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revision 1.1321 by dimitri, Wed Oct 27 05:48:33 2010 UTC revision 1.1584 by mlosch, Mon Jan 30 15:30:50 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/seaice/seaice_growth.F: add mask to avoid non-zero ice thickness
8      over land (non-legacy code)
9    o vectorize salt_plume package:
10      - add extra code to salt_plume_frac and salt_plume_tendency_apply_s
11      - this code computes plumebk everywhere (also over land), thus requires
12        code to avoid divisions by zero and catch the case of kLev=Nr.
13      - efficiency of salt_plume_frac is still sub-optimal
14    o tools (genmake2):
15      - fix makefile NAME specification (option: -makefile NAME) by adding
16        "-f $MAKEFILE" in few places where it was missing including makedepend
17        command (contribution from Paul).
18    
19    checkpoint63i (2012/01/24)
20    o model/src:
21      - add factorized versions of some EOS code to find_rho.F,
22        define USE_FACTORIZED_EOS to turn it on (default for TARGET_NEC_SX)
23    o model/src:
24      - add celsius2K to namelist PARM01; remove unused recip_rhoNil from PARAMS.h;
25      - change default celsius2K from 273.16 to 273.15
26      - to keep results unchanged, add back old value of celsius2K in verification
27        exp. input*/data : aim.5l_cs, 1D_ocean_ice_column, lab_sea (fwd),
28         global_ocean.cs32x15(seaice) & cpl_aim+ocn(input_atm).
29    o model/src: add a little initialisation trick to find_rho.F and find_alpha.F
30      to make TAF generate vectorizable code
31    o pkg/seaice/seaice_evp.F: add code (copied from CICE) that avoids underflows.
32       Turn on by defining SEAICE_EVP_ELIMINATE_UNDERFLOWS. Most compilers
33       have flags that do this more efficiently.
34    o pkg/diagnostics/diagstats_calc.F
35      - for TARGET_NEC_SX fix the treatment of the scaling factor tmpFac=scaleFact
36    o pkg/obcs (with exch2):
37      - derive OB indices in overlap region from OB-InsideMask (in obcs_init_fixed.F)
38        and remove code (in obcs_readparms.F) which was based on EXCH of indices
39        (through buffer) and did not account for exch2 (e.g., CS-grid) topology.
40    o pkg/exf and seaice exp:
41      - change offline_exf_seaice.seaicetd test exp. to use default DIFF1 value (=0)
42        so that switching off area & heff advection flags does not affect results.
43      - change default EXF_LWDOWN_WITH_EMISSIVITY to #define in EXF_OPTIONS.h
44      - keep exp. seaice_obcs & 1D_ocean_ice_column(ad) unchanged (using #undef
45        EXF_LWDOWN_WITH_EMISSIVITY) and, using pkg/exf default emissivities, update
46        results of verification experiments: 1D_ocean_ice_column(fwd),
47        global_ocean.cs32x15.seaice(fwd+ad) & seaice_dynmix(ad), lab_sea (all 8)
48        and offline_exf_seaice (all 4).
49    o pkg/seaice:
50      - remove array YNEG, RIVER, TMIX (replaced by local var) from common block;
51        remove also areaNm1 & hEffNm1 when SEAICE_GROWTH_LEGACY is undef.
52      - fix bug: areaNm1 & hEffNm1 are needed in seaice_growth (SEAICE_GROWTH_LEGACY)
53        but were not filled when resp. SEAICEadvArea=F & SEAICEadvHeff=F and
54        not multi-dim advection;
55      - fix seaice_growth.F to compile with both SEAICE_GROWTH_LEGACY and
56        SHORTWAVE_HEATING #undef.
57    o optim: make Makefile more robust (?)
58    o pkg/obcs:
59      * fix treatment of obcs_read_pickup for TAF
60    o pkg/shelfice:
61      * add missing initialisation of num_shifwflx
62      * new adjoint verification exp. for isomip
63      * change Prandtl and Schmidt numbers from generic formulations
64        (in terms of model diffus. and visc.) to separate runtime
65        parameters, with Holland and Jenkins (1999) default values.
66    o pkg/exf (interpolation):
67      - extended input field (2 rows) near the N & S poles:
68        * fill in with the symetric value (when even Nb of data in longitude)
69        * add average value at the poles only for scalar quantities ; for vector
70          component interpolation, skip the averaging and keep duplicated values,
71          unless the 2 components have same location (uvInterp=T) in which case
72          interpolate the 2 components together using S/R EXF_INTERP_UV.
73      - new S/R EXF_INTERP_UV to interpolate the 2 components of a vector field
74        together: this allows to account properly for local orientation when
75        averaging at N & S pole.
76      - add CPP option EXF_USE_OLD_INTERP_POLE to recover old results regarding
77        exf-interpolation near N & S poles. Undef by default.
78      - add debug check/print on 1rst iter if debugLevel >=2.
79    o pkg/exf:
80      - change masking flags definition (no longer "parameter"), put them in
81        common block and set them in S/R EXF_INIT_FIXED.
82      - change recognized masking flag from s,u,v to c,w,s since the mask
83        to use (maskC,W,S) depends on position on model grid and has little to
84        do with scalar/vector difference; fix masking if using P-coordinates.
85      - fix masking of wind-stress (was wrong if interpolated or read on A-grid)
86        and update results of exp. global_with_exf (x2).
87      - fix setting of zenith-angle table when SHORTWAVE_HEATING is undef.
88    o pkg/obcs
89      - S/R obcs_calc_stevens: fix a small bug (gammat -> gammas where appropriate)
90    o pkg/exf (interpolation):
91      - assume periodicity in X only if input field cover full longitude range.
92      - improve search for lat. index (supposed to be faster, in ~log2(ny) steps,
93        and should vectorise).
94      - fix input lat of the 2 added row (in case we provide N.pole data).
95    
96    checkpoint63h (2011/12/30)
97    o pkg/seaice:
98      - change declaration of UVM from _RL to _RS in order to get B-grid
99        uIce,vIce monitor when _RS = real*4
100    o pkg/offline:
101      - new S/R OFFLINE_RESET_PARMS for resetting main-model params (switch off flags);
102      - compute vertical velocity if not read from file (switch on exactConserv
103        & staggerTimeStep);
104      - fix output of ptracer monitor iter & time for default PTRACERS_monitorFreq.
105    o verification:
106      - update grid-files (in tutorial_held_suarez_cs/input and fizhi-cs-32x32x40/input)
107        with grid-angle generated using "utils/matlab/cs_grid/cubeCalcAngle.m":
108        fix Pb in yG definition @ 2 missing corners (previously yG was averaged);
109      - update output of exp. global_ocean.cs32x15.viscA4 after changing
110        grid-file angles (used here for coriolis-3d);
111      - remove (or gzip) few files not needed to run fizhi-cs experiments.
112    o pkg/exf (vector interpolation):
113      - rotate vector component toward local grid-axis orientation using grid-angles
114        (stored in GRID.h) instead of locally computed rotation angle; keep old code
115        available with exf option EXF_USE_OLD_VEC_ROTATION (undef by default).
116    o pkg/seaice:
117      - allow to compile with exf options ALLOW_ATM_TEMP or ALLOW_DOWNWARD_RADIATION
118        undefined. Fix and remove the stop when ALLOW_RUNOFF is undefined.
119    o pkg/PKG_OPTIONS.h files:
120      - move #include "CPP_OPTIONS.h" just after #include "PACKAGES_CONFIG.h",
121        outside of the #ifdef ALLOW_THISPKG / #endif block.
122      - update verification/*/code/PKG_OPTIONS.h files.
123    o add a verification experiment (offline_exf_seaice/input.seaice) that test
124      the B-grid LSOR solver
125    o pkg/seaice: sort out emissivity and long wave radiation step 2:
126      - add emissivity for snow and ice as new run-time parameters
127        (unfortunately) that default to the corresponding exf values; this
128        changes results in most verification experiments so that for backward
129        compatibility these parameter have to be set explicitly to inconsistent
130        values (ugly);
131      - the exf-flag EXF_LWDOWN_WITH_EMISSIVITY then gets rid off the hard-wired
132        emissivities of 0.97 associated with lwdownloc in S/R seaice_solve4temp
133        until we agree how to handle this bug properly
134    o pkg/exf (interpolation):
135      - add a set of run-time param ({inputfield}_interpMethod), one for
136        each interpolated input field, to select the interpolation method
137        with a value of zero switching off the interpolation;
138      - print interpolation parameters to standard output;
139      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
140        (to use instead runoff_interpMethod=0 in data.exf).
