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revision 1.1743 by mlosch, Mon Sep 24 15:07:38 2012 UTC revision 1.2003 by jmc, Thu May 29 17:10:53 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/sbo:
8      - update from Katherine Quinn: evaluate mass directly from density and SSH
9        (budget using Finite Volume method) instead of from bottom pressure.
10    o model/src & most packages:
11      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
12      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
13        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
14        "data.{pkg}" exist ; and leave the S/R (return) just after.
15      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
16        + call LAND_READPARMS from packages_readparms.F
17    o pkg/seaice:
18      - remove code that resets useThSice in S/R seaice_readparms and
19        replace by a warning in S/R seaice_check
20      - remove parameter MULTDIM, replace with nITD and runtime
21        parameter SEAICE_multDim (still hard-wired to nITD if
22        SEAICE_ITD is defined)
23    
24    checkpoint64x (2014/05/24)
25    o verification/lab_sea:
26      - update adjoint and TLM output following changes to pkg/salt_plume
27      - un-do the update after putting back local recip_Cp in few places.
28    o pkg/salt_plume: modifications by An Nguyen:
29      - add capability to do brine rejection (salt-plume) as function of
30        volume+tracers (instead of only salinity tracer).
31      - conserve volume by exchanging volume from each kLev to above to
32        accommodate in-coming brine volume
33      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
34      - switch KPP surf buoyancy due to brine forcing to 3-d
35        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
36      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
37      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
38        in East/West Arctic.
39    o pkg/sbo:
40      - incorporate modifications from Katherine Quinn to enable the use of sbo
41        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
42        output for future testreport verification (unfinished).
43    o pkg/atm_phys:
44      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
45        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
46        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
47    o pkg/seaice
48      seaice_calc_ice_strength.F: modify expression to avoid divisions
49        (affects truncation)
50      seaice_do_ridging.F: clean up the insectarium
51      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
52      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
53      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
54      - add some debugging information and error messages (warnings)
55    o model/src: modifications relatd to atmosphere p*:
56      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
57      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
58        of vertical profile tRef in geopotential background and anomaly.
59      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
60        and pkg/atm_phys.
61      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
62        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
63    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
64    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
65        not used right now, but can be used in BGC packages to fix conservation.
66    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
67        other packages too.
68    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
69        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
70    o model/src:
71      - since we have several heat capacity (even in model/src), define "recip_Cp"
72        as local variable (no longer in common block) to avoid any confusion.
73      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
74    o pkg/exf:
75      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
76        air density as function of air Temp, Humidity and atm pressure.
77    
78    checkpoint64w (2014/05/02)
79    o verification:
80      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
81        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
82        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
83        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
84        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
85    o model/src: for atmosphere in p* coords:
86      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
87      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
88        but not yet activated.
89    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
90      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
91      - this changes the results (but not for any verification experiment, because
92        none tests this), but avoids having an extra field in the restart files
93    o pkg/seaice: remove global variable TICE (not needed)
94      - replace by TICES or local variable where necessary (cost_seaice_test,
95        seaice_diagnostics_state)
96      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
97      - use specific read/write routines for reading and writing individual leves
98        of a multilevel field
99    o pkg/ctrl & model/inc:
100      - move additional anomaly fields of control vars (related to options:
101         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
102        from DYNVARS.h into new header file: CTRL_FIELDS.h
103    o pkg/seaice: some small modifications to the ridging code
104      - make fw2ObyRidge a global variable and add the freshwater flux to
105        seaice_growth
106      - pass actual thickness from seaice_prepare_ridging, so that it is
107        computed only in one place and compute it in the same way as in
108        seaice_growth
109      - initialise more fields in seaice_do_ridging that where cause floating
110        point exceptions over land
111    o pkg/seaice: preparations for ridging code and first real ridging code
112      - move most of "PART 1" of S/R seaice_growth into a new and separate
113        S/R seaice_reg_ridge that will both regularize the state variable after
114        advection call the actual ridging routine;
115      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
116        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
117      - remove ridging code from seaice_advdiff
118      - clean up remaining part 1 of seaice_growth in an attempt to make it
119        more readable (this is probably subjective)
120      - call seaice_itd_redist once in the initialisation phase to have the initial
121        conditions in the correct category
122      - finally: add new ridging routine for ITD code
123    
124    checkpoint64v (2014/04/11)
125    o pkg/ecco:
126      - add runtime parameters mdt[start,end]date[1,2]
127      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
128    o pkg/seaice:
129      - make deltaC a global variable, so that it can be used in ridging code
130      - first step towards ridging: introduce new routines that compute
131        ice strength based on ridging parameters
132      - add diagnostic for HSNOWITD
133      - add opnWtrFrac as a global variable (required for ridging scheme)
134    o pkg/salt_plume + pkg/seaice/seaice_growth.F
135      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
136        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
137    o verification/hs94.1x64x5:
138      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
139      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
140    o autodiff:
141      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
142        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
143        For now, only in pkgs used in verification/hs94.1x64x5.
144      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
145        which are specific to TAF/TAMC).
146      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
147        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
148        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
149      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
150        building mitgcmuv_ad (make adAll).
151    o pkg/ecco:
152      - cost_gencost_seaicev4.F:
153         reformulate proxy cost as function of sst and local param SEAICE_freeze
154         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
155      - add stop statement if old names siv4-[sst,vol] are used
156      - add snapshots + cost reports for atmospheric longwave
157      - remove factor 0.1 in front of wtau[u,v]
158      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
159         ALLOW_TMI_SST_COST_CONTRIBUTION
160    o pkg/atm_phys:
161      - add some diagnostics for Short-wave and for convection S/R.
162    o pkg/seaice/seaice_growth:
163      - fix a bug in the lateral melt parameterization for SEAICE_ITD
164        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
165      - rearrange loop order for better vector code in the same code block
166      - rewrite the floeDiameter formula to have fewer divisions
167      -  (miraculously) none of this changes the results of seaice_itd
168    o pkg/smooth:
169      - move param smooth2Ddiffnbt to pkg/ecco
170    o pkg/salt_plume:
171      - salt_plume_frac.F:
172         clean up local param names
173         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
174    o pkg/rw:
175      - add RS version of S/R READ_MFLDS_LEV.
176    o pkg/streamice:
177      - fix the restart test by writing/reading pickup_streamice files.
