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revision 1.1743 by mlosch, Mon Sep 24 15:07:38 2012 UTC revision 1.2015 by gforget, Sat Jun 28 22:50:34 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/autodiff :
8      - introduce useSmoothCorrel2DinAdMode, SEAICEapproxLevInAd, and
9        viscFacInAd : run time parameters allowing for adjoint switches
10        note : logic for useSmoothCorrel2DinAdMode is in ctrl_readparms.F
11    o pkg/ecco :
12      - introduce cost_gencost_boxmean.F that computes a box mean
13        temperature (for use in adjoint sensitivity studies).
14    o model/src/set_defaults.F : initialize viscFacAdj to 1.
15    o pkg/mom_common/mom_calc_visc.F :
16      - ifdef ALLOW_AUTODIFF then include viscFacAdj factor.
17    o pkg/seaice/seaice_summary.F :
18      - statement for SEAICEadjMODE now in autodiff_readparms.F
19    o pkg/seaice
20      - remove unnecessary u/vTmp from subroutine call of
21        seaice_lsr_tridiagu/v
22      - remove some store directives and add new ones in an effort to get
23        finally rid off the recomputation warnings. This is successful
24        when SEAICE_VECTORIZE_LSR ***and*** SEAICE_LSR_ADJOINT_ITER are
25        defined (i.e. no extensive recomputation warnings left), but there
26        are still too many recomputations on the solver iteration level
27      - define SEAICE_VECTORISZE_LSR in offline_exf_seaice/code_ad/SEAICE_OPTIONS.h
28      - move definition of MPSEUDOTIMESTEPS into TAMC-block in
29        SEAICE_SIZE.h
30      - add a store directive in S/R seaice_calc_viscosities
31    o pkg/seaice (ITD code):
32      - fix definition of Hlimit for multi-threaded case
33      - use double precision arithmetic to compute Hlimit: this affects results;
34        update output of experiment seaice_itd.
35    o replace content of verification/seaice_itd
36      - instead of a 1D column use the configuration of offline_exf_seaice
37        to test the ice thickness distribution code with ridging
38      - this is a first shot at this experiment
39      - change of some defaults of ridging parameters SEAICEhStar (from
40        100 to 25) and SEAICEmuRidging (from 5 to 3) in seaice_readparms.F
41        and lot of new comments.
42    
43    checkpoint64y (2014/06/20)
44    o pkg/seaice/seaice_reg_ridge.F:
45      - modify the regularization of very small volumes of ice; only check
46        total volume HEFF, and do not apply correction to individual ice
47        classes because that leads to funny patterns in the heat and fw-fluxes
48        into the ocean. Adjust seaice_itd/results/output.txt
49      - replace nITD by SEAICE_multDim in loop-ranges
50    o pkg/exf:
51      - add code to process the case field period = -12. with UV interpolation.
52      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
53        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
54    o verification/global_with_exf:
55      - switch all fields period to -12. (was previously untested) in input/data.exf
56        (but keep secondary test ".yearly" unchanged); update the reference output.
57    o pkg/cal:
58      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
59    o pkg/exf:
60      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
61        to replace logical switch "exf_verbose"
62      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
63    o pkg/sbo:
64      - update from Katherine Quinn: evaluate mass directly from density and SSH
65        (budget using Finite Volume method) instead of from bottom pressure.
66      - allow testreport to collect few selected SBO output ; tested in exp.
67        global_ocean.90x40x15 (after updating the results, to include SBO output).
68      - fix some multi-threading issues (in output part).
69    o model/src & most packages:
70      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
71      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
72        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
73        "data.{pkg}" exist ; and leave the S/R (return) just after.
74      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
75        + call LAND_READPARMS from packages_readparms.F
76    o pkg/seaice:
77      - remove code that resets useThSice in S/R seaice_readparms and
78        replace it by a warning in S/R seaice_check
79      - remove parameter MULTDIM, replace with nITD and runtime
80        parameter SEAICE_multDim (still hard-wired to nITD if
81        SEAICE_ITD is defined)
82    
83    checkpoint64x (2014/05/24)
84    o verification/lab_sea:
85      - update adjoint and TLM output following changes to pkg/salt_plume
86      - un-do the update after putting back local recip_Cp in few places.
87    o pkg/salt_plume: modifications by An Nguyen:
88      - add capability to do brine rejection (salt-plume) as function of
89        volume+tracers (instead of only salinity tracer).
90      - conserve volume by exchanging volume from each kLev to above to
91        accommodate in-coming brine volume
92      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
93      - switch KPP surf buoyancy due to brine forcing to 3-d
94        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
95      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
96      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
97        in East/West Arctic.
98    o pkg/sbo:
99      - incorporate modifications from Katherine Quinn to enable the use of sbo
100        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
101        output for future testreport verification (unfinished).
102    o pkg/atm_phys:
103      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
104        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
105        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
106    o pkg/seaice
107      seaice_calc_ice_strength.F: modify expression to avoid divisions
108        (affects truncation)
109      seaice_do_ridging.F: clean up the insectarium
110      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
111      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
112      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
113      - add some debugging information and error messages (warnings)
114    o model/src: modifications relatd to atmosphere p*:
115      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
116      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
117        of vertical profile tRef in geopotential background and anomaly.
118      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
119        and pkg/atm_phys.
120      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
121        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
122    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
123    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
124        not used right now, but can be used in BGC packages to fix conservation.
125    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
126        other packages too.
127    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
128        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
129    o model/src:
130      - since we have several heat capacity (even in model/src), define "recip_Cp"
131        as local variable (no longer in common block) to avoid any confusion.
132      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
133    o pkg/exf:
134      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
135        air density as function of air Temp, Humidity and atm pressure.
136    
137    checkpoint64w (2014/05/02)
138    o verification:
139      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
140        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
141        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
142        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
143        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
144    o model/src: for atmosphere in p* coords:
145      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
146      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
147        but not yet activated.
