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revision 1.1736 by jmc, Wed Sep 12 22:38:05 2012 UTC revision 1.2007 by mlosch, Tue Jun 10 07:18:05 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/seaice_reg_ridge.F:
8      - modify the regularization of very small volumes of ice; only check
9        total volume HEFF, and do not apply correction to individual ice
10        classes because that leads to funny patterns in the heat and fw-fluxes
11        into the ocean. Adjust seaice_itd/results/output.txt
12      - replace nITD by SEAICE_multDim in loop-ranges
13    o pkg/exf:
14      - add code to process the case field period = -12. with UV interpolation.
15      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
16        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
17    o verification/global_with_exf:
18      - swith all fields period to -12. (was previously untested) in input/data.exf
19        (but keep secondary test ".yearly" unchanged); update the reference output.
20    o pkg/cal:
21      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
22    o pkg/exf:
23      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
24        to replace logical switch "exf_verbose"
25      - report in STDOUT when loading a new reccord (if exf_debugLev >= 3)
26    o pkg/sbo:
27      - update from Katherine Quinn: evaluate mass directly from density and SSH
28        (budget using Finite Volume method) instead of from bottom pressure.
29      - allow testreport to collect few selected SBO output ; tested in exp.
30        global_ocean.90x40x15 (after updating the results, to include SBO output).
31      - fix some multi-threading issues (in output part).
32    o model/src & most packages:
33      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
34      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
35        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
36        "data.{pkg}" exist ; and leave the S/R (return) just after.
37      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
38        + call LAND_READPARMS from packages_readparms.F
39    o pkg/seaice:
40      - remove code that resets useThSice in S/R seaice_readparms and
41        replace it by a warning in S/R seaice_check
42      - remove parameter MULTDIM, replace with nITD and runtime
43        parameter SEAICE_multDim (still hard-wired to nITD if
44        SEAICE_ITD is defined)
45    
46    checkpoint64x (2014/05/24)
47    o verification/lab_sea:
48      - update adjoint and TLM output following changes to pkg/salt_plume
49      - un-do the update after putting back local recip_Cp in few places.
50    o pkg/salt_plume: modifications by An Nguyen:
51      - add capability to do brine rejection (salt-plume) as function of
52        volume+tracers (instead of only salinity tracer).
53      - conserve volume by exchanging volume from each kLev to above to
54        accommodate in-coming brine volume
55      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
56      - switch KPP surf buoyancy due to brine forcing to 3-d
57        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
58      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
59      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
60        in East/West Arctic.
61    o pkg/sbo:
62      - incorporate modifications from Katherine Quinn to enable the use of sbo
63        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
64        output for future testreport verification (unfinished).
65    o pkg/atm_phys:
66      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
67        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
68        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
69    o pkg/seaice
70      seaice_calc_ice_strength.F: modify expression to avoid divisions
71        (affects truncation)
72      seaice_do_ridging.F: clean up the insectarium
73      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
74      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
75      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
76      - add some debugging information and error messages (warnings)
77    o model/src: modifications relatd to atmosphere p*:
78      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
79      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
80        of vertical profile tRef in geopotential background and anomaly.
81      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
82        and pkg/atm_phys.
83      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
84        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
85    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
86    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
87        not used right now, but can be used in BGC packages to fix conservation.
88    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
89        other packages too.
90    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
91        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
92    o model/src:
93      - since we have several heat capacity (even in model/src), define "recip_Cp"
94        as local variable (no longer in common block) to avoid any confusion.
95      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
96    o pkg/exf:
97      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
98        air density as function of air Temp, Humidity and atm pressure.
99    
100    checkpoint64w (2014/05/02)
101    o verification:
102      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
103        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
104        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
105        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
106        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
107    o model/src: for atmosphere in p* coords:
108      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
109      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
110        but not yet activated.
111    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
112      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
113      - this changes the results (but not for any verification experiment, because
114        none tests this), but avoids having an extra field in the restart files
115    o pkg/seaice: remove global variable TICE (not needed)
116      - replace by TICES or local variable where necessary (cost_seaice_test,
117        seaice_diagnostics_state)
118      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
119      - use specific read/write routines for reading and writing individual leves
120        of a multilevel field
121    o pkg/ctrl & model/inc:
122      - move additional anomaly fields of control vars (related to options:
123         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
124        from DYNVARS.h into new header file: CTRL_FIELDS.h
125    o pkg/seaice: some small modifications to the ridging code
126      - make fw2ObyRidge a global variable and add the freshwater flux to
127        seaice_growth
128      - pass actual thickness from seaice_prepare_ridging, so that it is
129        computed only in one place and compute it in the same way as in
130        seaice_growth
131      - initialise more fields in seaice_do_ridging that where cause floating
132        point exceptions over land
133    o pkg/seaice: preparations for ridging code and first real ridging code
134      - move most of "PART 1" of S/R seaice_growth into a new and separate
135        S/R seaice_reg_ridge that will both regularize the state variable after
136        advection call the actual ridging routine;
137      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
138        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
139      - remove ridging code from seaice_advdiff
140      - clean up remaining part 1 of seaice_growth in an attempt to make it
141        more readable (this is probably subjective)
142      - call seaice_itd_redist once in the initialisation phase to have the initial
143        conditions in the correct category
144      - finally: add new ridging routine for ITD code
145    
146    checkpoint64v (2014/04/11)
147    o pkg/ecco:
148      - add runtime parameters mdt[start,end]date[1,2]
149      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
150    o pkg/seaice:
151      - make deltaC a global variable, so that it can be used in ridging code
152      - first step towards ridging: introduce new routines that compute
153        ice strength based on ridging parameters
154      - add diagnostic for HSNOWITD
155      - add opnWtrFrac as a global variable (required for ridging scheme)
156    o pkg/salt_plume + pkg/seaice/seaice_growth.F
157      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
158        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
159    o verification/hs94.1x64x5:
160      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
161      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
162    o autodiff:
163      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
164        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
165        For now, only in pkgs used in verification/hs94.1x64x5.
166      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
167        which are specific to TAF/TAMC).
168      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
169        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
170        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
171      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
172        building mitgcmuv_ad (make adAll).
173    o pkg/ecco:
174      - cost_gencost_seaicev4.F:
175         reformulate proxy cost as function of sst and local param SEAICE_freeze
176         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
177      - add stop statement if old names siv4-[sst,vol] are used
178      - add snapshots + cost reports for atmospheric longwave
179      - remove factor 0.1 in front of wtau[u,v]
180      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
181         ALLOW_TMI_SST_COST_CONTRIBUTION
182    o pkg/atm_phys:
183      - add some diagnostics for Short-wave and for convection S/R.
