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revision 1.1794 by jmc, Thu Dec 27 20:09:11 2012 UTC revision 1.2008 by jmc, Fri Jun 20 13:13:37 2014 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    checkpoint64y (2014/06/20)
8    o pkg/seaice/seaice_reg_ridge.F:
9      - modify the regularization of very small volumes of ice; only check
10        total volume HEFF, and do not apply correction to individual ice
11        classes because that leads to funny patterns in the heat and fw-fluxes
12        into the ocean. Adjust seaice_itd/results/output.txt
13      - replace nITD by SEAICE_multDim in loop-ranges
14    o pkg/exf:
15      - add code to process the case field period = -12. with UV interpolation.
16      - move debug print (formerly active when exf_verbose=T) from EXF_getFFieldRec
17        into S/R that calls it (i.e., exf_set_gen.F, exf_set_uv.F & obcs_exf_load.F)
18    o verification/global_with_exf:
19      - switch all fields period to -12. (was previously untested) in input/data.exf
20        (but keep secondary test ".yearly" unchanged); update the reference output.
21    o pkg/cal:
22      - new calendar type "noLeapYear" for 365 days calendar without any leap year.
23    o pkg/exf:
24      - new integer parameter "exf_debugLev" (default set to main model debugLevel)
25        to replace logical switch "exf_verbose"
26      - report in STDOUT when loading a new record (if exf_debugLev >= 3)
27    o pkg/sbo:
28      - update from Katherine Quinn: evaluate mass directly from density and SSH
29        (budget using Finite Volume method) instead of from bottom pressure.
30      - allow testreport to collect few selected SBO output ; tested in exp.
31        global_ocean.90x40x15 (after updating the results, to include SBO output).
32      - fix some multi-threading issues (in output part).
33    o model/src & most packages:
34      - always call {PKG}_READPARMS even if corresponding use{PKG}=F;
35      - in {PKG}_READPARMS, in case use{PKG}=F: add a call to new S/R
36        PACKAGES_UNUSED_MSG to print a weak warning when parameter file
37        "data.{pkg}" exist ; and leave the S/R (return) just after.
38      - more standard LAND pkg interface (land_init_fixed.F, land_check.F).
39        + call LAND_READPARMS from packages_readparms.F
40    o pkg/seaice:
41      - remove code that resets useThSice in S/R seaice_readparms and
42        replace it by a warning in S/R seaice_check
43      - remove parameter MULTDIM, replace with nITD and runtime
44        parameter SEAICE_multDim (still hard-wired to nITD if
45        SEAICE_ITD is defined)
46    
47    checkpoint64x (2014/05/24)
48    o verification/lab_sea:
49      - update adjoint and TLM output following changes to pkg/salt_plume
50      - un-do the update after putting back local recip_Cp in few places.
51    o pkg/salt_plume: modifications by An Nguyen:
52      - add capability to do brine rejection (salt-plume) as function of
53        volume+tracers (instead of only salinity tracer).
54      - conserve volume by exchanging volume from each kLev to above to
55        accommodate in-coming brine volume
56      - store surface and klev exchanged fraction + volume in 4 new 3-d arrays
57      - switch KPP surf buoyancy due to brine forcing to 3-d
58        (3 more 3-d arrays, 2 for SPforcing[T,S], 1 for boplume)
59      - add salt_plume_volfrac, salt_plume_apply, salt_plume_tendency_apply_t
60      - unrelatedly, also add ad-hoc capability to vary salt_plume scheme
61        in East/West Arctic.
62    o pkg/sbo:
63      - incorporate modifications from Katherine Quinn to enable the use of sbo
64        pkg in ECCO-v4 set-up ; remove SBO-TimeAve output ; add monitor-like
65        output for future testreport verification (unfinished).
66    o pkg/atm_phys:
67      - change diagnostics (AtPh_Trf & AtPh_Qrf) of DARGAN_BETTSMILLER S/R:
68        skip the reseting of t_ref & q_ref to initial t & q ; this preserve the
69        output of S/R CAPECALCNEW (Parcel temp & q) for diagnostics.
70    o pkg/seaice
71      seaice_calc_ice_strength.F: modify expression to avoid divisions
72        (affects truncation)
73      seaice_do_ridging.F: clean up the insectarium
74      - fix a bug that was compensated by areaScaling (-> remove areaScaling code)
75      - added SEAICEsnowFracRidge to redistributed snow (2nd bug)
76      - set closing/openingRate to zero where no extra iteration is need (3rd bug)
77      - add some debugging information and error messages (warnings)
78    o model/src: modifications relatd to atmosphere p*:
79      - Switch to more accurate p* coordinate slope term (calc_grad_phi_hyd.F)
80      - With p* or Sigma-P, use constant reference Pot.Temp (thetaConst) instead
81        of vertical profile tRef in geopotential background and anomaly.
82      - Acount for true p* correction in theta <-> T conversion in pkg/aim_v23
83        and pkg/atm_phys.
84      - Update FWD output of experiments: aim.5l_cs (x2), fizhi-cs-32x32x40,
85        fizhi-cs-aqualev20, fizhi-gridalt-hs, tutorial_held_suarez_cs, cpl_aim+ocn.
86    o pkg/seaice: fix a bug in seaice_prepare_ridging.F, forgot a sqrt
87    o pkg/ptracers: compute ptracer source/sink due to linear free surface.
88        not used right now, but can be used in BGC packages to fix conservation.
89    o pkg/dic, pkg/gchem: move tracer_meanarea to gchem, so it can be used by
90        other packages too.
91    o pkg/seaice/seaice_calc_ice_strength.F: replace SEAICE_rhoSnow by
92        SEAICE_rhoIce in the Rothrock (1975)-type strength calculations (bug fix)
93    o model/src:
94      - since we have several heat capacity (even in model/src), define "recip_Cp"
95        as local variable (no longer in common block) to avoid any confusion.
96      - add thetaConst in PARAMS.h (to be used with pStar or sigma-P coords).
97    o pkg/exf:
98      - from Jeff Scott: add option (#define EXF_CALC_ATMRHO) to calculate local
99        air density as function of air Temp, Humidity and atm pressure.
100    
101    checkpoint64w (2014/05/02)
102    o verification:
103      - update output_adm.txt files for experiment global_ocean.cs32x15 (seaice &
104        seaice_dynmix) and lab_sea (primary test & noseaicedyn): moving/changing
105        code from seaice_growth.F & seaice_advdiff.F to new ridging routines
106        seaice_reg_ridge.F seaice_do_ridging.F affects AD gradient
107        (down to 8-7 matching digits for global_ocean and 5-6 for lab_sea).
108    o model/src: for atmosphere in p* coords:
109      - store factor rStarFacC**atm_kappa (= pStarFacK) in common block
110      - implement more accurate p* coordinate slope term (in calc_grad_phi_hyd.F),
111        but not yet activated.
