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revision 1.1295 by jmc, Sat Sep 11 21:39:13 2010 UTC revision 1.1579 by jmc, Sat Jan 21 19:41:43 2012 UTC
# Line 5  $Name$ Line 5  $Name$
5      ==============================      ==============================
6    
7  o model/src:  o model/src:
8      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
9      - change default celsius2K from 273.16 to 273.15
10      - to keep results unchanged, add back old value of celsius2K in verification
11        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd) &
12         global_ocean.cs32x15(seaice).
13    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
14      to make TAF generate vectorizable code
15    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
16       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
17       have flags that do this more efficiently.
18    o pkg/diagnostics/diagstats_calc.F
19      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
20    o pkg/obcs (with exch2):
21      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
22        and remove code (in obcs_readparms.F) which was based on EXCH of indices
23        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
24    o pkg/exf and seaice exp:
25      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
26        so that switching off area & heff advection flags does not affect results.
27      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
28      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
29        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
30        results of verification experiments: 1D_ocean_ice_column(fwd),
31        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
32        and offline_exf_seaice (all 4).
33    o pkg/seaice:
34      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
35        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
36      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
37        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
38        not multi-dim advection;
39      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
40        SHORTWAVE_HEATING #undef.
41    o optim: make Makefile more robust (?)
42    o pkg/obcs:
43      * fix treatment of obcs_read_pickup for TAF
44    o pkg/shelfice:
45      * add missing initialisation of num_shifwflx
46      * new adjoint verification exp. for isomip
47      * change Prandtl and Schmidt numbers from generic formulations
48        (in terms of model diffus. and visc.) to separate runtime
49        parameters, with Holland and Jenkins (1999) default values.
50    o pkg/exf (interpolation):
51      - extended input field (2 rows) near the N & S poles:
52        * fill in with the symetric value (when even Nb of data in longitude)
53        * add average value at the poles only for scalar quantities ; for vector
54          component interpolation, skip the averaging and keep duplicated values,
55          unless the 2 components have same location (uvInterp=T) in which case
56          interpolate the 2 components together using S/R EXF_INTERP_UV.
57      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
58        together: this allows to account properly for local orientation when
59        averaging at N & S pole.
60      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
61        exf-interpolation near N & S poles. Undef by default.
62      - add debug check/print on 1rst iter if debugLevel >=2.
63    o pkg/exf:
64      - change masking flags definition (no longer "parameter"), put them in
65        common block and set them in S/R EXF_INIT_FIXED.
66      - change recognized masking flag from s,u,v to c,w,s since the mask
67        to use (maskC,W,S) depends on position on model grid and has little to
68        do with scalar/vector difference; fix masking if using P-coordinates.
69      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
70        and update results of exp. global_with_exf (x2).
71      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
72    o pkg/obcs
73      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
74    o pkg/exf (interpolation):
75      - assume periodicity in X only if input field cover full longitude range.
76      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
77        and should vectorise).
78      - fix input lat of the 2 added row (in case we provide N.pole data).
79    
80    checkpoint63h (2011/12/30)
81    o pkg/seaice:
82      - change declaration of UVM from _RL to _RS in order to get B-grid
83        uIce,vIce monitor when _RS = real*4
84    o pkg/offline:
85      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
86      - compute vertical velocity if not read from file (switch on exactConserv
87        & staggerTimeStep);
88      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
89    o verification:
90      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
91        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
92        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
93      - update output of exp. global_ocean.cs32x15.viscA4 after changing
94        grid-file angles (used here for coriolis-3d);
95      - remove (or gzip) few files not needed to run fizhi-cs experiments.
96    o pkg/exf (vector interpolation):
97      - rotate vector component toward local grid-axis orientation using grid-angles
98        (stored in GRID.h) instead of locally computed rotation angle; keep old code
99        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
100    o pkg/seaice:
101      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
102        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
103    o pkg/PKG_OPTIONS.h files:
104      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
105        outside of the #ifdef ALLOW_THISPKG / #endif block.
106      - update verification/*/code/PKG_OPTIONS.h files.
107    o add a verification experiment (offline_exf_seaice/input.seaice) that test
108      the B-grid LSOR solver
109    o pkg/seaice: sort out emissivity and long wave radiation step 2:
110      - add emissivity for snow and ice as new run-time parameters
111        (unfortunately) that default to the corresponding exf values; this
112        changes results in most verification experiments so that for backward
113        compatibility these parameter have to be set explicitly to inconsistent
114        values (ugly);
115      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
116        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
117        until we agree how to handle this bug properly
118    o pkg/exf (interpolation):
119      - add a set of run-time param ({inputfield}_interpMethod), one for
120        each interpolated input field, to select the interpolation method
121        with a value of zero switching off the interpolation;
122      - print interpolation parameters to standard output;
123      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
124        (to use instead runoff_interpMethod=0 in data.exf).
125      - simplify default setting of interpolation parameters (for all fields,
126        set position to match model grid cell-center position, leading to trivial
127        interpolation in case of regular Lat-Lon grid) and fix for the case of
128        non-uniform delY.
129    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
130       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
131       this factor is absolutely required, because the lw exitance (= out-going
132       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
133       where the reflectivity rho = 1-emissivity for conservation reasons. Once
134       this is established, we can remove the CPP-Flag (if we want to).
135    o pkg/seaice:
136      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
137        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
138      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
139        what the name implies (and not emissivity*BoltzmannConstant), this means
140        the old default value of 5.5e-8 now means
141        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
142        S/R exf_readparms
143      - FV-discretization of the B-grid LSOR solver, turn on with
144        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
145        of the calling routine dynsolver, so that B and C-grid code look a
146        little more alike.
147      - fix index bugs in ostres.F (B-grid code)
148    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
149    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
150      default for SEAICE_emissivity, if useEXF; requires setting a wrong
151      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
152      backward compatiblity
153    o model/src: use sigmaR in calc_ivdc
154    
155    checkpoint63g (2011/12/16)
156    o pkg/seaice/seaice_growth.F:
157      fix heat conservation of the coupled ocean-seaice system.
158      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
159      solid vs liquid water treatment is resolved via QNET.
160    o pkg/seaice/seaice_growth.F:
161      add missing term for sublimation in saltFlux, which was breaking conservation.
162    o pkg/seaice/seaice_model.F:
163      Remove this patholigical case treatment in evolution branch,
164      where it is un-necessary and breaks conservation.
165      Update global_ocean.cs32x15/results accordingly for
166      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
167    o model/src:
168      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
169      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
170    o pkg/obcs:
171      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
172      tendency for temperature and salinity that is then applied to update
173      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
174      horizontal advection and diffusion contributions on the boundary (in
175      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
176      removing the mask in S/R timestep_tracer. The advantage of this approach is
177      that the updated tracer values include contributions from the surface
178      forcing and vertical diffusion.
179      This modification changes exp4.stevens because of vertical diffusion.
180    o model/src:
181      change non-curvilinear grid setting to also work with exch2 + blank tiles:
182      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
183        face dimensions.
184      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
185        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
186        and INI_SPHERICAL_POLAR_GRID.
187      change test-experiment global_ocean.90x40x15:
188      - split the domain in many more tiles (9x4 tiles of 10x10 each);
189      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
190      - update results of both test (std & dwnslp).
191    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
192       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
193    o model/src:
194      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
195        and fix initialisation when using sigma-coords.