141      - simplify default setting of interpolation parameters (for all fields,
142        set position to match model grid cell-center position, leading to trivial
143        interpolation in case of regular Lat-Lon grid) and fix for the case of
144        non-uniform delY.
145    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
146       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
147       this factor is absolutely required, because the lw exitance (= out-going
148       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
149       where the reflectivity rho = 1-emissivity for conservation reasons. Once
150       this is established, we can remove the CPP-Flag (if we want to).
151    o pkg/seaice:
152      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
153        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
154      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
155        what the name implies (and not emissivity*BoltzmannConstant), this means
156        the old default value of 5.5e-8 now means
157        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
158        S/R exf_readparms
159      - FV-discretization of the B-grid LSOR solver, turn on with
160        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
161        of the calling routine dynsolver, so that B and C-grid code look a
162        little more alike.
163      - fix index bugs in ostres.F (B-grid code)
164    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
165    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
166      default for SEAICE_emissivity, if useEXF; requires setting a wrong
167      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
168      backward compatiblity
169    o model/src: use sigmaR in calc_ivdc
170    
171    checkpoint63g (2011/12/16)
172    o pkg/seaice/seaice_growth.F:
173      fix heat conservation of the coupled ocean-seaice system.
174      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
175      solid vs liquid water treatment is resolved via QNET.
176    o pkg/seaice/seaice_growth.F:
177      add missing term for sublimation in saltFlux, which was breaking conservation.
178    o pkg/seaice/seaice_model.F:
179      Remove this patholigical case treatment in evolution branch,
180      where it is un-necessary and breaks conservation.
181      Update global_ocean.cs32x15/results accordingly for
182      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
183    o model/src:
184      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
185      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
186    o pkg/obcs:
187      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
188      tendency for temperature and salinity that is then applied to update
189      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
190      horizontal advection and diffusion contributions on the boundary (in
191      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
192      removing the mask in S/R timestep_tracer. The advantage of this approach is
193      that the updated tracer values include contributions from the surface
194      forcing and vertical diffusion.
195      This modification changes exp4.stevens because of vertical diffusion.
196    o model/src:
197      change non-curvilinear grid setting to also work with exch2 + blank tiles:
198      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
199        face dimensions.
200      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
201        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
202        and INI_SPHERICAL_POLAR_GRID.
203      change test-experiment global_ocean.90x40x15:
204      - split the domain in many more tiles (9x4 tiles of 10x10 each);
205      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
206      - update results of both test (std & dwnslp).
207    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
208       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
209    o model/src:
210      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
211        and fix initialisation when using sigma-coords.
212    o model/src:
213     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
214       to their current value at the beginning of forward_step.F": add a new run-time
215       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
216     - set doResetHFactors=T in the following test exp:
217        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
218        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
219        and tutorial_global_oce_in_p (nonLinFS in p)
220    o pkg/ecco
221      - added IES cost term
222    o verification/advect_xz
223      - scale down the depth by 1/100 (from 200 km to just 2.km)
224      - add secondary test using divergent flow, r-star and implicit vertical advection.
225      - add note (check_conserve_TS.txt) and matlab script to check global
226        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
227    o pkg/rbcs:
228      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
229    o pkg/obcs (Stevens BCs):
230      - fix various problems in the phase speed computations of the Stevens
231        boundary conditions:
232        - sign error for western and southern boundaries,
233        - time tendencies were underestimated by factor of dTracerLev and some just
234          zero (for multidim advection schemes) -> now estimate time tendencies
235          from difference between previous (n) time level and the one before (n-1);
236          this requires storing a field per tracer per boundary, also in the pickup
237          files.
238        - replace deltaTmom in cflMer/Zon computation with dTracerLev
239        - set default phase velocity to cflMer/Zon
240      - update verification experiment exp4.stevens
241    o pkg/generic_advdiff (implicit_r):
242      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
243        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
244      - fix implicit vertical diffusion or advection with NonLin FreeSurf
245        (was using current recip_hFacC instead of future recip_hFacC): set future
246        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
247        solver S/R ;
248      - fill diagnostics of vertical advective fluxes (computed from tendency)
249        when using implicit vert. advection;
250      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
251         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
252         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
253         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
254    o pkg/diagnostics:
255      - add diags for T & S tendency which goes through Adams-Bashforth.
256    
257    checkpoint63f (2011/11/30)
258    o pkg/obcs/obcs_calc_stevens.F:
259      - join some loops to reduce number of if-statements
260      - fix a bug in code for northern and southern boundaries.
261    o pkg/seaice/seaice_init_varia.F
262      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
263        caused zero ice-velocities for the B-grid code
264    o pkg/seaice/seaice_init_fixed.F
265      - fix a bug in the initialisation of the second metric terms
266        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
267      - this affects all seaice configurations with useCurviLinearGrid = .true.
268        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
269        = .true. (default)
270      - the only verification experiment affected is global_ocean.cs32x15:
271        icedyn, seaice, and seaice_dynmix (AD)
272    o pkg/thsice/thsice_diagnostics_state.F
273      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
274        not contain garbage that can lead to surprises in diagstats_calc.F
275    o model/src:
276      - move bi,bj loops inside INTEGR_CONTINUITY ;
277      - call INTEGR_CONTINUITY directly from forward_step.F
278        (previously called from momentum_correction_step.F)
279      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
280        forward_step.F and pkg/ecco/the_main_loop.F
281    o model/src/do_oceanic_phys.F:
282      - reset addMass to zero only if useICEFRONT ;
283      - separated k-loop for rhoInSitu calculation ;
284      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
285        and at constant T,S (= WdRHOdP);
286      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
287        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
288        transport of locally-referenced potential density);
289        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
290    o gluemnc:
291      - replace ncrcat with ncks when adding variables to *.glob.nc
292      - change the way variables without record dimensions are handled so that
293        files that have variables with and without record variables can be glued:
294        add a record dimension with a new unique name to be able to differentiate
295        between variable with and without a-prior record dimensions. Remove
296        this record dimension before adding the variable to the *.glob.nc file.
297        This procedure automatically works also for grid.*.nc files that do not
298        have any record dimension.
299    o verification/cpl_aim+ocn:
300      - generate new reference output on baudelaire (gfortran, mpich2) (previously
301        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
302    o pkg/obcs/obcs_calc_stevens.F:
303      - add code for northern and southern boundaries.
304      - reorder some loops to save some operations and so that drFBar can be scalar
305    o model/src:
306      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
307        truncation) and add diagnostics for Adams-Bashforth tendency increment.
308      - update test-exp. AD output:
309        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
310      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
311        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
312        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
313        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
314        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
315        tutorial_plume_on_slope.
316    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
317      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
318      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
319      does not even come with an F77 compiler anymore, this should not be
320      a limitation
321    
322    checkpoint63e (2011/11/06)
323    o pkg/seaice adjoint of LSR:
324      - substantially rework STORE dirs.
325      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
326        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
327        and only perform SOLV_MAX_FIXED adjoint iters.
328        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
329        always goes to same record, meaning that the last forward field will be
330        the one used in the adjoint - an approximation.
331      - now produces non-zero LSR-related gradients, and acceptable gradients for
332        An's zonal (x-z) test case (to be checked in)
333      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
334        (but these are screwed up by the thermodynamics in the first place);
335        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
336        output_adm.txt also reflects changes to seaice_lsr
337      - global_ocean.cs32x15:
338        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
339          (output_adm.seaice.txt was updated)
340        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
341          (output_adm.seaice_dynmix.txt)
342    o test-exp. exp4+stevens:
343      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
344    o pkg/seaice (lsr solver):
345      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
346        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
347      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
348      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
349        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
350      - compute (with new S/R) and print initial (+ free-driff sol. if available)
351        and final residual of linearised system.
