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revision 1.1335 by jmc, Tue Nov 16 17:53:33 2010 UTC revision 1.1559 by mlosch, Thu Dec 22 12:36:08 2011 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: sort out emissivity and long wave radiation step 2:
8      - add emissivity for snow and ice as new run-time parameters
9        (unfortunately) that default to the corresponding exf values; this
10        changes results in most verification experiments so that for backward
11        compatibility these parameter have to be set explicitly to inconsistent
12        values (ugly);
13      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
14        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
15        until we agree how to handle this bug properly
16    o pkg/exf (interpolation):
17      - add a set of run-time param ({inputfield}_interpMethod), one for
18        each interpolated input field, to select the interpolation method
19        with a value of zero switching off the interpolation;
20      - print interpolation parameters to standard output;
21      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
22        (to use instead runoff_interpMethod=0 in data.exf).
23      - simplify default setting of interpolation parameters (for all fields,
24        set position to match model grid cell-center position, leading to trivial
25        interpolation in case of regular Lat-Lon grid) and fix for the case of
26        non-uniform delY.
27    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
28       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
29       this factor is absolutely required, because the lw exitance (= out-going
30       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
31       where the reflectivity rho = 1-emissivity for conservation reasons. Once
32       this is established, we can remove the CPP-Flag (if we want to).
33    o pkg/seaice:
34      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
35        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
36      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
37        what the name implies (and not emissivity*BoltzmannConstant), this means
38        the old default value of 5.5e-8 now means
39        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
40        S/R exf_readparms
41      - FV-discretization of the B-grid LSOR solver, turn on with
42        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
43        of the calling routine dynsolver, so that B and C-grid code look a
44        little more alike.
45      - fix index bugs in ostres.F (B-grid code)
46    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
47    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
48      default for SEAICE_emissivity, if useEXF; requires setting a wrong
49      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
50      backward compatiblity
51    o model/src: use sigmaR in calc_ivdc
52    
53    checkpoint63g (2011/12/16)
54    o pkg/seaice/seaice_growth.F:
55      fix heat conservation of the coupled ocean-seaice system.
56      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
57      solid vs liquid water treatment is resolved via QNET.
58    o pkg/seaice/seaice_growth.F:
59      add missing term for sublimation in saltFlux, which was breaking conservation.
60    o pkg/seaice/seaice_model.F:
61      Remove this patholigical case treatment in evolution branch,
62      where it is un-necessary and breaks conservation.
63      Update global_ocean.cs32x15/results accordingly for
64      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
65    o model/src:
66      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
67      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
68    o pkg/obcs:
69      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
70      tendency for temperature and salinity that is then applied to update
71      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
72      horizontal advection and diffusion contributions on the boundary (in
73      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
74      removing the mask in S/R timestep_tracer. The advantage of this approach is
75      that the updated tracer values include contributions from the surface
76      forcing and vertical diffusion.
77      This modification changes exp4.stevens because of vertical diffusion.
78    o model/src:
79      change non-curvilinear grid setting to also work with exch2 + blank tiles:
80      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
81        face dimensions.
82      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
83        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
84        and INI_SPHERICAL_POLAR_GRID.
85      change test-experiment global_ocean.90x40x15:
86      - split the domain in many more tiles (9x4 tiles of 10x10 each);
87      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
88      - update results of both test (std & dwnslp).
89    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
90       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
91    o model/src:
92      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
93        and fix initialisation when using sigma-coords.
94    o model/src:
95     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
96       to their current value at the beginning of forward_step.F": add a new run-time
97       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
98     - set doResetHFactors=T in the following test exp:
99        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
100        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
101        and tutorial_global_oce_in_p (nonLinFS in p)
102    o pkg/ecco
103      - added IES cost term
104    o verification/advect_xz
105      - scale down the depth by 1/100 (from 200 km to just 2.km)
106      - add secondary test using divergent flow, r-star and implicit vertical advection.
107      - add note (check_conserve_TS.txt) and matlab script to check global
108        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
109    o pkg/rbcs:
110      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
111    o pkg/obcs (Stevens BCs):
112      - fix various problems in the phase speed computations of the Stevens
113        boundary conditions:
114        - sign error for western and southern boundaries,
115        - time tendencies were underestimated by factor of dTracerLev and some just
116          zero (for multidim advection schemes) -> now estimate time tendencies
117          from difference between previous (n) time level and the one before (n-1);
118          this requires storing a field per tracer per boundary, also in the pickup
119          files.
120        - replace deltaTmom in cflMer/Zon computation with dTracerLev
121        - set default phase velocity to cflMer/Zon
122      - update verification experiment exp4.stevens
123    o pkg/generic_advdiff (implicit_r):
124      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
125        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
126      - fix implicit vertical diffusion or advection with NonLin FreeSurf
127        (was using current recip_hFacC instead of future recip_hFacC): set future
128        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
129        solver S/R ;
130      - fill diagnostics of vertical advective fluxes (computed from tendency)
131        when using implicit vert. advection;
132      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
133         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
134         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
135         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
136    o pkg/diagnostics:
137      - add diags for T & S tendency which goes through Adams-Bashforth.
138    
139    checkpoint63f (2011/11/30)
140    o pkg/obcs/obcs_calc_stevens.F:
141      - join some loops to reduce number of if-statements
142      - fix a bug in code for northern and southern boundaries.
143    o pkg/seaice/seaice_init_varia.F
144      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
145        caused zero ice-velocities for the B-grid code
146    o pkg/seaice/seaice_init_fixed.F
147      - fix a bug in the initialisation of the second metric terms
148        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
149      - this affects all seaice configurations with useCurviLinearGrid = .true.
