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revision 1.1661 by mlosch, Fri May 18 12:44:21 2012 UTC revision 1.1845 by jmc, Sun Mar 31 16:30:33 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/shelfice:  checkpoint64f (2013/03/31)
8    - add parameterisation of advective-diffusive flux into the ice shelf  o verification/OpenAD:
9      - new (smaller, without OAD_DEBUG) output_oadm.txt generated using gfortran.
10    o verification/isomip, pkg/shelfice and OpenAD:
11      - add OpenAD setup to this exp and make shelfice package work with OpenAD
12    o verification/tutorial_global_oce_biogeo:
13      - update AD and TLM output after turning off ALLOW_FE (in DIC_OPTIONS.h)
14    o verification/offline_exf_seaice:
15      - replace adjoint experiment (now similar to fwd input.thermo/ setup).
16    o verification/tutorial_tracer_adjsens, pkg/ptracers and OpenAD:
17      - add OpenAD setup to this exp and make ptracers package work with OpenAD
18    o pkg/seaice/seaice_evp.F:
19       mask the asymmetric contribution of the ice-ocean stress (when
20       the turningAngle is non-zero) over open water to avoid stripes
21       in the EVP-solutions after many EVP-substeps. This does not change
22       the verification experiment (because turningAngle=0 in that experiment),
23       but will affect other EVP solutions with turningAngle.ne.0
24    o verification, AD & TLM output:
25      - new TAF version 2.3.10 (previously 2.3.8) add more parenthesis in multiple
26        additions and multiplications which affect results at machine truncation
27        level. Update few AD output (1D_ocean_ice_column, bottom_ctrl_5x5,
28        lab_sea.noseaicedyn & offline_exf_seaice) and TLM output
29        (1D_ocean_ice_column & tutorial_tracer_adjsens.som81) which had only 12
30        digits of matching.
31    o pkg/seaice:
32       modify lsr-algorithm so that it vectorizes AND converges by using a
33       "zebra" method: split vector loop into two with step size 2; this
34       solves a general convergence problem for the JFNK solver on a vector
35       computer. It has the potential to even improve convergence for
36       non-vector machines, but it does change the results so it is turned
37       off by default. To turn on define CPP-flags SEAICE_VECTORIZE_LSR and
38       SEAICE_VECTORIZE_LSR_ZEBRA in SEAICE_OPTIONS.h
39    
40    checkpoint64e (2013/03/05)
41    o pkg/ecco and several verification experiments:
42       Remove special versions of the_model_main.F, the_main_loop.F, forward_step.F
43       from ecco package, and revert to unified routine in model/src/
44       Adjust verification experiments accordingly, especially gloal_oce_llc90
45       Should conclude long-standing work by Gael to reconsile the_main_loop with
46       ECCO and will enable OpenAD's revolve loop in ECCO setup.
47    o pkg/generic_advdiff:
48      - implement compressible flow method for multi-dim advection (similar to
49        gad_som_advect.F); add new option "GAD_MULTIDIM_COMPRESSIBLE" (since
50        TAF generates many recomputations) to use it; no yet coded with implicit
51        vertical advection.
52      - change experiment advect_cs (new output) and advect_xy (same output)
53        to test compressible flow multi-dim advection.
54    o pkg/generic_advdiff:
55      - fix SOM advection for unusual cases (linear Free-Surf in r*, other
56        cases where linear Free-Surf is not @ k=1, e.g., useShelfIce)
57    o pkg/seaice:
58      - fix bug in the no-slip implementation in seaice_calc_strainrates.F, this
59        bug affects two verification experiments (lab_sea and lab_sea.hb87),
60        recover old (wrong) results by setting noSlipFac = 2. in
61        seaice_calc_strainrates.F;
62      - add another averaging method for etaZ (etaZmethod=3), a mix of 2 and 0
63      - add runtime parameter SEAICE_JFNKepsilon for that finite difference
64        gradient in the Jacobian times vector operation (s/r seaice_jacvec)
65      - fix line search in seaice_jfnk.F (s/r seaice_jfnk_update)
66    o pkg/seaice: reorganize seaice_lsr.F to be able to reuse more code:
67      - new subroutines seaice_lsr_tridiagu/v
68      - introduce loop bounds i/jmin/max to be able to use a restricted
69        additive Schwarz method, but not used for now.
70      - rename SEAICE_CALC_LSR_COEFFS into SEAICE_LSR_CALC_COEFFS
71      - use new subroutines seaice_lsr_tridiagu/v in s/r seaice_preconditioner
72    o OpenAD support
73       Reorganize S/R call for overall time-stepping loop to facilitate
74       OpenAD revolve loop replacement
75       (new S/R main_do_loop.F)
76    o model/src:
77      - add 3-D array 3rd dimension to argument list of S/R ADAMS_BASHFORTH2/3;
78      - pkg/cheapaml: remove local S/R ADAMS2d and use instead standard S/R
79        ADAMS_BASHFORTH2.
80    o pkg/cheapaml:
81      - add new parameter (default=F, same as before) to disable full domain
82        (including land) periodicity in X & Y dir.
83      - new S/R CHEAPAML_COPY_EDGES to copy relaxation field into edges of
84        prognostics field ; merge the 2 S/R cycle_2d_tracer and timestep_2d_tracer
85        into single S/R CHEAPAML_TIMESTEP.
86    
87    checkpoint64d (2013/02/17)
88    o pkg/monitor (angular momentum):
89      - do not add Eta contribution to the total AM if using rigid-lid;
90      - correct for Adams-Bashforth in zonal-wind part (instead of in AM_eta).
91      - horizontal discretisation: compute Zonal wind contribution separately for
92        each component (instead of from cell centered averaged) and use the 4
93        grid-cell corner averaged value of Omega*(R*cos_Phi)^2 in AM_eta part.
94      - Check that AM is conserved with linear dynamics (momAdvection=F and linear
95        FreeSurf) if using vectorInvariant momentum.
96    o model/src (horizontal grid):
97      - move initialisation of all horizontal grid arrays to null value
98        from specific horizontal grid S/R to main S/R INI_GRID;
99      - add 2 new arrays to project model C-grid velocity on to zonal direction
100        (similar to AngleCosC & -AngleSinC but at U and V point location) and
101        compute them in S/R CALC_GRID_ANGLES.
102    o pkg/seaice: replace a hard coded parameter by a runtime parameter
103        SEAICE_JFNK_tolIter
104    o pkg/seaice: introduce a restricted additive Schwarz (RAS) method in
105        preconditioner for JFNK (run LSR into the overlaps as far as possible,
106        i.e OLx/y-2, but overwrite the solution in the overlaps)
107      - extend loop range in seaice_calc_viscosity
108      - add new parameters SEAICE_OLx/y (default = OLx/y-2)
109      - add flexible loop ranges to seaice_preconditioner, seaice_calc_lsr_coeffs
110      - slightly modify loops in tridiagonal solver lsr-preconditioner
111      - by default remove the extra exchange in seaice_preconditioner with a
112        replacement of an undocumented CPP flag by SEAICE_PRECOND_EXTRA_EXCHANGE
113      - modify offline_exf_seaice so that old results without RAS are reproduced
114        for output.dyn_jfnk.txt
115      in seaice_fgmres.F (unrelated to RAS)
116      - add a cpp-flag option for a re-ordered mapping (potentially more
117        efficient), but because this changes the results, turn it off by
118        default
119      - replace the save statement by local common blocks
120    o utils/matlab:
121      - fix tile-offset in rdmnc.m when output was produced using EXCH2.
122      - update cs_grid/bk_line scripts to use load_grid.m (in utils/matlab)
123        instead of local script "load_cs.m".
124    o pkg/seaice:
125      - fix a serious bug in seaice_fgmres.F, s/r seaice_scalprod, connected
126        to the scalarProductMetric and the unrolling. By chance this does not
127        change the verification experiment, because of the particular domain
128        decomposition
129    o pkg/diagnostics:
130      - change default missing_value from UNSET_RL to -999.
