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revision 1.1625 by jmc, Sat Mar 17 14:58:45 2012 UTC revision 1.1873 by jmc, Mon Jun 3 23:28:44 2013 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/seaice:
8      - allow to use seaice dynamics without pkg/exf (e.g., using pkg/cheapaml)
9    o pkg/seaice: add Adams-Bashforth2 time discretization for ice dynamics;
10                  so far only for JFNK-solver, turn on with SEAICEuseAB2 = .TRUE.
11      - requires an additional time level that is stored in the pickup
12      - you can start with AB2 from a pickup without this time level with
13        pickupStrictlyMatch = .false.
14    
15    checkpoint64h (2013/05/26)
16    o pkg/cheapaml:
17      - replace one ()**.5 with SQRT + use temp var "cdu = tau/Du" (coare3_flux);
18        affect machine truncation (but exp cheapAML_box still pass with 13 digits).
19      - consistent treatment of uWind,vWind location: assume everywhere in
20        pkg/cheapaml that they are on C-grid (@ uVel,vVel location)
21        (Note: was already the case for Tair,Qair advection);
22        add option (INCONSISTENT_WIND_LOCATION) to recover old results.
23      - compute diabatic forcing only in the interior (excluding overlap regions)
24      - fill in array "Qsw" (for short-wave heating);
25      - add diagnostic for precip ; fill-in diagnostics for cheapAML state vars
26        before any update (consistent with MITgcm state var diagnostics);
27      - cheapaml_fields_load.F & cheapaml_init_varia.F : only fill outer edges if
28        non periodic ; + adjusted for uWind,vWind (C-grid).
29    o pkg/seaice:
30      - remove dependence of pkg/seaice versus pkg/exf (file: pkg/pkg_depend) and
31        add explicitly pkg/exf in experiments that currently use pkg/seaice.
32      - allows to compile pkg/seaice without pkg/exf.
33    o tools/OAD_support:
34      - use a local copy (ourRWCPinBd) to ensure index ourRWCP stays within bounds
35        of array "ourStepOf" in function rvNextAction (revolve.F90).
36    o pkg/aim_compon_interf renamed to pkg/atm_compon_interf
37      - change pkg name (to be used with other atmospheric physics pkg)
38        but by-pass CVS when making the new pkg so that we keep the CVS history.
39    o pkg/offline:
40      - call OFFLINE_FIELDS_LOAD from pkg/offline/offline_init_varia.F
41        (previously called from pkg/dic_surfforcing_init.F)
42    o model/src:
43      - re-order sequence of calls within packages_init_variables.F, using
44        standard order, except for:
45         DIAGNOSTICS_INIT_VARIA and OFFLINE_INIT_VARIA (called @ the top),
46         CTRL_MAP_INI and OBCS_INIT_VARIABLES (called @ the bottom)
47    o new pkg: atm_phys
48      - add entry point and source code (previously in contrib
49          verification_other/atm_gray/code_gray/) for new pkg "atm_phys"
50        (atmospheric physics pkg from P. O'Gorman and T. Schneider, JCl, 2008).
51      - re-order sequence of calls within packages_readparms.F,
52         packages_init_fixed.F and packages_write_pickup.F
53        (but skip packages_init_variables.F because of TAF issues).
54      - update contrib/*/atm_gray/ experiment.
55    o pkg/seaice (ITD code):
56      - simplify and fix the writing of pickup-files for ITD case
57    o pkg/seaice (ITD code):
58      - introduce floe size dependent lateral melt for ITD case;
59      - cleaning (avoid division by zero, change to f77 syntax, remove tabs)
60      - update seaice_itd experiment main output.
61    o pkg/thsice:
62      - remove snowPrc from common block THSICE_FLUX, in THSICE_VARS.h and
63        declared it locally (without bi,bj) in thsice_main.F & aim_do_physics.F;
64        changed accordingly pkg/atm2d.
65    
66    checkpoint64g (2013/05/01)
67    o pkg/exf ALLOW_RUNOFTEMP
68      - if defined,  river and glacier runoff temperature can be read-in from
69        runoftempfile; runoftempfile needs to have same format as runofffile
70    o pkg/thsice (& pkg/bulk_force):
71      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
72        for energy content of Precip + RunOff & Evap (like with pkg/exf).
73      - change computation domain to always be the interior (without overlap).
74      - fix bug (wrong overlap) when using EXF and stressReduction > 0.
75    o verification/tutorial_global_oce_biogeo:
76      - add preliminary OpenAD setup (still has problems)
77    o pkg/seaice:
78      - turn some parameters for choosing the convergence criterion of
79        the inexact Newton method (JFNK) into runtime parameters for convenience
80      - clean up seaice_calc_viscosities.F: remove/retire two options for
81        SEAICetaZmethod (1,2), introduce area weighting for method 3; this changes
82        the results of lab_sea/input because a division has been replaced by
83        a multiplication with the reciprocal (sumNorm)
84      - modify offline_exf_seaice/input.dyn_jfnk/data.seaice to improve
85        convergence of solver (changes results, of course), and to test some
86        new features
87    o model/src:
88      - remove unused (since Aug 2006) S/R SET_WRITE_GLOBAL_PICKUP and its call.
89      - remove unused forcing field "dQdT" and associated parameter "dQdTFile".
90      - move forcing adjustment (balancing surface forcing) in specific S/R
91        where might also be applied exchanges (if needed) to forcing arrays.
92    o pkg/shelfice:
93      - allow to specify the Ice-Shelf mass per unit area (instead of
94        shelficeLoadAnomaly) and do the conversion from one to the other
95      - move loading from file of shelficeLoadAnomaly from SHELFICE_INIT_VARIA
96        to SHELFICE_INIT_FIXED: (a) avoid some TAF recompution issues and
97        (b) will be loaded in time (before calling INI_PRESSURE) in case it is
98        needed in phi0surf for initial pressure calculation when useDynP_inEos_Zc
99      - update isomip experiment forward output (get machine truncation error
100        from conversion shelficeLoadAnomaly -> shelficeMass -> shelficeLoadAnomaly)
101    o verification/offline_exf_seaice:
102      revise data.seaice in input.thermo and input_ad and update results accordingly
103        HO = 0.2, SEAICE_areaLossFormula = 2,
104        SEAICE_growMeltByConv = .TRUE.,
105        SEAICE_doOpenWaterMelt = .TRUE.,
106      Improve consistency with input.thsice and fix the spurious 500m ice corners
107    o verification/global_ocean.cs32x15:
108      - set Energy Reference Level to liq. water @ 0 degC: temp_EvPrRn=0.,
109        in icedyn (thsice+seaice-dyn) test and update output.
110    o verification/offline_exf_seaice:
111      - adjust list of tested variables (with testreport) and update
112        standard test output with better slection of monitored fields.