352    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
353      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
354    o pkg/obcs: Stevens BCs (still only for east and west)
355      - fix Stevens BCs by using intermediate velocities of previous
356        time step as "baroclinic" contribution rather velocity of one grid cell
357        inside the boundaries; more consistent but makes the entire treatment
358        more complicated, requires new pickup files and two new S/Rs:
359        obcs_copy_uv_n and obcs_save_uv_n
360        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
361        (undefined by default)
362      - silently move computation of some grid factors into separate loops to
363        save some recomputations
364      - add a hack for non-linear free surface
365      - add a verification experiment to exp4 that tests this code
366    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
367    
368    checkpoint63d (2011/10/25)
369    o pkg/obcs + seaice-dynamics:
370      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
371        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
372        values (consistent with an implicit method).
373      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
374        return to older implementation (same results as before); note that none of
375        the "experimental" OBCS_SEAICE options are implemented in the new version.
376      - switch test exp. seaice_obcs to use new version (update output).
377    o pkg/seaice:
378      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
379      - add parenthesis in Water-Ice drag calculations (evp & lsr);
380      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
381        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
382      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
383        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
384    o pkg/layers:
385      - Include potential density as new coordinate (Thanks to David Munday)
386    o pkg/dic:
387      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
388        carbonate computation/output to CALC_PCO2_APPROX
389    o pkg/generic_advdiff
390      - make TAF generate code that vectorizes:
391        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
392    o model/src:
393      - improve vectorization also for adjoint code of
394        solve_tridiagonal and solve_pentadiagonal. As this requires up to
395        5 new 3D-fields, this code is only turned on for the combination of
396        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
397        for singular matrix check (only for TARGET_NEC_SX).
398      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
399        ALLOW_AUTODIFF. This flag now needs to be set outside of
400        solve_tri/pentadiagonal.F
401    o pkg/exf:
402      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
403        optional namelist EXF_NML_OBCS).
404      - add many debug-print (to trace down where pkg/cal error msg comes from)
405    o pkg/mom_vecinv/mom_vi_hdissip.F
406      - rearrange loops so that vectorization is improved and in particular
407        the adjoint routine vectorizes. The code is a little longer now, but I
408        think easier to read.
409        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
410    o pkg/seaice:
411      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
412    o pkg/exch2:
413      - alternative code (without tile x tile matrix) for cumulated (global) sum;
414        used as default; keep using matrix version in adjustment.cs-32x32x1.
415    o tools/build_options:
416      - after merging some MPI and/or multi-threads specific optfiles so that
417        the modified default optfile support both built (using genmake2 -mpi
418        for the MPI built, using genmake2 -omp for OpenMP built),
419        move now obsolete optfiles to tools/build_options/unsupported/
420       (add copy of email sent to support list in doc/optfiles_changes.txt)
421    
422    checkpoint63c (2011/09/28)
423    o pkg/ebm:
424      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
425        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
426    o pkg/seaice (SItracer pickup)
427    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
428      To be done:
429      - thorough testing of missing fields in S/R seaice_read_pickup
430      - thorough matching between generic tracers and specific fields used
431        (e.g. volume-weighted age, area-weighted age, salinity, ...)
432    o pkg/grdchk:
433      - all procs calculate and print finite-difference gradient (for testreport)
434      - change description output used by testreport;
435      - AD testing: also compare and report Finite-difference gradient;
436        => update all output_adm*.txt
437    o test exp. global_ocean_ebm:
438      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
439        and turn on exactConserve; update (fwd) output.
440    o pkg/seaice (LSR):
441      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
442      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
443        * identical results with non-CS topology (but save up to half of EXCH calls)
444        * no much changes in cs-32 verification tests since no ice at face edges
445         (differences due to convergence criteria, since nb of iterations changed)
446        * expect some differences on lat-lon-cap grid.
447        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
448    o pkg/exch2:
449      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
450        many tiles); until alternative coding is added, just add a stop.
451    o pkg/kpp:
452      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
453        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
454    o optfiles:
455      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
456        into corresponding standard one, which now support different build:
457        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
458      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
459    o pkg/obcs (seaice):
460      - add missing EXCH for uIce,vIce after applying OBCS;
461      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
462        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
463        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
464      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
465      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
466        and eedata.mth for MPI and mutlti-threaded testing.
467    o pkg/flt:
468      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
469      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
470      - fix pickup and trajectories + profiles output with multi-threads;
471      - add parameter to select group of fields to write along trajectory and
472        profile (default unchanged);
473      - only call PORT_RAND* function when flt_noise <> 0;
474      - add multi-threaded test for verification exp. flt_example.
475    o eesupp/src:
476      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
477      - USE_OMP_THREADING: check that number of threads (from eedata) matches
478        actual number (from env.var. setting).
479    o pkg/ebm:
480      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
481      - add multi-threaded test for verification exp. global_ocean_ebm
482    
483    checkpoint63b (2011/08/29)
484    o pkg/ebm:
485      - fix sign of runoff;
486      - update directly forcing fields (Qnet,EmPmR) to use standard
487        external_forcing_surf.F (remove ebm_forcing_surf.F);
488      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
489      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
490        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
491      - update global_ocean_ebm parameters file data and update output (fwd+ad).
492    o verification/matrix_example:
493      - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
494        MPI and mutlti-threaded testing.
495    o pkg/matrix:
496      - change name of S/R MATRIX_INIT to S/R MATRIX_INIT_VARIA ;
497      - fix for multi-tiles (add bi,bj indices to exp/impMatrixCounter);
498      - fix for multi-threaded (remove DATA statement);
499      - use standard DIFFERENT_MULTIPLE function;
500      - add MATRIX_OPTIONS.h
501    o verification/matrix_example:
502       To allow to split the domain in several tiles, change the domain size
503        from 31x31 to 32x32 by adding 1 row (on Southern side) + 1 column (on
504        Western side) of land points.
505    o (*_)write_pickup:
506      - fix few bugs in mypackage_read/write_pickup.F
507      - in MDS_WR_METAFILES calls, replace "myTime" by a local copy into
508        array of length 1 (was caught by compiler syntax-check).
509    o pkg/diagnostics (velocity potential solver):
510      - fix initialisation of main diagonal matrix (for overlap values)
511    o tools/build_options:
512      - towards single optfile for MPI and non-MPI built: merge few +mpi optfile
513        into previously non MPI one (linux_am64 pgf77,open64,pathf90,ifort11)
514      - linux_amd64_gfortran: merge +mpi_generic version into standard optfile:
515        * move IEEE flags to DEVEL section; take IEEE flags from +mpi_generic ;
516        * FAST case: for now, keep -O3 with ini_masks_etc.F in NOOPTFILES list;
517        and use "-devel" testreport option for standard testing on baudelaire.
518    o pkg/grdchk:
519      - Assume that all gradient-check position are within the same tile
520        corresponding to global indices (iGloTile,jGloTile) and that
521        positions (i,j indices or nbeg) are local to this tile;
522      - set tile local-indices and proc. number according to tile global-indices;
523      - remove grdchkwhichproc from namelist (retired param);
524      - send adjoint gradient to all procs so that all procs print it to STDOUT;
525      - switch on MPI test for global_ocean.90x40x15 AD test experiment.
526    o adding package bbl (Bottom Boundary Layer)
527      description in MITgcm/pkg/bbl/bbl_description.tex
528      example/test experiment in MITgcm_contrib/bbl
529    o adjoint verifications
530      - changed 5 experiments to multi-tiles
531        * global_ocean.90x40x15
532        * obcs_ctrl
533        * offline_exf_seaice
534        * tutorial_dic_adjoffline
535        * tutorial_tracer_adjsens
536        changed reference output for those that crossed tile boundaries
537        (changed choices of gradient check positions)
538      - with same tiling, switch on MPI test for the last 4 (add SIZE.h_mpi)
539      - temporary bug fix in grdchk_loc.F for obcs
540    o genmake2 & testreport
541      - add target "obj" (just for OBJFILES files) to Makefile;
542      - add option to specify FEXTRAFLAGS on command line.