196    o model/src:
197     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
198       to their current value at the beginning of forward_step.F": add a new run-time
199       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
200     - set doResetHFactors=T in the following test exp:
201        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
202        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
203        and tutorial_global_oce_in_p (nonLinFS in p)
204    o pkg/ecco
205      - added IES cost term
206    o verification/advect_xz
207      - scale down the depth by 1/100 (from 200 km to just 2.km)
208      - add secondary test using divergent flow, r-star and implicit vertical advection.
209      - add note (check_conserve_TS.txt) and matlab script to check global
210        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
211    o pkg/rbcs:
212      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
213    o pkg/obcs (Stevens BCs):
214      - fix various problems in the phase speed computations of the Stevens
215        boundary conditions:
216        - sign error for western and southern boundaries,
217        - time tendencies were underestimated by factor of dTracerLev and some just
218          zero (for multidim advection schemes) -> now estimate time tendencies
219          from difference between previous (n) time level and the one before (n-1);
220          this requires storing a field per tracer per boundary, also in the pickup
221          files.
222        - replace deltaTmom in cflMer/Zon computation with dTracerLev
223        - set default phase velocity to cflMer/Zon
224      - update verification experiment exp4.stevens
225    o pkg/generic_advdiff (implicit_r):
226      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
227        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
228      - fix implicit vertical diffusion or advection with NonLin FreeSurf
229        (was using current recip_hFacC instead of future recip_hFacC): set future
230        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
231        solver S/R ;
232      - fill diagnostics of vertical advective fluxes (computed from tendency)
233        when using implicit vert. advection;
234      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
235         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
236         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
237         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
238    o pkg/diagnostics:
239      - add diags for T & S tendency which goes through Adams-Bashforth.
240    
241    checkpoint63f (2011/11/30)
242    o pkg/obcs/obcs_calc_stevens.F:
243      - join some loops to reduce number of if-statements
244      - fix a bug in code for northern and southern boundaries.
245    o pkg/seaice/seaice_init_varia.F
246      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
247        caused zero ice-velocities for the B-grid code
248    o pkg/seaice/seaice_init_fixed.F
249      - fix a bug in the initialisation of the second metric terms
250        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
251      - this affects all seaice configurations with useCurviLinearGrid = .true.
252        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
253        = .true. (default)
254      - the only verification experiment affected is global_ocean.cs32x15:
255        icedyn, seaice, and seaice_dynmix (AD)
256    o pkg/thsice/thsice_diagnostics_state.F
257      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
258        not contain garbage that can lead to surprises in diagstats_calc.F
259    o model/src:
260      - move bi,bj loops inside INTEGR_CONTINUITY ;
261      - call INTEGR_CONTINUITY directly from forward_step.F
262        (previously called from momentum_correction_step.F)
263      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
264        forward_step.F and pkg/ecco/the_main_loop.F
265    o model/src/do_oceanic_phys.F:
266      - reset addMass to zero only if useICEFRONT ;
267      - separated k-loop for rhoInSitu calculation ;
268      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
269        and at constant T,S (= WdRHOdP);
270      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
271        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
272        transport of locally-referenced potential density);
273        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
274    o gluemnc:
275      - replace ncrcat with ncks when adding variables to *.glob.nc
276      - change the way variables without record dimensions are handled so that
277        files that have variables with and without record variables can be glued:
278        add a record dimension with a new unique name to be able to differentiate
279        between variable with and without a-prior record dimensions. Remove
280        this record dimension before adding the variable to the *.glob.nc file.
281        This procedure automatically works also for grid.*.nc files that do not
282        have any record dimension.
283    o verification/cpl_aim+ocn:
284      - generate new reference output on baudelaire (gfortran, mpich2) (previously
285        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
286    o pkg/obcs/obcs_calc_stevens.F:
287      - add code for northern and southern boundaries.
288      - reorder some loops to save some operations and so that drFBar can be scalar
289    o model/src:
290      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
291        truncation) and add diagnostics for Adams-Bashforth tendency increment.
292      - update test-exp. AD output:
293        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
294      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
295        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
296        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
297        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
298        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
299        tutorial_plume_on_slope.
300    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
301      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
302      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
303      does not even come with an F77 compiler anymore, this should not be
304      a limitation
305    
306    checkpoint63e (2011/11/06)
307    o pkg/seaice adjoint of LSR:
308      - substantially rework STORE dirs.
309      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
310        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
311        and only perform SOLV_MAX_FIXED adjoint iters.
312        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
313        always goes to same record, meaning that the last forward field will be
314        the one used in the adjoint - an approximation.
315      - now produces non-zero LSR-related gradients, and acceptable gradients for
316        An's zonal (x-z) test case (to be checked in)
317      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
318        (but these are screwed up by the thermodynamics in the first place);
319        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
320        output_adm.txt also reflects changes to seaice_lsr
321      - global_ocean.cs32x15:
322        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
323          (output_adm.seaice.txt was updated)
324        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
325          (output_adm.seaice_dynmix.txt)
326    o test-exp. exp4+stevens:
327      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
328    o pkg/seaice (lsr solver):
329      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
330        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
331      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
332      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
333        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
334      - compute (with new S/R) and print initial (+ free-driff sol. if available)
335        and final residual of linearised system.
336    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
337      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
338    o pkg/obcs: Stevens BCs (still only for east and west)
339      - fix Stevens BCs by using intermediate velocities of previous
340        time step as "baroclinic" contribution rather velocity of one grid cell
341        inside the boundaries; more consistent but makes the entire treatment
342        more complicated, requires new pickup files and two new S/Rs:
343        obcs_copy_uv_n and obcs_save_uv_n
344        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
345        (undefined by default)
346      - silently move computation of some grid factors into separate loops to
347        save some recomputations
348      - add a hack for non-linear free surface
349      - add a verification experiment to exp4 that tests this code
350    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
351    
352    checkpoint63d (2011/10/25)
353    o pkg/obcs + seaice-dynamics:
354      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
355        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
356        values (consistent with an implicit method).
357      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
358        return to older implementation (same results as before); note that none of
359        the "experimental" OBCS_SEAICE options are implemented in the new version.
360      - switch test exp. seaice_obcs to use new version (update output).
361    o pkg/seaice:
362      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
363      - add parenthesis in Water-Ice drag calculations (evp & lsr);
364      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
365        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
366      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
367        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
368    o pkg/layers:
369      - Include potential density as new coordinate (Thanks to David Munday)
370    o pkg/dic:
371      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
372        carbonate computation/output to CALC_PCO2_APPROX
373    o pkg/generic_advdiff
374      - make TAF generate code that vectorizes:
375        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
376    o model/src:
377      - improve vectorization also for adjoint code of
378        solve_tridiagonal and solve_pentadiagonal. As this requires up to
379        5 new 3D-fields, this code is only turned on for the combination of
380        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
381        for singular matrix check (only for TARGET_NEC_SX).
382      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
383        ALLOW_AUTODIFF. This flag now needs to be set outside of
384        solve_tri/pentadiagonal.F
385    o pkg/exf:
386      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
387        optional namelist EXF_NML_OBCS).
388      - add many debug-print (to trace down where pkg/cal error msg comes from)
389    o pkg/mom_vecinv/mom_vi_hdissip.F
390      - rearrange loops so that vectorization is improved and in particular
391        the adjoint routine vectorizes. The code is a little longer now, but I
392        think easier to read.
