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revision 1.1743 by mlosch, Mon Sep 24 15:07:38 2012 UTC revision 1.2001 by jmc, Wed May 28 20:00:24 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 model/src & most packages:
8      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
9      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
10        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
11        "data.{pkg}" exist ; and leave the S/R (return) just after.
12    o pkg/seaice:
13      - remove code that resets useThSice in S/R seaice_readparms and
14        replace by a warning in S/R seaice_check
15      - remove parameter MULTDIM, replace with nITD and runtime
16        parameter SEAICE_multDim (still hard-wired to nITD if
17        SEAICE_ITD is defined)
18    
19    checkpoint64x (2014/05/24)
20    o verification/lab_sea:
21      - update adjoint and TLM output following changes to pkg/salt_plume
22      - un-do the update after putting back local recip_Cp in few places.
23    o pkg/salt_plume: modifications by An Nguyen:
24      - add capability to do brine rejection (salt-plume) as function of
25        volume+tracers (instead of only salinity tracer).
26      - conserve volume by exchanging volume from each kLev to above to
27        accommodate in-coming brine volume
28      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
29      - switch KPP surf buoyancy due to brine forcing to 3-d
30        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
31      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
32      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
33        in East/West Arctic.
34    o pkg/sbo:
35      - incorporate modifications from Katherine Quinn to enable the use of sbo
36        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
37        output for future testreport verification (unfinished).
38    o pkg/atm_phys:
39      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
40        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
41        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
42    o pkg/seaice
43      seaice_calc_ice_strength.F: modify expression to avoid divisions
44        (affects truncation)
45      seaice_do_ridging.F: clean up the insectarium
46      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
47      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
48      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
49      - add some debugging information and error messages (warnings)
50    o model/src: modifications relatd to atmosphere p*:
51      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
52      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
53        of vertical profile tRef in geopotential background and anomaly.
54      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
55        and pkg/atm_phys.
56      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
57        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
58    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
59    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
60        not used right now, but can be used in BGC packages to fix conservation.
61    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
62        other packages too.
63    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
64        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
65    o model/src:
66      - since we have several heat capacity (even in model/src), define "recip_Cp"
67        as local variable (no longer in common block) to avoid any confusion.
68      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
69    o pkg/exf:
70      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
71        air density as function of air Temp, Humidity and atm pressure.
72    
73    checkpoint64w (2014/05/02)
74    o verification:
75      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
76        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
77        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
78        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
79        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
80    o model/src: for atmosphere in p* coords:
81      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
82      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
83        but not yet activated.
84    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
85      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
86      - this changes the results (but not for any verification experiment, because
87        none tests this), but avoids having an extra field in the restart files
88    o pkg/seaice: remove global variable TICE (not needed)
89      - replace by TICES or local variable where necessary (cost_seaice_test,
90        seaice_diagnostics_state)
91      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
92      - use specific read/write routines for reading and writing individual leves
93        of a multilevel field
94    o pkg/ctrl & model/inc:
95      - move additional anomaly fields of control vars (related to options:
96         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
97        from DYNVARS.h into new header file: CTRL_FIELDS.h
98    o pkg/seaice: some small modifications to the ridging code
99      - make fw2ObyRidge a global variable and add the freshwater flux to
100        seaice_growth
101      - pass actual thickness from seaice_prepare_ridging, so that it is
102        computed only in one place and compute it in the same way as in
103        seaice_growth
104      - initialise more fields in seaice_do_ridging that where cause floating
105        point exceptions over land
106    o pkg/seaice: preparations for ridging code and first real ridging code
107      - move most of "PART 1" of S/R seaice_growth into a new and separate
108        S/R seaice_reg_ridge that will both regularize the state variable after
109        advection call the actual ridging routine;
110      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
111        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
112      - remove ridging code from seaice_advdiff
113      - clean up remaining part 1 of seaice_growth in an attempt to make it
114        more readable (this is probably subjective)
115      - call seaice_itd_redist once in the initialisation phase to have the initial
116        conditions in the correct category
117      - finally: add new ridging routine for ITD code
118    
119    checkpoint64v (2014/04/11)
120    o pkg/ecco:
121      - add runtime parameters mdt[start,end]date[1,2]
122      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
123    o pkg/seaice:
124      - make deltaC a global variable, so that it can be used in ridging code
125      - first step towards ridging: introduce new routines that compute
126        ice strength based on ridging parameters
127      - add diagnostic for HSNOWITD
128      - add opnWtrFrac as a global variable (required for ridging scheme)
129    o pkg/salt_plume + pkg/seaice/seaice_growth.F
130      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
131        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
132    o verification/hs94.1x64x5:
133      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
134      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
135    o autodiff:
136      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
137        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
138        For now, only in pkgs used in verification/hs94.1x64x5.
139      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
140        which are specific to TAF/TAMC).
141      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
142        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
143        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
144      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
145        building mitgcmuv_ad (make adAll).
146    o pkg/ecco:
147      - cost_gencost_seaicev4.F:
148         reformulate proxy cost as function of sst and local param SEAICE_freeze
149         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
150      - add stop statement if old names siv4-[sst,vol] are used
151      - add snapshots + cost reports for atmospheric longwave
152      - remove factor 0.1 in front of wtau[u,v]
153      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
154         ALLOW_TMI_SST_COST_CONTRIBUTION
155    o pkg/atm_phys:
156      - add some diagnostics for Short-wave and for convection S/R.
157    o pkg/seaice/seaice_growth:
158      - fix a bug in the lateral melt parameterization for SEAICE_ITD
159        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
160      - rearrange loop order for better vector code in the same code block
161      - rewrite the floeDiameter formula to have fewer divisions
162      -  (miraculously) none of this changes the results of seaice_itd
163    o pkg/smooth:
164      - move param smooth2Ddiffnbt to pkg/ecco
165    o pkg/salt_plume:
166      - salt_plume_frac.F:
167         clean up local param names
168         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
169    o pkg/rw:
170      - add RS version of S/R READ_MFLDS_LEV.
171    o pkg/streamice:
172      - fix the restart test by writing/reading pickup_streamice files.
173    o pkg/seaice:
174      - refine checks for jfnk-related parameters
175      - comment out if statement with SEAICEuseIMEX parameter as long as there
176        is no IMEX code to avoid confusion and surprises
177    
178    checkpoint64u (2014/03/07)
179    o verification/MLAdjust:
180      - rename secondary test suffix:
181         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
182         0.leithD -> AhFlxF  + switch to flux-form
183         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
184         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
185    o pkg/mom_vecinv:
186      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
187        to be before mom_calc_visc.F)
188      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
189      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
190        this is simpler for the adjoint and for diagnostics.
