_external_forcing.F
2248      - at the moment, it is very experimental and only works with the variable eddy
2249        diffusivity calculated in gmredi_k3d.F
2250    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
2251        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
2252    o testreport (& tools/do_tst_2+2):
2253      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
2254    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
2255      - remove CPP='cpp -traditional -P' (this is genmake2 default)
2256      - add switch (for big setups) to use 'medium' memory-model (but leave it
2257        commented out for now). Note: needed with FC 19 to compile big setups.
2258    o pkg/atm_compon_interf:
2259      - regroup per field origin (model & pkgs) the coupling storage routines
2260         (which accumalate in time each coupling field)
2261      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
2262        update accordingly + simplify aim_do_physics.F
2263    
2264    checkpoint64n (2013/08/26)
2265    o pkg/bbl:
2266      - update formulation to reduce dispersion of tracer properties in bbl
2267      - replaced horizontal and vertical transport parameters with velocities
2268      - changes results for verification/global_with_exf.yearly
2269    o verification/halfpipe_streamice:
2270      - change to matrix construction; update both Fwd & AD output.
2271    o verification/tutorial_tracer_adjsens:
2272      - OpenAD test: switch to vector-invariant momentum since fluxform with
2273        rStar causes problems with OpenAD; update output.
2274    o tools:
2275      - genmake2: define a common prefix for all temp-file names ; move them
2276        to local /tmp disk (but would be easy to move them back);
2277      - xmakedepend: apply the same switch for temp-files.
2278    o pkg/offline:
2279      - changes for use with rStar (NLFS): assume that we continue to provide
2280        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
2281        output files) and apply r* scaling at each time-step (function of the time
2282        varying Eta field); use normal pickup files (needed for restart with NLFS).
2283    o adjoint with OpenAD:
2284      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
2285        package openad.  This package has to be compiled for all runs with OpenAD
2286        instead of specifying code_oad_all as a modification directory.
2287      - link the fortran templates from tools/OAD_support to the build directory
2288        for preprocessing to avoid conflicts between different setups compiled
2289        simultaneously and simplify cleanup.
2290    o pkg/exf:
2291      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
2292        main model or other pkgs are exchanged in EXF_MAPFIELDS).
2293    o model/src:
2294      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
2295        (similar to do_fields_blocking_exchanges.F).
2296    o tools/genmake2:
2297      - remove TAF output src code just before calling staf (when not doing a fresh
2298        built, will stop if things go wrong with staf).
2299      - fix target "adobj" (left from TAF version-2 transition)
2300    o pkg/diagnostics:
2301      - add a parameter to track the status of pkg/diagnostics activation;
2302        this replace/extend the use of logical param "settingDiags" (to check
2303        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
2304        New S/R to print error message and stop when pkgStatus is not right.
2305      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
2306    
2307    checkpoint64m (2013/08/13)
2308    o model/inc:
2309      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
2310        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
2311    o pkg/kpp & aim_v23:
2312      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
2313    o pkg/seaice:
2314      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
2315        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
2316      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
2317    o eesupp/src:
2318      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
2319        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
2320    o switch to TAF version-2:
2321      - add flow directives to "freeze" naming convention for ad-routines that
2322        are used in I/O routines of adjoint state and associated common blocks
2323        that are used in adcommon.h (backward compatible with version-1)
2324      - update all ad-optfiles (in tools/adjoint_options + few local to some
2325        verification exp) to switch to latest TAF version (currently 2.5.5);
2326        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
2327        out except for diva).
2328      - the major change with TAF version-2 is that both the differentiated
2329        routines and the forward routines (new) are returned as part of the TAF
2330        output source code. Update genmake2 accordingly.
2331      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
2332        with version-2 when compared to TLM or FWD gradient); other experiments
2333        output show minor changes (machine truncation level); update the few AD &
2334        TLM output with 12 matching digits only (some prior to version-2 switch).
2335    
2336    checkpoint64l (2013/08/05)
2337    o model/src:
2338      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
2339      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
2340        when using TAF but only if using OpenAD.
