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revision 1.1204 by jmc, Tue Dec 8 00:35:38 2009 UTC revision 1.1578 by mlosch, Fri Jan 20 15:49:11 2012 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
8      to make TAF generate vectorizable code
9    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
10       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
11       have flags that do this more efficiently.
12    o pkg/diagnostics/diagstats_calc.F
13      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
14    o pkg/obcs (with exch2):
15      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
16        and remove code (in obcs_readparms.F) which was based on EXCH of indices
17        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
18    o pkg/exf and seaice exp:
19      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
20        so that switching off area & heff advection flags does not affect results.
21      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
22      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
23        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
24        results of verification experiments: 1D_ocean_ice_column(fwd),
25        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
26        and offline_exf_seaice (all 4).
27    o pkg/seaice:
28      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
29        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
30      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
31        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
32        not multi-dim advection;
33      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
34        SHORTWAVE_HEATING #undef.
35    o optim: make Makefile more robust (?)
36    o pkg/obcs:
37      * fix treatment of obcs_read_pickup for TAF
38    o pkg/shelfice:
39      * add missing initialisation of num_shifwflx
40      * new adjoint verification exp. for isomip
41      * change Prandtl and Schmidt numbers from generic formulations
42        (in terms of model diffus. and visc.) to separate runtime
43        parameters, with Holland and Jenkins (1999) default values.
44    o pkg/exf (interpolation):
45      - extended input field (2 rows) near the N & S poles:
46        * fill in with the symetric value (when even Nb of data in longitude)
47        * add average value at the poles only for scalar quantities ; for vector
48          component interpolation, skip the averaging and keep duplicated values,
49          unless the 2 components have same location (uvInterp=T) in which case
50          interpolate the 2 components together using S/R EXF_INTERP_UV.
51      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
52        together: this allows to account properly for local orientation when
53        averaging at N & S pole.
54      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
55        exf-interpolation near N & S poles. Undef by default.
56      - add debug check/print on 1rst iter if debugLevel >=2.
57    o pkg/exf:
58      - change masking flags definition (no longer "parameter"), put them in
59        common block and set them in S/R EXF_INIT_FIXED.
60      - change recognized masking flag from s,u,v to c,w,s since the mask
61        to use (maskC,W,S) depends on position on model grid and has little to
62        do with scalar/vector difference; fix masking if using P-coordinates.
63      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
64        and update results of exp. global_with_exf (x2).
65      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
66    o pkg/obcs
67      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
68    o pkg/exf (interpolation):
69      - assume periodicity in X only if input field cover full longitude range.
70      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
71        and should vectorise).
72      - fix input lat of the 2 added row (in case we provide N.pole data).
73    
74    checkpoint63h (2011/12/30)
75    o pkg/seaice:
76      - change declaration of UVM from _RL to _RS in order to get B-grid
77        uIce,vIce monitor when _RS = real*4
78    o pkg/offline:
79      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
80      - compute vertical velocity if not read from file (switch on exactConserv
81        & staggerTimeStep);
82      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
83    o verification:
84      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
85        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
86        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
87      - update output of exp. global_ocean.cs32x15.viscA4 after changing
88        grid-file angles (used here for coriolis-3d);
89      - remove (or gzip) few files not needed to run fizhi-cs experiments.
90    o pkg/exf (vector interpolation):
91      - rotate vector component toward local grid-axis orientation using grid-angles
92        (stored in GRID.h) instead of locally computed rotation angle; keep old code
93        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
94    o pkg/seaice:
95      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
96        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
97    o pkg/PKG_OPTIONS.h files:
98      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
99        outside of the #ifdef ALLOW_THISPKG / #endif block.
100      - update verification/*/code/PKG_OPTIONS.h files.
101    o add a verification experiment (offline_exf_seaice/input.seaice) that test
102      the B-grid LSOR solver
103    o pkg/seaice: sort out emissivity and long wave radiation step 2:
104      - add emissivity for snow and ice as new run-time parameters
105        (unfortunately) that default to the corresponding exf values; this
106        changes results in most verification experiments so that for backward
107        compatibility these parameter have to be set explicitly to inconsistent
108        values (ugly);
109      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
110        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
111        until we agree how to handle this bug properly
112    o pkg/exf (interpolation):
113      - add a set of run-time param ({inputfield}_interpMethod), one for
114        each interpolated input field, to select the interpolation method
115        with a value of zero switching off the interpolation;
116      - print interpolation parameters to standard output;
117      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
118        (to use instead runoff_interpMethod=0 in data.exf).
119      - simplify default setting of interpolation parameters (for all fields,
120        set position to match model grid cell-center position, leading to trivial
121        interpolation in case of regular Lat-Lon grid) and fix for the case of
122        non-uniform delY.
123    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
124       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
125       this factor is absolutely required, because the lw exitance (= out-going
126       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
127       where the reflectivity rho = 1-emissivity for conservation reasons. Once
128       this is established, we can remove the CPP-Flag (if we want to).
129    o pkg/seaice:
130      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
131        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
132      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
133        what the name implies (and not emissivity*BoltzmannConstant), this means
134        the old default value of 5.5e-8 now means
135        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
136        S/R exf_readparms
137      - FV-discretization of the B-grid LSOR solver, turn on with
138        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
139        of the calling routine dynsolver, so that B and C-grid code look a
140        little more alike.
141      - fix index bugs in ostres.F (B-grid code)
142    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
143    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
144      default for SEAICE_emissivity, if useEXF; requires setting a wrong
145      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
146      backward compatiblity
147    o model/src: use sigmaR in calc_ivdc
148    
149    checkpoint63g (2011/12/16)
150    o pkg/seaice/seaice_growth.F:
151      fix heat conservation of the coupled ocean-seaice system.
152      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
153      solid vs liquid water treatment is resolved via QNET.
154    o pkg/seaice/seaice_growth.F:
155      add missing term for sublimation in saltFlux, which was breaking conservation.
156    o pkg/seaice/seaice_model.F:
157      Remove this patholigical case treatment in evolution branch,
158      where it is un-necessary and breaks conservation.
159      Update global_ocean.cs32x15/results accordingly for
160      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
161    o model/src:
162      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
163      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
164    o pkg/obcs:
165      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
166      tendency for temperature and salinity that is then applied to update
167      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
168      horizontal advection and diffusion contributions on the boundary (in
169      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
170      removing the mask in S/R timestep_tracer. The advantage of this approach is
171      that the updated tracer values include contributions from the surface
172      forcing and vertical diffusion.
173      This modification changes exp4.stevens because of vertical diffusion.
174    o model/src:
175      change non-curvilinear grid setting to also work with exch2 + blank tiles:
176      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
177        face dimensions.
178      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
179        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
180        and INI_SPHERICAL_POLAR_GRID.
181      change test-experiment global_ocean.90x40x15:
182      - split the domain in many more tiles (9x4 tiles of 10x10 each);
183      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
184      - update results of both test (std & dwnslp).
185    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
186       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
187    o model/src:
188      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
189        and fix initialisation when using sigma-coords.
190    o model/src:
191     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
192       to their current value at the beginning of forward_step.F": add a new run-time
193       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
194     - set doResetHFactors=T in the following test exp:
195        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
196        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
197        and tutorial_global_oce_in_p (nonLinFS in p)
198    o pkg/ecco
199      - added IES cost term
200    o verification/advect_xz
201      - scale down the depth by 1/100 (from 200 km to just 2.km)
202      - add secondary test using divergent flow, r-star and implicit vertical advection.
203      - add note (check_conserve_TS.txt) and matlab script to check global
204        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
205    o pkg/rbcs:
206      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
207    o pkg/obcs (Stevens BCs):
208      - fix various problems in the phase speed computations of the Stevens
209        boundary conditions:
210        - sign error for western and southern boundaries,
211        - time tendencies were underestimated by factor of dTracerLev and some just
212          zero (for multidim advection schemes) -> now estimate time tendencies
213          from difference between previous (n) time level and the one before (n-1);
214          this requires storing a field per tracer per boundary, also in the pickup
215          files.
216        - replace deltaTmom in cflMer/Zon computation with dTracerLev
217        - set default phase velocity to cflMer/Zon
218      - update verification experiment exp4.stevens
219    o pkg/generic_advdiff (implicit_r):
220      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
221        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
222      - fix implicit vertical diffusion or advection with NonLin FreeSurf
223        (was using current recip_hFacC instead of future recip_hFacC): set future
224        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
225        solver S/R ;
226      - fill diagnostics of vertical advective fluxes (computed from tendency)
227        when using implicit vert. advection;
228      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
229         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
230         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
231         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
232    o pkg/diagnostics:
233      - add diags for T & S tendency which goes through Adams-Bashforth.
234    
235    checkpoint63f (2011/11/30)
236    o pkg/obcs/obcs_calc_stevens.F:
237      - join some loops to reduce number of if-statements
238      - fix a bug in code for northern and southern boundaries.
239    o pkg/seaice/seaice_init_varia.F
240      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
241        caused zero ice-velocities for the B-grid code
242    o pkg/seaice/seaice_init_fixed.F
243      - fix a bug in the initialisation of the second metric terms
244        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
245      - this affects all seaice configurations with useCurviLinearGrid = .true.
246        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
247        = .true. (default)
248      - the only verification experiment affected is global_ocean.cs32x15:
249        icedyn, seaice, and seaice_dynmix (AD)
250    o pkg/thsice/thsice_diagnostics_state.F
251      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
252        not contain garbage that can lead to surprises in diagstats_calc.F
253    o model/src:
254      - move bi,bj loops inside INTEGR_CONTINUITY ;
255      - call INTEGR_CONTINUITY directly from forward_step.F
256        (previously called from momentum_correction_step.F)
257      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
258        forward_step.F and pkg/ecco/the_main_loop.F
259    o model/src/do_oceanic_phys.F:
260      - reset addMass to zero only if useICEFRONT ;
261      - separated k-loop for rhoInSitu calculation ;
262      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
263        and at constant T,S (= WdRHOdP);
264      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
265        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
266        transport of locally-referenced potential density);
267        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
268    o gluemnc:
269      - replace ncrcat with ncks when adding variables to *.glob.nc
270      - change the way variables without record dimensions are handled so that
271        files that have variables with and without record variables can be glued:
272        add a record dimension with a new unique name to be able to differentiate
273        between variable with and without a-prior record dimensions. Remove
274        this record dimension before adding the variable to the *.glob.nc file.
