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revision 1.1295 by jmc, Sat Sep 11 21:39:13 2010 UTC revision 1.1577 by mlosch, Fri Jan 20 14:35:03 2012 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/diagnostics/diagstats_calc.F
8      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
9    o pkg/obcs (with exch2):
10      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
11        and remove code (in obcs_readparms.F) which was based on EXCH of indices
12        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
13    o pkg/exf and seaice exp:
14      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
15        so that switching off area & heff advection flags does not affect results.
16      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
17      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
18        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
19        results of verification experiments: 1D_ocean_ice_column(fwd),
20        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
21        and offline_exf_seaice (all 4).
22    o pkg/seaice:
23      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
24        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
25      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
26        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
27        not multi-dim advection;
28      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
29        SHORTWAVE_HEATING #undef.
30    o optim: make Makefile more robust (?)
31    o pkg/obcs:
32      * fix treatment of obcs_read_pickup for TAF
33    o pkg/shelfice:
34      * add missing initialisation of num_shifwflx
35      * new adjoint verification exp. for isomip
36      * change Prandtl and Schmidt numbers from generic formulations
37        (in terms of model diffus. and visc.) to separate runtime
38        parameters, with Holland and Jenkins (1999) default values.
39    o pkg/exf (interpolation):
40      - extended input field (2 rows) near the N & S poles:
41        * fill in with the symetric value (when even Nb of data in longitude)
42        * add average value at the poles only for scalar quantities ; for vector
43          component interpolation, skip the averaging and keep duplicated values,
44          unless the 2 components have same location (uvInterp=T) in which case
45          interpolate the 2 components together using S/R EXF_INTERP_UV.
46      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
47        together: this allows to account properly for local orientation when
48        averaging at N & S pole.
49      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
50        exf-interpolation near N & S poles. Undef by default.
51      - add debug check/print on 1rst iter if debugLevel >=2.
52    o pkg/exf:
53      - change masking flags definition (no longer "parameter"), put them in
54        common block and set them in S/R EXF_INIT_FIXED.
55      - change recognized masking flag from s,u,v to c,w,s since the mask
56        to use (maskC,W,S) depends on position on model grid and has little to
57        do with scalar/vector difference; fix masking if using P-coordinates.
58      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
59        and update results of exp. global_with_exf (x2).
60      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
61    o pkg/obcs
62      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
63    o pkg/exf (interpolation):
64      - assume periodicity in X only if input field cover full longitude range.
65      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
66        and should vectorise).
67      - fix input lat of the 2 added row (in case we provide N.pole data).
68    
69    checkpoint63h (2011/12/30)
70    o pkg/seaice:
71      - change declaration of UVM from _RL to _RS in order to get B-grid
72        uIce,vIce monitor when _RS = real*4
73    o pkg/offline:
74      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
75      - compute vertical velocity if not read from file (switch on exactConserv
76        & staggerTimeStep);
77      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
78    o verification:
79      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
80        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
81        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
82      - update output of exp. global_ocean.cs32x15.viscA4 after changing
83        grid-file angles (used here for coriolis-3d);
84      - remove (or gzip) few files not needed to run fizhi-cs experiments.
85    o pkg/exf (vector interpolation):
86      - rotate vector component toward local grid-axis orientation using grid-angles
87        (stored in GRID.h) instead of locally computed rotation angle; keep old code
88        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
89    o pkg/seaice:
90      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
91        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
92    o pkg/PKG_OPTIONS.h files:
93      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
94        outside of the #ifdef ALLOW_THISPKG / #endif block.
95      - update verification/*/code/PKG_OPTIONS.h files.
96    o add a verification experiment (offline_exf_seaice/input.seaice) that test
97      the B-grid LSOR solver
98    o pkg/seaice: sort out emissivity and long wave radiation step 2:
99      - add emissivity for snow and ice as new run-time parameters
100        (unfortunately) that default to the corresponding exf values; this
101        changes results in most verification experiments so that for backward
102        compatibility these parameter have to be set explicitly to inconsistent
103        values (ugly);
104      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
105        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
106        until we agree how to handle this bug properly
107    o pkg/exf (interpolation):
108      - add a set of run-time param ({inputfield}_interpMethod), one for
109        each interpolated input field, to select the interpolation method
110        with a value of zero switching off the interpolation;
111      - print interpolation parameters to standard output;
112      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
113        (to use instead runoff_interpMethod=0 in data.exf).
114      - simplify default setting of interpolation parameters (for all fields,
115        set position to match model grid cell-center position, leading to trivial
116        interpolation in case of regular Lat-Lon grid) and fix for the case of
117        non-uniform delY.
118    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
119       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
120       this factor is absolutely required, because the lw exitance (= out-going
121       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
122       where the reflectivity rho = 1-emissivity for conservation reasons. Once
123       this is established, we can remove the CPP-Flag (if we want to).
124    o pkg/seaice:
125      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
126        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
127      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
128        what the name implies (and not emissivity*BoltzmannConstant), this means
129        the old default value of 5.5e-8 now means
130        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
131        S/R exf_readparms
132      - FV-discretization of the B-grid LSOR solver, turn on with
133        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
134        of the calling routine dynsolver, so that B and C-grid code look a
135        little more alike.
136      - fix index bugs in ostres.F (B-grid code)
137    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
138    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
139      default for SEAICE_emissivity, if useEXF; requires setting a wrong
140      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
141      backward compatiblity
142    o model/src: use sigmaR in calc_ivdc
143    
144    checkpoint63g (2011/12/16)
145    o pkg/seaice/seaice_growth.F:
146      fix heat conservation of the coupled ocean-seaice system.
147      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
148      solid vs liquid water treatment is resolved via QNET.
149    o pkg/seaice/seaice_growth.F:
150      add missing term for sublimation in saltFlux, which was breaking conservation.
151    o pkg/seaice/seaice_model.F:
152      Remove this patholigical case treatment in evolution branch,
153      where it is un-necessary and breaks conservation.
154      Update global_ocean.cs32x15/results accordingly for
155      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
156    o model/src:
157      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
158      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
159    o pkg/obcs:
160      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
161      tendency for temperature and salinity that is then applied to update
162      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
163      horizontal advection and diffusion contributions on the boundary (in
164      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
165      removing the mask in S/R timestep_tracer. The advantage of this approach is
166      that the updated tracer values include contributions from the surface
167      forcing and vertical diffusion.
168      This modification changes exp4.stevens because of vertical diffusion.
169    o model/src:
170      change non-curvilinear grid setting to also work with exch2 + blank tiles:
171      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
172        face dimensions.
173      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
174        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
175        and INI_SPHERICAL_POLAR_GRID.
176      change test-experiment global_ocean.90x40x15:
177      - split the domain in many more tiles (9x4 tiles of 10x10 each);
178      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
179      - update results of both test (std & dwnslp).
180    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
181       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
182    o model/src:
183      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
184        and fix initialisation when using sigma-coords.
185    o model/src:
186     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
187       to their current value at the beginning of forward_step.F": add a new run-time
188       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
189     - set doResetHFactors=T in the following test exp:
190        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
191        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
192        and tutorial_global_oce_in_p (nonLinFS in p)
193    o pkg/ecco
194      - added IES cost term
195    o verification/advect_xz
196      - scale down the depth by 1/100 (from 200 km to just 2.km)
197      - add secondary test using divergent flow, r-star and implicit vertical advection.
198      - add note (check_conserve_TS.txt) and matlab script to check global
199        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
200    o pkg/rbcs:
201      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
202    o pkg/obcs (Stevens BCs):
203      - fix various problems in the phase speed computations of the Stevens
204        boundary conditions:
205        - sign error for western and southern boundaries,
206        - time tendencies were underestimated by factor of dTracerLev and some just
207          zero (for multidim advection schemes) -> now estimate time tendencies
208          from difference between previous (n) time level and the one before (n-1);
209          this requires storing a field per tracer per boundary, also in the pickup
210          files.