178    o pkg/seaice:
179      - refine checks for jfnk-related parameters
180      - comment out if statement with SEAICEuseIMEX parameter as long as there
181        is no IMEX code to avoid confusion and surprises
182    
183    checkpoint64u (2014/03/07)
184    o verification/MLAdjust:
185      - rename secondary test suffix:
186         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
187         0.leithD -> AhFlxF  + switch to flux-form
188         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
189         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
190    o pkg/mom_vecinv:
191      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
192        to be before mom_calc_visc.F)
193      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
194      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
195        this is simpler for the adjoint and for diagnostics.
196    o model/src + pkg/momentum:
197      - add input files for  2-D additional Western and Southern cell-edge wall
198         (e.g., to add "thin-wall" where it is =1).
199      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
200        using 2nd hFacZ that is computed from initial (fix domain) hFac
201      - known limitations of thin wall implementation: not yet coded for sigma
202        coords; not working with CD-scheme neither.
203    o pkg/seaice:
204      - rename recently introduced parameters from (wrong name) AB to
205        BDF (backward difference time discretisation)
206      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
207    o tools/adjoint_options:
208      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
209    
210    checkpoint64t (2014/02/01)
211    o pkg/ecco
212      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
213        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
214      - replace hard-coded record number and period which only work for monthly
215        with read-in runtime param that works for other periods (month,day,year)
216    o pkg/thsice
217      - corrected store directive fixes thsice adjoint gradient checks
218    o genmake2 & testreport:
219      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
220        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
221        Update testreport accordingly. No need to set "export OPENAD=true"
222        in adjoint_options/adjoint_oad anymore (will be removed later).
223    o pkg/shelfice:
224      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
225        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
226        so that surface forcing applies to k=kSurf if using pkg/shelfice.
227    o pkg/ctrl, pkg/grdchk, pkg/ecco:
228      - Changes to make GENARR more modular (i.e. invisible if not used)
229    o model/src/temp_integrate.F and salt_integrate.F
230      - re-include store directives that were removed on Dec 27th.
231    o model/src/external_forcing_surf.F
232      - add storage directives for EmPmR and PmEpR to avoid recomputation of
233        seaice_model in the adjoint that is problematic when seaice_model is
234        turned off in the adjoint. The resolved issue dated back to July when
235        EXTERNAL_FORCING_SURF call was moved.
236        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
237    o pkg/exf/exf_check.F
238      - fix a small bug again (originally found by Wentao Liu, now found again)
239      - streamline error output
240    o pkg/streamice and aim_v23:
241      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
242        Apple's /usr/bin/cpp knows what to do:
243        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
244        Target: x86_64-apple-darwin13.0.0
245    
246    checkpoint64s (2014/01/05)
247    o tools/adjoint_options:
248      - switch to fastopt.net TAF server (instead of default fastopt.de) for
249        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
250    o model/src:
251      - remove some unnecessary TAF storage directives in forward_step.F and
252        in dynamics.F (note: not always removed by TAF, e.g., double storage
253        of kappaRU,kappaRV in former version of dynamics.F).
254    o model/src & pkg/ptracers:
255      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
256        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
257        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
258      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
259      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
260      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
261    o useSingleCpuInput separates single-CPU input from single-CPU output;
262        for now only implemented for in exf_interp_read.F
263    o verification/advect_xy:
264      - fix missing EXCH call in local version of ini_salt.F and update output.
265    o momentum diagnostics:
266      - fix which deltaT is used in Total-Tendency diagnostics.
267      - fix typo in diagnostics for momentum tendency from AB.
268    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
269        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
270    
271    checkpoint64r (2013/12/08)
272    o verification/*/results:
273      - Update reference output of experiments that were passing with just 13 digits
274         (make it easier to detect future changes in results)
275    o model/src & pkg/ptracers:
276      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
277        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
278        to inside ptracers_integrate.F ; remove ptracers_advection.F
279    o coupling interface pkgs:
280        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
281      - change the config check to test the agreement of Ocean Depth
282        with ATM land/sea mask (instead of ATM orography);
283      - send to coupler the number of coupler time-steps to do for this run:
284        this allows to check for consistency and don't need anymore to be
285        specified in parameter file "data";
286      in coupler:
287      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
288      - improve report to log-file of config setting (pass log-file unit to few S/R)
289    o pkg/compon_communic:
290      - add coupling send/receive for non-tiled integer vector;
291      - add S/R to check and stop if any proc has an error (similar to
292        eesupp/src/stop_if_error.F but single thread and across Comm_World).
293    o pkg/exch2:
294      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
295        through list of all tiles my proc owns.
296    o model/src:
297      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
298        from rTrans) to simplify dependencies (no need to store rTrans anymore in
299        calling S/R); this affects AD results at machine truncation level:
300        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
301        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
302    o tools/build_options:
303      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
304    o coupling interface pkgs:
305        [compon_communic, atm_compon_interf & ocn_compon_interf]
306      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
307        to each S/R that needs it; remove un-used variables.
308      - change component tile registration (cpl_register.F in both compon_interf
309        and mitcomponent_tile_register.F) to pass the full list of tiles
310        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
311      - with pkg/exch2: adopt the same convention used for I/O to define mapping
312        towards coupler global array (unless W2_useE2ioLayOut=F):
313         a) can now use different tiling between atm & ocn comp.
314         b) no needs to modify the run-Off map when changing tiling (was needed
315            even if using the same tiling between atm & ocn).
316         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
317            full land tiles); not yet tested.
318      - check for valid mapping from comp. tile to coupler global array
319      - improve report of tile registration results to log file.
320    o pkg/exch2:
321      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
322        tile-registration (CPL_REGISTER);
323      - activate (un-comment) definition and setting of "W2_tileIndex" list to
324        store the local bi,bj indices of each tile;
325      - also print bi,bj in local report to log file;
326      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
327        Jun 2009 modif of pkg/exch2).
328    o testing on baudelaire:
329      - run 2 tests at a time: no significant slow down (since enough cpu) and
330        get the full set of test done earlier
331      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
332    o model/src/thermodynamics.F and routines called from it:
333      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
334        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
335        velocity (outp) by adding bolus velocity.
336      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
337        mass transport from velocity + lateral grid cell area
338      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
339      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
340     in thermodynamics.F
341      - remove k from thermodynamics.F and move it to temp_integrate.F
342        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
343        loop).
344      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
345        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
346        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
347        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
348      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
349        global_ocean.90x40x15, tutorial_global_oce_biogeo and
350        tutorial_tracer_adjsens (+ TLM output).