150        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
151        = .true. (default)
152      - the only verification experiment affected is global_ocean.cs32x15:
153        icedyn, seaice, and seaice_dynmix (AD)
154    o pkg/thsice/thsice_diagnostics_state.F
155      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
156        not contain garbage that can lead to surprises in diagstats_calc.F
157    o model/src:
158      - move bi,bj loops inside INTEGR_CONTINUITY ;
159      - call INTEGR_CONTINUITY directly from forward_step.F
160        (previously called from momentum_correction_step.F)
161      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
162        forward_step.F and pkg/ecco/the_main_loop.F
163    o model/src/do_oceanic_phys.F:
164      - reset addMass to zero only if useICEFRONT ;
165      - separated k-loop for rhoInSitu calculation ;
166      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
167        and at constant T,S (= WdRHOdP);
168      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
169        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
170        transport of locally-referenced potential density);
171        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
172    o gluemnc:
173      - replace ncrcat with ncks when adding variables to *.glob.nc
174      - change the way variables without record dimensions are handled so that
175        files that have variables with and without record variables can be glued:
176        add a record dimension with a new unique name to be able to differentiate
177        between variable with and without a-prior record dimensions. Remove
178        this record dimension before adding the variable to the *.glob.nc file.
179        This procedure automatically works also for grid.*.nc files that do not
180        have any record dimension.
181    o verification/cpl_aim+ocn:
182      - generate new reference output on baudelaire (gfortran, mpich2) (previously
183        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
184    o pkg/obcs/obcs_calc_stevens.F:
185      - add code for northern and southern boundaries.
186      - reorder some loops to save some operations and so that drFBar can be scalar
187    o model/src:
188      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
189        truncation) and add diagnostics for Adams-Bashforth tendency increment.
190      - update test-exp. AD output:
191        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
192      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
193        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
194        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
195        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
196        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
197        tutorial_plume_on_slope.
198    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
199      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
200      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
201      does not even come with an F77 compiler anymore, this should not be
202      a limitation
203    
204    checkpoint63e (2011/11/06)
205    o pkg/seaice adjoint of LSR:
206      - substantially rework STORE dirs.
207      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
208        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
209        and only perform SOLV_MAX_FIXED adjoint iters.
210        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
211        always goes to same record, meaning that the last forward field will be
212        the one used in the adjoint - an approximation.
213      - now produces non-zero LSR-related gradients, and acceptable gradients for
214        An's zonal (x-z) test case (to be checked in)
215      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
216        (but these are screwed up by the thermodynamics in the first place);
217        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
218        output_adm.txt also reflects changes to seaice_lsr
219      - global_ocean.cs32x15:
220        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
221          (output_adm.seaice.txt was updated)
222        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
223          (output_adm.seaice_dynmix.txt)
224    o test-exp. exp4+stevens:
225      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
226    o pkg/seaice (lsr solver):
227      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
228        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
229      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
230      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
231        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
232      - compute (with new S/R) and print initial (+ free-driff sol. if available)
233        and final residual of linearised system.
234    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
235      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
236    o pkg/obcs: Stevens BCs (still only for east and west)
237      - fix Stevens BCs by using intermediate velocities of previous
238        time step as "baroclinic" contribution rather velocity of one grid cell
239        inside the boundaries; more consistent but makes the entire treatment
240        more complicated, requires new pickup files and two new S/Rs:
241        obcs_copy_uv_n and obcs_save_uv_n
242        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
243        (undefined by default)
244      - silently move computation of some grid factors into separate loops to
245        save some recomputations
246      - add a hack for non-linear free surface
247      - add a verification experiment to exp4 that tests this code
248    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
249    
250    checkpoint63d (2011/10/25)
251    o pkg/obcs + seaice-dynamics:
252      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
253        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
254        values (consistent with an implicit method).
255      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
256        return to older implementation (same results as before); note that none of
257        the "experimental" OBCS_SEAICE options are implemented in the new version.
258      - switch test exp. seaice_obcs to use new version (update output).
259    o pkg/seaice:
260      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
261      - add parenthesis in Water-Ice drag calculations (evp & lsr);
262      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
263        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
264      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
265        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
266    o pkg/layers:
267      - Include potential density as new coordinate (Thanks to David Munday)
268    o pkg/dic:
269      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
270        carbonate computation/output to CALC_PCO2_APPROX
271    o pkg/generic_advdiff
272      - make TAF generate code that vectorizes:
273        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
274    o model/src:
275      - improve vectorization also for adjoint code of
276        solve_tridiagonal and solve_pentadiagonal. As this requires up to
277        5 new 3D-fields, this code is only turned on for the combination of
278        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
279        for singular matrix check (only for TARGET_NEC_SX).
280      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
281        ALLOW_AUTODIFF. This flag now needs to be set outside of
282        solve_tri/pentadiagonal.F
283    o pkg/exf:
284      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
285        optional namelist EXF_NML_OBCS).
286      - add many debug-print (to trace down where pkg/cal error msg comes from)
287    o pkg/mom_vecinv/mom_vi_hdissip.F
288      - rearrange loops so that vectorization is improved and in particular
289        the adjoint routine vectorizes. The code is a little longer now, but I
290        think easier to read.
291        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
292    o pkg/seaice:
293      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
294    o pkg/exch2:
295      - alternative code (without tile x tile matrix) for cumulated (global) sum;
296        used as default; keep using matrix version in adjustment.cs-32x32x1.