393        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
394    o pkg/seaice:
395      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
396    o pkg/exch2:
397      - alternative code (without tile x tile matrix) for cumulated (global) sum;
398        used as default; keep using matrix version in adjustment.cs-32x32x1.
399    o tools/build_options:
400      - after merging some MPI and/or multi-threads specific optfiles so that
401        the modified default optfile support both built (using genmake2 -mpi
402        for the MPI built, using genmake2 -omp for OpenMP built),
403        move now obsolete optfiles to tools/build_options/unsupported/
404       (add copy of email sent to support list in doc/optfiles_changes.txt)
405    
406    checkpoint63c (2011/09/28)
407    o pkg/ebm:
408      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
409        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
410    o pkg/seaice (SItracer pickup)
411    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
412      To be done:
413      - thorough testing of missing fields in S/R seaice_read_pickup
414      - thorough matching between generic tracers and specific fields used
415        (e.g. volume-weighted age, area-weighted age, salinity, ...)
416    o pkg/grdchk:
417      - all procs calculate and print finite-difference gradient (for testreport)
418      - change description output used by testreport;
419      - AD testing: also compare and report Finite-difference gradient;
420        => update all output_adm*.txt
421    o test exp. global_ocean_ebm:
422      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
423        and turn on exactConserve; update (fwd) output.
424    o pkg/seaice (LSR):
425      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
426      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
427        * identical results with non-CS topology (but save up to half of EXCH calls)
428        * no much changes in cs-32 verification tests since no ice at face edges
429         (differences due to convergence criteria, since nb of iterations changed)
430        * expect some differences on lat-lon-cap grid.
431        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
432    o pkg/exch2:
433      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
434        many tiles); until alternative coding is added, just add a stop.
435    o pkg/kpp:
436      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
437        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
438    o optfiles:
439      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
440        into corresponding standard one, which now support different build:
441        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
442      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
443    o pkg/obcs (seaice):
444      - add missing EXCH for uIce,vIce after applying OBCS;
445      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
446        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
447        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
448      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
449      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
450        and eedata.mth for MPI and mutlti-threaded testing.
451    o pkg/flt:
452      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
453      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
454      - fix pickup and trajectories + profiles output with multi-threads;
455      - add parameter to select group of fields to write along trajectory and
456        profile (default unchanged);
457      - only call PORT_RAND* function when flt_noise <> 0;
458      - add multi-threaded test for verification exp. flt_example.
459    o eesupp/src:
460      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
461      - USE_OMP_THREADING: check that number of threads (from eedata) matches
462        actual number (from env.var. setting).
463    o pkg/ebm:
464      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
465      - add multi-threaded test for verification exp. global_ocean_ebm
466    
467    checkpoint63b (2011/08/29)
468    o pkg/ebm:
469      - fix sign of runoff;
470      - update directly forcing fields (Qnet,EmPmR) to use standard
471        external_forcing_surf.F (remove ebm_forcing_surf.F);
472      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
473      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
474        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
475      - update global_ocean_ebm parameters file data and update output (fwd+ad).
476    o verification/matrix_example:
477      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
478        MPI and mutlti-threaded testing.
479    o pkg/matrix:
480      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
481      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
482      - fix for multi-threaded (remove DATA statement);
483      - use standard DIFFERENT_MULTIPLE function;
484      - add MATRIX_OPTIONS.h
485    o verification/matrix_example:
486       To allow to split the domain in several tiles, change the domain size
487        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
488        Western side) of land points.
489    o (*_)write_pickup:
490      - fix few bugs in mypackage_read/write_pickup.F
491      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
492        array of length 1 (was caught by compiler syntax-check).
493    o pkg/diagnostics (velocity potential solver):
494      - fix initialisation of main diagonal matrix (for overlap values)
495    o tools/build_options:
496      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
497        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
498      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
499        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
500        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
501        and use "-devel" testreport option for standard testing on baudelaire.
502    o pkg/grdchk:
503      - Assume that all gradient-check position are within the same tile
504        corresponding to global indices (iGloTile,jGloTile) and that
505        positions (i,j indices or nbeg) are local to this tile;
506      - set tile local-indices and proc. number according to tile global-indices;
507      - remove grdchkwhichproc from namelist (retired param);
508      - send adjoint gradient to all procs so that all procs print it to STDOUT;
509      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
510    o adding package bbl (Bottom Boundary Layer)
511      description in MITgcm/pkg/bbl/bbl_description.tex
512      example/test experiment in MITgcm_contrib/bbl
513    o adjoint verifications
514      - changed 5 experiments to multi-tiles
515        * global_ocean.90x40x15
516        * obcs_ctrl
517        * offline_exf_seaice
518        * tutorial_dic_adjoffline
519        * tutorial_tracer_adjsens
520        changed reference output for those that crossed tile boundaries
521        (changed choices of gradient check positions)
522      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
523      - temporary bug fix in grdchk_loc.F for obcs
524    o genmake2 & testreport
525      - add target "obj" (just for OBJFILES files) to Makefile;
526      - add option to specify FEXTRAFLAGS on command line.
527    o pkg/mypackage:
528      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
529    
530    checkpoint63a (2011/08/02)
531    o pkg/diagnostics (velocity potential):
532      - fix velocity-potential calculation when using OBCS: balance net inflow
533        at each level (new S/R OBCS_DIAG_BALANCE).
534      - fix some of the problems with OBCS in stream-function calculation.
535    o pkg/exf/exf_readparms.F
536      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
537        EXF_NML_OBCS) more consistent, so that you need not have these lists
538        in data.exf when they are not used.
539    o optim/optim_readdata.F:
540      - add some output about obcs variables that might help debugging
541      - add a check about nvarlength
542    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
543    o pkg/diagnostics (velocity potential):
544      - fix mask for OBCS (still problems in stream-function with OBCS);
545      - add specific parameter (default = main code CG2D params) for solver;
546      - in case of poor convergence, use solution corresponding to lowest residual.
547    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
548      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
549      and should be avoided where possible.
550    o model/src (rStar):
551      - include r* effect on reference-state (PhiRef) in totPhiHyd
552        (so that it's really the potential anomaly at the cell center);
553        affect solution only if z* with full pressure in EOS.
554      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
555        update output (because of z* in totPhiHyd and viscA4 changes);
556      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
557        @ constant r) until interpolation at constant r is implemented.
558    o pkg/diagnostics
559      - fix RCENTER diagnostics in case cell center is not at interface middle
560    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
561      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
562      that THETA and SALT are "conservative temperature" and "absolute
563      salinity"
564    o pkg/ctrl
565      - fix computation of endrec in s/r ctrl_init_rec
566      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
567    o pkg/seaice/seaice_growth.F
568      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
569        remove then obsolete STORE directives
570      - fix STORE directives for tice and tices, so that only the
571        appropriate part of the fields are stored (and not the entire
572        field); update global_ocean.cs32x15.seaice AD output.
573      - cosmetic changes: adjust CPP flags and indentation for better
574        legibilty
575    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
576      Chris Wilson)
577    o pkg/gmredi:
578       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
579       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
580    
581    checkpoint63  (2011/07/11)
582    o pkg/exch2:
583     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
584     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
585       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
586       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
587    o pkg/diagnostics:
588     - deal with pairs of post-processed diags which are computed together; in
589       particular, re-order list of diags within 1 file to save 2nd computation.
590     - add S/R to compute velocity stream-function (called after velocity-potential
591       calculation) from divergence free transport -> new diagnostics "PsiVEL".