351    o tools/OAD_support and (verification/*/) code_oad:
352      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
353        module conversion ; remove unneeded CPP_EEOPTIONS.h.
354      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
355        version (closer to model/inc/CPP_OPTIONS.h).
356    o model/src:
357      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
358        retired list of parameters (routine FREEZE has been replace by surface
359        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
360    o pkg/gmredi:
361      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
362        velocity (same scheme but affects machine truncation) for GM_AdvForm.
363      - update output of FWD experiments: front_relax.bvp,
364        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
365    
366    checkpoint64q (2013/11/17)
367    o verification:
368      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
369        tutorial_global_oce_biogeo and global_ocean.90x40x15.
370      - generate new output (growth & melt) for seaice_itd experiment after
371        updating the input pickup_seaice files (previously wrong).
372    o pkg/cost:
373      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
374        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
375        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
376          cannot be applied to var in common block).
377        o allows to get results independent of tile-per-proc setting (if using
378          slower GLOBAL_SUM_SEND_RECV option).
379      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
380        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
381        forward gradients: update output).
382      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
383        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
384    o pkg/mom_common:
385      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
386        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
387        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
388        ensure that all field value that are used are set.
389    o tutorial_deep_convection (smag3d):
390      - add missing scaling in mom_calc_smag_3d.F;
391      - set smag3D_coeff in input.smag3d such that results do not change.
392    o pkg/dic:
393      - change dic_cost.F to compute cost on each tile first and then apply
394        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
395        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
396      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
397    o eesupp/src & pkg/mdsio:
398      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
399        (from pkg/mdsio) since they are no longer used for tape IO.
400      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
401        (+ keep a copy in pkg/atm_ocn_coupler).
402    o verification/isomip:
403      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
404    o tools/build_options:
405      - optfile linux_amd64_ifort11, fast (no ieee) case:
406        to get a working restart for all experiments, add "-fp-model source"
407        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
408    
409    checkpoint64p (2013/10/20)
410    o pkg/autodiff:
411      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
412        criteria, return to simple (default) tape IO format.
413    o pkg/mdsio (+ eesupp/src):
414      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
415        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
416      - fix globalFile and singleCpuIO options using simpler global mapping.
417      - new pairs of scatter/gather vector S/R (one for each type, generated from
418        template) corresponding to simpler global mapping.
419      - adread_write.F: switch to new S/R (but leave old calls commented) and write
420        to globalFile when parameter globalFiles is set to True.
421      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
422    o pkg/autodiff:
423      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
424        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
425        missing, just add a STOP if array type do not match.
426    o pkg/exf:
427      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
428         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
429         and rename array obsSIce to exf_iceFraction.
430    o tutorial_deep_convection:
431      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
432        for now all in this exp. code dir.
433      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
434        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
435    o eesupp/src:
436      - added SINGLE_DISK_IO option because reading of parameter files on
437        very large number of processors did not work with existing set-up
438    
439    checkpoint64o (2013/09/25)
440    o pkg/atm_phys & atm_compon_interf:
441      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
442    o tools/build_options:
443      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
444        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
445        remove CPP setting (was identical to genmake2 default).
446    o pkg/gmredi & model/src: Some updating and work done on the residual model.
447      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
448      - fixed up the calculation of the eddy stress and how it is added to the
449        external forcing via taueddy_external_forcing.F
450      - at the moment, it is very experimental and only works with the variable eddy
451        diffusivity calculated in gmredi_k3d.F
452    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
453        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
454    o testreport (& tools/do_tst_2+2):
455      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
456    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
457      - remove CPP='cpp -traditional -P' (this is genmake2 default)
458      - add switch (for big setups) to use 'medium' memory-model (but leave it
459        commented out for now). Note: needed with FC 19 to compile big setups.
460    o pkg/atm_compon_interf:
461      - regroup per field origin (model & pkgs) the coupling storage routines
462         (which accumalate in time each coupling field)
463      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
464        update accordingly + simplify aim_do_physics.F
465    
466    checkpoint64n (2013/08/26)
467    o pkg/bbl:
468      - update formulation to reduce dispersion of tracer properties in bbl
469      - replaced horizontal and vertical transport parameters with velocities
470      - changes results for verification/global_with_exf.yearly
471    o verification/halfpipe_streamice:
472      - change to matrix construction; update both Fwd & AD output.
473    o verification/tutorial_tracer_adjsens:
474      - OpenAD test: switch to vector-invariant momentum since fluxform with
475        rStar causes problems with OpenAD; update output.
476    o tools:
477      - genmake2: define a common prefix for all temp-file names ; move them
478        to local /tmp disk (but would be easy to move them back);
479      - xmakedepend: apply the same switch for temp-files.
480    o pkg/offline:
481      - changes for use with rStar (NLFS): assume that we continue to provide
482        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
483        output files) and apply r* scaling at each time-step (function of the time
484        varying Eta field); use normal pickup files (needed for restart with NLFS).
485    o adjoint with OpenAD:
486      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
487        package openad.  This package has to be compiled for all runs with OpenAD
488        instead of specifying code_oad_all as a modification directory.
489      - link the fortran templates from tools/OAD_support to the build directory
490        for preprocessing to avoid conflicts between different setups compiled
491        simultaneously and simplify cleanup.
492    o pkg/exf:
493      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
494        main model or other pkgs are exchanged in EXF_MAPFIELDS).
495    o model/src:
496      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
497        (similar to do_fields_blocking_exchanges.F).
498    o tools/genmake2:
499      - remove TAF output src code just before calling staf (when not doing a fresh
500        built, will stop if things go wrong with staf).
501      - fix target "adobj" (left from TAF version-2 transition)
502    o pkg/diagnostics:
503      - add a parameter to track the status of pkg/diagnostics activation;
504        this replace/extend the use of logical param "settingDiags" (to check
505        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
506        New S/R to print error message and stop when pkgStatus is not right.
507      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
508    
509    checkpoint64m (2013/08/13)
510    o model/inc:
511      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
512        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
513    o pkg/kpp & aim_v23:
514      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
515    o pkg/seaice:
516      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
517        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
518      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
519    o eesupp/src:
520      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
521        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
522    o switch to TAF version-2:
523      - add flow directives to "freeze" naming convention for ad-routines that
524        are used in I/O routines of adjoint state and associated common blocks
525        that are used in adcommon.h (backward compatible with version-1)
526      - update all ad-optfiles (in tools/adjoint_options + few local to some
527        verification exp) to switch to latest TAF version (currently 2.5.5);
528        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
529        out except for diva).