191    o model/src + pkg/momentum:
192      - add input files for  2-D additional Western and Southern cell-edge wall
193         (e.g., to add "thin-wall" where it is =1).
194      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
195        using 2nd hFacZ that is computed from initial (fix domain) hFac
196      - known limitations of thin wall implementation: not yet coded for sigma
197        coords; not working with CD-scheme neither.
198    o pkg/seaice:
199      - rename recently introduced parameters from (wrong name) AB to
200        BDF (backward difference time discretisation)
201      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
202    o tools/adjoint_options:
203      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
204    
205    checkpoint64t (2014/02/01)
206    o pkg/ecco
207      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
208        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
209      - replace hard-coded record number and period which only work for monthly
210        with read-in runtime param that works for other periods (month,day,year)
211    o pkg/thsice
212      - corrected store directive fixes thsice adjoint gradient checks
213    o genmake2 & testreport:
214      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
215        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
216        Update testreport accordingly. No need to set "export OPENAD=true"
217        in adjoint_options/adjoint_oad anymore (will be removed later).
218    o pkg/shelfice:
219      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
220        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
221        so that surface forcing applies to k=kSurf if using pkg/shelfice.
222    o pkg/ctrl, pkg/grdchk, pkg/ecco:
223      - Changes to make GENARR more modular (i.e. invisible if not used)
224    o model/src/temp_integrate.F and salt_integrate.F
225      - re-include store directives that were removed on Dec 27th.
226    o model/src/external_forcing_surf.F
227      - add storage directives for EmPmR and PmEpR to avoid recomputation of
228        seaice_model in the adjoint that is problematic when seaice_model is
229        turned off in the adjoint. The resolved issue dated back to July when
230        EXTERNAL_FORCING_SURF call was moved.
231        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
232    o pkg/exf/exf_check.F
233      - fix a small bug again (originally found by Wentao Liu, now found again)
234      - streamline error output
235    o pkg/streamice and aim_v23:
236      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
237        Apple's /usr/bin/cpp knows what to do:
238        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
239        Target: x86_64-apple-darwin13.0.0
240    
241    checkpoint64s (2014/01/05)
242    o tools/adjoint_options:
243      - switch to fastopt.net TAF server (instead of default fastopt.de) for
244        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
245    o model/src:
246      - remove some unnecessary TAF storage directives in forward_step.F and
247        in dynamics.F (note: not always removed by TAF, e.g., double storage
248        of kappaRU,kappaRV in former version of dynamics.F).
249    o model/src & pkg/ptracers:
250      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
251        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
252        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
253      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
254      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
255      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
256    o useSingleCpuInput separates single-CPU input from single-CPU output;
257        for now only implemented for in exf_interp_read.F
258    o verification/advect_xy:
259      - fix missing EXCH call in local version of ini_salt.F and update output.
260    o momentum diagnostics:
261      - fix which deltaT is used in Total-Tendency diagnostics.
262      - fix typo in diagnostics for momentum tendency from AB.
263    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
264        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
265    
266    checkpoint64r (2013/12/08)
267    o verification/*/results:
268      - Update reference output of experiments that were passing with just 13 digits
269         (make it easier to detect future changes in results)
270    o model/src & pkg/ptracers:
271      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
272        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
273        to inside ptracers_integrate.F ; remove ptracers_advection.F
274    o coupling interface pkgs:
275        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
276      - change the config check to test the agreement of Ocean Depth
277        with ATM land/sea mask (instead of ATM orography);
278      - send to coupler the number of coupler time-steps to do for this run:
279        this allows to check for consistency and don't need anymore to be
280        specified in parameter file "data";
281      in coupler:
282      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
283      - improve report to log-file of config setting (pass log-file unit to few S/R)
284    o pkg/compon_communic:
285      - add coupling send/receive for non-tiled integer vector;
286      - add S/R to check and stop if any proc has an error (similar to
287        eesupp/src/stop_if_error.F but single thread and across Comm_World).
288    o pkg/exch2:
289      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
290        through list of all tiles my proc owns.
291    o model/src:
292      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
293        from rTrans) to simplify dependencies (no need to store rTrans anymore in
294        calling S/R); this affects AD results at machine truncation level:
295        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
296        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
297    o tools/build_options:
298      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
299    o coupling interface pkgs:
300        [compon_communic, atm_compon_interf & ocn_compon_interf]
301      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
302        to each S/R that needs it; remove un-used variables.
303      - change component tile registration (cpl_register.F in both compon_interf
304        and mitcomponent_tile_register.F) to pass the full list of tiles
305        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
306      - with pkg/exch2: adopt the same convention used for I/O to define mapping
307        towards coupler global array (unless W2_useE2ioLayOut=F):
308         a) can now use different tiling between atm & ocn comp.
309         b) no needs to modify the run-Off map when changing tiling (was needed
310            even if using the same tiling between atm & ocn).
311         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
312            full land tiles); not yet tested.
313      - check for valid mapping from comp. tile to coupler global array
314      - improve report of tile registration results to log file.
315    o pkg/exch2:
316      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
317        tile-registration (CPL_REGISTER);
318      - activate (un-comment) definition and setting of "W2_tileIndex" list to
319        store the local bi,bj indices of each tile;
320      - also print bi,bj in local report to log file;
321      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
322        Jun 2009 modif of pkg/exch2).
323    o testing on baudelaire:
324      - run 2 tests at a time: no significant slow down (since enough cpu) and
325        get the full set of test done earlier
326      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
327    o model/src/thermodynamics.F and routines called from it:
328      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
329        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
330        velocity (outp) by adding bolus velocity.
331      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
332        mass transport from velocity + lateral grid cell area
333      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
334      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
335     in thermodynamics.F
336      - remove k from thermodynamics.F and move it to temp_integrate.F
337        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
338        loop).
339      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
340        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
341        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
342        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
343      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
344        global_ocean.90x40x15, tutorial_global_oce_biogeo and
345        tutorial_tracer_adjsens (+ TLM output).
346    o tools/OAD_support and (verification/*/) code_oad:
347      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
348        module conversion ; remove unneeded CPP_EEOPTIONS.h.
349      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
350        version (closer to model/inc/CPP_OPTIONS.h).