148    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
149      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
150      - this changes the results (but not for any verification experiment, because
151        none tests this), but avoids having an extra field in the restart files
152    o pkg/seaice: remove global variable TICE (not needed)
153      - replace by TICES or local variable where necessary (cost_seaice_test,
154        seaice_diagnostics_state)
155      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
156      - use specific read/write routines for reading and writing individual leves
157        of a multilevel field
158    o pkg/ctrl & model/inc:
159      - move additional anomaly fields of control vars (related to options:
160         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
161        from DYNVARS.h into new header file: CTRL_FIELDS.h
162    o pkg/seaice: some small modifications to the ridging code
163      - make fw2ObyRidge a global variable and add the freshwater flux to
164        seaice_growth
165      - pass actual thickness from seaice_prepare_ridging, so that it is
166        computed only in one place and compute it in the same way as in
167        seaice_growth
168      - initialise more fields in seaice_do_ridging that where cause floating
169        point exceptions over land
170    o pkg/seaice: preparations for ridging code and first real ridging code
171      - move most of "PART 1" of S/R seaice_growth into a new and separate
172        S/R seaice_reg_ridge that will both regularize the state variable after
173        advection call the actual ridging routine;
174      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
175        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
176      - remove ridging code from seaice_advdiff
177      - clean up remaining part 1 of seaice_growth in an attempt to make it
178        more readable (this is probably subjective)
179      - call seaice_itd_redist once in the initialisation phase to have the initial
180        conditions in the correct category
181      - finally: add new ridging routine for ITD code
182    
183    checkpoint64v (2014/04/11)
184    o pkg/ecco:
185      - add runtime parameters mdt[start,end]date[1,2]
186      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
187    o pkg/seaice:
188      - make deltaC a global variable, so that it can be used in ridging code
189      - first step towards ridging: introduce new routines that compute
190        ice strength based on ridging parameters
191      - add diagnostic for HSNOWITD
192      - add opnWtrFrac as a global variable (required for ridging scheme)
193    o pkg/salt_plume + pkg/seaice/seaice_growth.F
194      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
195        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
196    o verification/hs94.1x64x5:
197      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
198      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
199    o autodiff:
200      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
201        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
202        For now, only in pkgs used in verification/hs94.1x64x5.
203      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
204        which are specific to TAF/TAMC).
205      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
206        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
207        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
208      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
209        building mitgcmuv_ad (make adAll).
210    o pkg/ecco:
211      - cost_gencost_seaicev4.F:
212         reformulate proxy cost as function of sst and local param SEAICE_freeze
213         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
214      - add stop statement if old names siv4-[sst,vol] are used
215      - add snapshots + cost reports for atmospheric longwave
216      - remove factor 0.1 in front of wtau[u,v]
217      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
218         ALLOW_TMI_SST_COST_CONTRIBUTION
219    o pkg/atm_phys:
220      - add some diagnostics for Short-wave and for convection S/R.
221    o pkg/seaice/seaice_growth:
222      - fix a bug in the lateral melt parameterization for SEAICE_ITD
223        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
224      - rearrange loop order for better vector code in the same code block
225      - rewrite the floeDiameter formula to have fewer divisions
226      -  (miraculously) none of this changes the results of seaice_itd
227    o pkg/smooth:
228      - move param smooth2Ddiffnbt to pkg/ecco
229    o pkg/salt_plume:
230      - salt_plume_frac.F:
231         clean up local param names
232         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
233    o pkg/rw:
234      - add RS version of S/R READ_MFLDS_LEV.
235    o pkg/streamice:
236      - fix the restart test by writing/reading pickup_streamice files.
237    o pkg/seaice:
238      - refine checks for jfnk-related parameters
239      - comment out if statement with SEAICEuseIMEX parameter as long as there
240        is no IMEX code to avoid confusion and surprises
241    
242    checkpoint64u (2014/03/07)
243    o verification/MLAdjust:
244      - rename secondary test suffix:
245         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
246         0.leithD -> AhFlxF  + switch to flux-form
247         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
248         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
249    o pkg/mom_vecinv:
250      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
251        to be before mom_calc_visc.F)
252      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
253      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
254        this is simpler for the adjoint and for diagnostics.
255    o model/src + pkg/momentum:
256      - add input files for  2-D additional Western and Southern cell-edge wall
257         (e.g., to add "thin-wall" where it is =1).
258      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
259        using 2nd hFacZ that is computed from initial (fix domain) hFac
260      - known limitations of thin wall implementation: not yet coded for sigma
261        coords; not working with CD-scheme neither.
262    o pkg/seaice:
263      - rename recently introduced parameters from (wrong name) AB to
264        BDF (backward difference time discretisation)
265      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
266    o tools/adjoint_options:
267      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
268    
269    checkpoint64t (2014/02/01)
270    o pkg/ecco
271      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
272        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
273      - replace hard-coded record number and period which only work for monthly
274        with read-in runtime param that works for other periods (month,day,year)
275    o pkg/thsice
276      - corrected store directive fixes thsice adjoint gradient checks
277    o genmake2 & testreport:
278      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
279        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
280        Update testreport accordingly. No need to set "export OPENAD=true"
281        in adjoint_options/adjoint_oad anymore (will be removed later).
282    o pkg/shelfice:
283      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
284        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
285        so that surface forcing applies to k=kSurf if using pkg/shelfice.
286    o pkg/ctrl, pkg/grdchk, pkg/ecco:
287      - Changes to make GENARR more modular (i.e. invisible if not used)
288    o model/src/temp_integrate.F and salt_integrate.F
289      - re-include store directives that were removed on Dec 27th.
290    o model/src/external_forcing_surf.F
291      - add storage directives for EmPmR and PmEpR to avoid recomputation of
292        seaice_model in the adjoint that is problematic when seaice_model is
293        turned off in the adjoint. The resolved issue dated back to July when
294        EXTERNAL_FORCING_SURF call was moved.
295        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
296    o pkg/exf/exf_check.F
297      - fix a small bug again (originally found by Wentao Liu, now found again)
298      - streamline error output
299    o pkg/streamice and aim_v23:
300      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
301        Apple's /usr/bin/cpp knows what to do:
302        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
303        Target: x86_64-apple-darwin13.0.0
304    
305    checkpoint64s (2014/01/05)
306    o tools/adjoint_options:
307      - switch to fastopt.net TAF server (instead of default fastopt.de) for
308        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
309    o model/src:
310      - remove some unnecessary TAF storage directives in forward_step.F and
311        in dynamics.F (note: not always removed by TAF, e.g., double storage
312        of kappaRU,kappaRV in former version of dynamics.F).
313    o model/src & pkg/ptracers:
314      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
315        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
316        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
317      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
318      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
319      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
320    o useSingleCpuInput separates single-CPU input from single-CPU output;
321        for now only implemented for in exf_interp_read.F
322    o verification/advect_xy:
323      - fix missing EXCH call in local version of ini_salt.F and update output.
324    o momentum diagnostics:
325      - fix which deltaT is used in Total-Tendency diagnostics.
326      - fix typo in diagnostics for momentum tendency from AB.
327    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
328        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
329    
330    checkpoint64r (2013/12/08)
331    o verification/*/results:
332      - Update reference output of experiments that were passing with just 13 digits
333         (make it easier to detect future changes in results)
334    o model/src & pkg/ptracers:
335      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
336        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
337        to inside ptracers_integrate.F ; remove ptracers_advection.F
338    o coupling interface pkgs:
339        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
340      - change the config check to test the agreement of Ocean Depth
341        with ATM land/sea mask (instead of ATM orography);
342      - send to coupler the number of coupler time-steps to do for this run:
343        this allows to check for consistency and don't need anymore to be
344        specified in parameter file "data";
345      in coupler:
346      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
347      - improve report to log-file of config setting (pass log-file unit to few S/R)
348    o pkg/compon_communic:
349      - add coupling send/receive for non-tiled integer vector;
350      - add S/R to check and stop if any proc has an error (similar to
351        eesupp/src/stop_if_error.F but single thread and across Comm_World).