530      - the major change with TAF version-2 is that both the differentiated
531        routines and the forward routines (new) are returned as part of the TAF
532        output source code. Update genmake2 accordingly.
533      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
534        with version-2 when compared to TLM or FWD gradient); other experiments
535        output show minor changes (machine truncation level); update the few AD &
536        TLM output with 12 matching digits only (some prior to version-2 switch).
537    
538    checkpoint64l (2013/08/05)
539    o model/src:
540      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
541      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
542        when using TAF but only if using OpenAD.
543    o pkg/mom_common+fluxform+vecinv:
544      - always set horiz. viscosity arrays to background value before calling
545        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
546        only when using variable horiz. viscosity (useVariableVisc=T);
547      - simplify mom_vecinv.F (only 1 block for momViscosity).
548    o pkg/mom_common: variable horiz. viscosity in NH code
549      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
550        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
551      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
552        useBiharmonicVisc & useVariableVisc.
553      - fix old bug (already in 1rst implementation of variable horizontal viscosity
554        in calc_gw.F, version 1.27, 2006/06/20):
555        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
556        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
557      - change background horiz viscosity in vertical momentum (gW) to always be
558        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
559        any type of variable viscosity, e.g., viscAh/4Grid)
560      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
561        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
562        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
563        default viscAh,viscA4 is zero).
564    o model/src:
565      - extend length of drC & recip_drC from Nr to Nr+1.
566    o Divided Adjoint (DIVA) with MPI:
567      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
568      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
569        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
570    
571    checkpoint64k (2013/07/23)
572    o tools/OAD_support:
573      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
574        and remove it from genmake2.
575    o tools/build_options:
576      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
577        MPI_HEADER_FILES list (let genmake2 find the missing headers)
578    o verification/halfpipe_streamice:
579      - change to driving stress formulation; update both Fwd & AD output.
580    o tools/genmake2 and Divided Adjoint with MPI:
581      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
582      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
583      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
584        Makefile, which is set by genmake2, and check which mpi-headers are needed.
585        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
586      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
587    o testreport:
588      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
589        perform additional runs (number of additional runs is "add_DIVA_runs" taken
590        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
591    o verification/lab_sea (AD test):
592      - change to test Divided Adjoint Run in this set-up (both standard AD test
593        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
594    o pkg atm_ & ocn_compon_interf:
595      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
596        staggerTimeStep implementation) and disable (retired) corresponding
597        parameter.
598    o pkg/offline:
599      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
600      - add S/R OFFLINE_CHECK to print offline parameter summary
601        and stop if loading a file that is not used;
602      - enable to calculate GMRedi tensor, KPP mixing and convective index
603        when the corresponding file(s) is/are not specified (but pkg is used).
604      - comment out resetting of monitorFreq (to endTime) since it still useful
605        for monitoring CFL numbers and checking offline fields.
606    o OpenAD:
607      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
608        smaller standard output) and generate new (smaller) output (on baudelaire
609        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
610    o model/src:
611      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
612        (where external_forcing_adjust was called) and change list of arguments;
613      - merge external_forcing_adjust.F into external_forcing_surf.F
614      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
615        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
616        previously in file "balance_relax.F", now removed); remove corresponding
617        arrays in FFIELDS.h.
618      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
619        a hack for getting back surfaceForcingS (loaded from file) when using
620        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
621      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
622        (was getting only 11 digits for AD-grad, due to different truncation
623         error in AD code).
624    
625    checkpoint64j (2013/07/04)
626    o pkg/offline:
627      - to enable the use of other features with pkg offline (e.g., obcs),
628        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
629      - comment out "allowFreezing" (now active) in 2 offline testing exp.
630    o pkg/exf ALLOW_RUNOFTEMP
631      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
632      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
633      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
634    o pkg/atm_phys:
635      - allows to add some damping on uVel,vVel (strength only function of k).
636    o verification, ad-tests:
637      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
638        global_ocean_ebm and offline_exf_seaice.thsice.
639    o verification/halfpipe_streamice:
640      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
641        flux input boundary conditions to be ignored; a fix for this bug changed
642        verification results for forward test.
643      - add adjoint test.
644    o pkg/ptracers:
645      - allow to restart without SOM pickup (resetting SOM to zero).
646    o pkg/gmredi:
647      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
648      - It uses mixing length theory and suppression by steering level effects to
649        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
650        to JPO, for more details).
651      - It also uses the diffusivity to calculate an eddy induced streamfunction
652        based on a PV closure (rather than a buoyancy closure as in GM).
653      - New files added to pkg/gmredi:
654        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
655          induced overturning streamfunction (called from gmredi_calc_tensor)
656        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
657          for use in gmredi_k3d
658        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
659          the eddy diffusivity
660    
661    checkpoint64i (2013/06/18)
662    o pkg/cheapaml:
663      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
664        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
665        with pkg/cheapaml.
666    o utils/python: add subpackage for cubed sphere function, first example is
667        simple cs.pcol to plot 2D fields on a map
668    o pkg/streamice:
669      - This is a new package in MITgcm, which solves dynamic equations for ice
670         sheets and ice streams
671      - At the moment it is independent of atmosphere/ocean dynamics, or any
672        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
673        ed that this will change)
674      - There is a new verification exercise that tests it, halfpipe_streamice,
675        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
676        rectangular embayment
677      - halfpipe_streamice is forward-only for now, will have TAF test soon
678      - for questions, email dgoldber@mit.edu
679    o pkg/thsice:
680      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
681        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
682      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
683         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
684      - allow precip from pkg/cheapaml to make snow over seaice.
685    o pkg/cfc:
686      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
687      - remove atmos CFC 2-D arrays from common bloc (now local variables)
688      - change some hard-coded constant to run time parameter for reading and
689        and interpolating atmospheric CFC ; keep same default as previously.
690      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
691      - put arguments in standard order: myTime, myIter, myThid
692      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
693        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
694      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
695      - new routine to print summary of CFC params and check for consistency.
696    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
697      similar to thsice_advdiff.
698      Note that for the B-grid case the routine parameters uc/vc are overwritten.
699    o pkg/cfc:
700      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
701        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
702      - fix interpolation of atmphspheric CFC between Sorthern and Northern
703        hemisphere value.
704    o pkg/seaice:
705      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
706    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
707                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
708      - requires an additional time level that is stored in the pickup
709      - you can start with AB2 from a pickup without this time level with
710        pickupStrictlyMatch = .false.