113    o pkg/cd_code:
114      - swtich off Adams-Bashforth on the 1rst iteration. Update output of
115        experiment lab_sea.hb87
116    o tools/genmake2:
117      - change default makedepend from the system default to tools/xmakedepend:
118        When no makedepend is specified, select tools/xmakedepend it the test pass,
119        otherwise select the system default (if exist and pass the test) or
120        try to build cyrus-makedepend ; stop if none of the 3 works.
121    o pkg/exf & pkg/thsice:
122      - In case Energy-Reference-Level (ERL) is used (temp_EvPrRn=0), account
123        for energy content of Precip + RunOff & Evap. Assumes:
124       1) Rain has same temp as Air.
125       2) Snow has no heat capacity (consistent with seaice & thsice pkgs)
126       3) Run-Off comes at the temp of surface water (with same Cp)
127       4) Evap over ocean is released to the Atmos @ surf-temp (=SST); should be
128        put directly into Latent Heat flux & should use water-vapor heat capacity.
129       5) Evap over snow/seaice (pkg/thsice) assumes constant Lf+Lv (consistent
130        with snow having no Cp) => water vapor is released to Atmos @ 0^oC (=ERL).
131    o pkg/seaice: simplify the use of CPP flags in JFNK-related files
132        (compile when SEAICE_ALLOW_JFNK is defined)
133    o pkg/thsice:
134      - fix oceanic flux diagnostics & timeave (left from new sequence of calls
135        implementation): move THSICE_AVE call after the advection (called directly
136        from thsice_do_advect.F).
137    o verification/global_ocean.90x40x15 and OpenAD:
138      New experiment for OpenAD is identical to the one in input_ad except that
139        multiDimAdvection=.FALSE.,
140      There is still an issue with this.
141    o pkg/thsice:
142      - account for ice velocity (ocean relative velocity) in turbulent heat flux
143        at the base of the ice; update output of global_ocean.cs32x15 (icedyn)
144        and offline_exf_seaice (main test).
145    
146    checkpoint64f (2013/03/31)
147    o verification/OpenAD:
148      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
149    o verification/isomip, pkg/shelfice and OpenAD:
150      - add OpenAD setup to this exp and make shelfice package work with OpenAD
151    o verification/tutorial_global_oce_biogeo:
152      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
153    o verification/offline_exf_seaice:
154      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
155    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
156      - add OpenAD setup to this exp and make ptracers package work with OpenAD
157    o pkg/seaice/seaice_evp.F:
158       mask the asymmetric contribution of the ice-ocean stress (when
159       the turningAngle is non-zero) over open water to avoid stripes
160       in the EVP-solutions after many EVP-substeps. This does not change
161       the verification experiment (because turningAngle=0 in that experiment),
162       but will affect other EVP solutions with turningAngle.ne.0
163    o verification, AD & TLM output:
164      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
165        additions and multiplications which affect results at machine truncation
166        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
167        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
168        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
169        digits of matching.
170    o pkg/seaice:
171       modify lsr-algorithm so that it vectorizes AND converges by using a
172       "zebra" method: split vector loop into two with step size 2; this
173       solves a general convergence problem for the JFNK solver on a vector
174       computer. It has the potential to even improve convergence for
175       non-vector machines, but it does change the results so it is turned
176       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
177       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
178    
179    checkpoint64e (2013/03/05)
180    o pkg/ecco and several verification experiments:
181       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
182       from ecco package, and revert to unified routine in model/src/
183       Adjust verification experiments accordingly, especially gloal_oce_llc90
184       Should conclude long-standing work by Gael to reconsile the_main_loop with
185       ECCO and will enable OpenAD's revolve loop in ECCO setup.
186    o pkg/generic_advdiff:
187      - implement compressible flow method for multi-dim advection (similar to
188        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
189        TAF generates many recomputations) to use it; no yet coded with implicit
190        vertical advection.
191      - change experiment advect_cs (new output) and advect_xy (same output)
192        to test compressible flow multi-dim advection.
193    o pkg/generic_advdiff:
194      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
195        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
196    o pkg/seaice:
197      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
198        bug affects two verification experiments (lab_sea and lab_sea.hb87),
199        recover old (wrong) results by setting noSlipFac = 2. in
200        seaice_calc_strainrates.F;
201      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
202      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
203        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
204      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
205    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
206      - new subroutines seaice_lsr_tridiagu/v
207      - introduce loop bounds i/jmin/max to be able to use a restricted
208        additive Schwarz method, but not used for now.
209      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
210      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
211    o OpenAD support
212       Reorganize S/R call for overall time-stepping loop to facilitate
213       OpenAD revolve loop replacement
214       (new S/R main_do_loop.F)
215    o model/src:
216      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
217      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
218        ADAMS_BASHFORTH2.
219    o pkg/cheapaml:
220      - add new parameter (default=F, same as before) to disable full domain
221        (including land) periodicity in X & Y dir.
222      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
223        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
224        into single S/R CHEAPAML_TIMESTEP.
225    
226    checkpoint64d (2013/02/17)
227    o pkg/monitor (angular momentum):
228      - do not add Eta contribution to the total AM if using rigid-lid;
229      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
230      - horizontal discretisation: compute Zonal wind contribution separately for
231        each component (instead of from cell centered averaged) and use the 4
232        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
233      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
234        FreeSurf) if using vectorInvariant momentum.
235    o model/src (horizontal grid):
236      - move initialisation of all horizontal grid arrays to null value
237        from specific horizontal grid S/R to main S/R INI_GRID;
238      - add 2 new arrays to project model C-grid velocity on to zonal direction
239        (similar to AngleCosC & -AngleSinC but at U and V point location) and
240        compute them in S/R CALC_GRID_ANGLES.
241    o pkg/seaice: replace a hard coded parameter by a runtime parameter
242        SEAICE_JFNK_tolIter
243    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
244        preconditioner for JFNK (run LSR into the overlaps as far as possible,
245        i.e OLx/y-2, but overwrite the solution in the overlaps)
246      - extend loop range in seaice_calc_viscosity
247      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
248      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
249      - slightly modify loops in tridiagonal solver lsr-preconditioner
250      - by default remove the extra exchange in seaice_preconditioner with a
251        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
252      - modify offline_exf_seaice so that old results without RAS are reproduced
253        for output.dyn_jfnk.txt
254      in seaice_fgmres.F (unrelated to RAS)
255      - add a cpp-flag option for a re-ordered mapping (potentially more
256        efficient), but because this changes the results, turn it off by
257        default
258      - replace the save statement by local common blocks
259    o utils/matlab:
260      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
261      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
262        instead of local script "load_cs.m".
263    o pkg/seaice:
264      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
265        to the scalarProductMetric and the unrolling. By chance this does not
266        change the verification experiment, because of the particular domain
267        decomposition
268    o pkg/diagnostics:
269      - change default missing_value from UNSET_RL to -999.