297    o tools/build_options:
298      - after merging some MPI and/or multi-threads specific optfiles so that
299        the modified default optfile support both built (using genmake2 -mpi
300        for the MPI built, using genmake2 -omp for OpenMP built),
301        move now obsolete optfiles to tools/build_options/unsupported/
302       (add copy of email sent to support list in doc/optfiles_changes.txt)
303    
304    checkpoint63c (2011/09/28)
305    o pkg/ebm:
306      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
307        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
308    o pkg/seaice (SItracer pickup)
309    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
310      To be done:
311      - thorough testing of missing fields in S/R seaice_read_pickup
312      - thorough matching between generic tracers and specific fields used
313        (e.g. volume-weighted age, area-weighted age, salinity, ...)
314    o pkg/grdchk:
315      - all procs calculate and print finite-difference gradient (for testreport)
316      - change description output used by testreport;
317      - AD testing: also compare and report Finite-difference gradient;
318        => update all output_adm*.txt
319    o test exp. global_ocean_ebm:
320      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
321        and turn on exactConserve; update (fwd) output.
322    o pkg/seaice (LSR):
323      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
324      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
325        * identical results with non-CS topology (but save up to half of EXCH calls)
326        * no much changes in cs-32 verification tests since no ice at face edges
327         (differences due to convergence criteria, since nb of iterations changed)
328        * expect some differences on lat-lon-cap grid.
329        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
330    o pkg/exch2:
331      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
332        many tiles); until alternative coding is added, just add a stop.
333    o pkg/kpp:
334      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
335        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
336    o optfiles:
337      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
338        into corresponding standard one, which now support different build:
339        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
340      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
341    o pkg/obcs (seaice):
342      - add missing EXCH for uIce,vIce after applying OBCS;
343      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
344        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
345        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
346      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
347      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
348        and eedata.mth for MPI and mutlti-threaded testing.
349    o pkg/flt:
350      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
351      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
352      - fix pickup and trajectories + profiles output with multi-threads;
353      - add parameter to select group of fields to write along trajectory and
354        profile (default unchanged);
355      - only call PORT_RAND* function when flt_noise <> 0;
356      - add multi-threaded test for verification exp. flt_example.
357    o eesupp/src:
358      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
359      - USE_OMP_THREADING: check that number of threads (from eedata) matches
360        actual number (from env.var. setting).
361    o pkg/ebm:
362      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
363      - add multi-threaded test for verification exp. global_ocean_ebm
364    
365    checkpoint63b (2011/08/29)
366    o pkg/ebm:
367      - fix sign of runoff;
368      - update directly forcing fields (Qnet,EmPmR) to use standard
369        external_forcing_surf.F (remove ebm_forcing_surf.F);
370      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
371      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
372        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
373      - update global_ocean_ebm parameters file data and update output (fwd+ad).
374    o verification/matrix_example:
375      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
376        MPI and mutlti-threaded testing.
377    o pkg/matrix:
378      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
379      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
380      - fix for multi-threaded (remove DATA statement);
381      - use standard DIFFERENT_MULTIPLE function;
382      - add MATRIX_OPTIONS.h
383    o verification/matrix_example:
384       To allow to split the domain in several tiles, change the domain size
385        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
386        Western side) of land points.
387    o (*_)write_pickup:
388      - fix few bugs in mypackage_read/write_pickup.F
389      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
390        array of length 1 (was caught by compiler syntax-check).
391    o pkg/diagnostics (velocity potential solver):
392      - fix initialisation of main diagonal matrix (for overlap values)
393    o tools/build_options:
394      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
395        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
396      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
397        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
398        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
399        and use "-devel" testreport option for standard testing on baudelaire.
400    o pkg/grdchk:
401      - Assume that all gradient-check position are within the same tile
402        corresponding to global indices (iGloTile,jGloTile) and that
403        positions (i,j indices or nbeg) are local to this tile;
404      - set tile local-indices and proc. number according to tile global-indices;
405      - remove grdchkwhichproc from namelist (retired param);
406      - send adjoint gradient to all procs so that all procs print it to STDOUT;
407      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
408    o adding package bbl (Bottom Boundary Layer)
409      description in MITgcm/pkg/bbl/bbl_description.tex
410      example/test experiment in MITgcm_contrib/bbl
411    o adjoint verifications
412      - changed 5 experiments to multi-tiles
413        * global_ocean.90x40x15
414        * obcs_ctrl
415        * offline_exf_seaice
416        * tutorial_dic_adjoffline
417        * tutorial_tracer_adjsens
418        changed reference output for those that crossed tile boundaries
419        (changed choices of gradient check positions)
420      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
421      - temporary bug fix in grdchk_loc.F for obcs
422    o genmake2 & testreport
423      - add target "obj" (just for OBJFILES files) to Makefile;
424      - add option to specify FEXTRAFLAGS on command line.
425    o pkg/mypackage:
426      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
427    
428    checkpoint63a (2011/08/02)
429    o pkg/diagnostics (velocity potential):
430      - fix velocity-potential calculation when using OBCS: balance net inflow
431        at each level (new S/R OBCS_DIAG_BALANCE).
432      - fix some of the problems with OBCS in stream-function calculation.
433    o pkg/exf/exf_readparms.F
434      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
435        EXF_NML_OBCS) more consistent, so that you need not have these lists
436        in data.exf when they are not used.