711    
712    checkpoint64h (2013/05/26)
713    o pkg/cheapaml:
714      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
715        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
716      - consistent treatment of uWind,vWind location: assume everywhere in
717        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
718        (Note: was already the case for Tair,Qair advection);
719        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
720      - compute diabatic forcing only in the interior (excluding overlap regions)
721      - fill in array "Qsw" (for short-wave heating);
722      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
723        before any update (consistent with MITgcm state var diagnostics);
724      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
725        non periodic ; + adjusted for uWind,vWind (C-grid).
726    o pkg/seaice:
727      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
728        add explicitly pkg/exf in experiments that currently use pkg/seaice.
729      - allows to compile pkg/seaice without pkg/exf.
730    o tools/OAD_support:
731      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
732        of array "ourStepOf" in function rvNextAction (revolve.F90).
733    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
734      - change pkg name (to be used with other atmospheric physics pkg)
735        but by-pass CVS when making the new pkg so that we keep the CVS history.
736    o pkg/offline:
737      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
738        (previously called from pkg/dic_surfforcing_init.F)
739    o model/src:
740      - re-order sequence of calls within packages_init_variables.F, using
741        standard order, except for:
742         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
743         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
744    o new pkg: atm_phys
745      - add entry point and source code (previously in contrib
746          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
747        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
748      - re-order sequence of calls within packages_readparms.F,
749         packages_init_fixed.F and packages_write_pickup.F
750        (but skip packages_init_variables.F because of TAF issues).
751      - update contrib/*/atm_gray/ experiment.
752    o pkg/seaice (ITD code):
753      - simplify and fix the writing of pickup-files for ITD case
754    o pkg/seaice (ITD code):
755      - introduce floe size dependent lateral melt for ITD case;
756      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
757      - update seaice_itd experiment main output.
758    o pkg/thsice:
759      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
760        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
761        changed accordingly pkg/atm2d.
762    
763    checkpoint64g (2013/05/01)
764    o pkg/exf ALLOW_RUNOFTEMP
765      - if defined,  river and glacier runoff temperature can be read-in from
766        runoftempfile; runoftempfile needs to have same format as runofffile
767    o pkg/thsice (& pkg/bulk_force):
768      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
769        for energy content of Precip + RunOff & Evap (like with pkg/exf).
770      - change computation domain to always be the interior (without overlap).
771      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
772    o verification/tutorial_global_oce_biogeo:
773      - add preliminary OpenAD setup (still has problems)
774    o pkg/seaice:
775      - turn some parameters for choosing the convergence criterion of
776        the inexact Newton method (JFNK) into runtime parameters for convenience
777      - clean up seaice_calc_viscosities.F: remove/retire two options for
778        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
779        the results of lab_sea/input because a division has been replaced by
780        a multiplication with the reciprocal (sumNorm)
781      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
782        convergence of solver (changes results, of course), and to test some
783        new features
784    o model/src:
785      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
786      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
787      - move forcing adjustment (balancing surface forcing) in specific S/R
788        where might also be applied exchanges (if needed) to forcing arrays.
789    o pkg/shelfice:
790      - allow to specify the Ice-Shelf mass per unit area (instead of
791        shelficeLoadAnomaly) and do the conversion from one to the other
792      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
793        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
794        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
795        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
796      - update isomip experiment forward output (get machine truncation error
797        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
798    o verification/offline_exf_seaice:
799      revise data.seaice in input.thermo and input_ad and update results accordingly
800        HO = 0.2, SEAICE_areaLossFormula = 2,
801        SEAICE_growMeltByConv = .TRUE.,
802        SEAICE_doOpenWaterMelt = .TRUE.,
803      Improve consistency with input.thsice and fix the spurious 500m ice corners
804    o verification/global_ocean.cs32x15:
805      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
806        in icedyn (thsice+seaice-dyn) test and update output.
807    o verification/offline_exf_seaice:
808      - adjust list of tested variables (with testreport) and update
809        standard test output with better slection of monitored fields.
810    o pkg/cd_code:
811      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
812        experiment lab_sea.hb87
813    o tools/genmake2:
814      - change default makedepend from the system default to tools/xmakedepend:
815        When no makedepend is specified, select tools/xmakedepend it the test pass,
816        otherwise select the system default (if exist and pass the test) or
817        try to build cyrus-makedepend ; stop if none of the 3 works.
818    o pkg/exf & pkg/thsice:
819      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
820        for energy content of Precip + RunOff & Evap. Assumes:
821       1) Rain has same temp as Air.
822       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
823       3) Run-Off comes at the temp of surface water (with same Cp)
824       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
825        put directly into Latent Heat flux & should use water-vapor heat capacity.
826       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
827        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
828    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
829        (compile when SEAICE_ALLOW_JFNK is defined)
830    o pkg/thsice:
831      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
832        implementation): move THSICE_AVE call after the advection (called directly
833        from thsice_do_advect.F).
834    o verification/global_ocean.90x40x15 and OpenAD:
835      New experiment for OpenAD is identical to the one in input_ad except that
836        multiDimAdvection=.FALSE.,
837      There is still an issue with this.
838    o pkg/thsice:
839      - account for ice velocity (ocean relative velocity) in turbulent heat flux
840        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
841        and offline_exf_seaice (main test).
842    
843    checkpoint64f (2013/03/31)
844    o verification/OpenAD:
845      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
846    o verification/isomip, pkg/shelfice and OpenAD:
847      - add OpenAD setup to this exp and make shelfice package work with OpenAD
848    o verification/tutorial_global_oce_biogeo:
849      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
850    o verification/offline_exf_seaice:
851      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
852    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
853      - add OpenAD setup to this exp and make ptracers package work with OpenAD
854    o pkg/seaice/seaice_evp.F:
855       mask the asymmetric contribution of the ice-ocean stress (when
856       the turningAngle is non-zero) over open water to avoid stripes
857       in the EVP-solutions after many EVP-substeps. This does not change
858       the verification experiment (because turningAngle=0 in that experiment),
859       but will affect other EVP solutions with turningAngle.ne.0
860    o verification, AD & TLM output:
861      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
862        additions and multiplications which affect results at machine truncation
863        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
864        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
865        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
866        digits of matching.