270    o pkg/layers: improve vectorization of layers_fluxcalc.F
271      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
272        time spent in this routine by more than a factor of 3 on an NEC-SX8
273      - step 2: replace search algorithm by a bisection algorithm found in
274        Press et al. Numerical Recipes in Fortran. This algorithm can be
275        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
276        For now, use this algorithm only for TARGET_NEC_SX defined.
277      - moved the search algorithm into a separate subroutine, that is kept
278        within the same file for automatic inlining.
279      - modified catching potential errors
280    o pkg/ecco:
281      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
282    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
283      - modifications for ALLOW_GENTIM2D_CONTROL
284      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
285      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
286      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
287      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
288    o model/src:
289      - account for moist thermodynamics in (dry) potential temperature equation;
290        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
291        and cpl_aim+ocn.
292      - also switch to standard compiler (gfortran, was using ifort previously)
293        for fizhi-cs experiments reference output.
294    o pkg/ctrl:
295      - 1st step toward generic time-varying control variable (2D) via CPP option
296        ALLOW_GENTIM2D_CONTROL
297      - note new namelist ctrl_nml_genarr in data.ctrl
298    o verification/global_ocean.cs32x15:
299      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
300        thsice calling sequence and update "output.icedyn.txt" output file.
301    o pkg/ptracers:
302      - from Ryan A.: code to allow to restart a tracer at regular time interval
303        specifying a reset frequency and a reset-phase (for each tracers).
304    o pkg/thsice:
305      - implement new sequence of calls for thsice+seaice:
306          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
307          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
308      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
309        in CPP_OPTIONS.h) to recover old sequence;
310      - update diagnostics for Intermediate State thsice diagnostics: now filled
311        just before advection (instead of just after advection in old sequence);
312      - update output of experiment offline_exf_seaice (standard test);
313      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
314        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
315    o pkg/aim_v23:
316      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
317      - use standard pkg/mdsio routines to read & write CO2 pickup file;
318      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
319      - Implement new sequence of calls for seaice advection (with thsice and
320        seaice diffusion): do ice advection after ice-Thermodynamic (previously
321        was done before); change aim_do_physics.F (split the bi,bj loops block);
322      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
323    o pkg/thsice:
324      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
325        where just seaice diffusion is used without seaice-dynamics.
326    
327    checkpoint64c (2013/01/18)
328    o pkg/seaice:
329      - add a parameter JFNKres_tFac that can replace JFNKres_t
330        (= JFNKres_tFac*JFNKresidual before JFNK solver)
331      - add a line search option to the JFNK solver
332      - move update of u/vIce and computation of initial residual into a separate
333        routine (same file); makes the code a little easier to read (?)
334      - the line search requires computation of the residual and for some reason
335        I cannot do the update of u/vIce at the beginning of the Newton loop
336        without changing the results, so we move computation of the new residual
337        also to the end of the Newton loop, even without the line search
338    o pkg/mdsio:
339      - write missing value (corresponding to undefined array value) to meta files;
340        skip this if missing value is one (UNSET_RL would be a better value for the
341        case of undefined missing value but it's current the default missing-value);
342        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
343    o pkg/exf & thsice:
344      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
345        diagnostics) even when SHORTWAVE_HEATING is #undef;
346    o verification/cfc_example:
347      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
348        illustrate how to use it).
349    o verification/offline_exf_seaice:
350      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
351        files to only one time-record.
352      in input.thermo: narrow the 2 bands of low initial ice-concentration near
353        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
354        snapshot output; same mcPheePiston value as in thsice with
355        surf-current=0.2m/s.
356      in input.thsice: similar set-up as in input.thermo (channel with same seaice
357        initial conditions).
358    o verification/cfc_example:
359      - update file "data" with more standard choice (default rotationPeriod,
360        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
361        set deltaTFreeSurf to deltaTtracer) and update the output.
362    o pkg/layers:
363      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
364      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
365    o verification/offline_exf_seaice:
366      - set all {field}period to zero for constant-in-time forcing (not tested
367        anywhere else).
368    o verification/offline_exf_seaice:
369      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
370      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
371    o model/src:
372      - implement Finite-Volume method for (hydrostatic) presure gradient
373        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
374    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
375      - In order to be compatible with the default EVP code, this requires changing
376        the EVP code around a little; and because any small change immediately
377        breaks the lab_sea.hb87 verification experiment, the reference output is
378        updated two times (each time the remaining aggrement was only 2 digits):
379        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
380        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
381        The adjoint test lab_sea.evp also needed to be updated.
382      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
383        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
384        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
385        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
386        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
387        kept obscure, because I need to test it a little more.
388    o pkg/cheapaml:
389      - fix few incorrect type (_RL/_RS) in subroutine calls.
390    o pkg/seaice:
391      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
392        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
393    o model/src:
394      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
395        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
396        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
397    o pkg/cheapaml:
398      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
399        update output of experiment cheapAML_box.
400      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
401        and set them only in one place (cheapaml_readparms.F).
402      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
403      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
404        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
405    o model/src/the_main_loop.F:
406      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
407    o pkg/seaice:
408      - remove legacy branch code.
409      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
410    o verification/*/code*/SEAICE_OPTIONS.h:
411      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
412        SEAICE_CAP_HEFF).
413    o pkg/cheapaml:
414      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
415        to load new forcing fields.
416      - add missing "_d 0" where it's needed; + some editing (improve indentation).
417      - remove switch to "-r8" compiler option (no longer needed) in verification
418        cheapAML_box, keep same output (small trucation error differences).
419    o verification/offline_exf_seaice:
420      - add thermodynamics only test.
421    o verification/cheapAML_box:
422      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
423        keep same output (same 14 digits for cg2d).
424      - switch on "-r8" compiler option (some numerical values are missing
425        the "_d 0") and update output (only 6 digits for cg2d were preserved).
426    
427    checkpoint64b (2012/12/24)
428    o pkg/cheapaml:
429      - remove un-used variables (Qnet,EmPmR) from pickup files.
430      - store tendency of advected variables into cheapaml pickup file
431        and fix the AB-2 restart.
432    o verification/offline_exf_seaice and lab_sea adjoint:
433      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
434      - switch to 4 time steps in offline, consistent with lab_sea.
435      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
436      - update results after change of experiment seaice.
437    o pkg/seaice:
438      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
439        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
440        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
441        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
442    o model/src:
443      - add run-time parameter to select CG2D solver minimum-residual solution
444        (in case of a poor convergence).
445    o pkg/seaice/seaice_lsr.F
446      - move calculation of matrix coefficients into new
447        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
448        file; the main purpose of this change is to be able to reuse the code
449        in S/R SEAICE_PRECONDITIONER
450      - modify the computation of the residual so that the mass of sea-ice
451        is not used twice; this simplifies the calculations, but since
452        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
453        not tested in testreport---this does not affect the testreport results.