2341    o pkg/mom_common+fluxform+vecinv:
2342      - always set horiz. viscosity arrays to background value before calling
2343        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
2344        only when using variable horiz. viscosity (useVariableVisc=T);
2345      - simplify mom_vecinv.F (only 1 block for momViscosity).
2346    o pkg/mom_common: variable horiz. viscosity in NH code
2347      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
2348        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
2349      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
2350        useBiharmonicVisc & useVariableVisc.
2351      - fix old bug (already in 1rst implementation of variable horizontal viscosity
2352        in calc_gw.F, version 1.27, 2006/06/20):
2353        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
2354        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
2355      - change background horiz viscosity in vertical momentum (gW) to always be
2356        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
2357        any type of variable viscosity, e.g., viscAh/4Grid)
2358      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
2359        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
2360        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
2361        default viscAh,viscA4 is zero).
2362    o model/src:
2363      - extend length of drC & recip_drC from Nr to Nr+1.
2364    o Divided Adjoint (DIVA) with MPI:
2365      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
2366      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
2367        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
2368    
2369    checkpoint64k (2013/07/23)
2370    o tools/OAD_support:
2371      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
2372        and remove it from genmake2.
2373    o tools/build_options:
2374      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
2375        MPI_HEADER_FILES list (let genmake2 find the missing headers)
2376    o verification/halfpipe_streamice:
2377      - change to driving stress formulation; update both Fwd & AD output.
2378    o tools/genmake2 and Divided Adjoint with MPI:
2379      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
2380      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
2381      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
2382        Makefile, which is set by genmake2, and check which mpi-headers are needed.
2383        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
2384      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
2385    o testreport:
2386      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
2387        perform additional runs (number of additional runs is "add_DIVA_runs" taken
2388        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
2389    o verification/lab_sea (AD test):
2390      - change to test Divided Adjoint Run in this set-up (both standard AD test
2391        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
2392    o pkg atm_ & ocn_compon_interf:
2393      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
2394        staggerTimeStep implementation) and disable (retired) corresponding
2395        parameter.
2396    o pkg/offline:
2397      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
2398      - add S/R OFFLINE_CHECK to print offline parameter summary
2399        and stop if loading a file that is not used;
2400      - enable to calculate GMRedi tensor, KPP mixing and convective index
2401        when the corresponding file(s) is/are not specified (but pkg is used).
2402      - comment out resetting of monitorFreq (to endTime) since it still useful
2403        for monitoring CFL numbers and checking offline fields.
2404    o OpenAD:
2405      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
2406        smaller standard output) and generate new (smaller) output (on baudelaire
2407        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
2408    o model/src:
2409      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
2410        (where external_forcing_adjust was called) and change list of arguments;
2411      - merge external_forcing_adjust.F into external_forcing_surf.F
2412      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
2413        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
2414        previously in file "balance_relax.F", now removed); remove corresponding
2415        arrays in FFIELDS.h.
2416      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
2417        a hack for getting back surfaceForcingS (loaded from file) when using
2418        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
2419      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
2420        (was getting only 11 digits for AD-grad, due to different truncation
2421         error in AD code).
2422    
2423    checkpoint64j (2013/07/04)
2424    o pkg/offline:
2425      - to enable the use of other features with pkg offline (e.g., obcs),
2426        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
2427      - comment out "allowFreezing" (now active) in 2 offline testing exp.
2428  o pkg/exf ALLOW_RUNOFTEMP  o pkg/exf ALLOW_RUNOFTEMP
2429    - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL    - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
2430    - added RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice    - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
2431    - changes verification/global_ocean.cs32x15/results/output.seaice.txt    - changes verification/global_ocean.cs32x15/results/output.seaice.txt
2432  o pkg/atm_phys:  o pkg/atm_phys:
2433    - allows to add some damping on uVel,vVel (strength only function of k).    - allows to add some damping on uVel,vVel (strength only function of k).

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