275        This procedure automatically works also for grid.*.nc files that do not
276        have any record dimension.
277    o verification/cpl_aim+ocn:
278      - generate new reference output on baudelaire (gfortran, mpich2) (previously
279        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
280    o pkg/obcs/obcs_calc_stevens.F:
281      - add code for northern and southern boundaries.
282      - reorder some loops to save some operations and so that drFBar can be scalar
283    o model/src:
284      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
285        truncation) and add diagnostics for Adams-Bashforth tendency increment.
286      - update test-exp. AD output:
287        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
288      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
289        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
290        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
291        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
292        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
293        tutorial_plume_on_slope.
294    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
295      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
296      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
297      does not even come with an F77 compiler anymore, this should not be
298      a limitation
299    
300    checkpoint63e (2011/11/06)
301    o pkg/seaice adjoint of LSR:
302      - substantially rework STORE dirs.
303      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
304        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
305        and only perform SOLV_MAX_FIXED adjoint iters.
306        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
307        always goes to same record, meaning that the last forward field will be
308        the one used in the adjoint - an approximation.
309      - now produces non-zero LSR-related gradients, and acceptable gradients for
310        An's zonal (x-z) test case (to be checked in)
311      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
312        (but these are screwed up by the thermodynamics in the first place);
313        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
314        output_adm.txt also reflects changes to seaice_lsr
315      - global_ocean.cs32x15:
316        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
317          (output_adm.seaice.txt was updated)
318        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
319          (output_adm.seaice_dynmix.txt)
320    o test-exp. exp4+stevens:
321      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
322    o pkg/seaice (lsr solver):
323      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
324        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
325      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
326      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
327        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
328      - compute (with new S/R) and print initial (+ free-driff sol. if available)
329        and final residual of linearised system.
330    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
331      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
332    o pkg/obcs: Stevens BCs (still only for east and west)
333      - fix Stevens BCs by using intermediate velocities of previous
334        time step as "baroclinic" contribution rather velocity of one grid cell
335        inside the boundaries; more consistent but makes the entire treatment
336        more complicated, requires new pickup files and two new S/Rs:
337        obcs_copy_uv_n and obcs_save_uv_n
338        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
339        (undefined by default)
340      - silently move computation of some grid factors into separate loops to
341        save some recomputations
342      - add a hack for non-linear free surface
343      - add a verification experiment to exp4 that tests this code
344    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
345    
346    checkpoint63d (2011/10/25)
347    o pkg/obcs + seaice-dynamics:
348      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
349        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
350        values (consistent with an implicit method).
351      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
352        return to older implementation (same results as before); note that none of
353        the "experimental" OBCS_SEAICE options are implemented in the new version.
354      - switch test exp. seaice_obcs to use new version (update output).
355    o pkg/seaice:
356      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
357      - add parenthesis in Water-Ice drag calculations (evp & lsr);
358      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
359        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
360      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
361        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
362    o pkg/layers:
363      - Include potential density as new coordinate (Thanks to David Munday)
364    o pkg/dic:
365      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
366        carbonate computation/output to CALC_PCO2_APPROX
367    o pkg/generic_advdiff
368      - make TAF generate code that vectorizes:
369        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
370    o model/src:
371      - improve vectorization also for adjoint code of
372        solve_tridiagonal and solve_pentadiagonal. As this requires up to
373        5 new 3D-fields, this code is only turned on for the combination of
374        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
375        for singular matrix check (only for TARGET_NEC_SX).
376      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
377        ALLOW_AUTODIFF. This flag now needs to be set outside of
378        solve_tri/pentadiagonal.F
379    o pkg/exf:
380      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
381        optional namelist EXF_NML_OBCS).
382      - add many debug-print (to trace down where pkg/cal error msg comes from)
383    o pkg/mom_vecinv/mom_vi_hdissip.F
384      - rearrange loops so that vectorization is improved and in particular
385        the adjoint routine vectorizes. The code is a little longer now, but I
386        think easier to read.
387        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
388    o pkg/seaice:
389      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
390    o pkg/exch2:
391      - alternative code (without tile x tile matrix) for cumulated (global) sum;
392        used as default; keep using matrix version in adjustment.cs-32x32x1.
393    o tools/build_options:
394      - after merging some MPI and/or multi-threads specific optfiles so that
395        the modified default optfile support both built (using genmake2 -mpi
396        for the MPI built, using genmake2 -omp for OpenMP built),
397        move now obsolete optfiles to tools/build_options/unsupported/
398       (add copy of email sent to support list in doc/optfiles_changes.txt)
399    
400    checkpoint63c (2011/09/28)
401    o pkg/ebm:
402      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
403        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
404    o pkg/seaice (SItracer pickup)
405    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
406      To be done:
407      - thorough testing of missing fields in S/R seaice_read_pickup
408      - thorough matching between generic tracers and specific fields used
409        (e.g. volume-weighted age, area-weighted age, salinity, ...)
410    o pkg/grdchk:
411      - all procs calculate and print finite-difference gradient (for testreport)
412      - change description output used by testreport;
413      - AD testing: also compare and report Finite-difference gradient;
414        => update all output_adm*.txt
415    o test exp. global_ocean_ebm:
416      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
417        and turn on exactConserve; update (fwd) output.
418    o pkg/seaice (LSR):
419      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
420      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
421        * identical results with non-CS topology (but save up to half of EXCH calls)
422        * no much changes in cs-32 verification tests since no ice at face edges
423         (differences due to convergence criteria, since nb of iterations changed)
424        * expect some differences on lat-lon-cap grid.
425        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
426    o pkg/exch2:
427      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
428        many tiles); until alternative coding is added, just add a stop.
429    o pkg/kpp:
430      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
431        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
432    o optfiles:
433      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
434        into corresponding standard one, which now support different build:
435        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
436      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
437    o pkg/obcs (seaice):
438      - add missing EXCH for uIce,vIce after applying OBCS;
439      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
440        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
441        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
442      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
443      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
444        and eedata.mth for MPI and mutlti-threaded testing.
445    o pkg/flt:
446      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
447      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
448      - fix pickup and trajectories + profiles output with multi-threads;
449      - add parameter to select group of fields to write along trajectory and
450        profile (default unchanged);
451      - only call PORT_RAND* function when flt_noise <> 0;
452      - add multi-threaded test for verification exp. flt_example.
453    o eesupp/src:
454      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
455      - USE_OMP_THREADING: check that number of threads (from eedata) matches
456        actual number (from env.var. setting).
457    o pkg/ebm:
458      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
459      - add multi-threaded test for verification exp. global_ocean_ebm
460    
461    checkpoint63b (2011/08/29)
462    o pkg/ebm:
463      - fix sign of runoff;
464      - update directly forcing fields (Qnet,EmPmR) to use standard
465        external_forcing_surf.F (remove ebm_forcing_surf.F);
466      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
467      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
468        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
469      - update global_ocean_ebm parameters file data and update output (fwd+ad).
470    o verification/matrix_example:
471      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
472        MPI and mutlti-threaded testing.
473    o pkg/matrix:
474      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
475      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
476      - fix for multi-threaded (remove DATA statement);
477      - use standard DIFFERENT_MULTIPLE function;
478      - add MATRIX_OPTIONS.h
479    o verification/matrix_example:
480       To allow to split the domain in several tiles, change the domain size
481        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
482        Western side) of land points.
483    o (*_)write_pickup:
484      - fix few bugs in mypackage_read/write_pickup.F
485      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
486        array of length 1 (was caught by compiler syntax-check).
487    o pkg/diagnostics (velocity potential solver):
488      - fix initialisation of main diagonal matrix (for overlap values)
489    o tools/build_options:
490      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
491        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
492      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
493        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
494        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
495        and use "-devel" testreport option for standard testing on baudelaire.
496    o pkg/grdchk:
497      - Assume that all gradient-check position are within the same tile
498        corresponding to global indices (iGloTile,jGloTile) and that
499        positions (i,j indices or nbeg) are local to this tile;
500      - set tile local-indices and proc. number according to tile global-indices;
501      - remove grdchkwhichproc from namelist (retired param);
502      - send adjoint gradient to all procs so that all procs print it to STDOUT;
503      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
504    o adding package bbl (Bottom Boundary Layer)
505      description in MITgcm/pkg/bbl/bbl_description.tex
506      example/test experiment in MITgcm_contrib/bbl
507    o adjoint verifications
508      - changed 5 experiments to multi-tiles
509        * global_ocean.90x40x15
510        * obcs_ctrl
511        * offline_exf_seaice
512        * tutorial_dic_adjoffline
513        * tutorial_tracer_adjsens
514        changed reference output for those that crossed tile boundaries
515        (changed choices of gradient check positions)
516      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
517      - temporary bug fix in grdchk_loc.F for obcs
518    o genmake2 & testreport
519      - add target "obj" (just for OBJFILES files) to Makefile;
520      - add option to specify FEXTRAFLAGS on command line.
521    o pkg/mypackage:
522      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
523    
524    checkpoint63a (2011/08/02)
525    o pkg/diagnostics (velocity potential):
526      - fix velocity-potential calculation when using OBCS: balance net inflow
527        at each level (new S/R OBCS_DIAG_BALANCE).
528      - fix some of the problems with OBCS in stream-function calculation.
529    o pkg/exf/exf_readparms.F
530      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
531        EXF_NML_OBCS) more consistent, so that you need not have these lists
532        in data.exf when they are not used.
533    o optim/optim_readdata.F:
534      - add some output about obcs variables that might help debugging
535      - add a check about nvarlength
536    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
537    o pkg/diagnostics (velocity potential):
538      - fix mask for OBCS (still problems in stream-function with OBCS);
539      - add specific parameter (default = main code CG2D params) for solver;
540      - in case of poor convergence, use solution corresponding to lowest residual.
541    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
542      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
543      and should be avoided where possible.
544    o model/src (rStar):
545      - include r* effect on reference-state (PhiRef) in totPhiHyd
546        (so that it's really the potential anomaly at the cell center);
547        affect solution only if z* with full pressure in EOS.
548      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
549        update output (because of z* in totPhiHyd and viscA4 changes);
550      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
551        @ constant r) until interpolation at constant r is implemented.