351    o model/src:
352      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
353        retired list of parameters (routine FREEZE has been replace by surface
354        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
355    o pkg/gmredi:
356      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
357        velocity (same scheme but affects machine truncation) for GM_AdvForm.
358      - update output of FWD experiments: front_relax.bvp,
359        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
360    
361    checkpoint64q (2013/11/17)
362    o verification:
363      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
364        tutorial_global_oce_biogeo and global_ocean.90x40x15.
365      - generate new output (growth & melt) for seaice_itd experiment after
366        updating the input pickup_seaice files (previously wrong).
367    o pkg/cost:
368      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
369        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
370        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
371          cannot be applied to var in common block).
372        o allows to get results independent of tile-per-proc setting (if using
373          slower GLOBAL_SUM_SEND_RECV option).
374      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
375        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
376        forward gradients: update output).
377      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
378        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
379    o pkg/mom_common:
380      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
381        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
382        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
383        ensure that all field value that are used are set.
384    o tutorial_deep_convection (smag3d):
385      - add missing scaling in mom_calc_smag_3d.F;
386      - set smag3D_coeff in input.smag3d such that results do not change.
387    o pkg/dic:
388      - change dic_cost.F to compute cost on each tile first and then apply
389        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
390        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
391      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
392    o eesupp/src & pkg/mdsio:
393      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
394        (from pkg/mdsio) since they are no longer used for tape IO.
395      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
396        (+ keep a copy in pkg/atm_ocn_coupler).
397    o verification/isomip:
398      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
399    o tools/build_options:
400      - optfile linux_amd64_ifort11, fast (no ieee) case:
401        to get a working restart for all experiments, add "-fp-model source"
402        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
403    
404    checkpoint64p (2013/10/20)
405    o pkg/autodiff:
406      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
407        criteria, return to simple (default) tape IO format.
408    o pkg/mdsio (+ eesupp/src):
409      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
410        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
411      - fix globalFile and singleCpuIO options using simpler global mapping.
412      - new pairs of scatter/gather vector S/R (one for each type, generated from
413        template) corresponding to simpler global mapping.
414      - adread_write.F: switch to new S/R (but leave old calls commented) and write
415        to globalFile when parameter globalFiles is set to True.
416      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
417    o pkg/autodiff:
418      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
419        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
420        missing, just add a STOP if array type do not match.
421    o pkg/exf:
422      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
423         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
424         and rename array obsSIce to exf_iceFraction.
425    o tutorial_deep_convection:
426      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
427        for now all in this exp. code dir.
428      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
429        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
430    o eesupp/src:
431      - added SINGLE_DISK_IO option because reading of parameter files on
432        very large number of processors did not work with existing set-up
433    
434    checkpoint64o (2013/09/25)
435    o pkg/atm_phys & atm_compon_interf:
436      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
437    o tools/build_options:
438      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
439        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
440        remove CPP setting (was identical to genmake2 default).
441    o pkg/gmredi & model/src: Some updating and work done on the residual model.
442      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
443      - fixed up the calculation of the eddy stress and how it is added to the
444        external forcing via taueddy_external_forcing.F
445      - at the moment, it is very experimental and only works with the variable eddy
446        diffusivity calculated in gmredi_k3d.F
447    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
448        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
449    o testreport (& tools/do_tst_2+2):
450      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
451    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
452      - remove CPP='cpp -traditional -P' (this is genmake2 default)
453      - add switch (for big setups) to use 'medium' memory-model (but leave it
454        commented out for now). Note: needed with FC 19 to compile big setups.
455    o pkg/atm_compon_interf:
456      - regroup per field origin (model & pkgs) the coupling storage routines
457         (which accumalate in time each coupling field)
458      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
459        update accordingly + simplify aim_do_physics.F
460    
461    checkpoint64n (2013/08/26)
462    o pkg/bbl:
463      - update formulation to reduce dispersion of tracer properties in bbl
464      - replaced horizontal and vertical transport parameters with velocities
465      - changes results for verification/global_with_exf.yearly
466    o verification/halfpipe_streamice:
467      - change to matrix construction; update both Fwd & AD output.
468    o verification/tutorial_tracer_adjsens:
469      - OpenAD test: switch to vector-invariant momentum since fluxform with
470        rStar causes problems with OpenAD; update output.
471    o tools:
472      - genmake2: define a common prefix for all temp-file names ; move them
473        to local /tmp disk (but would be easy to move them back);
474      - xmakedepend: apply the same switch for temp-files.
475    o pkg/offline:
476      - changes for use with rStar (NLFS): assume that we continue to provide
477        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
478        output files) and apply r* scaling at each time-step (function of the time
479        varying Eta field); use normal pickup files (needed for restart with NLFS).
480    o adjoint with OpenAD:
481      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
482        package openad.  This package has to be compiled for all runs with OpenAD
483        instead of specifying code_oad_all as a modification directory.
484      - link the fortran templates from tools/OAD_support to the build directory
485        for preprocessing to avoid conflicts between different setups compiled
486        simultaneously and simplify cleanup.
487    o pkg/exf:
488      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
489        main model or other pkgs are exchanged in EXF_MAPFIELDS).
490    o model/src:
491      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
492        (similar to do_fields_blocking_exchanges.F).
493    o tools/genmake2:
494      - remove TAF output src code just before calling staf (when not doing a fresh
495        built, will stop if things go wrong with staf).
496      - fix target "adobj" (left from TAF version-2 transition)
497    o pkg/diagnostics:
498      - add a parameter to track the status of pkg/diagnostics activation;
499        this replace/extend the use of logical param "settingDiags" (to check
500        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
501        New S/R to print error message and stop when pkgStatus is not right.
502      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
503    
504    checkpoint64m (2013/08/13)
505    o model/inc:
506      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
507        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
508    o pkg/kpp & aim_v23:
509      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
510    o pkg/seaice:
511      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
512        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
513      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
514    o eesupp/src:
515      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
516        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
517    o switch to TAF version-2:
518      - add flow directives to "freeze" naming convention for ad-routines that
519        are used in I/O routines of adjoint state and associated common blocks
520        that are used in adcommon.h (backward compatible with version-1)
521      - update all ad-optfiles (in tools/adjoint_options + few local to some
522        verification exp) to switch to latest TAF version (currently 2.5.5);
523        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
524        out except for diva).
525      - the major change with TAF version-2 is that both the differentiated
526        routines and the forward routines (new) are returned as part of the TAF
527        output source code. Update genmake2 accordingly.