112    o pkg/seaice: fix restart problem for ITD with new ice strength parameterisation:
113      - move computation of opnWtrFrac = 1-AREA to before computing ice strength
114      - this changes the results (but not for any verification experiment, because
115        none tests this), but avoids having an extra field in the restart files
116    o pkg/seaice: remove global variable TICE (not needed)
117      - replace by TICES or local variable where necessary (cost_seaice_test,
118        seaice_diagnostics_state)
119      - move copying TICE to TICES from seaice_check_pickup to seaice_read_pickup
120      - use specific read/write routines for reading and writing individual leves
121        of a multilevel field
122    o pkg/ctrl & model/inc:
123      - move additional anomaly fields of control vars (related to options:
124         ALLOW_KAPGM_CONTROL, ALLOW_KAPREDI_CONTROL and ALLOW_BOTTOMDRAG_CONTROL)
125        from DYNVARS.h into new header file: CTRL_FIELDS.h
126    o pkg/seaice: some small modifications to the ridging code
127      - make fw2ObyRidge a global variable and add the freshwater flux to
128        seaice_growth
129      - pass actual thickness from seaice_prepare_ridging, so that it is
130        computed only in one place and compute it in the same way as in
131        seaice_growth
132      - initialise more fields in seaice_do_ridging that where cause floating
133        point exceptions over land
134    o pkg/seaice: preparations for ridging code and first real ridging code
135      - move most of "PART 1" of S/R seaice_growth into a new and separate
136        S/R seaice_reg_ridge that will both regularize the state variable after
137        advection call the actual ridging routine;
138      - requires to make 5 fields global fields: d_HEFFbyNEG,d_HSNWbyNEG,
139        d_AREAbyRLX,d_HEFFbyRLX,saltFluxAdjust;
140      - remove ridging code from seaice_advdiff
141      - clean up remaining part 1 of seaice_growth in an attempt to make it
142        more readable (this is probably subjective)
143      - call seaice_itd_redist once in the initialisation phase to have the initial
144        conditions in the correct category
145      - finally: add new ridging routine for ITD code
146    
147    checkpoint64v (2014/04/11)
148    o pkg/ecco:
149      - add runtime parameters mdt[start,end]date[1,2]
150      - rename variable "tpmean" as "mdt" and "topexmeanfile" as "mdtdatfile"
151    o pkg/seaice:
152      - make deltaC a global variable, so that it can be used in ridging code
153      - first step towards ridging: introduce new routines that compute
154        ice strength based on ridging parameters
155      - add diagnostic for HSNOWITD
156      - add opnWtrFrac as a global variable (required for ridging scheme)
157    o pkg/salt_plume + pkg/seaice/seaice_growth.F
158      - add SALT_PLUME_IN_LEADS flag to activate pkg/salt_plume only when ice
159        AREA exceeds a threshold (code contributed by I.Fenty in 2011)
160    o verification/hs94.1x64x5:
161      - leave ALLOW_AUTODIFF_TAMC undefined in code_oad/AUTODIFF_OPTIONS.h
162      - do not use ECCO_CPPOPTIONS.h anymore for TAF & OpenAD Adjoint tests.
163    o autodiff:
164      - Start to include explicitly AUTODIFF_OPTIONS.h, COST_OPTIONS.h,
165        and CTRL_OPTIONS.h in src files (to enable to skip the ECCO_CPPOPTIONS.h)
166        For now, only in pkgs used in verification/hs94.1x64x5.
167      - Replace ALLOW_AUTODIFF_TAMC by ALLOW_AUTODIFF (except for tape/storage
168        which are specific to TAF/TAMC).
169      - Replace ALLOW_AUTODIFF_OPENAD by ALLOW_OPENAD:
170        since ALLOW_OPENAD is defined in PACKAGES_CONFIG.h (any time pkg/openad
171        is compiled), this simplifies/reduces which *_OPTIONS.h file to include.
172      - OpenAD: change Makefile to generate the appropriate AD_CONFIG.h when
173        building mitgcmuv_ad (make adAll).
174    o pkg/ecco:
175      - cost_gencost_seaicev4.F:
176         reformulate proxy cost as function of sst and local param SEAICE_freeze
177         change cost names from siv4-[sst,vol] to siv4-[deconc,exconc]
178      - add stop statement if old names siv4-[sst,vol] are used
179      - add snapshots + cost reports for atmospheric longwave
180      - remove factor 0.1 in front of wtau[u,v]
181      - replace never used flag ALLOW_TMI_COST_CONTRIBUTION with
182         ALLOW_TMI_SST_COST_CONTRIBUTION
183    o pkg/atm_phys:
184      - add some diagnostics for Short-wave and for convection S/R.
185    o pkg/seaice/seaice_growth:
186      - fix a bug in the lateral melt parameterization for SEAICE_ITD
187        in seaice_growth; tempFrz needs to be computed inside the i/j-loop
188      - rearrange loop order for better vector code in the same code block
189      - rewrite the floeDiameter formula to have fewer divisions
190      -  (miraculously) none of this changes the results of seaice_itd
191    o pkg/smooth:
192      - move param smooth2Ddiffnbt to pkg/ecco
193    o pkg/salt_plume:
194      - salt_plume_frac.F:
195         clean up local param names
196         reformulate (1-frac) to frac; original 1-frac was based on swfrac code
197    o pkg/rw:
198      - add RS version of S/R READ_MFLDS_LEV.
199    o pkg/streamice:
200      - fix the restart test by writing/reading pickup_streamice files.
201    o pkg/seaice:
202      - refine checks for jfnk-related parameters
203      - comment out if statement with SEAICEuseIMEX parameter as long as there
204        is no IMEX code to avoid confusion and surprises
205    
206    checkpoint64u (2014/03/07)
207    o verification/MLAdjust:
208      - rename secondary test suffix:
209         1.leith  -> A4FlxF  + switch to flux-form & add side-drag
210         0.leithD -> AhFlxF  + switch to flux-form
211         0.smag   -> AhVrDv  (use Vorticity-Div. visc form) + add side-drag
212         0.leith  -> AhStTn  (use Strain-Tension visc form) + add side-drag
213    o pkg/mom_vecinv:
214      - remove unused arguments from S/R MOM_VI_HDISSIP & MOM_HDISSIP (as it used
215        to be before mom_calc_visc.F)
216      - skip the call to MOM_CALC_TENSION & MOM_CALC_STRAIN if not needed.
217      - add 2nd copy of vort3 & strain that knows about lateral BC (free/no slip):
218        this is simpler for the adjoint and for diagnostics.
219    o model/src + pkg/momentum:
220      - add input files for  2-D additional Western and Southern cell-edge wall
221         (e.g., to add "thin-wall" where it is =1).
222      - fix sideDrag option for thin-walls with Non-Lin Free-Surf
223        using 2nd hFacZ that is computed from initial (fix domain) hFac
224      - known limitations of thin wall implementation: not yet coded for sigma
225        coords; not working with CD-scheme neither.
226    o pkg/seaice:
227      - rename recently introduced parameters from (wrong name) AB to
228        BDF (backward difference time discretisation)
229      - retire runtime parameters SEAICEuseAB2, SEAICE_abEps
230    o tools/adjoint_options:
231      - remove setting of "OPENAD=true" (now set by command line "genmake2 -oad")
232    
233    checkpoint64t (2014/02/01)
234    o pkg/ecco
235      - add compile flag ALLOW_GENCOST_TIMEVARY_WEIGHT in ECCO_OPTIONS.h and
236        runtime logical flag gencost_timevaryweight to read daily sea-ice sigma
237      - replace hard-coded record number and period which only work for monthly
238        with read-in runtime param that works for other periods (month,day,year)
239    o pkg/thsice
240      - corrected store directive fixes thsice adjoint gradient checks
241    o genmake2 & testreport:
242      - add genmake2 option "-oad" to generate a Makefile for OpenAD built and
243        in this case, use tools/adjoint_options/adjoint_oad as default AD optfile.
244        Update testreport accordingly. No need to set "export OPENAD=true"
245        in adjoint_options/adjoint_oad anymore (will be removed later).
246    o pkg/shelfice:
247      - put T & S shelfice forcing into model surfaceForcing_T,_S (for now,
248        only if SHELFICEboundaryLayer=F); Change model/src/external_forcing.F
249        so that surface forcing applies to k=kSurf if using pkg/shelfice.
250    o pkg/ctrl, pkg/grdchk, pkg/ecco:
251      - Changes to make GENARR more modular (i.e. invisible if not used)
252    o model/src/temp_integrate.F and salt_integrate.F
253      - re-include store directives that were removed on Dec 27th.