454    o verification/seaice_obcs:
455      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
456        verification/lab_sea/input.salt_plume; changes results/output.txt*
457    o model/src:
458      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
459    o pkg/seaice:
460      - improve description of parameters in seaice_fgmres.F and start
461        cleaning up the code
462      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
463        second argument
464      - add a metric based on grid cell area to SEAICE_SCALPROD; update
465        results of offline_exf_seaice.dyn_jfnk
466      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
467    o pkg/aim_v23:
468      - fix an other bug in dissipation heating (grid-cell area was missing).
469    o model/src + pkg/seaice:
470      - add global (multi-tile) linear solver for pair of tri-diagonal system
471        along X and Y lines, respectively for U and V component.
472        Note: 1) MPI and cube-exchange not yet coded.
473            2) probably not accurate for poorly conditioned / large size problem.
474      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
475        default: not compiled and not used.
476    o pkg/seaice:
477      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
478        introduce bi/bj loops and use global_sum_tile_rl instead of
479        mpi_allreduce in seaice_fgmres.F
480      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
481      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
482      - add a verification experiment for JFNK in offline_exf_seaice
483    o verification:
484      - change (for now, only fwd test) offline_exf_seaice experiment:
485        use a re-entrant channel with idealized coastline (trapezoidal shape)
486        at southern boundary to explore seaice dynamics and thermodynamics
487        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
488        secondary test (input.thsice) use thermodynamics only with SST relaxation.
489      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
490    o pkg/exf:
491      - disable "sstExtrapol" when Nr=1
492    o verification:
493      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
494        to test pkg/cheapaml.
495    o pkg/aim_v23 & pkg/shap_filt:
496      - fix dissipation heating (erroneous gravity multiplication factor).
497    o pkg/seaice:
498      - remove unused field pressPre from jfnk solver
499      - rename two subroutines in seaice_preconditioner.F
500    o eesupp/src:
501       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
502    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
503       - remove wrong parts of the rhs and the lhs (were in there
504         because I did not understand the concept of this preconditioner)
505       - add an exchange between u- and v-sweep. This increases communication
506         by a factor of two but improves the convergence of jfnk. Ideally,
507         one would like the u- and v-sweep to be independent. So far within
508         undocumented ifdefs
509       - reorganize the extra computations for printing the residuals
510    o tools/genmake2:
511      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
512        since it's not necessary (and was preventing to use MNC in some cases).
513    
514    checkpoint64a (2012/11/16)
515    o pkg/autodiff:
516      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
517        autodiff_readparms.F no longer depends on calling order (within
518        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
519        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
520        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
521    o pkg/obcs:
522      - adding tidal velocity forcing capability to obcs
523        for usage example, see verification/seaice_obcs/input.tides
524    o pkg/seaice:
525      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
526        SEAICE_LSRrelaxU/V
527      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
528    o pkg/aim_v23:
529      - implement heating from friction (bottom friction and stratospheric drag).
530    o pkg/shap_filt:
531      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
532        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
533    o model/src:
534      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
535        time-constant addMass field from file (addMassFile);
536      - support for heating due to friction (and Kinetic Energy dissipation):
537        add option, run-time switch and 3-D field array + support code ; each pkg
538        or S/R can add heating contribution (if there is a sink of KE); the sum is
539        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
540    o pkg/seaice:
541      - complete merge of ITD code into seaice_growth.F
542        from MITgcm_contrib/torge/itd/code/
543        no verification so far, but Torge Martin tested
544        "1-D test case and Beaufort set up;
545        deliver okay results after 1 model year."
546      - complete merge of SEAICE_SIZE.h into all relevant routines
547      - move computation of eta at Z-points into calc_viscosities
548        + introduce global field etaZ
549        + add different methods for computing etaZ, for now the old
550          method (simple averages of eta to Z-points) is hardwired
551        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
552          seaice_preconditioner
553      - simplify computations for SEAICE_ZETA_SMOOTHREG
554      - seaice_preconditioner:
555        + replace one remaining press by pressLoc (mistake)
556        + adjust printing of residuals
557      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
558        + add (SEAICE.h) and rename some counters (initiliased in
559          seaice_init_fixed.F)
560        + add _BEGIN/END_MASTER (myThid)  around print statements
561        + print total number of iterations and failures over SEAICE_monFreq
562          interval to STDOUT
563      - move control over output-messages by fgmres to seaice_jfnk to save
564        some operations
565      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
566        in order to make restarts with sol .ne. zero (fgmres with restarts)
567        (seaice_jfnk.F, seaice_fgmres.F)
568      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
569        a serious convergence problem when open boundaries are involved
570    o pkg/ggl90: fix computation of control volumes for the case of
571      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
572      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
573    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
574    o pkg/autodiff
575      - Add inAdMode switch for SEAICEuseDYNAMICS:
576        SEAICEuseDYNAMICSinAdMode
577        (extend logic in ADAUTODIFF_INADMODE_SET)
578    o pkg/seaice
579      - Step 1 of merging ice-thickness distribution (ITD) code from
580        MITgcm_contrib/torge/itd/ (author: Torge Martin)
581        The code implements concept laid out in Thorndike et al. (1975);
582        code is enabled via CPP flag SEAICE_ITD
583        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
584        code is not complete yet!!
585      - SEAICE_SIZE.h now included in almost all seaice routines
586    o verification (using seaice):
587      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
588        global_ocean.cs32x15.seaice ; update results.
589      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
590      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
591        offline_exf_seaice (previously compiling B-grid).
592    o pkg/exf:
593      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
594        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
595        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
596    o pkg/layers (adjust changes from Sept 19):
597      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
598        this allows to remove "layers_maxNum" dimension from all layers arrays.
599    o pkg/layers (adjust changes from Sept 19):
600      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
601      - snap-shot extended to all type of layers (not just the 1rst type);
602      - remove layers variables when corresponding CPP option is undef.
603    o pkg/layers:
604      - rename pkg/layers variable and add new output (layer exist & un-weighted
605        velocity in layer)
606    o pkg/seaice:
607      - simplify (?) ocean-drag coefficent computations by using
608        the same routine in all three solvers (saves some code lines)
609      - remove global fields DRAGA and DRAGS from C-grid code and
610        declare them locally in lsr.F (the only place where they are
611        still used)
612      - update AD output of lab_sea.evp (very sensitive anyway).
613    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
614      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
615      and SEAICEuseJFNK=.true. A few things to note:
616      - involves a FGMRES, that is parallel but very inefficient,
617        because of many scalar products (global sums) in the Gram-Schmidt
618        orthogonalization method. Needs to be replaced. Original code
619        from J.-F. Lemieux
620      - preconditioner for FGMRES is a stripped down version of LSOR
621      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
622        preconditioner. For the preconditioner, the default is set to 10.