528      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
529        with version-2 when compared to TLM or FWD gradient); other experiments
530        output show minor changes (machine truncation level); update the few AD &
531        TLM output with 12 matching digits only (some prior to version-2 switch).
532    
533    checkpoint64l (2013/08/05)
534    o model/src:
535      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
536      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
537        when using TAF but only if using OpenAD.
538    o pkg/mom_common+fluxform+vecinv:
539      - always set horiz. viscosity arrays to background value before calling
540        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
541        only when using variable horiz. viscosity (useVariableVisc=T);
542      - simplify mom_vecinv.F (only 1 block for momViscosity).
543    o pkg/mom_common: variable horiz. viscosity in NH code
544      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
545        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
546      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
547        useBiharmonicVisc & useVariableVisc.
548      - fix old bug (already in 1rst implementation of variable horizontal viscosity
549        in calc_gw.F, version 1.27, 2006/06/20):
550        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
551        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
552      - change background horiz viscosity in vertical momentum (gW) to always be
553        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
554        any type of variable viscosity, e.g., viscAh/4Grid)
555      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
556        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
557        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
558        default viscAh,viscA4 is zero).
559    o model/src:
560      - extend length of drC & recip_drC from Nr to Nr+1.
561    o Divided Adjoint (DIVA) with MPI:
562      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
563      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
564        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
565    
566    checkpoint64k (2013/07/23)
567    o tools/OAD_support:
568      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
569        and remove it from genmake2.
570    o tools/build_options:
571      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
572        MPI_HEADER_FILES list (let genmake2 find the missing headers)
573    o verification/halfpipe_streamice:
574      - change to driving stress formulation; update both Fwd & AD output.
575    o tools/genmake2 and Divided Adjoint with MPI:
576      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
577      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
578      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
579        Makefile, which is set by genmake2, and check which mpi-headers are needed.
580        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
581      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
582    o testreport:
583      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
584        perform additional runs (number of additional runs is "add_DIVA_runs" taken
585        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
586    o verification/lab_sea (AD test):
587      - change to test Divided Adjoint Run in this set-up (both standard AD test
588        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
589    o pkg atm_ & ocn_compon_interf:
590      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
591        staggerTimeStep implementation) and disable (retired) corresponding
592        parameter.
593    o pkg/offline:
594      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
595      - add S/R OFFLINE_CHECK to print offline parameter summary
596        and stop if loading a file that is not used;
597      - enable to calculate GMRedi tensor, KPP mixing and convective index
598        when the corresponding file(s) is/are not specified (but pkg is used).
599      - comment out resetting of monitorFreq (to endTime) since it still useful
600        for monitoring CFL numbers and checking offline fields.
601    o OpenAD:
602      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
603        smaller standard output) and generate new (smaller) output (on baudelaire
604        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
605    o model/src:
606      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
607        (where external_forcing_adjust was called) and change list of arguments;
608      - merge external_forcing_adjust.F into external_forcing_surf.F
609      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
610        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
611        previously in file "balance_relax.F", now removed); remove corresponding
612        arrays in FFIELDS.h.
613      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
614        a hack for getting back surfaceForcingS (loaded from file) when using
615        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
616      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
617        (was getting only 11 digits for AD-grad, due to different truncation
618         error in AD code).
619    
620    checkpoint64j (2013/07/04)
621    o pkg/offline:
622      - to enable the use of other features with pkg offline (e.g., obcs),
623        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
624      - comment out "allowFreezing" (now active) in 2 offline testing exp.
625    o pkg/exf ALLOW_RUNOFTEMP
626      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
627      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
628      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
629    o pkg/atm_phys:
630      - allows to add some damping on uVel,vVel (strength only function of k).
631    o verification, ad-tests:
632      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
633        global_ocean_ebm and offline_exf_seaice.thsice.
634    o verification/halfpipe_streamice:
635      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
636        flux input boundary conditions to be ignored; a fix for this bug changed
637        verification results for forward test.
638      - add adjoint test.
639    o pkg/ptracers:
640      - allow to restart without SOM pickup (resetting SOM to zero).
641    o pkg/gmredi:
642      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
643      - It uses mixing length theory and suppression by steering level effects to
644        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
645        to JPO, for more details).
646      - It also uses the diffusivity to calculate an eddy induced streamfunction
647        based on a PV closure (rather than a buoyancy closure as in GM).
648      - New files added to pkg/gmredi:
649        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
650          induced overturning streamfunction (called from gmredi_calc_tensor)
651        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
652          for use in gmredi_k3d
653        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
654          the eddy diffusivity
655    
656    checkpoint64i (2013/06/18)
657    o pkg/cheapaml:
658      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
659        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
660        with pkg/cheapaml.
661    o utils/python: add subpackage for cubed sphere function, first example is
662        simple cs.pcol to plot 2D fields on a map
663    o pkg/streamice:
664      - This is a new package in MITgcm, which solves dynamic equations for ice
665         sheets and ice streams
666      - At the moment it is independent of atmosphere/ocean dynamics, or any
667        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
668        ed that this will change)
669      - There is a new verification exercise that tests it, halfpipe_streamice,
670        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
671        rectangular embayment
672      - halfpipe_streamice is forward-only for now, will have TAF test soon
673      - for questions, email dgoldber@mit.edu
674    o pkg/thsice:
675      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
676        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
677      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
678         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
679      - allow precip from pkg/cheapaml to make snow over seaice.
680    o pkg/cfc:
681      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
682      - remove atmos CFC 2-D arrays from common bloc (now local variables)
683      - change some hard-coded constant to run time parameter for reading and
684        and interpolating atmospheric CFC ; keep same default as previously.
685      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
686      - put arguments in standard order: myTime, myIter, myThid
687      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
688        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
689      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
690      - new routine to print summary of CFC params and check for consistency.
691    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
692      similar to thsice_advdiff.
693      Note that for the B-grid case the routine parameters uc/vc are overwritten.
694    o pkg/cfc:
695      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
696        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
697      - fix interpolation of atmphspheric CFC between Sorthern and Northern
698        hemisphere value.
699    o pkg/seaice:
700      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
701    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
702                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
703      - requires an additional time level that is stored in the pickup
704      - you can start with AB2 from a pickup without this time level with
705        pickupStrictlyMatch = .false.