543    o pkg/mypackage:
544      - remove bi,bj arguments from argument list of S/R MYPACKAGE_CALC_RHS
545    
546    checkpoint63a (2011/08/02)
547    o pkg/diagnostics (velocity potential):
548      - fix velocity-potential calculation when using OBCS: balance net inflow
549        at each level (new S/R OBCS_DIAG_BALANCE).
550      - fix some of the problems with OBCS in stream-function calculation.
551    o pkg/exf/exf_readparms.F
552      - make treatment of optional namelists (EXF_NML_04, EXF_NML_SGRUNOFF,
553        EXF_NML_OBCS) more consistent, so that you need not have these lists
554        in data.exf when they are not used.
555    o optim/optim_readdata.F:
556      - add some output about obcs variables that might help debugging
557      - add a check about nvarlength
558    o pkg/ctrl: once again, fix computation of endrec in s/r ctrl_init_rec
559    o pkg/diagnostics (velocity potential):
560      - fix mask for OBCS (still problems in stream-function with OBCS);
561      - add specific parameter (default = main code CG2D params) for solver;
562      - in case of poor convergence, use solution corresponding to lowest residual.
563    o pkg/seaice/seaice_growth.F: small changes that permit vectorizable
564      adjoint code. In general statements like tmpscal=fld(i,j) are problematic
565      and should be avoided where possible.
566    o model/src (rStar):
567      - include r* effect on reference-state (PhiRef) in totPhiHyd
568        (so that it's really the potential anomaly at the cell center);
569        affect solution only if z* with full pressure in EOS.
570      - test-exp global_ocean.90x40x15: reduce viscA4 (was not stable) and
571        update output (because of z* in totPhiHyd and viscA4 changes);
572      - keep the previous diagnostics as "PHIHYDcR" (closer to potential anomaly
573        @ constant r) until interpolation at constant r is implemented.
574    o pkg/diagnostics
575      - fix RCENTER diagnostics in case cell center is not at interface middle
576    o add code for TEOS-10 (www.teos-10.org, McDougall et al. 2011). Use
577      this eos with eosType = 'TEOS10', in data (PARM01). This eos implies
578      that THETA and SALT are "conservative temperature" and "absolute
579      salinity"
580    o pkg/ctrl
581      - fix computation of endrec in s/r ctrl_init_rec
582      - ctrl_pack/unpack_*: remove unused variables and some obsolete code
583    o pkg/seaice/seaice_growth.F
584      - fix recomputation with FENTY_AREA_EXPANSION_CONTRACTION code,
585        remove then obsolete STORE directives
586      - fix STORE directives for tice and tices, so that only the
587        appropriate part of the fields are stored (and not the entire
588        field); update global_ocean.cs32x15.seaice AD output.
589      - cosmetic changes: adjust CPP flags and indentation for better
590        legibilty
591    o pkg/autodiff: add mnc-output of adBottomDragFld (code contributed by
592      Chris Wilson)
593    o pkg/gmredi:
594       Add Sub-Meso Eddies parameterisation from Baylor (for now, disabled with TAF),
595       and test it in verification exp. "front_relax.bvp" (update output.bvp.txt)
596    
597    checkpoint63  (2011/07/11)
598    o pkg/exch2:
599     - rename+move: nTiles in W2_EXCH2_PARAMS.h --> exch2_nTiles in W2_EXCH2_TOPOLOGY.h
600     - exch2 version of Cumul-Sum routine: S/R W2_SET_MAP_CUMSUM set up the
601       (2*nTiles)x(nTiles) Cumul-Sum matrix and Master Proc collects all tiles X,Y
602       increments, calculates Cumul-Sum @ tile origin and sends results to each tile.
603    o pkg/diagnostics:
604     - deal with pairs of post-processed diags which are computed together; in
605       particular, re-order list of diags within 1 file to save 2nd computation.
606     - add S/R to compute velocity stream-function (called after velocity-potential
607       calculation) from divergence free transport -> new diagnostics "PsiVEL".
608     - add parameter to select grid-point location where PsiVEL == 0.
609    o eesupp/src:
610       new S/R to calculate cumulated sum on tiled array, corner grid-cell location
611       (specific S/R needed with exch2 topology - for now, just print an error msg)
612    o pkg/shelfice
613     - Implement friction velocity-dependent transfer coefficients following
614       Holland and Jenkins, JPO, 1999
615       Original code by M. Losch with small modifs.
616       Enable with CPP option SHI_ALLOW_GAMMAFRICT
617       and runtime flag SHELFICEuseGammaFrict
618    o verification lab_sea & global_ocean.cs32x15:
619     - use tools/xmakedepend (instead of cyrus_makedepend, in genmake_local):
620       does not miss some dependencies (but is slower) and also works with many files
621       (default makedepend limitation for AD built).
622     - use cyrus_makedepend in adjustment.128x64x1 (so that it still tested).
623    o pkg/diagnostics:
624     - add run-time parameter "useMissingValue" (def=False) to fill land-point
625        (i.e., where mask=0) with MissingValue ; used only in MNC output file.
626       This replaces CPP-option DIAGNOSTICS_MISSING_VALUE.
627     - Extend the use of "missing_value" setting from data.diagnostics for the case
628       of counter-diagnostics (where fraction-weight is zero). This applies both to
629       MNC and MDS output files.
630    o pkg/seaice/seaice_growth.F:
631      - add 'a priori' cap of latent heat flux based on actual mass considerations
632        when SEAICE_ADD_SUBLIMATION_TO_FWBUDGET is used in conjunction with the
633        non-legacy seaice_solve4temp.
634      - add diagnostic of the residual sublimation freshwater flux (the freshwater
635        flux taken from the ocean if the total actual latent heat fluxes exceed
636        the maximum)
637      - remove the CPP switch around the *_FWbySublim unit change and move diagnostic
638       fill for SIatmQnt, SIfwSubl, SIatmFW to the end of seaice_growth.F.
639      - add diagnostic of the actual sublimation freshwater flux (that is 0. ifndef
640       SEAICE_ADD_SUBLIMATION_TO_FWBUDGET) and of the latent heat flux (evap+sublim).
641      - bug fix : frWtrAtm needs a_FWbySublim ifdef SEAICE_ADD_SUBLIMATION_TO_FWBUDGET.
642      - bug fix : missing part to Martin's r_FWbySublim pathological case fix.
643    o verification 1D_ocean_ice_column:
644       made model domain truly 1x1x23 instead of 5x5x23 with only center cell (3,3,:) wet
645       update results
646    o pkg/diagnostics:
647     - Implement setting of "Post-Processed" diagnostics (corresponding to gdiag(5)='P')
648       which are not filled-up but computed from other diags ; In this case, the mate
649       diag points to the primary (filled-up) diag to used for post processing.
650     - Update Velocity-potential computation using post-processed diag framework.
651     ==> Change the ordering of fields and time-periods in MDS output file
652       when using periodic averaging: now writes one time record with the full set
653       of fields for this time period, then the next time reccord (it used to be
654       one field with the full set of time records then the next field).
655         Note: this is now similar to NetCDF (MNC) output file. <==
656    
657    checkpoint62z (2011/06/21)
658    o adjoint monitor:
659     - Add adjoint monitor output for packages exf, seaice
660       and update relevant testreport output
661    o pkg/seaice:
662     - re-order diags inits so that they appear in order in available_diagnostics.log
663     - added diags: hsnow thermo. rates of change, area preceeding ridiging process,
664       area/heff/hsnow preceeding thermodynamic growth/melt.
665     - modified diag: SIdA; output actual effect, as the description states.
666     - modified description: SIqneti, SIqneto, SIuheff, SIvheff, SIdAb*, HSNOW.
667     - retired redundant diags: SIyneg, SIfice, SIsnwice, SIthdgrh.
668       (SIyneg->SIdHbOCN; SIfice->SIdHbATC; SIsnwice->SIdHbFLO;
669        and SIthdgrh->SIdHbOCN+SIdHbATC+SIdHbATO)
670     - modified diags (2) : switch all SIdA*, SIdH*, SIdS* from delta to rates.
671     - added diagnostics for seaice generic tracers (SItr*).