184    o pkg/seaice/seaice_growth:
185      - fix a bug in the lateral melt parameterization for SEAICE_ITD
186        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
187      - rearrange loop order for better vector code in the same code block
188      - rewrite the floeDiameter formula to have fewer divisions
189      -  (miraculously) none of this changes the results of seaice_itd
190    o pkg/smooth:
191      - move param smooth2Ddiffnbt to pkg/ecco
192    o pkg/salt_plume:
193      - salt_plume_frac.F:
194         clean up local param names
195         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
196    o pkg/rw:
197      - add RS version of S/R READ_MFLDS_LEV.
198    o pkg/streamice:
199      - fix the restart test by writing/reading pickup_streamice files.
200    o pkg/seaice:
201      - refine checks for jfnk-related parameters
202      - comment out if statement with SEAICEuseIMEX parameter as long as there
203        is no IMEX code to avoid confusion and surprises
204    
205    checkpoint64u (2014/03/07)
206    o verification/MLAdjust:
207      - rename secondary test suffix:
208         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
209         0.leithD -> AhFlxF  + switch to flux-form
210         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
211         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
212    o pkg/mom_vecinv:
213      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
214        to be before mom_calc_visc.F)
215      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
216      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
217        this is simpler for the adjoint and for diagnostics.
218    o model/src + pkg/momentum:
219      - add input files for  2-D additional Western and Southern cell-edge wall
220         (e.g., to add "thin-wall" where it is =1).
221      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
222        using 2nd hFacZ that is computed from initial (fix domain) hFac
223      - known limitations of thin wall implementation: not yet coded for sigma
224        coords; not working with CD-scheme neither.
225    o pkg/seaice:
226      - rename recently introduced parameters from (wrong name) AB to
227        BDF (backward difference time discretisation)
228      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
229    o tools/adjoint_options:
230      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
231    
232    checkpoint64t (2014/02/01)
233    o pkg/ecco
234      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
235        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
236      - replace hard-coded record number and period which only work for monthly
237        with read-in runtime param that works for other periods (month,day,year)
238    o pkg/thsice
239      - corrected store directive fixes thsice adjoint gradient checks
240    o genmake2 & testreport:
241      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
242        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
243        Update testreport accordingly. No need to set "export OPENAD=true"
244        in adjoint_options/adjoint_oad anymore (will be removed later).
245    o pkg/shelfice:
246      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
247        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
248        so that surface forcing applies to k=kSurf if using pkg/shelfice.
249    o pkg/ctrl, pkg/grdchk, pkg/ecco:
250      - Changes to make GENARR more modular (i.e. invisible if not used)
251    o model/src/temp_integrate.F and salt_integrate.F
252      - re-include store directives that were removed on Dec 27th.
253    o model/src/external_forcing_surf.F
254      - add storage directives for EmPmR and PmEpR to avoid recomputation of
255        seaice_model in the adjoint that is problematic when seaice_model is
256        turned off in the adjoint. The resolved issue dated back to July when
257        EXTERNAL_FORCING_SURF call was moved.
258        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
259    o pkg/exf/exf_check.F
260      - fix a small bug again (originally found by Wentao Liu, now found again)
261      - streamline error output
262    o pkg/streamice and aim_v23:
263      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
264        Apple's /usr/bin/cpp knows what to do:
265        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
266        Target: x86_64-apple-darwin13.0.0
267    
268    checkpoint64s (2014/01/05)
269    o tools/adjoint_options:
270      - switch to fastopt.net TAF server (instead of default fastopt.de) for
271        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
272    o model/src:
273      - remove some unnecessary TAF storage directives in forward_step.F and
274        in dynamics.F (note: not always removed by TAF, e.g., double storage
275        of kappaRU,kappaRV in former version of dynamics.F).
276    o model/src & pkg/ptracers:
277      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
278        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
279        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
280      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
281      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
282      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
283    o useSingleCpuInput separates single-CPU input from single-CPU output;
284        for now only implemented for in exf_interp_read.F
285    o verification/advect_xy:
286      - fix missing EXCH call in local version of ini_salt.F and update output.
287    o momentum diagnostics:
288      - fix which deltaT is used in Total-Tendency diagnostics.
289      - fix typo in diagnostics for momentum tendency from AB.
290    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
291        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
292    
293    checkpoint64r (2013/12/08)
294    o verification/*/results:
295      - Update reference output of experiments that were passing with just 13 digits
296         (make it easier to detect future changes in results)
297    o model/src & pkg/ptracers:
298      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
299        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
300        to inside ptracers_integrate.F ; remove ptracers_advection.F
301    o coupling interface pkgs:
302        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
303      - change the config check to test the agreement of Ocean Depth
304        with ATM land/sea mask (instead of ATM orography);
305      - send to coupler the number of coupler time-steps to do for this run:
306        this allows to check for consistency and don't need anymore to be
307        specified in parameter file "data";
308      in coupler:
309      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
310      - improve report to log-file of config setting (pass log-file unit to few S/R)
311    o pkg/compon_communic:
312      - add coupling send/receive for non-tiled integer vector;
313      - add S/R to check and stop if any proc has an error (similar to
314        eesupp/src/stop_if_error.F but single thread and across Comm_World).
315    o pkg/exch2:
316      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
317        through list of all tiles my proc owns.
318    o model/src:
319      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
320        from rTrans) to simplify dependencies (no need to store rTrans anymore in
321        calling S/R); this affects AD results at machine truncation level:
322        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
323        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
324    o tools/build_options:
325      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
326    o coupling interface pkgs:
327        [compon_communic, atm_compon_interf & ocn_compon_interf]
328      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
329        to each S/R that needs it; remove un-used variables.
330      - change component tile registration (cpl_register.F in both compon_interf
331        and mitcomponent_tile_register.F) to pass the full list of tiles
332        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
333      - with pkg/exch2: adopt the same convention used for I/O to define mapping
334        towards coupler global array (unless W2_useE2ioLayOut=F):
335         a) can now use different tiling between atm & ocn comp.
336         b) no needs to modify the run-Off map when changing tiling (was needed
337            even if using the same tiling between atm & ocn).
338         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
339            full land tiles); not yet tested.
340      - check for valid mapping from comp. tile to coupler global array
341      - improve report of tile registration results to log file.
342    o pkg/exch2:
343      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
344        tile-registration (CPL_REGISTER);
345      - activate (un-comment) definition and setting of "W2_tileIndex" list to
346        store the local bi,bj indices of each tile;
347      - also print bi,bj in local report to log file;
348      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
349        Jun 2009 modif of pkg/exch2).
350    o testing on baudelaire:
351      - run 2 tests at a time: no significant slow down (since enough cpu) and
352        get the full set of test done earlier
353      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
354    o model/src/thermodynamics.F and routines called from it:
355      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
356        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
357        velocity (outp) by adding bolus velocity.