706    
707    checkpoint64h (2013/05/26)
708    o pkg/cheapaml:
709      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
710        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
711      - consistent treatment of uWind,vWind location: assume everywhere in
712        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
713        (Note: was already the case for Tair,Qair advection);
714        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
715      - compute diabatic forcing only in the interior (excluding overlap regions)
716      - fill in array "Qsw" (for short-wave heating);
717      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
718        before any update (consistent with MITgcm state var diagnostics);
719      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
720        non periodic ; + adjusted for uWind,vWind (C-grid).
721    o pkg/seaice:
722      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
723        add explicitly pkg/exf in experiments that currently use pkg/seaice.
724      - allows to compile pkg/seaice without pkg/exf.
725    o tools/OAD_support:
726      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
727        of array "ourStepOf" in function rvNextAction (revolve.F90).
728    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
729      - change pkg name (to be used with other atmospheric physics pkg)
730        but by-pass CVS when making the new pkg so that we keep the CVS history.
731    o pkg/offline:
732      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
733        (previously called from pkg/dic_surfforcing_init.F)
734    o model/src:
735      - re-order sequence of calls within packages_init_variables.F, using
736        standard order, except for:
737         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
738         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
739    o new pkg: atm_phys
740      - add entry point and source code (previously in contrib
741          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
742        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
743      - re-order sequence of calls within packages_readparms.F,
744         packages_init_fixed.F and packages_write_pickup.F
745        (but skip packages_init_variables.F because of TAF issues).
746      - update contrib/*/atm_gray/ experiment.
747    o pkg/seaice (ITD code):
748      - simplify and fix the writing of pickup-files for ITD case
749    o pkg/seaice (ITD code):
750      - introduce floe size dependent lateral melt for ITD case;
751      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
752      - update seaice_itd experiment main output.
753    o pkg/thsice:
754      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
755        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
756        changed accordingly pkg/atm2d.
757    
758    checkpoint64g (2013/05/01)
759    o pkg/exf ALLOW_RUNOFTEMP
760      - if defined,  river and glacier runoff temperature can be read-in from
761        runoftempfile; runoftempfile needs to have same format as runofffile
762    o pkg/thsice (& pkg/bulk_force):
763      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
764        for energy content of Precip + RunOff & Evap (like with pkg/exf).
765      - change computation domain to always be the interior (without overlap).
766      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
767    o verification/tutorial_global_oce_biogeo:
768      - add preliminary OpenAD setup (still has problems)
769    o pkg/seaice:
770      - turn some parameters for choosing the convergence criterion of
771        the inexact Newton method (JFNK) into runtime parameters for convenience
772      - clean up seaice_calc_viscosities.F: remove/retire two options for
773        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
774        the results of lab_sea/input because a division has been replaced by
775        a multiplication with the reciprocal (sumNorm)
776      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
777        convergence of solver (changes results, of course), and to test some
778        new features
779    o model/src:
780      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
781      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
782      - move forcing adjustment (balancing surface forcing) in specific S/R
783        where might also be applied exchanges (if needed) to forcing arrays.
784    o pkg/shelfice:
785      - allow to specify the Ice-Shelf mass per unit area (instead of
786        shelficeLoadAnomaly) and do the conversion from one to the other
787      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
788        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
789        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
790        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
791      - update isomip experiment forward output (get machine truncation error
792        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
793    o verification/offline_exf_seaice:
794      revise data.seaice in input.thermo and input_ad and update results accordingly
795        HO = 0.2, SEAICE_areaLossFormula = 2,
796        SEAICE_growMeltByConv = .TRUE.,
797        SEAICE_doOpenWaterMelt = .TRUE.,
798      Improve consistency with input.thsice and fix the spurious 500m ice corners
799    o verification/global_ocean.cs32x15:
800      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
801        in icedyn (thsice+seaice-dyn) test and update output.
802    o verification/offline_exf_seaice:
803      - adjust list of tested variables (with testreport) and update
804        standard test output with better slection of monitored fields.
805    o pkg/cd_code:
806      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
807        experiment lab_sea.hb87
808    o tools/genmake2:
809      - change default makedepend from the system default to tools/xmakedepend:
810        When no makedepend is specified, select tools/xmakedepend it the test pass,
811        otherwise select the system default (if exist and pass the test) or
812        try to build cyrus-makedepend ; stop if none of the 3 works.
813    o pkg/exf & pkg/thsice:
814      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
815        for energy content of Precip + RunOff & Evap. Assumes:
816       1) Rain has same temp as Air.
817       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
818       3) Run-Off comes at the temp of surface water (with same Cp)
819       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
820        put directly into Latent Heat flux & should use water-vapor heat capacity.
821       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
822        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
823    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
824        (compile when SEAICE_ALLOW_JFNK is defined)
825    o pkg/thsice:
826      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
827        implementation): move THSICE_AVE call after the advection (called directly
828        from thsice_do_advect.F).
829    o verification/global_ocean.90x40x15 and OpenAD:
830      New experiment for OpenAD is identical to the one in input_ad except that
831        multiDimAdvection=.FALSE.,
832      There is still an issue with this.
833    o pkg/thsice:
834      - account for ice velocity (ocean relative velocity) in turbulent heat flux
835        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
836        and offline_exf_seaice (main test).
837    
838    checkpoint64f (2013/03/31)
839    o verification/OpenAD:
840      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
841    o verification/isomip, pkg/shelfice and OpenAD:
842      - add OpenAD setup to this exp and make shelfice package work with OpenAD
843    o verification/tutorial_global_oce_biogeo:
844      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
845    o verification/offline_exf_seaice:
846      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
847    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
848      - add OpenAD setup to this exp and make ptracers package work with OpenAD
849    o pkg/seaice/seaice_evp.F:
850       mask the asymmetric contribution of the ice-ocean stress (when
851       the turningAngle is non-zero) over open water to avoid stripes
852       in the EVP-solutions after many EVP-substeps. This does not change
853       the verification experiment (because turningAngle=0 in that experiment),
854       but will affect other EVP solutions with turningAngle.ne.0
855    o verification, AD & TLM output:
856      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
857        additions and multiplications which affect results at machine truncation
858        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
859        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
860        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
861        digits of matching.