437    o optim/optim_readdata.F:
438      - add some output about obcs variables that might help debugging
439      - add a check about nvarlength
440    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
441    o pkg/diagnostics (velocity potential):
442      - fix mask for OBCS (still problems in stream-function with OBCS);
443      - add specific parameter (default = main code CG2D params) for solver;
444      - in case of poor convergence, use solution corresponding to lowest residual.
445    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
446      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
447      and should be avoided where possible.
448    o model/src (rStar):
449      - include r* effect on reference-state (PhiRef) in totPhiHyd
450        (so that it's really the potential anomaly at the cell center);
451        affect solution only if z* with full pressure in EOS.
452      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
453        update output (because of z* in totPhiHyd and viscA4 changes);
454      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
455        @ constant r) until interpolation at constant r is implemented.
456    o pkg/diagnostics
457      - fix RCENTER diagnostics in case cell center is not at interface middle
458    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
459      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
460      that THETA and SALT are "conservative temperature" and "absolute
461      salinity"
462    o pkg/ctrl
463      - fix computation of endrec in s/r ctrl_init_rec
464      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
465    o pkg/seaice/seaice_growth.F
466      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
467        remove then obsolete STORE directives
468      - fix STORE directives for tice and tices, so that only the
469        appropriate part of the fields are stored (and not the entire
470        field); update global_ocean.cs32x15.seaice AD output.
471      - cosmetic changes: adjust CPP flags and indentation for better
472        legibilty
473    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
474      Chris Wilson)
475    o pkg/gmredi:
476       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
477       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
478    
479    checkpoint63  (2011/07/11)
480    o pkg/exch2:
481     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
482     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
483       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
484       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
485    o pkg/diagnostics:
486     - deal with pairs of post-processed diags which are computed together; in
487       particular, re-order list of diags within 1 file to save 2nd computation.
488     - add S/R to compute velocity stream-function (called after velocity-potential
489       calculation) from divergence free transport -> new diagnostics "PsiVEL".
490     - add parameter to select grid-point location where PsiVEL == 0.
491    o eesupp/src:
492       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
493       (specific S/R needed with exch2 topology - for now, just print an error msg)
494    o pkg/shelfice
495     - Implement friction velocity-dependent transfer coefficients following
496       Holland and Jenkins, JPO, 1999
497       Original code by M. Losch with small modifs.
498       Enable with CPP option SHI_ALLOW_GAMMAFRICT
499       and runtime flag SHELFICEuseGammaFrict
500    o verification lab_sea & global_ocean.cs32x15:
501     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
502       does not miss some dependencies (but is slower) and also works with many files
503       (default makedepend limitation for AD built).
504     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
505    o pkg/diagnostics:
506     - add run-time parameter "useMissingValue" (def=False) to fill land-point
507        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
508       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
509     - Extend the use of "missing_value" setting from data.diagnostics for the case
510       of counter-diagnostics (where fraction-weight is zero). This applies both to
511       MNC and MDS output files.
512    o pkg/seaice/seaice_growth.F:
513      - add 'a priori' cap of latent heat flux based on actual mass considerations
514        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
515        non-legacy seaice_solve4temp.
516      - add diagnostic of the residual sublimation freshwater flux (the freshwater
517        flux taken from the ocean if the total actual latent heat fluxes exceed
518        the maximum)
519      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
520       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
521      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
522       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
523      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
524      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
525    o verification 1D_ocean_ice_column:
526       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
527       update results
528    o pkg/diagnostics:
529     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
530       which are not filled-up but computed from other diags ; In this case, the mate
531       diag points to the primary (filled-up) diag to used for post processing.
532     - Update Velocity-potential computation using post-processed diag framework.
533     ==> Change the ordering of fields and time-periods in MDS output file
534       when using periodic averaging: now writes one time record with the full set
535       of fields for this time period, then the next time reccord (it used to be
536       one field with the full set of time records then the next field).
537         Note: this is now similar to NetCDF (MNC) output file. <==
538    
539    checkpoint62z (2011/06/21)
540    o adjoint monitor:
541     - Add adjoint monitor output for packages exf, seaice
542       and update relevant testreport output
543    o pkg/seaice:
544     - re-order diags inits so that they appear in order in available_diagnostics.log
545     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
546       area/heff/hsnow preceeding thermodynamic growth/melt.
547     - modified diag: SIdA; output actual effect, as the description states.
548     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
549     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
550       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
551        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
552     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
553     - added diagnostics for seaice generic tracers (SItr*).
554     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
555     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
556     I. Fenty: 18-Jun-2011:
557     Minor changes to seaice package:
558     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
559        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
560       - Differentiated "regularization variables" from "floor variables"
561        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
562        * hiceMin became SEAICE_hice_reg (old hiceMin)
563          (with _reg meaning regularization variable)
564       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
565        so as to ensure energy conservation when going between phases
566      - A22 was not used anywhere
567     2) Changed regularization procedure for heffActual and hsnowActual to ensure
568        well-boundedness and smooth adjoint in seaice_growth.F
569     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
570        because the old regularization always set heffActual >= 0.05 cm
571     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
572        on AREA when HEFF > 0.
573      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
574        requiring that DISABLE_AREA_FLOOR *not* be defined
575     Affected verifications:
576      - 1D_ocean_ice_column (output.txt output_adm.txt)
577      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
578    o pkg/diagnostics:
579      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
580      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
581        (was _RL, now integer) with option = 0 to retrieve all levels.
582      - add pieces of code to compute velocity potential at each level (new diagnostics
583        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
584        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
585      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
586        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
587        and in diagnostics_fract_fill.F (do not need a valid pointer for the
588        diagnostics counter-mate); check that definition of counter-diagnostic
589        includes a valid counter-mate (in diagnostics_set_levels.F).