672     - added SItrUnit and SItrNameLong run time param (for SItr* diags).
673     - in diag names, replaced 'PrTh' abbrev. of 'preceeding thermo' with 'PT'.
674     I. Fenty: 18-Jun-2011:
675     Minor changes to seaice package:
676     1) Retired old variables (A22, SEAICE_lhsublim, areaMax, areaMin, hiceMin) and
677        added some new ones (SEAICE_area_reg, SEAICE_hice_reg, SEAICE_area_floor)
678       - Differentiated "regularization variables" from "floor variables"
679        * areaMin became SEAICE_area_reg (old A22) and SEAICE_area_floor
680        * hiceMin became SEAICE_hice_reg (old hiceMin)
681          (with _reg meaning regularization variable)
682       - SEAICE_lhSublim becomes lhSublim, the sum of SEAICE_lhEvap and SEAICE_lhFusion
683        so as to ensure energy conservation when going between phases
684      - A22 was not used anywhere
685     2) Changed regularization procedure for heffActual and hsnowActual to ensure
686        well-boundedness and smooth adjoint in seaice_growth.F
687     3) Fixed a bug where seaice_solve4temp would not recognize ice-free grid cells
688        because the old regularization always set heffActual >= 0.05 cm
689     4) Changed the model so that the default behavior is to put a small (10^-5) "floor"
690        on AREA when HEFF > 0.
691      - went from requiring ALLOW_PRECLUDE_INFINITESIMAL_AREA to be defined to
692        requiring that DISABLE_AREA_FLOOR *not* be defined
693     Affected verifications:
694      - 1D_ocean_ice_column (output.txt output_adm.txt)
695      - global_ocean.cs32x15 (output.seaice.txt output_adm.seaice.txt)
696    o pkg/diagnostics:
697      - move MNC code from diagnostics_out.F into new diagnostics_mnc_out.F (2 S/R).
698      - rename S/R GETDIAG to DIAGNOSTICS_GET_DIAG and change type of 1rst argument
699        (was _RL, now integer) with option = 0 to retrieve all levels.
700      - add pieces of code to compute velocity potential at each level (new diagnostics
701        PhiVEL, works only when UVELMASS & VVELMASS are also turned on);
702        for now, using same params as CG2D (target-resisual, max Nb of iter ...).
703      - fix few issues with counter diagnostics in diagnostics_setdiag.F &
704        diagstats_setdiag.F (if diagnostic counter is itself a counter diag)
705        and in diagnostics_fract_fill.F (do not need a valid pointer for the
706        diagnostics counter-mate); check that definition of counter-diagnostic
707        includes a valid counter-mate (in diagnostics_set_levels.F).
708    o model/src (rStar):
709      - add rStar scaling factor in diags_phi_hyd.F (similar to calc_grad_phi_hyd.F);
710        affect solution only if z* with full pressure in EOS;
711        update output of test-exp global_ocean.90x40x15.
712    o pkg/seaice:
713      - introduce siEps=1e-5 parameter
714      - use areaMax in AREA update (part 4), consistent with ridging step (part 2.5).
715      - re-organize SEAICE_ADD_SUBLIMATION_TO_FWBUDGET code.
716      - introduce ALLOW_SITRACER and seaice_tracer_phys.F to handle generic seaice tracer.
717        For now it covers, and was tested for, ice salinity and age (attached to HEFF),
718        as well as ice cover age and ridging index (attached to AREA).
719        For now the run time parameters (in data.seaice/SEAICE_PARM03) are
720        SItrName (e.g. 'age') and SItrMate ('HEFF', which is the default, or 'AREA').
721        Up to SItrMaxNum=3 tracers can be used simultaneously.
722    o pkg/salt_plume:
723      -introduce SPsalFRAC run time parameter that sets the fraction of the
724       salt by-product of ice growth (SPsalFRAC*(1-SIsalFRAC)*salt typically)
725       that gets vertically redistributed (fluxed down) by pkg/salt_plume.
726    o model debug options:
727      - Switch reading of debugMode from S/R INI_PARMS (parameter file "data", stored
728        in PARAMS.h) to S/R EESET_PARMS (parameter file "eedata", stored in EEPARAMS.h).
729      - Refine debug-msg printing selection (3 new levels):
730        debugMode  : controls printing of debug messages (sequence of S/R calls).
731        debugLevel : controls printing of algorithm-relevant auxiliary/debug messages
732         debLevZero =  0 ; /* level of disabled aux. msg printing */
733         debLevA =  1 ; /* level of minimum  aux. msg printing */
734         debLevB =  2 ; /* level of low aux. print (report read-file opening)*/
735         debLevC =  3 ; /* level of moderate debug prt (most pkgs debug msg) */
736         debLevD =  4 ; /* level of enhanced debug prt (add DEBUG_STATS prt) */
737         debLevE =  5 ; /* level of extensive debug printing */
738        New debugLevel default: with default debugMode value (=F),
739          = 2 (debLevB) or = 1 (debLevA) in case ALLOW_AUTODIFF is defined.;
740          and if debugMode=T, default debugLevel = 4 (debLevD).
741        Relation with previous settings:
742         debLevB (=2) corresponds to former debLevA (=1)
743         debLevD (=4) corresponds to former debLevB (=2)
744        Note:
745         a) if debugLevel=0, skip WRITE_GRID call when nIter0 > 0 (same as before);
746         b) default debugLevel=1 is convenient in AD runs (avoid many file opening msgs);
747            to recover previous default, set debugLevel=2 (e.g. AD-test hs94.1x64x5)
748      - Add new parameter (printResidualFreq, read from PARM02 namelist) to print
749        detailed CG solvers convergence; off (=0) by default, except if debugLevel=5.
750    o pkg/obcs:
751      - change OBCSfixTopo default from True to False (should not change the results);
752        keep OBCSfixTopo=T in verification-exp. seaice_obcs.
753    o pkg/thsice:
754      - fix bug in thsice_calc_thickn.F (was introduced in version 1.18) in
755        2nd layer seaice sublimation (unlikely to happen)
756      - use Interior mask for OBCS in thsice_advection.F (similar to what is
757        done in gad_advection & seaice_advection).
758    o adjoint:
759      bug fix spotted by Gael Forget:
760      seaice_advection and thsice_advection still had
761      legacy CPP options to avoid CS corner updates for adjoint
762    o pkg/seaice:
763      => Change some of the defaults (2011/05/29):
764         - change SEAICEuseFluxForm default (from False to True)
765         - change DIFF1 default (from 0.004 m/s to 0. m/s)
766         And print warnings if DIFF1 is not set in data.seaice and centered
767          avection scheme is used without any diffusion.
768      also:
769      - fix seaice_diffusion calls in default AdvScheme part of seaice_advdiff.F;
770      - set SEAICEdiffKh[] default in the same way as SEAICEadvSch[]
771      - stop if DIFF1<>0 with SEAICEadvScheme <> 2, if DIFF1<>0 with any
772        other non-zero SEAICEdiffKh[] diffusivity, if SEAICEadvSalt=T with
773        #undef SEAICE_VARIABLE_SALINITY, if SEAICEadvAge=T with #undef SEAICE_AGE.
774      update results of test exp.:
775         lab_sea: output.fd (switch to AdvScheme=33 with diffKh=20)
776             output.hb87, output_adm.evp (SEAICEuseFluxForm=T and diffKh=200)
777             output_adm.noseaicedyn (SEAICEuseFluxForm=T)
778         offline_exf_seaice: output.seaicetd, output_adm (SEAICEuseFluxForm=T)
779         seaice_obcs: output (SEAICEuseFluxForm=T)
780      and prescribe old default for SEAICEuseFluxForm (=F) and DIFF1 (=0.004)
781          for standard fwd & AD lab_sea tests (to keep the same output).
782    o pkg/seaice/seaice_growth.F:
783      - use Ian Fenty's capping formulas for actual ice
784      thickness thoughout EVOLUTION branch.
785      - put treatment pathological case #2) in CPP brackets
786      (ALLOW_AVOID_INFINITESIMAL_AREA, undef by default).
787      - update global_ocean.cs32x15 and 1D_ocean_ice_colum results accordingly.