131    o pkg/layers: improve vectorization of layers_fluxcalc.F
132      - step 1: split loops, make TatU/V 2D arrays. This alone reduces the cpu
133        time spent in this routine by more than a factor of 3 on an NEC-SX8
134      - step 2: replace search algorithm by a bisection algorithm found in
135        Press et al. Numerical Recipes in Fortran. This algorithm can be
136        vectorized and finds the correct bin in approx. log2(Nlayers) steps.
137        For now, use this algorithm only for TARGET_NEC_SX defined.
138      - moved the search algorithm into a separate subroutine, that is kept
139        within the same file for automatic inlining.
140      - modified catching potential errors
141    o pkg/ecco:
142      - add compile switches ALLOW_SHALLOW_ALTIMETRY and ALLOW_HIGHLAT_ALTIMETRY.
143    o model/src, pkg/autodiff, pkg/ctrl, pkg/grdchk :
144      - modifications for ALLOW_GENTIM2D_CONTROL
145      -- forward_step.F, the_main_loop.F : pass options and arrays for adjoint tapes.
146      -- load_fields_driver.F : add call to CTRL_MAP_GENTIM2D( myTime, myIter, myThid )
147      -- add xx_gentim2d0/1 in ctrl_ad_check_lev1_dir.h checkpoint_lev1_directives.h etc
148      -- use ctrl_swapffields.F (new) instead of exf_SwapFFields.F in ctrl_get_gen.F
149    o model/src:
150      - account for moist thermodynamics in (dry) potential temperature equation;
151        update results of experiments: aim.5l_cs (x2), fizhi-cs (std + aqualev)
152        and cpl_aim+ocn.
153      - also switch to standard compiler (gfortran, was using ifort previously)
154        for fizhi-cs experiments reference output.
155    o pkg/ctrl:
156      - 1st step toward generic time-varying control variable (2D) via CPP option
157        ALLOW_GENTIM2D_CONTROL
158      - note new namelist ctrl_nml_genarr in data.ctrl
159    o verification/global_ocean.cs32x15:
160      - switch off OLD_THSICE_CALL_SEQUENCE (both forward and AD code) to use new
161        thsice calling sequence and update "output.icedyn.txt" output file.
162    o pkg/ptracers:
163      - from Ryan A.: code to allow to restart a tracer at regular time interval
164        specifying a reset frequency and a reset-phase (for each tracers).
165    o pkg/thsice:
166      - implement new sequence of calls for thsice+seaice:
167          previously:   ice-Dyn,ice-Advect,ice-Thermo(thsice)
168          new sequence: ice-Thermo(thsice),ice-Dyn,ice-Advect
169      - allows (with temporary CPP option "#define OLD_THSICE_CALL_SEQUENCE"
170        in CPP_OPTIONS.h) to recover old sequence;
171      - update diagnostics for Intermediate State thsice diagnostics: now filled
172        just before advection (instead of just after advection in old sequence);
173      - update output of experiment offline_exf_seaice (standard test);
174      - in global_ocean.cs32x15 exp., postpone output.icedyn.txt update
175        by setting #define OLD_THSICE_CALL_SEQUENCE in CPP_OPTIONS.h
176    o pkg/aim_v23:
177      - use tiled array for aim_CO2 and surface wind speed for export to coupler;
178      - use standard pkg/mdsio routines to read & write CO2 pickup file;
179      - in-line S/R AIM_AIM2DYN_EXCHANGES in aim_do_physics.F;
180      - Implement new sequence of calls for seaice advection (with thsice and
181        seaice diffusion): do ice advection after ice-Thermodynamic (previously
182        was done before); change aim_do_physics.F (split the bi,bj loops block);
183      - use same CPP option (OLD_THSICE_CALL_SEQUENCE) to recover old sequence;
184    o pkg/thsice:
185      - add a missing EXCH of sIceLoad in thsice_main.F (ocean set-up) for the case
186        where just seaice diffusion is used without seaice-dynamics.
187    
188    checkpoint64c (2013/01/18)
189    o pkg/seaice:
190      - add a parameter JFNKres_tFac that can replace JFNKres_t
191        (= JFNKres_tFac*JFNKresidual before JFNK solver)
192      - add a line search option to the JFNK solver
193      - move update of u/vIce and computation of initial residual into a separate
194        routine (same file); makes the code a little easier to read (?)
195      - the line search requires computation of the residual and for some reason
196        I cannot do the update of u/vIce at the beginning of the Newton loop
197        without changing the results, so we move computation of the new residual
198        also to the end of the Newton loop, even without the line search
199    o pkg/mdsio:
200      - write missing value (corresponding to undefined array value) to meta files;
201        skip this if missing value is one (UNSET_RL would be a better value for the
202        case of undefined missing value but it's current the default missing-value);
203        Also update mdsio_read_meta.F (reading timeInterval & missing-value).
204    o pkg/exf & thsice:
205      - for diagnostics purpose, fill-up and update Qsw array (+ fill the
206        diagnostics) even when SHORTWAVE_HEATING is #undef;
207    o verification/cfc_example:
208      - turn on pkg/layers with pkg/diagnostics (to test pkg/layers and to
209        illustrate how to use it).
210    o verification/offline_exf_seaice:
211      in input: add SEAICErestoreUnderIce=.TRUE., and reduce size of forcing
212        files to only one time-record.
213      in input.thermo: narrow the 2 bands of low initial ice-concentration near
214        N & S edges; switch on SEAICErestoreUnderIce=T; use pkg/diagnostics for
215        snapshot output; same mcPheePiston value as in thsice with
216        surf-current=0.2m/s.
217      in input.thsice: similar set-up as in input.thermo (channel with same seaice
218        initial conditions).
219    o verification/cfc_example:
220      - update file "data" with more standard choice (default rotationPeriod,
221        exactConserv=T, reduce ivdc_kappa to 10, remove multiDimAdvection=F,
222        set deltaTFreeSurf to deltaTtracer) and update the output.
223    o pkg/layers:
224      - fix bolus part so that it compiles with #undef GM_BOLUS_ADVEC;
225      - ensure that "layers_bolus" is switched to False when useGMRedi=False.
226    o verification/offline_exf_seaice:
227      - set all {field}period to zero for constant-in-time forcing (not tested
228        anywhere else).
229    o verification/offline_exf_seaice:
230      - dyn_lsr  : use pkg/seaice S/R (instead of pkg/thsice) to advect sea-ice;
231      - dyn_jfnk : use pkg/thsice S/R (instead of pkg/seaice) to advect sea-ice.
232    o model/src:
233      - implement Finite-Volume method for (hydrostatic) presure gradient
234        from S.-J. Lin (QJRMS 1997), for atmosphere using sigma-coordinate.
235    o pkg/seaice: implement EVP* by Lemieux et al. (2012).
236      - In order to be compatible with the default EVP code, this requires changing
237        the EVP code around a little; and because any small change immediately
238        breaks the lab_sea.hb87 verification experiment, the reference output is
239        updated two times (each time the remaining aggrement was only 2 digits):
240        - after replacing 1/dt by 1*recip_dt with a precomputed recip_dt
241        - after replacing 1/(1+0.5*dt/tau) by a/(a+1), with a=2*tau/dt
242        The adjoint test lab_sea.evp also needed to be updated.
243      - Turn on EVP* by setting SEAICE_deltaTevp as before, and setting
244        SEAICEuseEVPstar=.true.; for EVP* SEAICE_deltaTevp does not need to be
245        a factor of SEAICE_deltaTdyn, and you can set the number of EVP steps
246        explicitly with SEAICEnEVPstarSteps (thereby overriding the default of
247        INT(SEAICE_deltaTdyn/SEAICE_deltaTevp)). Controlling EVP* is deliberately
248        kept obscure, because I need to test it a little more.
249    o pkg/cheapaml:
250      - fix few incorrect type (_RL/_RS) in subroutine calls.
251    o pkg/seaice:
252      - new S/R SEAICE_MAP_RS2VEC (similar to SEAICE_MAP2VEC) to map _RS arrays
253        to _RL vector; this fixes JFNK code when compiling with "-use_r4" option.