592     - add parameter to select grid-point location where PsiVEL == 0.
593    o eesupp/src:
594       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
595       (specific S/R needed with exch2 topology - for now, just print an error msg)
596    o pkg/shelfice
597     - Implement friction velocity-dependent transfer coefficients following
598       Holland and Jenkins, JPO, 1999
599       Original code by M. Losch with small modifs.
600       Enable with CPP option SHI_ALLOW_GAMMAFRICT
601       and runtime flag SHELFICEuseGammaFrict
602    o verification lab_sea & global_ocean.cs32x15:
603     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
604       does not miss some dependencies (but is slower) and also works with many files
605       (default makedepend limitation for AD built).
606     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
607    o pkg/diagnostics:
608     - add run-time parameter "useMissingValue" (def=False) to fill land-point
609        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
610       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
611     - Extend the use of "missing_value" setting from data.diagnostics for the case
612       of counter-diagnostics (where fraction-weight is zero). This applies both to
613       MNC and MDS output files.
614    o pkg/seaice/seaice_growth.F:
615      - add 'a priori' cap of latent heat flux based on actual mass considerations
616        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
617        non-legacy seaice_solve4temp.
618      - add diagnostic of the residual sublimation freshwater flux (the freshwater
619        flux taken from the ocean if the total actual latent heat fluxes exceed
620        the maximum)
621      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
622       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
623      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
624       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
625      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
626      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
627    o verification 1D_ocean_ice_column:
628       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
629       update results
630    o pkg/diagnostics:
631     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
632       which are not filled-up but computed from other diags ; In this case, the mate
633       diag points to the primary (filled-up) diag to used for post processing.
634     - Update Velocity-potential computation using post-processed diag framework.
635     ==> Change the ordering of fields and time-periods in MDS output file
636       when using periodic averaging: now writes one time record with the full set
637       of fields for this time period, then the next time reccord (it used to be
638       one field with the full set of time records then the next field).
639         Note: this is now similar to NetCDF (MNC) output file. <==
640    
641    checkpoint62z (2011/06/21)
642    o adjoint monitor:
643     - Add adjoint monitor output for packages exf, seaice
644       and update relevant testreport output
645    o pkg/seaice:
646     - re-order diags inits so that they appear in order in available_diagnostics.log
647     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
648       area/heff/hsnow preceeding thermodynamic growth/melt.
649     - modified diag: SIdA; output actual effect, as the description states.
650     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
651     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
652       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
653        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
654     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
655     - added diagnostics for seaice generic tracers (SItr*).
656     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
657     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
658     I. Fenty: 18-Jun-2011:
659     Minor changes to seaice package:
660     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
661        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
662       - Differentiated "regularization variables" from "floor variables"
663        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
664        * hiceMin became SEAICE_hice_reg (old hiceMin)
665          (with _reg meaning regularization variable)
666       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
667        so as to ensure energy conservation when going between phases
668      - A22 was not used anywhere
669     2) Changed regularization procedure for heffActual and hsnowActual to ensure
670        well-boundedness and smooth adjoint in seaice_growth.F
671     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
672        because the old regularization always set heffActual >= 0.05 cm
673     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
674        on AREA when HEFF > 0.
675      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
676        requiring that DISABLE_AREA_FLOOR *not* be defined
677     Affected verifications:
678      - 1D_ocean_ice_column (output.txt output_adm.txt)
679      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
680    o pkg/diagnostics:
681      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
682      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
683        (was _RL, now integer) with option = 0 to retrieve all levels.
684      - add pieces of code to compute velocity potential at each level (new diagnostics
685        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
686        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
687      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
688        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
689        and in diagnostics_fract_fill.F (do not need a valid pointer for the
690        diagnostics counter-mate); check that definition of counter-diagnostic
691        includes a valid counter-mate (in diagnostics_set_levels.F).
692    o model/src (rStar):
693      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
694        affect solution only if z* with full pressure in EOS;
695        update output of test-exp global_ocean.90x40x15.
696    o pkg/seaice:
697      - introduce siEps=1e-5 parameter
698      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
699      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
700      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
701        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
702        as well as ice cover age and ridging index (attached to AREA).
703        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
704        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
705        Up to SItrMaxNum=3 tracers can be used simultaneously.
706    o pkg/salt_plume:
707      -introduce SPsalFRAC run time parameter that sets the fraction of the
708       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
709       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
710    o model debug options:
711      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
712        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
713      - Refine debug-msg printing selection (3 new levels):
714        debugMode  : controls printing of debug messages (sequence of S/R calls).
715        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
716         debLevZero =  0 ; /* level of disabled aux. msg printing */
717         debLevA =  1 ; /* level of minimum  aux. msg printing */
718         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
719         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
720         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
721         debLevE =  5 ; /* level of extensive debug printing */
722        New debugLevel default: with default debugMode value (=F),
723          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
724          and if debugMode=T, default debugLevel = 4 (debLevD).
725        Relation with previous settings:
726         debLevB (=2) corresponds to former debLevA (=1)
727         debLevD (=4) corresponds to former debLevB (=2)
728        Note:
729         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
730         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
731            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
732      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
733        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
734    o pkg/obcs:
735      - change OBCSfixTopo default from True to False (should not change the results);
736        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
737    o pkg/thsice:
738      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
739        2nd layer seaice sublimation (unlikely to happen)
740      - use Interior mask for OBCS in thsice_advection.F (similar to what is
741        done in gad_advection & seaice_advection).
742    o adjoint:
743      bug fix spotted by Gael Forget:
744      seaice_advection and thsice_advection still had
745      legacy CPP options to avoid CS corner updates for adjoint
746    o pkg/seaice:
747      => Change some of the defaults (2011/05/29):
748         - change SEAICEuseFluxForm default (from False to True)
749         - change DIFF1 default (from 0.004 m/s to 0. m/s)
750         And print warnings if DIFF1 is not set in data.seaice and centered
751          avection scheme is used without any diffusion.
752      also:
753      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
754      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
755      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
756        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
757        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
758      update results of test exp.:
759         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
760             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
761             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
762         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
763         seaice_obcs: output (SEAICEuseFluxForm=T)
764      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
765          for standard fwd & AD lab_sea tests (to keep the same output).
766    o pkg/seaice/seaice_growth.F:
767      - use Ian Fenty's capping formulas for actual ice
768      thickness thoughout EVOLUTION branch.
769      - put treatment pathological case #2) in CPP brackets
770      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
771      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
772    o pkg/seaice:
773      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
774      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
775      also pass fac as a param, which can be 1. (to update the tendency
776      field) or the time step (to update the field itself).
777      - seaice_advdiff.F: for multidim, call seaice_diffusion with
778      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
779      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
780      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
781      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
782    o pkg/seaice:
783      diffusion with centered advection scheme (diffus.F & advect.F):
784      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
785        to just compute the laplacian of input-field.
786      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
787      - fix flux-form version in diffus.F to conserve tracer.
788      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
789       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
790    
791    checkpoint62y (2011/05/26)
792    o pkg/seaice:
793     - seaice_growth.F : in EVOLUTION branch, always include
794       a_QSWbyATM_cover in qnet (as it should be).
795     - verification/global_ocean.cs32x15 : update results accordingly
796       (output.seaice.txt output_adm.seaice.txt).
797    o pkg/seaice + obcs:
798     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
799       equivalent of assuming no tracer gradient outside the OB region.
800       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
801     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
802       after changes above);
803     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
804       only at OB location (instead of over a band of OLx width).