358      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
359        mass transport from velocity + lateral grid cell area
360      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
361      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
362     in thermodynamics.F
363      - remove k from thermodynamics.F and move it to temp_integrate.F
364        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
365        loop).
366      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
367        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
368        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
369        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
370      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
371        global_ocean.90x40x15, tutorial_global_oce_biogeo and
372        tutorial_tracer_adjsens (+ TLM output).
373    o tools/OAD_support and (verification/*/) code_oad:
374      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
375        module conversion ; remove unneeded CPP_EEOPTIONS.h.
376      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
377        version (closer to model/inc/CPP_OPTIONS.h).
378    o model/src:
379      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
380        retired list of parameters (routine FREEZE has been replace by surface
381        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
382    o pkg/gmredi:
383      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
384        velocity (same scheme but affects machine truncation) for GM_AdvForm.
385      - update output of FWD experiments: front_relax.bvp,
386        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
387    
388    checkpoint64q (2013/11/17)
389    o verification:
390      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
391        tutorial_global_oce_biogeo and global_ocean.90x40x15.
392      - generate new output (growth & melt) for seaice_itd experiment after
393        updating the input pickup_seaice files (previously wrong).
394    o pkg/cost:
395      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
396        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
397        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
398          cannot be applied to var in common block).
399        o allows to get results independent of tile-per-proc setting (if using
400          slower GLOBAL_SUM_SEND_RECV option).
401      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
402        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
403        forward gradients: update output).
404      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
405        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
406    o pkg/mom_common:
407      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
408        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
409        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
410        ensure that all field value that are used are set.
411    o tutorial_deep_convection (smag3d):
412      - add missing scaling in mom_calc_smag_3d.F;
413      - set smag3D_coeff in input.smag3d such that results do not change.
414    o pkg/dic:
415      - change dic_cost.F to compute cost on each tile first and then apply
416        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
417        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
418      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
419    o eesupp/src & pkg/mdsio:
420      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
421        (from pkg/mdsio) since they are no longer used for tape IO.
422      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
423        (+ keep a copy in pkg/atm_ocn_coupler).
424    o verification/isomip:
425      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
426    o tools/build_options:
427      - optfile linux_amd64_ifort11, fast (no ieee) case:
428        to get a working restart for all experiments, add "-fp-model source"
429        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
430    
431    checkpoint64p (2013/10/20)
432    o pkg/autodiff:
433      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
434        criteria, return to simple (default) tape IO format.
435    o pkg/mdsio (+ eesupp/src):
436      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
437        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
438      - fix globalFile and singleCpuIO options using simpler global mapping.
439      - new pairs of scatter/gather vector S/R (one for each type, generated from
440        template) corresponding to simpler global mapping.
441      - adread_write.F: switch to new S/R (but leave old calls commented) and write
442        to globalFile when parameter globalFiles is set to True.
443      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
444    o pkg/autodiff:
445      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
446        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
447        missing, just add a STOP if array type do not match.
448    o pkg/exf:
449      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
450         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
451         and rename array obsSIce to exf_iceFraction.
452    o tutorial_deep_convection:
453      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
454        for now all in this exp. code dir.
455      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
456        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
457    o eesupp/src:
458      - added SINGLE_DISK_IO option because reading of parameter files on
459        very large number of processors did not work with existing set-up
460    
461    checkpoint64o (2013/09/25)
462    o pkg/atm_phys & atm_compon_interf:
463      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
464    o tools/build_options:
465      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
466        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
467        remove CPP setting (was identical to genmake2 default).
468    o pkg/gmredi & model/src: Some updating and work done on the residual model.
469      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
470      - fixed up the calculation of the eddy stress and how it is added to the
471        external forcing via taueddy_external_forcing.F
472      - at the moment, it is very experimental and only works with the variable eddy
473        diffusivity calculated in gmredi_k3d.F
474    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
475        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
476    o testreport (& tools/do_tst_2+2):
477      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
478    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
479      - remove CPP='cpp -traditional -P' (this is genmake2 default)
480      - add switch (for big setups) to use 'medium' memory-model (but leave it
481        commented out for now). Note: needed with FC 19 to compile big setups.
482    o pkg/atm_compon_interf:
483      - regroup per field origin (model & pkgs) the coupling storage routines
484         (which accumalate in time each coupling field)
485      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
486        update accordingly + simplify aim_do_physics.F
487    
488    checkpoint64n (2013/08/26)
489    o pkg/bbl:
490      - update formulation to reduce dispersion of tracer properties in bbl
491      - replaced horizontal and vertical transport parameters with velocities
492      - changes results for verification/global_with_exf.yearly
493    o verification/halfpipe_streamice:
494      - change to matrix construction; update both Fwd & AD output.
495    o verification/tutorial_tracer_adjsens:
496      - OpenAD test: switch to vector-invariant momentum since fluxform with
497        rStar causes problems with OpenAD; update output.
498    o tools:
499      - genmake2: define a common prefix for all temp-file names ; move them
500        to local /tmp disk (but would be easy to move them back);
501      - xmakedepend: apply the same switch for temp-files.
502    o pkg/offline:
503      - changes for use with rStar (NLFS): assume that we continue to provide
504        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
505        output files) and apply r* scaling at each time-step (function of the time
506        varying Eta field); use normal pickup files (needed for restart with NLFS).
507    o adjoint with OpenAD:
508      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
509        package openad.  This package has to be compiled for all runs with OpenAD
510        instead of specifying code_oad_all as a modification directory.
511      - link the fortran templates from tools/OAD_support to the build directory
512        for preprocessing to avoid conflicts between different setups compiled
513        simultaneously and simplify cleanup.
514    o pkg/exf:
515      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
516        main model or other pkgs are exchanged in EXF_MAPFIELDS).
517    o model/src:
518      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
519        (similar to do_fields_blocking_exchanges.F).
520    o tools/genmake2:
521      - remove TAF output src code just before calling staf (when not doing a fresh
522        built, will stop if things go wrong with staf).
523      - fix target "adobj" (left from TAF version-2 transition)
524    o pkg/diagnostics:
525      - add a parameter to track the status of pkg/diagnostics activation;
526        this replace/extend the use of logical param "settingDiags" (to check
527        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
528        New S/R to print error message and stop when pkgStatus is not right.
529      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
530    
531    checkpoint64m (2013/08/13)
532    o model/inc:
533      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
534        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
535    o pkg/kpp & aim_v23:
536      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
537    o pkg/seaice:
538      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
539        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
540      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
541    o eesupp/src:
542      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
543        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
544    o switch to TAF version-2:
545      - add flow directives to "freeze" naming convention for ad-routines that
546        are used in I/O routines of adjoint state and associated common blocks
547        that are used in adcommon.h (backward compatible with version-1)
548      - update all ad-optfiles (in tools/adjoint_options + few local to some
549        verification exp) to switch to latest TAF version (currently 2.5.5);
550        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
551        out except for diva).