254    o model/src:
255      - add a warning if using select_rStar=2 with nonlinFreeSurf <> 4;
256        change (in input_ad*/data) select_rStar from 2 to 1 for AD verification
257        experiments global_ocean.cs32x15 & tutorial_tracer_adjsens (+ update output)
258    o pkg/cheapaml:
259      - replace "273.1 _d 0" by celsius2K in pkg/cheapaml/cheapaml.F and
260        update output of experiment cheapAML_box.
261      - store in CHEAPAML.h coeffs ssq[0:2] for saturation specific humidity,
262        and set them only in one place (cheapaml_readparms.F).
263      - replace "273.16 _d 0" by celsius2K & replace "3.14159 _d 0" by constant "PI"
264      - remove re-setting of main-model parameter "celsius2K" (in cheapaml_readparms)
265        and re-setting of cheapAML params "lath" & "p0" (in cheapaml_init_varia).
266    o model/src/the_main_loop.F:
267      - fix revision 129 : need both ALLOW_ECCO and ALLOW_ECCO_EVOLUTION.
268    o pkg/seaice:
269      - remove legacy branch code.
270      - retire SEAICE_GROWTH_LEGACY and SEAICE_CAP_HEFF accordingly.
271    o verification/*/code*/SEAICE_OPTIONS.h:
272      - remove documentation for retired CPP flags (SEAICE_GROWTH_LEGACY,
273        SEAICE_CAP_HEFF).
274    o pkg/cheapaml:
275      - use standard routine (S/R GET_PERIODIC_INTERVAL) to decide when it is time
276        to load new forcing fields.
277      - add missing "_d 0" where it's needed; + some editing (improve indentation).
278      - remove switch to "-r8" compiler option (no longer needed) in verification
279        cheapAML_box, keep same output (small trucation error differences).
280    o verification/offline_exf_seaice:
281      - add thermodynamics only test.
282    o verification/cheapAML_box:
283      - split the domain in 8 (2x4) tiles; add MPI and multi-threaded test;
284        keep same output (same 14 digits for cg2d).
285      - switch on "-r8" compiler option (some numerical values are missing
286        the "_d 0") and update output (only 6 digits for cg2d were preserved).
287    
288    checkpoint64b (2012/12/24)
289    o pkg/cheapaml:
290      - remove un-used variables (Qnet,EmPmR) from pickup files.
291      - store tendency of advected variables into cheapaml pickup file
292        and fix the AB-2 restart.
293    o verification/offline_exf_seaice and lab_sea adjoint:
294      - switch to new code (#undef SEAICE_GROWTH_LEGACY).
295      - switch to 4 time steps in offline, consistent with lab_sea.
296      - match parameters from SEAICE_GROWTH_LEGACY branch in data.seaice.
297      - update results after change of experiment seaice.
298    o pkg/seaice:
299      - remove option SEAICE_MULTICATEGORY; has been replaced with run-time
300        parameter SEAICE_multDim. Issue a warning if SEAICE_MULTICATEGORY is
301        still defined since SEAICE_multDim needs to be set to MULTDIM value (from
302        SEAICE_SIZE.h) to recover previous #define SEAICE_MULTICATEGORY default.
303    o model/src:
304      - add run-time parameter to select CG2D solver minimum-residual solution
305        (in case of a poor convergence).
306    o pkg/seaice/seaice_lsr.F
307      - move calculation of matrix coefficients into new
308        S/R SEAICE_CALC_LSR_COEFFS; for now this routine remains in the same
309        file; the main purpose of this change is to be able to reuse the code
310        in S/R SEAICE_PRECONDITIONER
311      - modify the computation of the residual so that the mass of sea-ice
312        is not used twice; this simplifies the calculations, but since
313        the residual is never used except when LSR_mixIniGuess.ge.4---and this is
314        not tested in testreport---this does not affect the testreport results.
315    o verification/seaice_obcs:
316      - disable SEAICE_GROWTH_LEGACY; reset input files to match those of
317        verification/lab_sea/input.salt_plume; changes results/output.txt*
318    o model/src:
319      - adapt quasi-hydrostatic formulation to work with p or p* coordinate.
320    o pkg/seaice:
321      - improve description of parameters in seaice_fgmres.F and start
322        cleaning up the code
323      - change name of SCALPROD to SEAICE_SCALPROD and modify meaning of
324        second argument
325      - add a metric based on grid cell area to SEAICE_SCALPROD; update
326        results of offline_exf_seaice.dyn_jfnk
327      - compute initial residual norm in seaice_jfnk based on SEAICE_SCALPROD
328    o pkg/aim_v23:
329      - fix an other bug in dissipation heating (grid-cell area was missing).
330    o model/src + pkg/seaice:
331      - add global (multi-tile) linear solver for pair of tri-diagonal system
332        along X and Y lines, respectively for U and V component.
333        Note: 1) MPI and cube-exchange not yet coded.
334            2) probably not accurate for poorly conditioned / large size problem.
335      - add option for SEAICE_LSR to use global (multi-tile) tri-diagonal solver;
336        default: not compiled and not used.
337    o pkg/seaice:
338      - first attempt at a multi-threaded fgmres solver for the JFNK solver:
339        introduce bi/bj loops and use global_sum_tile_rl instead of
340        mpi_allreduce in seaice_fgmres.F
341      - improve diagnostics output for fgmres solver (seaice_fgmres.F)
342      - replace a few unnecessary goto statements by if-blocks  (seaice_fgmres.F)
343      - add a verification experiment for JFNK in offline_exf_seaice
344    o verification:
345      - change (for now, only fwd test) offline_exf_seaice experiment:
346        use a re-entrant channel with idealized coastline (trapezoidal shape)
347        at southern boundary to explore seaice dynamics and thermodynamics
348        with simple forcing. Main set-up has dynamics+thermo and SST relaxation;
349        secondary test (input.thsice) use thermodynamics only with SST relaxation.
350      - add seaice-dynamics only secondary test using LSR and pkg/thsice advection.
351    o pkg/exf:
352      - disable "sstExtrapol" when Nr=1
353    o verification:
354      - add new experiment "cheapAML_box" (simple 1 layer set-up from Bruno Deremble)
355        to test pkg/cheapaml.
356    o pkg/aim_v23 & pkg/shap_filt:
357      - fix dissipation heating (erroneous gravity multiplication factor).
358    o pkg/seaice:
359      - remove unused field pressPre from jfnk solver
360      - rename two subroutines in seaice_preconditioner.F
361    o eesupp/src:
362       - S/R MDSFINDUNIT avoids reserved unit numbers (scrUnit1, eeDataUnit ...)
363    o pkg/seaice/seaice_preconditioner.F: fix preconditioner once again
364       - remove wrong parts of the rhs and the lhs (were in there
365         because I did not understand the concept of this preconditioner)
366       - add an exchange between u- and v-sweep. This increases communication
367         by a factor of two but improves the convergence of jfnk. Ideally,
368         one would like the u- and v-sweep to be independent. So far within
369         undocumented ifdefs
370       - reorganize the extra computations for printing the residuals
371    o tools/genmake2:
372      - comment out the "mpif.h" include in NetCDF test programm (for MPI built)
373        since it's not necessary (and was preventing to use MNC in some cases).
374    
375    checkpoint64a (2012/11/16)
376    o pkg/autodiff:
377      - improve pkg-internal logical parameter switch (inAd/inFwd mode) so that
378        autodiff_readparms.F no longer depends on calling order (within
379        packages_readparms.F) and no longer requires to include ${PKG}_PARMS.h):
380        rename param turnFreeDriftInAdMode to SEAICEuseFREEDRIFTswitchInAd
381        and change param SEAICEuseDYNAMICSinAdMode to SEAICEuseDYNAMICSswitchInAd.