211        - replace deltaTmom in cflMer/Zon computation with dTracerLev
212        - set default phase velocity to cflMer/Zon
213      - update verification experiment exp4.stevens
214    o pkg/generic_advdiff (implicit_r):
215      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
216        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
217      - fix implicit vertical diffusion or advection with NonLin FreeSurf
218        (was using current recip_hFacC instead of future recip_hFacC): set future
219        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
220        solver S/R ;
221      - fill diagnostics of vertical advective fluxes (computed from tendency)
222        when using implicit vert. advection;
223      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
224         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
225         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
226         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
227    o pkg/diagnostics:
228      - add diags for T & S tendency which goes through Adams-Bashforth.
229    
230    checkpoint63f (2011/11/30)
231    o pkg/obcs/obcs_calc_stevens.F:
232      - join some loops to reduce number of if-statements
233      - fix a bug in code for northern and southern boundaries.
234    o pkg/seaice/seaice_init_varia.F
235      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
236        caused zero ice-velocities for the B-grid code
237    o pkg/seaice/seaice_init_fixed.F
238      - fix a bug in the initialisation of the second metric terms
239        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
240      - this affects all seaice configurations with useCurviLinearGrid = .true.
241        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
242        = .true. (default)
243      - the only verification experiment affected is global_ocean.cs32x15:
244        icedyn, seaice, and seaice_dynmix (AD)
245    o pkg/thsice/thsice_diagnostics_state.F
246      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
247        not contain garbage that can lead to surprises in diagstats_calc.F
248    o model/src:
249      - move bi,bj loops inside INTEGR_CONTINUITY ;
250      - call INTEGR_CONTINUITY directly from forward_step.F
251        (previously called from momentum_correction_step.F)
252      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
253        forward_step.F and pkg/ecco/the_main_loop.F
254    o model/src/do_oceanic_phys.F:
255      - reset addMass to zero only if useICEFRONT ;
256      - separated k-loop for rhoInSitu calculation ;
257      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
258        and at constant T,S (= WdRHOdP);
259      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
260        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
261        transport of locally-referenced potential density);
262        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
263    o gluemnc:
264      - replace ncrcat with ncks when adding variables to *.glob.nc
265      - change the way variables without record dimensions are handled so that
266        files that have variables with and without record variables can be glued:
267        add a record dimension with a new unique name to be able to differentiate
268        between variable with and without a-prior record dimensions. Remove
269        this record dimension before adding the variable to the *.glob.nc file.
270        This procedure automatically works also for grid.*.nc files that do not
271        have any record dimension.
272    o verification/cpl_aim+ocn:
273      - generate new reference output on baudelaire (gfortran, mpich2) (previously
274        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
275    o pkg/obcs/obcs_calc_stevens.F:
276      - add code for northern and southern boundaries.
277      - reorder some loops to save some operations and so that drFBar can be scalar
278    o model/src:
279      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
280        truncation) and add diagnostics for Adams-Bashforth tendency increment.
281      - update test-exp. AD output:
282        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
283      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
284        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
285        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
286        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
287        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
288        tutorial_plume_on_slope.
289    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
290      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
291      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
292      does not even come with an F77 compiler anymore, this should not be
293      a limitation
294    
295    checkpoint63e (2011/11/06)
296    o pkg/seaice adjoint of LSR:
297      - substantially rework STORE dirs.
298      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
299        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
300        and only perform SOLV_MAX_FIXED adjoint iters.
301        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
302        always goes to same record, meaning that the last forward field will be
303        the one used in the adjoint - an approximation.
304      - now produces non-zero LSR-related gradients, and acceptable gradients for
305        An's zonal (x-z) test case (to be checked in)
306      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
307        (but these are screwed up by the thermodynamics in the first place);
308        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
309        output_adm.txt also reflects changes to seaice_lsr
310      - global_ocean.cs32x15:
311        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
312          (output_adm.seaice.txt was updated)
313        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
314          (output_adm.seaice_dynmix.txt)
315    o test-exp. exp4+stevens:
316      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
317    o pkg/seaice (lsr solver):
318      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
319        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
320      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
321      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
322        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
323      - compute (with new S/R) and print initial (+ free-driff sol. if available)
324        and final residual of linearised system.
325    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
326      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
327    o pkg/obcs: Stevens BCs (still only for east and west)
328      - fix Stevens BCs by using intermediate velocities of previous
329        time step as "baroclinic" contribution rather velocity of one grid cell
330        inside the boundaries; more consistent but makes the entire treatment
331        more complicated, requires new pickup files and two new S/Rs:
332        obcs_copy_uv_n and obcs_save_uv_n
333        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
334        (undefined by default)
335      - silently move computation of some grid factors into separate loops to
336        save some recomputations
337      - add a hack for non-linear free surface
338      - add a verification experiment to exp4 that tests this code
339    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
340    
341    checkpoint63d (2011/10/25)
342    o pkg/obcs + seaice-dynamics:
343      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
344        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
345        values (consistent with an implicit method).
346      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
347        return to older implementation (same results as before); note that none of
348        the "experimental" OBCS_SEAICE options are implemented in the new version.
349      - switch test exp. seaice_obcs to use new version (update output).
350    o pkg/seaice:
351      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
352      - add parenthesis in Water-Ice drag calculations (evp & lsr);
353      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
354        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
355      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
356        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
357    o pkg/layers:
358      - Include potential density as new coordinate (Thanks to David Munday)
359    o pkg/dic:
360      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
361        carbonate computation/output to CALC_PCO2_APPROX
362    o pkg/generic_advdiff
363      - make TAF generate code that vectorizes:
364        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
365    o model/src:
366      - improve vectorization also for adjoint code of
367        solve_tridiagonal and solve_pentadiagonal. As this requires up to
368        5 new 3D-fields, this code is only turned on for the combination of
369        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
370        for singular matrix check (only for TARGET_NEC_SX).
371      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
372        ALLOW_AUTODIFF. This flag now needs to be set outside of
373        solve_tri/pentadiagonal.F
374    o pkg/exf:
375      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
376        optional namelist EXF_NML_OBCS).
377      - add many debug-print (to trace down where pkg/cal error msg comes from)
378    o pkg/mom_vecinv/mom_vi_hdissip.F
379      - rearrange loops so that vectorization is improved and in particular
380        the adjoint routine vectorizes. The code is a little longer now, but I
381        think easier to read.
382        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
383    o pkg/seaice:
384      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
385    o pkg/exch2:
386      - alternative code (without tile x tile matrix) for cumulated (global) sum;
387        used as default; keep using matrix version in adjustment.cs-32x32x1.
388    o tools/build_options:
389      - after merging some MPI and/or multi-threads specific optfiles so that
390        the modified default optfile support both built (using genmake2 -mpi
391        for the MPI built, using genmake2 -omp for OpenMP built),
392        move now obsolete optfiles to tools/build_options/unsupported/
393       (add copy of email sent to support list in doc/optfiles_changes.txt)
394    
395    checkpoint63c (2011/09/28)
396    o pkg/ebm:
397      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
398        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
399    o pkg/seaice (SItracer pickup)
400    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
401      To be done:
402      - thorough testing of missing fields in S/R seaice_read_pickup
403      - thorough matching between generic tracers and specific fields used
404        (e.g. volume-weighted age, area-weighted age, salinity, ...)
405    o pkg/grdchk:
406      - all procs calculate and print finite-difference gradient (for testreport)
407      - change description output used by testreport;
408      - AD testing: also compare and report Finite-difference gradient;
409        => update all output_adm*.txt
410    o test exp. global_ocean_ebm:
411      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
412        and turn on exactConserve; update (fwd) output.