352    o pkg/exch2:
353      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
354        through list of all tiles my proc owns.
355    o model/src:
356      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
357        from rTrans) to simplify dependencies (no need to store rTrans anymore in
358        calling S/R); this affects AD results at machine truncation level:
359        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
360        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
361    o tools/build_options:
362      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
363    o coupling interface pkgs:
364        [compon_communic, atm_compon_interf & ocn_compon_interf]
365      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
366        to each S/R that needs it; remove un-used variables.
367      - change component tile registration (cpl_register.F in both compon_interf
368        and mitcomponent_tile_register.F) to pass the full list of tiles
369        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
370      - with pkg/exch2: adopt the same convention used for I/O to define mapping
371        towards coupler global array (unless W2_useE2ioLayOut=F):
372         a) can now use different tiling between atm & ocn comp.
373         b) no needs to modify the run-Off map when changing tiling (was needed
374            even if using the same tiling between atm & ocn).
375         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
376            full land tiles); not yet tested.
377      - check for valid mapping from comp. tile to coupler global array
378      - improve report of tile registration results to log file.
379    o pkg/exch2:
380      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
381        tile-registration (CPL_REGISTER);
382      - activate (un-comment) definition and setting of "W2_tileIndex" list to
383        store the local bi,bj indices of each tile;
384      - also print bi,bj in local report to log file;
385      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
386        Jun 2009 modif of pkg/exch2).
387    o testing on baudelaire:
388      - run 2 tests at a time: no significant slow down (since enough cpu) and
389        get the full set of test done earlier
390      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
391    o model/src/thermodynamics.F and routines called from it:
392      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
393        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
394        velocity (outp) by adding bolus velocity.
395      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
396        mass transport from velocity + lateral grid cell area
397      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
398      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
399     in thermodynamics.F
400      - remove k from thermodynamics.F and move it to temp_integrate.F
401        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
402        loop).
403      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
404        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
405        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
406        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
407      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
408        global_ocean.90x40x15, tutorial_global_oce_biogeo and
409        tutorial_tracer_adjsens (+ TLM output).
410    o tools/OAD_support and (verification/*/) code_oad:
411      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
412        module conversion ; remove unneeded CPP_EEOPTIONS.h.
413      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
414        version (closer to model/inc/CPP_OPTIONS.h).
415    o model/src:
416      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
417        retired list of parameters (routine FREEZE has been replace by surface
418        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
419    o pkg/gmredi:
420      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
421        velocity (same scheme but affects machine truncation) for GM_AdvForm.
422      - update output of FWD experiments: front_relax.bvp,
423        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
424    
425    checkpoint64q (2013/11/17)
426    o verification:
427      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
428        tutorial_global_oce_biogeo and global_ocean.90x40x15.
429      - generate new output (growth & melt) for seaice_itd experiment after
430        updating the input pickup_seaice files (previously wrong).
431    o pkg/cost:
432      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
433        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
434        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
435          cannot be applied to var in common block).
436        o allows to get results independent of tile-per-proc setting (if using
437          slower GLOBAL_SUM_SEND_RECV option).
438      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
439        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
440        forward gradients: update output).
441      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
442        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
443    o pkg/mom_common:
444      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
445        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
446        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
447        ensure that all field value that are used are set.
448    o tutorial_deep_convection (smag3d):
449      - add missing scaling in mom_calc_smag_3d.F;
450      - set smag3D_coeff in input.smag3d such that results do not change.
451    o pkg/dic:
452      - change dic_cost.F to compute cost on each tile first and then apply
453        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
454        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
455      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
456    o eesupp/src & pkg/mdsio:
457      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
458        (from pkg/mdsio) since they are no longer used for tape IO.
459      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
460        (+ keep a copy in pkg/atm_ocn_coupler).
461    o verification/isomip:
462      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
463    o tools/build_options:
464      - optfile linux_amd64_ifort11, fast (no ieee) case:
465        to get a working restart for all experiments, add "-fp-model source"
466        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
467    
468    checkpoint64p (2013/10/20)
469    o pkg/autodiff:
470      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
471        criteria, return to simple (default) tape IO format.
472    o pkg/mdsio (+ eesupp/src):
473      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
474        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
475      - fix globalFile and singleCpuIO options using simpler global mapping.
476      - new pairs of scatter/gather vector S/R (one for each type, generated from
477        template) corresponding to simpler global mapping.
478      - adread_write.F: switch to new S/R (but leave old calls commented) and write
479        to globalFile when parameter globalFiles is set to True.
480      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
481    o pkg/autodiff:
482      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
483        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
484        missing, just add a STOP if array type do not match.
485    o pkg/exf:
486      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
487         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
488         and rename array obsSIce to exf_iceFraction.
489    o tutorial_deep_convection:
490      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
491        for now all in this exp. code dir.
492      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
493        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
494    o eesupp/src:
495      - added SINGLE_DISK_IO option because reading of parameter files on
496        very large number of processors did not work with existing set-up
497    
498    checkpoint64o (2013/09/25)
499    o pkg/atm_phys & atm_compon_interf:
500      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
501    o tools/build_options:
502      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
503        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
504        remove CPP setting (was identical to genmake2 default).
505    o pkg/gmredi & model/src: Some updating and work done on the residual model.
506      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
507      - fixed up the calculation of the eddy stress and how it is added to the
508        external forcing via taueddy_external_forcing.F
509      - at the moment, it is very experimental and only works with the variable eddy
510        diffusivity calculated in gmredi_k3d.F
511    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
512        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
513    o testreport (& tools/do_tst_2+2):
514      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
515    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
516      - remove CPP='cpp -traditional -P' (this is genmake2 default)
517      - add switch (for big setups) to use 'medium' memory-model (but leave it
518        commented out for now). Note: needed with FC 19 to compile big setups.
519    o pkg/atm_compon_interf:
520      - regroup per field origin (model & pkgs) the coupling storage routines
521         (which accumalate in time each coupling field)
522      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
523        update accordingly + simplify aim_do_physics.F
524    
525    checkpoint64n (2013/08/26)
526    o pkg/bbl:
527      - update formulation to reduce dispersion of tracer properties in bbl
528      - replaced horizontal and vertical transport parameters with velocities
529      - changes results for verification/global_with_exf.yearly
530    o verification/halfpipe_streamice:
531      - change to matrix construction; update both Fwd & AD output.
532    o verification/tutorial_tracer_adjsens:
533      - OpenAD test: switch to vector-invariant momentum since fluxform with
534        rStar causes problems with OpenAD; update output.
535    o tools:
536      - genmake2: define a common prefix for all temp-file names ; move them
537        to local /tmp disk (but would be easy to move them back);
538      - xmakedepend: apply the same switch for temp-files.