552    o pkg/diagnostics
553      - fix RCENTER diagnostics in case cell center is not at interface middle
554    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
555      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
556      that THETA and SALT are "conservative temperature" and "absolute
557      salinity"
558    o pkg/ctrl
559      - fix computation of endrec in s/r ctrl_init_rec
560      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
561    o pkg/seaice/seaice_growth.F
562      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
563        remove then obsolete STORE directives
564      - fix STORE directives for tice and tices, so that only the
565        appropriate part of the fields are stored (and not the entire
566        field); update global_ocean.cs32x15.seaice AD output.
567      - cosmetic changes: adjust CPP flags and indentation for better
568        legibilty
569    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
570      Chris Wilson)
571    o pkg/gmredi:
572       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
573       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
574    
575    checkpoint63  (2011/07/11)
576    o pkg/exch2:
577     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
578     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
579       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
580       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
581    o pkg/diagnostics:
582     - deal with pairs of post-processed diags which are computed together; in
583       particular, re-order list of diags within 1 file to save 2nd computation.
584     - add S/R to compute velocity stream-function (called after velocity-potential
585       calculation) from divergence free transport -> new diagnostics "PsiVEL".
586     - add parameter to select grid-point location where PsiVEL == 0.
587    o eesupp/src:
588       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
589       (specific S/R needed with exch2 topology - for now, just print an error msg)
590    o pkg/shelfice
591     - Implement friction velocity-dependent transfer coefficients following
592       Holland and Jenkins, JPO, 1999
593       Original code by M. Losch with small modifs.
594       Enable with CPP option SHI_ALLOW_GAMMAFRICT
595       and runtime flag SHELFICEuseGammaFrict
596    o verification lab_sea & global_ocean.cs32x15:
597     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
598       does not miss some dependencies (but is slower) and also works with many files
599       (default makedepend limitation for AD built).
600     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
601    o pkg/diagnostics:
602     - add run-time parameter "useMissingValue" (def=False) to fill land-point
603        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
604       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
605     - Extend the use of "missing_value" setting from data.diagnostics for the case
606       of counter-diagnostics (where fraction-weight is zero). This applies both to
607       MNC and MDS output files.
608    o pkg/seaice/seaice_growth.F:
609      - add 'a priori' cap of latent heat flux based on actual mass considerations
610        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
611        non-legacy seaice_solve4temp.
612      - add diagnostic of the residual sublimation freshwater flux (the freshwater
613        flux taken from the ocean if the total actual latent heat fluxes exceed
614        the maximum)
615      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
616       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
617      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
618       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
619      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
620      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
621    o verification 1D_ocean_ice_column:
622       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
623       update results
624    o pkg/diagnostics:
625     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
626       which are not filled-up but computed from other diags ; In this case, the mate
627       diag points to the primary (filled-up) diag to used for post processing.
628     - Update Velocity-potential computation using post-processed diag framework.
629     ==> Change the ordering of fields and time-periods in MDS output file
630       when using periodic averaging: now writes one time record with the full set
631       of fields for this time period, then the next time reccord (it used to be
632       one field with the full set of time records then the next field).
633         Note: this is now similar to NetCDF (MNC) output file. <==
634    
635    checkpoint62z (2011/06/21)
636    o adjoint monitor:
637     - Add adjoint monitor output for packages exf, seaice
638       and update relevant testreport output
639    o pkg/seaice:
640     - re-order diags inits so that they appear in order in available_diagnostics.log
641     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
642       area/heff/hsnow preceeding thermodynamic growth/melt.
643     - modified diag: SIdA; output actual effect, as the description states.
644     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
645     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
646       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
647        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
648     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
649     - added diagnostics for seaice generic tracers (SItr*).
650     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
651     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
652     I. Fenty: 18-Jun-2011:
653     Minor changes to seaice package:
654     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
655        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
656       - Differentiated "regularization variables" from "floor variables"
657        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
658        * hiceMin became SEAICE_hice_reg (old hiceMin)
659          (with _reg meaning regularization variable)
660       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
661        so as to ensure energy conservation when going between phases
662      - A22 was not used anywhere
663     2) Changed regularization procedure for heffActual and hsnowActual to ensure
664        well-boundedness and smooth adjoint in seaice_growth.F
665     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
666        because the old regularization always set heffActual >= 0.05 cm
667     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
668        on AREA when HEFF > 0.
669      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
670        requiring that DISABLE_AREA_FLOOR *not* be defined
671     Affected verifications:
672      - 1D_ocean_ice_column (output.txt output_adm.txt)
673      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
674    o pkg/diagnostics:
675      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
676      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
677        (was _RL, now integer) with option = 0 to retrieve all levels.
678      - add pieces of code to compute velocity potential at each level (new diagnostics
679        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
680        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
681      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
682        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
683        and in diagnostics_fract_fill.F (do not need a valid pointer for the
684        diagnostics counter-mate); check that definition of counter-diagnostic
685        includes a valid counter-mate (in diagnostics_set_levels.F).
686    o model/src (rStar):
687      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
688        affect solution only if z* with full pressure in EOS;
689        update output of test-exp global_ocean.90x40x15.
690    o pkg/seaice:
691      - introduce siEps=1e-5 parameter
692      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
693      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
694      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
695        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
696        as well as ice cover age and ridging index (attached to AREA).
697        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
698        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
699        Up to SItrMaxNum=3 tracers can be used simultaneously.
700    o pkg/salt_plume:
701      -introduce SPsalFRAC run time parameter that sets the fraction of the
702       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
703       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
704    o model debug options:
705      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
706        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
707      - Refine debug-msg printing selection (3 new levels):
708        debugMode  : controls printing of debug messages (sequence of S/R calls).
709        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
710         debLevZero =  0 ; /* level of disabled aux. msg printing */
711         debLevA =  1 ; /* level of minimum  aux. msg printing */
712         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
713         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
714         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
715         debLevE =  5 ; /* level of extensive debug printing */
716        New debugLevel default: with default debugMode value (=F),
717          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
718          and if debugMode=T, default debugLevel = 4 (debLevD).
719        Relation with previous settings:
720         debLevB (=2) corresponds to former debLevA (=1)
721         debLevD (=4) corresponds to former debLevB (=2)
722        Note:
723         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
724         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
725            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
726      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
727        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
728    o pkg/obcs:
729      - change OBCSfixTopo default from True to False (should not change the results);
730        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
731    o pkg/thsice:
732      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
733        2nd layer seaice sublimation (unlikely to happen)
734      - use Interior mask for OBCS in thsice_advection.F (similar to what is
735        done in gad_advection & seaice_advection).
736    o adjoint:
737      bug fix spotted by Gael Forget:
738      seaice_advection and thsice_advection still had
739      legacy CPP options to avoid CS corner updates for adjoint
740    o pkg/seaice:
741      => Change some of the defaults (2011/05/29):
742         - change SEAICEuseFluxForm default (from False to True)
743         - change DIFF1 default (from 0.004 m/s to 0. m/s)
744         And print warnings if DIFF1 is not set in data.seaice and centered
745          avection scheme is used without any diffusion.
746      also:
747      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
748      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
749      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
750        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
751        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
752      update results of test exp.:
753         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
754             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
755             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
756         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
757         seaice_obcs: output (SEAICEuseFluxForm=T)
758      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
759          for standard fwd & AD lab_sea tests (to keep the same output).
760    o pkg/seaice/seaice_growth.F:
761      - use Ian Fenty's capping formulas for actual ice
762      thickness thoughout EVOLUTION branch.
763      - put treatment pathological case #2) in CPP brackets
764      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
765      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
766    o pkg/seaice:
767      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
768      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
769      also pass fac as a param, which can be 1. (to update the tendency
770      field) or the time step (to update the field itself).
771      - seaice_advdiff.F: for multidim, call seaice_diffusion with
772      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
773      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
774      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
775      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
776    o pkg/seaice:
777      diffusion with centered advection scheme (diffus.F & advect.F):
778      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
779        to just compute the laplacian of input-field.
780      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
781      - fix flux-form version in diffus.F to conserve tracer.
782      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
783       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
784    
785    checkpoint62y (2011/05/26)
786    o pkg/seaice:
787     - seaice_growth.F : in EVOLUTION branch, always include
788       a_QSWbyATM_cover in qnet (as it should be).
789     - verification/global_ocean.cs32x15 : update results accordingly
790       (output.seaice.txt output_adm.seaice.txt).
791    o pkg/seaice + obcs:
792     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
793       equivalent of assuming no tracer gradient outside the OB region.
794       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
795     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
796       after changes above);
797     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
798       only at OB location (instead of over a band of OLx width).
799    o pkg/seaice:
800     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
801       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
802    o pkg/obcs:
803      - split header file "OBCS.h" into 4 separated files:
804        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
805       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
806         (contain no conditional statement which depends on OBCS options).
807      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
808        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
809    o ctrl, cost, grdchk & autodiff pkgs:
810      - make options file more standard (like other {PKG}_OPTIONS.h file but
811        with AD_CONFIG.h); clean-up some of the included header files.
812    o pkg/obcs:
813      - do not mask tracer when applying OB (tracer == 0 could generate problems)
814      - apply tracer OB values to tracer field only at OB location (instead of
815        over a band of OLx width)
816      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
817      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
818        obcs_apply_tloc.F & obcs_apply_sloc.F
819    o obcs in model/src:
820      - call OBCS_APPLY_W only if NonHydrostatic.
821      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
822      - reset dEtaHdt and wVel to zero outside OB interior region ;
823      - leave tracer unchanged outside OB interior region: This has no effect
824        on the solution but just to prevent unrealistic tracer value outside OB.
825      - zero out velocity outside OB interior region: This has no effect on
826        the solution but just to prevent unrealistic velocity outside OB.
827    o obcs and non-lin free-surf:
828       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
829       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
830       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
831       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
832       update results of test-exp. exp4(nlfs).
833    o exp4 (nlfs) test-exp:
834       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
835       with NonLin-FreeSurf); update output.nlfs.txt
836    o obcs and 2d/3d solver norm:
837       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
838       and outside OB interior region (will allow to place OB further inside the
839       domain). Depending on the domain, can affects cg2d-Norm (previous
840       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
841       and cg3d-Norm (previous Norm was computed before canceling OB terms),
842       e.g. in tutorial_plume_on_slope.
843      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
844    o pkg rbcs:
845      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
846      - add capability to apply relaxation to horizontal velocity uVel & vVel.