413    o pkg/seaice (LSR):
414      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
415      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
416        * identical results with non-CS topology (but save up to half of EXCH calls)
417        * no much changes in cs-32 verification tests since no ice at face edges
418         (differences due to convergence criteria, since nb of iterations changed)
419        * expect some differences on lat-lon-cap grid.
420        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
421    o pkg/exch2:
422      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
423        many tiles); until alternative coding is added, just add a stop.
424    o pkg/kpp:
425      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
426        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
427    o optfiles:
428      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
429        into corresponding standard one, which now support different build:
430        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
431      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
432    o pkg/obcs (seaice):
433      - add missing EXCH for uIce,vIce after applying OBCS;
434      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
435        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
436        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
437      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
438      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
439        and eedata.mth for MPI and mutlti-threaded testing.
440    o pkg/flt:
441      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
442      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
443      - fix pickup and trajectories + profiles output with multi-threads;
444      - add parameter to select group of fields to write along trajectory and
445        profile (default unchanged);
446      - only call PORT_RAND* function when flt_noise <> 0;
447      - add multi-threaded test for verification exp. flt_example.
448    o eesupp/src:
449      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
450      - USE_OMP_THREADING: check that number of threads (from eedata) matches
451        actual number (from env.var. setting).
452    o pkg/ebm:
453      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
454      - add multi-threaded test for verification exp. global_ocean_ebm
455    
456    checkpoint63b (2011/08/29)
457    o pkg/ebm:
458      - fix sign of runoff;
459      - update directly forcing fields (Qnet,EmPmR) to use standard
460        external_forcing_surf.F (remove ebm_forcing_surf.F);
461      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
462      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
463        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
464      - update global_ocean_ebm parameters file data and update output (fwd+ad).
465    o verification/matrix_example:
466      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
467        MPI and mutlti-threaded testing.
468    o pkg/matrix:
469      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
470      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
471      - fix for multi-threaded (remove DATA statement);
472      - use standard DIFFERENT_MULTIPLE function;
473      - add MATRIX_OPTIONS.h
474    o verification/matrix_example:
475       To allow to split the domain in several tiles, change the domain size
476        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
477        Western side) of land points.
478    o (*_)write_pickup:
479      - fix few bugs in mypackage_read/write_pickup.F
480      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
481        array of length 1 (was caught by compiler syntax-check).
482    o pkg/diagnostics (velocity potential solver):
483      - fix initialisation of main diagonal matrix (for overlap values)
484    o tools/build_options:
485      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
486        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
487      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
488        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
489        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
490        and use "-devel" testreport option for standard testing on baudelaire.
491    o pkg/grdchk:
492      - Assume that all gradient-check position are within the same tile
493        corresponding to global indices (iGloTile,jGloTile) and that
494        positions (i,j indices or nbeg) are local to this tile;
495      - set tile local-indices and proc. number according to tile global-indices;
496      - remove grdchkwhichproc from namelist (retired param);
497      - send adjoint gradient to all procs so that all procs print it to STDOUT;
498      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
499    o adding package bbl (Bottom Boundary Layer)
500      description in MITgcm/pkg/bbl/bbl_description.tex
501      example/test experiment in MITgcm_contrib/bbl
502    o adjoint verifications
503      - changed 5 experiments to multi-tiles
504        * global_ocean.90x40x15
505        * obcs_ctrl
506        * offline_exf_seaice
507        * tutorial_dic_adjoffline
508        * tutorial_tracer_adjsens
509        changed reference output for those that crossed tile boundaries
510        (changed choices of gradient check positions)
511      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
512      - temporary bug fix in grdchk_loc.F for obcs
513    o genmake2 & testreport
514      - add target "obj" (just for OBJFILES files) to Makefile;
515      - add option to specify FEXTRAFLAGS on command line.
516    o pkg/mypackage:
517      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
518    
519    checkpoint63a (2011/08/02)
520    o pkg/diagnostics (velocity potential):
521      - fix velocity-potential calculation when using OBCS: balance net inflow
522        at each level (new S/R OBCS_DIAG_BALANCE).
523      - fix some of the problems with OBCS in stream-function calculation.
524    o pkg/exf/exf_readparms.F
525      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
526        EXF_NML_OBCS) more consistent, so that you need not have these lists
527        in data.exf when they are not used.
528    o optim/optim_readdata.F:
529      - add some output about obcs variables that might help debugging
530      - add a check about nvarlength
531    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
532    o pkg/diagnostics (velocity potential):
533      - fix mask for OBCS (still problems in stream-function with OBCS);
534      - add specific parameter (default = main code CG2D params) for solver;
535      - in case of poor convergence, use solution corresponding to lowest residual.
536    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
537      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
538      and should be avoided where possible.
539    o model/src (rStar):
540      - include r* effect on reference-state (PhiRef) in totPhiHyd
541        (so that it's really the potential anomaly at the cell center);
542        affect solution only if z* with full pressure in EOS.
543      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
544        update output (because of z* in totPhiHyd and viscA4 changes);
545      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
546        @ constant r) until interpolation at constant r is implemented.
547    o pkg/diagnostics
548      - fix RCENTER diagnostics in case cell center is not at interface middle
549    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
550      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
551      that THETA and SALT are "conservative temperature" and "absolute
552      salinity"
553    o pkg/ctrl
554      - fix computation of endrec in s/r ctrl_init_rec
555      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
556    o pkg/seaice/seaice_growth.F
557      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
558        remove then obsolete STORE directives
559      - fix STORE directives for tice and tices, so that only the
560        appropriate part of the fields are stored (and not the entire
561        field); update global_ocean.cs32x15.seaice AD output.
562      - cosmetic changes: adjust CPP flags and indentation for better
563        legibilty
564    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
565      Chris Wilson)
566    o pkg/gmredi:
567       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
568       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
569    
570    checkpoint63  (2011/07/11)
571    o pkg/exch2:
572     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
573     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
574       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
575       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
576    o pkg/diagnostics:
577     - deal with pairs of post-processed diags which are computed together; in
578       particular, re-order list of diags within 1 file to save 2nd computation.
579     - add S/R to compute velocity stream-function (called after velocity-potential
580       calculation) from divergence free transport -> new diagnostics "PsiVEL".
581     - add parameter to select grid-point location where PsiVEL == 0.
582    o eesupp/src:
583       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
584       (specific S/R needed with exch2 topology - for now, just print an error msg)
585    o pkg/shelfice
586     - Implement friction velocity-dependent transfer coefficients following
587       Holland and Jenkins, JPO, 1999
588       Original code by M. Losch with small modifs.
589       Enable with CPP option SHI_ALLOW_GAMMAFRICT
590       and runtime flag SHELFICEuseGammaFrict
591    o verification lab_sea & global_ocean.cs32x15:
592     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
593       does not miss some dependencies (but is slower) and also works with many files
594       (default makedepend limitation for AD built).
595     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
596    o pkg/diagnostics:
597     - add run-time parameter "useMissingValue" (def=False) to fill land-point
598        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
599       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
600     - Extend the use of "missing_value" setting from data.diagnostics for the case
601       of counter-diagnostics (where fraction-weight is zero). This applies both to
602       MNC and MDS output files.
603    o pkg/seaice/seaice_growth.F:
604      - add 'a priori' cap of latent heat flux based on actual mass considerations
605        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
606        non-legacy seaice_solve4temp.
