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revision 1.1743 by mlosch, Mon Sep 24 15:07:38 2012 UTC revision 1.2017 by mlosch, Mon Jun 30 15:47:20 2014 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice
8      - (pkg/autodiff) remove storing/restoring of seaiceMaskU/V that
9        generates unnecessary code in seaice_lsr_ad
10      - add more store directives in seaice_lsr to avoid unnecessary code
11        in seaice_lsr_ad
12      - exclude some residual computations in seaice_lsr when
13        ALLOW_AUTODIFF_TAMC is defined in order to avoid unnecessary code
14        in seaice_lsr_ad
15      - add more storing, a new tape (model/src/the_main_loop.F) and
16        another key for SEAICE_LSR_VECTORIZE_ZEBRA (the local keys ilockey
17        and klockey should be checked by a specialist)
18      - modify ( define SEAICE_VECTORIZE_LSR and SEAICE_LSR_ADJOINT_ITER )
19        and update lab_sea after previous changes in pkg/seaice below
20    o pkg/autodiff :
21      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
22        viscFacInAd : run time parameters allowing for adjoint switches
23        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
24    o pkg/ecco :
25      - introduce cost_gencost_boxmean.F that computes a box mean
26        temperature (for use in adjoint sensitivity studies).
27    o model/src/set_defaults.F : initialize viscFacAdj to 1.
28    o pkg/mom_common/mom_calc_visc.F :
29      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
30    o pkg/seaice/seaice_summary.F :
31      - statement for SEAICEadjMODE now in autodiff_readparms.F
32    o pkg/seaice
33      - remove some store directives and add new ones in an effort to get
34        finally rid off the recomputation warnings. This is successful
35        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
36        defined (i.e. no extensive recomputation warnings left), but there
37        are still too many recomputations on the solver iteration level
38      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
39      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
40        SEAICE_SIZE.h
41      - add a store directive in S/R seaice_calc_viscosities
42    o pkg/seaice (ITD code):
43      - fix definition of Hlimit for multi-threaded case
44      - use double precision arithmetic to compute Hlimit: this affects results;
45        update output of experiment seaice_itd.
46    o replace content of verification/seaice_itd
47      - instead of a 1D column use the configuration of offline_exf_seaice
48        to test the ice thickness distribution code with ridging
49      - this is a first shot at this experiment
50      - change of some defaults of ridging parameters SEAICEhStar (from
51        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
52        and lot of new comments.
53    
54    checkpoint64y (2014/06/20)
55    o pkg/seaice/seaice_reg_ridge.F:
56      - modify the regularization of very small volumes of ice; only check
57        total volume HEFF, and do not apply correction to individual ice
58        classes because that leads to funny patterns in the heat and fw-fluxes
59        into the ocean. Adjust seaice_itd/results/output.txt
60      - replace nITD by SEAICE_multDim in loop-ranges
61    o pkg/exf:
62      - add code to process the case field period = -12. with UV interpolation.
63      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
64        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
65    o verification/global_with_exf:
66      - switch all fields period to -12. (was previously untested) in input/data.exf
67        (but keep secondary test ".yearly" unchanged); update the reference output.
68    o pkg/cal:
69      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
70    o pkg/exf:
71      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
72        to replace logical switch "exf_verbose"
73      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
74    o pkg/sbo:
75      - update from Katherine Quinn: evaluate mass directly from density and SSH
76        (budget using Finite Volume method) instead of from bottom pressure.
77      - allow testreport to collect few selected SBO output ; tested in exp.
78        global_ocean.90x40x15 (after updating the results, to include SBO output).
79      - fix some multi-threading issues (in output part).
80    o model/src & most packages:
81      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
82      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
83        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
84        "data.{pkg}" exist ; and leave the S/R (return) just after.
85      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
86        + call LAND_READPARMS from packages_readparms.F
87    o pkg/seaice:
88      - remove code that resets useThSice in S/R seaice_readparms and
89        replace it by a warning in S/R seaice_check
90      - remove parameter MULTDIM, replace with nITD and runtime
91        parameter SEAICE_multDim (still hard-wired to nITD if
92        SEAICE_ITD is defined)
93    
94    checkpoint64x (2014/05/24)
95    o verification/lab_sea:
96      - update adjoint and TLM output following changes to pkg/salt_plume
97      - un-do the update after putting back local recip_Cp in few places.
98    o pkg/salt_plume: modifications by An Nguyen:
99      - add capability to do brine rejection (salt-plume) as function of
100        volume+tracers (instead of only salinity tracer).
101      - conserve volume by exchanging volume from each kLev to above to
102        accommodate in-coming brine volume
103      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
104      - switch KPP surf buoyancy due to brine forcing to 3-d
105        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
106      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
107      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
108        in East/West Arctic.
109    o pkg/sbo:
110      - incorporate modifications from Katherine Quinn to enable the use of sbo
111        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
112        output for future testreport verification (unfinished).
113    o pkg/atm_phys:
114      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
115        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
116        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
117    o pkg/seaice
118      seaice_calc_ice_strength.F: modify expression to avoid divisions
119        (affects truncation)
120      seaice_do_ridging.F: clean up the insectarium
121      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
122      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
123      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
124      - add some debugging information and error messages (warnings)
125    o model/src: modifications relatd to atmosphere p*:
126      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
127      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
128        of vertical profile tRef in geopotential background and anomaly.
129      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
130        and pkg/atm_phys.
131      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
132        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
133    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
134    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
135        not used right now, but can be used in BGC packages to fix conservation.
136    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
137        other packages too.
138    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
139        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
140    o model/src:
141      - since we have several heat capacity (even in model/src), define "recip_Cp"
142        as local variable (no longer in common block) to avoid any confusion.
143      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
144    o pkg/exf:
145      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
146        air density as function of air Temp, Humidity and atm pressure.
147    
148    checkpoint64w (2014/05/02)
149    o verification:
150      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
151        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
152        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
153        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
154        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
155    o model/src: for atmosphere in p* coords:
156      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
157      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
158        but not yet activated.