862    o pkg/seaice:
863       modify lsr-algorithm so that it vectorizes AND converges by using a
864       "zebra" method: split vector loop into two with step size 2; this
865       solves a general convergence problem for the JFNK solver on a vector
866       computer. It has the potential to even improve convergence for
867       non-vector machines, but it does change the results so it is turned
868       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
869       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
870    
871    checkpoint64e (2013/03/05)
872    o pkg/ecco and several verification experiments:
873       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
874       from ecco package, and revert to unified routine in model/src/
875       Adjust verification experiments accordingly, especially gloal_oce_llc90
876       Should conclude long-standing work by Gael to reconsile the_main_loop with
877       ECCO and will enable OpenAD's revolve loop in ECCO setup.
878    o pkg/generic_advdiff:
879      - implement compressible flow method for multi-dim advection (similar to
880        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
881        TAF generates many recomputations) to use it; no yet coded with implicit
882        vertical advection.
883      - change experiment advect_cs (new output) and advect_xy (same output)
884        to test compressible flow multi-dim advection.
885    o pkg/generic_advdiff:
886      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
887        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
888    o pkg/seaice:
889      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
890        bug affects two verification experiments (lab_sea and lab_sea.hb87),
891        recover old (wrong) results by setting noSlipFac = 2. in
892        seaice_calc_strainrates.F;
893      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
894      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
895        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
896      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
897    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
898      - new subroutines seaice_lsr_tridiagu/v
899      - introduce loop bounds i/jmin/max to be able to use a restricted
900        additive Schwarz method, but not used for now.
901      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
902      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
903    o OpenAD support
904       Reorganize S/R call for overall time-stepping loop to facilitate
905       OpenAD revolve loop replacement
906       (new S/R main_do_loop.F)
907    o model/src:
908      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
909      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
910        ADAMS_BASHFORTH2.
911    o pkg/cheapaml:
912      - add new parameter (default=F, same as before) to disable full domain
913        (including land) periodicity in X & Y dir.
914      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
915        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
916        into single S/R CHEAPAML_TIMESTEP.
917    
918    checkpoint64d (2013/02/17)
919    o pkg/monitor (angular momentum):
920      - do not add Eta contribution to the total AM if using rigid-lid;
921      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
922      - horizontal discretisation: compute Zonal wind contribution separately for
923        each component (instead of from cell centered averaged) and use the 4
924        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
925      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
926        FreeSurf) if using vectorInvariant momentum.
927    o model/src (horizontal grid):
928      - move initialisation of all horizontal grid arrays to null value
929        from specific horizontal grid S/R to main S/R INI_GRID;
930      - add 2 new arrays to project model C-grid velocity on to zonal direction
931        (similar to AngleCosC & -AngleSinC but at U and V point location) and
932        compute them in S/R CALC_GRID_ANGLES.
933    o pkg/seaice: replace a hard coded parameter by a runtime parameter
934        SEAICE_JFNK_tolIter
935    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
936        preconditioner for JFNK (run LSR into the overlaps as far as possible,
937        i.e OLx/y-2, but overwrite the solution in the overlaps)
938      - extend loop range in seaice_calc_viscosity
939      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
940      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
941      - slightly modify loops in tridiagonal solver lsr-preconditioner
942      - by default remove the extra exchange in seaice_preconditioner with a
943        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
944      - modify offline_exf_seaice so that old results without RAS are reproduced
945        for output.dyn_jfnk.txt
946      in seaice_fgmres.F (unrelated to RAS)
947      - add a cpp-flag option for a re-ordered mapping (potentially more
948        efficient), but because this changes the results, turn it off by
949        default
950      - replace the save statement by local common blocks
951    o utils/matlab:
952      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
953      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
954        instead of local script "load_cs.m".
955    o pkg/seaice:
956      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
957        to the scalarProductMetric and the unrolling. By chance this does not
958        change the verification experiment, because of the particular domain
959        decomposition
960    o pkg/diagnostics:
961      - change default missing_value from UNSET_RL to -999.
962    o pkg/layers: improve vectorization of layers_fluxcalc.F
963      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
964        time spent in this routine by more than a factor of 3 on an NEC-SX8
965      - step 2: replace search algorithm by a bisection algorithm found in
966        Press et al. Numerical Recipes in Fortran. This algorithm can be
967        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
968        For now, use this algorithm only for TARGET_NEC_SX defined.
969      - moved the search algorithm into a separate subroutine, that is kept
970        within the same file for automatic inlining.
971      - modified catching potential errors
972    o pkg/ecco:
973      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
974    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
975      - modifications for ALLOW_GENTIM2D_CONTROL
976      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
977      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
978      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
979      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
980    o model/src:
981      - account for moist thermodynamics in (dry) potential temperature equation;
982        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
983        and cpl_aim+ocn.
984      - also switch to standard compiler (gfortran, was using ifort previously)
985        for fizhi-cs experiments reference output.
986    o pkg/ctrl:
987      - 1st step toward generic time-varying control variable (2D) via CPP option
988        ALLOW_GENTIM2D_CONTROL
989      - note new namelist ctrl_nml_genarr in data.ctrl
990    o verification/global_ocean.cs32x15:
991      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
992        thsice calling sequence and update "output.icedyn.txt" output file.
993    o pkg/ptracers:
994      - from Ryan A.: code to allow to restart a tracer at regular time interval
995        specifying a reset frequency and a reset-phase (for each tracers).
996    o pkg/thsice:
997      - implement new sequence of calls for thsice+seaice:
998          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
999          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1000      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1001        in CPP_OPTIONS.h) to recover old sequence;
1002      - update diagnostics for Intermediate State thsice diagnostics: now filled
1003        just before advection (instead of just after advection in old sequence);
1004      - update output of experiment offline_exf_seaice (standard test);
1005      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1006        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1007    o pkg/aim_v23:
1008      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1009      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1010      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1011      - Implement new sequence of calls for seaice advection (with thsice and
1012        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1013        was done before); change aim_do_physics.F (split the bi,bj loops block);
1014      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1015    o pkg/thsice:
1016      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1017        where just seaice diffusion is used without seaice-dynamics.
1018    
1019    checkpoint64c (2013/01/18)
1020    o pkg/seaice:
1021      - add a parameter JFNKres_tFac that can replace JFNKres_t
1022        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1023      - add a line search option to the JFNK solver
1024      - move update of u/vIce and computation of initial residual into a separate
1025        routine (same file); makes the code a little easier to read (?)