607      - add diagnostic of the residual sublimation freshwater flux (the freshwater
608        flux taken from the ocean if the total actual latent heat fluxes exceed
609        the maximum)
610      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
611       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
612      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
613       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
614      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
615      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
616    o verification 1D_ocean_ice_column:
617       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
618       update results
619    o pkg/diagnostics:
620     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
621       which are not filled-up but computed from other diags ; In this case, the mate
622       diag points to the primary (filled-up) diag to used for post processing.
623     - Update Velocity-potential computation using post-processed diag framework.
624     ==> Change the ordering of fields and time-periods in MDS output file
625       when using periodic averaging: now writes one time record with the full set
626       of fields for this time period, then the next time reccord (it used to be
627       one field with the full set of time records then the next field).
628         Note: this is now similar to NetCDF (MNC) output file. <==
629    
630    checkpoint62z (2011/06/21)
631    o adjoint monitor:
632     - Add adjoint monitor output for packages exf, seaice
633       and update relevant testreport output
634    o pkg/seaice:
635     - re-order diags inits so that they appear in order in available_diagnostics.log
636     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
637       area/heff/hsnow preceeding thermodynamic growth/melt.
638     - modified diag: SIdA; output actual effect, as the description states.
639     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
640     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
641       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
642        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
643     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
644     - added diagnostics for seaice generic tracers (SItr*).
645     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
646     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
647     I. Fenty: 18-Jun-2011:
648     Minor changes to seaice package:
649     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
650        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
651       - Differentiated "regularization variables" from "floor variables"
652        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
653        * hiceMin became SEAICE_hice_reg (old hiceMin)
654          (with _reg meaning regularization variable)
655       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
656        so as to ensure energy conservation when going between phases
657      - A22 was not used anywhere
658     2) Changed regularization procedure for heffActual and hsnowActual to ensure
659        well-boundedness and smooth adjoint in seaice_growth.F
660     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
661        because the old regularization always set heffActual >= 0.05 cm
662     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
663        on AREA when HEFF > 0.
664      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
665        requiring that DISABLE_AREA_FLOOR *not* be defined
666     Affected verifications:
667      - 1D_ocean_ice_column (output.txt output_adm.txt)
668      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
669    o pkg/diagnostics:
670      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
671      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
672        (was _RL, now integer) with option = 0 to retrieve all levels.
673      - add pieces of code to compute velocity potential at each level (new diagnostics
674        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
675        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
676      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
677        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
678        and in diagnostics_fract_fill.F (do not need a valid pointer for the
679        diagnostics counter-mate); check that definition of counter-diagnostic
680        includes a valid counter-mate (in diagnostics_set_levels.F).
681    o model/src (rStar):
682      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
683        affect solution only if z* with full pressure in EOS;
684        update output of test-exp global_ocean.90x40x15.
685    o pkg/seaice:
686      - introduce siEps=1e-5 parameter
687      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
688      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
689      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
690        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
691        as well as ice cover age and ridging index (attached to AREA).
692        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
693        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
694        Up to SItrMaxNum=3 tracers can be used simultaneously.
695    o pkg/salt_plume:
696      -introduce SPsalFRAC run time parameter that sets the fraction of the
697       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
698       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
699    o model debug options:
700      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
701        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
702      - Refine debug-msg printing selection (3 new levels):
703        debugMode  : controls printing of debug messages (sequence of S/R calls).
704        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
705         debLevZero =  0 ; /* level of disabled aux. msg printing */
706         debLevA =  1 ; /* level of minimum  aux. msg printing */
707         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
708         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
709         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
710         debLevE =  5 ; /* level of extensive debug printing */
711        New debugLevel default: with default debugMode value (=F),
712          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
713          and if debugMode=T, default debugLevel = 4 (debLevD).
714        Relation with previous settings:
715         debLevB (=2) corresponds to former debLevA (=1)
716         debLevD (=4) corresponds to former debLevB (=2)
717        Note:
718         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
719         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
720            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
721      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
722        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
723    o pkg/obcs:
724      - change OBCSfixTopo default from True to False (should not change the results);
725        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
726    o pkg/thsice:
727      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
728        2nd layer seaice sublimation (unlikely to happen)
729      - use Interior mask for OBCS in thsice_advection.F (similar to what is
730        done in gad_advection & seaice_advection).
731    o adjoint:
732      bug fix spotted by Gael Forget:
733      seaice_advection and thsice_advection still had
734      legacy CPP options to avoid CS corner updates for adjoint
735    o pkg/seaice:
736      => Change some of the defaults (2011/05/29):
737         - change SEAICEuseFluxForm default (from False to True)
738         - change DIFF1 default (from 0.004 m/s to 0. m/s)
739         And print warnings if DIFF1 is not set in data.seaice and centered
740          avection scheme is used without any diffusion.
741      also:
742      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
743      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
744      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
745        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
746        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
747      update results of test exp.:
748         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
749             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
750             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
751         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
752         seaice_obcs: output (SEAICEuseFluxForm=T)
753      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
754          for standard fwd & AD lab_sea tests (to keep the same output).
755    o pkg/seaice/seaice_growth.F:
756      - use Ian Fenty's capping formulas for actual ice
757      thickness thoughout EVOLUTION branch.
758      - put treatment pathological case #2) in CPP brackets
759      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
760      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
761    o pkg/seaice:
762      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
763      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
764      also pass fac as a param, which can be 1. (to update the tendency
765      field) or the time step (to update the field itself).
766      - seaice_advdiff.F: for multidim, call seaice_diffusion with
767      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
768      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
769      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
770      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
771    o pkg/seaice:
772      diffusion with centered advection scheme (diffus.F & advect.F):
773      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
774        to just compute the laplacian of input-field.
775      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
776      - fix flux-form version in diffus.F to conserve tracer.
777      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
778       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
779    
780    checkpoint62y (2011/05/26)
781    o pkg/seaice:
782     - seaice_growth.F : in EVOLUTION branch, always include
783       a_QSWbyATM_cover in qnet (as it should be).
784     - verification/global_ocean.cs32x15 : update results accordingly
785       (output.seaice.txt output_adm.seaice.txt).
786    o pkg/seaice + obcs:
787     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
788       equivalent of assuming no tracer gradient outside the OB region.
789       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
790     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
791       after changes above);
792     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
793       only at OB location (instead of over a band of OLx width).
794    o pkg/seaice:
795     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
796       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
797    o pkg/obcs:
798      - split header file "OBCS.h" into 4 separated files:
799        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
800       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
801         (contain no conditional statement which depends on OBCS options).
802      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
803        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
804    o ctrl, cost, grdchk & autodiff pkgs:
805      - make options file more standard (like other {PKG}_OPTIONS.h file but
806        with AD_CONFIG.h); clean-up some of the included header files.
807    o pkg/obcs:
808      - do not mask tracer when applying OB (tracer == 0 could generate problems)
809      - apply tracer OB values to tracer field only at OB location (instead of
810        over a band of OLx width)
811      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
812      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
813        obcs_apply_tloc.F & obcs_apply_sloc.F
814    o obcs in model/src:
815      - call OBCS_APPLY_W only if NonHydrostatic.
816      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
817      - reset dEtaHdt and wVel to zero outside OB interior region ;
818      - leave tracer unchanged outside OB interior region: This has no effect
819        on the solution but just to prevent unrealistic tracer value outside OB.
820      - zero out velocity outside OB interior region: This has no effect on
821        the solution but just to prevent unrealistic velocity outside OB.
822    o obcs and non-lin free-surf:
823       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
824       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
825       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
826       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
827       update results of test-exp. exp4(nlfs).
828    o exp4 (nlfs) test-exp:
829       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
830       with NonLin-FreeSurf); update output.nlfs.txt
831    o obcs and 2d/3d solver norm:
832       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
833       and outside OB interior region (will allow to place OB further inside the
834       domain). Depending on the domain, can affects cg2d-Norm (previous
835       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
836       and cg3d-Norm (previous Norm was computed before canceling OB terms),
837       e.g. in tutorial_plume_on_slope.