159    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
160      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
161      - this changes the results (but not for any verification experiment, because
162        none tests this), but avoids having an extra field in the restart files
163    o pkg/seaice: remove global variable TICE (not needed)
164      - replace by TICES or local variable where necessary (cost_seaice_test,
165        seaice_diagnostics_state)
166      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
167      - use specific read/write routines for reading and writing individual leves
168        of a multilevel field
169    o pkg/ctrl & model/inc:
170      - move additional anomaly fields of control vars (related to options:
171         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
172        from DYNVARS.h into new header file: CTRL_FIELDS.h
173    o pkg/seaice: some small modifications to the ridging code
174      - make fw2ObyRidge a global variable and add the freshwater flux to
175        seaice_growth
176      - pass actual thickness from seaice_prepare_ridging, so that it is
177        computed only in one place and compute it in the same way as in
178        seaice_growth
179      - initialise more fields in seaice_do_ridging that where cause floating
180        point exceptions over land
181    o pkg/seaice: preparations for ridging code and first real ridging code
182      - move most of "PART 1" of S/R seaice_growth into a new and separate
183        S/R seaice_reg_ridge that will both regularize the state variable after
184        advection call the actual ridging routine;
185      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
186        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
187      - remove ridging code from seaice_advdiff
188      - clean up remaining part 1 of seaice_growth in an attempt to make it
189        more readable (this is probably subjective)
190      - call seaice_itd_redist once in the initialisation phase to have the initial
191        conditions in the correct category
192      - finally: add new ridging routine for ITD code
193    
194    checkpoint64v (2014/04/11)
195    o pkg/ecco:
196      - add runtime parameters mdt[start,end]date[1,2]
197      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
198    o pkg/seaice:
199      - make deltaC a global variable, so that it can be used in ridging code
200      - first step towards ridging: introduce new routines that compute
201        ice strength based on ridging parameters
202      - add diagnostic for HSNOWITD
203      - add opnWtrFrac as a global variable (required for ridging scheme)
204    o pkg/salt_plume + pkg/seaice/seaice_growth.F
205      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
206        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
207    o verification/hs94.1x64x5:
208      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
209      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
210    o autodiff:
211      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
212        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
213        For now, only in pkgs used in verification/hs94.1x64x5.
214      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
215        which are specific to TAF/TAMC).
216      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
217        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
218        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
219      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
220        building mitgcmuv_ad (make adAll).
221    o pkg/ecco:
222      - cost_gencost_seaicev4.F:
223         reformulate proxy cost as function of sst and local param SEAICE_freeze
224         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
225      - add stop statement if old names siv4-[sst,vol] are used
226      - add snapshots + cost reports for atmospheric longwave
227      - remove factor 0.1 in front of wtau[u,v]
228      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
229         ALLOW_TMI_SST_COST_CONTRIBUTION
230    o pkg/atm_phys:
231      - add some diagnostics for Short-wave and for convection S/R.
232    o pkg/seaice/seaice_growth:
233      - fix a bug in the lateral melt parameterization for SEAICE_ITD
234        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
235      - rearrange loop order for better vector code in the same code block
236      - rewrite the floeDiameter formula to have fewer divisions
237      -  (miraculously) none of this changes the results of seaice_itd
238    o pkg/smooth:
239      - move param smooth2Ddiffnbt to pkg/ecco
240    o pkg/salt_plume:
241      - salt_plume_frac.F:
242         clean up local param names
243         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
244    o pkg/rw:
245      - add RS version of S/R READ_MFLDS_LEV.
246    o pkg/streamice:
247      - fix the restart test by writing/reading pickup_streamice files.
248    o pkg/seaice:
249      - refine checks for jfnk-related parameters
250      - comment out if statement with SEAICEuseIMEX parameter as long as there
251        is no IMEX code to avoid confusion and surprises
252    
253    checkpoint64u (2014/03/07)
254    o verification/MLAdjust:
255      - rename secondary test suffix:
256         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
257         0.leithD -> AhFlxF  + switch to flux-form
258         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
259         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
260    o pkg/mom_vecinv:
261      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
262        to be before mom_calc_visc.F)
263      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
264      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
265        this is simpler for the adjoint and for diagnostics.
266    o model/src + pkg/momentum:
267      - add input files for  2-D additional Western and Southern cell-edge wall
268         (e.g., to add "thin-wall" where it is =1).
269      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
270        using 2nd hFacZ that is computed from initial (fix domain) hFac
271      - known limitations of thin wall implementation: not yet coded for sigma
272        coords; not working with CD-scheme neither.
273    o pkg/seaice:
274      - rename recently introduced parameters from (wrong name) AB to
275        BDF (backward difference time discretisation)
276      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
277    o tools/adjoint_options:
278      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
279    
280    checkpoint64t (2014/02/01)
281    o pkg/ecco
282      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
283        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
284      - replace hard-coded record number and period which only work for monthly
285        with read-in runtime param that works for other periods (month,day,year)
286    o pkg/thsice
287      - corrected store directive fixes thsice adjoint gradient checks
288    o genmake2 & testreport:
289      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
290        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
291        Update testreport accordingly. No need to set "export OPENAD=true"
292        in adjoint_options/adjoint_oad anymore (will be removed later).
293    o pkg/shelfice:
294      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
295        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
296        so that surface forcing applies to k=kSurf if using pkg/shelfice.
297    o pkg/ctrl, pkg/grdchk, pkg/ecco:
298      - Changes to make GENARR more modular (i.e. invisible if not used)
299    o model/src/temp_integrate.F and salt_integrate.F
300      - re-include store directives that were removed on Dec 27th.
301    o model/src/external_forcing_surf.F
302      - add storage directives for EmPmR and PmEpR to avoid recomputation of
303        seaice_model in the adjoint that is problematic when seaice_model is
304        turned off in the adjoint. The resolved issue dated back to July when
305        EXTERNAL_FORCING_SURF call was moved.
306        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
307    o pkg/exf/exf_check.F
308      - fix a small bug again (originally found by Wentao Liu, now found again)
309      - streamline error output
310    o pkg/streamice and aim_v23:
311      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
312        Apple's /usr/bin/cpp knows what to do:
313        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
314        Target: x86_64-apple-darwin13.0.0
315    
316    checkpoint64s (2014/01/05)
317    o tools/adjoint_options:
318      - switch to fastopt.net TAF server (instead of default fastopt.de) for
319        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
320    o model/src:
321      - remove some unnecessary TAF storage directives in forward_step.F and
322        in dynamics.F (note: not always removed by TAF, e.g., double storage
323        of kappaRU,kappaRV in former version of dynamics.F).
324    o model/src & pkg/ptracers:
325      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
326        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
327        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
328      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
329      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
330      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
331    o useSingleCpuInput separates single-CPU input from single-CPU output;
332        for now only implemented for in exf_interp_read.F
333    o verification/advect_xy:
334      - fix missing EXCH call in local version of ini_salt.F and update output.
335    o momentum diagnostics:
336      - fix which deltaT is used in Total-Tendency diagnostics.
337      - fix typo in diagnostics for momentum tendency from AB.
338    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
339        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
340    
341    checkpoint64r (2013/12/08)
342    o verification/*/results:
343      - Update reference output of experiments that were passing with just 13 digits
344         (make it easier to detect future changes in results)
345    o model/src & pkg/ptracers:
346      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
347        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
348        to inside ptracers_integrate.F ; remove ptracers_advection.F
349    o coupling interface pkgs:
350        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
351      - change the config check to test the agreement of Ocean Depth
352        with ATM land/sea mask (instead of ATM orography);
353      - send to coupler the number of coupler time-steps to do for this run:
354        this allows to check for consistency and don't need anymore to be
355        specified in parameter file "data";
356      in coupler:
357      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
358      - improve report to log-file of config setting (pass log-file unit to few S/R)
359    o pkg/compon_communic:
360      - add coupling send/receive for non-tiled integer vector;
361      - add S/R to check and stop if any proc has an error (similar to
362        eesupp/src/stop_if_error.F but single thread and across Comm_World).