847    o pkg/grdchk: add gradient check for control variable xx_shifwflx
848    o pkg/shelfice/shelfice_init_fixed.F
849      fix CPP-flag combinations
850    o pkg/seaice: Merge iceage code of Pierre Rampal
851      * update/change/correct ice age calculations
852      * add age updates for pathological cases
853      Probably needs more testing...
854    
855    checkpoint62x (2011/05/13)
856    o pkg/mom_vecinv:
857       high-order vorticity scheme: use interior masks (maskInW & S)
858       to zero-out (outside OB) gradient of vorticity.
859    o verification exp.:
860       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
861       hs94.128x64x5 and seaice_obcs ; update results.
862    o pkg/obcs:
863      fix bug in OBeta for YZ sections in obcs_exf_load.F
864    o pkg/ctrl, pkg/shelfice, and optim:
865      - add new control variable xx_shifwflx (fresh water flux underneath ice
866        shelves). This is almost as tedious as obcs-ctrl, because the
867        variables needs its own mask.
868      - add a cost function term that penalizes the deviation of xx_shifwflx
869        from the first guess (zero) in analogy to other control variables
870    o pkg/shelfice:
871      - start basic adjoint
872    o pkg/ctrl:
873      - remove extra 2D field "for good measure" when initializing in
874        ctrl_set_globfld_[xy/xz/yz].F
875      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
876      - improve error messages in ctrl_set_unpack_*
877    o OBC implementation in momentum:
878       use interior masks (maskInC,W & S) in momentum S/R:
879       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
880       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
881       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
882       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
883       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
884        (and also with Leith/Smagorinsky harmonic-viscosity).
885       Update output of experiment dome and exp4 (+nlfs).
886    o exp4 test-exp:
887      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
888        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
889        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
890        time-varying OB at Western-side for wVel (NonHyd); update output.
891      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
892        and biharmonic-viscosity ; also use prescribed time varying OB.
893    o pkg/obcs:
894      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
895    o model/src:
896      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
897      - initialise startTime & nIter0 with unlikely values: allows to set one
898        from the other without ambiguity.
899    o seaice_obcs test-exp.:
900      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
901    o pkg/obcs:
902      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
903        no longer needed with maskInC,W,S in pkg/generic_advdiff.
904    o pkg/seaice:
905      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
906        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
907      - fixed bug in the initialization of sea ice salinity variable HSALT
908        in seaice_init_varia.F  (removed dependence on ICE2WATR)
909    o fizhi-cs test exp.:
910       switch reference output convention for these 2 non-standard test-exp,
911        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
912          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
913       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
914    o model/inc:
915      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
916        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
917    o pkg/seaice:
918      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
919    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
920      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
921        and initial HSALT
922    
923    checkpoint62w (2011/04/26)
924    o pkg/mom_fluxform:
925      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
926      - use parameter "sideDragFactor" in no-slip BC side-drag part.
927      - update output of exp. global_ocean.90x40x15
928    o pkg/mom_vecinv:
929      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
930    o update seaice exp.:
931      use more consistent parameter values (remove "backward compatability only":
932       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
933      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
934       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
935    o update test-exp global_ocean.90x40x15:
936      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
937      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
938      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
939      o turn on zStar & viscA4 in standard set-up (dir input/)
940        and update output files: output.txt & output.dwnslp.txt
941    o new AD-test experiment: obcs_ctrl
942      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
943    o pkg/dic:
944      fix two bugs in handling water vapour pressure in carbonate chemistry
945      and air-sea fluxes. Found by Val Bennington and Galen McKinley
946      (add DIC Option = WATERVAP_BUG to recover old results)
947      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
948    o adding allowInteriorFreezing option to check for water below freezing point
949      at depth and bring the negative heat anomaly to the surface level
950    o pkgs _fields_load:
951      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
952      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
953        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
954        rbcs to get interpolation weights and time reccord number.
955      - fix multi-threading in aim_fields_load.F
956      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
957    o external_fields_load:
958      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
959       interpolation weights) to use in a periodic time-series ; do not divide by
960       time-step to convert to integer:
961       - this fixes case where externForcingPeriod is not multiple of time-step
962          (Thanks to Christopher L. Wolfe)
963       - this fixes case where externForcingPeriod is an odd multiple of time-step
964         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
965      store index of time-record which is currently loaded:
966       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
967       - needed for the adjoint but not yet used because of extensive recomputations;
968         (to be fixed soon)
969    
970    checkpoint62v (2011/04/02)
971    o verification/1D_ocean_ice_column added to test Ian Fenty's
972      pkg/seaice_growth.F modifications for improving sea ice code differentiability
973    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
974      (new velocity statistics after changing maskInW & maskInS definition)
975    o pkg/generic_advdiff with OBCS:
976      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
977      equivalent to assumption of no tracer gradient outside the OB region.
978      This will affect the results if using obcs+biharmonic diffusion.
979      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
980    o pkg/obcs:
981      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
982      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
983      in Interior region. No impact on solution but affects Velocity monitor stats.
984    o pkg/ptracers (adjoint)
985      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
986      tape file for each tracer
987    o model/inc/src and pkg/autodiff: add parameters that allow to turn
988      of parts of the adjoint code at run time. For now, there are only
989      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
990      parameters are set in data.pkg.
991      This is the lazy coward's version of doing this, but still useful for
992      debugging. In order to do it right, everything needs to be moved to
993      pkg/autodiff.
994    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
995      the end; this fixes the adjoint balancing code for open boundaries.
996    o pkg/ctrl:
997      - change behavior of xx_${varname}period to be analogous to exf-conventions:
998        xx_${varname}period =   0.,  means time-independent control part
999        xx_${varname}period = -12., means one-year-periodic monthly control part
1000      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
1001        clean up ctrl_init a little, remove unused variables
1002      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
1003      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
1004    
1005    checkpoint62u (2011/03/15)
1006    o model/src:
1007      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
1008        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
1009      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
1010        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
1011    o pkg/ctrl/obcs/ecco:
1012      - remove obsolete, unused, and partially broken code:
1013        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
1014        ALLOW_CTRL_OBCS_BALANCE
1015      - put a stop statement into ecco/cost_obcsvol.F, but also add
1016        cost_obcsvol to ecco_ad_diff.list
1017    o pkg/ecco: fix counting cost function contributions for obcs (code
1018      by Matt M.) and diffkr for diagnostics
1019    o pkg/ecco, pkg/ctrl, pkg/grdchk:
1020      add cost penalty terms for initial uvel, vvel, eta controls
1021      and I/O for prior error files
1022    o pkg/mdsio:
1023       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
1024       (new argument) to check for tiled file in mdsioLocalDir : this fix the
1025       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
1026    o pkg/ctrl:
1027     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
1028       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
1029       unused and superfluous variables
1030     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
1031    o pkg/ecco
1032     - enable adjoint of Stevens OB
1033    o pkg/ctrl/ecco/grdchk:
1034      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
1035        Fortunately, we do not have any tests for the numerous cpp-flagged
1036        option of "obcs as control parameters" so we will never know
1037        if this is an improvement (but at least now things compile).
1038      - remove an obsolete initialization from ecco_cost_init_barfiles.F
1039      - fix some problems within never used ifdefs to make the code compile
1040    o pkg/obcs:
1041     - Refine Interior mask definition to work with more complex OB (e.g.
1042       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
1043       read in Interior mask from file. Check if Interior mask is consistent
1044       with OB list of indices.
1045    o pkg/seaice
1046     - beginning code for a seaice tracer package,
1047       but currently only used for seaice age: SEAICE_AGE
1048       SEAICE_num = 4
1049       iTracer = 1: area-weighted ice age
1050               = 2: volume-weighted ice age
1051               = 3, 4: template for one-year vs. multi-year ice
1052       data.seaice has new namelist SEAICE_PARM03 for arrays related to
1053       SEAICE_num
1054    
1055    checkpoint62t (2011/03/05)
1056    o pkg/obcs:
1057     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
1058       then normal component. This ensures that the normal component is set
1059       correctly even when it conficts with tangential setting from an other OB.
1060       Affects results of test-experiment seaice_obcs: update the output.txt
1061    o pkg/obcs:
1062     - add code to monitor statistics of dynamical fields at OB.
1063     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
1064       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
1065       - change default: balance the Net inflow through all OB (instead of balancing
1066         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
1067     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
1068       to match Nortern OB inflow (OBCS_balanceFacN=0).
1069    o pkg/seaice:
1070     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
1071    o pkg/seaice (seaice_growth v 1.113):
1072     - reverting seaice_growth to v 1.111 in order to have code with exact bit
1073       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
1074       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
1075       runtime flag SEAICEareaFormula is kept but is inactive
1076    o model/src:
1077     - add new param to scale curvilinear grid distance and area when using
1078       a different sphere radius from the grid-files.
1079     - test/check multi-threads EXCH applied to local variable (cg2d_x)
1080    o adjoint:
1081     - enable adjoint of Stevens OB
1082     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
1083       (a bit delicate because of potentially modified adj. common block structure;
1084       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
1085    
1086    checkpoint62s (2011/02/15)
1087    o pkg/seaice (seaice_growth v 1.112):
1088     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
1089       computing the ice cover tendency from effective thickness tendencies. Include
1090       Ian Fenty's formula.
1091     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
1092       SEAICEareaFormula.
1093     - simplify notations for the various d_HEFF/d_AREA terms.
1094    o pkg/gmredi:
1095     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
1096       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
1097       add a verification test-run (front_relax.bvp) to test GM_useBVP.
1098    o pkg/seaice (seaice_growth v 1.111):
1099     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
1100     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
1101       also melt ice.
1102    o pkg/seaice:
1103     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
1104     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
1105    o pkg/cheapaml:
1106     - from Nico Wienders: New version of this package.
1107    o pkg/flt:
1108     - add CPP options to prevent floats to re-enter the opposite side of
1109       a periodic domain (default: keep periodicity)
1110    o pkg/gmredi:
1111     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
1112       (needed for multi-dim advection).