805    o pkg/seaice:
806     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
807       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
808    o pkg/obcs:
809      - split header file "OBCS.h" into 4 separated files:
810        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
811       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
812         (contain no conditional statement which depends on OBCS options).
813      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
814        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
815    o ctrl, cost, grdchk & autodiff pkgs:
816      - make options file more standard (like other {PKG}_OPTIONS.h file but
817        with AD_CONFIG.h); clean-up some of the included header files.
818    o pkg/obcs:
819      - do not mask tracer when applying OB (tracer == 0 could generate problems)
820      - apply tracer OB values to tracer field only at OB location (instead of
821        over a band of OLx width)
822      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
823      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
824        obcs_apply_tloc.F & obcs_apply_sloc.F
825    o obcs in model/src:
826      - call OBCS_APPLY_W only if NonHydrostatic.
827      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
828      - reset dEtaHdt and wVel to zero outside OB interior region ;
829      - leave tracer unchanged outside OB interior region: This has no effect
830        on the solution but just to prevent unrealistic tracer value outside OB.
831      - zero out velocity outside OB interior region: This has no effect on
832        the solution but just to prevent unrealistic velocity outside OB.
833    o obcs and non-lin free-surf:
834       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
835       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
836       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
837       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
838       update results of test-exp. exp4(nlfs).
839    o exp4 (nlfs) test-exp:
840       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
841       with NonLin-FreeSurf); update output.nlfs.txt
842    o obcs and 2d/3d solver norm:
843       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
844       and outside OB interior region (will allow to place OB further inside the
845       domain). Depending on the domain, can affects cg2d-Norm (previous
846       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
847       and cg3d-Norm (previous Norm was computed before canceling OB terms),
848       e.g. in tutorial_plume_on_slope.
849      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
850    o pkg rbcs:
851      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
852      - add capability to apply relaxation to horizontal velocity uVel & vVel.
853    o pkg/grdchk: add gradient check for control variable xx_shifwflx
854    o pkg/shelfice/shelfice_init_fixed.F
855      fix CPP-flag combinations
856    o pkg/seaice: Merge iceage code of Pierre Rampal
857      * update/change/correct ice age calculations
858      * add age updates for pathological cases
859      Probably needs more testing...
860    
861    checkpoint62x (2011/05/13)
862    o pkg/mom_vecinv:
863       high-order vorticity scheme: use interior masks (maskInW & S)
864       to zero-out (outside OB) gradient of vorticity.
865    o verification exp.:
866       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
867       hs94.128x64x5 and seaice_obcs ; update results.
868    o pkg/obcs:
869      fix bug in OBeta for YZ sections in obcs_exf_load.F
870    o pkg/ctrl, pkg/shelfice, and optim:
871      - add new control variable xx_shifwflx (fresh water flux underneath ice
872        shelves). This is almost as tedious as obcs-ctrl, because the
873        variables needs its own mask.
874      - add a cost function term that penalizes the deviation of xx_shifwflx
875        from the first guess (zero) in analogy to other control variables
876    o pkg/shelfice:
877      - start basic adjoint
878    o pkg/ctrl:
879      - remove extra 2D field "for good measure" when initializing in
880        ctrl_set_globfld_[xy/xz/yz].F
881      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
882      - improve error messages in ctrl_set_unpack_*
883    o OBC implementation in momentum:
884       use interior masks (maskInC,W & S) in momentum S/R:
885       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
886       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
887       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
888       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
889       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
890        (and also with Leith/Smagorinsky harmonic-viscosity).
891       Update output of experiment dome and exp4 (+nlfs).
892    o exp4 test-exp:
893      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
894        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
895        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
896        time-varying OB at Western-side for wVel (NonHyd); update output.
897      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
898        and biharmonic-viscosity ; also use prescribed time varying OB.
899    o pkg/obcs:
900      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
901    o model/src:
902      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
903      - initialise startTime & nIter0 with unlikely values: allows to set one
904        from the other without ambiguity.
905    o seaice_obcs test-exp.:
906      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
907    o pkg/obcs:
908      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
909        no longer needed with maskInC,W,S in pkg/generic_advdiff.
910    o pkg/seaice:
911      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
912        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
913      - fixed bug in the initialization of sea ice salinity variable HSALT
914        in seaice_init_varia.F  (removed dependence on ICE2WATR)
915    o fizhi-cs test exp.:
916       switch reference output convention for these 2 non-standard test-exp,
917        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
918          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
919       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
920    o model/inc:
921      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
922        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
923    o pkg/seaice:
924      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
925    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
926      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
927        and initial HSALT
928    
929    checkpoint62w (2011/04/26)
930    o pkg/mom_fluxform:
931      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
932      - use parameter "sideDragFactor" in no-slip BC side-drag part.
933      - update output of exp. global_ocean.90x40x15
934    o pkg/mom_vecinv:
935      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
936    o update seaice exp.:
937      use more consistent parameter values (remove "backward compatability only":
938       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
939      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
940       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
941    o update test-exp global_ocean.90x40x15:
942      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
943      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
944      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
945      o turn on zStar & viscA4 in standard set-up (dir input/)
946        and update output files: output.txt & output.dwnslp.txt
947    o new AD-test experiment: obcs_ctrl
948      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
949    o pkg/dic:
950      fix two bugs in handling water vapour pressure in carbonate chemistry
951      and air-sea fluxes. Found by Val Bennington and Galen McKinley
952      (add DIC Option = WATERVAP_BUG to recover old results)
953      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
954    o adding allowInteriorFreezing option to check for water below freezing point
955      at depth and bring the negative heat anomaly to the surface level
956    o pkgs _fields_load:
957      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
958      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
959        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
960        rbcs to get interpolation weights and time reccord number.
961      - fix multi-threading in aim_fields_load.F
962      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
963    o external_fields_load:
964      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
965       interpolation weights) to use in a periodic time-series ; do not divide by
966       time-step to convert to integer:
967       - this fixes case where externForcingPeriod is not multiple of time-step
968          (Thanks to Christopher L. Wolfe)
969       - this fixes case where externForcingPeriod is an odd multiple of time-step
970         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
971      store index of time-record which is currently loaded:
972       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
973       - needed for the adjoint but not yet used because of extensive recomputations;
974         (to be fixed soon)
975    
976    checkpoint62v (2011/04/02)
977    o verification/1D_ocean_ice_column added to test Ian Fenty's
978      pkg/seaice_growth.F modifications for improving sea ice code differentiability
979    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
980      (new velocity statistics after changing maskInW & maskInS definition)
981    o pkg/generic_advdiff with OBCS:
982      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
983      equivalent to assumption of no tracer gradient outside the OB region.
984      This will affect the results if using obcs+biharmonic diffusion.
985      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
986    o pkg/obcs:
987      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
988      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
989      in Interior region. No impact on solution but affects Velocity monitor stats.
990    o pkg/ptracers (adjoint)
991      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
992      tape file for each tracer
993    o model/inc/src and pkg/autodiff: add parameters that allow to turn
994      of parts of the adjoint code at run time. For now, there are only
995      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
996      parameters are set in data.pkg.
997      This is the lazy coward's version of doing this, but still useful for
998      debugging. In order to do it right, everything needs to be moved to
999      pkg/autodiff.
1000    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
1001      the end; this fixes the adjoint balancing code for open boundaries.