363    o pkg/exch2:
364      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
365        through list of all tiles my proc owns.
366    o model/src:
367      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
368        from rTrans) to simplify dependencies (no need to store rTrans anymore in
369        calling S/R); this affects AD results at machine truncation level:
370        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
371        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
372    o tools/build_options:
373      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
374    o coupling interface pkgs:
375        [compon_communic, atm_compon_interf & ocn_compon_interf]
376      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
377        to each S/R that needs it; remove un-used variables.
378      - change component tile registration (cpl_register.F in both compon_interf
379        and mitcomponent_tile_register.F) to pass the full list of tiles
380        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
381      - with pkg/exch2: adopt the same convention used for I/O to define mapping
382        towards coupler global array (unless W2_useE2ioLayOut=F):
383         a) can now use different tiling between atm & ocn comp.
384         b) no needs to modify the run-Off map when changing tiling (was needed
385            even if using the same tiling between atm & ocn).
386         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
387            full land tiles); not yet tested.
388      - check for valid mapping from comp. tile to coupler global array
389      - improve report of tile registration results to log file.
390    o pkg/exch2:
391      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
392        tile-registration (CPL_REGISTER);
393      - activate (un-comment) definition and setting of "W2_tileIndex" list to
394        store the local bi,bj indices of each tile;
395      - also print bi,bj in local report to log file;
396      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
397        Jun 2009 modif of pkg/exch2).
398    o testing on baudelaire:
399      - run 2 tests at a time: no significant slow down (since enough cpu) and
400        get the full set of test done earlier
401      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
402    o model/src/thermodynamics.F and routines called from it:
403      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
404        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
405        velocity (outp) by adding bolus velocity.
406      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
407        mass transport from velocity + lateral grid cell area
408      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
409      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
410     in thermodynamics.F
411      - remove k from thermodynamics.F and move it to temp_integrate.F
412        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
413        loop).
414      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
415        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
416        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
417        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
418      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
419        global_ocean.90x40x15, tutorial_global_oce_biogeo and
420        tutorial_tracer_adjsens (+ TLM output).
421    o tools/OAD_support and (verification/*/) code_oad:
422      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
423        module conversion ; remove unneeded CPP_EEOPTIONS.h.
424      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
425        version (closer to model/inc/CPP_OPTIONS.h).
426    o model/src:
427      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
428        retired list of parameters (routine FREEZE has been replace by surface
429        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
430    o pkg/gmredi:
431      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
432        velocity (same scheme but affects machine truncation) for GM_AdvForm.
433      - update output of FWD experiments: front_relax.bvp,
434        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
435    
436    checkpoint64q (2013/11/17)
437    o verification:
438      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
439        tutorial_global_oce_biogeo and global_ocean.90x40x15.
440      - generate new output (growth & melt) for seaice_itd experiment after
441        updating the input pickup_seaice files (previously wrong).
442    o pkg/cost:
443      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
444        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
445        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
446          cannot be applied to var in common block).
447        o allows to get results independent of tile-per-proc setting (if using
448          slower GLOBAL_SUM_SEND_RECV option).
449      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
450        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
451        forward gradients: update output).
452      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
453        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
454    o pkg/mom_common:
455      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
456        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
457        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
458        ensure that all field value that are used are set.
459    o tutorial_deep_convection (smag3d):
460      - add missing scaling in mom_calc_smag_3d.F;
461      - set smag3D_coeff in input.smag3d such that results do not change.
462    o pkg/dic:
463      - change dic_cost.F to compute cost on each tile first and then apply
464        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
465        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
466      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
467    o eesupp/src & pkg/mdsio:
468      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
469        (from pkg/mdsio) since they are no longer used for tape IO.
470      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
471        (+ keep a copy in pkg/atm_ocn_coupler).
472    o verification/isomip:
473      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
474    o tools/build_options:
475      - optfile linux_amd64_ifort11, fast (no ieee) case:
476        to get a working restart for all experiments, add "-fp-model source"
477        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
478    
479    checkpoint64p (2013/10/20)
480    o pkg/autodiff:
481      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
482        criteria, return to simple (default) tape IO format.
483    o pkg/mdsio (+ eesupp/src):
484      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
485        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
486      - fix globalFile and singleCpuIO options using simpler global mapping.
487      - new pairs of scatter/gather vector S/R (one for each type, generated from
488        template) corresponding to simpler global mapping.
489      - adread_write.F: switch to new S/R (but leave old calls commented) and write
490        to globalFile when parameter globalFiles is set to True.
491      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
492    o pkg/autodiff:
493      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
494        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
495        missing, just add a STOP if array type do not match.
496    o pkg/exf:
497      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
498         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
499         and rename array obsSIce to exf_iceFraction.
500    o tutorial_deep_convection:
501      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
502        for now all in this exp. code dir.
503      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
504        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
505    o eesupp/src:
506      - added SINGLE_DISK_IO option because reading of parameter files on
507        very large number of processors did not work with existing set-up
508    
509    checkpoint64o (2013/09/25)
510    o pkg/atm_phys & atm_compon_interf:
511      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
512    o tools/build_options:
513      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
514        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
515        remove CPP setting (was identical to genmake2 default).
516    o pkg/gmredi & model/src: Some updating and work done on the residual model.
517      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
518      - fixed up the calculation of the eddy stress and how it is added to the
519        external forcing via taueddy_external_forcing.F
520      - at the moment, it is very experimental and only works with the variable eddy
521        diffusivity calculated in gmredi_k3d.F
522    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
523        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
524    o testreport (& tools/do_tst_2+2):
525      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
526    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
527      - remove CPP='cpp -traditional -P' (this is genmake2 default)
528      - add switch (for big setups) to use 'medium' memory-model (but leave it
529        commented out for now). Note: needed with FC 19 to compile big setups.
530    o pkg/atm_compon_interf:
531      - regroup per field origin (model & pkgs) the coupling storage routines
532         (which accumalate in time each coupling field)
533      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
534        update accordingly + simplify aim_do_physics.F
535    
536    checkpoint64n (2013/08/26)
537    o pkg/bbl:
538      - update formulation to reduce dispersion of tracer properties in bbl
539      - replaced horizontal and vertical transport parameters with velocities
540      - changes results for verification/global_with_exf.yearly
541    o verification/halfpipe_streamice:
542      - change to matrix construction; update both Fwd & AD output.
543    o verification/tutorial_tracer_adjsens:
544      - OpenAD test: switch to vector-invariant momentum since fluxform with
545        rStar causes problems with OpenAD; update output.