539    o pkg/offline:
540      - changes for use with rStar (NLFS): assume that we continue to provide
541        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
542        output files) and apply r* scaling at each time-step (function of the time
543        varying Eta field); use normal pickup files (needed for restart with NLFS).
544    o adjoint with OpenAD:
545      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
546        package openad.  This package has to be compiled for all runs with OpenAD
547        instead of specifying code_oad_all as a modification directory.
548      - link the fortran templates from tools/OAD_support to the build directory
549        for preprocessing to avoid conflicts between different setups compiled
550        simultaneously and simplify cleanup.
551    o pkg/exf:
552      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
553        main model or other pkgs are exchanged in EXF_MAPFIELDS).
554    o model/src:
555      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
556        (similar to do_fields_blocking_exchanges.F).
557    o tools/genmake2:
558      - remove TAF output src code just before calling staf (when not doing a fresh
559        built, will stop if things go wrong with staf).
560      - fix target "adobj" (left from TAF version-2 transition)
561    o pkg/diagnostics:
562      - add a parameter to track the status of pkg/diagnostics activation;
563        this replace/extend the use of logical param "settingDiags" (to check
564        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
565        New S/R to print error message and stop when pkgStatus is not right.
566      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
567    
568    checkpoint64m (2013/08/13)
569    o model/inc:
570      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
571        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
572    o pkg/kpp & aim_v23:
573      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
574    o pkg/seaice:
575      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
576        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
577      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
578    o eesupp/src:
579      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
580        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
581    o switch to TAF version-2:
582      - add flow directives to "freeze" naming convention for ad-routines that
583        are used in I/O routines of adjoint state and associated common blocks
584        that are used in adcommon.h (backward compatible with version-1)
585      - update all ad-optfiles (in tools/adjoint_options + few local to some
586        verification exp) to switch to latest TAF version (currently 2.5.5);
587        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
588        out except for diva).
589      - the major change with TAF version-2 is that both the differentiated
590        routines and the forward routines (new) are returned as part of the TAF
591        output source code. Update genmake2 accordingly.
592      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
593        with version-2 when compared to TLM or FWD gradient); other experiments
594        output show minor changes (machine truncation level); update the few AD &
595        TLM output with 12 matching digits only (some prior to version-2 switch).
596    
597    checkpoint64l (2013/08/05)
598    o model/src:
599      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
600      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
601        when using TAF but only if using OpenAD.
602    o pkg/mom_common+fluxform+vecinv:
603      - always set horiz. viscosity arrays to background value before calling
604        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
605        only when using variable horiz. viscosity (useVariableVisc=T);
606      - simplify mom_vecinv.F (only 1 block for momViscosity).
607    o pkg/mom_common: variable horiz. viscosity in NH code
608      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
609        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
610      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
611        useBiharmonicVisc & useVariableVisc.
612      - fix old bug (already in 1rst implementation of variable horizontal viscosity
613        in calc_gw.F, version 1.27, 2006/06/20):
614        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
615        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
616      - change background horiz viscosity in vertical momentum (gW) to always be
617        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
618        any type of variable viscosity, e.g., viscAh/4Grid)
619      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
620        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
621        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
622        default viscAh,viscA4 is zero).
623    o model/src:
624      - extend length of drC & recip_drC from Nr to Nr+1.
625    o Divided Adjoint (DIVA) with MPI:
626      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
627      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
628        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
629    
630    checkpoint64k (2013/07/23)
631    o tools/OAD_support:
632      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
633        and remove it from genmake2.
634    o tools/build_options:
635      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
636        MPI_HEADER_FILES list (let genmake2 find the missing headers)
637    o verification/halfpipe_streamice:
638      - change to driving stress formulation; update both Fwd & AD output.
639    o tools/genmake2 and Divided Adjoint with MPI:
640      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
641      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
642      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
643        Makefile, which is set by genmake2, and check which mpi-headers are needed.
644        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
645      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
646    o testreport:
647      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
648        perform additional runs (number of additional runs is "add_DIVA_runs" taken
649        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
650    o verification/lab_sea (AD test):
651      - change to test Divided Adjoint Run in this set-up (both standard AD test
652        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
653    o pkg atm_ & ocn_compon_interf:
654      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
655        staggerTimeStep implementation) and disable (retired) corresponding
656        parameter.
657    o pkg/offline:
658      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
659      - add S/R OFFLINE_CHECK to print offline parameter summary
660        and stop if loading a file that is not used;
661      - enable to calculate GMRedi tensor, KPP mixing and convective index
662        when the corresponding file(s) is/are not specified (but pkg is used).
663      - comment out resetting of monitorFreq (to endTime) since it still useful
664        for monitoring CFL numbers and checking offline fields.
665    o OpenAD:
666      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
667        smaller standard output) and generate new (smaller) output (on baudelaire
668        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
669    o model/src:
670      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
671        (where external_forcing_adjust was called) and change list of arguments;
672      - merge external_forcing_adjust.F into external_forcing_surf.F
673      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
674        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
675        previously in file "balance_relax.F", now removed); remove corresponding
676        arrays in FFIELDS.h.
677      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
678        a hack for getting back surfaceForcingS (loaded from file) when using
679        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
680      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
681        (was getting only 11 digits for AD-grad, due to different truncation
682         error in AD code).
683    
684    checkpoint64j (2013/07/04)
685    o pkg/offline:
686      - to enable the use of other features with pkg offline (e.g., obcs),
687        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
688      - comment out "allowFreezing" (now active) in 2 offline testing exp.
689    o pkg/exf ALLOW_RUNOFTEMP
690      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
691      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
692      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
693    o pkg/atm_phys:
694      - allows to add some damping on uVel,vVel (strength only function of k).
695    o verification, ad-tests:
696      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
697        global_ocean_ebm and offline_exf_seaice.thsice.
698    o verification/halfpipe_streamice:
699      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
700        flux input boundary conditions to be ignored; a fix for this bug changed
701        verification results for forward test.
702      - add adjoint test.
703    o pkg/ptracers:
704      - allow to restart without SOM pickup (resetting SOM to zero).
705    o pkg/gmredi:
706      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
707      - It uses mixing length theory and suppression by steering level effects to
708        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
709        to JPO, for more details).
710      - It also uses the diffusivity to calculate an eddy induced streamfunction
711        based on a PV closure (rather than a buoyancy closure as in GM).
712      - New files added to pkg/gmredi:
713        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
714          induced overturning streamfunction (called from gmredi_calc_tensor)
715        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
716          for use in gmredi_k3d
717        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
718          the eddy diffusivity
719    
720    checkpoint64i (2013/06/18)
721    o pkg/cheapaml:
722      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
723        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
724        with pkg/cheapaml.