1113     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
1114    o model/src:
1115     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
1116    o tutorial_tracer_adjsens
1117     - extend to NLFS and replace maskC by hFacC
1118       (change reference output accordingly)
1119    
1120    checkpoint62r (2011/01/24)
1121    o testreport:
1122     - add option -deloutp (-do) to remove output file after successful run
1123     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
1124       extract exact list of procs from this file ; adjust COMMAND by
1125       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
1126    o pkg/ecco: replace old ineffective way of penalizing deviations from
1127      first guess (of obcs) with code by Matt Mazloff
1128    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
1129      exf/cal
1130      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
1131        and handle case of obcs?period == 0
1132        Not affected by these changes: There is still an inconsistency in
1133        the computation of start/endrec for the obcs variables for ALLOW_CAL
1134        defined (see comment by Menemenlis, 7-Mar-2003)
1135      - make S/R ctrl_get_gen_rec return something meaningful even if
1136        ALLOW_CAL is not defined
1137      - ctrl_getobcs?: simplify code so that it does not need to use
1138                       S/R exf_swapfields
1139    o testreport:
1140       allow to test MPI with different number of processors for each experiment:
1141       create file "SIZE.h.mpi" in each build dir.
1142       Note: update of "-command" argument not yet implemented.
1143    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
1144      alleviate the need for additional 3D tapes when using
1145      the non-inear free surface in the adjoint. This is done
1146      by adding an 'update' of hfacc etc. to their current
1147      value at the beginning of forward_step.F.
1148    o pkg/seaice
1149      seaice_lsr: move stress-divergence computations out of outer pseudo-
1150      timestepping loop
1151    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
1152      up, so that the calls of the ctrl_* subroutines are really at the end
1153      of the routine.
1154    o pkg/gmredi:
1155      allow to specify a 2-D horizontal map and a 1-D vertical profil
1156      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
1157    o pkg/seaice:
1158      move lsr iterations from seaice_dynsolver to seaice_lsr.
1159    o pkg/seaice:
1160      reduce memory footprint of seaice mutldim advection tapes,
1161      by using a 2D tape independent of the generic_advdiff ones,
1162      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
1163    
1164    checkpoint62q (2010/12/29)
1165    o model/src:
1166      - check horizontal grid-spacing for unset or zero/negative values.
1167      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
1168    o pkg/flt:
1169      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
1170      - precision of input and output files set according to readBinaryPrec
1171        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
1172      - initial float position from tiled file was not converted to index space
1173        (looks like a bug): fixed to make it similar to initial pos. global file.
1174    o global_ocean.cs32x15:
1175       change SIZE.h of AD set-up to get same tiling as with MPI.
1176       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
1177    o model/src:
1178       add flag to control printing of domain fields (bathymetry, hFac ...) in
1179       ini_mask_etc (call to plot_fieds_xy*).
1180    o pkg/thsice:
1181       if useEXF, some forcing fields are not valid in overlap: fixed by computing
1182       over the interior only + apply EXCH at the end (like with SEAICE advection).
1183    o pkg/mdsio:
1184      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
1185        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
1186      - change barrier call for safe multi-threads access to 3-D shared buffer.
1187      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
1188      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
1189        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
1190    o pkg/flt:
1191      - add fourth-order Runge-Kutta integration
1192      - add basic exch2 support (only 1 facet supported so far!)
1193    o pkg/mdsio+rw:
1194      new S/R to read local (or tile independent) vector (read counterpart of
1195       mds_writevec_loc, and front-end write_glvec_rl/rs).
1196    o global_ocean.cs32x15: additional input_ad.seaice experiment
1197        that uses pkg/seaice rather than pkg/thsice.
1198        (using multidim advection for seaice)
1199    o towards more F95 syntax for array specification in namelist:
1200      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
1201        of all verification experiments.
1202           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
1203          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
1204      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
1205    o global_ocean.cs32x15: additional input.seaice experiment
1206        that uses pkg/seaice rather than pkg/thsice.
1207    
1208    checkpoint62p (2010/12/17)
1209    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
1210        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
1211    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
1212        allow for use of multim. advection in seaice adjoint.
1213    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
1214      - first attempt to close budgets by taking into account the freshwater
1215        flux implied by the sublimation of snow and ice. So far only the
1216        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
1217        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
1218    o eesupp/src:
1219      new S/R with new option (NML_EXTENDED_F77) to change array specification
1220      from F95 standard to commonly accepted extended F77 form.
1221      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
1222      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
1223      for less tolerant f77 compiler (e.g., pgf77, g77).
1224    o globalFiles:
1225      commented out in parameter file "data" since it's not safe with MPI
1226      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
1227      in this case); no longer commented out in restart test (tst_2+2).
1228    o add adTapeDir to specify a special directory where adjoint tapes are
1229      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
1230      and cannot be used together with mdsioLocalDir.
1231    o nesting pkgs:
1232      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
1233      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
1234      - add parameter files + utils dir + output from short run on beagle.
1235    o pkg/seaice:
1236        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
1237    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
1238      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
1239    
1240    checkpoint62o (2010/11/25)
1241    o pkg/exf:
1242      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
1243    o pkg/seaice:
1244      - seaice_ocean_stress: split a loop for better vectorization of the
1245        adjoint code
1246      - seaice_growth.F: fix bug in conservation of freshwater connected to
1247        capping of heff, put contribution into d_HEFFbyNEG
1248      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
1249        by something more sensible (parameters that are what their name implies)
1250      - change some defaults, so that by default exf-parameters are used for
1251        things like rhoAir, cpAir,latent/sensible heat parameters, in order
1252        to reproduce the old results, many data.seaice now contain funny values
1253        for cpAir and latent heat of sublimation
1254    o packages_readparms.F: move exf_readparms up in line so that
1255        exf-parameters are visible for other packages (e.g. seaice)
1256    o debugMode & debugLevel=2:
1257      - differentiate between debugMode & debugLevel=2:
1258        debugMode: controls printing of debug messages (sequence of S/R calls).
1259        debugLevel: controls printing of algorithm intermediate results and stats.
1260      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
1261        => allows to print debug-stats without all sequence of call messages.
1262      - switch control of debug print from debugLevel to debugMode in many S/R.
1263    o pkg/obcs (obcs-sponge):
1264        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
1265        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
1266    o pkg/generic_advdiff:
1267      - record overlap minimum size for each advection scheme;
1268      - refine criteria on overlap minimum size;
1269      - check and stop (in gad_check) if overlap size is too small.
1270    o pkg/obcs:
1271      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
1272        once, in ptracers_implicit.F)
1273      - with seaice: remove test on empty file name in obcs_apply_seaice (always
1274        apply OB values when tile has OB)
1275    o model/src, coriolis setting:
1276      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
1277        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
1278        files (selectCoriMap=3) with any grid.
1279      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
1280    o pkg/seaice/seaice_growth.F:
1281        a few cosmetic changes that reduce the number of lines of code
1282    o pkg/obcs: add boundary conditions following Stevens (1990)
1283      - the code follows old MOM/NAOSIM code
1284      - so far it is only implemented for the eastern and western boundaries
1285        and NOT for pTracers
1286    o pkg/rbcs:
1287      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
1288        beginning of the first rbcs forcing period.
1289      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
1290        offline package, i.e., one file per time, labeled by iteration number;
1291        deltaTrbcs sets the timestep with which the data was generated;
1292        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
1293      - rbcsForcingCycle=0 makes forcing non-cyclic.
1294      - make arithmetic safe for negative times and odd forcing periods.
1295    
1296    checkpoint62n (2010/11/09)
1297    o pkg/seaice:
1298        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
1299    o pkg/obcs:
1300       New S/R to copy tracer value from the OB location to narrow band region
1301        (width = same as overlap) beyond the OB: preserve OB value (needed for
1302        high-order scheme) which were overwritten by EXCH call if in overlap
1303        region. Applied to theta, salt, ptracer and advected seaice variables.
1304       With seaice: use maskInC in similar way as in gad_advection.F,
1305        in seaice_advection.F and advect.F.
1306       Update output of experiment seaice_obcs and change exp4 to test OBCS with
1307        4th order Adv.Scheme. for pasive salt and ptracer.
1308    o tools/genmake2:
1309      - when looking for an optfile (not specified), only search for Fortran compiler
1310        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
1311      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
1312        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
1313      - set default for CPP to "cpp -traditional -P" (was the case without specifying
1314        an optfile, but otherwise default was just "cpp".
1315      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
1316      - when "CC" is not set in the optfile, look for possible C compiler
1317        (instead of just setting CC=cc)
1318      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
1319        => add a ".F" to ".o" rule for source files with no "#include" (such as
1320           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
1321      - move gfortran before g77 in list of possible Fortran compiler (consistent
1322        with reference compiler switch from g77 to gfortran)
1323    o pkg/seaice:
1324      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
1325        seaice_check that stops the model, when the CPP flag is used.
1326      o seaice_growth.F: make capping of ice volume conserving by returning the
1327        capped ice as freshwater to EmPmR. This does not change the verification
1328        experiments but will change runs where the capping is acutally active
1329    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
1330      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
1331         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
1332         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
1333    o tools/genmake2:
1334      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
1335      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
1336      - clean previous genmake log files before anything else.
1337      - change Makefile to remove testreport log files (*.tr_log) and genmake log
1338        files only with "CLEAN" target (instead of "Clean");
1339    o pkg/generic_advdiff:
1340      Change OBCS in multiDim advection (gad_advection.F):
1341       Use maskInC to prevent intermediate update of tracer-field in OB regions,
1342       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
1343       which were applying future time-step OB values.
1344      This way, all explicit calculations use current-time-step OB values
1345       (simpler and more consistent).
1346      Affects results when set-up uses time-varying OBC and multi-dim advection;
1347       update output of experiment seaice_obcs.
1348    o pkg/seaice:
1349      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
1350       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
1351         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
1352      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
1353       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
1354       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
1355    o pkg aim (2010/10/26):
1356      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
1357        formulation with obliquity, eccentricity, ... as run-time parameters,
1358      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
1359        upward shortwave radition at the surface (all-sky and clear-sky).
1360    o pkg/obcs:
1361      - writing sections with globalFiles=T does not work: switch to tiled-files
1362        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
1363      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
1364      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
1365    
1366    checkpoint62m (2010/10/21)
1367    o pkg/seaice: vectorize seaice_solve4temp.F
1368      - move iterations loops outside of i/j-loops
1369      - requires 2D arrays for TB and effConduct
1370      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
1371        modified in this routine
1372      - a little bit of clean up, adjusting indentation, etc.