382    o pkg/obcs:
383      - adding tidal velocity forcing capability to obcs
384        for usage example, see verification/seaice_obcs/input.tides
385    o pkg/seaice:
386      - turn the LSR-relaxation parameters WFAU/V into runtime parameters
387        SEAICE_LSRrelaxU/V
388      - introduce runtime parameter SEAICEetaZmethod (=0 by default)
389    o pkg/aim_v23:
390      - implement heating from friction (bottom friction and stratospheric drag).
391    o pkg/shap_filt:
392      - fix diagnostic "SHAP_dKE" (was 2 time smaller); implement heating from
393        dissipation but only for Shap_funct=2, active when addFrictionHeating=T.
394    o model/src:
395      - move AddMass common block from DYNVARS.h to FFIELDS.h; allow to read-in
396        time-constant addMass field from file (addMassFile);
397      - support for heating due to friction (and Kinetic Energy dissipation):
398        add option, run-time switch and 3-D field array + support code ; each pkg
399        or S/R can add heating contribution (if there is a sink of KE); the sum is
400        accounted for as a Temperature tendency term (EXTERNAL_FORCING_T).
401    o pkg/seaice:
402      - complete merge of ITD code into seaice_growth.F
403        from MITgcm_contrib/torge/itd/code/
404        no verification so far, but Torge Martin tested
405        "1-D test case and Beaufort set up;
406        deliver okay results after 1 model year."
407      - complete merge of SEAICE_SIZE.h into all relevant routines
408      - move computation of eta at Z-points into calc_viscosities
409        + introduce global field etaZ
410        + add different methods for computing etaZ, for now the old
411          method (simple averages of eta to Z-points) is hardwired
412        + replace etaMeanZ by etaZ in seaice_lsr, seaice_calc_residual,
413          seaice_preconditioner
414      - simplify computations for SEAICE_ZETA_SMOOTHREG
415      - seaice_preconditioner:
416        + replace one remaining press by pressLoc (mistake)
417        + adjust printing of residuals
418      - improve I/O of diagnostics of JFNK in seaice_jfnk.F:
419        + add (SEAICE.h) and rename some counters (initiliased in
420          seaice_init_fixed.F)
421        + add _BEGIN/END_MASTER (myThid)  around print statements
422        + print total number of iterations and failures over SEAICE_monFreq
423          interval to STDOUT
424      - move control over output-messages by fgmres to seaice_jfnk to save
425        some operations
426      - move resetting initial guess for fgmres outside of seaice_fgmres_driver
427        in order to make restarts with sol .ne. zero (fgmres with restarts)
428        (seaice_jfnk.F, seaice_fgmres.F)
429      - seaice_calc_l/rhs.F: replace maskW/S by maskInW/S; this fixes
430        a serious convergence problem when open boundaries are involved
431    o pkg/ggl90: fix computation of control volumes for the case of
432      ALLOW_GGL90_HORIZDIFF (probably not used very often): move control volumes
433      up half a grid cell from C-centered to W-centered (pointed out by C. Eden)
434    o pkg/seaice: simplify seaice_evp by avoiding use of extra fields u/vIceC
435    o pkg/autodiff
436      - Add inAdMode switch for SEAICEuseDYNAMICS:
437        SEAICEuseDYNAMICSinAdMode
438        (extend logic in ADAUTODIFF_INADMODE_SET)
439    o pkg/seaice
440      - Step 1 of merging ice-thickness distribution (ITD) code from
441        MITgcm_contrib/torge/itd/ (author: Torge Martin)
442        The code implements concept laid out in Thorndike et al. (1975);
443        code is enabled via CPP flag SEAICE_ITD
444        nITD (in SEAICE_SIZE.h) defines number of ice thickness categories;
445        code is not complete yet!!
446      - SEAICE_SIZE.h now included in almost all seaice routines
447    o verification (using seaice):
448      - switch back seaice-dynamics (+ lower SOLV_MAX_ITERS) in ADM exp.
449        global_ocean.cs32x15.seaice ; update results.
450      - compile B-grid dynamics in FW test exp 1D_ocean_ice_column ;
451      - compile C-grid dynamics with #define SEAICE_ALLOW_JFNK in FW test exp
452        offline_exf_seaice (previously compiling B-grid).
453    o pkg/exf:
454      - fix some STOP conditions in exf_check.F (from Aug 28, modifs did not allow
455        to specify neither just 1 comp of wind or wind-stress, nor no surface momentum
456        forcing): just replace CPP option ALLOW_ATM_WIND with run-time param useAtmWind.
457    o pkg/layers (adjust changes from Sept 19):
458      - do snap-shot output and fill diagnostics from inside iLa loop (layers_calc.F)
459        this allows to remove "layers_maxNum" dimension from all layers arrays.
460    o pkg/layers (adjust changes from Sept 19):
461      - remove ALLOW_LAYERS_OUTPUT ; fix snap-shot and time-ave output ;
462      - snap-shot extended to all type of layers (not just the 1rst type);
463      - remove layers variables when corresponding CPP option is undef.
464    o pkg/layers:
465      - rename pkg/layers variable and add new output (layer exist & un-weighted
466        velocity in layer)
467    o pkg/seaice:
468      - simplify (?) ocean-drag coefficent computations by using
469        the same routine in all three solvers (saves some code lines)
470      - remove global fields DRAGA and DRAGS from C-grid code and
471        declare them locally in lsr.F (the only place where they are
472        still used)
473      - update AD output of lab_sea.evp (very sensitive anyway).
474    o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics
475      (Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK
476      and SEAICEuseJFNK=.true. A few things to note:
477      - involves a FGMRES, that is parallel but very inefficient,
478        because of many scalar products (global sums) in the Gram-Schmidt
479        orthogonalization method. Needs to be replaced. Original code
480        from J.-F. Lemieux
481      - preconditioner for FGMRES is a stripped down version of LSOR
482      - SOLV_MAX_ITERS is now used for LSOR as a solver and as a
483        preconditioner. For the preconditioner, the default is set to 10.
484      - Jacobian times vector is computed with finite differences
485      - marginally related to JFNK-solver: add a smooth regularization for
486        zeta with tanh that will improve convergence (Lemieux and Tremblay,
487        2009) for any implicit solver (not implemented for EVP because EVP
488        does not need this regularization in the first place). Define
489        SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use.
490    o eesupp/src:
491      - check in genmake2 that intrinsic S/R flush is available.
492      - add S/R to flush IO unit (if intrinsic S/R flush is available)
493      - flush standard & error msg unit before MPI termination
494      - if debugMode, flush IO unit after printing msg
495    o pkg/ctrl:
496      - ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call
497        to ctrl_set_unpack_xyz.
498    
499    checkpoint64 (2012/10/09)
500    o pkg/shelfice
501      - in mom_fluxform.F, mom_vecinv.F:
502        CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid)
503        Bug fix KappaRU -> KappaRV
504        does not change verification/isomip but may change other setups
505        (presumably constant KappaRU=KappaRV)
506      - fix diagnostics SHIU/Vdrag (thanks to Tom Millgate)
507    o pkg/obcs:
508      - fixed some indexing bugs in obcs_seaice_sponge.F
509      - added obcs relaxation subroutines for HSALT and HSNOW
510      - changes verification/seaice_obcs/results/obcs_seaice_sponge.F
511    o pkg/seaice:
512      - add "multicategory" parameterization for snow in analogy to ice,
513        default is off for now.
514    o pkg/obcs:
515      - added obcs_seaice_sponge.F for obcs relaxation of seaice variables;
516        see verification/seaice_obcs/input.seaiceSponge for example application.
517      - remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB
518        index setting by master-thread. This fix multi-threads Pb in previous modifs.
519    o pkg/layers :
520      - add diagnostics to pkg/layers
521      - move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F
522        (from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly.
523    o pkg/generic_advdiff/gad_implicit_r.F :
524      - fix ADVr diagnostics in case of both implicit vertical advection and diffusion.
525    o pkg/seaice/seaice_growth.F:
526      - fix SItflux diagnostics in virtual salt flux + balanceEmpmr case.