725    o utils/python: add subpackage for cubed sphere function, first example is
726        simple cs.pcol to plot 2D fields on a map
727    o pkg/streamice:
728      - This is a new package in MITgcm, which solves dynamic equations for ice
729         sheets and ice streams
730      - At the moment it is independent of atmosphere/ocean dynamics, or any
731        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
732        ed that this will change)
733      - There is a new verification exercise that tests it, halfpipe_streamice,
734        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
735        rectangular embayment
736      - halfpipe_streamice is forward-only for now, will have TAF test soon
737      - for questions, email dgoldber@mit.edu
738    o pkg/thsice:
739      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
740        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
741      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
742         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
743      - allow precip from pkg/cheapaml to make snow over seaice.
744    o pkg/cfc:
745      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
746      - remove atmos CFC 2-D arrays from common bloc (now local variables)
747      - change some hard-coded constant to run time parameter for reading and
748        and interpolating atmospheric CFC ; keep same default as previously.
749      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
750      - put arguments in standard order: myTime, myIter, myThid
751      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
752        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
753      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
754      - new routine to print summary of CFC params and check for consistency.
755    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
756      similar to thsice_advdiff.
757      Note that for the B-grid case the routine parameters uc/vc are overwritten.
758    o pkg/cfc:
759      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
760        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
761      - fix interpolation of atmphspheric CFC between Sorthern and Northern
762        hemisphere value.
763    o pkg/seaice:
764      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
765    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
766                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
767      - requires an additional time level that is stored in the pickup
768      - you can start with AB2 from a pickup without this time level with
769        pickupStrictlyMatch = .false.
770    
771    checkpoint64h (2013/05/26)
772    o pkg/cheapaml:
773      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
774        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
775      - consistent treatment of uWind,vWind location: assume everywhere in
776        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
777        (Note: was already the case for Tair,Qair advection);
778        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
779      - compute diabatic forcing only in the interior (excluding overlap regions)
780      - fill in array "Qsw" (for short-wave heating);
781      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
782        before any update (consistent with MITgcm state var diagnostics);
783      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
784        non periodic ; + adjusted for uWind,vWind (C-grid).
785    o pkg/seaice:
786      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
787        add explicitly pkg/exf in experiments that currently use pkg/seaice.
788      - allows to compile pkg/seaice without pkg/exf.
789    o tools/OAD_support:
790      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
791        of array "ourStepOf" in function rvNextAction (revolve.F90).
792    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
793      - change pkg name (to be used with other atmospheric physics pkg)
794        but by-pass CVS when making the new pkg so that we keep the CVS history.
795    o pkg/offline:
796      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
797        (previously called from pkg/dic_surfforcing_init.F)
798    o model/src:
799      - re-order sequence of calls within packages_init_variables.F, using
800        standard order, except for:
801         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
802         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
803    o new pkg: atm_phys
804      - add entry point and source code (previously in contrib
805          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
806        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
807      - re-order sequence of calls within packages_readparms.F,
808         packages_init_fixed.F and packages_write_pickup.F
809        (but skip packages_init_variables.F because of TAF issues).
810      - update contrib/*/atm_gray/ experiment.
811    o pkg/seaice (ITD code):
812      - simplify and fix the writing of pickup-files for ITD case
813    o pkg/seaice (ITD code):
814      - introduce floe size dependent lateral melt for ITD case;
815      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
816      - update seaice_itd experiment main output.
817    o pkg/thsice:
818      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
819        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
820        changed accordingly pkg/atm2d.
821    
822    checkpoint64g (2013/05/01)
823    o pkg/exf ALLOW_RUNOFTEMP
824      - if defined,  river and glacier runoff temperature can be read-in from
825        runoftempfile; runoftempfile needs to have same format as runofffile
826    o pkg/thsice (& pkg/bulk_force):
827      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
828        for energy content of Precip + RunOff & Evap (like with pkg/exf).
829      - change computation domain to always be the interior (without overlap).
830      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
831    o verification/tutorial_global_oce_biogeo:
832      - add preliminary OpenAD setup (still has problems)
833    o pkg/seaice:
834      - turn some parameters for choosing the convergence criterion of
835        the inexact Newton method (JFNK) into runtime parameters for convenience
836      - clean up seaice_calc_viscosities.F: remove/retire two options for
837        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
838        the results of lab_sea/input because a division has been replaced by
839        a multiplication with the reciprocal (sumNorm)
840      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
841        convergence of solver (changes results, of course), and to test some
842        new features
843    o model/src:
844      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
845      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
846      - move forcing adjustment (balancing surface forcing) in specific S/R
847        where might also be applied exchanges (if needed) to forcing arrays.
848    o pkg/shelfice:
849      - allow to specify the Ice-Shelf mass per unit area (instead of
850        shelficeLoadAnomaly) and do the conversion from one to the other
851      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
852        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
853        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
854        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
855      - update isomip experiment forward output (get machine truncation error
856        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
857    o verification/offline_exf_seaice:
858      revise data.seaice in input.thermo and input_ad and update results accordingly
859        HO = 0.2, SEAICE_areaLossFormula = 2,
860        SEAICE_growMeltByConv = .TRUE.,
861        SEAICE_doOpenWaterMelt = .TRUE.,
862      Improve consistency with input.thsice and fix the spurious 500m ice corners
863    o verification/global_ocean.cs32x15:
864      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
865        in icedyn (thsice+seaice-dyn) test and update output.
866    o verification/offline_exf_seaice:
867      - adjust list of tested variables (with testreport) and update
868        standard test output with better slection of monitored fields.
869    o pkg/cd_code:
870      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
871        experiment lab_sea.hb87
872    o tools/genmake2:
873      - change default makedepend from the system default to tools/xmakedepend:
874        When no makedepend is specified, select tools/xmakedepend it the test pass,
875        otherwise select the system default (if exist and pass the test) or
876        try to build cyrus-makedepend ; stop if none of the 3 works.
877    o pkg/exf & pkg/thsice:
878      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
879        for energy content of Precip + RunOff & Evap. Assumes:
880       1) Rain has same temp as Air.
881       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
882       3) Run-Off comes at the temp of surface water (with same Cp)
883       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
884        put directly into Latent Heat flux & should use water-vapor heat capacity.
885       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
886        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
887    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
888        (compile when SEAICE_ALLOW_JFNK is defined)
889    o pkg/thsice:
890      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
891        implementation): move THSICE_AVE call after the advection (called directly
892        from thsice_do_advect.F).
893    o verification/global_ocean.90x40x15 and OpenAD:
894      New experiment for OpenAD is identical to the one in input_ad except that
895        multiDimAdvection=.FALSE.,
896      There is still an issue with this.
897    o pkg/thsice:
898      - account for ice velocity (ocean relative velocity) in turbulent heat flux
899        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
900        and offline_exf_seaice (main test).