788    o pkg/seaice:
789      - seaice_diffusion.F : remove the min(DX,DY) factor permanently;
790      pass the Laplacian diffusivity (in m^2/s) diffKh as a parameter;
791      also pass fac as a param, which can be 1. (to update the tendency
792      field) or the time step (to update the field itself).
793      - seaice_advdiff.F: for multidim, call seaice_diffusion with
794      e.g. SEAICEdiffKhHeff and with fac=1; for single-dim, call
795      seaice_diffusion with e.g. SEAICEdiffKhHeff and with fac=time step.
796      - SEAICE_PARAMS.h, seaice_readparms.F, seaice_check.F :
797      hooks to handle SEAICEdiffKhHeff, SEAICEdiffKhArea, etc.
798    o pkg/seaice:
799      diffusion with centered advection scheme (diffus.F & advect.F):
800      - simplify S/R DIFFUS (put deltaT & DIFF1 factor outside, move EXCH outside)
801        to just compute the laplacian of input-field.
802      - unroll k loop (harmonic,biharmonic diff) in advect.F to save 1 exch call.
803      - fix flux-form version in diffus.F to conserve tracer.
804      update output of lab_sea.fd & lab_sea.hb87 (1rst set of modif affects
805       machine truncation) and lab_sea.salt_plume (conservative flux-form modif)
806    
807    checkpoint62y (2011/05/26)
808    o pkg/seaice:
809     - seaice_growth.F : in EVOLUTION branch, always include
810       a_QSWbyATM_cover in qnet (as it should be).
811     - verification/global_ocean.cs32x15 : update results accordingly
812       (output.seaice.txt output_adm.seaice.txt).
813    o pkg/seaice + obcs:
814     - use maskInW & maskInS in multi-dim advection and biharmonic diffusion:
815       equivalent of assuming no tracer gradient outside the OB region.
816       update output of seaice_obcs (uses DIFF1 <>0 => biharmonic diffusion)
817     - remove calls to OBCS_COPY_TRACER after EXCH calls (no longer needed
818       after changes above);
819     - obcs+seaice cleaning: apply seaice-tracer OB values to tracer field
820       only at OB location (instead of over a band of OLx width).
821    o pkg/seaice:
822     - fix wrong indices in old (non Flux-Form) diffusion default S/R diffus.F
823       (dxG(I+1, ...) changed to dxG(I, ...), no impact on Lat-Lon grid)
824    o pkg/obcs:
825      - split header file "OBCS.h" into 4 separated files:
826        OBCS_PARAMS.h, OBCS_GRID.h, OBCS_FIELDS.h & OBCS_SEAICE.h
827       Note: OBCS_PARAMS.h & OBCS_GRID.h can be included without OBCS_OPTIONS.h
828         (contain no conditional statement which depends on OBCS options).
829      - move "useOBCSYearlyFields" from "data.obcs" (hold in OBCS_PARAMS.h)
830        to parameter file "data.exf", namelist EXF_NML_OBCS (in EXF_PARAM.h).
831    o ctrl, cost, grdchk & autodiff pkgs:
832      - make options file more standard (like other {PKG}_OPTIONS.h file but
833        with AD_CONFIG.h); clean-up some of the included header files.
834    o pkg/obcs:
835      - do not mask tracer when applying OB (tracer == 0 could generate problems)
836      - apply tracer OB values to tracer field only at OB location (instead of
837        over a band of OLx width)
838      - clean-up obcs_apply_w.F & obcs_apply_eta.F (since less calls to these S/R)
839      - remove OBCS_MULTIDIM_OLD_VERSION code in gad_advection.F and remove
840        obcs_apply_tloc.F & obcs_apply_sloc.F
841    o obcs in model/src:
842      - call OBCS_APPLY_W only if NonHydrostatic.
843      - call OBCS_APPLY_ETA only if NonLinFreeSurf.
844      - reset dEtaHdt and wVel to zero outside OB interior region ;
845      - leave tracer unchanged outside OB interior region: This has no effect
846        on the solution but just to prevent unrealistic tracer value outside OB.
847      - zero out velocity outside OB interior region: This has no effect on
848        the solution but just to prevent unrealistic velocity outside OB.
849    o obcs and non-lin free-surf:
850       move call to OBCS_APPLY_R_STAR from update_r_star.F to calc_r_star.F
851       and call to OBCS_APPLY_SURF_DR from update_surf_dr.F to calc_surf_dr.F
852       + add argument "etaFld" to OBCS_APPLY_R_STAR & OBCS_APPLY_SURF_DR:
853       this fixes missing EXCH + get consistent eta OB value (+ fix restart).
854       update results of test-exp. exp4(nlfs).
855    o exp4 (nlfs) test-exp:
856       use OBC for Eta at Western & Eastern OB (to test prescribing Eta
857       with NonLin-FreeSurf); update output.nlfs.txt
858    o obcs and 2d/3d solver norm:
859       use interior masks (maskInC) to cancel out cg2d & cg3d matrix coeff at OB
860       and outside OB interior region (will allow to place OB further inside the
861       domain). Depending on the domain, can affects cg2d-Norm (previous
862       cancellation outside OB was only partial), e.g. in exp4 & obcs_ctrl,
863       and cg3d-Norm (previous Norm was computed before canceling OB terms),
864       e.g. in tutorial_plume_on_slope.
865      - update output of exp.: exp4 (x2), obcs_ctrl and tutorial_plume_on_slope.
866    o pkg rbcs:
867      - split RBCS.h into 3 files: RBCS_SIZE.h, RBCS_PARAMS.h & RBCS_FIELDS.h
868      - add capability to apply relaxation to horizontal velocity uVel & vVel.
869    o pkg/grdchk: add gradient check for control variable xx_shifwflx
870    o pkg/shelfice/shelfice_init_fixed.F
871      fix CPP-flag combinations
872    o pkg/seaice: Merge iceage code of Pierre Rampal
873      * update/change/correct ice age calculations
874      * add age updates for pathological cases
875      Probably needs more testing...
876    
877    checkpoint62x (2011/05/13)
878    o pkg/mom_vecinv:
879       high-order vorticity scheme: use interior masks (maskInW & S)
880       to zero-out (outside OB) gradient of vorticity.
881    o verification exp.:
882       turn on "useEnergyConservingCoriolis" (better discretisation) in exp.
883       hs94.128x64x5 and seaice_obcs ; update results.
884    o pkg/obcs:
885      fix bug in OBeta for YZ sections in obcs_exf_load.F
886    o pkg/ctrl, pkg/shelfice, and optim:
887      - add new control variable xx_shifwflx (fresh water flux underneath ice
888        shelves). This is almost as tedious as obcs-ctrl, because the
889        variables needs its own mask.
890      - add a cost function term that penalizes the deviation of xx_shifwflx
891        from the first guess (zero) in analogy to other control variables
892    o pkg/shelfice:
893      - start basic adjoint
894    o pkg/ctrl:
895      - remove extra 2D field "for good measure" when initializing in
896        ctrl_set_globfld_[xy/xz/yz].F
897      - replace hard coded precision 32 (a bug) in ctrl_map_ini_gen by ctrlprec
898      - improve error messages in ctrl_set_unpack_*
899    o OBC implementation in momentum:
900       use interior masks (maskInC,W & S) in momentum S/R:
901       - multiply divergence, tension and some del^i.u or del^j.v by maskInC
902       - multiply del2u,del2v by maskInW/S (biharmonic viscosity)
903       - multiply horiz. grad of vorticity by maskInW/S (in Leith scheme)
904       - multiply gradient of wVel by maskInW/S in del2w calculation (NonHyd)
905       Motivation: fix/clean implementation of OBC with biharmonic-viscosity
906        (and also with Leith/Smagorinsky harmonic-viscosity).
907       Update output of experiment dome and exp4 (+nlfs).
908    o exp4 test-exp:
909      - turn on: nonHydrostatic, exactConserv, viscA4 (with momDissip_In_AB=F)
910        and prescribe time-varying OB (without pkg/exf) for zonal-velocity
911        at Western & Eastern Boundaries (+/- 1 per-cent); Also prescribe
912        time-varying OB at Western-side for wVel (NonHyd); update output.