527    o pkg/obcs:
528      - change default setting of OBCS_UVICE_OLD from defined to undef;
529      - use new parameter OB_indexNone for null index value (instead of hard-coded 0)
530        in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F;
531      - pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z;
532      - change OB null index value (OB_indexNone) to -99 ; this fix the problem
533        with Southern & Western OB at a tile edge (at least in a simple set-up).
534    o pkg/obcs:
535      - change settings of OB index in case OB coincides with tile edge (shared by
536        2 tiles), so that common OB location is registered by both tiles (instead of
537        only 1). However, for Southern and Western OB, index value = 0 is not
538        recognized as valid OB index (=default null value) and needs to be fixed.
539      - modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting)
540      - new parameter "OB_indexNone" for null index value (for now, still zero)
541        to replace hard-coded null index value of zero.
542    o pkg/exch2:
543      - improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON:
544        always check buffer-size (but outside the loop); move checking for valid
545        index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON,
546        print each tile and point connection only if |W2_printMsg|>= 2 and 3.
547    o pkg/ctrl (pack & unpack):
548      - in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable
549        (locally defined) for different variables (+ remove the variable-specific
550        file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL
551        (to be extended to other local file names in ctrl.h).
552    o pkg/flt:
553      - add a FLT_Iter0 option (similar to PTRACERS_Iter0).
554    o pkg/mdsio:
555      - fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing
556    o tools/genmake2:
557      - add similar dependences for target EXE_AD & EXE_FTL as we have for EXECUTABLE
558        (added by Alistair in version 1.51 for building without make depend);
559      - remove Header files list (H_SRC_FILES) from the dependence of targets
560         ad_input_code.f & ftl_input_code.f (not clear why it was added in the first
561        place in version 1.23): this save going through staf when unrelated header
562        file has been modified.
563       Note: for an intermediate target (e.g., ad_input_code.f or adtaf) without
564        "make depend" step, still need to do "make links" before "make adtaf".
565    o eesupp/src (+ few pkg src files) & genmake2:
566      - finish to remove ALWAYS_USE_MPI in source code that TAF does not see;
567      - no longer set ALWAYS_USE_MPI in Makefile (was done by genmake2).
568      - improve genmake2 checking for ALLOW_${PKG} in CPP_OPTIONS.h files (distinguish
569         upper/lower case ; account for space between "#" and undef/define)
570    o pkg/flt (with exch2):
571      - cleaning: fix so that it compiles; move remaining MPI calls out of flt_exch2.F;
572      - simplify threads synchronisation; fix (many issues) multi-threaded with MPI.
573    
574    checkpoint63s (2012/09/05)
575    o pkg/ecco:
576      - remove #ifdef ALLOW_SMOOTH_CORREL3D brackets.
577      - add more relevant #ifdef ALLOW_SMOOTH ones.
578      - sort out useAtmWind, useSMOOTH, ctrlSmoothCorrel2D.
579    o pkg/ctrl:
580      - CTRL_OPTIONS.h : document CPPs related to smoothing; ALLOW_SMOOTH_CORREL2D/3D,
581        ALLOW_CTRL_SMOOTH, ALLOW_SMOOTH_CTRL2D, ALLOW_SMOOTH_CTRL3D.
582      - ctrl.h : document run time params doInitXX, doMainPack, doMainUnpack, doPackDiag,
583        doSinglePrecTapelev (audodiff param!), ctrlSmoothCorrel2D (new) and
584        ctrlSmoothCorrel3D (new).
585        The added ctrlSmoothCorrel2D/3D replace the old ALLOW_SMOOTH_CORREL2D/3D CPP.
586      - ctrl_readparms.F : initialise ctrlSmoothCorrel2D/3D and read from namelist.
587      - ctrl_init.F ctrl_pack.F ctrl_unpack.F : switch off ustress/vstress
588        controls when useAtmWind, and vice versa.
589      - ctrl_map_ini_ecco.F : UVEL0, VVEL0, edtaux, edtauy cannot be smoothed as tracers.
590      - ctrl_get_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL2D with
591          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel2D, IF useSMOOTH.
592      - ctrl_map_ini_gen.F : replace #ifdef ALLOW_SMOOTH_CORREL3D with
593          #ifdef ALLOW_SMOOTH, IF ctrlSmoothCorrel3D, IF useSMOOTH.
594      - ctrl_set_pack_xy[z].F, ctrl_set_unpack_xy[z].F:
595        replace ALLOW_SMOOTH_CORREL2D/3D brackets with ctrlSmoothCorrel2D/3D.
596    o pkg/smooth:
597      - remove un-necessary includes.
598      - remove ALLOW_SMOOTH*D and ALLOW_SMOOTH_CORREL*D brakets.
599        Those CPP options were never defined, and not necessary.
600    o model/src:
601      - fix CPP brackets in ini_mixing.F (GM_background_K belongs to gmredi).
602      - standard treatment of useSMOOTH.
603    o pkg/autodiff:
604      - add LOGICAL useGGL90inAdMode, useGGL90inFwdMode, useSALT_PLUMEinAdMode,
605        useSALT_PLUMEInFwdMode allowing to switch off ggl90 and salt_plume adjoint.
606    o pkg/exch2:
607      - add "if usingMPI" where it was missing (in exch2_rx?_cube*.template)
608        + start to remove ALWAYS_USE_MPI in source code that TAF does not see.
609      - make new S/R W2_MAP_PROCS out of w2_eeboot.F to setup exch2 CommonFlag
610        and tiles to process mapping.
611      - re-arrange 3 header files (W2_EXCH2_PARAMS.h, _BUFFER.h & _TOPOLOGY.h)
612        moving /EXCH2_FILLVAL_RX/ & /W2_EXCH2_COMMFLAG/ to W2_EXCH2_TOPOLOGY.h;
613        rename "exch2_tProc" to "W2_tileProc" and move seting of e2FillValue_RX
614        from w2_eeboot.F to w2_readparms.F.
615    o eesupp/src:
616      - set exchNeedsMemsync & exchUsesBarrier according to "usingMPI" (instead of
617        ALWAYS_USE_MPI) + moved from ini_communication_patterns.F to eeset_parms.F;
618        also move setting of exchCollectStatistics from exch_init.F to eeset_parms.F
619      - in eedie.F and all_proc_die.F, always call MPI_FINALIZE when ALLOW_USE_MPI
620        is defined (remove condition on usingMPI) to match cases where MPI_INIT
621        has been called.
622      - fix bug I put in previous modif of exch_sm_3d_rx.template (not much used);
623      - change default (non-MPI) value of myPid (from 1 to 0) to match MPI settings
624        (so that on 1 proc, get same myPid independently of usingMPI)
625      - add a stop if multi-procs but usingMPI=F ; stop also if usingMPI=T and
626        useCubedSphereExchange with EXCH-1 (safer).
627      - add "if usingMPI" where it was missing (+ start to remove ALWAYS_USE_MPI).
628    o pkg/ggl90:
629      - fix bug in filling corner mask array "mskCor" (FILL_CS_CORNER_TR_RL call)
630        used in ALLOW_GGL90_SMOOTH code.
631    o pkg/flt:
632      - fix typo in FLT_WITHOUT_Y_PERIODICITY (the effect was to ignore stopping
633        floats at the Southern end of the domain).
634    o eesupp/inc:
635      - add a list of CPP-options which can be set by Makefile (DEF_IN_MAKEFILE.h);
636        but not used (and not to be used) anywhere, just for documentation.
637    o pkg/autodiff, exf, ptracers & seaice (AD & TL output):
638      - comment out the very nasty "writeBinaryPrec = writeStatePrec" line, since:
639        a) can damage previously written records in any other multi-record files.
640        b) if needed, can easily do it cleanly, by calling S/R WRITE_REC_3D_RL/S.
641    o tools/genmake2:
642      - define variable MAKE within Makefile and use it in place of 'make';
643      - update AD_CONFIG.h (if needed) before building any of the executable
644        (forward, adjoint or tangent-lin); this involves a 2nd invocation of make;
645        and add the usual #ifndef/#define AD_CONFIG_H in AD_CONFIG.h;
646      - always print usual warning comment 'this file is automatically generated'
647        from script convert_cpp_cmd2defines (+ remove this warning from genmake2).