1373      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
1374        performance and '**TWO' by '**2' (because TWO is a float),
1375        replaced ONE, ZERO
1376    o eesupp/src:
1377       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
1378    o pkg/seaice/seaice_growth.F
1379      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
1380      merging process. The merged routine has two branches, and one activates the 'evolution'
1381      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
1382      In summary, here is what the '10/10 revision' did consist of
1383        part 1: seaice_growth.F revisions 1.71 to 1.75
1384          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
1385            The emphasis here was on improving readability (e.g. by trying to use meaningful
1386            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
1387        part 1.5:
1388          - revising the lab_sea experiment to make it a more useful (i.e. stable
1389            and representative of an actual model run). This was done by generating a
1390            (winter) pickup to start from, switching back the main experiment dynamic
1391            solver from evp to lsr, having one of the experiments use the free drift solution.
1392        part 2: seaice_growth.F revisions 1.76 to 1.85
1393          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
1394          - Sorting out the various fields units and sign (set early on and reset at the end)
1395            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
1396            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
1397          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
1398            and simplifying logical expressions to further improve readibility.
1399        part 3: seaice_growth.F revisions 1.86 to 1.89
1400          - Re-organize the blocks of code more logically.
1401          - Merging the '_if.F' pieces that add something new.
1402    o pkg/thsice:
1403      - vectorize thsice_solve4temp and thsice_get_exf.
1404        Problem: thsice_solve4temp has an unvectorizable statement that
1405        might also be problematic for TAF
1406      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
1407        does not change the verifcation experiment, but will change all
1408        experiments that have this flag undefined (not tested in verification);
1409        a little reorganization to save a few 2D fields and recomputations
1410      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
1411      - 2nd step:  fix some store dirs
1412        o seems to work somewhat, i.e. using ifort but not g77
1413        o likely cause are incomplete init. or recomputation
1414        o start verification/global_ocean.cs32x15/input_ad.thsice
1415    o pkg/obcs: add support for exch2
1416      - the position of the boundary and prescribed values are specified using
1417        a global domain with exch2 facets stacked
1418        - in x for N,S boundaries (like W2_mapIO=-1)
1419        - in y for E,W boundaries (so E,W boundaries do not overlap)
1420    o pkg/mdsio: add support for writing global sections with exch2
1421        file layout is as for obcs described above:
1422        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
1423        - for y-z sections, facets are stacked in y
1424    o pkg/thsice:
1425       - change a few routines for better vectorization: thsice_albedo.F,
1426         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
1427         not affected, but in particular the latter routine has changed
1428         dramatically (not necessarily easier to read now).
1429       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
1430       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
1431    o verification/lab_sea:
1432      - overhaul of the forward model experiments. The main motivation
1433        for this revision is that lab_sea has proven quite fragile (when
1434        changing the sea-ice code, and switching platforms) to a point
1435        when failures were very hard to attribute to specific code problems.
1436      - the suspected reason for this fragility is noise amplification by evp so,
1437        to start with, we decided to replace evp with lsr in the main experiment.
1438      - the input.lsr experiment thus became obsolete and was removed.
1439      - it was replaced with the input.fd experiment that uses an
1440        analytical "free drift" solution as the ice velocity field.
1441      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
1442        will hopefully allow us to discriminate problems due to dynamic solvers
1443        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
1444        us to test additional options, along with the salt plume package.
1445      - Finally a pickup was generated (at the end of a one year run) to
1446        make the tests more representative of an actual model run. Previously
1447        the tests starting point was a 1m thickness of ice everywhere.
1448    o pkg/seaice:
1449      - introducing S\R seaice_freedrift.F that compute the
1450        analytical solution to an approximate ice momentum
1451        equation (i.e. the simple stress/coriolis balance).
1452      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
1453        of the free drift velocity field, and enable its use.
1454        To actually use the free drift solution as the model ice
1455        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
1456    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
1457    
1458    checkpoint62l (2010/10/04)
1459    o pkg/seaice:
1460      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
1461      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
1462       version (with USE_ORIGINAL_SBI undef);
1463    o add hooks for new packages OASIS, the package will follow
1464      (hooks exclude the seaice pkg for now)
1465    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
1466      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
1467      rather than mdsio_readvector.F/mdsio_writevector.F, within
1468      adread_adwrite.F to read/write adjoint-related tapes to disk.
1469    o eesupp and pkg/mdsio: ALLOW_WHIO
1470      Option to write/read 2D fields to files including tiles halos.
1471      The main purpose is for adjoint related "tape I/O".
1472      The secondary purpose is for debugging phases.
1473      A word on those rather specifically intended purposes.
1474      The code was meant to be stripped down to the bare minimum.
1475      Typically, there is a unique and basic mapping to the global
1476      buffer (tile by tile, then proc by proc, then level by level), and
1477      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
1478      meant to generate user friendly outputs of various shapes and forms.
1479      Rather it is intended, for the knowledgeabale developers,
1480      to be largely independent of the many mdsio options, to allow
1481      outputs of tiles+halos in debugging phases and in adjoint runs,
1482      and to allow some flexibility in tuning (adoint) I/O depending on each
1483      file system behavior. With regard to tuning, most of the potential knobs
1484      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
1485      to specify directories, to specify the typical size of I/O calls, etc.)
1486      are not yet included, and will be added if they prove useful.
1487    o pkg/seaice:
1488       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
1489    o pkg/seaice:
1490       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
1491       code (seaice_budget_ice_if.F) which enable to recover old standard
1492       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
1493       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
1494    o model/src (rStar):
1495       use simple average (not area weighted) of rStarFac at U,V point when using
1496       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
1497       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
1498    
1499    checkpoint62k (2010/09/17)
1500    o adjoint
1501       * changed verification/global_ocean.cs32x15 ; adjoint now tests
1502         Adams-Bashforth 3 + NLFS + RSTAR
1503       * some more modifs required for ECCO-GODAE v4
1504    o pkg/seaice
1505       add SEAICE_AGE_VOL option to use volume instead of area for
1506       integrating SEAICE_AGE
1507    o model/src:
1508       first check-in of sigma & hybrid-sigma coordinate code ; also includes
1509       non-linear free-surface parts ; but pressure-gradient not yet coded.
1510    o pkg/ptracers:
1511       option for ptracer to convert Salt Relax into additional EmP.
1512        tested in exp. global_ocean.90x40x15.dwnslp (update output)
1513    
1514    checkpoint62j (2010/08/25)
1515    o pkg/ggl90:
1516       other minor changes: remove 3-D temp array gTKE (+ add argument myIter)
1517    o pkg/dic: car_flux.F, phos_flux.F
1518      - reduce number of exp-calls in order to improve performance
1519      - clean up a little (replace fields by their macros, etc., fix
1520        typo in CPP-flag)
1521    o pkg/ggl90: minor changes
1522      - GGL90diffKrS was removed --> always use GGL90diffKr
1523      - GGL90viscAr was removed --> replaced with GGL90viscArU, GGL90viscArV
1524      - hack of mxlMaxFlag=2 --> ensure mixing between first and second level
1525        (commented out for now)
1526      - change in max/min operations to ensure that smoothing is ok
1527      - smoothing of GGL90viscAr was moved to ggl90_calc.F (as done for GGL90diffKr)
1528      - always use diffKrNrT as background profile (i.e. never use diffKr field)
1529    o pkg/cfc: bug fix, AREA(i,j,1,bi,bj) -> AREA(i,j,bi,bj)
1530    o pkg/dic:
1531      - model/src/impldiff.F: if TARGET_NEC_SX, extend loop ranges for better
1532        vectorization
1533      - small bug fix in insol for the unlikely case of a cartesian grid
1534      - towards vectorizing the dic package: bio_export.F, car_flux.F, phos_flux.F
1535        + now vectorize, which also removes adjoint recomputations;
1536        + replace integer maksp1 by _RL maskp1
1537        + replace a**x by exp(x*log(a)) in phos_flux.F for speed
1538    
1539    checkpoint62i (2010/07/21)
1540    o pkg/flt:
1541      - with OBCS: stop floats which enter the OB region
1542    o model/src:
1543      - use tempVertAdvScheme & saltVertAdvScheme (instead of horizontal ones)
1544        for implicit vertical advection.
1545    o pkg/seaice:
1546     - account for melting in seaice age evolution.
1547     - remove double counting of seaice ridging effect on seaice age.
1548    
1549    checkpoint62h (2010/06/18)
1550    o pkg/exch2:
1551     - remove exch2_*xy_rx files: call was replaced with exch2_*3d_rx(myNz=1).
1552    o tools/genmake2
1553      - remove "-pdefault" option: redundant with the use of "packages.conf";
1554      - remove file pkg/pkg_default : set the default as a pkg group
1555        ("default_pkg_list") defined in pkg/pkg_groups;
1556      - fix for case pkg/pkg_depend is missing (was hanging before);
1557      - add option "-pgroups" to specify a different pkg_groups than the default.
1558    o verification/adjustment.cs-32x32x1:
1559       add a "minimal" set-up test (code_min & input_min) which only compiles
1560       eesupp/src and the 2 pkgs (exch2 & debug) which don't need model/src & inc.
1561    o tools/genmake2
1562      - extend pkg_depend rules to model & eesupp (e.g., if model depend on [pkg]))
1563      - fix details of checking for mnc & profile pkg when NetCDF is unavailable.
1564    o pkg/exf: merge exf_bulk_largeyeager04 into exf_bulkformulae because these
1565      files are nearly the same anyway.