623      - Jacobian times vector is computed with finite differences
624      - marginally related to JFNK-solver: add a smooth regularization for
625        zeta with tanh that will improve convergence (Lemieux and Tremblay,
626        2009) for any implicit solver (not implemented for EVP because EVP
627        does not need this regularization in the first place). Define
628        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
629    o eesupp/src:
630      - check in genmake2 that intrinsic S/R flush is available.
631      - add S/R to flush IO unit (if intrinsic S/R flush is available)
632      - flush standard & error msg unit before MPI termination
633      - if debugMode, flush IO unit after printing msg
634    o pkg/ctrl:
635      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
636        to ctrl_set_unpack_xyz.
637    
638    checkpoint64 (2012/10/09)
639    o pkg/shelfice
640      - in mom_fluxform.F, mom_vecinv.F:
641        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
642        Bug fix KappaRU -> KappaRV
643        does not change verification/isomip but may change other setups
644        (presumably constant KappaRU=KappaRV)
645      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
646    o pkg/obcs:
647      - fixed some indexing bugs in obcs_seaice_sponge.F
648      - added obcs relaxation subroutines for HSALT and HSNOW
649      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
650    o pkg/seaice:
651      - add "multicategory" parameterization for snow in analogy to ice,
652        default is off for now.
653    o pkg/obcs:
654      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
655        see verification/seaice_obcs/input.seaiceSponge for example application.
656      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
657        index setting by master-thread. This fix multi-threads Pb in previous modifs.
658    o pkg/layers :
659      - add diagnostics to pkg/layers
660      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
661        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
662    o pkg/generic_advdiff/gad_implicit_r.F :
663      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
664    o pkg/seaice/seaice_growth.F:
665      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
666    o pkg/obcs:
667      - change default setting of OBCS_UVICE_OLD from defined to undef;
668      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
669        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
670      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
671      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
672        with Southern & Western OB at a tile edge (at least in a simple set-up).
673    o pkg/obcs:
674      - change settings of OB index in case OB coincides with tile edge (shared by
675        2 tiles), so that common OB location is registered by both tiles (instead of
676        only 1). However, for Southern and Western OB, index value = 0 is not
677        recognized as valid OB index (=default null value) and needs to be fixed.
678      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
679      - new parameter "OB_indexNone" for null index value (for now, still zero)
680        to replace hard-coded null index value of zero.
681    o pkg/exch2:
682      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
683        always check buffer-size (but outside the loop); move checking for valid
684        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
685        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
686    o pkg/ctrl (pack & unpack):
687      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
688        (locally defined) for different variables (+ remove the variable-specific
689        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
690        (to be extended to other local file names in ctrl.h).
691    o pkg/flt:
692      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
693    o pkg/mdsio:
694      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
695    o tools/genmake2:
696      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
697        (added by Alistair in version 1.51 for building without make depend);
698      - remove Header files list (H_SRC_FILES) from the dependence of targets
699         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
700        place in version 1.23): this save going through staf when unrelated header
701        file has been modified.
702       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
703        "make depend" step, still need to do "make links" before "make adtaf".
704    o eesupp/src (+ few pkg src files) & genmake2:
705      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
706      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
707      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
708         upper/lower case ; account for space between "#" and undef/define)
709    o pkg/flt (with exch2):
710      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
711      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
712    
713    checkpoint63s (2012/09/05)
714    o pkg/ecco:
715      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
716      - add more relevant #ifdef ALLOW_SMOOTH ones.
717      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
718    o pkg/ctrl:
719      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
720        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
721      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
722        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
723        ctrlSmoothCorrel3D (new).
724        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
725      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
726      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
727        controls when useAtmWind, and vice versa.
728      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
729      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
730          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
731      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
732          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
733      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
734        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
735    o pkg/smooth:
736      - remove un-necessary includes.
737      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
738        Those CPP options were never defined, and not necessary.
739    o model/src:
740      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
741      - standard treatment of useSMOOTH.
742    o pkg/autodiff:
743      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
744        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
745    o pkg/exch2:
746      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
747        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
748      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
749        and tiles to process mapping.
750      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
751        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
752        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
753        from w2_eeboot.F to w2_readparms.F.
754    o eesupp/src:
755      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
756        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
757        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
758      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
759        is defined (remove condition on usingMPI) to match cases where MPI_INIT
760        has been called.
761      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
762      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
763        (so that on 1 proc, get same myPid independently of usingMPI)
764      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
765        useCubedSphereExchange with EXCH-1 (safer).
766      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
767    o pkg/ggl90:
768      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
769        used in ALLOW_GGL90_SMOOTH code.
770    o pkg/flt:
771      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
772        floats at the Southern end of the domain).
773    o eesupp/inc:
774      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
775        but not used (and not to be used) anywhere, just for documentation.
776    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
777      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
778        a) can damage previously written records in any other multi-record files.
779        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
780    o tools/genmake2:
781      - define variable MAKE within Makefile and use it in place of 'make';
782      - update AD_CONFIG.h (if needed) before building any of the executable
783        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
784        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
785      - always print usual warning comment 'this file is automatically generated'
786        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
787    o pkg/cheapaml:
788      - updated to correspond to the code used in accepted paper (Nico Wienders).
789    o pkg/exf:
790        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
791        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
792        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
793    o pkg/exf, autodiff, ctrl, ecco and seaice:
794        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
795    o pkg/ctrl, ecco:
796        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
797        Depending on useAtmWind, one is inactive, and the other is active (see
798        exf_getffields.F/exf_getsurfacefluxes.F).
799    o tools/genmake2:
800      - improve error msg when failing in 2nd test of check_for_broken_Ff
801      - fix option '-makefile' short-name (-mf according to genmake2 -help)
802      - source local config file "genmake_local" just after processing the genmake2
803        command arguments (previously done before processing arg).
804    o pkg/grdchk:
805      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
806        to this routine from cost_final has been dropped in g_cost_final)
807      - improve printed information (more explicit msg, no longer using "print *,"
808         fix fcpertminus printed value).
809    o model/src:
810      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
811        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
812        this prevents getting cost-funct reset in adinitialise_varia recomputations.
813    o pkg/dic:
814      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
815        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
816    o pkg/grdchk:
817      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
818      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
819    o pkg/autodiff/ctrl/grdchk :
820      - attempt to sort out what works and what does not,
821        with regard to I/O, and to warn/stop accordingly.
822    o pkg/grdchk:
823      - attempt to fix grdchk in the case of useSingleCpuIO.
824      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
825       statements were moved from grdchk_main.F and into
826       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
827      - a global sum is applied to record numbers icvrec/layer
828       out of grdchk_loc so that they be passed to I/O routines.
829    o pkg/smooth:
830      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
831        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
832    o verification/testreport:
833      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
834      - can also use compressed (gzip) reference output file;
835      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
836        to be easier to collect by testreport.
837      - update existing TLM output (half out-of-date by more than 3 yrs).