648    o pkg/cheapaml:
649      - updated to correspond to the code used in accepted paper (Nico Wienders).
650    o pkg/exf:
651        added run time switch useAtmWind to replace ALLOW_ATM_WIND cpp switch.
652        ALLOW_ATM_WIND now just sets the useAtmWind default (see exf_readparms.F)
653        and force defines ALLOW_BULKFORMULAE (EXF_OPTIONS.h).
654    o pkg/exf, autodiff, ctrl, ecco and seaice:
655        remove ALLOW_ATM_WIND brackets, or replace them with useAtmWind ones.
656    o pkg/ctrl, ecco:
657        allow to compile both ALLOW_U/VSTRESS_CONTROL and ALLOW_U/VWIND_CONTROL.
658        Depending on useAtmWind, one is inactive, and the other is active (see
659        exf_getffields.F/exf_getsurfacefluxes.F).
660    o tools/genmake2:
661      - improve error msg when failing in 2nd test of check_for_broken_Ff
662      - fix option '-makefile' short-name (-mf according to genmake2 -help)
663      - source local config file "genmake_local" just after processing the genmake2
664        command arguments (previously done before processing arg).
665    o pkg/grdchk:
666      - add a call to TURNOFF_MODEL_IO for Tangent-Linear run (in this case, call
667        to this routine from cost_final has been dropped in g_cost_final)
668      - improve printed information (more explicit msg, no longer using "print *,"
669         fix fcpertminus printed value).
670    o model/src:
671      - move call to COST_INIT_VARIA out of packages_init_variables.F directly
672        into initialise_varia.F (just after calling PACKAGES_INIT_VARIABLES):
673        this prevents getting cost-funct reset in adinitialise_varia recomputations.
674    o pkg/dic:
675      - move initialisation of "freefe" array from from dic_biotic_forcing.F to
676        fe_chem.F: this prevents TAF from dropping this initialisation in TLM code.
677    o pkg/grdchk:
678      - grdchk_main.F : added CALL GLOBAL_SUM_INT( ierr , myThid )
679      - grdchk_getadxx.F etc. : omit I/O if ierr.EQ.0
680    o pkg/autodiff/ctrl/grdchk :
681      - attempt to sort out what works and what does not,
682        with regard to I/O, and to warn/stop accordingly.
683    o pkg/grdchk:
684      - attempt to fix grdchk in the case of useSingleCpuIO.
685      - "if ( myProcId .EQ. grdchkwhichproc .AND. ierr .EQ. 0 )"
686       statements were moved from grdchk_main.F and into
687       grdchk_getadxx.F grdchk_getxx.F grdchk_setxx.F.
688      - a global sum is applied to record numbers icvrec/layer
689       out of grdchk_loc so that they be passed to I/O routines.
690    o pkg/smooth:
691      - fix recomputation that appeared with nlfs : use smooth_recip_hFacC,
692        smooth_hFacW, smooth_hFacS (copied at init_fixed) in 3d case.
693    o verification/testreport:
694      - add option '-tlm' for Tangent-Linear test (-adm,-oad,-tlm are all exclusive);
695      - can also use compressed (gzip) reference output file;
696      - change format (in pkg/grdchk) of TLM output (+ add forward gradient)
697        to be easier to collect by testreport.
698      - update existing TLM output (half out-of-date by more than 3 yrs).
699      - report NETCDF & LAPACK settings (from genmake2) in output dir.
700      - report run-time in each individual summary (previously only for AD test);
701        for TLM test, add also TAF version.
702      - add daily TLM test on (old) aces cluster + weekly test on baudelaire.
703    
704    checkpoint63r (2012/08/15)
705    o tools/genmake2:
706      - fix Makefile for target ftlall (+ update files to clean after make ftlall)
707    o pkg/ecco/ecco_cost_final.F :
708      - fix fc print statements (to stdout and costfunction0000) so
709        that the printed value is always after the global sum.
710    o pkg/seaice/seaice_dynsolver.F :
711      - fix ice strength assymptote at SEAICE_area_max<1
712        (no change for the standard case of SEAICE_area_max=1)
713    o some cleaning:
714      - pkg source files: ensure that all *.F files from each pkg included the
715        corresponding ${PKG}_OPTIONS.h file (except stand-alone src file which
716        only includes CPP_EEOPTIONS.h); fix S/R CTRL_SMOOTH ; update AD experiment
717        code_ad/*.F src files; add new option-file in pkg/admtlm + corresponding
718        includes;
719      - model/src: add PACKAGES_CONFIG.h wherever ALLOW_AUTODIFF[_TAMC] is used.
720      - ALLOW_DIFFKR_CONTROL: add a stop in S/R CTRL_CHECK in case ALLOW_3D_DIFFKR
721        is undef; also define /DYNVARS_DIFFKR/ common block in DYNVARS.h when
722        ALLOW_DIFFKR_CONTROL is defined, to allow to compile and reach this stop.
723      - update option-file CPP_OPTIONS.h of all AD experiments:
724        * no longer include PACKAGES_CONFIG.h ;
725        * includes ECCO_CPPOPTIONS.h if PACKAGES_CONFIG.h has been included ;
726        * def/undef ALLOW_3D_DIFFKR independently of ALLOW_DIFFKR_CONTROL (before
727          including ECCO_CPPOPTIONS.h).
728    o pkg/cost, pkg/ctrl, pkg/ecco option-file:
729      - clean-up and split content of old pkg/ecco/ECCO_CPPOPTIONS.h file into
730        separated pkg option-file (done according to old doc from ECCO_CPPOPTIONS.h,
731        not necessary accurate).
732      - add a template for option-file ECCO_CPPOPTIONS.h, mostly empty, in
733        pkg/autodiff, i.e., the 1rst pkg to compile for adjoint built, with lines to
734        deliberately break compilation (a remainder that it needs to be customized)
735      - in pkg/ecco, includes ECCO_OPTIONS.h instead of COST_OPTIONS.h
736      - rename COST_CPPOPTIONS.h to COST_OPTIONS.h
737      - rename CTRL_CPPOPTIONS.h to CTRL_OPTIONS.h
738    o tools/genamke2:
739      - check for lapack.
740    o pkg/cost and pkg/ecco : attempt to sort out some of the limiting intricacies.
741      - pkg/cost.cost_final.F : allow for use of pkg/ecco and pkg/cost cost functions
742        jointly. The exclusive ifdefs were removed, to add costs terms (when defined)
743        from both packages.
744      - the fc global sum in pkg/ecco/ecco_cost_final.F was removed accordingly.
745      - for objf_atl we use either the pkg/ecco or the pkg/cost term depending on CPPs.
746      - pkg/ecco and model/src : add CPP brackets around pkg/cost and pkg/ctrl includes
747        of "CTRL_SIZE.h" "ctrl.h" "ctrl_dummy.h" "optim.h" / "cost.h" accordingly.
748    o pkg/cost : add comments to explain special and/or untested setups.
749    o pkg/exf:
750      - use EXF_OPTIONS.h to set pkg/exf options except if done in ECCO_CPPOPTIONS.h
751        (previously, ALLOW_AUTODIFF_TAMC was controling this switch).
752    o verification/*/code_ad:
753      mimimal cleaning of AD experiments ECCO_CPPOPTIONS.h option-file:
754      - reccord when this file is included (define ECCO_CPPOPTIONS_H)
755      - remove the most obvious obsolete features (e.g., #define ALLOW_COST not
756        allowed since Oct 2003 in any option-file except in PACKAGES_CONFIG.h)
757    o pkg/seaice :
758      - added possibility to change ice strength/PRESS0 relationship to
759        HEFF, according to the following run time parameters
760        SEAICEpresPow0 :: HEFF exponent for ice strength below SEAICEpresH0 (integer, >0)
761        SEAICEpresPow1 :: HEFF exponent for ice strength above SEAICEpresH0 (integer, >0)
762        SEAICEpresH0   :: HEFF threshold for ice strength            (m)
763    o pkg/ggl90 :
764      - added run time flag mxlSurfFlag to include the code that ensure
765        mixing between first and second level (previously included as a comment)
766    o verification/1D_ocean_ice_column/input_ad/data.autodiff :
767      - add test of newly added dumpAdByRec=T option where
768        we write all records to one file per variable.