913      - add secondary set-up (.nlfs) using NonLin FreeSurf (z*) + mom_vecinv
914        and biharmonic-viscosity ; also use prescribed time varying OB.
915    o pkg/obcs:
916      fix bug in OBWeta,OBWeta indices in obcs_apply_r_star.F
917    o model/src:
918      - fix startTime setting when baseTime<>0 & nIter0=0 are specified ;
919      - initialise startTime & nIter0 with unlikely values: allows to set one
920        from the other without ambiguity.
921    o seaice_obcs test-exp.:
922      add small diffK4T,S to test biharmonic diffusivity with OBCS ; update output.
923    o pkg/obcs:
924      - remove calls to OBCS_COPY_TRACER after EXCH for T,S & pTracer:
925        no longer needed with maskInC,W,S in pkg/generic_advdiff.
926    o pkg/seaice:
927      - retired SEAICE_SALINITY and SEAICE_salinity in favor of
928        SEAICE_VARIABLE_SALINITY and SIsalFRAC, respectively.
929      - fixed bug in the initialization of sea ice salinity variable HSALT
930        in seaice_init_varia.F  (removed dependence on ICE2WATR)
931    o fizhi-cs test exp.:
932       switch reference output convention for these 2 non-standard test-exp,
933        from: pgi  6.1-5 on faulks (FC.6, -of linux_ia32_pgf77+authors_fc5)
934          to: ifort 11.1 on baudelaire (FC.13, -of linux_amd64_ifort11)
935       reason: faulks might get retired soon and pkg/fizhi has still Pb with gfortran
936    o model/inc:
937      - change type of PmEpR array (from _RS to _RL) to fix restart (with "-use_r4")
938        of exp. global_ocean.90x40x15 (Suncronous time-stepping + Real-FW + NonLin-FS)
939    o pkg/seaice:
940      - fix calculation of saltFlux and saltPlumeFlux when using SEAICE_SALINITY
941    o verification/lab_sea, 1D_ocean_ice_column, seaice_obcs, global_ocean.cs32x15
942      - updated output*.txt files due to bug fixes in salt, saltPlumeFlux,
943        and initial HSALT
944    
945    checkpoint62w (2011/04/26)
946    o pkg/mom_fluxform:
947      - fix calculation of del2u & del2v (no-slip BC) when using Non-Lin Free-Surf.
948      - use parameter "sideDragFactor" in no-slip BC side-drag part.
949      - update output of exp. global_ocean.90x40x15
950    o pkg/mom_vecinv:
951      mask del2u & del2v (no effect on results, but cleaner & closer to mom_fluxform)
952    o update seaice exp.:
953      use more consistent parameter values (remove "backward compatability only":
954       ICE2WATR, SEAICE_lhSublim, SEAICE_cpAir, SEAICE_rhoAir + set rhoConstFresh)
955      related to thermodynamics seaice. Update output (fwd+AD) of exp.:
956       1D_ocean_ice_column (x2), lab_sea (x8), ioffline_exf_seaice (x2) & seaice_obcs
957    o update test-exp global_ocean.90x40x15:
958      o use default CD_CODE_OPTIONS file (Adams-Bashforth on CD Mom & Coriolis).
959      o increase Overlap size from 2 to 3 (to allow to test bi-harmonic Visc.)
960      o new pickup-files from a 100.yr run with pkg/down_slope (input.dwnslp params)
961      o turn on zStar & viscA4 in standard set-up (dir input/)
962        and update output files: output.txt & output.dwnslp.txt
963    o new AD-test experiment: obcs_ctrl
964      (From Matt MITgcm_Contrib/SOSE/BoxAdj) to test OBCS as control vector.
965    o pkg/dic:
966      fix two bugs in handling water vapour pressure in carbonate chemistry
967      and air-sea fluxes. Found by Val Bennington and Galen McKinley
968      (add DIC Option = WATERVAP_BUG to recover old results)
969      update output of tutorial_global_oce_biogeo (fwd+AD) & tutorial_dic_adjoffline
970    o adding allowInteriorFreezing option to check for water below freezing point
971      at depth and bring the negative heat anomaly to the surface level
972    o pkgs _fields_load:
973      - extend GET_PERIODIC_INTERVAL to deal with non-periodic case (from pkg/rbcs)
974      - use new S/R GET_PERIODIC_INTERVAL in pkgs:
975        bulk_force, cheapaml, cfc, dic, obcs (+ ctrl/ctrl_get_gen_rec), offline and
976        rbcs to get interpolation weights and time reccord number.
977      - fix multi-threading in aim_fields_load.F
978      - apply EXCH to temp arrays [0,1] after reading in dic_fields_load.F
979    o external_fields_load:
980      new S/R GET_PERIODIC_INTERVAL to calculate which time-record (and linear
981       interpolation weights) to use in a periodic time-series ; do not divide by
982       time-step to convert to integer:
983       - this fixes case where externForcingPeriod is not multiple of time-step
984          (Thanks to Christopher L. Wolfe)
985       - this fixes case where externForcingPeriod is an odd multiple of time-step
986         (was wrong by half of time-step); update results of tutorial_global_oce_in_p.
987      store index of time-record which is currently loaded:
988       - works without any assumption on sequence of calls to EXTERNAL_FIELDS_LOAD ;
989       - needed for the adjoint but not yet used because of extensive recomputations;
990         (to be fixed soon)
991    
992    checkpoint62v (2011/04/02)
993    o verification/1D_ocean_ice_column added to test Ian Fenty's
994      pkg/seaice_growth.F modifications for improving sea ice code differentiability
995    o update output of exp4, internal_wave, seaice_obcs, tutorial_plume_on_slope
996      (new velocity statistics after changing maskInW & maskInS definition)
997    o pkg/generic_advdiff with OBCS:
998      use maksInW & maskInS in advective flux and in biharmonic diffusion calculation:
999      equivalent to assumption of no tracer gradient outside the OB region.
1000      This will affect the results if using obcs+biharmonic diffusion.
1001      update output_adm.txt of experiment bottom_ctrl_5x5 (not expected since no obc)
1002    o pkg/obcs:
1003      change definition of maskInW & maskInS: leave OB edges inside (maskIn=1)
1004      (e.g., maskInW(OB_Ie)=1 ) so that velocity normal-component at OB is still
1005      in Interior region. No impact on solution but affects Velocity monitor stats.
1006    o pkg/ptracers (adjoint)
1007      New option AUTODIFF_PTRACERS_SPLIT_FILES for writing separate
1008      tape file for each tracer
1009    o model/inc/src and pkg/autodiff: add parameters that allow to turn
1010      of parts of the adjoint code at run time. For now, there are only
1011      useKPPinAdMode, useGMrediInAdMode, and useSEAICEinAdMode. These
1012      parameters are set in data.pkg.
1013      This is the lazy coward's version of doing this, but still useful for
1014      debugging. In order to do it right, everything needs to be moved to
1015      pkg/autodiff.
1016    o pkg/autodiff: fix global_sum_tile_ad.F by resetting adsumPhi at
1017      the end; this fixes the adjoint balancing code for open boundaries.