838      - report NETCDF & LAPACK settings (from genmake2) in output dir.
839      - report run-time in each individual summary (previously only for AD test);
840        for TLM test, add also TAF version.
841      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
842    
843    checkpoint63r (2012/08/15)
844    o tools/genmake2:
845      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
846    o pkg/ecco/ecco_cost_final.F :
847      - fix fc print statements (to stdout and costfunction0000) so
848        that the printed value is always after the global sum.
849    o pkg/seaice/seaice_dynsolver.F :
850      - fix ice strength assymptote at SEAICE_area_max<1
851        (no change for the standard case of SEAICE_area_max=1)
852    o some cleaning:
853      - pkg source files: ensure that all *.F files from each pkg included the
854        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
855        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
856        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
857        includes;
858      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
859      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
860        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
861        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
862      - update option-file CPP_OPTIONS.h of all AD experiments:
863        * no longer include PACKAGES_CONFIG.h ;
864        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
865        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
866          including ECCO_CPPOPTIONS.h).
867    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
868      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
869        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
870        not necessary accurate).
871      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
872        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
873        deliberately break compilation (a remainder that it needs to be customized)
874      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
875      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
876      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
877    o tools/genamke2:
878      - check for lapack.
879    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
880      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
881        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
882        from both packages.
883      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
884      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
885      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
886        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
887    o pkg/cost : add comments to explain special and/or untested setups.
888    o pkg/exf:
889      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
890        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
891    o verification/*/code_ad:
892      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
893      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
894      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
895        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
896    o pkg/seaice :
897      - added possibility to change ice strength/PRESS0 relationship to
898        HEFF, according to the following run time parameters
899        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
900        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
901        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
902    o pkg/ggl90 :
903      - added run time flag mxlSurfFlag to include the code that ensure
904        mixing between first and second level (previously included as a comment)
905    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
906      - add test of newly added dumpAdByRec=T option where
907        we write all records to one file per variable.
908    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
909      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
910        to check that this code is ok with taf and compiles in adjoint.
911    o pkg/autodiff :
912      - added run time param dumpAdByRec : ad dump format switch.
913        If true then write all records to one file per variable.
914        Else write one file per record (remains the default).
915      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
916    o pkg/seaice:
917     - Added SEAICEuseTILT run time switch : if set to
918       false then omit the tilt term in seaice dynamics.
919     - Fix free drift calculation.
920    o pkg/shelfice:
921      When initializing SHELFICEDragQuadratic, set default to be
922      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
923      but retain option to set it independently
924      (inconsistenty spotted by Veronique Dansereau)
925    o eesupp/inc:
926      - in EEPARAMS.h, add real-type constant for some frequently used simple number
927         (0,1,2,1/2), with name explicitly referring to RS/RL type.
928    o model/src:
929      - move balancing of relaxation terms to new S/R balance_relax.F.
930    o pkg/autodiff:
931      re-write active I/O high-level (control) S/R:
932      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
933      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
934      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
935        MDS_READ/WRITE_FIELD); change loops to multi-threads.
936      - update and merge active_file_control_slice.flow into active_file_control.flow
937      - update the calls in lower level S/R (active_file.F, active_file_g.F and
938        active_file_ad.F) keeping the argument list and function unchanged.
939      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
940        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
941      - new low-level active I/O routines, one for each type (RL/RS), for active var
942        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
943        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
944        right type.
945    o autodiff and RS=real*4:
946      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
947        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
948      - change argument type of 3-D mask argument to _RS to match type in the call
949        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
950    o pkg/thsice:
951      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
952      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
953        fresh-water flux: uniform correction or proportional to local precip.
954    o pkg/ctrl:
955      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
956      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
957                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
958      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
959    
960    checkpoint63q (2012/07/30)
961    o pkg/autodiff:
962      note about monitor and snap-shot of ad-variables:
963      a) need to apply ADEXCH before monitor or output of ad-vars to include
964       overlap contributions (was done for adjDump but missing for monitor).
965      b) since ADEXCH implies adding overlap values to interior array, machine
966       truncation error is expected when adding an ADEXCH call in the middle of
967       the time-stepping (although mathematically identical).
968      modifs:
969      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
970        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
971      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
972        apply ADEXCH before monitor or snap-shot of ad-variables:
973           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
974      - implement new method (copy+adexch) for snap-shot and monitor of main model
975        ad-vars (initially not used by default -> output unchanged).
976      - change default (set to 2) to use new method and update few output_adm.txt
977        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
978        and both tutorial_tracer_adjsens tests).
979      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
980        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
981    o pkg/ctrl:
982      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
983      generic control variables via
984      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
985      Only required customization should be S/R ctrl_map_ini_genarr.F
986      (routine in repository contains example)
987    o pkg/exf:
988      - fix and refine checking of surface-relaxation setting when using EXF
989    o verification (adjoint exp):
990      - reduce length of simulation by half for experiment global_ocean.cs32x15
991        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
992    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
993      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
994        of KE that can occur with aggressive optimization
995      + put quadratic bottom drag calculation in separated loops (only done if
996        using bottomDragQuadratic)
997    o model/src: CG2D_NSA
998      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
999         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
1000      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
1001         change cg2d residual target to be expressed in Wunits (=> do not normalise
1002         RHS ; this fix global_max Pb with TAF); update output.
1003    o verification/tutorial_tracer_adjsens:
1004       improve parameter consistency (and get rid of warnings):
1005       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
1006       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
1007       - use staggerTimeStep (for stability) in som81; use default rotation period.
1008    o pkg/exch2:
1009      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
1010        reset to 0 = 1 long line in X)
1011    o pkg/mdsio:
1012      - fix reading of dimensions from meta file for large-size domain
1013    o model/src:
1014      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
1015      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
1016        Cubed-Sphere Exch with CS-corners inside the domain;
1017        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
1018        globalArea and to set hasWetCSCorners.
1019      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
1020        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
1021      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
1022        useCDscheme and useCubedSphereExchange).
1023    o pkg/seaice/seaice_growth.F :
1024      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
1025        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
1026        when the previous code was not correct.
1027      - in all cases diagnoze the boundary condition mismatch to SIaaflux
1028      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
1029        that term to QNET (essentially to set the melt/freeze water to 0degC).
1030        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
1031    o verification/global_ocean.cs32x15/input.seaice :
1032      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
1033      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
1034      - update results (output.seaice.txt) accordingly.
1035    o verification/lab_sea/input/data.seaice :
1036      - remove SEAICEheatConsFix, which is now be tested
1037        in global_ocean.cs32x15. The presently coded fix
1038        is only consistent with real fresh water + nlfs.
1039      - update results (output.txt) accordingly.
1040    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
1041    o AD_CONFIG.h file:
1042      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
1043      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
1044        add it explicitly in each fortran src file where it is needed.