1026      - the line search requires computation of the residual and for some reason
1027        I cannot do the update of u/vIce at the beginning of the Newton loop
1028        without changing the results, so we move computation of the new residual
1029        also to the end of the Newton loop, even without the line search
1030    o pkg/mdsio:
1031      - write missing value (corresponding to undefined array value) to meta files;
1032        skip this if missing value is one (UNSET_RL would be a better value for the
1033        case of undefined missing value but it's current the default missing-value);
1034        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1035    o pkg/exf & thsice:
1036      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1037        diagnostics) even when SHORTWAVE_HEATING is #undef;
1038    o verification/cfc_example:
1039      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1040        illustrate how to use it).
1041    o verification/offline_exf_seaice:
1042      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
1043        files to only one time-record.
1044      in input.thermo: narrow the 2 bands of low initial ice-concentration near
1045        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
1046        snapshot output; same mcPheePiston value as in thsice with
1047        surf-current=0.2m/s.
1048      in input.thsice: similar set-up as in input.thermo (channel with same seaice
1049        initial conditions).
1050    o verification/cfc_example:
1051      - update file "data" with more standard choice (default rotationPeriod,
1052        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
1053        set deltaTFreeSurf to deltaTtracer) and update the output.
1054    o pkg/layers:
1055      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
1056      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
1057    o verification/offline_exf_seaice:
1058      - set all {field}period to zero for constant-in-time forcing (not tested
1059        anywhere else).
1060    o verification/offline_exf_seaice:
1061      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
1062      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
1063    o model/src:
1064      - implement Finite-Volume method for (hydrostatic) presure gradient
1065        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
1066    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
1067      - In order to be compatible with the default EVP code, this requires changing
1068        the EVP code around a little; and because any small change immediately
1069        breaks the lab_sea.hb87 verification experiment, the reference output is
1070        updated two times (each time the remaining aggrement was only 2 digits):
1071        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
1072        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
1073        The adjoint test lab_sea.evp also needed to be updated.
1074      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
1075        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
1076        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
1077        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
1078        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
1079        kept obscure, because I need to test it a little more.
1080    o pkg/cheapaml:
1081      - fix few incorrect type (_RL/_RS) in subroutine calls.
1082    o pkg/seaice:
1083      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
1084        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
1085    o model/src:
1086      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
1087        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
1088        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
1089    o pkg/cheapaml:
1090      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
1091        update output of experiment cheapAML_box.
1092      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
1093        and set them only in one place (cheapaml_readparms.F).
1094      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
1095      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
1096        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
1097    o model/src/the_main_loop.F:
1098      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
1099    o pkg/seaice:
1100      - remove legacy branch code.
1101      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
1102    o verification/*/code*/SEAICE_OPTIONS.h:
1103      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
1104        SEAICE_CAP_HEFF).
1105    o pkg/cheapaml:
1106      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
1107        to load new forcing fields.
1108      - add missing "_d 0" where it's needed; + some editing (improve indentation).
1109      - remove switch to "-r8" compiler option (no longer needed) in verification
1110        cheapAML_box, keep same output (small trucation error differences).
1111    o verification/offline_exf_seaice:
1112      - add thermodynamics only test.
1113    o verification/cheapAML_box:
1114      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
1115        keep same output (same 14 digits for cg2d).
1116      - switch on "-r8" compiler option (some numerical values are missing
1117        the "_d 0") and update output (only 6 digits for cg2d were preserved).
1118    
1119    checkpoint64b (2012/12/24)
1120    o pkg/cheapaml:
1121      - remove un-used variables (Qnet,EmPmR) from pickup files.
1122      - store tendency of advected variables into cheapaml pickup file
1123        and fix the AB-2 restart.
1124    o verification/offline_exf_seaice and lab_sea adjoint:
1125      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
1126      - switch to 4 time steps in offline, consistent with lab_sea.
1127      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
1128      - update results after change of experiment seaice.
1129    o pkg/seaice:
1130      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
1131        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
1132        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
1133        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
1134    o model/src:
1135      - add run-time parameter to select CG2D solver minimum-residual solution
1136        (in case of a poor convergence).
1137    o pkg/seaice/seaice_lsr.F
1138      - move calculation of matrix coefficients into new
1139        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
1140        file; the main purpose of this change is to be able to reuse the code
1141        in S/R SEAICE_PRECONDITIONER
1142      - modify the computation of the residual so that the mass of sea-ice
1143        is not used twice; this simplifies the calculations, but since
1144        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
1145        not tested in testreport---this does not affect the testreport results.
1146    o verification/seaice_obcs:
1147      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
1148        verification/lab_sea/input.salt_plume; changes results/output.txt*
1149    o model/src:
1150      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
1151    o pkg/seaice:
1152      - improve description of parameters in seaice_fgmres.F and start
1153        cleaning up the code
1154      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
1155        second argument
1156      - add a metric based on grid cell area to SEAICE_SCALPROD; update
1157        results of offline_exf_seaice.dyn_jfnk
1158      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
1159    o pkg/aim_v23:
1160      - fix an other bug in dissipation heating (grid-cell area was missing).
1161    o model/src + pkg/seaice:
1162      - add global (multi-tile) linear solver for pair of tri-diagonal system
1163        along X and Y lines, respectively for U and V component.
1164        Note: 1) MPI and cube-exchange not yet coded.
1165            2) probably not accurate for poorly conditioned / large size problem.
1166      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
1167        default: not compiled and not used.
1168    o pkg/seaice:
1169      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
1170        introduce bi/bj loops and use global_sum_tile_rl instead of
1171        mpi_allreduce in seaice_fgmres.F
1172      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
1173      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
1174      - add a verification experiment for JFNK in offline_exf_seaice
1175    o verification:
1176      - change (for now, only fwd test) offline_exf_seaice experiment:
1177        use a re-entrant channel with idealized coastline (trapezoidal shape)
1178        at southern boundary to explore seaice dynamics and thermodynamics
1179        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
1180        secondary test (input.thsice) use thermodynamics only with SST relaxation.
1181      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
1182    o pkg/exf:
1183      - disable "sstExtrapol" when Nr=1
1184    o verification:
1185      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
1186        to test pkg/cheapaml.
1187    o pkg/aim_v23 & pkg/shap_filt:
1188      - fix dissipation heating (erroneous gravity multiplication factor).
1189    o pkg/seaice:
1190      - remove unused field pressPre from jfnk solver
1191      - rename two subroutines in seaice_preconditioner.F
1192    o eesupp/src:
1193       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
1194    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
1195       - remove wrong parts of the rhs and the lhs (were in there
1196         because I did not understand the concept of this preconditioner)
1197       - add an exchange between u- and v-sweep. This increases communication
1198         by a factor of two but improves the convergence of jfnk. Ideally,
1199         one would like the u- and v-sweep to be independent. So far within
1200         undocumented ifdefs
1201       - reorganize the extra computations for printing the residuals
1202    o tools/genmake2:
1203      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
1204        since it's not necessary (and was preventing to use MNC in some cases).