546    o tools:
547      - genmake2: define a common prefix for all temp-file names ; move them
548        to local /tmp disk (but would be easy to move them back);
549      - xmakedepend: apply the same switch for temp-files.
550    o pkg/offline:
551      - changes for use with rStar (NLFS): assume that we continue to provide
552        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
553        output files) and apply r* scaling at each time-step (function of the time
554        varying Eta field); use normal pickup files (needed for restart with NLFS).
555    o adjoint with OpenAD:
556      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
557        package openad.  This package has to be compiled for all runs with OpenAD
558        instead of specifying code_oad_all as a modification directory.
559      - link the fortran templates from tools/OAD_support to the build directory
560        for preprocessing to avoid conflicts between different setups compiled
561        simultaneously and simplify cleanup.
562    o pkg/exf:
563      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
564        main model or other pkgs are exchanged in EXF_MAPFIELDS).
565    o model/src:
566      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
567        (similar to do_fields_blocking_exchanges.F).
568    o tools/genmake2:
569      - remove TAF output src code just before calling staf (when not doing a fresh
570        built, will stop if things go wrong with staf).
571      - fix target "adobj" (left from TAF version-2 transition)
572    o pkg/diagnostics:
573      - add a parameter to track the status of pkg/diagnostics activation;
574        this replace/extend the use of logical param "settingDiags" (to check
575        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
576        New S/R to print error message and stop when pkgStatus is not right.
577      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
578    
579    checkpoint64m (2013/08/13)
580    o model/inc:
581      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
582        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
583    o pkg/kpp & aim_v23:
584      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
585    o pkg/seaice:
586      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
587        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
588      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
589    o eesupp/src:
590      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
591        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
592    o switch to TAF version-2:
593      - add flow directives to "freeze" naming convention for ad-routines that
594        are used in I/O routines of adjoint state and associated common blocks
595        that are used in adcommon.h (backward compatible with version-1)
596      - update all ad-optfiles (in tools/adjoint_options + few local to some
597        verification exp) to switch to latest TAF version (currently 2.5.5);
598        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
599        out except for diva).
600      - the major change with TAF version-2 is that both the differentiated
601        routines and the forward routines (new) are returned as part of the TAF
602        output source code. Update genmake2 accordingly.
603      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
604        with version-2 when compared to TLM or FWD gradient); other experiments
605        output show minor changes (machine truncation level); update the few AD &
606        TLM output with 12 matching digits only (some prior to version-2 switch).
607    
608    checkpoint64l (2013/08/05)
609    o model/src:
610      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
611      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
612        when using TAF but only if using OpenAD.
613    o pkg/mom_common+fluxform+vecinv:
614      - always set horiz. viscosity arrays to background value before calling
615        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
616        only when using variable horiz. viscosity (useVariableVisc=T);
617      - simplify mom_vecinv.F (only 1 block for momViscosity).
618    o pkg/mom_common: variable horiz. viscosity in NH code
619      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
620        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
621      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
622        useBiharmonicVisc & useVariableVisc.
623      - fix old bug (already in 1rst implementation of variable horizontal viscosity
624        in calc_gw.F, version 1.27, 2006/06/20):
625        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
626        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
627      - change background horiz viscosity in vertical momentum (gW) to always be
628        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
629        any type of variable viscosity, e.g., viscAh/4Grid)
630      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
631        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
632        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
633        default viscAh,viscA4 is zero).
634    o model/src:
635      - extend length of drC & recip_drC from Nr to Nr+1.
636    o Divided Adjoint (DIVA) with MPI:
637      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
638      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
639        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
640    
641    checkpoint64k (2013/07/23)
642    o tools/OAD_support:
643      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
644        and remove it from genmake2.
645    o tools/build_options:
646      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
647        MPI_HEADER_FILES list (let genmake2 find the missing headers)
648    o verification/halfpipe_streamice:
649      - change to driving stress formulation; update both Fwd & AD output.
650    o tools/genmake2 and Divided Adjoint with MPI:
651      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
652      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
653      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
654        Makefile, which is set by genmake2, and check which mpi-headers are needed.
655        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
656      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
657    o testreport:
658      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
659        perform additional runs (number of additional runs is "add_DIVA_runs" taken
660        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
661    o verification/lab_sea (AD test):
662      - change to test Divided Adjoint Run in this set-up (both standard AD test
663        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
664    o pkg atm_ & ocn_compon_interf:
665      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
666        staggerTimeStep implementation) and disable (retired) corresponding
667        parameter.
668    o pkg/offline:
669      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
670      - add S/R OFFLINE_CHECK to print offline parameter summary
671        and stop if loading a file that is not used;
672      - enable to calculate GMRedi tensor, KPP mixing and convective index
673        when the corresponding file(s) is/are not specified (but pkg is used).
674      - comment out resetting of monitorFreq (to endTime) since it still useful
675        for monitoring CFL numbers and checking offline fields.
676    o OpenAD:
677      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
678        smaller standard output) and generate new (smaller) output (on baudelaire
679        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
680    o model/src:
681      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
682        (where external_forcing_adjust was called) and change list of arguments;
683      - merge external_forcing_adjust.F into external_forcing_surf.F
684      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
685        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
686        previously in file "balance_relax.F", now removed); remove corresponding
687        arrays in FFIELDS.h.
688      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
689        a hack for getting back surfaceForcingS (loaded from file) when using
690        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
691      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
692        (was getting only 11 digits for AD-grad, due to different truncation
693         error in AD code).
694    
695    checkpoint64j (2013/07/04)
696    o pkg/offline:
697      - to enable the use of other features with pkg offline (e.g., obcs),
698        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
699      - comment out "allowFreezing" (now active) in 2 offline testing exp.
700    o pkg/exf ALLOW_RUNOFTEMP
701      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
702      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
703      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
704    o pkg/atm_phys:
705      - allows to add some damping on uVel,vVel (strength only function of k).
706    o verification, ad-tests:
707      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
708        global_ocean_ebm and offline_exf_seaice.thsice.
709    o verification/halfpipe_streamice:
710      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
711        flux input boundary conditions to be ignored; a fix for this bug changed
712        verification results for forward test.
713      - add adjoint test.
714    o pkg/ptracers:
715      - allow to restart without SOM pickup (resetting SOM to zero).
716    o pkg/gmredi:
717      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
718      - It uses mixing length theory and suppression by steering level effects to
719        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
720        to JPO, for more details).
721      - It also uses the diffusivity to calculate an eddy induced streamfunction
722        based on a PV closure (rather than a buoyancy closure as in GM).
723      - New files added to pkg/gmredi:
724        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
725          induced overturning streamfunction (called from gmredi_calc_tensor)
726        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
727          for use in gmredi_k3d
728        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
729          the eddy diffusivity
730    
731    checkpoint64i (2013/06/18)
732    o pkg/cheapaml:
733      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
734        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
735        with pkg/cheapaml.