552      - the major change with TAF version-2 is that both the differentiated
553        routines and the forward routines (new) are returned as part of the TAF
554        output source code. Update genmake2 accordingly.
555      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
556        with version-2 when compared to TLM or FWD gradient); other experiments
557        output show minor changes (machine truncation level); update the few AD &
558        TLM output with 12 matching digits only (some prior to version-2 switch).
559    
560    checkpoint64l (2013/08/05)
561    o model/src:
562      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
563      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
564        when using TAF but only if using OpenAD.
565    o pkg/mom_common+fluxform+vecinv:
566      - always set horiz. viscosity arrays to background value before calling
567        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
568        only when using variable horiz. viscosity (useVariableVisc=T);
569      - simplify mom_vecinv.F (only 1 block for momViscosity).
570    o pkg/mom_common: variable horiz. viscosity in NH code
571      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
572        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
573      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
574        useBiharmonicVisc & useVariableVisc.
575      - fix old bug (already in 1rst implementation of variable horizontal viscosity
576        in calc_gw.F, version 1.27, 2006/06/20):
577        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
578        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
579      - change background horiz viscosity in vertical momentum (gW) to always be
580        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
581        any type of variable viscosity, e.g., viscAh/4Grid)
582      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
583        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
584        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
585        default viscAh,viscA4 is zero).
586    o model/src:
587      - extend length of drC & recip_drC from Nr to Nr+1.
588    o Divided Adjoint (DIVA) with MPI:
589      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
590      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
591        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
592    
593    checkpoint64k (2013/07/23)
594    o tools/OAD_support:
595      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
596        and remove it from genmake2.
597    o tools/build_options:
598      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
599        MPI_HEADER_FILES list (let genmake2 find the missing headers)
600    o verification/halfpipe_streamice:
601      - change to driving stress formulation; update both Fwd & AD output.
602    o tools/genmake2 and Divided Adjoint with MPI:
603      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
604      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
605      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
606        Makefile, which is set by genmake2, and check which mpi-headers are needed.
607        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
608      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
609    o testreport:
610      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
611        perform additional runs (number of additional runs is "add_DIVA_runs" taken
612        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
613    o verification/lab_sea (AD test):
614      - change to test Divided Adjoint Run in this set-up (both standard AD test
615        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
616    o pkg atm_ & ocn_compon_interf:
617      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
618        staggerTimeStep implementation) and disable (retired) corresponding
619        parameter.
620    o pkg/offline:
621      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
622      - add S/R OFFLINE_CHECK to print offline parameter summary
623        and stop if loading a file that is not used;
624      - enable to calculate GMRedi tensor, KPP mixing and convective index
625        when the corresponding file(s) is/are not specified (but pkg is used).
626      - comment out resetting of monitorFreq (to endTime) since it still useful
627        for monitoring CFL numbers and checking offline fields.
628    o OpenAD:
629      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
630        smaller standard output) and generate new (smaller) output (on baudelaire
631        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
632    o model/src:
633      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
634        (where external_forcing_adjust was called) and change list of arguments;
635      - merge external_forcing_adjust.F into external_forcing_surf.F
636      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
637        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
638        previously in file "balance_relax.F", now removed); remove corresponding
639        arrays in FFIELDS.h.
640      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
641        a hack for getting back surfaceForcingS (loaded from file) when using
642        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
643      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
644        (was getting only 11 digits for AD-grad, due to different truncation
645         error in AD code).
646    
647    checkpoint64j (2013/07/04)
648    o pkg/offline:
649      - to enable the use of other features with pkg offline (e.g., obcs),
650        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
651      - comment out "allowFreezing" (now active) in 2 offline testing exp.
652    o pkg/exf ALLOW_RUNOFTEMP
653      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
654      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
655      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
656    o pkg/atm_phys:
657      - allows to add some damping on uVel,vVel (strength only function of k).
658    o verification, ad-tests:
659      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
660        global_ocean_ebm and offline_exf_seaice.thsice.
661    o verification/halfpipe_streamice:
662      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
663        flux input boundary conditions to be ignored; a fix for this bug changed
664        verification results for forward test.
665      - add adjoint test.
666    o pkg/ptracers:
667      - allow to restart without SOM pickup (resetting SOM to zero).
668    o pkg/gmredi:
669      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
670      - It uses mixing length theory and suppression by steering level effects to
671        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
672        to JPO, for more details).
673      - It also uses the diffusivity to calculate an eddy induced streamfunction
674        based on a PV closure (rather than a buoyancy closure as in GM).
675      - New files added to pkg/gmredi:
676        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
677          induced overturning streamfunction (called from gmredi_calc_tensor)
678        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
679          for use in gmredi_k3d
680        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
681          the eddy diffusivity
682    
683    checkpoint64i (2013/06/18)
684    o pkg/cheapaml:
685      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
686        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
687        with pkg/cheapaml.
688    o utils/python: add subpackage for cubed sphere function, first example is
689        simple cs.pcol to plot 2D fields on a map
690    o pkg/streamice:
691      - This is a new package in MITgcm, which solves dynamic equations for ice
692         sheets and ice streams
693      - At the moment it is independent of atmosphere/ocean dynamics, or any
694        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
695        ed that this will change)
696      - There is a new verification exercise that tests it, halfpipe_streamice,
697        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
698        rectangular embayment
699      - halfpipe_streamice is forward-only for now, will have TAF test soon
700      - for questions, email dgoldber@mit.edu
701    o pkg/thsice:
702      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
703        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
704      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
705         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
706      - allow precip from pkg/cheapaml to make snow over seaice.
707    o pkg/cfc:
708      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
709      - remove atmos CFC 2-D arrays from common bloc (now local variables)
710      - change some hard-coded constant to run time parameter for reading and
711        and interpolating atmospheric CFC ; keep same default as previously.
712      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
713      - put arguments in standard order: myTime, myIter, myThid
714      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
715        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
716      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
717      - new routine to print summary of CFC params and check for consistency.
718    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
719      similar to thsice_advdiff.
720      Note that for the B-grid case the routine parameters uc/vc are overwritten.
721    o pkg/cfc:
722      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
723        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
724      - fix interpolation of atmphspheric CFC between Sorthern and Northern
725        hemisphere value.
726    o pkg/seaice:
727      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
728    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
729                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
730      - requires an additional time level that is stored in the pickup
731      - you can start with AB2 from a pickup without this time level with
732        pickupStrictlyMatch = .false.