254    o model/src/external_forcing_surf.F
255      - add storage directives for EmPmR and PmEpR to avoid recomputation of
256        seaice_model in the adjoint that is problematic when seaice_model is
257        turned off in the adjoint. The resolved issue dated back to July when
258        EXTERNAL_FORCING_SURF call was moved.
259        Update global_ocean.cs32x15/*/output_adm.seaice_dynmix.txt accordingly.
260    o pkg/exf/exf_check.F
261      - fix a small bug again (originally found by Wentao Liu, now found again)
262      - streamline error output
263    o pkg/streamice and aim_v23:
264      - replace a few "_EXCH_XY_RL (" with "_EXCH_XY_RL(", so that
265        Apple's /usr/bin/cpp knows what to do:
266        Apple LLVM version 5.0 (clang-500.2.79) (based on LLVM 3.3svn)
267        Target: x86_64-apple-darwin13.0.0
268    
269    checkpoint64s (2014/01/05)
270    o tools/adjoint_options:
271      - switch to fastopt.net TAF server (instead of default fastopt.de) for
272        AD optfiles adjoint_diva & adjoint_f95 (similar to adjoint_default).
273    o model/src:
274      - remove some unnecessary TAF storage directives in forward_step.F and
275        in dynamics.F (note: not always removed by TAF, e.g., double storage
276        of kappaRU,kappaRV in former version of dynamics.F).
277    o model/src & pkg/ptracers:
278      - call directly GAD_IMPLICIT_R & IMPLDIFF + DWNSLP_APPLY from temp_integrate.F
279        salt_integrate.F and ptracers_integrate.F (instead of from thermodynamics.F)
280        and remove ptracers_dwnslp_apply.F & ptracers_implicit.F
281      - call MATRIX_STORE_TENDENCY_EXP for each tracer (in ptracers_integrate.F)
282      - add fZon & fMer as output argument of S/R GAD_CALC_RHS.
283      - update TAF AD-output of experiments global_ocean.90x40x15 (13 for AD-grad).
284    o useSingleCpuInput separates single-CPU input from single-CPU output;
285        for now only implemented for in exf_interp_read.F
286    o verification/advect_xy:
287      - fix missing EXCH call in local version of ini_salt.F and update output.
288    o momentum diagnostics:
289      - fix which deltaT is used in Total-Tendency diagnostics.
290      - fix typo in diagnostics for momentum tendency from AB.
291    o pkg/seaice/seaice_lsr.F: fix an initialisation bug for the
292        SEAICE_VECTORIZE_LSR_ZEBRA option that lead to NaNs on a NEC-SX8
293    
294    checkpoint64r (2013/12/08)
295    o verification/*/results:
296      - Update reference output of experiments that were passing with just 13 digits
297         (make it easier to detect future changes in results)
298    o model/src & pkg/ptracers:
299      - move calls to GAD_ADVECTION (Multi-Dim advection) from thermodynamics.F to
300        inside temp_integrate.F and salt_integrate.F and from ptracers_advection.F
301        to inside ptracers_integrate.F ; remove ptracers_advection.F
302    o coupling interface pkgs:
303        [atm_compon_interf, ocn_compon_interf & atm_ocn_coupler]
304      - change the config check to test the agreement of Ocean Depth
305        with ATM land/sea mask (instead of ATM orography);
306      - send to coupler the number of coupler time-steps to do for this run:
307        this allows to check for consistency and don't need anymore to be
308        specified in parameter file "data";
309      in coupler:
310      - check consistency of RunOff map versus Ocean Depth and ATM land/sea mask.
311      - improve report to log-file of config setting (pass log-file unit to few S/R)
312    o pkg/compon_communic:
313      - add coupling send/receive for non-tiled integer vector;
314      - add S/R to check and stop if any proc has an error (similar to
315        eesupp/src/stop_if_error.F but single thread and across Comm_World).
316    o pkg/exch2:
317      - in exch2*_get_rx[1,2]: use new list "W2_tileIndex" to replace search
318        through list of all tiles my proc owns.
319    o model/src:
320      - AUTODIFF only: in calc_adv_flow.F, recompute rTransKp (instead of copying
321        from rTrans) to simplify dependencies (no need to store rTrans anymore in
322        calling S/R); this affects AD results at machine truncation level:
323        update AD-output (TAF) of experiments: 1D_ocean_ice_column,
324        bottom_ctrl_5x5 & obcs_ctrl (12 digits for AD grad, same FWD grad).
325    o tools/build_options:
326      - simplify Warnings options (-ieee & -devel cases) in linux_amd64_gfortran
327    o coupling interface pkgs:
328        [compon_communic, atm_compon_interf & ocn_compon_interf]
329      - move declaration of local array "ibuf" out of header file "CPLR_SIG.h"
330        to each S/R that needs it; remove un-used variables.
331      - change component tile registration (cpl_register.F in both compon_interf
332        and mitcomponent_tile_register.F) to pass the full list of tiles
333        information (including bi,bj) in 1 vector (instead of in a bi,bj matrix).
334      - with pkg/exch2: adopt the same convention used for I/O to define mapping
335        towards coupler global array (unless W2_useE2ioLayOut=F):
336         a) can now use different tiling between atm & ocn comp.
337         b) no needs to modify the run-Off map when changing tiling (was needed
338            even if using the same tiling between atm & ocn).
339         c) will allow to run with blank-tiles in 1 component (e.g., for ocean
340            full land tiles); not yet tested.
341      - check for valid mapping from comp. tile to coupler global array
342      - improve report of tile registration results to log file.
343    o pkg/exch2:
344      - in eesupp/src/eeboot.F: move call to W2_EEBOOT before Coupler
345        tile-registration (CPL_REGISTER);
346      - activate (un-comment) definition and setting of "W2_tileIndex" list to
347        store the local bi,bj indices of each tile;
348      - also print bi,bj in local report to log file;
349      - fix pkg/debug/debug_cs_corner_uv.F for the case nSy > 1 (left from
350        Jun 2009 modif of pkg/exch2).
351    o testing on baudelaire:
352      - run 2 tests at a time: no significant slow down (since enough cpu) and
353        get the full set of test done earlier
354      - switch the ifort test to "-devel" ; run the OpenAD test everyday.
355    o model/src/thermodynamics.F and routines called from it:
356      - pkg/gmredi: gmredi_residual_flow.F (replacing gmredi_calc_uvflow.F &
357        gmredi_calc_wflow.F) to update eulerian velocity (input) into residual
358        velocity (outp) by adding bolus velocity.
359      - model/src: calc_adv_flow.F (replacing calc_common_factors.F) to compute
360        mass transport from velocity + lateral grid cell area
361      - rename calc_gt.F to temp_integrate.F (includes call to TIMESTEP_TRACER)
362      - rename calc_gs.F to salt_integrate.F (includes call to TIMESTEP_TRACER)
363     in thermodynamics.F
364      - remove k from thermodynamics.F and move it to temp_integrate.F
365        salt_integrate.F and ptracers_integrate.F (now done inside the tracer
366        loop).
367      - compute locally (in thermodynamics.F) 3-D velocity field that is used to
368        advect tracers; pass it as argument to GAD_ADVECTION, GAD_SOM_ADVECT,
369        PTRACERS_ADVECTION, TEMP_INTEGRATE, SALT_INTEGRATE, PTRACERS_INTEGRATE,
370        GAD_IMPLICIT_R and PTRACERS_IMPLICIT
371      - update AD-output (TAF & OAD) of experiments: 1D_ocean_ice_column,
372        global_ocean.90x40x15, tutorial_global_oce_biogeo and
373        tutorial_tracer_adjsens (+ TLM output).