736    o utils/python: add subpackage for cubed sphere function, first example is
737        simple cs.pcol to plot 2D fields on a map
738    o pkg/streamice:
739      - This is a new package in MITgcm, which solves dynamic equations for ice
740         sheets and ice streams
741      - At the moment it is independent of atmosphere/ocean dynamics, or any
742        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
743        ed that this will change)
744      - There is a new verification exercise that tests it, halfpipe_streamice,
745        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
746        rectangular embayment
747      - halfpipe_streamice is forward-only for now, will have TAF test soon
748      - for questions, email dgoldber@mit.edu
749    o pkg/thsice:
750      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
751        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
752      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
753         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
754      - allow precip from pkg/cheapaml to make snow over seaice.
755    o pkg/cfc:
756      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
757      - remove atmos CFC 2-D arrays from common bloc (now local variables)
758      - change some hard-coded constant to run time parameter for reading and
759        and interpolating atmospheric CFC ; keep same default as previously.
760      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
761      - put arguments in standard order: myTime, myIter, myThid
762      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
763        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
764      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
765      - new routine to print summary of CFC params and check for consistency.
766    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
767      similar to thsice_advdiff.
768      Note that for the B-grid case the routine parameters uc/vc are overwritten.
769    o pkg/cfc:
770      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
771        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
772      - fix interpolation of atmphspheric CFC between Sorthern and Northern
773        hemisphere value.
774    o pkg/seaice:
775      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
776    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
777                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
778      - requires an additional time level that is stored in the pickup
779      - you can start with AB2 from a pickup without this time level with
780        pickupStrictlyMatch = .false.
781    
782    checkpoint64h (2013/05/26)
783    o pkg/cheapaml:
784      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
785        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
786      - consistent treatment of uWind,vWind location: assume everywhere in
787        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
788        (Note: was already the case for Tair,Qair advection);
789        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
790      - compute diabatic forcing only in the interior (excluding overlap regions)
791      - fill in array "Qsw" (for short-wave heating);
792      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
793        before any update (consistent with MITgcm state var diagnostics);
794      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
795        non periodic ; + adjusted for uWind,vWind (C-grid).
796    o pkg/seaice:
797      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
798        add explicitly pkg/exf in experiments that currently use pkg/seaice.
799      - allows to compile pkg/seaice without pkg/exf.
800    o tools/OAD_support:
801      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
802        of array "ourStepOf" in function rvNextAction (revolve.F90).
803    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
804      - change pkg name (to be used with other atmospheric physics pkg)
805        but by-pass CVS when making the new pkg so that we keep the CVS history.
806    o pkg/offline:
807      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
808        (previously called from pkg/dic_surfforcing_init.F)
809    o model/src:
810      - re-order sequence of calls within packages_init_variables.F, using
811        standard order, except for:
812         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
813         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
814    o new pkg: atm_phys
815      - add entry point and source code (previously in contrib
816          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
817        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
818      - re-order sequence of calls within packages_readparms.F,
819         packages_init_fixed.F and packages_write_pickup.F
820        (but skip packages_init_variables.F because of TAF issues).
821      - update contrib/*/atm_gray/ experiment.
822    o pkg/seaice (ITD code):
823      - simplify and fix the writing of pickup-files for ITD case
824    o pkg/seaice (ITD code):
825      - introduce floe size dependent lateral melt for ITD case;
826      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
827      - update seaice_itd experiment main output.
828    o pkg/thsice:
829      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
830        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
831        changed accordingly pkg/atm2d.
832    
833    checkpoint64g (2013/05/01)
834    o pkg/exf ALLOW_RUNOFTEMP
835      - if defined,  river and glacier runoff temperature can be read-in from
836        runoftempfile; runoftempfile needs to have same format as runofffile
837    o pkg/thsice (& pkg/bulk_force):
838      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
839        for energy content of Precip + RunOff & Evap (like with pkg/exf).
840      - change computation domain to always be the interior (without overlap).
841      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
842    o verification/tutorial_global_oce_biogeo:
843      - add preliminary OpenAD setup (still has problems)
844    o pkg/seaice:
845      - turn some parameters for choosing the convergence criterion of
846        the inexact Newton method (JFNK) into runtime parameters for convenience
847      - clean up seaice_calc_viscosities.F: remove/retire two options for
848        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
849        the results of lab_sea/input because a division has been replaced by
850        a multiplication with the reciprocal (sumNorm)
851      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
852        convergence of solver (changes results, of course), and to test some
853        new features
854    o model/src:
855      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
856      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
857      - move forcing adjustment (balancing surface forcing) in specific S/R
858        where might also be applied exchanges (if needed) to forcing arrays.
859    o pkg/shelfice:
860      - allow to specify the Ice-Shelf mass per unit area (instead of
861        shelficeLoadAnomaly) and do the conversion from one to the other
862      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
863        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
864        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
865        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
866      - update isomip experiment forward output (get machine truncation error
867        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
868    o verification/offline_exf_seaice:
869      revise data.seaice in input.thermo and input_ad and update results accordingly
870        HO = 0.2, SEAICE_areaLossFormula = 2,
871        SEAICE_growMeltByConv = .TRUE.,
872        SEAICE_doOpenWaterMelt = .TRUE.,
873      Improve consistency with input.thsice and fix the spurious 500m ice corners
874    o verification/global_ocean.cs32x15:
875      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
876        in icedyn (thsice+seaice-dyn) test and update output.
877    o verification/offline_exf_seaice:
878      - adjust list of tested variables (with testreport) and update
879        standard test output with better slection of monitored fields.
880    o pkg/cd_code:
881      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
882        experiment lab_sea.hb87
883    o tools/genmake2:
884      - change default makedepend from the system default to tools/xmakedepend:
885        When no makedepend is specified, select tools/xmakedepend it the test pass,
886        otherwise select the system default (if exist and pass the test) or
887        try to build cyrus-makedepend ; stop if none of the 3 works.
888    o pkg/exf & pkg/thsice:
889      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
890        for energy content of Precip + RunOff & Evap. Assumes:
891       1) Rain has same temp as Air.
892       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
893       3) Run-Off comes at the temp of surface water (with same Cp)
894       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
895        put directly into Latent Heat flux & should use water-vapor heat capacity.
896       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
897        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
898    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
899        (compile when SEAICE_ALLOW_JFNK is defined)
900    o pkg/thsice:
901      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
902        implementation): move THSICE_AVE call after the advection (called directly
903        from thsice_do_advect.F).
904    o verification/global_ocean.90x40x15 and OpenAD:
905      New experiment for OpenAD is identical to the one in input_ad except that
906        multiDimAdvection=.FALSE.,
907      There is still an issue with this.
908    o pkg/thsice:
909      - account for ice velocity (ocean relative velocity) in turbulent heat flux
910        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
911        and offline_exf_seaice (main test).