733    
734    checkpoint64h (2013/05/26)
735    o pkg/cheapaml:
736      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
737        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
738      - consistent treatment of uWind,vWind location: assume everywhere in
739        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
740        (Note: was already the case for Tair,Qair advection);
741        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
742      - compute diabatic forcing only in the interior (excluding overlap regions)
743      - fill in array "Qsw" (for short-wave heating);
744      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
745        before any update (consistent with MITgcm state var diagnostics);
746      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
747        non periodic ; + adjusted for uWind,vWind (C-grid).
748    o pkg/seaice:
749      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
750        add explicitly pkg/exf in experiments that currently use pkg/seaice.
751      - allows to compile pkg/seaice without pkg/exf.
752    o tools/OAD_support:
753      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
754        of array "ourStepOf" in function rvNextAction (revolve.F90).
755    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
756      - change pkg name (to be used with other atmospheric physics pkg)
757        but by-pass CVS when making the new pkg so that we keep the CVS history.
758    o pkg/offline:
759      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
760        (previously called from pkg/dic_surfforcing_init.F)
761    o model/src:
762      - re-order sequence of calls within packages_init_variables.F, using
763        standard order, except for:
764         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
765         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
766    o new pkg: atm_phys
767      - add entry point and source code (previously in contrib
768          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
769        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
770      - re-order sequence of calls within packages_readparms.F,
771         packages_init_fixed.F and packages_write_pickup.F
772        (but skip packages_init_variables.F because of TAF issues).
773      - update contrib/*/atm_gray/ experiment.
774    o pkg/seaice (ITD code):
775      - simplify and fix the writing of pickup-files for ITD case
776    o pkg/seaice (ITD code):
777      - introduce floe size dependent lateral melt for ITD case;
778      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
779      - update seaice_itd experiment main output.
780    o pkg/thsice:
781      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
782        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
783        changed accordingly pkg/atm2d.
784    
785    checkpoint64g (2013/05/01)
786    o pkg/exf ALLOW_RUNOFTEMP
787      - if defined,  river and glacier runoff temperature can be read-in from
788        runoftempfile; runoftempfile needs to have same format as runofffile
789    o pkg/thsice (& pkg/bulk_force):
790      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
791        for energy content of Precip + RunOff & Evap (like with pkg/exf).
792      - change computation domain to always be the interior (without overlap).
793      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
794    o verification/tutorial_global_oce_biogeo:
795      - add preliminary OpenAD setup (still has problems)
796    o pkg/seaice:
797      - turn some parameters for choosing the convergence criterion of
798        the inexact Newton method (JFNK) into runtime parameters for convenience
799      - clean up seaice_calc_viscosities.F: remove/retire two options for
800        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
801        the results of lab_sea/input because a division has been replaced by
802        a multiplication with the reciprocal (sumNorm)
803      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
804        convergence of solver (changes results, of course), and to test some
805        new features
806    o model/src:
807      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
808      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
809      - move forcing adjustment (balancing surface forcing) in specific S/R
810        where might also be applied exchanges (if needed) to forcing arrays.
811    o pkg/shelfice:
812      - allow to specify the Ice-Shelf mass per unit area (instead of
813        shelficeLoadAnomaly) and do the conversion from one to the other
814      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
815        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
816        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
817        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
818      - update isomip experiment forward output (get machine truncation error
819        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
820    o verification/offline_exf_seaice:
821      revise data.seaice in input.thermo and input_ad and update results accordingly
822        HO = 0.2, SEAICE_areaLossFormula = 2,
823        SEAICE_growMeltByConv = .TRUE.,
824        SEAICE_doOpenWaterMelt = .TRUE.,
825      Improve consistency with input.thsice and fix the spurious 500m ice corners
826    o verification/global_ocean.cs32x15:
827      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
828        in icedyn (thsice+seaice-dyn) test and update output.
829    o verification/offline_exf_seaice:
830      - adjust list of tested variables (with testreport) and update
831        standard test output with better slection of monitored fields.
832    o pkg/cd_code:
833      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
834        experiment lab_sea.hb87
835    o tools/genmake2:
836      - change default makedepend from the system default to tools/xmakedepend:
837        When no makedepend is specified, select tools/xmakedepend it the test pass,
838        otherwise select the system default (if exist and pass the test) or
839        try to build cyrus-makedepend ; stop if none of the 3 works.
840    o pkg/exf & pkg/thsice:
841      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
842        for energy content of Precip + RunOff & Evap. Assumes:
843       1) Rain has same temp as Air.
844       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
845       3) Run-Off comes at the temp of surface water (with same Cp)
846       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
847        put directly into Latent Heat flux & should use water-vapor heat capacity.
848       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
849        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
850    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
851        (compile when SEAICE_ALLOW_JFNK is defined)
852    o pkg/thsice:
853      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
854        implementation): move THSICE_AVE call after the advection (called directly
855        from thsice_do_advect.F).
856    o verification/global_ocean.90x40x15 and OpenAD:
857      New experiment for OpenAD is identical to the one in input_ad except that
858        multiDimAdvection=.FALSE.,
859      There is still an issue with this.
860    o pkg/thsice:
861      - account for ice velocity (ocean relative velocity) in turbulent heat flux
862        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
863        and offline_exf_seaice (main test).
864    
865    checkpoint64f (2013/03/31)
866    o verification/OpenAD:
867      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
868    o verification/isomip, pkg/shelfice and OpenAD:
869      - add OpenAD setup to this exp and make shelfice package work with OpenAD
870    o verification/tutorial_global_oce_biogeo:
871      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
872    o verification/offline_exf_seaice:
873      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
874    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
875      - add OpenAD setup to this exp and make ptracers package work with OpenAD
876    o pkg/seaice/seaice_evp.F:
877       mask the asymmetric contribution of the ice-ocean stress (when
878       the turningAngle is non-zero) over open water to avoid stripes
879       in the EVP-solutions after many EVP-substeps. This does not change
880       the verification experiment (because turningAngle=0 in that experiment),
881       but will affect other EVP solutions with turningAngle.ne.0
882    o verification, AD & TLM output:
883      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
884        additions and multiplications which affect results at machine truncation
885        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
886        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
887        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
888        digits of matching.
889    o pkg/seaice:
890       modify lsr-algorithm so that it vectorizes AND converges by using a
891       "zebra" method: split vector loop into two with step size 2; this
892       solves a general convergence problem for the JFNK solver on a vector
893       computer. It has the potential to even improve convergence for
894       non-vector machines, but it does change the results so it is turned
895       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
896       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
897    
898    checkpoint64e (2013/03/05)
899    o pkg/ecco and several verification experiments:
900       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
901       from ecco package, and revert to unified routine in model/src/
902       Adjust verification experiments accordingly, especially gloal_oce_llc90
903       Should conclude long-standing work by Gael to reconsile the_main_loop with
904       ECCO and will enable OpenAD's revolve loop in ECCO setup.
905    o pkg/generic_advdiff:
906      - implement compressible flow method for multi-dim advection (similar to
907        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
908        TAF generates many recomputations) to use it; no yet coded with implicit
909        vertical advection.