590    o model/src (rStar):
591      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
592        affect solution only if z* with full pressure in EOS;
593        update output of test-exp global_ocean.90x40x15.
594    o pkg/seaice:
595      - introduce siEps=1e-5 parameter
596      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
597      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
598      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
599        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
600        as well as ice cover age and ridging index (attached to AREA).
601        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
602        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
603        Up to SItrMaxNum=3 tracers can be used simultaneously.
604    o pkg/salt_plume:
605      -introduce SPsalFRAC run time parameter that sets the fraction of the
606       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
607       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
608    o model debug options:
609      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
610        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
611      - Refine debug-msg printing selection (3 new levels):
612        debugMode  : controls printing of debug messages (sequence of S/R calls).
613        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
614         debLevZero =  0 ; /* level of disabled aux. msg printing */
615         debLevA =  1 ; /* level of minimum  aux. msg printing */
616         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
617         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
618         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
619         debLevE =  5 ; /* level of extensive debug printing */
620        New debugLevel default: with default debugMode value (=F),
621          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
622          and if debugMode=T, default debugLevel = 4 (debLevD).
623        Relation with previous settings:
624         debLevB (=2) corresponds to former debLevA (=1)
625         debLevD (=4) corresponds to former debLevB (=2)
626        Note:
627         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
628         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
629            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
630      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
631        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
632    o pkg/obcs:
633      - change OBCSfixTopo default from True to False (should not change the results);
634        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
635    o pkg/thsice:
636      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
637        2nd layer seaice sublimation (unlikely to happen)
638      - use Interior mask for OBCS in thsice_advection.F (similar to what is
639        done in gad_advection & seaice_advection).
640    o adjoint:
641      bug fix spotted by Gael Forget:
642      seaice_advection and thsice_advection still had
643      legacy CPP options to avoid CS corner updates for adjoint
644    o pkg/seaice:
645      => Change some of the defaults (2011/05/29):
646         - change SEAICEuseFluxForm default (from False to True)
647         - change DIFF1 default (from 0.004 m/s to 0. m/s)
648         And print warnings if DIFF1 is not set in data.seaice and centered
649          avection scheme is used without any diffusion.
650      also:
651      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
652      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
653      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
654        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
655        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
656      update results of test exp.:
657         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
658             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
659             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
660         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
661         seaice_obcs: output (SEAICEuseFluxForm=T)
662      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
663          for standard fwd & AD lab_sea tests (to keep the same output).
664    o pkg/seaice/seaice_growth.F:
665      - use Ian Fenty's capping formulas for actual ice
666      thickness thoughout EVOLUTION branch.
667      - put treatment pathological case #2) in CPP brackets
668      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
669      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
670    o pkg/seaice:
671      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
672      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
673      also pass fac as a param, which can be 1. (to update the tendency
674      field) or the time step (to update the field itself).
675      - seaice_advdiff.F: for multidim, call seaice_diffusion with
676      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
677      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
678      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
679      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
680    o pkg/seaice:
681      diffusion with centered advection scheme (diffus.F & advect.F):
682      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
683        to just compute the laplacian of input-field.
684      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
685      - fix flux-form version in diffus.F to conserve tracer.
686      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
687       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
688    
689    checkpoint62y (2011/05/26)
690    o pkg/seaice:
691     - seaice_growth.F : in EVOLUTION branch, always include
692       a_QSWbyATM_cover in qnet (as it should be).
693     - verification/global_ocean.cs32x15 : update results accordingly
694       (output.seaice.txt output_adm.seaice.txt).
695    o pkg/seaice + obcs:
696     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
697       equivalent of assuming no tracer gradient outside the OB region.
698       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
699     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
700       after changes above);
701     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
702       only at OB location (instead of over a band of OLx width).
703    o pkg/seaice:
704     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
705       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
706    o pkg/obcs:
707      - split header file "OBCS.h" into 4 separated files:
708        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
709       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
710         (contain no conditional statement which depends on OBCS options).
711      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
712        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
713    o ctrl, cost, grdchk & autodiff pkgs:
714      - make options file more standard (like other {PKG}_OPTIONS.h file but
715        with AD_CONFIG.h); clean-up some of the included header files.
716    o pkg/obcs:
717      - do not mask tracer when applying OB (tracer == 0 could generate problems)
718      - apply tracer OB values to tracer field only at OB location (instead of
719        over a band of OLx width)
720      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
721      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
722        obcs_apply_tloc.F & obcs_apply_sloc.F
723    o obcs in model/src:
724      - call OBCS_APPLY_W only if NonHydrostatic.
725      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
726      - reset dEtaHdt and wVel to zero outside OB interior region ;
727      - leave tracer unchanged outside OB interior region: This has no effect
728        on the solution but just to prevent unrealistic tracer value outside OB.
729      - zero out velocity outside OB interior region: This has no effect on
730        the solution but just to prevent unrealistic velocity outside OB.
731    o obcs and non-lin free-surf:
732       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
733       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
734       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
735       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
736       update results of test-exp. exp4(nlfs).
737    o exp4 (nlfs) test-exp:
738       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
739       with NonLin-FreeSurf); update output.nlfs.txt
740    o obcs and 2d/3d solver norm:
741       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
742       and outside OB interior region (will allow to place OB further inside the
743       domain). Depending on the domain, can affects cg2d-Norm (previous
744       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
745       and cg3d-Norm (previous Norm was computed before canceling OB terms),
746       e.g. in tutorial_plume_on_slope.