838      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
839    o pkg rbcs:
840      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
841      - add capability to apply relaxation to horizontal velocity uVel & vVel.
842    o pkg/grdchk: add gradient check for control variable xx_shifwflx
843    o pkg/shelfice/shelfice_init_fixed.F
844      fix CPP-flag combinations
845    o pkg/seaice: Merge iceage code of Pierre Rampal
846      * update/change/correct ice age calculations
847      * add age updates for pathological cases
848      Probably needs more testing...
849    
850    checkpoint62x (2011/05/13)
851    o pkg/mom_vecinv:
852       high-order vorticity scheme: use interior masks (maskInW & S)
853       to zero-out (outside OB) gradient of vorticity.
854    o verification exp.:
855       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
856       hs94.128x64x5 and seaice_obcs ; update results.
857    o pkg/obcs:
858      fix bug in OBeta for YZ sections in obcs_exf_load.F
859    o pkg/ctrl, pkg/shelfice, and optim:
860      - add new control variable xx_shifwflx (fresh water flux underneath ice
861        shelves). This is almost as tedious as obcs-ctrl, because the
862        variables needs its own mask.
863      - add a cost function term that penalizes the deviation of xx_shifwflx
864        from the first guess (zero) in analogy to other control variables
865    o pkg/shelfice:
866      - start basic adjoint
867    o pkg/ctrl:
868      - remove extra 2D field "for good measure" when initializing in
869        ctrl_set_globfld_[xy/xz/yz].F
870      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
871      - improve error messages in ctrl_set_unpack_*
872    o OBC implementation in momentum:
873       use interior masks (maskInC,W & S) in momentum S/R:
874       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
875       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
876       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
877       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
878       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
879        (and also with Leith/Smagorinsky harmonic-viscosity).
880       Update output of experiment dome and exp4 (+nlfs).
881    o exp4 test-exp:
882      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
883        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
884        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
885        time-varying OB at Western-side for wVel (NonHyd); update output.
886      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
887        and biharmonic-viscosity ; also use prescribed time varying OB.
888    o pkg/obcs:
889      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
890    o model/src:
891      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
892      - initialise startTime & nIter0 with unlikely values: allows to set one
893        from the other without ambiguity.
894    o seaice_obcs test-exp.:
895      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
896    o pkg/obcs:
897      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
898        no longer needed with maskInC,W,S in pkg/generic_advdiff.
899    o pkg/seaice:
900      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
901        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
902      - fixed bug in the initialization of sea ice salinity variable HSALT
903        in seaice_init_varia.F  (removed dependence on ICE2WATR)
904    o fizhi-cs test exp.:
905       switch reference output convention for these 2 non-standard test-exp,
906        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
907          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
908       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
909    o model/inc:
910      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
911        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
912    o pkg/seaice:
913      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
914    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
915      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
916        and initial HSALT
917    
918    checkpoint62w (2011/04/26)
919    o pkg/mom_fluxform:
920      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
921      - use parameter "sideDragFactor" in no-slip BC side-drag part.
922      - update output of exp. global_ocean.90x40x15
923    o pkg/mom_vecinv:
924      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
925    o update seaice exp.:
926      use more consistent parameter values (remove "backward compatability only":
927       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
928      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
929       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
930    o update test-exp global_ocean.90x40x15:
931      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
932      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
933      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
934      o turn on zStar & viscA4 in standard set-up (dir input/)
935        and update output files: output.txt & output.dwnslp.txt
936    o new AD-test experiment: obcs_ctrl
937      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
938    o pkg/dic:
939      fix two bugs in handling water vapour pressure in carbonate chemistry
940      and air-sea fluxes. Found by Val Bennington and Galen McKinley
941      (add DIC Option = WATERVAP_BUG to recover old results)
942      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
943    o adding allowInteriorFreezing option to check for water below freezing point
944      at depth and bring the negative heat anomaly to the surface level
945    o pkgs _fields_load:
946      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
947      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
948        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
949        rbcs to get interpolation weights and time reccord number.
950      - fix multi-threading in aim_fields_load.F
951      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
952    o external_fields_load:
953      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
954       interpolation weights) to use in a periodic time-series ; do not divide by
955       time-step to convert to integer:
956       - this fixes case where externForcingPeriod is not multiple of time-step
957          (Thanks to Christopher L. Wolfe)
958       - this fixes case where externForcingPeriod is an odd multiple of time-step
959         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
960      store index of time-record which is currently loaded:
961       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
962       - needed for the adjoint but not yet used because of extensive recomputations;
963         (to be fixed soon)
964    
965    checkpoint62v (2011/04/02)
966    o verification/1D_ocean_ice_column added to test Ian Fenty's
967      pkg/seaice_growth.F modifications for improving sea ice code differentiability
968    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
969      (new velocity statistics after changing maskInW & maskInS definition)
970    o pkg/generic_advdiff with OBCS:
971      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
972      equivalent to assumption of no tracer gradient outside the OB region.
973      This will affect the results if using obcs+biharmonic diffusion.
974      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
975    o pkg/obcs:
976      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
977      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
978      in Interior region. No impact on solution but affects Velocity monitor stats.
979    o pkg/ptracers (adjoint)
980      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
981      tape file for each tracer
982    o model/inc/src and pkg/autodiff: add parameters that allow to turn
983      of parts of the adjoint code at run time. For now, there are only
984      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
985      parameters are set in data.pkg.
986      This is the lazy coward's version of doing this, but still useful for
987      debugging. In order to do it right, everything needs to be moved to
988      pkg/autodiff.
989    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
990      the end; this fixes the adjoint balancing code for open boundaries.
991    o pkg/ctrl:
992      - change behavior of xx_${varname}period to be analogous to exf-conventions:
993        xx_${varname}period =   0.,  means time-independent control part
994        xx_${varname}period = -12., means one-year-periodic monthly control part
995      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
996        clean up ctrl_init a little, remove unused variables
997      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
998      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
999    
1000    checkpoint62u (2011/03/15)
1001    o model/src:
1002      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
1003        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
1004      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
1005        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
1006    o pkg/ctrl/obcs/ecco:
1007      - remove obsolete, unused, and partially broken code:
1008        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
1009        ALLOW_CTRL_OBCS_BALANCE
1010      - put a stop statement into ecco/cost_obcsvol.F, but also add
1011        cost_obcsvol to ecco_ad_diff.list
1012    o pkg/ecco: fix counting cost function contributions for obcs (code
1013      by Matt M.) and diffkr for diagnostics
1014    o pkg/ecco, pkg/ctrl, pkg/grdchk:
1015      add cost penalty terms for initial uvel, vvel, eta controls
1016      and I/O for prior error files
1017    o pkg/mdsio:
1018       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
1019       (new argument) to check for tiled file in mdsioLocalDir : this fix the
1020       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
1021    o pkg/ctrl:
1022     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
1023       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
1024       unused and superfluous variables
1025     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
1026    o pkg/ecco
1027     - enable adjoint of Stevens OB
1028    o pkg/ctrl/ecco/grdchk:
1029      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
1030        Fortunately, we do not have any tests for the numerous cpp-flagged
1031        option of "obcs as control parameters" so we will never know
1032        if this is an improvement (but at least now things compile).
1033      - remove an obsolete initialization from ecco_cost_init_barfiles.F
1034      - fix some problems within never used ifdefs to make the code compile
1035    o pkg/obcs:
1036     - Refine Interior mask definition to work with more complex OB (e.g.
1037       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
1038       read in Interior mask from file. Check if Interior mask is consistent
1039       with OB list of indices.