910      - change experiment advect_cs (new output) and advect_xy (same output)
911        to test compressible flow multi-dim advection.
912    o pkg/generic_advdiff:
913      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
914        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
915    o pkg/seaice:
916      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
917        bug affects two verification experiments (lab_sea and lab_sea.hb87),
918        recover old (wrong) results by setting noSlipFac = 2. in
919        seaice_calc_strainrates.F;
920      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
921      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
922        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
923      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
924    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
925      - new subroutines seaice_lsr_tridiagu/v
926      - introduce loop bounds i/jmin/max to be able to use a restricted
927        additive Schwarz method, but not used for now.
928      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
929      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
930    o OpenAD support
931       Reorganize S/R call for overall time-stepping loop to facilitate
932       OpenAD revolve loop replacement
933       (new S/R main_do_loop.F)
934    o model/src:
935      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
936      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
937        ADAMS_BASHFORTH2.
938    o pkg/cheapaml:
939      - add new parameter (default=F, same as before) to disable full domain
940        (including land) periodicity in X & Y dir.
941      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
942        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
943        into single S/R CHEAPAML_TIMESTEP.
944    
945    checkpoint64d (2013/02/17)
946    o pkg/monitor (angular momentum):
947      - do not add Eta contribution to the total AM if using rigid-lid;
948      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
949      - horizontal discretisation: compute Zonal wind contribution separately for
950        each component (instead of from cell centered averaged) and use the 4
951        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
952      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
953        FreeSurf) if using vectorInvariant momentum.
954    o model/src (horizontal grid):
955      - move initialisation of all horizontal grid arrays to null value
956        from specific horizontal grid S/R to main S/R INI_GRID;
957      - add 2 new arrays to project model C-grid velocity on to zonal direction
958        (similar to AngleCosC & -AngleSinC but at U and V point location) and
959        compute them in S/R CALC_GRID_ANGLES.
960    o pkg/seaice: replace a hard coded parameter by a runtime parameter
961        SEAICE_JFNK_tolIter
962    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
963        preconditioner for JFNK (run LSR into the overlaps as far as possible,
964        i.e OLx/y-2, but overwrite the solution in the overlaps)
965      - extend loop range in seaice_calc_viscosity
966      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
967      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
968      - slightly modify loops in tridiagonal solver lsr-preconditioner
969      - by default remove the extra exchange in seaice_preconditioner with a
970        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
971      - modify offline_exf_seaice so that old results without RAS are reproduced
972        for output.dyn_jfnk.txt
973      in seaice_fgmres.F (unrelated to RAS)
974      - add a cpp-flag option for a re-ordered mapping (potentially more
975        efficient), but because this changes the results, turn it off by
976        default
977      - replace the save statement by local common blocks
978    o utils/matlab:
979      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
980      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
981        instead of local script "load_cs.m".
982    o pkg/seaice:
983      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
984        to the scalarProductMetric and the unrolling. By chance this does not
985        change the verification experiment, because of the particular domain
986        decomposition
987    o pkg/diagnostics:
988      - change default missing_value from UNSET_RL to -999.
989    o pkg/layers: improve vectorization of layers_fluxcalc.F
990      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
991        time spent in this routine by more than a factor of 3 on an NEC-SX8
992      - step 2: replace search algorithm by a bisection algorithm found in
993        Press et al. Numerical Recipes in Fortran. This algorithm can be
994        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
995        For now, use this algorithm only for TARGET_NEC_SX defined.
996      - moved the search algorithm into a separate subroutine, that is kept
997        within the same file for automatic inlining.
998      - modified catching potential errors
999    o pkg/ecco:
1000      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
1001    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
1002      - modifications for ALLOW_GENTIM2D_CONTROL
1003      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
1004      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
1005      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
1006      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
1007    o model/src:
1008      - account for moist thermodynamics in (dry) potential temperature equation;
1009        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
1010        and cpl_aim+ocn.
1011      - also switch to standard compiler (gfortran, was using ifort previously)
1012        for fizhi-cs experiments reference output.
1013    o pkg/ctrl:
1014      - 1st step toward generic time-varying control variable (2D) via CPP option
1015        ALLOW_GENTIM2D_CONTROL
1016      - note new namelist ctrl_nml_genarr in data.ctrl
1017    o verification/global_ocean.cs32x15:
1018      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
1019        thsice calling sequence and update "output.icedyn.txt" output file.
1020    o pkg/ptracers:
1021      - from Ryan A.: code to allow to restart a tracer at regular time interval
1022        specifying a reset frequency and a reset-phase (for each tracers).
1023    o pkg/thsice:
1024      - implement new sequence of calls for thsice+seaice:
1025          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
1026          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1027      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1028        in CPP_OPTIONS.h) to recover old sequence;
1029      - update diagnostics for Intermediate State thsice diagnostics: now filled
1030        just before advection (instead of just after advection in old sequence);
1031      - update output of experiment offline_exf_seaice (standard test);
1032      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1033        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1034    o pkg/aim_v23:
1035      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1036      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1037      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1038      - Implement new sequence of calls for seaice advection (with thsice and
1039        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1040        was done before); change aim_do_physics.F (split the bi,bj loops block);
1041      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1042    o pkg/thsice:
1043      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1044        where just seaice diffusion is used without seaice-dynamics.
1045    
1046    checkpoint64c (2013/01/18)
1047    o pkg/seaice:
1048      - add a parameter JFNKres_tFac that can replace JFNKres_t
1049        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1050      - add a line search option to the JFNK solver
1051      - move update of u/vIce and computation of initial residual into a separate
1052        routine (same file); makes the code a little easier to read (?)
1053      - the line search requires computation of the residual and for some reason
1054        I cannot do the update of u/vIce at the beginning of the Newton loop
1055        without changing the results, so we move computation of the new residual
1056        also to the end of the Newton loop, even without the line search
1057    o pkg/mdsio:
1058      - write missing value (corresponding to undefined array value) to meta files;
1059        skip this if missing value is one (UNSET_RL would be a better value for the
1060        case of undefined missing value but it's current the default missing-value);
1061        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1062    o pkg/exf & thsice:
1063      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1064        diagnostics) even when SHORTWAVE_HEATING is #undef;
1065    o verification/cfc_example:
1066      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1067        illustrate how to use it).
1068    o verification/offline_exf_seaice:
1069      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
1070        files to only one time-record.
1071      in input.thermo: narrow the 2 bands of low initial ice-concentration near
1072        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
1073        snapshot output; same mcPheePiston value as in thsice with
1074        surf-current=0.2m/s.
1075      in input.thsice: similar set-up as in input.thermo (channel with same seaice
1076        initial conditions).