374    o tools/OAD_support and (verification/*/) code_oad:
375      - OAD_support/cb2mGetModules.csh: add PACKAGES_CONFIG.h in header file to
376        module conversion ; remove unneeded CPP_EEOPTIONS.h.
377      - code_oad/CPP_OPTIONS.h: remove PACKAGES_CONFIG.h and use a more standard
378        version (closer to model/inc/CPP_OPTIONS.h).
379    o model/src:
380      - remove parameter "useOldFreezing" from PARAMS.h and push it to the
381        retired list of parameters (routine FREEZE has been replace by surface
382        freezing (10.yrs ago) and by pkg/frazil (interior freezing).
383    o pkg/gmredi:
384      - add option (GM_CALC_TRANSP_FROM_VEL) to compute transport directly from
385        velocity (same scheme but affects machine truncation) for GM_AdvForm.
386      - update output of FWD experiments: front_relax.bvp,
387        global_ocean.90x40x15.dwnslp, global_ocean.cs32x15 and ideal_2D_oce.
388    
389    checkpoint64q (2013/11/17)
390    o verification:
391      - generate new output on baudelaire (gfortran, -ieee) for OpenAD experiments
392        tutorial_global_oce_biogeo and global_ocean.90x40x15.
393      - generate new output (growth & melt) for seaice_itd experiment after
394        updating the input pickup_seaice files (previously wrong).
395    o pkg/cost:
396      - define a "final cost function" for each tile, and use GLOBAL_SUM_TILE_RL
397        (instead of _GLOBAL_SUM_RL) to get the final cost from all procs & threads:
398        o this fixes global-sum value if multi-threads (since GLOBAL_SUM_RL
399          cannot be applied to var in common block).
400        o allows to get results independent of tile-per-proc setting (if using
401          slower GLOBAL_SUM_SEND_RECV option).
402      - update accordingly: seaice_cost_final.F, shelfice_cost_final.F,
403        thsice_cost_final.F and ecco_cost_final.F (this one affects lab_sea
404        forward gradients: update output).
405      - update */code_oad/externalDummies.F by adding dummy GLOBAL_SUM_TILE_RL
406        S/R and, for most exp., also comment out GLOBAL_SUM_R8.
407    o pkg/mom_common:
408      - move to pkg/mom_common and model/src (previously in tutorial_deep_convection
409        code) 2nd version of isotropic 3-D Smagorinsky code interface: strain and
410        viscosity are locally declared in dynmics.F and pass as argument to CALC_GW;
411        ensure that all field value that are used are set.
412    o tutorial_deep_convection (smag3d):
413      - add missing scaling in mom_calc_smag_3d.F;
414      - set smag3D_coeff in input.smag3d such that results do not change.
415    o pkg/dic:
416      - change dic_cost.F to compute cost on each tile first and then apply
417        GLOBAL_SUM_TILE_RL: this affects forward gradient of AD experiments
418        tutorial_dic_adjoffline & tutorial_global_oce_biogeo; update output.
419      - remove kLev argument and use GLOBAL_SUM_TILE_RL in tracer_meanarea.
420    o eesupp/src & pkg/mdsio:
421      - remove gather/scatter_vector.F (from eesupp) and mdsio_read/writevector.F
422        (from pkg/mdsio) since they are no longer used for tape IO.
423      - move simple C subroutine "setdir.c" from pkg/compon_communic to eesupp/src
424        (+ keep a copy in pkg/atm_ocn_coupler).
425    o verification/isomip:
426      - split domain in 8 squared tiles (instead of just 2) for FWD, AD & OAD tests.
427    o tools/build_options:
428      - optfile linux_amd64_ifort11, fast (no ieee) case:
429        to get a working restart for all experiments, add "-fp-model source"
430        to FOPTIM (also remove "-opt-streaming-stores auto" <- this is the default).
431    
432    checkpoint64p (2013/10/20)
433    o pkg/autodiff:
434      - adread_adwrite.F: when type and length do not match ALLOW_AUTODIFF_WHTAPEIO
435        criteria, return to simple (default) tape IO format.
436    o pkg/mdsio (+ eesupp/src):
437      - rewrite/simplify tape-IO S/R (new S/R MDS_READ/WRITE_TAPE replace
438        previous MDSREAD/WRITEVECTOR) with 2 array argument from each type (R4/R8);
439      - fix globalFile and singleCpuIO options using simpler global mapping.
440      - new pairs of scatter/gather vector S/R (one for each type, generated from
441        template) corresponding to simpler global mapping.
442      - adread_write.F: switch to new S/R (but leave old calls commented) and write
443        to globalFile when parameter globalFiles is set to True.
444      - switch on useSingleCpuIO in AD experiments: global_ocean.90x40x15 & isomip.
445    o pkg/autodiff:
446      - adread_adwrite.F: add a hack for RS arrays (when RS=real*4);
447        with ALLOW_AUTODIFF_WHTAPEIO defined, since corresponding (real*4) is
448        missing, just add a STOP if array type do not match.
449    o pkg/exf:
450      - to allow to use seaice-fraction from pkg/exf in other pkgs than pkg/seaice:
451         rename CPP option EXF_ALLOW_SEAICE_RELAX to EXF_SEAICE_FRACTION
452         and rename array obsSIce to exf_iceFraction.
453    o tutorial_deep_convection:
454      - add 1rst version of isotropic 3-D Smagorinsky code (from Louis-Philippe),
455        for now all in this exp. code dir.
456      - add secondary test using Smag-3D viscosity (keep very low backgroud visc for
457        testing) and flux-limter advection scheme for Temp. (no explicit diffusion).
458    o eesupp/src:
459      - added SINGLE_DISK_IO option because reading of parameter files on
460        very large number of processors did not work with existing set-up
461    
462    checkpoint64o (2013/09/25)
463    o pkg/atm_phys & atm_compon_interf:
464      - allows for coupling of gray-atmosphere (atm_phys) with ocean.
465    o tools/build_options:
466      - switch from "-fPIC" to "-mcmodel=medium" in optfiles: linux_amd64_gfortran
467        & linux_amd64_ifort11 and in linux_amd64_g77 & linux_amd64_open64 also
468        remove CPP setting (was identical to genmake2 default).
469    o pkg/gmredi & model/src: Some updating and work done on the residual model.
470      - created new file model/src/calc_eddy_stress.F to calculate the eddy stress.
471      - fixed up the calculation of the eddy stress and how it is added to the
472        external forcing via taueddy_external_forcing.F
473      - at the moment, it is very experimental and only works with the variable eddy
474        diffusivity calculated in gmredi_k3d.F
475    o pkg/seaice/seaice_check.F: add a check to catch the case of specifying
476        lw/swfluxfile instead of lw/swdownfile in data.exf together with pkg/seaice
477    o testreport (& tools/do_tst_2+2):
478      - for MPI test, set default COMMAND to 'mpirun -v -np TR_NPROC ./{executable}'
479    o tools/build_options: linux_amd64_gfortran & linux_amd64_ifort11:
480      - remove CPP='cpp -traditional -P' (this is genmake2 default)
481      - add switch (for big setups) to use 'medium' memory-model (but leave it
482        commented out for now). Note: needed with FC 19 to compile big setups.
483    o pkg/atm_compon_interf:
484      - regroup per field origin (model & pkgs) the coupling storage routines
485         (which accumalate in time each coupling field)
486      - move bi,bj loops inside atm_store_my_data.F and store also wind-stress;
487        update accordingly + simplify aim_do_physics.F
488    
489    checkpoint64n (2013/08/26)
490    o pkg/bbl:
491      - update formulation to reduce dispersion of tracer properties in bbl
492      - replaced horizontal and vertical transport parameters with velocities
493      - changes results for verification/global_with_exf.yearly
494    o verification/halfpipe_streamice:
495      - change to matrix construction; update both Fwd & AD output.