1040    o pkg/seaice
1041     - beginning code for a seaice tracer package,
1042       but currently only used for seaice age: SEAICE_AGE
1043       SEAICE_num = 4
1044       iTracer = 1: area-weighted ice age
1045               = 2: volume-weighted ice age
1046               = 3, 4: template for one-year vs. multi-year ice
1047       data.seaice has new namelist SEAICE_PARM03 for arrays related to
1048       SEAICE_num
1049    
1050    checkpoint62t (2011/03/05)
1051    o pkg/obcs:
1052     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
1053       then normal component. This ensures that the normal component is set
1054       correctly even when it conficts with tangential setting from an other OB.
1055       Affects results of test-experiment seaice_obcs: update the output.txt
1056    o pkg/obcs:
1057     - add code to monitor statistics of dynamical fields at OB.
1058     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
1059       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
1060       - change default: balance the Net inflow through all OB (instead of balancing
1061         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
1062     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
1063       to match Nortern OB inflow (OBCS_balanceFacN=0).
1064    o pkg/seaice:
1065     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
1066    o pkg/seaice (seaice_growth v 1.113):
1067     - reverting seaice_growth to v 1.111 in order to have code with exact bit
1068       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
1069       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
1070       runtime flag SEAICEareaFormula is kept but is inactive
1071    o model/src:
1072     - add new param to scale curvilinear grid distance and area when using
1073       a different sphere radius from the grid-files.
1074     - test/check multi-threads EXCH applied to local variable (cg2d_x)
1075    o adjoint:
1076     - enable adjoint of Stevens OB
1077     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
1078       (a bit delicate because of potentially modified adj. common block structure;
1079       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
1080    
1081    checkpoint62s (2011/02/15)
1082    o pkg/seaice (seaice_growth v 1.112):
1083     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
1084       computing the ice cover tendency from effective thickness tendencies. Include
1085       Ian Fenty's formula.
1086     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
1087       SEAICEareaFormula.
1088     - simplify notations for the various d_HEFF/d_AREA terms.
1089    o pkg/gmredi:
1090     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
1091       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
1092       add a verification test-run (front_relax.bvp) to test GM_useBVP.
1093    o pkg/seaice (seaice_growth v 1.111):
1094     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
1095     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
1096       also melt ice.
1097    o pkg/seaice:
1098     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
1099     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
1100    o pkg/cheapaml:
1101     - from Nico Wienders: New version of this package.
1102    o pkg/flt:
1103     - add CPP options to prevent floats to re-enter the opposite side of
1104       a periodic domain (default: keep periodicity)
1105    o pkg/gmredi:
1106     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
1107       (needed for multi-dim advection).
1108     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
1109    o model/src:
1110     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
1111    o tutorial_tracer_adjsens
1112     - extend to NLFS and replace maskC by hFacC
1113       (change reference output accordingly)
1114    
1115    checkpoint62r (2011/01/24)
1116    o testreport:
1117     - add option -deloutp (-do) to remove output file after successful run
1118     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
1119       extract exact list of procs from this file ; adjust COMMAND by
1120       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
1121    o pkg/ecco: replace old ineffective way of penalizing deviations from
1122      first guess (of obcs) with code by Matt Mazloff
1123    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
1124      exf/cal
1125      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
1126        and handle case of obcs?period == 0
1127        Not affected by these changes: There is still an inconsistency in
1128        the computation of start/endrec for the obcs variables for ALLOW_CAL
1129        defined (see comment by Menemenlis, 7-Mar-2003)
1130      - make S/R ctrl_get_gen_rec return something meaningful even if
1131        ALLOW_CAL is not defined
1132      - ctrl_getobcs?: simplify code so that it does not need to use
1133                       S/R exf_swapfields
1134    o testreport:
1135       allow to test MPI with different number of processors for each experiment:
1136       create file "SIZE.h.mpi" in each build dir.
1137       Note: update of "-command" argument not yet implemented.
1138    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
1139      alleviate the need for additional 3D tapes when using
1140      the non-inear free surface in the adjoint. This is done
1141      by adding an 'update' of hfacc etc. to their current
1142      value at the beginning of forward_step.F.
1143    o pkg/seaice
1144      seaice_lsr: move stress-divergence computations out of outer pseudo-
1145      timestepping loop
1146    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
1147      up, so that the calls of the ctrl_* subroutines are really at the end
1148      of the routine.
1149    o pkg/gmredi:
1150      allow to specify a 2-D horizontal map and a 1-D vertical profil
1151      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
1152    o pkg/seaice:
1153      move lsr iterations from seaice_dynsolver to seaice_lsr.
1154    o pkg/seaice:
1155      reduce memory footprint of seaice mutldim advection tapes,
1156      by using a 2D tape independent of the generic_advdiff ones,
1157      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
1158    
1159    checkpoint62q (2010/12/29)
1160    o model/src:
1161      - check horizontal grid-spacing for unset or zero/negative values.
1162      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
1163    o pkg/flt:
1164      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
1165      - precision of input and output files set according to readBinaryPrec
1166        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
1167      - initial float position from tiled file was not converted to index space
1168        (looks like a bug): fixed to make it similar to initial pos. global file.
1169    o global_ocean.cs32x15:
1170       change SIZE.h of AD set-up to get same tiling as with MPI.
1171       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
1172    o model/src:
1173       add flag to control printing of domain fields (bathymetry, hFac ...) in
1174       ini_mask_etc (call to plot_fieds_xy*).
1175    o pkg/thsice:
1176       if useEXF, some forcing fields are not valid in overlap: fixed by computing
1177       over the interior only + apply EXCH at the end (like with SEAICE advection).
1178    o pkg/mdsio:
1179      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
1180        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
1181      - change barrier call for safe multi-threads access to 3-D shared buffer.
1182      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
1183      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
1184        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
1185    o pkg/flt:
1186      - add fourth-order Runge-Kutta integration
1187      - add basic exch2 support (only 1 facet supported so far!)
1188    o pkg/mdsio+rw:
1189      new S/R to read local (or tile independent) vector (read counterpart of
1190       mds_writevec_loc, and front-end write_glvec_rl/rs).
1191    o global_ocean.cs32x15: additional input_ad.seaice experiment
1192        that uses pkg/seaice rather than pkg/thsice.
1193        (using multidim advection for seaice)
1194    o towards more F95 syntax for array specification in namelist:
1195      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
1196        of all verification experiments.
1197           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
1198          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
1199      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
1200    o global_ocean.cs32x15: additional input.seaice experiment
1201        that uses pkg/seaice rather than pkg/thsice.
1202    
1203    checkpoint62p (2010/12/17)
1204    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
1205        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
1206    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
1207        allow for use of multim. advection in seaice adjoint.
1208    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
1209      - first attempt to close budgets by taking into account the freshwater
1210        flux implied by the sublimation of snow and ice. So far only the
1211        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
1212        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
1213    o eesupp/src:
1214      new S/R with new option (NML_EXTENDED_F77) to change array specification
1215      from F95 standard to commonly accepted extended F77 form.
1216      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
1217      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
1218      for less tolerant f77 compiler (e.g., pgf77, g77).
1219    o globalFiles:
1220      commented out in parameter file "data" since it's not safe with MPI
1221      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
1222      in this case); no longer commented out in restart test (tst_2+2).
1223    o add adTapeDir to specify a special directory where adjoint tapes are
1224      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
1225      and cannot be used together with mdsioLocalDir.
1226    o nesting pkgs:
1227      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
1228      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
1229      - add parameter files + utils dir + output from short run on beagle.