1077    o verification/cfc_example:
1078      - update file "data" with more standard choice (default rotationPeriod,
1079        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
1080        set deltaTFreeSurf to deltaTtracer) and update the output.
1081    o pkg/layers:
1082      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
1083      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
1084    o verification/offline_exf_seaice:
1085      - set all {field}period to zero for constant-in-time forcing (not tested
1086        anywhere else).
1087    o verification/offline_exf_seaice:
1088      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
1089      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
1090    o model/src:
1091      - implement Finite-Volume method for (hydrostatic) presure gradient
1092        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
1093    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
1094      - In order to be compatible with the default EVP code, this requires changing
1095        the EVP code around a little; and because any small change immediately
1096        breaks the lab_sea.hb87 verification experiment, the reference output is
1097        updated two times (each time the remaining aggrement was only 2 digits):
1098        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
1099        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
1100        The adjoint test lab_sea.evp also needed to be updated.
1101      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
1102        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
1103        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
1104        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
1105        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
1106        kept obscure, because I need to test it a little more.
1107    o pkg/cheapaml:
1108      - fix few incorrect type (_RL/_RS) in subroutine calls.
1109    o pkg/seaice:
1110      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
1111        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
1112    o model/src:
1113      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
1114        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
1115        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
1116    o pkg/cheapaml:
1117      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
1118        update output of experiment cheapAML_box.
1119      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
1120        and set them only in one place (cheapaml_readparms.F).
1121      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
1122      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
1123        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
1124    o model/src/the_main_loop.F:
1125      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
1126    o pkg/seaice:
1127      - remove legacy branch code.
1128      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
1129    o verification/*/code*/SEAICE_OPTIONS.h:
1130      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
1131        SEAICE_CAP_HEFF).
1132    o pkg/cheapaml:
1133      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
1134        to load new forcing fields.
1135      - add missing "_d 0" where it's needed; + some editing (improve indentation).
1136      - remove switch to "-r8" compiler option (no longer needed) in verification
1137        cheapAML_box, keep same output (small trucation error differences).
1138    o verification/offline_exf_seaice:
1139      - add thermodynamics only test.
1140    o verification/cheapAML_box:
1141      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
1142        keep same output (same 14 digits for cg2d).
1143      - switch on "-r8" compiler option (some numerical values are missing
1144        the "_d 0") and update output (only 6 digits for cg2d were preserved).
1145    
1146    checkpoint64b (2012/12/24)
1147    o pkg/cheapaml:
1148      - remove un-used variables (Qnet,EmPmR) from pickup files.
1149      - store tendency of advected variables into cheapaml pickup file
1150        and fix the AB-2 restart.
1151    o verification/offline_exf_seaice and lab_sea adjoint:
1152      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
1153      - switch to 4 time steps in offline, consistent with lab_sea.
1154      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
1155      - update results after change of experiment seaice.
1156    o pkg/seaice:
1157      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
1158        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
1159        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
1160        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
1161    o model/src:
1162      - add run-time parameter to select CG2D solver minimum-residual solution
1163        (in case of a poor convergence).
1164    o pkg/seaice/seaice_lsr.F
1165      - move calculation of matrix coefficients into new
1166        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
1167        file; the main purpose of this change is to be able to reuse the code
1168        in S/R SEAICE_PRECONDITIONER
1169      - modify the computation of the residual so that the mass of sea-ice
1170        is not used twice; this simplifies the calculations, but since
1171        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
1172        not tested in testreport---this does not affect the testreport results.
1173    o verification/seaice_obcs:
1174      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
1175        verification/lab_sea/input.salt_plume; changes results/output.txt*
1176    o model/src:
1177      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
1178    o pkg/seaice:
1179      - improve description of parameters in seaice_fgmres.F and start
1180        cleaning up the code
1181      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
1182        second argument
1183      - add a metric based on grid cell area to SEAICE_SCALPROD; update
1184        results of offline_exf_seaice.dyn_jfnk
1185      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
1186    o pkg/aim_v23:
1187      - fix an other bug in dissipation heating (grid-cell area was missing).
1188    o model/src + pkg/seaice:
1189      - add global (multi-tile) linear solver for pair of tri-diagonal system
1190        along X and Y lines, respectively for U and V component.
1191        Note: 1) MPI and cube-exchange not yet coded.
1192            2) probably not accurate for poorly conditioned / large size problem.
1193      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
1194        default: not compiled and not used.
1195    o pkg/seaice:
1196      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
1197        introduce bi/bj loops and use global_sum_tile_rl instead of
1198        mpi_allreduce in seaice_fgmres.F
1199      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
1200      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
1201      - add a verification experiment for JFNK in offline_exf_seaice
1202    o verification:
1203      - change (for now, only fwd test) offline_exf_seaice experiment:
1204        use a re-entrant channel with idealized coastline (trapezoidal shape)
1205        at southern boundary to explore seaice dynamics and thermodynamics
1206        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
1207        secondary test (input.thsice) use thermodynamics only with SST relaxation.
1208      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
1209    o pkg/exf:
1210      - disable "sstExtrapol" when Nr=1
1211    o verification:
1212      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
1213        to test pkg/cheapaml.
1214    o pkg/aim_v23 & pkg/shap_filt:
1215      - fix dissipation heating (erroneous gravity multiplication factor).
1216    o pkg/seaice:
1217      - remove unused field pressPre from jfnk solver
1218      - rename two subroutines in seaice_preconditioner.F
1219    o eesupp/src:
1220       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
1221    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
1222       - remove wrong parts of the rhs and the lhs (were in there
1223         because I did not understand the concept of this preconditioner)
1224       - add an exchange between u- and v-sweep. This increases communication
1225         by a factor of two but improves the convergence of jfnk. Ideally,
1226         one would like the u- and v-sweep to be independent. So far within
1227         undocumented ifdefs
1228       - reorganize the extra computations for printing the residuals
1229    o tools/genmake2:
1230      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
1231        since it's not necessary (and was preventing to use MNC in some cases).
1232    
1233    checkpoint64a (2012/11/16)
1234    o pkg/autodiff:
1235      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
1236        autodiff_readparms.F no longer depends on calling order (within
1237        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
1238        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
1239        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
1240    o pkg/obcs:
1241      - adding tidal velocity forcing capability to obcs
1242        for usage example, see verification/seaice_obcs/input.tides
1243    o pkg/seaice:
1244      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
1245        SEAICE_LSRrelaxU/V
1246      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
1247    o pkg/aim_v23:
1248      - implement heating from friction (bottom friction and stratospheric drag).