1566      Step 1: make exf_bulkformulae look like exf_bulk_largeyeager04:
1567       - redefinition of tau(i,i) (by a factor of ustar)
1568       - 1./exf(Const/T) -> exf(-Const/T) (big change in the results)
1569       - replace rhonil by rhoConstFresh in computation of evap (bug fix)
1570       - replace u/vstress=tau*rd*ws*cw by tau*rd*u/vwind (changes results)
1571       - replace
1572         rd(i,j)= rdn(i,j)/(exf_one - rdn(i,j)/karman*psimh )
1573         shn    = sh(i,j,bi,bj)*rd(i,j)/rdn(i,j)
1574         by
1575         shn    = sh(i,j,bi,bj)/(exf_one - rdn(i,j)/karman*psimh )
1576         (changes results)
1577       -> exf_bulkformulae v1.22,
1578          update verification experiments lab_sea, offline_exf_seaice, seaice_obcs
1579          (lab_sea: output.hb87.txt 1.11, output.lsr.txt 1.25, output.salt_plume.txt 1.13,
1580                    output.txt 1.63
1581           offline_exf_seaice: output.seaicetd.txt 1.7
1582           seaice_obcs: output.txt 1.10)
1583      Step 2: do the actual merge and remove exf_bulk_largeyeager04.F
1584       -> exf_bulkformulae v1.23,
1585          unfortunately requires updating lab_sea.salt_plume (6 matching digits),
1586          and global_ocean.cs32x15.icedyn (only 11 matching digits)
1587      Also update output_adm of exp. lab_sea (all 4) and offline_exf_seaice.
1588    o adjoint of exch-1:
1589     - pass high-level EXCH S/R through TAF (eesupp/src/exch_ad_diff.list)
1590       (note: was already like this when using EXCH-2) and remove flow dir
1591       and hand-written AD version of high-level EXCH S/R (pkg/autodiff);
1592     - provide flow-dir for low-level exch1 S/R (eesupp/src/exch1_ad.flow);
1593     - update pkg/exch2 diff list.
1594    
1595    checkpoint62g (2010/05/19)
1596    o eesupp/src (exch-1):
1597     - split exch_rx.F into Forward S/R (exch1_rx.F) and Adjoint S/R (exch1_rx_ad.F)
1598       and remove argument "simulationMode"; same thing for all exch_*rx_cube.F
1599       (renamed to exch1_*rx_cube.F).
1600     - change accordingly exch_*_rx.template and AD version in pkg/autodiff
1601       to call new exch1 S/R ; update Makefile and .cvsignore.
1602     - replace call to exch2_xy_rx S/R with exch2_*3d_rx(myNz=1) (will remove
1603       exch2_xy_rx later)
1604      Note: after updating your code, need to run "make clean" in eesupp/src
1605    o test experiment bottom_ctrl_5x5:
1606       new output_adm.txt with fewer grdchk & less monitor output.
1607    o model/src:
1608      remove the call to ini_cori in initialise_varia.F (just keep the usual one
1609       in initialise_fixed.F). More consistent with coriolis & horizontal grid
1610       beeing treated in the same way (ini_grid is not called a 2nd time).
1611    o pkg/exf:
1612      - rewrite exf_bulk_largeyeager04.F for better vectorization, changes
1613      global_ocean.cs32x15/input.icedyn (11 digits of agreement), updated
1614      - fix adjoint (used worked for ALLOW_ATM_WIND defined, works for this now)
1615      - cosmetic changes to exf_bulkformulae.F to make it look more like
1616        exf_bulk_largeyeager04.F
1617    o eesupp/src (exch-1):
1618      - Fix AD EXCH code for 2-D domain special cases (Nx=1 or Ny=1).
1619      - Separate buffer filling and MPI sending: allow EXCH-1 to work for local
1620        array (non-shared) when using MPI+MTH. Also reduces number of BARRIER
1621        (even without using MPI).
1622      - Message mode: move RecvAck setting (indicator of buffer being ready)
1623        from send_put to recv_get S/R (was useless before, but not sure if
1624        it's much more useful now);
1625      - Switch the order of sync: MPI-proc 1rst and then threads;
1626      - take out spin-waiting code (#undef EXCH_USE_SPINNING), use BARRIER instead.
1627      - fix AD code for communication mode ='get' (but not used).
1628    o model/src:
1629      initialise dPhiHydX,dPhiHydY inside calc_grad_phi_hyd.F (so that TAF does
1630      not drop it in S/R mddynamics, producing NaN in hs94.1x64x5 AD-test exp).
1631    o utils/matlab/rdmnc.m: adapt to be able to use the generic matlab netcdf API
1632    o pkg/ctrl: require a specific set of control variables and exf-flags for
1633      adjoint of seaice (stop in ctrl_check.F if conditions are not satisfied)
1634    o model/src:
1635     a) 1rst version of a new driver S/R to turn-off output freq and flags after the
1636       1rst forward sweep, to avoid over-writing output files during recomputations
1637       recomputations (& grdchk); called from cost_final.F (& ctrl_init_ctrlvar.F ?)
1638     b) 2nd version:
1639      - add specific pkg S/R for seaice & ptracers (called from S/R TURNOFF_MODEL_IO);
1640      - switch-off more output flags (exf_monFreq, chkPtFreq, dumpInitAndLast,
1641         writePickupAtEnd) + seaice & ptracers output;
1642      - do not switch off MNC flags (otherwise, won't get admonitor netcdf file)
1643    o model/src:
1644      - new S/R rotate_uv2en_rl (..._rs) that rotates vector fields.
1645    o pkg/exch2:
1646      - remove "simulationMode" from arg. list of S/R EXCH2_RX1,2_CUBE ;
1647      - add argument "signOption" to EXCH2_RX1_CUBE (will be needed for SM exch).
1648    o pkg/autodiff & exch2:
1649      process exch_uv_agrid_3d_rx.f & exch2_uv_agrid_3d_rx.f through TAF
1650      (for now, only if ALLOW_EXCH2 is defined).
1651    o pkg/autodiff:
1652      - include PACKAGES_CONFIG.h in exch*ad.flow & exch*ad.F
1653        (not supposed to be in CPP_OPTIONS.h) to get ALLOW_EXCH2 defined correctly.
1654       + clean-up comments (_RS is not always real*4)
1655      - fix bug in ADEXCH_UV_3D_RX (without EXCH2, was calling the forward exch S/R)
1656      - add a stop in ADEXCH_UV_AGRID_3D_RX if trying to use it with EXCH2:
1657        was calling a forward exch2, which is wrong ; used in SEAICE & EXF pkgs.
1658    o testreport (AD-tests):
1659      no longer link files from dir "../input" (1rst link files from
1660      "../input_ad.[xx]" if secondary test "xx" and then from "../input_ad")
1661    
1662    checkpoint62f (2010/04/29)
1663    o model/src/the_main_loop.F:
1664      adjust store directives for seaice evp and multicategory according to
1665      pkg/ecco/the_main_loop.F
1666    o adjoint:
1667      global_sum_ad was incomplete (noted many times by many people ;)
1668      nice description by Jean U. as follows:
1669      * allreduce(var) in global_sum.F can be interpreted as
1670        reduce(sum) followed by broadcast of sum.
1671      * The adjoint of that is
1672        sum(adjoint) followed by broadcast(summed adjoint value)
1673        or in other words, allreduce(sum, adjoint vars)
1674      We were missing the sum(adjoint)!
1675      Benign, except(!) for "global" scalars appearing in tile loops (bi,bj)
1676      (noted by J.M. Campin, e.g., in cost_ssh_mean, variable offset).
1677      The fix should produce 16-digit accuracy between
1678      single-CPU multi-tile (e.g. nSx=2, nPx=1) and
1679      multi-CPU single-tile (e.g. nSx=1, nPx-2)
1680      We'll probably change this yet again shortly
1681    o eesupp/src:
1682      - fix global_sum_r4 (wrong from previous modif in Jun 2009; ever used ?)
1683    o pkg/icefront
1684      - ALLOW_SUBGLACIAL_RUNOFF option adds capability for time-evolving
1685        specification of addmass array based on a 2D field, which is added
1686        at bottommost wet level at each horizontal location.
1687    o model/src:
1688     horizontal grid initialisation (other than curvilinear): add code for Exch2 IO
1689     layout; (not always compatible with delX,delY setting; commented out for now).
1690    o pkg/exch2:
1691     change tile to processor setting (case nSy*nPy > 1): allows default model mapping
1692     (myX and myYGlobalLow) to be used for simple (1 facet, no blank tile) config.
1693    
1694    checkpoint62e (2010/04/15)
1695    o pkg/obcs:
1696      - fix wrong index in OBCS_SPONGE_V for Eastern-OB (reported by David Hebert).
1697    o pkg/dic:
1698      -fix bug in fe_chem.F for multi-tile (nSx*nSy > 1) set-up;
1699        (note: not presently tested in any forward verification exp.)
1700       update tutorial_global_oce_biogeo AD output file.
1701    o pkg/exf:
1702      - account for the variation of albedo as a function of zenith angle
1703        by defining ALLOW_ZENITHANGLE in EXF_OPTIONS.h
1704    o build_options:
1705     - rename "linux_ia64_ifort+mpi_ice_nas" to "linux_amd64_ifort+mpi_ice_nas"
1706    o pkg/dic:
1707      change DIC atmos-CO2 box (method 3, dic_int1=3) initialisation & restart:
1708      - use binary pickup file for restart;
1709      - initialise atmos-CO2 box from dic_pCO2 parameter;
1710      - fix multi-threaded.
1711    o pkg/rbcs:
1712     - clean-up RBCS code: add RBCS_OPTIONS.h file ; fix multi-threaded ;
1713       change (+ fix IO calls) type of array RBC_mask from _RL to _RS.
1714     - add RBCS to exp4 passive tracer 01 (rbcs was previously untested)
1715       and update output.txt
1716    o pkg/kpp:
1717     - add diagnostics for KPP non-local flux of Temp, Salinity and pTracers;
1718     - change diagnostic of KPP non-local term: output average of KPPghat*KPPdiffKzS
1719       (= ratio of KPP non-local (salt) flux relative to surface-flux) when
1720       using pkg/timeave & pkg/diagnostics (diag 'KPPghatK' replaces 'KPPghat ');
1721     - change pkg/offline to read-in average KPPghat*KPPdiffKzS from file
1722       KPP_ghatKFile (instead of the average of KPPghat from file KPP_ghatFile).
1723    o pkg/offline:
1724      fix bug in S/R OFFLINE_FIELDS_LOAD regarding surfaceForcing conversion factor
1725      (bug was added in version 1.10 on 2007-08-23).
1726    o pkg/offline:
1727      - no need to specify periodicExternalForcing, etc ... to use offline pack
1728      - offline input files no longer just single prec --> parameter offlineLoadPrec
1729    o verification/lab_sea:
1730      change AD test to multi-tile setup and update all 4 AD output.
1731      NOTE: while cost function values remain very similar,
1732      gradients are very different, although gradient checks are self-consistent
1733      Should try to get to the bottom of this (cost function summation order?)
1734    o pkg/dic:
1735      in carbon_chem.F, replace log10 (AUTODIFF) with explicit form to avoid
1736      a weakness of TAF that drops part of double precision in log10 derivative.