867    o pkg/seaice:
868       modify lsr-algorithm so that it vectorizes AND converges by using a
869       "zebra" method: split vector loop into two with step size 2; this
870       solves a general convergence problem for the JFNK solver on a vector
871       computer. It has the potential to even improve convergence for
872       non-vector machines, but it does change the results so it is turned
873       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
874       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
875    
876    checkpoint64e (2013/03/05)
877    o pkg/ecco and several verification experiments:
878       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
879       from ecco package, and revert to unified routine in model/src/
880       Adjust verification experiments accordingly, especially gloal_oce_llc90
881       Should conclude long-standing work by Gael to reconsile the_main_loop with
882       ECCO and will enable OpenAD's revolve loop in ECCO setup.
883    o pkg/generic_advdiff:
884      - implement compressible flow method for multi-dim advection (similar to
885        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
886        TAF generates many recomputations) to use it; no yet coded with implicit
887        vertical advection.
888      - change experiment advect_cs (new output) and advect_xy (same output)
889        to test compressible flow multi-dim advection.
890    o pkg/generic_advdiff:
891      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
892        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
893    o pkg/seaice:
894      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
895        bug affects two verification experiments (lab_sea and lab_sea.hb87),
896        recover old (wrong) results by setting noSlipFac = 2. in
897        seaice_calc_strainrates.F;
898      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
899      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
900        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
901      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
902    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
903      - new subroutines seaice_lsr_tridiagu/v
904      - introduce loop bounds i/jmin/max to be able to use a restricted
905        additive Schwarz method, but not used for now.
906      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
907      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
908    o OpenAD support
909       Reorganize S/R call for overall time-stepping loop to facilitate
910       OpenAD revolve loop replacement
911       (new S/R main_do_loop.F)
912    o model/src:
913      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
914      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
915        ADAMS_BASHFORTH2.
916    o pkg/cheapaml:
917      - add new parameter (default=F, same as before) to disable full domain
918        (including land) periodicity in X & Y dir.
919      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
920        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
921        into single S/R CHEAPAML_TIMESTEP.
922    
923    checkpoint64d (2013/02/17)
924    o pkg/monitor (angular momentum):
925      - do not add Eta contribution to the total AM if using rigid-lid;
926      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
927      - horizontal discretisation: compute Zonal wind contribution separately for
928        each component (instead of from cell centered averaged) and use the 4
929        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
930      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
931        FreeSurf) if using vectorInvariant momentum.
932    o model/src (horizontal grid):
933      - move initialisation of all horizontal grid arrays to null value
934        from specific horizontal grid S/R to main S/R INI_GRID;
935      - add 2 new arrays to project model C-grid velocity on to zonal direction
936        (similar to AngleCosC & -AngleSinC but at U and V point location) and
937        compute them in S/R CALC_GRID_ANGLES.
938    o pkg/seaice: replace a hard coded parameter by a runtime parameter
939        SEAICE_JFNK_tolIter
940    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
941        preconditioner for JFNK (run LSR into the overlaps as far as possible,
942        i.e OLx/y-2, but overwrite the solution in the overlaps)
943      - extend loop range in seaice_calc_viscosity
944      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
945      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
946      - slightly modify loops in tridiagonal solver lsr-preconditioner
947      - by default remove the extra exchange in seaice_preconditioner with a
948        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
949      - modify offline_exf_seaice so that old results without RAS are reproduced
950        for output.dyn_jfnk.txt
951      in seaice_fgmres.F (unrelated to RAS)
952      - add a cpp-flag option for a re-ordered mapping (potentially more
953        efficient), but because this changes the results, turn it off by
954        default
955      - replace the save statement by local common blocks
956    o utils/matlab:
957      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
958      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
959        instead of local script "load_cs.m".
960    o pkg/seaice:
961      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
962        to the scalarProductMetric and the unrolling. By chance this does not
963        change the verification experiment, because of the particular domain
964        decomposition
965    o pkg/diagnostics:
966      - change default missing_value from UNSET_RL to -999.
967    o pkg/layers: improve vectorization of layers_fluxcalc.F
968      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
969        time spent in this routine by more than a factor of 3 on an NEC-SX8
970      - step 2: replace search algorithm by a bisection algorithm found in
971        Press et al. Numerical Recipes in Fortran. This algorithm can be
972        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
973        For now, use this algorithm only for TARGET_NEC_SX defined.
974      - moved the search algorithm into a separate subroutine, that is kept
975        within the same file for automatic inlining.
976      - modified catching potential errors
977    o pkg/ecco:
978      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
979    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
980      - modifications for ALLOW_GENTIM2D_CONTROL
981      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
982      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
983      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
984      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
985    o model/src:
986      - account for moist thermodynamics in (dry) potential temperature equation;
987        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
988        and cpl_aim+ocn.
989      - also switch to standard compiler (gfortran, was using ifort previously)
990        for fizhi-cs experiments reference output.
991    o pkg/ctrl:
992      - 1st step toward generic time-varying control variable (2D) via CPP option
993        ALLOW_GENTIM2D_CONTROL
994      - note new namelist ctrl_nml_genarr in data.ctrl
995    o verification/global_ocean.cs32x15:
996      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
997        thsice calling sequence and update "output.icedyn.txt" output file.
998    o pkg/ptracers:
999      - from Ryan A.: code to allow to restart a tracer at regular time interval
1000        specifying a reset frequency and a reset-phase (for each tracers).
1001    o pkg/thsice:
1002      - implement new sequence of calls for thsice+seaice:
1003          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
1004          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1005      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1006        in CPP_OPTIONS.h) to recover old sequence;
1007      - update diagnostics for Intermediate State thsice diagnostics: now filled
1008        just before advection (instead of just after advection in old sequence);
1009      - update output of experiment offline_exf_seaice (standard test);
1010      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1011        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1012    o pkg/aim_v23:
1013      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1014      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1015      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1016      - Implement new sequence of calls for seaice advection (with thsice and
1017        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1018        was done before); change aim_do_physics.F (split the bi,bj loops block);
1019      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1020    o pkg/thsice:
1021      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1022        where just seaice diffusion is used without seaice-dynamics.
1023    
1024    checkpoint64c (2013/01/18)
1025    o pkg/seaice:
1026      - add a parameter JFNKres_tFac that can replace JFNKres_t
1027        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1028      - add a line search option to the JFNK solver
1029      - move update of u/vIce and computation of initial residual into a separate
1030        routine (same file); makes the code a little easier to read (?)