901    
902    checkpoint64f (2013/03/31)
903    o verification/OpenAD:
904      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
905    o verification/isomip, pkg/shelfice and OpenAD:
906      - add OpenAD setup to this exp and make shelfice package work with OpenAD
907    o verification/tutorial_global_oce_biogeo:
908      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
909    o verification/offline_exf_seaice:
910      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
911    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
912      - add OpenAD setup to this exp and make ptracers package work with OpenAD
913    o pkg/seaice/seaice_evp.F:
914       mask the asymmetric contribution of the ice-ocean stress (when
915       the turningAngle is non-zero) over open water to avoid stripes
916       in the EVP-solutions after many EVP-substeps. This does not change
917       the verification experiment (because turningAngle=0 in that experiment),
918       but will affect other EVP solutions with turningAngle.ne.0
919    o verification, AD & TLM output:
920      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
921        additions and multiplications which affect results at machine truncation
922        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
923        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
924        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
925        digits of matching.
926    o pkg/seaice:
927       modify lsr-algorithm so that it vectorizes AND converges by using a
928       "zebra" method: split vector loop into two with step size 2; this
929       solves a general convergence problem for the JFNK solver on a vector
930       computer. It has the potential to even improve convergence for
931       non-vector machines, but it does change the results so it is turned
932       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
933       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
934    
935    checkpoint64e (2013/03/05)
936    o pkg/ecco and several verification experiments:
937       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
938       from ecco package, and revert to unified routine in model/src/
939       Adjust verification experiments accordingly, especially gloal_oce_llc90
940       Should conclude long-standing work by Gael to reconsile the_main_loop with
941       ECCO and will enable OpenAD's revolve loop in ECCO setup.
942    o pkg/generic_advdiff:
943      - implement compressible flow method for multi-dim advection (similar to
944        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
945        TAF generates many recomputations) to use it; no yet coded with implicit
946        vertical advection.
947      - change experiment advect_cs (new output) and advect_xy (same output)
948        to test compressible flow multi-dim advection.
949    o pkg/generic_advdiff:
950      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
951        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
952    o pkg/seaice:
953      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
954        bug affects two verification experiments (lab_sea and lab_sea.hb87),
955        recover old (wrong) results by setting noSlipFac = 2. in
956        seaice_calc_strainrates.F;
957      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
958      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
959        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
960      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
961    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
962      - new subroutines seaice_lsr_tridiagu/v
963      - introduce loop bounds i/jmin/max to be able to use a restricted
964        additive Schwarz method, but not used for now.
965      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
966      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
967    o OpenAD support
968       Reorganize S/R call for overall time-stepping loop to facilitate
969       OpenAD revolve loop replacement
970       (new S/R main_do_loop.F)
971    o model/src:
972      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
973      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
974        ADAMS_BASHFORTH2.
975    o pkg/cheapaml:
976      - add new parameter (default=F, same as before) to disable full domain
977        (including land) periodicity in X & Y dir.
978      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
979        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
980        into single S/R CHEAPAML_TIMESTEP.
981    
982    checkpoint64d (2013/02/17)
983    o pkg/monitor (angular momentum):
984      - do not add Eta contribution to the total AM if using rigid-lid;
985      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
986      - horizontal discretisation: compute Zonal wind contribution separately for
987        each component (instead of from cell centered averaged) and use the 4
988        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
989      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
990        FreeSurf) if using vectorInvariant momentum.
991    o model/src (horizontal grid):
992      - move initialisation of all horizontal grid arrays to null value
993        from specific horizontal grid S/R to main S/R INI_GRID;
994      - add 2 new arrays to project model C-grid velocity on to zonal direction
995        (similar to AngleCosC & -AngleSinC but at U and V point location) and
996        compute them in S/R CALC_GRID_ANGLES.
997    o pkg/seaice: replace a hard coded parameter by a runtime parameter
998        SEAICE_JFNK_tolIter
999    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
1000        preconditioner for JFNK (run LSR into the overlaps as far as possible,
1001        i.e OLx/y-2, but overwrite the solution in the overlaps)
1002      - extend loop range in seaice_calc_viscosity
1003      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
1004      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
1005      - slightly modify loops in tridiagonal solver lsr-preconditioner
1006      - by default remove the extra exchange in seaice_preconditioner with a
1007        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
1008      - modify offline_exf_seaice so that old results without RAS are reproduced
1009        for output.dyn_jfnk.txt
1010      in seaice_fgmres.F (unrelated to RAS)
1011      - add a cpp-flag option for a re-ordered mapping (potentially more
1012        efficient), but because this changes the results, turn it off by
1013        default
1014      - replace the save statement by local common blocks
1015    o utils/matlab:
1016      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
1017      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
1018        instead of local script "load_cs.m".
1019    o pkg/seaice:
1020      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
1021        to the scalarProductMetric and the unrolling. By chance this does not
1022        change the verification experiment, because of the particular domain
1023        decomposition
1024    o pkg/diagnostics:
1025      - change default missing_value from UNSET_RL to -999.
1026    o pkg/layers: improve vectorization of layers_fluxcalc.F
1027      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
1028        time spent in this routine by more than a factor of 3 on an NEC-SX8
1029      - step 2: replace search algorithm by a bisection algorithm found in
1030        Press et al. Numerical Recipes in Fortran. This algorithm can be
1031        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
1032        For now, use this algorithm only for TARGET_NEC_SX defined.
1033      - moved the search algorithm into a separate subroutine, that is kept
1034        within the same file for automatic inlining.
1035      - modified catching potential errors
1036    o pkg/ecco:
1037      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
1038    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
1039      - modifications for ALLOW_GENTIM2D_CONTROL
1040      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
1041      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
1042      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
1043      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
1044    o model/src:
1045      - account for moist thermodynamics in (dry) potential temperature equation;
1046        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
1047        and cpl_aim+ocn.
1048      - also switch to standard compiler (gfortran, was using ifort previously)
1049        for fizhi-cs experiments reference output.
1050    o pkg/ctrl:
1051      - 1st step toward generic time-varying control variable (2D) via CPP option
1052        ALLOW_GENTIM2D_CONTROL
1053      - note new namelist ctrl_nml_genarr in data.ctrl
1054    o verification/global_ocean.cs32x15:
1055      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
1056        thsice calling sequence and update "output.icedyn.txt" output file.
1057    o pkg/ptracers:
1058      - from Ryan A.: code to allow to restart a tracer at regular time interval
1059        specifying a reset frequency and a reset-phase (for each tracers).
1060    o pkg/thsice:
1061      - implement new sequence of calls for thsice+seaice:
1062          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
1063          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1064      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1065        in CPP_OPTIONS.h) to recover old sequence;
1066      - update diagnostics for Intermediate State thsice diagnostics: now filled
1067        just before advection (instead of just after advection in old sequence);
1068      - update output of experiment offline_exf_seaice (standard test);
1069      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1070        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1071    o pkg/aim_v23:
1072      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1073      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1074      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1075      - Implement new sequence of calls for seaice advection (with thsice and
1076        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1077        was done before); change aim_do_physics.F (split the bi,bj loops block);
1078      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1079    o pkg/thsice:
1080      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1081        where just seaice diffusion is used without seaice-dynamics.