496    o verification/tutorial_tracer_adjsens:
497      - OpenAD test: switch to vector-invariant momentum since fluxform with
498        rStar causes problems with OpenAD; update output.
499    o tools:
500      - genmake2: define a common prefix for all temp-file names ; move them
501        to local /tmp disk (but would be easy to move them back);
502      - xmakedepend: apply the same switch for temp-files.
503    o pkg/offline:
504      - changes for use with rStar (NLFS): assume that we continue to provide
505        UVELMASS/hFacW_ini & VVELMASS/hFacS_ini (hFacWi,S_ini as written in grid
506        output files) and apply r* scaling at each time-step (function of the time
507        varying Eta field); use normal pickup files (needed for restart with NLFS).
508    o adjoint with OpenAD:
509      - move OpenAD-specific files from verification/OpenAD/code_oad_all to a new
510        package openad.  This package has to be compiled for all runs with OpenAD
511        instead of specifying code_oad_all as a modification directory.
512      - link the fortran templates from tools/OAD_support to the build directory
513        for preprocessing to avoid conflicts between different setups compiled
514        simultaneously and simplify cleanup.
515    o pkg/exf:
516      - in exf_getforcing.F: comment out most of the EXCH calls (fields used by
517        main model or other pkgs are exchanged in EXF_MAPFIELDS).
518    o model/src:
519      - do_stagger_fields_exchanges.F: skip EXCH calls when using pkg/offline
520        (similar to do_fields_blocking_exchanges.F).
521    o tools/genmake2:
522      - remove TAF output src code just before calling staf (when not doing a fresh
523        built, will stop if things go wrong with staf).
524      - fix target "adobj" (left from TAF version-2 transition)
525    o pkg/diagnostics:
526      - add a parameter to track the status of pkg/diagnostics activation;
527        this replace/extend the use of logical param "settingDiags" (to check
528        when adding diag to the list) to also check any DIAGNOSTICS_[]FILL* call.
529        New S/R to print error message and stop when pkgStatus is not right.
530      - to try: add a warning when "data.diagnostics" exist but useDiagnostics=F.
531    
532    checkpoint64m (2013/08/13)
533    o model/inc:
534      - move FCORI_MACROS.h from PARAMS(_MACROS).h to GRID_MACROS.h (left from
535        8 yrs ago modif when Coriolis arrays were moved from PARAMS.h to GRID.h)
536    o pkg/kpp & aim_v23:
537      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
538    o pkg/seaice:
539      - restore (last time on 2011/12/24) ability to compile pkg/seaice with
540        undefined pkg/exf ALLOW_ATM_TEMP or ALLOW_RUNOFF CPP-options.
541      - only call DIAGNOSTICS_FILL when useDiagnostics=TRUE.
542    o eesupp/src:
543      - fix check for overlap-size argument (myOLn.GT.MAX_OLY_EXCH)
544        in exch1_rx[_ad].template (thanks to Francois Lefeuvre report).
545    o switch to TAF version-2:
546      - add flow directives to "freeze" naming convention for ad-routines that
547        are used in I/O routines of adjoint state and associated common blocks
548        that are used in adcommon.h (backward compatible with version-1)
549      - update all ad-optfiles (in tools/adjoint_options + few local to some
550        verification exp) to switch to latest TAF version (currently 2.5.5);
551        merge "*_mpi" adoptfiles into the corresponding non-mpi (but commented
552        out except for diva).
553      - the major change with TAF version-2 is that both the differentiated
554        routines and the forward routines (new) are returned as part of the TAF
555        output source code. Update genmake2 accordingly.
556      - new output for AD experiment tutorial_global_oce_biogeo (better AD gradient
557        with version-2 when compared to TLM or FWD gradient); other experiments
558        output show minor changes (machine truncation level); update the few AD &
559        TLM output with 12 matching digits only (some prior to version-2 switch).
560    
561    checkpoint64l (2013/08/05)
562    o model/src:
563      - in dynamics.F, skip the call to CALC_VISCOSITY if momViscosity=F
564      - main_do_loop.F: no longer includes additional (AUTODIFF) header files
565        when using TAF but only if using OpenAD.
566    o pkg/mom_common+fluxform+vecinv:
567      - always set horiz. viscosity arrays to background value before calling
568        MOM_CALC_VISC (in MOM_FLUXFORM & MOM_VECINV) and call S/R MOM_CALC_VISC
569        only when using variable horiz. viscosity (useVariableVisc=T);
570      - simplify mom_vecinv.F (only 1 block for momViscosity).
571    o pkg/mom_common: variable horiz. viscosity in NH code
572      - move horiz-viscosity 3-D arrays viscAh_W & viscA4_W (used in calc_gw.F)
573        from model/inc/NH_VARS.h to pkg/mom_common/MOM_VISC.h
574      - store in common block (in MOM_VISC.h) logical parameters: useHarmonicVisc,
575        useBiharmonicVisc & useVariableVisc.
576      - fix old bug (already in 1rst implementation of variable horizontal viscosity
577        in calc_gw.F, version 1.27, 2006/06/20):
578        horizontal bi-harmonic viscosity in gW was missing when wiscA4W=0
579        even if variable bi-harmonic viscosity (e.g., viscA4Grid) was non-zero.
580      - change background horiz viscosity in vertical momentum (gW) to always be
581        viscAhW,viscA4W (instead of switching to viscAhD, viscA4D when using
582        any type of variable viscosity, e.g., viscAh/4Grid)
583      - change default value of viscAhW,viscA4W to viscAhD,viscA4D (instead of
584        viscAh,viscA4) which default to viscAh,viscA4 :  this avoid missing
585        horiz. viscosity in W eq when just setting viscAhD/Z,viscA4D/Z (since
586        default viscAh,viscA4 is zero).
587    o model/src:
588      - extend length of drC & recip_drC from Nr to Nr+1.
589    o Divided Adjoint (DIVA) with MPI:
590      - genmake2: do not create local ./mpi_headers dir when no file to copy into.
591      - remove option ALLOW_DIVIDED_ADJOINT_MPI (replaced by ALLOW_DIVIDED_ADJOINT
592        and ALLOW_USE_MPI) from model/src code and from ECCO_CPPOPTIONS.h.
593    
594    checkpoint64k (2013/07/23)
595    o tools/OAD_support:
596      - avoid the need for file "oadtempflile" in insertTemplateDir.bash
597        and remove it from genmake2.
598    o tools/build_options:
599      - remove MPI_HEADER_FILES_INC setting (no longer used) and comment out
600        MPI_HEADER_FILES list (let genmake2 find the missing headers)
601    o verification/halfpipe_streamice:
602      - change to driving stress formulation; update both Fwd & AD output.
603    o tools/genmake2 and Divided Adjoint with MPI:
604      - remove default setting of MPIINCLUDEDIR from $MPIHOME (always been broken);
605      - only create local ./mpi_headers dir if using MPI and MPIINCLUDEDIR is set;
606      - add new variable (LOCAL_MPI_HEADERS, replace MPI_HEADER_FILES_INC) in
607        Makefile, which is set by genmake2, and check which mpi-headers are needed.
608        Note: need to update adjoint_options/adjoint_diva_mpi accordingly.
609      - update target "CLEAN" (to also remove ./mpi_headers/ dir).
610    o testreport:
611      - changes for Divided Adjoint Run: when file "run_ADM_DIVA" is present,
612        perform additional runs (number of additional runs is "add_DIVA_runs" taken
613        from file run_ADM_DIVA ; should match "nchklev_3" in file "code_ad/tamc.h").