1230    o pkg/seaice:
1231        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
1232    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
1233      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
1234    
1235    checkpoint62o (2010/11/25)
1236    o pkg/exf:
1237      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
1238    o pkg/seaice:
1239      - seaice_ocean_stress: split a loop for better vectorization of the
1240        adjoint code
1241      - seaice_growth.F: fix bug in conservation of freshwater connected to
1242        capping of heff, put contribution into d_HEFFbyNEG
1243      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
1244        by something more sensible (parameters that are what their name implies)
1245      - change some defaults, so that by default exf-parameters are used for
1246        things like rhoAir, cpAir,latent/sensible heat parameters, in order
1247        to reproduce the old results, many data.seaice now contain funny values
1248        for cpAir and latent heat of sublimation
1249    o packages_readparms.F: move exf_readparms up in line so that
1250        exf-parameters are visible for other packages (e.g. seaice)
1251    o debugMode & debugLevel=2:
1252      - differentiate between debugMode & debugLevel=2:
1253        debugMode: controls printing of debug messages (sequence of S/R calls).
1254        debugLevel: controls printing of algorithm intermediate results and stats.
1255      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
1256        => allows to print debug-stats without all sequence of call messages.
1257      - switch control of debug print from debugLevel to debugMode in many S/R.
1258    o pkg/obcs (obcs-sponge):
1259        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
1260        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
1261    o pkg/generic_advdiff:
1262      - record overlap minimum size for each advection scheme;
1263      - refine criteria on overlap minimum size;
1264      - check and stop (in gad_check) if overlap size is too small.
1265    o pkg/obcs:
1266      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
1267        once, in ptracers_implicit.F)
1268      - with seaice: remove test on empty file name in obcs_apply_seaice (always
1269        apply OB values when tile has OB)
1270    o model/src, coriolis setting:
1271      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
1272        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
1273        files (selectCoriMap=3) with any grid.
1274      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
1275    o pkg/seaice/seaice_growth.F:
1276        a few cosmetic changes that reduce the number of lines of code
1277    o pkg/obcs: add boundary conditions following Stevens (1990)
1278      - the code follows old MOM/NAOSIM code
1279      - so far it is only implemented for the eastern and western boundaries
1280        and NOT for pTracers
1281    o pkg/rbcs:
1282      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
1283        beginning of the first rbcs forcing period.
1284      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
1285        offline package, i.e., one file per time, labeled by iteration number;
1286        deltaTrbcs sets the timestep with which the data was generated;
1287        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
1288      - rbcsForcingCycle=0 makes forcing non-cyclic.
1289      - make arithmetic safe for negative times and odd forcing periods.
1290    
1291    checkpoint62n (2010/11/09)
1292    o pkg/seaice:
1293        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
1294    o pkg/obcs:
1295       New S/R to copy tracer value from the OB location to narrow band region
1296        (width = same as overlap) beyond the OB: preserve OB value (needed for
1297        high-order scheme) which were overwritten by EXCH call if in overlap
1298        region. Applied to theta, salt, ptracer and advected seaice variables.
1299       With seaice: use maskInC in similar way as in gad_advection.F,
1300        in seaice_advection.F and advect.F.
1301       Update output of experiment seaice_obcs and change exp4 to test OBCS with
1302        4th order Adv.Scheme. for pasive salt and ptracer.
1303    o tools/genmake2:
1304      - when looking for an optfile (not specified), only search for Fortran compiler
1305        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
1306      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
1307        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
1308      - set default for CPP to "cpp -traditional -P" (was the case without specifying
1309        an optfile, but otherwise default was just "cpp".
1310      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
1311      - when "CC" is not set in the optfile, look for possible C compiler
1312        (instead of just setting CC=cc)
1313      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
1314        => add a ".F" to ".o" rule for source files with no "#include" (such as
1315           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
1316      - move gfortran before g77 in list of possible Fortran compiler (consistent
1317        with reference compiler switch from g77 to gfortran)
1318    o pkg/seaice:
1319      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
1320        seaice_check that stops the model, when the CPP flag is used.
1321      o seaice_growth.F: make capping of ice volume conserving by returning the
1322        capped ice as freshwater to EmPmR. This does not change the verification
1323        experiments but will change runs where the capping is acutally active
1324    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
1325      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
1326         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
1327         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
1328    o tools/genmake2:
1329      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
1330      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
1331      - clean previous genmake log files before anything else.
1332      - change Makefile to remove testreport log files (*.tr_log) and genmake log
1333        files only with "CLEAN" target (instead of "Clean");
1334    o pkg/generic_advdiff:
1335      Change OBCS in multiDim advection (gad_advection.F):
1336       Use maskInC to prevent intermediate update of tracer-field in OB regions,
1337       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
1338       which were applying future time-step OB values.
1339      This way, all explicit calculations use current-time-step OB values
1340       (simpler and more consistent).
1341      Affects results when set-up uses time-varying OBC and multi-dim advection;
1342       update output of experiment seaice_obcs.
1343    o pkg/seaice:
1344      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
1345       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
1346         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
1347      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
1348       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
1349       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
1350    o pkg aim (2010/10/26):
1351      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
1352        formulation with obliquity, eccentricity, ... as run-time parameters,
1353      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
1354        upward shortwave radition at the surface (all-sky and clear-sky).
1355    o pkg/obcs:
1356      - writing sections with globalFiles=T does not work: switch to tiled-files
1357        when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
1358      - fix index bug (OB_Ie -> OB_Iw_) in obcs_apply_uvice.F
1359      - apply OBCS_SEAICE_COMPUTE_UVICE to both uice and vice at all obcs
1360    
1361    checkpoint62m (2010/10/21)
1362    o pkg/seaice: vectorize seaice_solve4temp.F
1363      - move iterations loops outside of i/j-loops
1364      - requires 2D arrays for TB and effConduct
1365      - add 2D iceOrNot to replace HICE_ACTUAL.GT.0, as HICE_ACTUAL is
1366        modified in this routine
1367      - a little bit of clean up, adjusting indentation, etc.
1368      - replaced a few TEN**a by exp(a*log(10.)) in new code for better
1369        performance and '**TWO' by '**2' (because TWO is a float),
1370        replaced ONE, ZERO
1371    o eesupp/src:
1372       fix flow dir for exch1_z_RX_cube, exch1_uv_RX_cube & exch1_bg_RX_cube
1373    o pkg/seaice/seaice_growth.F
1374      Revision 1.89 of seaice_growth.F completes the overall october 2010 revision and
1375      merging process. The merged routine has two branches, and one activates the 'evolution'
1376      branch by setting SEAICE_GROWTH_LEGACY to undef (at the top of the routine for now).
1377      In summary, here is what the '10/10 revision' did consist of
1378        part 1: seaice_growth.F revisions 1.71 to 1.75
1379          - Preliminary seaice_growth.F clean-up, keeping test results strictly unchanged.
1380            The emphasis here was on improving readability (e.g. by trying to use meaningful
1381            variable names) and modularity (e.g. by adding arrays to store heff etc. updates).
1382        part 1.5:
1383          - revising the lab_sea experiment to make it a more useful (i.e. stable
1384            and representative of an actual model run). This was done by generating a
1385            (winter) pickup to start from, switching back the main experiment dynamic
1386            solver from evp to lsr, having one of the experiments use the free drift solution.
1387        part 2: seaice_growth.F revisions 1.76 to 1.85
1388          - Sorting out hard-coded constants that prevented heat and fresh water conservation.
1389          - Sorting out the various fields units and sign (set early on and reset at the end)
1390            to avoid numerous scalings/re-scalings. By v1.85 the basic unit for ice, heat and
1391            fresh water stock is 'effective ice meters', and >0 implies more ice/snow.
1392          - Using tendency terms arrays (d_HEFF* etc.) to alleviate remaining code locks,
1393            and simplifying logical expressions to further improve readibility.