1082    
1083    checkpoint64c (2013/01/18)
1084    o pkg/seaice:
1085      - add a parameter JFNKres_tFac that can replace JFNKres_t
1086        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1087      - add a line search option to the JFNK solver
1088      - move update of u/vIce and computation of initial residual into a separate
1089        routine (same file); makes the code a little easier to read (?)
1090      - the line search requires computation of the residual and for some reason
1091        I cannot do the update of u/vIce at the beginning of the Newton loop
1092        without changing the results, so we move computation of the new residual
1093        also to the end of the Newton loop, even without the line search
1094    o pkg/mdsio:
1095      - write missing value (corresponding to undefined array value) to meta files;
1096        skip this if missing value is one (UNSET_RL would be a better value for the
1097        case of undefined missing value but it's current the default missing-value);
1098        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1099    o pkg/exf & thsice:
1100      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1101        diagnostics) even when SHORTWAVE_HEATING is #undef;
1102    o verification/cfc_example:
1103      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1104        illustrate how to use it).
1105    o verification/offline_exf_seaice:
1106      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
1107        files to only one time-record.
1108      in input.thermo: narrow the 2 bands of low initial ice-concentration near
1109        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
1110        snapshot output; same mcPheePiston value as in thsice with
1111        surf-current=0.2m/s.
1112      in input.thsice: similar set-up as in input.thermo (channel with same seaice
1113        initial conditions).
1114    o verification/cfc_example:
1115      - update file "data" with more standard choice (default rotationPeriod,
1116        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
1117        set deltaTFreeSurf to deltaTtracer) and update the output.
1118    o pkg/layers:
1119      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
1120      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
1121    o verification/offline_exf_seaice:
1122      - set all {field}period to zero for constant-in-time forcing (not tested
1123        anywhere else).
1124    o verification/offline_exf_seaice:
1125      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
1126      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
1127    o model/src:
1128      - implement Finite-Volume method for (hydrostatic) presure gradient
1129        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
1130    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
1131      - In order to be compatible with the default EVP code, this requires changing
1132        the EVP code around a little; and because any small change immediately
1133        breaks the lab_sea.hb87 verification experiment, the reference output is
1134        updated two times (each time the remaining aggrement was only 2 digits):
1135        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
1136        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
1137        The adjoint test lab_sea.evp also needed to be updated.
1138      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
1139        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
1140        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
1141        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
1142        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
1143        kept obscure, because I need to test it a little more.
1144    o pkg/cheapaml:
1145      - fix few incorrect type (_RL/_RS) in subroutine calls.
1146    o pkg/seaice:
1147      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
1148        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
1149    o model/src:
1150      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
1151        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
1152        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
1153    o pkg/cheapaml:
1154      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
1155        update output of experiment cheapAML_box.
1156      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
1157        and set them only in one place (cheapaml_readparms.F).
1158      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
1159      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
1160        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
1161    o model/src/the_main_loop.F:
1162      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
1163    o pkg/seaice:
1164      - remove legacy branch code.
1165      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
1166    o verification/*/code*/SEAICE_OPTIONS.h:
1167      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
1168        SEAICE_CAP_HEFF).
1169    o pkg/cheapaml:
1170      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
1171        to load new forcing fields.
1172      - add missing "_d 0" where it's needed; + some editing (improve indentation).
1173      - remove switch to "-r8" compiler option (no longer needed) in verification
1174        cheapAML_box, keep same output (small trucation error differences).
1175    o verification/offline_exf_seaice:
1176      - add thermodynamics only test.
1177    o verification/cheapAML_box:
1178      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
1179        keep same output (same 14 digits for cg2d).
1180      - switch on "-r8" compiler option (some numerical values are missing
1181        the "_d 0") and update output (only 6 digits for cg2d were preserved).
1182    
1183    checkpoint64b (2012/12/24)
1184    o pkg/cheapaml:
1185      - remove un-used variables (Qnet,EmPmR) from pickup files.
1186      - store tendency of advected variables into cheapaml pickup file
1187        and fix the AB-2 restart.
1188    o verification/offline_exf_seaice and lab_sea adjoint:
1189      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
1190      - switch to 4 time steps in offline, consistent with lab_sea.
1191      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
1192      - update results after change of experiment seaice.
1193    o pkg/seaice:
1194      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
1195        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
1196        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
1197        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
1198    o model/src:
1199      - add run-time parameter to select CG2D solver minimum-residual solution
1200        (in case of a poor convergence).
1201    o pkg/seaice/seaice_lsr.F
1202      - move calculation of matrix coefficients into new
1203        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
1204        file; the main purpose of this change is to be able to reuse the code
1205        in S/R SEAICE_PRECONDITIONER
1206      - modify the computation of the residual so that the mass of sea-ice
1207        is not used twice; this simplifies the calculations, but since
1208        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
1209        not tested in testreport---this does not affect the testreport results.
1210    o verification/seaice_obcs:
1211      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
1212        verification/lab_sea/input.salt_plume; changes results/output.txt*
1213    o model/src:
1214      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
1215    o pkg/seaice:
1216      - improve description of parameters in seaice_fgmres.F and start
1217        cleaning up the code
1218      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
1219        second argument
1220      - add a metric based on grid cell area to SEAICE_SCALPROD; update
1221        results of offline_exf_seaice.dyn_jfnk
1222      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
1223    o pkg/aim_v23:
1224      - fix an other bug in dissipation heating (grid-cell area was missing).
1225    o model/src + pkg/seaice:
1226      - add global (multi-tile) linear solver for pair of tri-diagonal system
1227        along X and Y lines, respectively for U and V component.
1228        Note: 1) MPI and cube-exchange not yet coded.
1229            2) probably not accurate for poorly conditioned / large size problem.
1230      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
1231        default: not compiled and not used.
1232    o pkg/seaice:
1233      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
1234        introduce bi/bj loops and use global_sum_tile_rl instead of
1235        mpi_allreduce in seaice_fgmres.F
1236      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
1237      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
1238      - add a verification experiment for JFNK in offline_exf_seaice
1239    o verification:
1240      - change (for now, only fwd test) offline_exf_seaice experiment:
1241        use a re-entrant channel with idealized coastline (trapezoidal shape)
1242        at southern boundary to explore seaice dynamics and thermodynamics
1243        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
1244        secondary test (input.thsice) use thermodynamics only with SST relaxation.
1245      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
1246    o pkg/exf:
1247      - disable "sstExtrapol" when Nr=1
1248    o verification:
1249      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
1250        to test pkg/cheapaml.
1251    o pkg/aim_v23 & pkg/shap_filt:
1252      - fix dissipation heating (erroneous gravity multiplication factor).