747      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
748    o pkg rbcs:
749      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
750      - add capability to apply relaxation to horizontal velocity uVel & vVel.
751    o pkg/grdchk: add gradient check for control variable xx_shifwflx
752    o pkg/shelfice/shelfice_init_fixed.F
753      fix CPP-flag combinations
754    o pkg/seaice: Merge iceage code of Pierre Rampal
755      * update/change/correct ice age calculations
756      * add age updates for pathological cases
757      Probably needs more testing...
758    
759    checkpoint62x (2011/05/13)
760    o pkg/mom_vecinv:
761       high-order vorticity scheme: use interior masks (maskInW & S)
762       to zero-out (outside OB) gradient of vorticity.
763    o verification exp.:
764       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
765       hs94.128x64x5 and seaice_obcs ; update results.
766    o pkg/obcs:
767      fix bug in OBeta for YZ sections in obcs_exf_load.F
768    o pkg/ctrl, pkg/shelfice, and optim:
769      - add new control variable xx_shifwflx (fresh water flux underneath ice
770        shelves). This is almost as tedious as obcs-ctrl, because the
771        variables needs its own mask.
772      - add a cost function term that penalizes the deviation of xx_shifwflx
773        from the first guess (zero) in analogy to other control variables
774    o pkg/shelfice:
775      - start basic adjoint
776    o pkg/ctrl:
777      - remove extra 2D field "for good measure" when initializing in
778        ctrl_set_globfld_[xy/xz/yz].F
779      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
780      - improve error messages in ctrl_set_unpack_*
781    o OBC implementation in momentum:
782       use interior masks (maskInC,W & S) in momentum S/R:
783       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
784       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
785       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
786       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
787       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
788        (and also with Leith/Smagorinsky harmonic-viscosity).
789       Update output of experiment dome and exp4 (+nlfs).
790    o exp4 test-exp:
791      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
792        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
793        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
794        time-varying OB at Western-side for wVel (NonHyd); update output.
795      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
796        and biharmonic-viscosity ; also use prescribed time varying OB.
797    o pkg/obcs:
798      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
799    o model/src:
800      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
801      - initialise startTime & nIter0 with unlikely values: allows to set one
802        from the other without ambiguity.
803    o seaice_obcs test-exp.:
804      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
805    o pkg/obcs:
806      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
807        no longer needed with maskInC,W,S in pkg/generic_advdiff.
808    o pkg/seaice:
809      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
810        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
811      - fixed bug in the initialization of sea ice salinity variable HSALT
812        in seaice_init_varia.F  (removed dependence on ICE2WATR)
813    o fizhi-cs test exp.:
814       switch reference output convention for these 2 non-standard test-exp,
815        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
816          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
817       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
818    o model/inc:
819      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
820        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
821    o pkg/seaice:
822      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
823    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
824      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
825        and initial HSALT
826    
827    checkpoint62w (2011/04/26)
828    o pkg/mom_fluxform:
829      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
830      - use parameter "sideDragFactor" in no-slip BC side-drag part.
831      - update output of exp. global_ocean.90x40x15
832    o pkg/mom_vecinv:
833      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
834    o update seaice exp.:
835      use more consistent parameter values (remove "backward compatability only":
836       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
837      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
838       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
839    o update test-exp global_ocean.90x40x15:
840      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
841      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
842      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
843      o turn on zStar & viscA4 in standard set-up (dir input/)
844        and update output files: output.txt & output.dwnslp.txt
845    o new AD-test experiment: obcs_ctrl
846      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
847    o pkg/dic:
848      fix two bugs in handling water vapour pressure in carbonate chemistry
849      and air-sea fluxes. Found by Val Bennington and Galen McKinley
850      (add DIC Option = WATERVAP_BUG to recover old results)
851      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
852    o adding allowInteriorFreezing option to check for water below freezing point
853      at depth and bring the negative heat anomaly to the surface level
854    o pkgs _fields_load:
855      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
856      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
857        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
858        rbcs to get interpolation weights and time reccord number.
859      - fix multi-threading in aim_fields_load.F
860      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
861    o external_fields_load:
862      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
863       interpolation weights) to use in a periodic time-series ; do not divide by
864       time-step to convert to integer:
865       - this fixes case where externForcingPeriod is not multiple of time-step
866          (Thanks to Christopher L. Wolfe)
867       - this fixes case where externForcingPeriod is an odd multiple of time-step
868         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
869      store index of time-record which is currently loaded:
870       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
871       - needed for the adjoint but not yet used because of extensive recomputations;
872         (to be fixed soon)
873    
874    checkpoint62v (2011/04/02)
875    o verification/1D_ocean_ice_column added to test Ian Fenty's
876      pkg/seaice_growth.F modifications for improving sea ice code differentiability
877    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
878      (new velocity statistics after changing maskInW & maskInS definition)
879    o pkg/generic_advdiff with OBCS:
880      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
881      equivalent to assumption of no tracer gradient outside the OB region.
882      This will affect the results if using obcs+biharmonic diffusion.
883      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
884    o pkg/obcs:
885      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
886      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
887      in Interior region. No impact on solution but affects Velocity monitor stats.
888    o pkg/ptracers (adjoint)
889      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
890      tape file for each tracer
891    o model/inc/src and pkg/autodiff: add parameters that allow to turn
892      of parts of the adjoint code at run time. For now, there are only
893      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
894      parameters are set in data.pkg.
895      This is the lazy coward's version of doing this, but still useful for
896      debugging. In order to do it right, everything needs to be moved to
897      pkg/autodiff.