1045        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
1046        thus introducing potentially wrong dependency; therefore, better to include
1047        it only where it's really needed, and after any other included OPTIONS file
1048        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
1049        or ALLOW_TANGENTLINEAR_RUN).
1050    
1051    checkpoint63p (2012/07/06)
1052    o pkg/autodiff:
1053      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
1054      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
1055        which are now read from new parameter file "data.autodiff" (inAdExact
1056        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
1057      - add file "data.autodiff" in all verification/*/input_ad/ directories.
1058      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
1059        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
1060    o verification/tutorial_tracer_adjsens/
1061      - add extra sub-verification which uses "SOM" advection scheme
1062        (2nd Order-Moment Advection Scheme, Prather Limiter) with
1063          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
1064        and in data:
1065          multiDimAdvection=.TRUE.,
1066          tempAdvScheme=81,
1067          saltAdvScheme=81,
1068    o model/src:
1069      - introduce ALLOW_BALANCE_RELAX which allow the removal
1070       of the global mean of relaxation terms by setting
1071       balanceThetaClimRelax and balanceSaltClimRelax
1072      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
1073       This case is now treated appropriately in seaice_growth.F
1074    o pkg/seaice:
1075      - do balanceEmPmR and balanceQnet based on the net fluxes
1076        (SItflux) that enter the ocean+ice system rather than QNET
1077        and EMPMR. Works best in real fresh water.
1078      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
1079        out of the diagnotics bloc, and stored in global arrays.
1080    
1081    checkpoint63o (2012/06/29)
1082    o vertical mixing schemes:
1083      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
1084      - replace computation of density (in Function STATE1, opps_calc.F) by a call
1085        to S/R FIND_RHO_SCALAR
1086      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
1087        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
1088        affects output (vermix.ggl90) at truncation level.
1089    o testreport:
1090      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
1091        (nSx,nSy) for the number of threads (from eedata.mth)
1092    o model/src:
1093      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
1094        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
1095    o verification/tutorial_tracer_adjsens/
1096      - compile with ALLOW_CG2D_NSA
1097      - run with nonlinFreeSurf=3
1098      - update reference output_adm.txt
1099    o tools/genmake2:
1100      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
1101        refine usePROFILES switching off (only when NetCDF is not available).
1102    o verification (atmospheric set-up):
1103      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
1104    o pkg/profiles : refine profiles and files handling.
1105    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
1106    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
1107      - changes to use model/src/the_main_loop.F rather than the ecco version
1108        in ecco type adjoint runs.
1109    o model/src:
1110      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
1111      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
1112      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
1113    o model/src:
1114      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
1115        update output of test experiment bottom_ctrl_5x5.
1116    o pkg/generic_advdiff:
1117      - implement vertical bi-harmonic diffusion (for now, only for T & S and
1118        only explicitly).
1119    o verification/bottom_ctrl_5x5/
1120      update reference output (results changed quite some time ago,
1121      not sure when; but new reference results look ok in terms of grdchk)
1122    o verification/1D_ocean_ice_column/
1123      For verification purposes, the exact adjoint rather than an approx.
1124      should be used (e.g., to comare against F.D. or TLM).
1125      removed autodiff_inadmode*_ad.F routines in code_ad/
1126      Update results/ accordingly.
1127    o pkg/cal:
1128      - change cal_getdate.F so that output date is function of input time only
1129        (less ambiguous, not mixed up with input iteration number).
1130      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
1131    o pkg/diagnostics:
1132      - implement calendarDumps also for stats-diags
1133      - implement calendarDumps also for snap-shot output (negative freq)
1134      - for now, ignores calendarDumps if non-zero phase-lag.
1135    
1136    checkpoint63n (2012/06/04)
1137    o model/src:
1138      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
1139        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
1140      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
1141        similar to calc_r_star.F); update results of experiment internal_wave and
1142        tutorial_global_oce_in_p (affected @ truncation level).
1143    o pkg/shelfice:
1144      - add parameterisation of advective-diffusive flux into the ice shelf
1145        according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
1146      - simply eps3/3a computation
1147    o eesupp:
1148     - add new CPP option (DISCONNECTED_TILES) to disconnect tiles (no exchange
1149       between tiles, just fill-in edges assuming locally periodic subdomain) and
1150       add corresponding exchange subroutines (EXCH0);
1151     - new CG-solver version (_EX0) for disconnected-tiles special case.
1152    o model/src (CG-solvers):
1153     - modify Single-Reduction version (CG2D_SR) in case cg2dMaxIters is reached
1154       (similar final residual output and max-Iter number as with standard version);
1155     - allows to store and use lowest-residual solution (standard & _SR versions);
1156     - cleaning up (remove old, commented out code, LETS_MAKE_JAM ...).
1157     - by default, also compile CG2D_SR version (define ALLOW_SRCG in CPP_OPTIONS.h)
1158    o eesup/src:
1159     - global_vec_sum.F cleaning: add a BARRIER ; update comments ; remove ndef
1160       ALWAYS_USE_MPI (no longer needed after fixing usingMPI settings - March 2012)
1161    o pkg/salt_plume added to lab_sea/input_ad.noseaicedyn
1162    
1163    checkpoint63m (2012/04/27)
1164    o pkg/shelfice:
1165     - account for partical cells in surface level below ice-shelf for hydrostatic
1166       pressure calculion (set uniformFreeSurfLev to F); update isomip experiments.
1167    o ad test experiments:
1168     - update and rename to "ad_optfile.local" local AD-optfile specific to a
1169       particular adjoint verification experiment (in verification/*/code_ad/)
1170    o pkg/seaice & pkg/exf:
1171     - Part two of ECCO-CLIVAR code merges.
1172       Completes merge of seaice area relax. code.
1173       Requires unified CPP option EXF_ALLOW_SEAICE_RELAX
1174       to be set in EXF_OPTIONS.h since this pkg controls its I/O
1175       (and avoids second CPP option in SEAICE_OPTIONS.h)
1176     - change default value of costIceStart & costIceEnd to a valid date.
1177     - add snowPrecip to HSNOW in seaice_growth
1178    o pkg/ptracers:
1179     - move ptracers summary and setup check into separated S/R ; add a check for
1180       valid PTRACERS_Iter0 value (error+stop or just warning).
1181    o pkg/cal (+ pkg/ecco):
1182     - avoid calling a S/R with 2 times the same arg (FWD: unless both are only used
1183       as input; and for AD, unless both are not differentiable (e.g., k index)).
1184    o model/src:
1185     - define internal flag "uniformFreeSurfLev" (=T when free-surface level-index
1186       is everywhere k=1) to speed-up some calculations (by pass kSurf reference);
1187       temporary set to usingZCoords value (to be changed to F when using shelfice).
1188     - hydrostatic pressure: implement partial cell near the surface also for
1189       Z-coordinates (for the case where uniformFreeSurfLev=F); replace test on
1190       usingZCoords with test on uniformFreeSurfLev where needed (in NonHyd code).