1002    o pkg/ctrl:
1003      - change behavior of xx_${varname}period to be analogous to exf-conventions:
1004        xx_${varname}period =   0.,  means time-independent control part
1005        xx_${varname}period = -12., means one-year-periodic monthly control part
1006      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
1007        clean up ctrl_init a little, remove unused variables
1008      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
1009      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
1010    
1011    checkpoint62u (2011/03/15)
1012    o model/src:
1013      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
1014        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
1015      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
1016        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
1017    o pkg/ctrl/obcs/ecco:
1018      - remove obsolete, unused, and partially broken code:
1019        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
1020        ALLOW_CTRL_OBCS_BALANCE
1021      - put a stop statement into ecco/cost_obcsvol.F, but also add
1022        cost_obcsvol to ecco_ad_diff.list
1023    o pkg/ecco: fix counting cost function contributions for obcs (code
1024      by Matt M.) and diffkr for diagnostics
1025    o pkg/ecco, pkg/ctrl, pkg/grdchk:
1026      add cost penalty terms for initial uvel, vvel, eta controls
1027      and I/O for prior error files
1028    o pkg/mdsio:
1029       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
1030       (new argument) to check for tiled file in mdsioLocalDir : this fix the
1031       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
1032    o pkg/ctrl:
1033     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
1034       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
1035       unused and superfluous variables
1036     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
1037    o pkg/ecco
1038     - enable adjoint of Stevens OB
1039    o pkg/ctrl/ecco/grdchk:
1040      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
1041        Fortunately, we do not have any tests for the numerous cpp-flagged
1042        option of "obcs as control parameters" so we will never know
1043        if this is an improvement (but at least now things compile).
1044      - remove an obsolete initialization from ecco_cost_init_barfiles.F
1045      - fix some problems within never used ifdefs to make the code compile
1046    o pkg/obcs:
1047     - Refine Interior mask definition to work with more complex OB (e.g.
1048       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
1049       read in Interior mask from file. Check if Interior mask is consistent
1050       with OB list of indices.
1051    o pkg/seaice
1052     - beginning code for a seaice tracer package,
1053       but currently only used for seaice age: SEAICE_AGE
1054       SEAICE_num = 4
1055       iTracer = 1: area-weighted ice age
1056               = 2: volume-weighted ice age
1057               = 3, 4: template for one-year vs. multi-year ice
1058       data.seaice has new namelist SEAICE_PARM03 for arrays related to
1059       SEAICE_num
1060    
1061    checkpoint62t (2011/03/05)
1062    o pkg/obcs:
1063     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
1064       then normal component. This ensures that the normal component is set
1065       correctly even when it conficts with tangential setting from an other OB.
1066       Affects results of test-experiment seaice_obcs: update the output.txt
1067    o pkg/obcs:
1068     - add code to monitor statistics of dynamical fields at OB.
1069     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
1070       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
1071       - change default: balance the Net inflow through all OB (instead of balancing
1072         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
1073     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
1074       to match Nortern OB inflow (OBCS_balanceFacN=0).
1075    o pkg/seaice:
1076     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
1077    o pkg/seaice (seaice_growth v 1.113):
1078     - reverting seaice_growth to v 1.111 in order to have code with exact bit
1079       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
1080       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
1081       runtime flag SEAICEareaFormula is kept but is inactive
1082    o model/src:
1083     - add new param to scale curvilinear grid distance and area when using
1084       a different sphere radius from the grid-files.
1085     - test/check multi-threads EXCH applied to local variable (cg2d_x)
1086    o adjoint:
1087     - enable adjoint of Stevens OB
1088     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
1089       (a bit delicate because of potentially modified adj. common block structure;
1090       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
1091    
1092    checkpoint62s (2011/02/15)
1093    o pkg/seaice (seaice_growth v 1.112):
1094     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
1095       computing the ice cover tendency from effective thickness tendencies. Include
1096       Ian Fenty's formula.
1097     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
1098       SEAICEareaFormula.
1099     - simplify notations for the various d_HEFF/d_AREA terms.
1100    o pkg/gmredi:
1101     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
1102       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
1103       add a verification test-run (front_relax.bvp) to test GM_useBVP.
1104    o pkg/seaice (seaice_growth v 1.111):
1105     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
1106     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
1107       also melt ice.
1108    o pkg/seaice:
1109     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
1110     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
1111    o pkg/cheapaml:
1112     - from Nico Wienders: New version of this package.
1113    o pkg/flt:
1114     - add CPP options to prevent floats to re-enter the opposite side of
1115       a periodic domain (default: keep periodicity)
1116    o pkg/gmredi:
1117     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
1118       (needed for multi-dim advection).
1119     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
1120    o model/src:
1121     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
1122    o tutorial_tracer_adjsens
1123     - extend to NLFS and replace maskC by hFacC
1124       (change reference output accordingly)
1125    
1126    checkpoint62r (2011/01/24)
1127    o testreport:
1128     - add option -deloutp (-do) to remove output file after successful run
1129     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
1130       extract exact list of procs from this file ; adjust COMMAND by
1131       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
1132    o pkg/ecco: replace old ineffective way of penalizing deviations from
1133      first guess (of obcs) with code by Matt Mazloff
1134    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
1135      exf/cal
1136      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
1137        and handle case of obcs?period == 0
1138        Not affected by these changes: There is still an inconsistency in
1139        the computation of start/endrec for the obcs variables for ALLOW_CAL
1140        defined (see comment by Menemenlis, 7-Mar-2003)
1141      - make S/R ctrl_get_gen_rec return something meaningful even if
1142        ALLOW_CAL is not defined
1143      - ctrl_getobcs?: simplify code so that it does not need to use
1144                       S/R exf_swapfields
1145    o testreport:
1146       allow to test MPI with different number of processors for each experiment:
1147       create file "SIZE.h.mpi" in each build dir.
1148       Note: update of "-command" argument not yet implemented.
1149    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
1150      alleviate the need for additional 3D tapes when using
1151      the non-inear free surface in the adjoint. This is done
1152      by adding an 'update' of hfacc etc. to their current
1153      value at the beginning of forward_step.F.
1154    o pkg/seaice
1155      seaice_lsr: move stress-divergence computations out of outer pseudo-
1156      timestepping loop
1157    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
1158      up, so that the calls of the ctrl_* subroutines are really at the end
1159      of the routine.
1160    o pkg/gmredi:
1161      allow to specify a 2-D horizontal map and a 1-D vertical profil
1162      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
1163    o pkg/seaice:
1164      move lsr iterations from seaice_dynsolver to seaice_lsr.
1165    o pkg/seaice:
1166      reduce memory footprint of seaice mutldim advection tapes,
1167      by using a 2D tape independent of the generic_advdiff ones,
1168      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
1169    
1170    checkpoint62q (2010/12/29)
1171    o model/src:
1172      - check horizontal grid-spacing for unset or zero/negative values.
1173      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
1174    o pkg/flt:
1175      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
1176      - precision of input and output files set according to readBinaryPrec
1177        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
1178      - initial float position from tiled file was not converted to index space
1179        (looks like a bug): fixed to make it similar to initial pos. global file.
1180    o global_ocean.cs32x15:
1181       change SIZE.h of AD set-up to get same tiling as with MPI.
1182       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
1183    o model/src:
1184       add flag to control printing of domain fields (bathymetry, hFac ...) in
1185       ini_mask_etc (call to plot_fieds_xy*).