1249    o pkg/shap_filt:
1250      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
1251        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
1252    o model/src:
1253      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
1254        time-constant addMass field from file (addMassFile);
1255      - support for heating due to friction (and Kinetic Energy dissipation):
1256        add option, run-time switch and 3-D field array + support code ; each pkg
1257        or S/R can add heating contribution (if there is a sink of KE); the sum is
1258        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
1259    o pkg/seaice:
1260      - complete merge of ITD code into seaice_growth.F
1261        from MITgcm_contrib/torge/itd/code/
1262        no verification so far, but Torge Martin tested
1263        "1-D test case and Beaufort set up;
1264        deliver okay results after 1 model year."
1265      - complete merge of SEAICE_SIZE.h into all relevant routines
1266      - move computation of eta at Z-points into calc_viscosities
1267        + introduce global field etaZ
1268        + add different methods for computing etaZ, for now the old
1269          method (simple averages of eta to Z-points) is hardwired
1270        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
1271          seaice_preconditioner
1272      - simplify computations for SEAICE_ZETA_SMOOTHREG
1273      - seaice_preconditioner:
1274        + replace one remaining press by pressLoc (mistake)
1275        + adjust printing of residuals
1276      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
1277        + add (SEAICE.h) and rename some counters (initiliased in
1278          seaice_init_fixed.F)
1279        + add _BEGIN/END_MASTER (myThid)  around print statements
1280        + print total number of iterations and failures over SEAICE_monFreq
1281          interval to STDOUT
1282      - move control over output-messages by fgmres to seaice_jfnk to save
1283        some operations
1284      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
1285        in order to make restarts with sol .ne. zero (fgmres with restarts)
1286        (seaice_jfnk.F, seaice_fgmres.F)
1287      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
1288        a serious convergence problem when open boundaries are involved
1289    o pkg/ggl90: fix computation of control volumes for the case of
1290      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
1291      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
1292    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
1293    o pkg/autodiff
1294      - Add inAdMode switch for SEAICEuseDYNAMICS:
1295        SEAICEuseDYNAMICSinAdMode
1296        (extend logic in ADAUTODIFF_INADMODE_SET)
1297    o pkg/seaice
1298      - Step 1 of merging ice-thickness distribution (ITD) code from
1299        MITgcm_contrib/torge/itd/ (author: Torge Martin)
1300        The code implements concept laid out in Thorndike et al. (1975);
1301        code is enabled via CPP flag SEAICE_ITD
1302        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
1303        code is not complete yet!!
1304      - SEAICE_SIZE.h now included in almost all seaice routines
1305    o verification (using seaice):
1306      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
1307        global_ocean.cs32x15.seaice ; update results.
1308      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
1309      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
1310        offline_exf_seaice (previously compiling B-grid).
1311    o pkg/exf:
1312      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
1313        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
1314        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
1315    o pkg/layers (adjust changes from Sept 19):
1316      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
1317        this allows to remove "layers_maxNum" dimension from all layers arrays.
1318    o pkg/layers (adjust changes from Sept 19):
1319      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
1320      - snap-shot extended to all type of layers (not just the 1rst type);
1321      - remove layers variables when corresponding CPP option is undef.
1322    o pkg/layers:
1323      - rename pkg/layers variable and add new output (layer exist & un-weighted
1324        velocity in layer)
1325    o pkg/seaice:
1326      - simplify (?) ocean-drag coefficent computations by using
1327        the same routine in all three solvers (saves some code lines)
1328      - remove global fields DRAGA and DRAGS from C-grid code and
1329        declare them locally in lsr.F (the only place where they are
1330        still used)
1331      - update AD output of lab_sea.evp (very sensitive anyway).
1332    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
1333      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
1334      and SEAICEuseJFNK=.true. A few things to note:
1335      - involves a FGMRES, that is parallel but very inefficient,
1336        because of many scalar products (global sums) in the Gram-Schmidt
1337        orthogonalization method. Needs to be replaced. Original code
1338        from J.-F. Lemieux
1339      - preconditioner for FGMRES is a stripped down version of LSOR
1340      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
1341        preconditioner. For the preconditioner, the default is set to 10.
1342      - Jacobian times vector is computed with finite differences
1343      - marginally related to JFNK-solver: add a smooth regularization for
1344        zeta with tanh that will improve convergence (Lemieux and Tremblay,
1345        2009) for any implicit solver (not implemented for EVP because EVP
1346        does not need this regularization in the first place). Define
1347        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
1348    o eesupp/src:
1349      - check in genmake2 that intrinsic S/R flush is available.
1350      - add S/R to flush IO unit (if intrinsic S/R flush is available)
1351      - flush standard & error msg unit before MPI termination
1352      - if debugMode, flush IO unit after printing msg
1353    o pkg/ctrl:
1354      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
1355        to ctrl_set_unpack_xyz.
1356    
1357    checkpoint64 (2012/10/09)
1358    o pkg/shelfice
1359      - in mom_fluxform.F, mom_vecinv.F:
1360        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
1361        Bug fix KappaRU -> KappaRV
1362        does not change verification/isomip but may change other setups
1363        (presumably constant KappaRU=KappaRV)
1364      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
1365    o pkg/obcs:
1366      - fixed some indexing bugs in obcs_seaice_sponge.F
1367      - added obcs relaxation subroutines for HSALT and HSNOW
1368      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
1369    o pkg/seaice:
1370      - add "multicategory" parameterization for snow in analogy to ice,
1371        default is off for now.
1372    o pkg/obcs:
1373      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
1374        see verification/seaice_obcs/input.seaiceSponge for example application.
1375      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
1376        index setting by master-thread. This fix multi-threads Pb in previous modifs.
1377    o pkg/layers :
1378      - add diagnostics to pkg/layers
1379      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
1380        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
1381    o pkg/generic_advdiff/gad_implicit_r.F :
1382      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
1383    o pkg/seaice/seaice_growth.F:
1384      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
1385    o pkg/obcs:
1386      - change default setting of OBCS_UVICE_OLD from defined to undef;
1387      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
1388        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
1389      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
1390      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
1391        with Southern & Western OB at a tile edge (at least in a simple set-up).
1392    o pkg/obcs:
1393      - change settings of OB index in case OB coincides with tile edge (shared by
1394        2 tiles), so that common OB location is registered by both tiles (instead of
1395        only 1). However, for Southern and Western OB, index value = 0 is not
1396        recognized as valid OB index (=default null value) and needs to be fixed.
1397      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
1398      - new parameter "OB_indexNone" for null index value (for now, still zero)
1399        to replace hard-coded null index value of zero.
1400    o pkg/exch2:
1401      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
1402        always check buffer-size (but outside the loop); move checking for valid
1403        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
1404        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
1405  o pkg/ctrl (pack & unpack):  o pkg/ctrl (pack & unpack):
1406    - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable    - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
1407      (locally defined) for different variables (+ remove the variable-specific      (locally defined) for different variables (+ remove the variable-specific

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