912    
913    checkpoint64f (2013/03/31)
914    o verification/OpenAD:
915      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
916    o verification/isomip, pkg/shelfice and OpenAD:
917      - add OpenAD setup to this exp and make shelfice package work with OpenAD
918    o verification/tutorial_global_oce_biogeo:
919      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
920    o verification/offline_exf_seaice:
921      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
922    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
923      - add OpenAD setup to this exp and make ptracers package work with OpenAD
924    o pkg/seaice/seaice_evp.F:
925       mask the asymmetric contribution of the ice-ocean stress (when
926       the turningAngle is non-zero) over open water to avoid stripes
927       in the EVP-solutions after many EVP-substeps. This does not change
928       the verification experiment (because turningAngle=0 in that experiment),
929       but will affect other EVP solutions with turningAngle.ne.0
930    o verification, AD & TLM output:
931      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
932        additions and multiplications which affect results at machine truncation
933        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
934        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
935        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
936        digits of matching.
937    o pkg/seaice:
938       modify lsr-algorithm so that it vectorizes AND converges by using a
939       "zebra" method: split vector loop into two with step size 2; this
940       solves a general convergence problem for the JFNK solver on a vector
941       computer. It has the potential to even improve convergence for
942       non-vector machines, but it does change the results so it is turned
943       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
944       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
945    
946    checkpoint64e (2013/03/05)
947    o pkg/ecco and several verification experiments:
948       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
949       from ecco package, and revert to unified routine in model/src/
950       Adjust verification experiments accordingly, especially gloal_oce_llc90
951       Should conclude long-standing work by Gael to reconsile the_main_loop with
952       ECCO and will enable OpenAD's revolve loop in ECCO setup.
953    o pkg/generic_advdiff:
954      - implement compressible flow method for multi-dim advection (similar to
955        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
956        TAF generates many recomputations) to use it; no yet coded with implicit
957        vertical advection.
958      - change experiment advect_cs (new output) and advect_xy (same output)
959        to test compressible flow multi-dim advection.
960    o pkg/generic_advdiff:
961      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
962        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
963    o pkg/seaice:
964      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
965        bug affects two verification experiments (lab_sea and lab_sea.hb87),
966        recover old (wrong) results by setting noSlipFac = 2. in
967        seaice_calc_strainrates.F;
968      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
969      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
970        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
971      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
972    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
973      - new subroutines seaice_lsr_tridiagu/v
974      - introduce loop bounds i/jmin/max to be able to use a restricted
975        additive Schwarz method, but not used for now.
976      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
977      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
978    o OpenAD support
979       Reorganize S/R call for overall time-stepping loop to facilitate
980       OpenAD revolve loop replacement
981       (new S/R main_do_loop.F)
982    o model/src:
983      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
984      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
985        ADAMS_BASHFORTH2.
986    o pkg/cheapaml:
987      - add new parameter (default=F, same as before) to disable full domain
988        (including land) periodicity in X & Y dir.
989      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
990        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
991        into single S/R CHEAPAML_TIMESTEP.
992    
993    checkpoint64d (2013/02/17)
994    o pkg/monitor (angular momentum):
995      - do not add Eta contribution to the total AM if using rigid-lid;
996      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
997      - horizontal discretisation: compute Zonal wind contribution separately for
998        each component (instead of from cell centered averaged) and use the 4
999        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
1000      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
1001        FreeSurf) if using vectorInvariant momentum.
1002    o model/src (horizontal grid):
1003      - move initialisation of all horizontal grid arrays to null value
1004        from specific horizontal grid S/R to main S/R INI_GRID;
1005      - add 2 new arrays to project model C-grid velocity on to zonal direction
1006        (similar to AngleCosC & -AngleSinC but at U and V point location) and
1007        compute them in S/R CALC_GRID_ANGLES.
1008    o pkg/seaice: replace a hard coded parameter by a runtime parameter
1009        SEAICE_JFNK_tolIter
1010    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
1011        preconditioner for JFNK (run LSR into the overlaps as far as possible,
1012        i.e OLx/y-2, but overwrite the solution in the overlaps)
1013      - extend loop range in seaice_calc_viscosity
1014      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
1015      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
1016      - slightly modify loops in tridiagonal solver lsr-preconditioner
1017      - by default remove the extra exchange in seaice_preconditioner with a
1018        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
1019      - modify offline_exf_seaice so that old results without RAS are reproduced
1020        for output.dyn_jfnk.txt
1021      in seaice_fgmres.F (unrelated to RAS)
1022      - add a cpp-flag option for a re-ordered mapping (potentially more
1023        efficient), but because this changes the results, turn it off by
1024        default
1025      - replace the save statement by local common blocks
1026    o utils/matlab:
1027      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
1028      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
1029        instead of local script "load_cs.m".
1030    o pkg/seaice:
1031      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
1032        to the scalarProductMetric and the unrolling. By chance this does not
1033        change the verification experiment, because of the particular domain
1034        decomposition
1035    o pkg/diagnostics:
1036      - change default missing_value from UNSET_RL to -999.
1037    o pkg/layers: improve vectorization of layers_fluxcalc.F
1038      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
1039        time spent in this routine by more than a factor of 3 on an NEC-SX8
1040      - step 2: replace search algorithm by a bisection algorithm found in
1041        Press et al. Numerical Recipes in Fortran. This algorithm can be
1042        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
1043        For now, use this algorithm only for TARGET_NEC_SX defined.
1044      - moved the search algorithm into a separate subroutine, that is kept
1045        within the same file for automatic inlining.
1046      - modified catching potential errors
1047    o pkg/ecco:
1048      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
1049    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
1050      - modifications for ALLOW_GENTIM2D_CONTROL
1051      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
1052      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
1053      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
1054      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
1055    o model/src:
1056      - account for moist thermodynamics in (dry) potential temperature equation;
1057        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
1058        and cpl_aim+ocn.
1059      - also switch to standard compiler (gfortran, was using ifort previously)
1060        for fizhi-cs experiments reference output.
1061    o pkg/ctrl:
1062      - 1st step toward generic time-varying control variable (2D) via CPP option
1063        ALLOW_GENTIM2D_CONTROL
1064      - note new namelist ctrl_nml_genarr in data.ctrl
1065    o verification/global_ocean.cs32x15:
1066      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
1067        thsice calling sequence and update "output.icedyn.txt" output file.
1068    o pkg/ptracers:
1069      - from Ryan A.: code to allow to restart a tracer at regular time interval
1070        specifying a reset frequency and a reset-phase (for each tracers).
1071    o pkg/thsice:
1072      - implement new sequence of calls for thsice+seaice:
1073          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
1074          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1075      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1076        in CPP_OPTIONS.h) to recover old sequence;
1077      - update diagnostics for Intermediate State thsice diagnostics: now filled
1078        just before advection (instead of just after advection in old sequence);
1079      - update output of experiment offline_exf_seaice (standard test);
1080      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1081        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1082    o pkg/aim_v23:
1083      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1084      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1085      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1086      - Implement new sequence of calls for seaice advection (with thsice and
1087        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1088        was done before); change aim_do_physics.F (split the bi,bj loops block);
1089      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1090    o pkg/thsice:
1091      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1092        where just seaice diffusion is used without seaice-dynamics.