1186    o pkg/thsice:
1187       if useEXF, some forcing fields are not valid in overlap: fixed by computing
1188       over the interior only + apply EXCH at the end (like with SEAICE advection).
1189    o pkg/mdsio:
1190      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
1191        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
1192      - change barrier call for safe multi-threads access to 3-D shared buffer.
1193      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
1194      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
1195        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
1196    o pkg/flt:
1197      - add fourth-order Runge-Kutta integration
1198      - add basic exch2 support (only 1 facet supported so far!)
1199    o pkg/mdsio+rw:
1200      new S/R to read local (or tile independent) vector (read counterpart of
1201       mds_writevec_loc, and front-end write_glvec_rl/rs).
1202    o global_ocean.cs32x15: additional input_ad.seaice experiment
1203        that uses pkg/seaice rather than pkg/thsice.
1204        (using multidim advection for seaice)
1205    o towards more F95 syntax for array specification in namelist:
1206      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
1207        of all verification experiments.
1208           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
1209          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
1210      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
1211    o global_ocean.cs32x15: additional input.seaice experiment
1212        that uses pkg/seaice rather than pkg/thsice.
1213    
1214    checkpoint62p (2010/12/17)
1215    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
1216        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
1217    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
1218        allow for use of multim. advection in seaice adjoint.
1219    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
1220      - first attempt to close budgets by taking into account the freshwater
1221        flux implied by the sublimation of snow and ice. So far only the
1222        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
1223        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
1224    o eesupp/src:
1225      new S/R with new option (NML_EXTENDED_F77) to change array specification
1226      from F95 standard to commonly accepted extended F77 form.
1227      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
1228      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
1229      for less tolerant f77 compiler (e.g., pgf77, g77).
1230    o globalFiles:
1231      commented out in parameter file "data" since it's not safe with MPI
1232      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
1233      in this case); no longer commented out in restart test (tst_2+2).
1234    o add adTapeDir to specify a special directory where adjoint tapes are
1235      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
1236      and cannot be used together with mdsioLocalDir.
1237    o nesting pkgs:
1238      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
1239      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
1240      - add parameter files + utils dir + output from short run on beagle.
1241    o pkg/seaice:
1242        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
1243    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
1244      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
1245    
1246    checkpoint62o (2010/11/25)
1247    o pkg/exf:
1248      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
1249    o pkg/seaice:
1250      - seaice_ocean_stress: split a loop for better vectorization of the
1251        adjoint code
1252      - seaice_growth.F: fix bug in conservation of freshwater connected to
1253        capping of heff, put contribution into d_HEFFbyNEG
1254      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
1255        by something more sensible (parameters that are what their name implies)
1256      - change some defaults, so that by default exf-parameters are used for
1257        things like rhoAir, cpAir,latent/sensible heat parameters, in order
1258        to reproduce the old results, many data.seaice now contain funny values
1259        for cpAir and latent heat of sublimation
1260    o packages_readparms.F: move exf_readparms up in line so that
1261        exf-parameters are visible for other packages (e.g. seaice)
1262    o debugMode & debugLevel=2:
1263      - differentiate between debugMode & debugLevel=2:
1264        debugMode: controls printing of debug messages (sequence of S/R calls).
1265        debugLevel: controls printing of algorithm intermediate results and stats.
1266      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
1267        => allows to print debug-stats without all sequence of call messages.
1268      - switch control of debug print from debugLevel to debugMode in many S/R.
1269    o pkg/obcs (obcs-sponge):
1270        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
1271        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
1272    o pkg/generic_advdiff:
1273      - record overlap minimum size for each advection scheme;
1274      - refine criteria on overlap minimum size;
1275      - check and stop (in gad_check) if overlap size is too small.
1276    o pkg/obcs:
1277      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
1278        once, in ptracers_implicit.F)
1279      - with seaice: remove test on empty file name in obcs_apply_seaice (always
1280        apply OB values when tile has OB)
1281    o model/src, coriolis setting:
1282      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
1283        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
1284        files (selectCoriMap=3) with any grid.
1285      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
1286    o pkg/seaice/seaice_growth.F:
1287        a few cosmetic changes that reduce the number of lines of code
1288    o pkg/obcs: add boundary conditions following Stevens (1990)
1289      - the code follows old MOM/NAOSIM code
1290      - so far it is only implemented for the eastern and western boundaries
1291        and NOT for pTracers
1292    o pkg/rbcs:
1293      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
1294        beginning of the first rbcs forcing period.
1295      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
1296        offline package, i.e., one file per time, labeled by iteration number;
1297        deltaTrbcs sets the timestep with which the data was generated;
1298        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
1299      - rbcsForcingCycle=0 makes forcing non-cyclic.
1300      - make arithmetic safe for negative times and odd forcing periods.
1301    
1302    checkpoint62n (2010/11/09)
1303    o pkg/seaice:
1304        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
1305    o pkg/obcs:
1306       New S/R to copy tracer value from the OB location to narrow band region
1307        (width = same as overlap) beyond the OB: preserve OB value (needed for
1308        high-order scheme) which were overwritten by EXCH call if in overlap
1309        region. Applied to theta, salt, ptracer and advected seaice variables.
1310       With seaice: use maskInC in similar way as in gad_advection.F,
1311        in seaice_advection.F and advect.F.
1312       Update output of experiment seaice_obcs and change exp4 to test OBCS with
1313        4th order Adv.Scheme. for pasive salt and ptracer.
1314    o tools/genmake2:
1315      - when looking for an optfile (not specified), only search for Fortran compiler
1316        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
1317      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
1318        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
1319      - set default for CPP to "cpp -traditional -P" (was the case without specifying
1320        an optfile, but otherwise default was just "cpp".
1321      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
1322      - when "CC" is not set in the optfile, look for possible C compiler
1323        (instead of just setting CC=cc)
1324      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
1325        => add a ".F" to ".o" rule for source files with no "#include" (such as
1326           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
1327      - move gfortran before g77 in list of possible Fortran compiler (consistent
1328        with reference compiler switch from g77 to gfortran)
1329    o pkg/seaice:
1330      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
1331        seaice_check that stops the model, when the CPP flag is used.
1332      o seaice_growth.F: make capping of ice volume conserving by returning the
1333        capped ice as freshwater to EmPmR. This does not change the verification
1334        experiments but will change runs where the capping is acutally active
1335    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
1336      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
1337         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
1338         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
1339    o tools/genmake2:
1340      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
1341      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
1342      - clean previous genmake log files before anything else.
1343      - change Makefile to remove testreport log files (*.tr_log) and genmake log
1344        files only with "CLEAN" target (instead of "Clean");
1345    o pkg/generic_advdiff:
1346      Change OBCS in multiDim advection (gad_advection.F):
1347       Use maskInC to prevent intermediate update of tracer-field in OB regions,
1348       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
1349       which were applying future time-step OB values.
1350      This way, all explicit calculations use current-time-step OB values
1351       (simpler and more consistent).
1352      Affects results when set-up uses time-varying OBC and multi-dim advection;
1353       update output of experiment seaice_obcs.
1354    o pkg/seaice:
1355      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
1356       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
1357         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
1358      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
1359       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
1360       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
1361    o pkg aim (2010/10/26):
1362      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
1363        formulation with obliquity, eccentricity, ... as run-time parameters,
1364      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
1365        upward shortwave radition at the surface (all-sky and clear-sky).