1737      <= changes removed since problem has been fixed in current TAF version 1.9.71
1738      update AD output of exp. tutorial_dic_adjoffline & tutorial_global_oce_biogeo.
1739    o pkg/ecco:
1740      add missing "_d 0" in cost_readers.F, cost_readtopex.F & cost_readtopexmean.F
1741      update all 4 lab_sea AD output.
1742    
1743    checkpoint62d (2010/03/22)
1744    o build_options:
1745      remove '-r8' (and '-i4') from linux_*pgf and linux_*ifort optfiles.
1746    o remove unbalanced quote (single or double) in commented line of source code
1747      (may cause some warning with some preprocessor/makedepend versions).
1748    o pkg/seaice:
1749      fix seaice_model.F for adjoint (gael) and update AD results of experiments
1750       lab_sea (std + evp + noseaicedyn) and offline_exf_seaice.
1751    o testreport:
1752      add option '-runonly' (short: '-ro') to just do the run part (without make).
1753    o eesupp: remove JAM communication code (obsolete).
1754    o add option to genmake2 & testreport to switch "_RS" type to "real*4"
1755      (if allowed in CPP_EEOPTIONS.h); update default CPP_EEOPTIONS.h and return
1756      to default CPP_EEOPTIONS.h for exp. inverted_barometer & solid-body.cs-32x32x1
1757      (update also the output).
1758    
1759    checkpoint62c (2010/03/02)
1760    o tools/build_options :
1761       move (some) old optfiles from build_options/ to build_options/unsupported/
1762    o model/src and pkg/exf
1763       surface relaxation -- separating data and data.exf options
1764       The point is to ensure that we specify the surface relaxation
1765       either in data or in data.exf (but not half and half) and to
1766       avoid an accidental relaxation to 0 (which happened if a time
1767       scale was specified but the file name was left empty)
1768    o model/src model/inc and pkg/mom_common
1769       ALLOW_3D_VISCAH/ALLOW_3D_VISCA4 => 3D specification of Viscosity
1770       => addition to the viscosity field as computed by others schemes
1771    o tools/build_options:
1772      - rename "_generic_mpi" -> "+mpi_generic" (like other "+mpi" optfile)
1773        but keep the former optfile for few weeks for smooth transition
1774    o pkg/ecco
1775      - allow user defined cost function contributions
1776         CPP: ALLOW_USERCOST_CONTRIBUTION
1777         USAGE: compute contributions in cost_usercost_all.F
1778      - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
1779          the two options are complementary.
1780    o pkg/smooth
1781      - migration from contrib to the main repository
1782    
1783    checkpoint62b (2010/01/26)
1784    o pkg/monitor:
1785      - change back mon_printstats_rl.F & mon_stats_rl.F and add a stop
1786        (in case someone forgot to update customized pieces of code)
1787    o nonHydrostatic:
1788      - add Non-hydrostatic free-surface form (selectNHfreeSurf=1)(not fully tested);
1789      - add a simple 2-D experiment (short_surf_wave) to test it.
1790    o pkg/icefront:
1791       adding the shell of, and the hooks to, a new package that
1792       will model melting and freezing of vertical glacier ice fronts
1793    o momentum:
1794      add diagnostics of momentum tendency from Hydrostatic pressure gradient
1795       (without surf.pressure term: would need a 2nd filling since implicit term).
1796    o add 3 "_d 0"s so that fizhi compiles with xlf on iblade, and replace
1797      two " &end" by " &" (in fizhi-cs-*) because S/R NML_SET_TERMINATOR
1798      cannot deal with the former
1799    o cleaning:
1800      - remove all (except OpenAD) old TLM output from results_ad dirs.
1801      - remove unused S/R (MDSWRITEMETA, DIAGNOSTICS_ADD2LIST, old DFILE IO S/R)
1802      - comment out maskH definition (replaced by maskInC)
1803    o pkg/monitor:
1804      - change mon_printstats_rl.F & mon_stats_rl.F (were similar to mon_writestats_rl
1805        & mon_calc_stats_rl) to be the RL equivalent of mon_printstats_rs & mon_stats_rs.
1806    
1807    checkpoint62a (2010/01/15)
1808    o model/src:
1809      - bottom pressure diagnostic: correct for r* (when nonlinFreeSurf >= 4)
1810    o pkg/diagnostics:
1811      - add optional level number diagnostics (i.e., level number to be define
1812        explictly with S/R DIAGNOSTICS_SETKLEV) with parser-code(10)="X".
1813      - strictly check for valid parser-code(10) ;
1814      - check if adding diag to the list from the right place.
1815    o pkg/longstep:
1816      - change parameters and fix tracer conservation with rstar/nonlinear free surface
1817    o diagnostics:
1818     - in all pkgs, replace remaining calls to old S/R DIAGNOSTICS_ADD2LIST with newer
1819       S/R DIAGNOSTICS_ADDTOLIST ; fix seaice VICE diagnostics.
1820    o pkg/diagnostics:
1821     - Add option for writing vertical integral (sum of selected levels) of an output
1822        field instead of writing output field levels. Activate this option on a per
1823        output-file basis, by setting the 2nd character of fileflag to 'I'.
1824     - Add field-specific information relative to level integral in 3rd postion
1825        of parser diagnostics code (gdiag): " "=cumulate levels, "R"=integrate
1826        vertically (x level-thickness x hFac), "r"=same but without hFac.
1827    o do_the_model_io:
1828      - pass end-of-model-run flag as argument, from forward_step to diagnostics_write:
1829        in case useSIGREG, will write (averaged) diagnostics (if dumpAtLast) before
1830        writing pickups and stopping.
1831    o pkg/diagnostics (for now, only with mdsio):
1832      - write time information to meta file (and modify accordingly rdmds.m) :
1833        time-averaged diagnostics output: write starting and ending time of the
1834        time-averaging interval ; snap-shot diagnostics output remains unchanged;
1835    o pkg/timeave:
1836      - S/R TIMEAVE_NORMALIZ: change size of cumulated-time array (was previously
1837        always Nr), now assumed to be equal to number of levels of averaged field;
1838        only used for DIC_COST monthly mean arrays: this fixes dic_aver_final.F
1839    o pkg/sbo:
1840      - fix ocean bottom pressure global-average & 2-D time-ave output (was
1841        neither initialised nor filled).
1842      - add starting iteration in suffix of global-average output file
1843        (to avoid over-writing the file after a restart)
1844      - use standard MDSIO pkg S/R instead of SBO_WRITEVECTOR (fix byte-swap Pb).
1845    o time-average:
1846      - use simple cumulative-time array (no k index) in all pkgs: {PKG}_timeAve(bi,bj)
1847        (pkgs: aim_v23, bulk_force, dic, gmredi, kpp, land, ocn_compon_interf,
1848         ggl90, my82, opps, pp81, ptracers, sbo, seaice, shelfice, thsice)
1849        this fix DIC_COST cumulative-time array (previously: bi,bj,k)
1850      - fix 1rst call (nIter0) snap-shot output and accumulation (pkg/shelfice)
1851      - fix missing accumulation for pkg/opps.
1852      - cumulate fields only if doing time-ave output ({PKG}_taveFreq > 0)
1853         (pkgs: ptracers, kpp, ocn_compon_interf, ggl90, my82, pp81);
1854      - fix initialisation of time-ave vars and do only full time-step increment
1855        (i.e.: no first & last "half time-step") (pkgs: ggl90, my82, opps, pp81);
1856    o pkg/layers:
1857      - use standard RW pkg S/R to write the output
1858        and remove local write_fld version (which had a problem).
1859      - use simple cumulative-time array (no level index) to fix time-ave S/R calls.
1860      - fix LAYERS_CALC argument list.
1861    o pkg/timeave:
1862      - store cumulative-time in a simple tiled array (drop the level index)
1863      - add new S/R (TIMEAVE_NORMALIZE) which uses simple cumulative-time array.
1864    o pkg/ocn,aim_compon_interf
1865      - changes for multi-threaded coupled run. (tested with ifort-11 on danton)
1866    
1867    checkpoint62  (2009/12/23)
1868    o switch on useOBCSbalance in tutorial_plume_on_slope exp. and update output.
1869        (was not previously tested in any other exp.)
1870    o pkg/monitor:
1871      - clean-up _RL/_RS version: add specific S/R for statistics with mask & volume:
1872        mon_writestats_rl/s,F mon_calc_stats_rl/s.F ; will keep the old one
1873        (mon_printstats_rl/s,F mon_stats_rl/s.F) just for bare statistics.
1874      - use hFac & 2-D mask (instead of 3-D mask + hFac in previous mon_stats_rl.F).
1875      - change del2 calculation.
1876      - use interior masks (instead of maskH, <- to be remove).
1877      - shorter monitor suffix for forcing stats ("forcing" instead of "extforcing").
1878    o mask & obcs:
1879      - define 2-D "interior" masks (i.e., zero beyond OB) at 3 locations (C, W & S).
1880      - move global area computation from ini_masks_etc.F to ini_linear_phisurf.F
1881        (called after packages_init_fixed)
1882    o pkg/obcs:
1883      - move bi,bj loops into obcs_calc, so obcs_prescribe_read is called only once.
1884        Fixes bug in obcs+exf with nSx*nSy.GT.1
1885      - fix multi-tile handling in obcs balance code
1886    o nonHydrostatic:
1887      - Implement AB-3 for non-hydrostatic vertical momentum ;
1888        (change ordering of var. stored in pickup file when using NH)
1889      - move NH code from solve_for_pressure.F to 2 new S/R: PRE_CG3D & POST_CG3D.
1890      - add 2-D field to store Hydrostatic Surface Pressure adjusment from cg3d_x
1891        (in prep. for new NH free surface form).
1892  o pkg/obcs:  o pkg/obcs:
1893    add files & OB-variables for wVel (Non-Hydrostatic) with useOBCSprescribe    add files & OB-variables for wVel (Non-Hydrostatic) with useOBCSprescribe
1894  o model/src:  o model/src:
1895    fix 2-D solver initialisation for deep-atmosphere (p-coord) with topography    fix 2-D solver initialisation for deep-atmosphere (p-coord) with topography
1896    
1897  checkpoint61z (2009/12/01)  checkpoint61z (2009/12/01)

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