1093    
1094    checkpoint64c (2013/01/18)
1095    o pkg/seaice:
1096      - add a parameter JFNKres_tFac that can replace JFNKres_t
1097        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1098      - add a line search option to the JFNK solver
1099      - move update of u/vIce and computation of initial residual into a separate
1100        routine (same file); makes the code a little easier to read (?)
1101      - the line search requires computation of the residual and for some reason
1102        I cannot do the update of u/vIce at the beginning of the Newton loop
1103        without changing the results, so we move computation of the new residual
1104        also to the end of the Newton loop, even without the line search
1105    o pkg/mdsio:
1106      - write missing value (corresponding to undefined array value) to meta files;
1107        skip this if missing value is one (UNSET_RL would be a better value for the
1108        case of undefined missing value but it's current the default missing-value);
1109        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1110    o pkg/exf & thsice:
1111      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1112        diagnostics) even when SHORTWAVE_HEATING is #undef;
1113    o verification/cfc_example:
1114      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1115        illustrate how to use it).
1116    o verification/offline_exf_seaice:
1117      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
1118        files to only one time-record.
1119      in input.thermo: narrow the 2 bands of low initial ice-concentration near
1120        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
1121        snapshot output; same mcPheePiston value as in thsice with
1122        surf-current=0.2m/s.
1123      in input.thsice: similar set-up as in input.thermo (channel with same seaice
1124        initial conditions).
1125    o verification/cfc_example:
1126      - update file "data" with more standard choice (default rotationPeriod,
1127        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
1128        set deltaTFreeSurf to deltaTtracer) and update the output.
1129    o pkg/layers:
1130      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
1131      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
1132    o verification/offline_exf_seaice:
1133      - set all {field}period to zero for constant-in-time forcing (not tested
1134        anywhere else).
1135    o verification/offline_exf_seaice:
1136      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
1137      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
1138    o model/src:
1139      - implement Finite-Volume method for (hydrostatic) presure gradient
1140        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
1141    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
1142      - In order to be compatible with the default EVP code, this requires changing
1143        the EVP code around a little; and because any small change immediately
1144        breaks the lab_sea.hb87 verification experiment, the reference output is
1145        updated two times (each time the remaining aggrement was only 2 digits):
1146        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
1147        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
1148        The adjoint test lab_sea.evp also needed to be updated.
1149      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
1150        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
1151        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
1152        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
1153        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
1154        kept obscure, because I need to test it a little more.
1155    o pkg/cheapaml:
1156      - fix few incorrect type (_RL/_RS) in subroutine calls.
1157    o pkg/seaice:
1158      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
1159        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
1160    o model/src:
1161      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
1162        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
1163        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
1164    o pkg/cheapaml:
1165      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
1166        update output of experiment cheapAML_box.
1167      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
1168        and set them only in one place (cheapaml_readparms.F).
1169      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
1170      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
1171        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
1172    o model/src/the_main_loop.F:
1173      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
1174    o pkg/seaice:
1175      - remove legacy branch code.
1176      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
1177    o verification/*/code*/SEAICE_OPTIONS.h:
1178      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
1179        SEAICE_CAP_HEFF).
1180    o pkg/cheapaml:
1181      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
1182        to load new forcing fields.
1183      - add missing "_d 0" where it's needed; + some editing (improve indentation).
1184      - remove switch to "-r8" compiler option (no longer needed) in verification
1185        cheapAML_box, keep same output (small trucation error differences).
1186    o verification/offline_exf_seaice:
1187      - add thermodynamics only test.
1188    o verification/cheapAML_box:
1189      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
1190        keep same output (same 14 digits for cg2d).
1191      - switch on "-r8" compiler option (some numerical values are missing
1192        the "_d 0") and update output (only 6 digits for cg2d were preserved).
1193    
1194    checkpoint64b (2012/12/24)
1195    o pkg/cheapaml:
1196      - remove un-used variables (Qnet,EmPmR) from pickup files.
1197      - store tendency of advected variables into cheapaml pickup file
1198        and fix the AB-2 restart.
1199    o verification/offline_exf_seaice and lab_sea adjoint:
1200      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
1201      - switch to 4 time steps in offline, consistent with lab_sea.
1202      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
1203      - update results after change of experiment seaice.
1204    o pkg/seaice:
1205      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
1206        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
1207        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
1208        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
1209    o model/src:
1210      - add run-time parameter to select CG2D solver minimum-residual solution
1211        (in case of a poor convergence).
1212    o pkg/seaice/seaice_lsr.F
1213      - move calculation of matrix coefficients into new
1214        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
1215        file; the main purpose of this change is to be able to reuse the code
1216        in S/R SEAICE_PRECONDITIONER
1217      - modify the computation of the residual so that the mass of sea-ice
1218        is not used twice; this simplifies the calculations, but since
1219        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
1220        not tested in testreport---this does not affect the testreport results.
1221    o verification/seaice_obcs:
1222      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
1223        verification/lab_sea/input.salt_plume; changes results/output.txt*
1224    o model/src:
1225      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
1226    o pkg/seaice:
1227      - improve description of parameters in seaice_fgmres.F and start
1228        cleaning up the code
1229      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
1230        second argument
1231      - add a metric based on grid cell area to SEAICE_SCALPROD; update
1232        results of offline_exf_seaice.dyn_jfnk
1233      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
1234    o pkg/aim_v23:
1235      - fix an other bug in dissipation heating (grid-cell area was missing).
1236    o model/src + pkg/seaice:
1237      - add global (multi-tile) linear solver for pair of tri-diagonal system
1238        along X and Y lines, respectively for U and V component.
1239        Note: 1) MPI and cube-exchange not yet coded.
1240            2) probably not accurate for poorly conditioned / large size problem.
1241      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
1242        default: not compiled and not used.
1243    o pkg/seaice:
1244      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
1245        introduce bi/bj loops and use global_sum_tile_rl instead of
1246        mpi_allreduce in seaice_fgmres.F
1247      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
1248      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
1249      - add a verification experiment for JFNK in offline_exf_seaice
1250    o verification:
1251      - change (for now, only fwd test) offline_exf_seaice experiment:
1252        use a re-entrant channel with idealized coastline (trapezoidal shape)
1253        at southern boundary to explore seaice dynamics and thermodynamics
1254        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
1255        secondary test (input.thsice) use thermodynamics only with SST relaxation.
1256      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
1257    o pkg/exf:
1258      - disable "sstExtrapol" when Nr=1
1259    o verification:
1260      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
1261        to test pkg/cheapaml.
1262    o pkg/aim_v23 & pkg/shap_filt:
1263      - fix dissipation heating (erroneous gravity multiplication factor).