769    o verification/global_ocean.cs32x15/code_ad/CPP_OPTIONS.h :
770      - switch to #define ALLOW_BALANCE_RELAX and ALLOW_BALANCE_FLUXES
771        to check that this code is ok with taf and compiles in adjoint.
772    o pkg/autodiff :
773      - added run time param dumpAdByRec : ad dump format switch.
774        If true then write all records to one file per variable.
775        Else write one file per record (remains the default).
776      - revise seaice_ad_dump.F and exf_adjoint_snapshots_ad.F accordingly.
777    o pkg/seaice:
778     - Added SEAICEuseTILT run time switch : if set to
779       false then omit the tilt term in seaice dynamics.
780     - Fix free drift calculation.
781    o pkg/shelfice:
782      When initializing SHELFICEDragQuadratic, set default to be
783      consistent with shiCdrag in case SHELFICEuseGammaFrict is used,
784      but retain option to set it independently
785      (inconsistenty spotted by Veronique Dansereau)
786    o eesupp/inc:
787      - in EEPARAMS.h, add real-type constant for some frequently used simple number
788         (0,1,2,1/2), with name explicitly referring to RS/RL type.
789    o model/src:
790      - move balancing of relaxation terms to new S/R balance_relax.F.
791    o pkg/autodiff:
792      re-write active I/O high-level (control) S/R:
793      - rename  S/R ACTIVE_READ/WRITE_RL to ACTIVE_READ/WRITE_3D_RL
794      - add 1 more argument (useCurrentDir) to replace the "_LOC" 2nd set of S/R.
795      - use standard pkg/mdsio I/O routines (MDS_READ/WRITE_SEC_XZ/YZ  and
796        MDS_READ/WRITE_FIELD); change loops to multi-threads.
797      - update and merge active_file_control_slice.flow into active_file_control.flow
798      - update the calls in lower level S/R (active_file.F, active_file_g.F and
799        active_file_ad.F) keeping the argument list and function unchanged.
800      - also update lower-level "_LOC" version (call same S/R with "useCurrentDir
801        =.TRUE.") and remove high-level (control) _loc version (not called anymore).
802      - new low-level active I/O routines, one for each type (RL/RS), for active var
803        of various (XY,XZ,YZ) shape and level number (arguments: arrShape, myNr);
804        fix ctrl_init_wet.F & ecco_cost_weights.F by calling the new S/R with the
805        right type.
806    o autodiff and RS=real*4:
807      - call the right type (_RS instead of _RL) of S/R in few output S/R (pkg/exf
808        ad-monitor and snapshots); disable arrType='RS' in mdsio_gl*.F ;
809      - change argument type of 3-D mask argument to _RS to match type in the call
810        (in seaice_cost*.F, ctrl_*_gen.F and *ctrl_bound.F); to be continued.
811    o pkg/thsice:
812      - re-anable balanceEmPmR when useSEAICE=T with useThSIce=T.
813      - option to correct ocean fresh-water flux for imbalance of Atmos+Land
814        fresh-water flux: uniform correction or proportional to local precip.
815    o pkg/ctrl:
816      - new header file CTRL_SIZE.h for parameters maxCtrlArr2D, maxCtrlArr3D
817      - redefine CPP option ALLOW_BOTTOMDRAG_CONTROL to
818                            ALLOW_BOTTOMDRAG_CONTROL_NONGENERIC
819      - verification/hs94.1x64x5/ tests ALLOW_GENARR{2D,3D}_CONTROL
820    
821    checkpoint63q (2012/07/30)
822    o pkg/autodiff:
823      note about monitor and snap-shot of ad-variables:
824      a) need to apply ADEXCH before monitor or output of ad-vars to include
825       overlap contributions (was done for adjDump but missing for monitor).
826      b) since ADEXCH implies adding overlap values to interior array, machine
827       truncation error is expected when adding an ADEXCH call in the middle of
828       the time-stepping (although mathematically identical).
829      modifs:
830      - fix some incorrect type (RL/RS, UV/scalar) in ADEXCH calls and ad-vars
831        declaration (adEddyPsiX,adEddyPsiY in adcommon.h).
832      - add new run-time params (dumpAdVarExch & mon_AdVarExch) to select how  to
833        apply ADEXCH before monitor or snap-shot of ad-variables:
834           =0 : no ADEXCH ; =1 : do ADEXCH ; =2 : apply ADEXCH on a local copy.
835      - implement new method (copy+adexch) for snap-shot and monitor of main model
836        ad-vars (initially not used by default -> output unchanged).
837      - change default (set to 2) to use new method and update few output_adm.txt
838        with accurate ad-monitor (global_ocean.90x40x15, tutorial_global_oce_biogeo
839        and both tutorial_tracer_adjsens tests).
840      - switch 2 global_ocean.cs32x15 AD-tests to AB-2 (seaice_dynmix & thsice)
841        and turn off momDissip_In_AB in the 2 other (needed for stable AB-3).
842    o pkg/ctrl:
843      enable the use of a variable number (maxCtrlArr2D, maxCtrlArr3D) of
844      generic control variables via
845      #define ALLOW_GENARR2D_CONTROL and/or #define ALLOW_GENARR3D_CONTROL
846      Only required customization should be S/R ctrl_map_ini_genarr.F
847      (routine in repository contains example)
848    o pkg/exf:
849      - fix and refine checking of surface-relaxation setting when using EXF
850    o verification (adjoint exp):
851      - reduce length of simulation by half for experiment global_ocean.cs32x15
852        (std, seaice & seaice_dynmix) and exp tutorial_dic_adjoffline; update output.
853    o pkg/mom_common (mom_u/v_bottomdrag), pkg/shelfice (shelfice_u/v_drag)
854      - replace if statements KE.ne.0 with KE.gt.0 to avoid sqrt of negative numbers
855        of KE that can occur with aggressive optimization
856      + put quadratic bottom drag calculation in separated loops (only done if
857        using bottomDragQuadratic)
858    o model/src: CG2D_NSA
859      - clean-up:  stop if cg2dNormaliseRHS=T and AUTODIFF
860         and replace GLOBAL_SUM calls with GLOBAL_SUM_TILE.
861      - in test-exp that uses CG2D_NSA (bottom_ctrl & tutorial_tracer_adjsens),
862         change cg2d residual target to be expressed in Wunits (=> do not normalise
863         RHS ; this fix global_max Pb with TAF); update output.
864    o verification/tutorial_tracer_adjsens:
865       improve parameter consistency (and get rid of warnings):
866       - use deltaTFreeSurf=deltaTtracer (better with NonLin FreeSurf);
867       - switch Temp Adv Scheme from 81 to 80 (no limiter since theta < 0 is physical)
868       - use staggerTimeStep (for stability) in som81; use default rotation period.
869    o pkg/exch2:
870      - with empty facet: fix compact-format (W2_mapIO=1) definition (was previously
871        reset to 0 = 1 long line in X)
872    o pkg/mdsio:
873      - fix reading of dimensions from meta file for large-size domain
874    o model/src:
875      - fix saltIsActiveTr setting for IdealGas eosType (eosType is 6 character long);
876      - to refine CS-grid check, add logical flag "hasWetCSCorners": true if using
877        Cubed-Sphere Exch with CS-corners inside the domain;
878        make new S/R INI_GLOBAL_DOMAIN from code in ini_linear_phisurf.F to calculate
879        globalArea and to set hasWetCSCorners.
880      - add warning if usingCurvilinearGrid and momAdvection in flux-form (missing
881        metric terms); stop if hasWetCSCorners=T and momAdvection in flux-form.