614    o verification/lab_sea (AD test):
615      - change to test Divided Adjoint Run in this set-up (both standard AD test
616        and 2 secondary AD test: noseaice + noseaicedyn); drop the evp AD test.
617    o pkg atm_ & ocn_compon_interf:
618      - remove cpl_earlyExpImpCall=F option (was mainly a hack added for the old
619        staggerTimeStep implementation) and disable (retired) corresponding
620        parameter.
621    o pkg/offline:
622      - comment out unused field-array: ICEM, ConvectCount, hflx[01], icem[01];
623      - add S/R OFFLINE_CHECK to print offline parameter summary
624        and stop if loading a file that is not used;
625      - enable to calculate GMRedi tensor, KPP mixing and convective index
626        when the corresponding file(s) is/are not specified (but pkg is used).
627      - comment out resetting of monitorFreq (to endTime) since it still useful
628        for monitoring CFL numbers and checking offline fields.
629    o OpenAD:
630      - do not define OAD_DEBUG (in tools/adjoint_options/adjoint_oad) to get
631        smaller standard output) and generate new (smaller) output (on baudelaire
632        using gfortran with -ieee) for exp. tutorial_tracer_adjsens
633    o model/src:
634      - call EXTERNAL_FORCING_SURF outside bi,bj loops (in do_oceanic_phys.F),
635        (where external_forcing_adjust was called) and change list of arguments;
636      - merge external_forcing_adjust.F into external_forcing_surf.F
637      - put surface relaxation of SST & SSS in new S/R (forcing_surf_relax.F)
638        which also contains balancing surface relaxation (ALLOW_BALANCE_RELAX,
639        previously in file "balance_relax.F", now removed); remove corresponding
640        arrays in FFIELDS.h.
641      - EXTERNAL_FORCING_SURF is now called when using pkg/offline; implement
642        a hack for getting back surfaceForcingS (loaded from file) when using
643        ALLOW_OLD_VIRTUALFLUX (pkg/dic, in DIC_OPTIONS.h) in offline set-up.
644      - update output of AD test experiment global_ocean.cs32x15.seaice_dynmix
645        (was getting only 11 digits for AD-grad, due to different truncation
646         error in AD code).
647    
648    checkpoint64j (2013/07/04)
649    o pkg/offline:
650      - to enable the use of other features with pkg offline (e.g., obcs),
651        also call S/R DO_OCEANIC_PHYS in offline run - more modifs to come.
652      - comment out "allowFreezing" (now active) in 2 offline testing exp.
653    o pkg/exf ALLOW_RUNOFTEMP
654      - fix sign and make compatible with temp_EvPrRn .NE. UNSET_RL
655      - ahdded RUNOFTEMP test to verification/global_ocean.cs32x15/input.seaice
656      - changes verification/global_ocean.cs32x15/results/output.seaice.txt
657    o pkg/atm_phys:
658      - allows to add some damping on uVel,vVel (strength only function of k).
659    o verification, ad-tests:
660      - reduce length of the simulation for AD test: global_ocean.cs32x15.seaice,
661        global_ocean_ebm and offline_exf_seaice.thsice.
662    o verification/halfpipe_streamice:
663      - found a bug in s/r pkg/streamice/streamice_advect_thickness which caused
664        flux input boundary conditions to be ignored; a fix for this bug changed
665        verification results for forward test.
666      - add adjoint test.
667    o pkg/ptracers:
668      - allow to restart without SOM pickup (resetting SOM to zero).
669    o pkg/gmredi:
670      - New parameterisation for the calculation of K and (GM_PsiX,GM_PsiY) added.
671      - It uses mixing length theory and suppression by steering level effects to
672        calculate a diffusivity used in the Redi tensor (see Bates et al., submitted
673        to JPO, for more details).
674      - It also uses the diffusivity to calculate an eddy induced streamfunction
675        based on a PV closure (rather than a buoyancy closure as in GM).
676      - New files added to pkg/gmredi:
677        gmredi_k3d.F calculates the diffusivity for the Redi tensor and the eddy
678          induced overturning streamfunction (called from gmredi_calc_tensor)
679        gmredi_calc_eigs.F calculates the eigenvalues and eigenvectors required
680          for use in gmredi_k3d
681        gmredi_calc_urms.F calculates the the rms eddy velocity used to calculate
682          the eddy diffusivity
683    
684    checkpoint64i (2013/06/18)
685    o pkg/cheapaml:
686      - take src files from MITgcm_contrib/verification_other/offline_cheapaml/code
687        that enable the use of seaice (pkg/thsice thermo & pkg/seaice dynamics)
688        with pkg/cheapaml.
689    o utils/python: add subpackage for cubed sphere function, first example is
690        simple cs.pcol to plot 2D fields on a map
691    o pkg/streamice:
692      - This is a new package in MITgcm, which solves dynamic equations for ice
693         sheets and ice streams
694      - At the moment it is independent of atmosphere/ocean dynamics, or any
695        other physical packages in MITgcm, even ShelfIce (although it is anticipat-
696        ed that this will change)
697      - There is a new verification exercise that tests it, halfpipe_streamice,
698        evolves a 40x80 km ice stream/ice shelf (at coarse resolution) in a
699        rectangular embayment
700      - halfpipe_streamice is forward-only for now, will have TAF test soon
701      - for questions, email dgoldber@mit.edu
702    o pkg/thsice:
703      - fix filling of snow-precip diagnostic (SIsnwPrc) (left from the removing
704        of snowPrc from common bloc, on May 2nd, thsice_step_fwd.F revision 1.40);
705      - remove diagnostics 'SI_FrcFx' ( now identical to 'SI_Fract' with new
706         call sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect );
707      - allow precip from pkg/cheapaml to make snow over seaice.
708    o pkg/cfc:
709      - move in separated header file (CFC_ATMOS.h) time-serie arrays of Atmos CFC
710      - remove atmos CFC 2-D arrays from common bloc (now local variables)
711      - change some hard-coded constant to run time parameter for reading and
712        and interpolating atmospheric CFC ; keep same default as previously.
713      - more flexible reading of Atmos CFC (number of records no longer hard-coded)
714      - put arguments in standard order: myTime, myIter, myThid
715      - use standard S/R GET_PERIODIC_INTERVAL for time interpolation of
716        atmospheric CFC ; fix for the case myIter < PTRACERS_iter0.
717      - fix calculation of surf tendencys for partial-cell and/or Non-Lin Free-Surf
718      - new routine to print summary of CFC params and check for consistency.
719    o pkg/seaice: add uice/vice to the parameter list of s/r seaice_advdiff,
720      similar to thsice_advdiff.
721      Note that for the B-grid case the routine parameters uc/vc are overwritten.
722    o pkg/cfc:
723      - change time interpolation for atmospheric CFC-11 (now same as for CFC-12);
724        update output (CFC-11) of experiment cfc_example and tutorial_cfc_offline.
725      - fix interpolation of atmphspheric CFC between Sorthern and Northern
726        hemisphere value.
727    o pkg/seaice:
728      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
729    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
730                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
731      - requires an additional time level that is stored in the pickup
732      - you can start with AB2 from a pickup without this time level with
733        pickupStrictlyMatch = .false.
734    
735    checkpoint64h (2013/05/26)
736    o pkg/cheapaml:
737      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
738        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
739      - consistent treatment of uWind,vWind location: assume everywhere in
740        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
741        (Note: was already the case for Tair,Qair advection);
742        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
743      - compute diabatic forcing only in the interior (excluding overlap regions)
744      - fill in array "Qsw" (for short-wave heating);
745      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
746        before any update (consistent with MITgcm state var diagnostics);
747      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
748        non periodic ; + adjusted for uWind,vWind (C-grid).