1394        part 3: seaice_growth.F revisions 1.86 to 1.89
1395          - Re-organize the blocks of code more logically.
1396          - Merging the '_if.F' pieces that add something new.
1397    o pkg/thsice:
1398      - vectorize thsice_solve4temp and thsice_get_exf.
1399        Problem: thsice_solve4temp has an unvectorizable statement that
1400        might also be problematic for TAF
1401      - thsice_get_exf: add the ALLOW_BULK_LARGEYEAGER04 CPP-flag. This
1402        does not change the verifcation experiment, but will change all
1403        experiments that have this flag undefined (not tested in verification);
1404        a little reorganization to save a few 2D fields and recomputations
1405      - 1st step of revisiting thsice adjoint (major recomp. sorted out)
1406      - 2nd step:  fix some store dirs
1407        o seems to work somewhat, i.e. using ifort but not g77
1408        o likely cause are incomplete init. or recomputation
1409        o start verification/global_ocean.cs32x15/input_ad.thsice
1410    o pkg/obcs: add support for exch2
1411      - the position of the boundary and prescribed values are specified using
1412        a global domain with exch2 facets stacked
1413        - in x for N,S boundaries (like W2_mapIO=-1)
1414        - in y for E,W boundaries (so E,W boundaries do not overlap)
1415    o pkg/mdsio: add support for writing global sections with exch2
1416        file layout is as for obcs described above:
1417        - for x-z sections, facets are stacked in x (like W2_mapIO=-1)
1418        - for y-z sections, facets are stacked in y
1419    o pkg/thsice:
1420       - change a few routines for better vectorization: thsice_albedo.F,
1421         thsice_step_temp.F, and in thsice_calc_thickn.F. Results are
1422         not affected, but in particular the latter routine has changed
1423         dramatically (not necessarily easier to read now).
1424       - re-arrange calculation in THSICE_SOLVE4TEMP: move outside of i,j loops
1425       iteration loop and call to S/R THSICE_GET_BULKF & THSICE_GET_EXF.
1426    o verification/lab_sea:
1427      - overhaul of the forward model experiments. The main motivation
1428        for this revision is that lab_sea has proven quite fragile (when
1429        changing the sea-ice code, and switching platforms) to a point
1430        when failures were very hard to attribute to specific code problems.
1431      - the suspected reason for this fragility is noise amplification by evp so,
1432        to start with, we decided to replace evp with lsr in the main experiment.
1433      - the input.lsr experiment thus became obsolete and was removed.
1434      - it was replaced with the input.fd experiment that uses an
1435        analytical "free drift" solution as the ice velocity field.
1436      - Taken together, input (lsr), input.fd (free drift) and input.hb87 (evp)
1437        will hopefully allow us to discriminate problems due to dynamic solvers
1438        from problems due to the thermodynamic code. input.salt_plume (lsr) allows
1439        us to test additional options, along with the salt plume package.
1440      - Finally a pickup was generated (at the end of a one year run) to
1441        make the tests more representative of an actual model run. Previously
1442        the tests starting point was a 1m thickness of ice everywhere.
1443    o pkg/seaice:
1444      - introducing S\R seaice_freedrift.F that compute the
1445        analytical solution to an approximate ice momentum
1446        equation (i.e. the simple stress/coriolis balance).
1447      - define SEAICE_ALLOW_FREEDRIFT to trigger the computation
1448        of the free drift velocity field, and enable its use.
1449        To actually use the free drift solution as the model ice
1450        velocity field set SEAICEuseFREEDRIFT to .TRUE. in data.seaice.
1451    o move "useOASIS" from PARAMS.h to EEPARAMS.h and read it from "eedata"
1452    
1453    checkpoint62l (2010/10/04)
1454    o pkg/seaice:
1455      -fix the USE_ORIGINAL_SBI version (for variable freezing point);
1456      -use "celsius2K" in SEAICE_VARIABLE_FREEZING_POINT and in new
1457       version (with USE_ORIGINAL_SBI undef);
1458    o add hooks for new packages OASIS, the package will follow
1459      (hooks exclude the seaice pkg for now)
1460    o pkg/autodiff: ALLOW_AUTODIFF_WHTAPEIO
1461      Option to use mdsio_read_whalos.F/mdsio_write_whalos.F,
1462      rather than mdsio_readvector.F/mdsio_writevector.F, within
1463      adread_adwrite.F to read/write adjoint-related tapes to disk.
1464    o eesupp and pkg/mdsio: ALLOW_WHIO
1465      Option to write/read 2D fields to files including tiles halos.
1466      The main purpose is for adjoint related "tape I/O".
1467      The secondary purpose is for debugging phases.
1468      A word on those rather specifically intended purposes.
1469      The code was meant to be stripped down to the bare minimum.
1470      Typically, there is a unique and basic mapping to the global
1471      buffer (tile by tile, then proc by proc, then level by level), and
1472      byteswaps and meta-files are omitted. Indeed the (*_WH*) code is not
1473      meant to generate user friendly outputs of various shapes and forms.
1474      Rather it is intended, for the knowledgeabale developers,
1475      to be largely independent of the many mdsio options, to allow
1476      outputs of tiles+halos in debugging phases and in adjoint runs,
1477      and to allow some flexibility in tuning (adoint) I/O depending on each
1478      file system behavior. With regard to tuning, most of the potential knobs
1479      (to leave files open, to allocate the I/O indep. of usesinglecpuio,
1480      to specify directories, to specify the typical size of I/O calls, etc.)
1481      are not yet included, and will be added if they prove useful.
1482    o pkg/seaice:
1483       fix uninitialised arrays in USE_ORIGINAL_SBI version of seaice_solve4temp.F
1484    o pkg/seaice:
1485       new S/R seaice_solve4temp.F: this is the merged version of Ian Fenty
1486       code (seaice_budget_ice_if.F) which enable to recover old standard
1487       code (seaice_budget_ice.F) when option USE_ORIGINAL_SBI is defined.
1488       temporary: add "#define USE_ORIGINAL_SBI" at the top of seaice_solve4temp.F.
1489    o model/src (rStar):
1490       use simple average (not area weighted) of rStarFac at U,V point when using
1491       vectorInvariant and selectKEscheme=1,3 (consistent with mom. vertical advection)
1492       update output of exp. fizhi-cs-32x32x40 and fizhi-cs-aqualev20.
1493    
1494    checkpoint62k (2010/09/17)
1495    o adjoint
1496       * changed verification/global_ocean.cs32x15 ; adjoint now tests
1497         Adams-Bashforth 3 + NLFS + RSTAR
1498       * some more modifs required for ECCO-GODAE v4
1499    o pkg/seaice
1500       add SEAICE_AGE_VOL option to use volume instead of area for
1501       integrating SEAICE_AGE
1502  o model/src:  o model/src:
1503     first check-in of sigma & hybrid-sigma coordinate code ; also includes     first check-in of sigma & hybrid-sigma coordinate code ; also includes
1504     non-linear free-surface parts ; but pressure-gradient not yet coded.     non-linear free-surface parts ; but pressure-gradient not yet coded.
# Line 273  o tools/build_options: Line 1768  o tools/build_options:
1768      but keep the former optfile for few weeks for smooth transition      but keep the former optfile for few weeks for smooth transition
1769  o pkg/ecco  o pkg/ecco
1770    - allow user defined cost function contributions    - allow user defined cost function contributions
1771          CPP: ALLOW_USERCOST_CONTRIBUTION       CPP: ALLOW_USERCOST_CONTRIBUTION
1772          USAGE: compute contributions in cost_usercost_all.F       USAGE: compute contributions in cost_usercost_all.F
1773    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
1774        the two options are complementary.        the two options are complementary.
1775  o pkg/smooth  o pkg/smooth

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