1031      - the line search requires computation of the residual and for some reason
1032        I cannot do the update of u/vIce at the beginning of the Newton loop
1033        without changing the results, so we move computation of the new residual
1034        also to the end of the Newton loop, even without the line search
1035    o pkg/mdsio:
1036      - write missing value (corresponding to undefined array value) to meta files;
1037        skip this if missing value is one (UNSET_RL would be a better value for the
1038        case of undefined missing value but it's current the default missing-value);
1039        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1040    o pkg/exf & thsice:
1041      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1042        diagnostics) even when SHORTWAVE_HEATING is #undef;
1043    o verification/cfc_example:
1044      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1045        illustrate how to use it).
1046    o verification/offline_exf_seaice:
1047      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
1048        files to only one time-record.
1049      in input.thermo: narrow the 2 bands of low initial ice-concentration near
1050        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
1051        snapshot output; same mcPheePiston value as in thsice with
1052        surf-current=0.2m/s.
1053      in input.thsice: similar set-up as in input.thermo (channel with same seaice
1054        initial conditions).
1055    o verification/cfc_example:
1056      - update file "data" with more standard choice (default rotationPeriod,
1057        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
1058        set deltaTFreeSurf to deltaTtracer) and update the output.
1059    o pkg/layers:
1060      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
1061      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
1062    o verification/offline_exf_seaice:
1063      - set all {field}period to zero for constant-in-time forcing (not tested
1064        anywhere else).
1065    o verification/offline_exf_seaice:
1066      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
1067      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
1068    o model/src:
1069      - implement Finite-Volume method for (hydrostatic) presure gradient
1070        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
1071    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
1072      - In order to be compatible with the default EVP code, this requires changing
1073        the EVP code around a little; and because any small change immediately
1074        breaks the lab_sea.hb87 verification experiment, the reference output is
1075        updated two times (each time the remaining aggrement was only 2 digits):
1076        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
1077        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
1078        The adjoint test lab_sea.evp also needed to be updated.
1079      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
1080        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
1081        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
1082        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
1083        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
1084        kept obscure, because I need to test it a little more.
1085    o pkg/cheapaml:
1086      - fix few incorrect type (_RL/_RS) in subroutine calls.
1087    o pkg/seaice:
1088      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
1089        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
1090    o model/src:
1091      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
1092        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
1093        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
1094    o pkg/cheapaml:
1095      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
1096        update output of experiment cheapAML_box.
1097      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
1098        and set them only in one place (cheapaml_readparms.F).
1099      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
1100      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
1101        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
1102    o model/src/the_main_loop.F:
1103      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
1104    o pkg/seaice:
1105      - remove legacy branch code.
1106      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
1107    o verification/*/code*/SEAICE_OPTIONS.h:
1108      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
1109        SEAICE_CAP_HEFF).
1110    o pkg/cheapaml:
1111      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
1112        to load new forcing fields.
1113      - add missing "_d 0" where it's needed; + some editing (improve indentation).
1114      - remove switch to "-r8" compiler option (no longer needed) in verification
1115        cheapAML_box, keep same output (small trucation error differences).
1116    o verification/offline_exf_seaice:
1117      - add thermodynamics only test.
1118    o verification/cheapAML_box:
1119      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
1120        keep same output (same 14 digits for cg2d).
1121      - switch on "-r8" compiler option (some numerical values are missing
1122        the "_d 0") and update output (only 6 digits for cg2d were preserved).
1123    
1124    checkpoint64b (2012/12/24)
1125    o pkg/cheapaml:
1126      - remove un-used variables (Qnet,EmPmR) from pickup files.
1127      - store tendency of advected variables into cheapaml pickup file
1128        and fix the AB-2 restart.
1129    o verification/offline_exf_seaice and lab_sea adjoint:
1130      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
1131      - switch to 4 time steps in offline, consistent with lab_sea.
1132      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
1133      - update results after change of experiment seaice.
1134    o pkg/seaice:
1135      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
1136        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
1137        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
1138        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
1139    o model/src:
1140      - add run-time parameter to select CG2D solver minimum-residual solution
1141        (in case of a poor convergence).
1142    o pkg/seaice/seaice_lsr.F
1143      - move calculation of matrix coefficients into new
1144        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
1145        file; the main purpose of this change is to be able to reuse the code
1146        in S/R SEAICE_PRECONDITIONER
1147      - modify the computation of the residual so that the mass of sea-ice
1148        is not used twice; this simplifies the calculations, but since
1149        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
1150        not tested in testreport---this does not affect the testreport results.
1151    o verification/seaice_obcs:
1152      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
1153        verification/lab_sea/input.salt_plume; changes results/output.txt*
1154    o model/src:
1155      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
1156    o pkg/seaice:
1157      - improve description of parameters in seaice_fgmres.F and start
1158        cleaning up the code
1159      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
1160        second argument
1161      - add a metric based on grid cell area to SEAICE_SCALPROD; update
1162        results of offline_exf_seaice.dyn_jfnk
1163      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
1164    o pkg/aim_v23:
1165      - fix an other bug in dissipation heating (grid-cell area was missing).
1166    o model/src + pkg/seaice:
1167      - add global (multi-tile) linear solver for pair of tri-diagonal system
1168        along X and Y lines, respectively for U and V component.
1169        Note: 1) MPI and cube-exchange not yet coded.
1170            2) probably not accurate for poorly conditioned / large size problem.
1171      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
1172        default: not compiled and not used.
1173    o pkg/seaice:
1174      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
1175        introduce bi/bj loops and use global_sum_tile_rl instead of
1176        mpi_allreduce in seaice_fgmres.F
1177      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
1178      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
1179      - add a verification experiment for JFNK in offline_exf_seaice
1180    o verification:
1181      - change (for now, only fwd test) offline_exf_seaice experiment:
1182        use a re-entrant channel with idealized coastline (trapezoidal shape)
1183        at southern boundary to explore seaice dynamics and thermodynamics
1184        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
1185        secondary test (input.thsice) use thermodynamics only with SST relaxation.
1186      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
1187    o pkg/exf:
1188      - disable "sstExtrapol" when Nr=1
1189    o verification:
1190      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
1191        to test pkg/cheapaml.
1192    o pkg/aim_v23 & pkg/shap_filt:
1193      - fix dissipation heating (erroneous gravity multiplication factor).
1194    o pkg/seaice:
1195      - remove unused field pressPre from jfnk solver
1196      - rename two subroutines in seaice_preconditioner.F
1197    o eesupp/src:
1198       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
1199    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
1200       - remove wrong parts of the rhs and the lhs (were in there
1201         because I did not understand the concept of this preconditioner)
1202       - add an exchange between u- and v-sweep. This increases communication
1203         by a factor of two but improves the convergence of jfnk. Ideally,
1204         one would like the u- and v-sweep to be independent. So far within
1205         undocumented ifdefs
1206       - reorganize the extra computations for printing the residuals
1207    o tools/genmake2:
1208      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
1209        since it's not necessary (and was preventing to use MNC in some cases).