898    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
899      the end; this fixes the adjoint balancing code for open boundaries.
900    o pkg/ctrl:
901      - change behavior of xx_${varname}period to be analogous to exf-conventions:
902        xx_${varname}period =   0.,  means time-independent control part
903        xx_${varname}period = -12., means one-year-periodic monthly control part
904      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
905        clean up ctrl_init a little, remove unused variables
906      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
907      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
908    
909    checkpoint62u (2011/03/15)
910    o model/src:
911      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
912        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
913      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
914        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
915    o pkg/ctrl/obcs/ecco:
916      - remove obsolete, unused, and partially broken code:
917        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
918        ALLOW_CTRL_OBCS_BALANCE
919      - put a stop statement into ecco/cost_obcsvol.F, but also add
920        cost_obcsvol to ecco_ad_diff.list
921    o pkg/ecco: fix counting cost function contributions for obcs (code
922      by Matt M.) and diffkr for diagnostics
923    o pkg/ecco, pkg/ctrl, pkg/grdchk:
924      add cost penalty terms for initial uvel, vvel, eta controls
925      and I/O for prior error files
926    o pkg/mdsio:
927       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
928       (new argument) to check for tiled file in mdsioLocalDir : this fix the
929       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
930    o pkg/ctrl:
931     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
932       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
933       unused and superfluous variables
934     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
935    o pkg/ecco
936     - enable adjoint of Stevens OB
937    o pkg/ctrl/ecco/grdchk:
938      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
939        Fortunately, we do not have any tests for the numerous cpp-flagged
940        option of "obcs as control parameters" so we will never know
941        if this is an improvement (but at least now things compile).
942      - remove an obsolete initialization from ecco_cost_init_barfiles.F
943      - fix some problems within never used ifdefs to make the code compile
944    o pkg/obcs:
945     - Refine Interior mask definition to work with more complex OB (e.g.
946       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
947       read in Interior mask from file. Check if Interior mask is consistent
948       with OB list of indices.
949    o pkg/seaice
950     - beginning code for a seaice tracer package,
951       but currently only used for seaice age: SEAICE_AGE
952       SEAICE_num = 4
953       iTracer = 1: area-weighted ice age
954               = 2: volume-weighted ice age
955               = 3, 4: template for one-year vs. multi-year ice
956       data.seaice has new namelist SEAICE_PARM03 for arrays related to
957       SEAICE_num
958    
959    checkpoint62t (2011/03/05)
960    o pkg/obcs:
961     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
962       then normal component. This ensures that the normal component is set
963       correctly even when it conficts with tangential setting from an other OB.
964       Affects results of test-experiment seaice_obcs: update the output.txt
965    o pkg/obcs:
966     - add code to monitor statistics of dynamical fields at OB.
967     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
968       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
969       - change default: balance the Net inflow through all OB (instead of balancing
970         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
971     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
972       to match Nortern OB inflow (OBCS_balanceFacN=0).
973    o pkg/seaice:
974     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
975    o pkg/seaice (seaice_growth v 1.113):
976     - reverting seaice_growth to v 1.111 in order to have code with exact bit
977       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
978       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
979       runtime flag SEAICEareaFormula is kept but is inactive
980    o model/src:
981     - add new param to scale curvilinear grid distance and area when using
982       a different sphere radius from the grid-files.
983     - test/check multi-threads EXCH applied to local variable (cg2d_x)
984    o adjoint:
985     - enable adjoint of Stevens OB
986     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
987       (a bit delicate because of potentially modified adj. common block structure;
988       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
989    
990    checkpoint62s (2011/02/15)
991    o pkg/seaice (seaice_growth v 1.112):
992     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
993       computing the ice cover tendency from effective thickness tendencies. Include
994       Ian Fenty's formula.
995     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
996       SEAICEareaFormula.
997     - simplify notations for the various d_HEFF/d_AREA terms.
998    o pkg/gmredi:
999     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
1000       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
1001       add a verification test-run (front_relax.bvp) to test GM_useBVP.
1002    o pkg/seaice (seaice_growth v 1.111):
1003     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
1004     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
1005       also melt ice.
1006    o pkg/seaice:
1007     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
1008     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
1009    o pkg/cheapaml:
1010     - from Nico Wienders: New version of this package.
1011    o pkg/flt:
1012     - add CPP options to prevent floats to re-enter the opposite side of
1013       a periodic domain (default: keep periodicity)
1014    o pkg/gmredi:
1015     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
1016       (needed for multi-dim advection).
1017     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
1018    o model/src:
1019     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
1020    o tutorial_tracer_adjsens
1021     - extend to NLFS and replace maskC by hFacC
1022       (change reference output accordingly)
1023    
1024    checkpoint62r (2011/01/24)
1025    o testreport:
1026     - add option -deloutp (-do) to remove output file after successful run
1027     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
1028       extract exact list of procs from this file ; adjust COMMAND by
1029       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
1030    o pkg/ecco: replace old ineffective way of penalizing deviations from
1031      first guess (of obcs) with code by Matt Mazloff
1032    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
1033      exf/cal
1034      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
1035        and handle case of obcs?period == 0
1036        Not affected by these changes: There is still an inconsistency in
1037        the computation of start/endrec for the obcs variables for ALLOW_CAL
1038        defined (see comment by Menemenlis, 7-Mar-2003)
1039      - make S/R ctrl_get_gen_rec return something meaningful even if
1040        ALLOW_CAL is not defined
1041      - ctrl_getobcs?: simplify code so that it does not need to use
1042                       S/R exf_swapfields
1043    o testreport:
1044       allow to test MPI with different number of processors for each experiment:
1045       create file "SIZE.h.mpi" in each build dir.