1264    o pkg/seaice:
1265      - remove unused field pressPre from jfnk solver
1266      - rename two subroutines in seaice_preconditioner.F
1267    o eesupp/src:
1268       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
1269    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
1270       - remove wrong parts of the rhs and the lhs (were in there
1271         because I did not understand the concept of this preconditioner)
1272       - add an exchange between u- and v-sweep. This increases communication
1273         by a factor of two but improves the convergence of jfnk. Ideally,
1274         one would like the u- and v-sweep to be independent. So far within
1275         undocumented ifdefs
1276       - reorganize the extra computations for printing the residuals
1277    o tools/genmake2:
1278      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
1279        since it's not necessary (and was preventing to use MNC in some cases).
1280    
1281    checkpoint64a (2012/11/16)
1282    o pkg/autodiff:
1283      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
1284        autodiff_readparms.F no longer depends on calling order (within
1285        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
1286        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
1287        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
1288    o pkg/obcs:
1289      - adding tidal velocity forcing capability to obcs
1290        for usage example, see verification/seaice_obcs/input.tides
1291    o pkg/seaice:
1292      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
1293        SEAICE_LSRrelaxU/V
1294      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
1295    o pkg/aim_v23:
1296      - implement heating from friction (bottom friction and stratospheric drag).
1297    o pkg/shap_filt:
1298      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
1299        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
1300    o model/src:
1301      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
1302        time-constant addMass field from file (addMassFile);
1303      - support for heating due to friction (and Kinetic Energy dissipation):
1304        add option, run-time switch and 3-D field array + support code ; each pkg
1305        or S/R can add heating contribution (if there is a sink of KE); the sum is
1306        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
1307    o pkg/seaice:
1308      - complete merge of ITD code into seaice_growth.F
1309        from MITgcm_contrib/torge/itd/code/
1310        no verification so far, but Torge Martin tested
1311        "1-D test case and Beaufort set up;
1312        deliver okay results after 1 model year."
1313      - complete merge of SEAICE_SIZE.h into all relevant routines
1314      - move computation of eta at Z-points into calc_viscosities
1315        + introduce global field etaZ
1316        + add different methods for computing etaZ, for now the old
1317          method (simple averages of eta to Z-points) is hardwired
1318        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
1319          seaice_preconditioner
1320      - simplify computations for SEAICE_ZETA_SMOOTHREG
1321      - seaice_preconditioner:
1322        + replace one remaining press by pressLoc (mistake)
1323        + adjust printing of residuals
1324      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
1325        + add (SEAICE.h) and rename some counters (initiliased in
1326          seaice_init_fixed.F)
1327        + add _BEGIN/END_MASTER (myThid)  around print statements
1328        + print total number of iterations and failures over SEAICE_monFreq
1329          interval to STDOUT
1330      - move control over output-messages by fgmres to seaice_jfnk to save
1331        some operations
1332      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
1333        in order to make restarts with sol .ne. zero (fgmres with restarts)
1334        (seaice_jfnk.F, seaice_fgmres.F)
1335      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
1336        a serious convergence problem when open boundaries are involved
1337    o pkg/ggl90: fix computation of control volumes for the case of
1338      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
1339      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
1340    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
1341    o pkg/autodiff
1342      - Add inAdMode switch for SEAICEuseDYNAMICS:
1343        SEAICEuseDYNAMICSinAdMode
1344        (extend logic in ADAUTODIFF_INADMODE_SET)
1345    o pkg/seaice
1346      - Step 1 of merging ice-thickness distribution (ITD) code from
1347        MITgcm_contrib/torge/itd/ (author: Torge Martin)
1348        The code implements concept laid out in Thorndike et al. (1975);
1349        code is enabled via CPP flag SEAICE_ITD
1350        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
1351        code is not complete yet!!
1352      - SEAICE_SIZE.h now included in almost all seaice routines
1353    o verification (using seaice):
1354      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
1355        global_ocean.cs32x15.seaice ; update results.
1356      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
1357      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
1358        offline_exf_seaice (previously compiling B-grid).
1359    o pkg/exf:
1360      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
1361        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
1362        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
1363    o pkg/layers (adjust changes from Sept 19):
1364      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
1365        this allows to remove "layers_maxNum" dimension from all layers arrays.
1366    o pkg/layers (adjust changes from Sept 19):
1367      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
1368      - snap-shot extended to all type of layers (not just the 1rst type);
1369      - remove layers variables when corresponding CPP option is undef.
1370    o pkg/layers:
1371      - rename pkg/layers variable and add new output (layer exist & un-weighted
1372        velocity in layer)
1373    o pkg/seaice:
1374      - simplify (?) ocean-drag coefficent computations by using
1375        the same routine in all three solvers (saves some code lines)
1376      - remove global fields DRAGA and DRAGS from C-grid code and
1377        declare them locally in lsr.F (the only place where they are
1378        still used)
1379      - update AD output of lab_sea.evp (very sensitive anyway).
1380    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
1381      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
1382      and SEAICEuseJFNK=.true. A few things to note:
1383      - involves a FGMRES, that is parallel but very inefficient,
1384        because of many scalar products (global sums) in the Gram-Schmidt
1385        orthogonalization method. Needs to be replaced. Original code
1386        from J.-F. Lemieux
1387      - preconditioner for FGMRES is a stripped down version of LSOR
1388      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
1389        preconditioner. For the preconditioner, the default is set to 10.
1390      - Jacobian times vector is computed with finite differences
1391      - marginally related to JFNK-solver: add a smooth regularization for
1392        zeta with tanh that will improve convergence (Lemieux and Tremblay,
1393        2009) for any implicit solver (not implemented for EVP because EVP
1394        does not need this regularization in the first place). Define
1395        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
1396    o eesupp/src:
1397      - check in genmake2 that intrinsic S/R flush is available.
1398      - add S/R to flush IO unit (if intrinsic S/R flush is available)
1399      - flush standard & error msg unit before MPI termination
1400      - if debugMode, flush IO unit after printing msg
1401    o pkg/ctrl:
1402      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
1403        to ctrl_set_unpack_xyz.
1404    
1405    checkpoint64 (2012/10/09)
1406    o pkg/shelfice
1407      - in mom_fluxform.F, mom_vecinv.F:
1408        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
1409        Bug fix KappaRU -> KappaRV
1410        does not change verification/isomip but may change other setups
1411        (presumably constant KappaRU=KappaRV)
1412      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
1413    o pkg/obcs:
1414      - fixed some indexing bugs in obcs_seaice_sponge.F
1415      - added obcs relaxation subroutines for HSALT and HSNOW
1416      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
1417  o pkg/seaice:  o pkg/seaice:
1418    - add "multicategory" parameterization for snow in analogy to ice,    - add "multicategory" parameterization for snow in analogy to ice,
1419      default is off for now.      default is off for now.

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