1191    o pkg/ctrl/ctrl_init.F:
1192     - add a formal parameter to s/r ctrl_init_rec to print
1193       xx_$(ctrl_valiable)_file for easier debugging
1194     - move call of cal_* routines into the if-block where they are really
1195       needed so that xx_$(ctrl_variable)_period can be 0 or -12 without having
1196       to specify a startdate
1197    o pkg/seaice:
1198     - update comments in SEAICE_OPTIONS.h (+ similar update of lab_sea/code and
1199       global_ocean.cs32x15/code versions).
1200     - turn on seaice Multi-category (in data.seaice, SEAICE_multDim=7) for
1201       verification experiment global_ocean.cs32x15.seaice and update results.
1202    o pkg/exf:
1203     - new S/R EXF_GETFIELD_START to return starting-time of a forcing field
1204       (according to useExfYearlyFields).
1205    o pkg/cal:
1206     - move calendar setting & summary (previously in cal_readparams.F) into new
1207       S/R CAL_INIT_FIXED to be called later in the initialisation process, once
1208       length of the simulation is set (after SET_PARMS call); This is an attempt
1209       to fix Pb when, e.g.: pkg/longstep, modifies the length of the run.
1210     - For safety: keep a record of pkg/cal parameter settings status
1211               to allow to STOP if one pkg/cal S/R is called too early.
1212     - add a stop in all basic pkg/cal subroutines if called before setting is done.
1213     - modify cal_getdate.F: stop when nothing was returned;
1214       if called with myIter=-1, simply retrun modelBaseDate (1,2 = startDate_1,_2);
1215       this allows to remove "cal.h" from seaice_read_parms.F & init_mnc_vars.F.
1216    
1217    checkpoint63l (2012/04/04)
1218    o pkg/bbl:
1219      - fix call to FIND_RHO_2D in bbl_calc_rho.F (case multi-tiles per proc);
1220        update global_with_exf output.yearly.txt file.
1221    o pkg/cal:
1222      - start to clean-up cal_set.F ; fix for the case where baseTime is non-zero.
1223      - remove 2 unsused and very short (1 line only) functions ;
1224      - remove unsused subroutines from AD-Diff list.
1225    o model/src:
1226      - start to implement clean wait to stop in initialization S/R (config_check.F,
1227         packages_check.F, ini_parms.F and pkg/obcs/obcs_check.F + pkg/mypackage)
1228    o folowing PRINT_MESSAGE changes:
1229      - remove reminder multiple print to the same file (STDOUT) when multi-threads.
1230    o pkg/bbl:
1231      - modification so it can work with z*
1232      - replace deltaT with dTtracerLev(k) for asynchronous time stepping
1233      - global_with_exf/input.yearly verification; changes output.yearly.txt
1234    o eesupp/src:
1235      - PRINT_MESSAGE: use OpenMP critical instruction (similar to PRINT_ERROR);
1236        writing to unit 0 (if unit=errorMessageUnit) extended to the case myThid=1
1237      - CHECK_THREADS: specific code if using OpenMP threading: improve checking of
1238        # of threads across processors (e.g., different env OMP_NUM_THREADS setting)
1239      - improve special preliminary call to EESET_PARMS (if eedata is read 2 times).
1240      - when using MPI, always set usingMPI=T ; set default accordingly and stop
1241        if not consistent.
1242      - ALL_PROC_DIE: add a BARRIER after MPI_FINALIZE call ; skip this when thread
1243        argument is zero (in case called within single-thread section).
1244    o pkg/fizhi:
1245        clean-up turbulence cold-start switch: decided in fizhi_init_vars.F, stored
1246        in common bloc (fizhi_coms.h) and then passed as argument up to S/R TURBIO.
1247    o pkg/exch2:
1248      - add argument "updateCorners" to S/R exch2_get_uv_bounds (enable to
1249        activate EXCH_IGNORE_CORNERS in vector EXCH S/R).
1250      - switch 1rst EXCH call to IGNORE_CORNERS (instead of UPDATE_CORNERS)
1251        but keep the 2nd with UPDATE_CORNERS: this prevents overwriting good data
1252        with bad ones coming from a not-yet-updated halo.
1253        This should fix the problem when sNx <> sNy and GCD(sNx,sNy) < 2*Olx.
1254    o pkg/frazil:
1255        move FrzForcT diag from frazil_diagnostics_state.F to frazil_calc_rhs.F
1256        http://mitgcm.org/pipermail/mitgcm-devel/2012-March/005384.html
1257    o model/src/config_check.F: add a check for OLx>sNx/OLy>sNy
1258    o verification/lab_sea
1259      * #undef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING
1260      * #define ALLOW_SST_CONTROL & ALLOW_SST_CONTROL
1261      * nTimeSteps 3 -> 4
1262      * changed reference output accordingly
1263    o pkg/ctrl:
1264      * fix ctrl_get_gen for xx_sst, xx_sss
1265    o pkg/fizhi:
1266      - fix 2 calls to S/R GRD2MSC (argument igrd) in update_earth_exports.F
1267        update results of exp. fizhi-cs-32x32x40 (fail with only 6 digits for cg2d)
1268      - by default, use new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE);
1269        fix few out-of-bounds indices in referencing vars (initialise igrd to 1);
1270        clean-up fizhi_turb.F (remove unused & uninitialised qdiaglsm array).
1271    o pkg/gmredi:
1272      - add diagnostic of Redi (main diagnonal) vertical diffusive flux of Temp
1273    o pkg/fizhi:
1274      - fix few initialisation and multi-tile Pb: aqualev & gridalt now pass the
1275        (old)aces open64 tuv test.
1276    o pkg/icefront: fix bug and reorder loop in icefront_init_varia.F
1277    o pkg/mom_vecinv:
1278      - fix 1 loop range in mom_vecinv.F to be like all the other loops which
1279        set/update gu,gv/Diss (fix Pb of uninitialised fVerUkp in admom_vecinv
1280        with non-lin free-surf).
1281    o model/src: move k-loop outside of i/j-loops when (re-)computing R_low
1282      in ini/update_masks_etc.F in order to avoid -O3 optimization problems with
1283      some compilers (gfortran 4.6.0 on MacOS)
1284    o momentum:
1285      - separate fVer?(:,:,kUp) & fVer?(:,:,kDown) in argument list of MOM_FLUXFORM
1286        & MOM_VECINV subroutines (to help TAF). This fixes Pb of uninitialised
1287        fVer?(kUp) in admom_fluxform with non-lin free-surf or bottom control.
1288    
1289  checkpoint63k (2012/03/17)  checkpoint63k (2012/03/17)
1290  o model/src:  o model/src:
1291     - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum     - selectAddFluid (ALLOW_ADDFLUID): add missing term in horizontal momentum

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