1046       Note: update of "-command" argument not yet implemented.
1047    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
1048      alleviate the need for additional 3D tapes when using
1049      the non-inear free surface in the adjoint. This is done
1050      by adding an 'update' of hfacc etc. to their current
1051      value at the beginning of forward_step.F.
1052    o pkg/seaice
1053      seaice_lsr: move stress-divergence computations out of outer pseudo-
1054      timestepping loop
1055    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
1056      up, so that the calls of the ctrl_* subroutines are really at the end
1057      of the routine.
1058    o pkg/gmredi:
1059      allow to specify a 2-D horizontal map and a 1-D vertical profil
1060      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
1061    o pkg/seaice:
1062      move lsr iterations from seaice_dynsolver to seaice_lsr.
1063    o pkg/seaice:
1064      reduce memory footprint of seaice mutldim advection tapes,
1065      by using a 2D tape independent of the generic_advdiff ones,
1066      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
1067    
1068    checkpoint62q (2010/12/29)
1069    o model/src:
1070      - check horizontal grid-spacing for unset or zero/negative values.
1071      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
1072    o pkg/flt:
1073      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
1074      - precision of input and output files set according to readBinaryPrec
1075        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
1076      - initial float position from tiled file was not converted to index space
1077        (looks like a bug): fixed to make it similar to initial pos. global file.
1078    o global_ocean.cs32x15:
1079       change SIZE.h of AD set-up to get same tiling as with MPI.
1080       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
1081    o model/src:
1082       add flag to control printing of domain fields (bathymetry, hFac ...) in
1083       ini_mask_etc (call to plot_fieds_xy*).
1084    o pkg/thsice:
1085       if useEXF, some forcing fields are not valid in overlap: fixed by computing
1086       over the interior only + apply EXCH at the end (like with SEAICE advection).
1087    o pkg/mdsio:
1088      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
1089        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
1090      - change barrier call for safe multi-threads access to 3-D shared buffer.
1091      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
1092      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
1093        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
1094    o pkg/flt:
1095      - add fourth-order Runge-Kutta integration
1096      - add basic exch2 support (only 1 facet supported so far!)
1097    o pkg/mdsio+rw:
1098      new S/R to read local (or tile independent) vector (read counterpart of
1099       mds_writevec_loc, and front-end write_glvec_rl/rs).
1100    o global_ocean.cs32x15: additional input_ad.seaice experiment
1101        that uses pkg/seaice rather than pkg/thsice.
1102        (using multidim advection for seaice)
1103    o towards more F95 syntax for array specification in namelist:
1104      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
1105        of all verification experiments.
1106           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
1107          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
1108      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
1109    o global_ocean.cs32x15: additional input.seaice experiment
1110        that uses pkg/seaice rather than pkg/thsice.
1111    
1112    checkpoint62p (2010/12/17)
1113    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
1114        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
1115    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
1116        allow for use of multim. advection in seaice adjoint.
1117    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
1118      - first attempt to close budgets by taking into account the freshwater
1119        flux implied by the sublimation of snow and ice. So far only the
1120        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
1121        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
1122    o eesupp/src:
1123      new S/R with new option (NML_EXTENDED_F77) to change array specification
1124      from F95 standard to commonly accepted extended F77 form.
1125      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
1126      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
1127      for less tolerant f77 compiler (e.g., pgf77, g77).
1128    o globalFiles:
1129      commented out in parameter file "data" since it's not safe with MPI
1130      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
1131      in this case); no longer commented out in restart test (tst_2+2).
1132    o add adTapeDir to specify a special directory where adjoint tapes are
1133      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
1134      and cannot be used together with mdsioLocalDir.
1135    o nesting pkgs:
1136      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
1137      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
1138      - add parameter files + utils dir + output from short run on beagle.
1139    o pkg/seaice:
1140        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
1141    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
1142      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
1143    
1144    checkpoint62o (2010/11/25)
1145    o pkg/exf:
1146      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
1147    o pkg/seaice:
1148      - seaice_ocean_stress: split a loop for better vectorization of the
1149        adjoint code
1150      - seaice_growth.F: fix bug in conservation of freshwater connected to
1151        capping of heff, put contribution into d_HEFFbyNEG
1152      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
1153        by something more sensible (parameters that are what their name implies)
1154      - change some defaults, so that by default exf-parameters are used for
1155        things like rhoAir, cpAir,latent/sensible heat parameters, in order
1156        to reproduce the old results, many data.seaice now contain funny values
1157        for cpAir and latent heat of sublimation
1158    o packages_readparms.F: move exf_readparms up in line so that
1159        exf-parameters are visible for other packages (e.g. seaice)
1160    o debugMode & debugLevel=2:
1161      - differentiate between debugMode & debugLevel=2:
1162        debugMode: controls printing of debug messages (sequence of S/R calls).
1163        debugLevel: controls printing of algorithm intermediate results and stats.
1164      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
1165        => allows to print debug-stats without all sequence of call messages.
1166      - switch control of debug print from debugLevel to debugMode in many S/R.
1167    o pkg/obcs (obcs-sponge):
1168        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
1169        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
1170  o pkg/generic_advdiff:  o pkg/generic_advdiff:
1171    - record overlap minimum size for each advection scheme;    - record overlap minimum size for each advection scheme;
1172    - refine criteria on overlap minimum size;    - refine criteria on overlap minimum size;

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