1253    o pkg/seaice:
1254      - remove unused field pressPre from jfnk solver
1255      - rename two subroutines in seaice_preconditioner.F
1256    o eesupp/src:
1257       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
1258    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
1259       - remove wrong parts of the rhs and the lhs (were in there
1260         because I did not understand the concept of this preconditioner)
1261       - add an exchange between u- and v-sweep. This increases communication
1262         by a factor of two but improves the convergence of jfnk. Ideally,
1263         one would like the u- and v-sweep to be independent. So far within
1264         undocumented ifdefs
1265       - reorganize the extra computations for printing the residuals
1266    o tools/genmake2:
1267      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
1268        since it's not necessary (and was preventing to use MNC in some cases).
1269    
1270    checkpoint64a (2012/11/16)
1271    o pkg/autodiff:
1272      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
1273        autodiff_readparms.F no longer depends on calling order (within
1274        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
1275        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
1276        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
1277    o pkg/obcs:
1278      - adding tidal velocity forcing capability to obcs
1279        for usage example, see verification/seaice_obcs/input.tides
1280    o pkg/seaice:
1281      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
1282        SEAICE_LSRrelaxU/V
1283      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
1284    o pkg/aim_v23:
1285      - implement heating from friction (bottom friction and stratospheric drag).
1286    o pkg/shap_filt:
1287      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
1288        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
1289    o model/src:
1290      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
1291        time-constant addMass field from file (addMassFile);
1292      - support for heating due to friction (and Kinetic Energy dissipation):
1293        add option, run-time switch and 3-D field array + support code ; each pkg
1294        or S/R can add heating contribution (if there is a sink of KE); the sum is
1295        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
1296    o pkg/seaice:
1297      - complete merge of ITD code into seaice_growth.F
1298        from MITgcm_contrib/torge/itd/code/
1299        no verification so far, but Torge Martin tested
1300        "1-D test case and Beaufort set up;
1301        deliver okay results after 1 model year."
1302      - complete merge of SEAICE_SIZE.h into all relevant routines
1303      - move computation of eta at Z-points into calc_viscosities
1304        + introduce global field etaZ
1305        + add different methods for computing etaZ, for now the old
1306          method (simple averages of eta to Z-points) is hardwired
1307        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
1308          seaice_preconditioner
1309      - simplify computations for SEAICE_ZETA_SMOOTHREG
1310      - seaice_preconditioner:
1311        + replace one remaining press by pressLoc (mistake)
1312        + adjust printing of residuals
1313      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
1314        + add (SEAICE.h) and rename some counters (initiliased in
1315          seaice_init_fixed.F)
1316        + add _BEGIN/END_MASTER (myThid)  around print statements
1317        + print total number of iterations and failures over SEAICE_monFreq
1318          interval to STDOUT
1319      - move control over output-messages by fgmres to seaice_jfnk to save
1320        some operations
1321      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
1322        in order to make restarts with sol .ne. zero (fgmres with restarts)
1323        (seaice_jfnk.F, seaice_fgmres.F)
1324      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
1325        a serious convergence problem when open boundaries are involved
1326    o pkg/ggl90: fix computation of control volumes for the case of
1327      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
1328      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
1329    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
1330    o pkg/autodiff
1331      - Add inAdMode switch for SEAICEuseDYNAMICS:
1332        SEAICEuseDYNAMICSinAdMode
1333        (extend logic in ADAUTODIFF_INADMODE_SET)
1334    o pkg/seaice
1335      - Step 1 of merging ice-thickness distribution (ITD) code from
1336        MITgcm_contrib/torge/itd/ (author: Torge Martin)
1337        The code implements concept laid out in Thorndike et al. (1975);
1338        code is enabled via CPP flag SEAICE_ITD
1339        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
1340        code is not complete yet!!
1341      - SEAICE_SIZE.h now included in almost all seaice routines
1342    o verification (using seaice):
1343      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
1344        global_ocean.cs32x15.seaice ; update results.
1345      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
1346      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
1347        offline_exf_seaice (previously compiling B-grid).
1348    o pkg/exf:
1349      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
1350        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
1351        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
1352    o pkg/layers (adjust changes from Sept 19):
1353      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
1354        this allows to remove "layers_maxNum" dimension from all layers arrays.
1355    o pkg/layers (adjust changes from Sept 19):
1356      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
1357      - snap-shot extended to all type of layers (not just the 1rst type);
1358      - remove layers variables when corresponding CPP option is undef.
1359    o pkg/layers:
1360      - rename pkg/layers variable and add new output (layer exist & un-weighted
1361        velocity in layer)
1362    o pkg/seaice:
1363      - simplify (?) ocean-drag coefficent computations by using
1364        the same routine in all three solvers (saves some code lines)
1365      - remove global fields DRAGA and DRAGS from C-grid code and
1366        declare them locally in lsr.F (the only place where they are
1367        still used)
1368      - update AD output of lab_sea.evp (very sensitive anyway).
1369    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
1370      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
1371      and SEAICEuseJFNK=.true. A few things to note:
1372      - involves a FGMRES, that is parallel but very inefficient,
1373        because of many scalar products (global sums) in the Gram-Schmidt
1374        orthogonalization method. Needs to be replaced. Original code
1375        from J.-F. Lemieux
1376      - preconditioner for FGMRES is a stripped down version of LSOR
1377      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
1378        preconditioner. For the preconditioner, the default is set to 10.
1379      - Jacobian times vector is computed with finite differences
1380      - marginally related to JFNK-solver: add a smooth regularization for
1381        zeta with tanh that will improve convergence (Lemieux and Tremblay,
1382        2009) for any implicit solver (not implemented for EVP because EVP
1383        does not need this regularization in the first place). Define
1384        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
1385    o eesupp/src:
1386      - check in genmake2 that intrinsic S/R flush is available.
1387      - add S/R to flush IO unit (if intrinsic S/R flush is available)
1388      - flush standard & error msg unit before MPI termination
1389      - if debugMode, flush IO unit after printing msg
1390    o pkg/ctrl:
1391      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
1392        to ctrl_set_unpack_xyz.
1393    
1394    checkpoint64 (2012/10/09)
1395    o pkg/shelfice
1396      - in mom_fluxform.F, mom_vecinv.F:
1397        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
1398        Bug fix KappaRU -> KappaRV
1399        does not change verification/isomip but may change other setups
1400        (presumably constant KappaRU=KappaRV)
1401      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
1402    o pkg/obcs:
1403      - fixed some indexing bugs in obcs_seaice_sponge.F
1404      - added obcs relaxation subroutines for HSALT and HSNOW
1405      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
1406  o pkg/seaice:  o pkg/seaice:
1407    - add "multicategory" parameterization for snow in analogy to ice,    - add "multicategory" parameterization for snow in analogy to ice,
1408      default is off for now.      default is off for now.

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