1210    
1211    checkpoint64a (2012/11/16)
1212    o pkg/autodiff:
1213      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
1214        autodiff_readparms.F no longer depends on calling order (within
1215        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
1216        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
1217        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
1218    o pkg/obcs:
1219      - adding tidal velocity forcing capability to obcs
1220        for usage example, see verification/seaice_obcs/input.tides
1221    o pkg/seaice:
1222      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
1223        SEAICE_LSRrelaxU/V
1224      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
1225    o pkg/aim_v23:
1226      - implement heating from friction (bottom friction and stratospheric drag).
1227    o pkg/shap_filt:
1228      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
1229        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
1230    o model/src:
1231      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
1232        time-constant addMass field from file (addMassFile);
1233      - support for heating due to friction (and Kinetic Energy dissipation):
1234        add option, run-time switch and 3-D field array + support code ; each pkg
1235        or S/R can add heating contribution (if there is a sink of KE); the sum is
1236        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
1237    o pkg/seaice:
1238      - complete merge of ITD code into seaice_growth.F
1239        from MITgcm_contrib/torge/itd/code/
1240        no verification so far, but Torge Martin tested
1241        "1-D test case and Beaufort set up;
1242        deliver okay results after 1 model year."
1243      - complete merge of SEAICE_SIZE.h into all relevant routines
1244      - move computation of eta at Z-points into calc_viscosities
1245        + introduce global field etaZ
1246        + add different methods for computing etaZ, for now the old
1247          method (simple averages of eta to Z-points) is hardwired
1248        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
1249          seaice_preconditioner
1250      - simplify computations for SEAICE_ZETA_SMOOTHREG
1251      - seaice_preconditioner:
1252        + replace one remaining press by pressLoc (mistake)
1253        + adjust printing of residuals
1254      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
1255        + add (SEAICE.h) and rename some counters (initiliased in
1256          seaice_init_fixed.F)
1257        + add _BEGIN/END_MASTER (myThid)  around print statements
1258        + print total number of iterations and failures over SEAICE_monFreq
1259          interval to STDOUT
1260      - move control over output-messages by fgmres to seaice_jfnk to save
1261        some operations
1262      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
1263        in order to make restarts with sol .ne. zero (fgmres with restarts)
1264        (seaice_jfnk.F, seaice_fgmres.F)
1265      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
1266        a serious convergence problem when open boundaries are involved
1267    o pkg/ggl90: fix computation of control volumes for the case of
1268      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
1269      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
1270    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
1271    o pkg/autodiff
1272      - Add inAdMode switch for SEAICEuseDYNAMICS:
1273        SEAICEuseDYNAMICSinAdMode
1274        (extend logic in ADAUTODIFF_INADMODE_SET)
1275    o pkg/seaice
1276      - Step 1 of merging ice-thickness distribution (ITD) code from
1277        MITgcm_contrib/torge/itd/ (author: Torge Martin)
1278        The code implements concept laid out in Thorndike et al. (1975);
1279        code is enabled via CPP flag SEAICE_ITD
1280        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
1281        code is not complete yet!!
1282      - SEAICE_SIZE.h now included in almost all seaice routines
1283    o verification (using seaice):
1284      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
1285        global_ocean.cs32x15.seaice ; update results.
1286      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
1287      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
1288        offline_exf_seaice (previously compiling B-grid).
1289    o pkg/exf:
1290      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
1291        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
1292        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
1293    o pkg/layers (adjust changes from Sept 19):
1294      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
1295        this allows to remove "layers_maxNum" dimension from all layers arrays.
1296    o pkg/layers (adjust changes from Sept 19):
1297      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
1298      - snap-shot extended to all type of layers (not just the 1rst type);
1299      - remove layers variables when corresponding CPP option is undef.
1300    o pkg/layers:
1301      - rename pkg/layers variable and add new output (layer exist & un-weighted
1302        velocity in layer)
1303    o pkg/seaice:
1304      - simplify (?) ocean-drag coefficent computations by using
1305        the same routine in all three solvers (saves some code lines)
1306      - remove global fields DRAGA and DRAGS from C-grid code and
1307        declare them locally in lsr.F (the only place where they are
1308        still used)
1309      - update AD output of lab_sea.evp (very sensitive anyway).
1310    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
1311      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
1312      and SEAICEuseJFNK=.true. A few things to note:
1313      - involves a FGMRES, that is parallel but very inefficient,
1314        because of many scalar products (global sums) in the Gram-Schmidt
1315        orthogonalization method. Needs to be replaced. Original code
1316        from J.-F. Lemieux
1317      - preconditioner for FGMRES is a stripped down version of LSOR
1318      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
1319        preconditioner. For the preconditioner, the default is set to 10.
1320      - Jacobian times vector is computed with finite differences
1321      - marginally related to JFNK-solver: add a smooth regularization for
1322        zeta with tanh that will improve convergence (Lemieux and Tremblay,
1323        2009) for any implicit solver (not implemented for EVP because EVP
1324        does not need this regularization in the first place). Define
1325        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
1326    o eesupp/src:
1327      - check in genmake2 that intrinsic S/R flush is available.
1328      - add S/R to flush IO unit (if intrinsic S/R flush is available)
1329      - flush standard & error msg unit before MPI termination
1330      - if debugMode, flush IO unit after printing msg
1331    o pkg/ctrl:
1332      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
1333        to ctrl_set_unpack_xyz.
1334    
1335    checkpoint64 (2012/10/09)
1336    o pkg/shelfice
1337      - in mom_fluxform.F, mom_vecinv.F:
1338        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
1339        Bug fix KappaRU -> KappaRV
1340        does not change verification/isomip but may change other setups
1341        (presumably constant KappaRU=KappaRV)
1342      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
1343    o pkg/obcs:
1344      - fixed some indexing bugs in obcs_seaice_sponge.F
1345      - added obcs relaxation subroutines for HSALT and HSNOW
1346      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
1347  o pkg/seaice:  o pkg/seaice:
1348    - add "multicategory" parameterization for snow in analogy to ice,    - add "multicategory" parameterization for snow in analogy to ice,
1349      default is off for now.      default is off for now.

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