1205    
1206    checkpoint64a (2012/11/16)
1207    o pkg/autodiff:
1208      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
1209        autodiff_readparms.F no longer depends on calling order (within
1210        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
1211        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
1212        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
1213    o pkg/obcs:
1214      - adding tidal velocity forcing capability to obcs
1215        for usage example, see verification/seaice_obcs/input.tides
1216    o pkg/seaice:
1217      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
1218        SEAICE_LSRrelaxU/V
1219      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
1220    o pkg/aim_v23:
1221      - implement heating from friction (bottom friction and stratospheric drag).
1222    o pkg/shap_filt:
1223      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
1224        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
1225    o model/src:
1226      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
1227        time-constant addMass field from file (addMassFile);
1228      - support for heating due to friction (and Kinetic Energy dissipation):
1229        add option, run-time switch and 3-D field array + support code ; each pkg
1230        or S/R can add heating contribution (if there is a sink of KE); the sum is
1231        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
1232    o pkg/seaice:
1233      - complete merge of ITD code into seaice_growth.F
1234        from MITgcm_contrib/torge/itd/code/
1235        no verification so far, but Torge Martin tested
1236        "1-D test case and Beaufort set up;
1237        deliver okay results after 1 model year."
1238      - complete merge of SEAICE_SIZE.h into all relevant routines
1239      - move computation of eta at Z-points into calc_viscosities
1240        + introduce global field etaZ
1241        + add different methods for computing etaZ, for now the old
1242          method (simple averages of eta to Z-points) is hardwired
1243        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
1244          seaice_preconditioner
1245      - simplify computations for SEAICE_ZETA_SMOOTHREG
1246      - seaice_preconditioner:
1247        + replace one remaining press by pressLoc (mistake)
1248        + adjust printing of residuals
1249      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
1250        + add (SEAICE.h) and rename some counters (initiliased in
1251          seaice_init_fixed.F)
1252        + add _BEGIN/END_MASTER (myThid)  around print statements
1253        + print total number of iterations and failures over SEAICE_monFreq
1254          interval to STDOUT
1255      - move control over output-messages by fgmres to seaice_jfnk to save
1256        some operations
1257      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
1258        in order to make restarts with sol .ne. zero (fgmres with restarts)
1259        (seaice_jfnk.F, seaice_fgmres.F)
1260      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
1261        a serious convergence problem when open boundaries are involved
1262    o pkg/ggl90: fix computation of control volumes for the case of
1263      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
1264      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
1265    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
1266    o pkg/autodiff
1267      - Add inAdMode switch for SEAICEuseDYNAMICS:
1268        SEAICEuseDYNAMICSinAdMode
1269        (extend logic in ADAUTODIFF_INADMODE_SET)
1270    o pkg/seaice
1271      - Step 1 of merging ice-thickness distribution (ITD) code from
1272        MITgcm_contrib/torge/itd/ (author: Torge Martin)
1273        The code implements concept laid out in Thorndike et al. (1975);
1274        code is enabled via CPP flag SEAICE_ITD
1275        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
1276        code is not complete yet!!
1277      - SEAICE_SIZE.h now included in almost all seaice routines
1278    o verification (using seaice):
1279      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
1280        global_ocean.cs32x15.seaice ; update results.
1281      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
1282      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
1283        offline_exf_seaice (previously compiling B-grid).
1284    o pkg/exf:
1285      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
1286        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
1287        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
1288    o pkg/layers (adjust changes from Sept 19):
1289      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
1290        this allows to remove "layers_maxNum" dimension from all layers arrays.
1291    o pkg/layers (adjust changes from Sept 19):
1292      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
1293      - snap-shot extended to all type of layers (not just the 1rst type);
1294      - remove layers variables when corresponding CPP option is undef.
1295    o pkg/layers:
1296      - rename pkg/layers variable and add new output (layer exist & un-weighted
1297        velocity in layer)
1298    o pkg/seaice:
1299      - simplify (?) ocean-drag coefficent computations by using
1300        the same routine in all three solvers (saves some code lines)
1301      - remove global fields DRAGA and DRAGS from C-grid code and
1302        declare them locally in lsr.F (the only place where they are
1303        still used)
1304      - update AD output of lab_sea.evp (very sensitive anyway).
1305    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
1306      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
1307      and SEAICEuseJFNK=.true. A few things to note:
1308      - involves a FGMRES, that is parallel but very inefficient,
1309        because of many scalar products (global sums) in the Gram-Schmidt
1310        orthogonalization method. Needs to be replaced. Original code
1311        from J.-F. Lemieux
1312      - preconditioner for FGMRES is a stripped down version of LSOR
1313      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
1314        preconditioner. For the preconditioner, the default is set to 10.
1315      - Jacobian times vector is computed with finite differences
1316      - marginally related to JFNK-solver: add a smooth regularization for
1317        zeta with tanh that will improve convergence (Lemieux and Tremblay,
1318        2009) for any implicit solver (not implemented for EVP because EVP
1319        does not need this regularization in the first place). Define
1320        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
1321    o eesupp/src:
1322      - check in genmake2 that intrinsic S/R flush is available.
1323      - add S/R to flush IO unit (if intrinsic S/R flush is available)
1324      - flush standard & error msg unit before MPI termination
1325      - if debugMode, flush IO unit after printing msg
1326    o pkg/ctrl:
1327      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
1328        to ctrl_set_unpack_xyz.
1329    
1330    checkpoint64 (2012/10/09)
1331    o pkg/shelfice
1332      - in mom_fluxform.F, mom_vecinv.F:
1333        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
1334        Bug fix KappaRU -> KappaRV
1335        does not change verification/isomip but may change other setups
1336        (presumably constant KappaRU=KappaRV)
1337      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
1338    o pkg/obcs:
1339      - fixed some indexing bugs in obcs_seaice_sponge.F
1340      - added obcs relaxation subroutines for HSALT and HSNOW
1341      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
1342  o pkg/seaice:  o pkg/seaice:
1343    - add "multicategory" parameterization for snow in analogy to ice,    - add "multicategory" parameterization for snow in analogy to ice,
1344      default is off for now.      default is off for now.

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