749    o pkg/seaice:
750      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
751        add explicitly pkg/exf in experiments that currently use pkg/seaice.
752      - allows to compile pkg/seaice without pkg/exf.
753    o tools/OAD_support:
754      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
755        of array "ourStepOf" in function rvNextAction (revolve.F90).
756    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
757      - change pkg name (to be used with other atmospheric physics pkg)
758        but by-pass CVS when making the new pkg so that we keep the CVS history.
759    o pkg/offline:
760      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
761        (previously called from pkg/dic_surfforcing_init.F)
762    o model/src:
763      - re-order sequence of calls within packages_init_variables.F, using
764        standard order, except for:
765         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
766         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
767    o new pkg: atm_phys
768      - add entry point and source code (previously in contrib
769          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
770        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
771      - re-order sequence of calls within packages_readparms.F,
772         packages_init_fixed.F and packages_write_pickup.F
773        (but skip packages_init_variables.F because of TAF issues).
774      - update contrib/*/atm_gray/ experiment.
775    o pkg/seaice (ITD code):
776      - simplify and fix the writing of pickup-files for ITD case
777    o pkg/seaice (ITD code):
778      - introduce floe size dependent lateral melt for ITD case;
779      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
780      - update seaice_itd experiment main output.
781    o pkg/thsice:
782      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
783        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
784        changed accordingly pkg/atm2d.
785    
786    checkpoint64g (2013/05/01)
787    o pkg/exf ALLOW_RUNOFTEMP
788      - if defined,  river and glacier runoff temperature can be read-in from
789        runoftempfile; runoftempfile needs to have same format as runofffile
790    o pkg/thsice (& pkg/bulk_force):
791      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
792        for energy content of Precip + RunOff & Evap (like with pkg/exf).
793      - change computation domain to always be the interior (without overlap).
794      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
795    o verification/tutorial_global_oce_biogeo:
796      - add preliminary OpenAD setup (still has problems)
797    o pkg/seaice:
798      - turn some parameters for choosing the convergence criterion of
799        the inexact Newton method (JFNK) into runtime parameters for convenience
800      - clean up seaice_calc_viscosities.F: remove/retire two options for
801        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
802        the results of lab_sea/input because a division has been replaced by
803        a multiplication with the reciprocal (sumNorm)
804      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
805        convergence of solver (changes results, of course), and to test some
806        new features
807    o model/src:
808      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
809      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
810      - move forcing adjustment (balancing surface forcing) in specific S/R
811        where might also be applied exchanges (if needed) to forcing arrays.
812    o pkg/shelfice:
813      - allow to specify the Ice-Shelf mass per unit area (instead of
814        shelficeLoadAnomaly) and do the conversion from one to the other
815      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
816        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
817        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
818        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
819      - update isomip experiment forward output (get machine truncation error
820        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
821    o verification/offline_exf_seaice:
822      revise data.seaice in input.thermo and input_ad and update results accordingly
823        HO = 0.2, SEAICE_areaLossFormula = 2,
824        SEAICE_growMeltByConv = .TRUE.,
825        SEAICE_doOpenWaterMelt = .TRUE.,
826      Improve consistency with input.thsice and fix the spurious 500m ice corners
827    o verification/global_ocean.cs32x15:
828      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
829        in icedyn (thsice+seaice-dyn) test and update output.
830    o verification/offline_exf_seaice:
831      - adjust list of tested variables (with testreport) and update
832        standard test output with better slection of monitored fields.
833    o pkg/cd_code:
834      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
835        experiment lab_sea.hb87
836    o tools/genmake2:
837      - change default makedepend from the system default to tools/xmakedepend:
838        When no makedepend is specified, select tools/xmakedepend it the test pass,
839        otherwise select the system default (if exist and pass the test) or
840        try to build cyrus-makedepend ; stop if none of the 3 works.
841    o pkg/exf & pkg/thsice:
842      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
843        for energy content of Precip + RunOff & Evap. Assumes:
844       1) Rain has same temp as Air.
845       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
846       3) Run-Off comes at the temp of surface water (with same Cp)
847       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
848        put directly into Latent Heat flux & should use water-vapor heat capacity.
849       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
850        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
851    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
852        (compile when SEAICE_ALLOW_JFNK is defined)
853    o pkg/thsice:
854      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
855        implementation): move THSICE_AVE call after the advection (called directly
856        from thsice_do_advect.F).
857    o verification/global_ocean.90x40x15 and OpenAD:
858      New experiment for OpenAD is identical to the one in input_ad except that
859        multiDimAdvection=.FALSE.,
860      There is still an issue with this.
861    o pkg/thsice:
862      - account for ice velocity (ocean relative velocity) in turbulent heat flux
863        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
864        and offline_exf_seaice (main test).
865    
866    checkpoint64f (2013/03/31)
867    o verification/OpenAD:
868      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
869    o verification/isomip, pkg/shelfice and OpenAD:
870      - add OpenAD setup to this exp and make shelfice package work with OpenAD
871    o verification/tutorial_global_oce_biogeo:
872      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
873    o verification/offline_exf_seaice:
874      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
875    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
876      - add OpenAD setup to this exp and make ptracers package work with OpenAD
877    o pkg/seaice/seaice_evp.F:
878       mask the asymmetric contribution of the ice-ocean stress (when
879       the turningAngle is non-zero) over open water to avoid stripes
880       in the EVP-solutions after many EVP-substeps. This does not change
881       the verification experiment (because turningAngle=0 in that experiment),
882       but will affect other EVP solutions with turningAngle.ne.0
883    o verification, AD & TLM output:
884      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
885        additions and multiplications which affect results at machine truncation
886        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
887        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
888        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
889        digits of matching.
890    o pkg/seaice:
891       modify lsr-algorithm so that it vectorizes AND converges by using a
892       "zebra" method: split vector loop into two with step size 2; this
893       solves a general convergence problem for the JFNK solver on a vector
894       computer. It has the potential to even improve convergence for
895       non-vector machines, but it does change the results so it is turned
896       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
897       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
898    
899    checkpoint64e (2013/03/05)
900    o pkg/ecco and several verification experiments:
901       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
902       from ecco package, and revert to unified routine in model/src/
903       Adjust verification experiments accordingly, especially gloal_oce_llc90
904       Should conclude long-standing work by Gael to reconsile the_main_loop with
905       ECCO and will enable OpenAD's revolve loop in ECCO setup.
906    o pkg/generic_advdiff:
907      - implement compressible flow method for multi-dim advection (similar to
908        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
909        TAF generates many recomputations) to use it; no yet coded with implicit
910        vertical advection.
911      - change experiment advect_cs (new output) and advect_xy (same output)
912        to test compressible flow multi-dim advection.
913    o pkg/generic_advdiff:
914      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
915        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
916    o pkg/seaice:
917      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
918        bug affects two verification experiments (lab_sea and lab_sea.hb87),
919        recover old (wrong) results by setting noSlipFac = 2. in
920        seaice_calc_strainrates.F;
921      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
922      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
923        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
924      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
925    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
926      - new subroutines seaice_lsr_tridiagu/v
927      - introduce loop bounds i/jmin/max to be able to use a restricted
928        additive Schwarz method, but not used for now.
929      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
930      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
931    o OpenAD support
932       Reorganize S/R call for overall time-stepping loop to facilitate
933       OpenAD revolve loop replacement
934       (new S/R main_do_loop.F)
935    o model/src:
936      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
937      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
938        ADAMS_BASHFORTH2.
939    o pkg/cheapaml:
940      - add new parameter (default=F, same as before) to disable full domain
941        (including land) periodicity in X & Y dir.