1366    o pkg/obcs:
1367      - writing sections with globalFiles=T does not work: switch to tiled-files
1368        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
1369      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
1370      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
1371    
1372    checkpoint62m (2010/10/21)
1373    o pkg/seaice: vectorize seaice_solve4temp.F
1374      - move iterations loops outside of i/j-loops
1375      - requires 2D arrays for TB and effConduct
1376      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
1377        modified in this routine
1378      - a little bit of clean up, adjusting indentation, etc.
1379      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
1380        performance and '**TWO' by '**2' (because TWO is a float),
1381        replaced ONE, ZERO
1382    o eesupp/src:
1383       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
1384    o pkg/seaice/seaice_growth.F
1385      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
1386      merging process. The merged routine has two branches, and one activates the 'evolution'
1387      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
1388      In summary, here is what the '10/10 revision' did consist of
1389        part 1: seaice_growth.F revisions 1.71 to 1.75
1390          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
1391            The emphasis here was on improving readability (e.g. by trying to use meaningful
1392            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
1393        part 1.5:
1394          - revising the lab_sea experiment to make it a more useful (i.e. stable
1395            and representative of an actual model run). This was done by generating a
1396            (winter) pickup to start from, switching back the main experiment dynamic
1397            solver from evp to lsr, having one of the experiments use the free drift solution.
1398        part 2: seaice_growth.F revisions 1.76 to 1.85
1399          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
1400          - Sorting out the various fields units and sign (set early on and reset at the end)
1401            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
1402            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
1403          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
1404            and simplifying logical expressions to further improve readibility.
1405        part 3: seaice_growth.F revisions 1.86 to 1.89
1406          - Re-organize the blocks of code more logically.
1407          - Merging the '_if.F' pieces that add something new.
1408    o pkg/thsice:
1409      - vectorize thsice_solve4temp and thsice_get_exf.
1410        Problem: thsice_solve4temp has an unvectorizable statement that
1411        might also be problematic for TAF
1412      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
1413        does not change the verifcation experiment, but will change all
1414        experiments that have this flag undefined (not tested in verification);
1415        a little reorganization to save a few 2D fields and recomputations
1416      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
1417      - 2nd step:  fix some store dirs
1418        o seems to work somewhat, i.e. using ifort but not g77
1419        o likely cause are incomplete init. or recomputation
1420        o start verification/global_ocean.cs32x15/input_ad.thsice
1421    o pkg/obcs: add support for exch2
1422      - the position of the boundary and prescribed values are specified using
1423        a global domain with exch2 facets stacked
1424        - in x for N,S boundaries (like W2_mapIO=-1)
1425        - in y for E,W boundaries (so E,W boundaries do not overlap)
1426    o pkg/mdsio: add support for writing global sections with exch2
1427        file layout is as for obcs described above:
1428        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
1429        - for y-z sections, facets are stacked in y
1430    o pkg/thsice:
1431       - change a few routines for better vectorization: thsice_albedo.F,
1432         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
1433         not affected, but in particular the latter routine has changed
1434         dramatically (not necessarily easier to read now).
1435       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
1436       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
1437    o verification/lab_sea:
1438      - overhaul of the forward model experiments. The main motivation
1439        for this revision is that lab_sea has proven quite fragile (when
1440        changing the sea-ice code, and switching platforms) to a point
1441        when failures were very hard to attribute to specific code problems.
1442      - the suspected reason for this fragility is noise amplification by evp so,
1443        to start with, we decided to replace evp with lsr in the main experiment.
1444      - the input.lsr experiment thus became obsolete and was removed.
1445      - it was replaced with the input.fd experiment that uses an
1446        analytical "free drift" solution as the ice velocity field.
1447      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
1448        will hopefully allow us to discriminate problems due to dynamic solvers
1449        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
1450        us to test additional options, along with the salt plume package.
1451      - Finally a pickup was generated (at the end of a one year run) to
1452        make the tests more representative of an actual model run. Previously
1453        the tests starting point was a 1m thickness of ice everywhere.
1454    o pkg/seaice:
1455      - introducing S\R seaice_freedrift.F that compute the
1456        analytical solution to an approximate ice momentum
1457        equation (i.e. the simple stress/coriolis balance).
1458      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
1459        of the free drift velocity field, and enable its use.
1460        To actually use the free drift solution as the model ice
1461        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
1462    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
1463    
1464    checkpoint62l (2010/10/04)
1465    o pkg/seaice:
1466      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
1467      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
1468       version (with USE_ORIGINAL_SBI undef);
1469    o add hooks for new packages OASIS, the package will follow
1470      (hooks exclude the seaice pkg for now)
1471    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
1472      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
1473      rather than mdsio_readvector.F/mdsio_writevector.F, within
1474      adread_adwrite.F to read/write adjoint-related tapes to disk.
1475    o eesupp and pkg/mdsio: ALLOW_WHIO
1476      Option to write/read 2D fields to files including tiles halos.
1477      The main purpose is for adjoint related "tape I/O".
1478      The secondary purpose is for debugging phases.
1479      A word on those rather specifically intended purposes.
1480      The code was meant to be stripped down to the bare minimum.
1481      Typically, there is a unique and basic mapping to the global
1482      buffer (tile by tile, then proc by proc, then level by level), and
1483      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
1484      meant to generate user friendly outputs of various shapes and forms.
1485      Rather it is intended, for the knowledgeabale developers,
1486      to be largely independent of the many mdsio options, to allow
1487      outputs of tiles+halos in debugging phases and in adjoint runs,
1488      and to allow some flexibility in tuning (adoint) I/O depending on each
1489      file system behavior. With regard to tuning, most of the potential knobs
1490      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
1491      to specify directories, to specify the typical size of I/O calls, etc.)
1492      are not yet included, and will be added if they prove useful.
1493    o pkg/seaice:
1494       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
1495    o pkg/seaice:
1496       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
1497       code (seaice_budget_ice_if.F) which enable to recover old standard
1498       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
1499       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
1500    o model/src (rStar):
1501       use simple average (not area weighted) of rStarFac at U,V point when using
1502       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
1503       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
1504    
1505    checkpoint62k (2010/09/17)
1506    o adjoint
1507       * changed verification/global_ocean.cs32x15 ; adjoint now tests
1508         Adams-Bashforth 3 + NLFS + RSTAR
1509       * some more modifs required for ECCO-GODAE v4
1510    o pkg/seaice
1511       add SEAICE_AGE_VOL option to use volume instead of area for
1512       integrating SEAICE_AGE
1513    o model/src:
1514     first check-in of sigma & hybrid-sigma coordinate code ; also includes     first check-in of sigma & hybrid-sigma coordinate code ; also includes
1515     non-linear free-surface parts ; but pressure-gradient not yet coded.     non-linear free-surface parts ; but pressure-gradient not yet coded.
1516  o pkg/ptracers:  o pkg/ptracers:
# Line 273  o tools/build_options: Line 1779  o tools/build_options:
1779      but keep the former optfile for few weeks for smooth transition      but keep the former optfile for few weeks for smooth transition
1780  o pkg/ecco  o pkg/ecco
1781    - allow user defined cost function contributions    - allow user defined cost function contributions
1782          CPP: ALLOW_USERCOST_CONTRIBUTION       CPP: ALLOW_USERCOST_CONTRIBUTION
1783          USAGE: compute contributions in cost_usercost_all.F       USAGE: compute contributions in cost_usercost_all.F
1784    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
1785        the two options are complementary.        the two options are complementary.
1786  o pkg/smooth  o pkg/smooth

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