882      - re-activate the stop if useCDscheme and hasWetCSCorners=T (previously if
883        useCDscheme and useCubedSphereExchange).
884    o pkg/seaice/seaice_growth.F :
885      - compute the SEAICE_DISABLE_HEATCONSFIX term accordingly
886        for the (.NOT.useRealFreshWaterFlux).OR.(nonlinFreeSurf.EQ.0)
887        when the previous code was not correct.
888      - in all cases diagnoze the boundary condition mismatch to SIaaflux
889      - in the case of useRealFreshWaterFlux.AND.(nonlinFreeSurf.GT.0) add
890        that term to QNET (essentially to set the melt/freeze water to 0degC).
891        when SEAICEheatConsFix is true, so that the ocean+ice budget heat is closed.
892    o verification/global_ocean.cs32x15/input.seaice :
893      - add SEAICEheatConsFix in data.seaice, ensuring closed ocean+ice heat budget.
894      - add diagnostics (commented out) for budget test using my matlab codes (gcmfaces).
895      - update results (output.seaice.txt) accordingly.
896    o verification/lab_sea/input/data.seaice :
897      - remove SEAICEheatConsFix, which is now be tested
898        in global_ocean.cs32x15. The presently coded fix
899        is only consistent with real fresh water + nlfs.
900      - update results (output.txt) accordingly.
901    o pkg/salt_plume: added diagnotic for salt tendency (oceSPtnd).
902    o AD_CONFIG.h file:
903      - in genmake2: remove "#undef ALLOW_ECCO_OPTIMIZATION" from AD_CONFIG.h;
904      - remove #include "AD_CONFIG.h" from all included OPTIONS files and
905        add it explicitly in each fortran src file where it is needed.
906        motivation: header file AD_CONFIG.h is generated/modified after "make depend"
907        thus introducing potentially wrong dependency; therefore, better to include
908        it only where it's really needed, and after any other included OPTIONS file
909        (less tempting to bring conditional includes according to ALLOW_ADJOINT_RUN
910        or ALLOW_TANGENTLINEAR_RUN).
911    
912    checkpoint63p (2012/07/06)
913    o pkg/autodiff:
914      - rename S/R INI_AUTODIFF to AUTODIFF_INIT_VARIA ;
915      - create new header file "AUTODIFF_PARAMS.h" for pkg/autodiff parameters
916        which are now read from new parameter file "data.autodiff" (inAdExact
917        previously in "data", use{KPP/GMRedi/SEAICE}inAdMode previously in data.pkg)
918      - add file "data.autodiff" in all verification/*/input_ad/ directories.
919      - add run-time parameter to turn On/Off SEAICEuseFREEDRIFT in adjoint/forward
920        mode (used in global_ocean.cs32x15.seaice_dynmix test exp.)
921    o verification/tutorial_tracer_adjsens/
922      - add extra sub-verification which uses "SOM" advection scheme
923        (2nd Order-Moment Advection Scheme, Prather Limiter) with
924          #define GAD_ALLOW_TS_SOM_ADV in GAD_OPTIONS.h
925        and in data:
926          multiDimAdvection=.TRUE.,
927          tempAdvScheme=81,
928          saltAdvScheme=81,
929    o model/src:
930      - introduce ALLOW_BALANCE_RELAX which allow the removal
931       of the global mean of relaxation terms by setting
932       balanceThetaClimRelax and balanceSaltClimRelax
933      - disable balanceEmPmR and balanceQnet in the case when useSeaice.
934       This case is now treated appropriately in seaice_growth.F
935    o pkg/seaice:
936      - do balanceEmPmR and balanceQnet based on the net fluxes
937        (SItflux) that enter the ocean+ice system rather than QNET
938        and EMPMR. Works best in real fresh water.
939      - SIatmFW, SIatmQnet, and SItflux computations had to be moved
940        out of the diagnotics bloc, and stored in global arrays.
941    
942    checkpoint63o (2012/06/29)
943    o vertical mixing schemes:
944      - remove unused S/R CALC_BUOYANCY (left from branch-atmos merging)
945      - replace computation of density (in Function STATE1, opps_calc.F) by a call
946        to S/R FIND_RHO_SCALAR
947      - pass sigmaR to S/R PP81_CALC, MY82_CALC (but not yet used) and to GGL90_CALC
948        and use it for N^2 calculation in ggl90_calc.F (save 2 density computations);
949        affects output (vermix.ggl90) at truncation level.
950    o testreport:
951      - change adjustment of SIZE.h for mpi+mth testing: preserve enough tiles
952        (nSx,nSy) for the number of threads (from eedata.mth)
953    o model/src:
954      - remove 2nd set of calls at the top of initialise_varia.F (Adjoint part)
955        related to Non_Lin Free-Surf or Bottom-Control (but not longer necessary).
956    o verification/tutorial_tracer_adjsens/
957      - compile with ALLOW_CG2D_NSA
958      - run with nonlinFreeSurf=3
959      - update reference output_adm.txt
960    o tools/genmake2:
961      - add "-DHAVE_NETCDF" to the DEFINES list when NetCDF is available ;
962        refine usePROFILES switching off (only when NetCDF is not available).
963    o verification (atmospheric set-up):
964      - change eosType='IDEALGAS' to eosType='IDEALG' to match variable declaration
965    o pkg/profiles : refine profiles and files handling.
966    o model/src and pkg/ecco : introduce run-time switch usePROFILES.
967    o model/src/the_main_loop.F, forward_step.F and pkg/exf/EXF_OPTIONS.h :
968      - changes to use model/src/the_main_loop.F rather than the ecco version
969        in ecco type adjoint runs.
970    o model/src:
971      - move computation of recip of grid distance & area from INI_MASKS_ETC to INI_GRID
972      - move setting of h0Fac[C,W,S] from INI_LINEAR_PHISURF to INI_MASKS_ETC
973      - update_masks_etc.F: rename SMOOTH*_R4,R8 function to the corresponding type (RS,RL)
974    o model/src:
975      - fix S/R UPDATE_CG2D for ALLOW_DEPTH_CONTROL case (was empty before);
976        update output of test experiment bottom_ctrl_5x5.
977    o pkg/generic_advdiff:
978      - implement vertical bi-harmonic diffusion (for now, only for T & S and
979        only explicitly).
980    o verification/bottom_ctrl_5x5/
981      update reference output (results changed quite some time ago,
982      not sure when; but new reference results look ok in terms of grdchk)
983    o verification/1D_ocean_ice_column/
984      For verification purposes, the exact adjoint rather than an approx.
985      should be used (e.g., to comare against F.D. or TLM).
986      removed autodiff_inadmode*_ad.F routines in code_ad/
987      Update results/ accordingly.
988    o pkg/cal:
989      - change cal_getdate.F so that output date is function of input time only
990        (less ambiguous, not mixed up with input iteration number).
991      - fix calendarDumps for non-zero phase-lag (S/R CAL_TIME2DUMP).
992    o pkg/diagnostics:
993      - implement calendarDumps also for stats-diags
994      - implement calendarDumps also for snap-shot output (negative freq)
995      - for now, ignores calendarDumps if non-zero phase-lag.
996    
997    checkpoint63n (2012/06/04)
998    o model/src:
999      - recompute rSurfW & S to ensure consistent column thickness (needed for rStar)
1000        between Sum_k(hFac*drF) and rSurf-rLow, for now only when using pkg/shelfice;
1001      - use h0FacC, W & S to compute hFac_surfC, W & S in calc_surf_dr.F (more
1002        similar to calc_r_star.F); update results of experiment internal_wave and
1003        tutorial_global_oce_in_p (affected @ truncation level).
1004    o pkg/shelfice:
1005      - add parameterisation of advective-diffusive flux into the ice shelf
1006      according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd      according to Holland and Jenkins (1999), eq.22-33, as suggested by Jan De Ryd
1007    - simply eps3/3a computation    - simply eps3/3a computation
1008  o eesupp:  o eesupp:

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