942      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
943        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
944        into single S/R CHEAPAML_TIMESTEP.
945    
946    checkpoint64d (2013/02/17)
947    o pkg/monitor (angular momentum):
948      - do not add Eta contribution to the total AM if using rigid-lid;
949      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
950      - horizontal discretisation: compute Zonal wind contribution separately for
951        each component (instead of from cell centered averaged) and use the 4
952        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
953      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
954        FreeSurf) if using vectorInvariant momentum.
955    o model/src (horizontal grid):
956      - move initialisation of all horizontal grid arrays to null value
957        from specific horizontal grid S/R to main S/R INI_GRID;
958      - add 2 new arrays to project model C-grid velocity on to zonal direction
959        (similar to AngleCosC & -AngleSinC but at U and V point location) and
960        compute them in S/R CALC_GRID_ANGLES.
961    o pkg/seaice: replace a hard coded parameter by a runtime parameter
962        SEAICE_JFNK_tolIter
963    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
964        preconditioner for JFNK (run LSR into the overlaps as far as possible,
965        i.e OLx/y-2, but overwrite the solution in the overlaps)
966      - extend loop range in seaice_calc_viscosity
967      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
968      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
969      - slightly modify loops in tridiagonal solver lsr-preconditioner
970      - by default remove the extra exchange in seaice_preconditioner with a
971        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
972      - modify offline_exf_seaice so that old results without RAS are reproduced
973        for output.dyn_jfnk.txt
974      in seaice_fgmres.F (unrelated to RAS)
975      - add a cpp-flag option for a re-ordered mapping (potentially more
976        efficient), but because this changes the results, turn it off by
977        default
978      - replace the save statement by local common blocks
979    o utils/matlab:
980      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
981      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
982        instead of local script "load_cs.m".
983    o pkg/seaice:
984      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
985        to the scalarProductMetric and the unrolling. By chance this does not
986        change the verification experiment, because of the particular domain
987        decomposition
988    o pkg/diagnostics:
989      - change default missing_value from UNSET_RL to -999.
990    o pkg/layers: improve vectorization of layers_fluxcalc.F
991      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
992        time spent in this routine by more than a factor of 3 on an NEC-SX8
993      - step 2: replace search algorithm by a bisection algorithm found in
994        Press et al. Numerical Recipes in Fortran. This algorithm can be
995        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
996        For now, use this algorithm only for TARGET_NEC_SX defined.
997      - moved the search algorithm into a separate subroutine, that is kept
998        within the same file for automatic inlining.
999      - modified catching potential errors
1000    o pkg/ecco:
1001      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
1002    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
1003      - modifications for ALLOW_GENTIM2D_CONTROL
1004      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
1005      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
1006      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
1007      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
1008    o model/src:
1009      - account for moist thermodynamics in (dry) potential temperature equation;
1010        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
1011        and cpl_aim+ocn.
1012      - also switch to standard compiler (gfortran, was using ifort previously)
1013        for fizhi-cs experiments reference output.
1014    o pkg/ctrl:
1015      - 1st step toward generic time-varying control variable (2D) via CPP option
1016        ALLOW_GENTIM2D_CONTROL
1017      - note new namelist ctrl_nml_genarr in data.ctrl
1018    o verification/global_ocean.cs32x15:
1019      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
1020        thsice calling sequence and update "output.icedyn.txt" output file.
1021    o pkg/ptracers:
1022      - from Ryan A.: code to allow to restart a tracer at regular time interval
1023        specifying a reset frequency and a reset-phase (for each tracers).
1024    o pkg/thsice:
1025      - implement new sequence of calls for thsice+seaice:
1026          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
1027          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
1028      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
1029        in CPP_OPTIONS.h) to recover old sequence;
1030      - update diagnostics for Intermediate State thsice diagnostics: now filled
1031        just before advection (instead of just after advection in old sequence);
1032      - update output of experiment offline_exf_seaice (standard test);
1033      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
1034        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
1035    o pkg/aim_v23:
1036      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
1037      - use standard pkg/mdsio routines to read & write CO2 pickup file;
1038      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
1039      - Implement new sequence of calls for seaice advection (with thsice and
1040        seaice diffusion): do ice advection after ice-Thermodynamic (previously
1041        was done before); change aim_do_physics.F (split the bi,bj loops block);
1042      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
1043    o pkg/thsice:
1044      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
1045        where just seaice diffusion is used without seaice-dynamics.
1046    
1047    checkpoint64c (2013/01/18)
1048    o pkg/seaice:
1049      - add a parameter JFNKres_tFac that can replace JFNKres_t
1050        (= JFNKres_tFac*JFNKresidual before JFNK solver)
1051      - add a line search option to the JFNK solver
1052      - move update of u/vIce and computation of initial residual into a separate
1053        routine (same file); makes the code a little easier to read (?)
1054      - the line search requires computation of the residual and for some reason
1055        I cannot do the update of u/vIce at the beginning of the Newton loop
1056        without changing the results, so we move computation of the new residual
1057        also to the end of the Newton loop, even without the line search
1058    o pkg/mdsio:
1059      - write missing value (corresponding to undefined array value) to meta files;
1060        skip this if missing value is one (UNSET_RL would be a better value for the
1061        case of undefined missing value but it's current the default missing-value);
1062        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
1063    o pkg/exf & thsice:
1064      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
1065        diagnostics) even when SHORTWAVE_HEATING is #undef;
1066    o verification/cfc_example:
1067      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
1068        illustrate how to use it).
1069    o verification/offline_exf_seaice:
1070      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
1071        files to only one time-record.
1072      in input.thermo: narrow the 2 bands of low initial ice-concentration near
1073        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
1074        snapshot output; same mcPheePiston value as in thsice with
1075        surf-current=0.2m/s.
1076      in input.thsice: similar set-up as in input.thermo (channel with same seaice
1077        initial conditions).
1078    o verification/cfc_example:
1079      - update file "data" with more standard choice (default rotationPeriod,
1080        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
1081        set deltaTFreeSurf to deltaTtracer) and update the output.
1082    o pkg/layers:
1083      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
1084      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
1085    o verification/offline_exf_seaice:
1086      - set all {field}period to zero for constant-in-time forcing (not tested
1087        anywhere else).
1088    o verification/offline_exf_seaice:
1089      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
1090      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
1091    o model/src:
1092      - implement Finite-Volume method for (hydrostatic) presure gradient
1093        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
1094    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
1095      - In order to be compatible with the default EVP code, this requires changing
1096        the EVP code around a little; and because any small change immediately
1097        breaks the lab_sea.hb87 verification experiment, the reference output is
1098        updated two times (each time the remaining aggrement was only 2 digits):
1099        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
1100        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
1101        The adjoint test lab_sea.evp also needed to be updated.
1102      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
1103        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
1104        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
1105        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
1106        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
1107        kept obscure, because I need to test it a little more.
1108    o pkg/cheapaml:
1109      - fix few incorrect type (_RL/_RS) in subroutine calls.
1110    o pkg/seaice:
1111      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
1112        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
1113    o model/src:
1114      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
1115        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
1116        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
1117    o pkg/cheapaml:
1118      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
1119        update output of experiment cheapAML_box.
1120      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
1121        and set them only in one place (cheapaml_readparms.F).
1122      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
1123      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
1124        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
1125    o model/src/the_main_loop.F:
1126      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
1127    o pkg/seaice:
1128      - remove legacy branch code.
1129      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
1130    o verification/*/code*/SEAICE_OPTIONS.h:
1131      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
1132        SEAICE_CAP_HEFF).
1133  o pkg/cheapaml:  o pkg/cheapaml:
1134    - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time    - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
1135      to load new forcing fields.      to load new forcing fields.

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