1018    o pkg/ctrl:
1019      - change behavior of xx_${varname}period to be analogous to exf-conventions:
1020        xx_${varname}period =   0.,  means time-independent control part
1021        xx_${varname}period = -12., means one-year-periodic monthly control part
1022      - introduce helper routine ctrl_init_rec (part of ctrl_init.F) to
1023        clean up ctrl_init a little, remove unused variables
1024      - ctrl_init: fixed the handling of the start/endrec for obcs-variables
1025      - move "call cal_GetMonthsRec" from s/r ctrl_get_gen to s/r ctrl_get_gen_rec
1026    
1027    checkpoint62u (2011/03/15)
1028    o model/src:
1029      - for the adjoint, change NonLin-FreeSurf initialisation sequence: fill-in
1030        h0Fac from INITIALISE_FIXED and reset hFac to h0Fac in INITIALISE_VARIA ;
1031      - in initialise_varia.F (except for ALLOW_DEPTH_CONTROL) remove 2nd call to
1032        INI_DEPTHS, INI_MASKS_ETC & INI_LINEAR_PHISURF.
1033    o pkg/ctrl/obcs/ecco:
1034      - remove obsolete, unused, and partially broken code:
1035        ctrl_obcsvol/ctrl_obcsbal/ctrl_volflux and code within
1036        ALLOW_CTRL_OBCS_BALANCE
1037      - put a stop statement into ecco/cost_obcsvol.F, but also add
1038        cost_obcsvol to ecco_ad_diff.list
1039    o pkg/ecco: fix counting cost function contributions for obcs (code
1040      by Matt M.) and diffkr for diagnostics
1041    o pkg/ecco, pkg/ctrl, pkg/grdchk:
1042      add cost penalty terms for initial uvel, vvel, eta controls
1043      and I/O for prior error files
1044    o pkg/mdsio:
1045       move mds_check4file.F from eesupp/src to mdsio_check4file.F ; add option
1046       (new argument) to check for tiled file in mdsioLocalDir : this fix the
1047       restart from pickup_som , pickup_dic (& dic_co2atm) with mdsioLocalDir.
1048    o pkg/ctrl:
1049     - ctrl_obcsbal.F, ctrl_obcsvol.F: replace last calls of ctrl_getrec by
1050       ctrl_get_gen_rec, put a stop statement into ctrl_getrec. Remove
1051       unused and superfluous variables
1052     - ctrl_get_gen_rec.F: catch the case of xx_genperiod=0.
1053    o pkg/ecco
1054     - enable adjoint of Stevens OB
1055    o pkg/ctrl/ecco/grdchk:
1056      - remove global declaration of tmpfldx/yz and tmpfldx/yz2.
1057        Fortunately, we do not have any tests for the numerous cpp-flagged
1058        option of "obcs as control parameters" so we will never know
1059        if this is an improvement (but at least now things compile).
1060      - remove an obsolete initialization from ecco_cost_init_barfiles.F
1061      - fix some problems within never used ifdefs to make the code compile
1062    o pkg/obcs:
1063     - Refine Interior mask definition to work with more complex OB (e.g.
1064       if OB_Ie < OB_Iw); In case default setting is not sufficient, allows to
1065       read in Interior mask from file. Check if Interior mask is consistent
1066       with OB list of indices.
1067    o pkg/seaice
1068     - beginning code for a seaice tracer package,
1069       but currently only used for seaice age: SEAICE_AGE
1070       SEAICE_num = 4
1071       iTracer = 1: area-weighted ice age
1072               = 2: volume-weighted ice age
1073               = 3, 4: template for one-year vs. multi-year ice
1074       data.seaice has new namelist SEAICE_PARM03 for arrays related to
1075       SEAICE_num
1076    
1077    checkpoint62t (2011/03/05)
1078    o pkg/obcs:
1079     - obcs_apply_uv.F: change to a 2 steps method, first tangential component;
1080       then normal component. This ensures that the normal component is set
1081       correctly even when it conficts with tangential setting from an other OB.
1082       Affects results of test-experiment seaice_obcs: update the output.txt
1083    o pkg/obcs:
1084     - add code to monitor statistics of dynamical fields at OB.
1085     - take OBCS_BALANCE code out of obcs_calc.F into new S/R OBCS_BALANCE_FLOW :
1086       - fix to OBCS_BALANCE code (right hFac ; deal with simple OB intersection).
1087       - change default: balance the Net inflow through all OB (instead of balancing
1088         each OB separately); keep the old method if setting OBC_balanceFacX < 0.
1089     - switch on useOBCSbalance in dome experiment: only correct Western OB outflow
1090       to match Nortern OB inflow (OBCS_balanceFacN=0).
1091    o pkg/seaice:
1092     - redefined actual sea ice age to be ICEAGE/HEFF ifdef SEAICE_AGE_VOL
1093    o pkg/seaice (seaice_growth v 1.113):
1094     - reverting seaice_growth to v 1.111 in order to have code with exact bit
1095       compatibility with MITgcm_contrib/ifenty/Fenty_seaice_thermo_code_merge
1096       CPP option SEAICE_OCN_MELT_ACT_ON_AREA removed in v 1.112 is reintroduced
1097       runtime flag SEAICEareaFormula is kept but is inactive
1098    o model/src:
1099     - add new param to scale curvilinear grid distance and area when using
1100       a different sphere radius from the grid-files.
1101     - test/check multi-threads EXCH applied to local variable (cg2d_x)
1102    o adjoint:
1103     - enable adjoint of Stevens OB
1104     - add dummy_in_dynamics to enable extraction of ADJrhoinsitu
1105       (a bit delicate because of potentially modified adj. common block structure;
1106       current switch is ALLOW_AUTODIFF_MONITOR_DIAG, could be changed later)
1107    
1108    checkpoint62s (2011/02/15)
1109    o pkg/seaice (seaice_growth v 1.112):
1110     - introduce SEAICEareaFormula run time parameter, which selects the recipe for
1111       computing the ice cover tendency from effective thickness tendencies. Include
1112       Ian Fenty's formula.
1113     - remove 'undef SEAICE_OCN_MELT_ACT_ON_AREA' which may now be achieved using
1114       SEAICEareaFormula.
1115     - simplify notations for the various d_HEFF/d_AREA terms.
1116    o pkg/gmredi:
1117     - add Boundary-Value-Problem bolus transport (Ferrari etal, OM 2010) code
1118       from Christopher Wolfe (UCSD); add partial cell factor in vertical derivative;
1119       add a verification test-run (front_relax.bvp) to test GM_useBVP.
1120    o pkg/seaice (seaice_growth v 1.111):
1121     - for SEAICE_DO_OPEN_WATER_GROWTH, replace Gael's implementation with Ian's.
1122     - the new SEAICE_DO_OPEN_WATER_MELT allows open-water air-sea heat fluxes to
1123       also melt ice.
1124    o pkg/seaice:
1125     - McPhee formula for Ice-Ocean fluxes (provided by Ian Fenty).
1126     - can be used by #define MCPHEE_OCEAN_ICE_HEAT_FLUX in SEAICE_OPTIONS.h
1127    o pkg/cheapaml:
1128     - from Nico Wienders: New version of this package.
1129    o pkg/flt:
1130     - add CPP options to prevent floats to re-enter the opposite side of
1131       a periodic domain (default: keep periodicity)
1132    o pkg/gmredi:
1133     - apply exchange to GM_PsiX,GM_PsiY to get valid values near CS-corners
1134       (needed for multi-dim advection).
1135     - switch on GM Advective form in global_ocean.cs32x15 and update output.txt
1136    o model/src:
1137     - fix wrong re-setting of addMass array (ALLOW_ADDFLUID) for atmospheric run.
1138    o tutorial_tracer_adjsens
1139     - extend to NLFS and replace maskC by hFacC
1140       (change reference output accordingly)
1141    
1142    checkpoint62r (2011/01/24)
1143    o testreport:
1144     - add option -deloutp (-do) to remove output file after successful run
1145     - add option -mfile (-mf) for MPI machile-file and for each test-exp,
1146       extract exact list of procs from this file ; adjust COMMAND by
1147       replacing TR_MFILE & TR_NPROC with local machile-file & Nb of MPI procs.
1148    o pkg/ecco: replace old ineffective way of penalizing deviations from
1149      first guess (of obcs) with code by Matt Mazloff
1150    o pkg/ctrl: add code that allows the use of ALLOW_OBCS?_CONTROL without
1151      exf/cal
1152      - ctrl_init: fix initialisation (computation of diffrec) for obcs-ctrl
1153        and handle case of obcs?period == 0
1154        Not affected by these changes: There is still an inconsistency in
1155        the computation of start/endrec for the obcs variables for ALLOW_CAL
1156        defined (see comment by Menemenlis, 7-Mar-2003)
1157      - make S/R ctrl_get_gen_rec return something meaningful even if
1158        ALLOW_CAL is not defined
1159      - ctrl_getobcs?: simplify code so that it does not need to use
1160                       S/R exf_swapfields
1161    o testreport:
1162       allow to test MPI with different number of processors for each experiment:
1163       create file "SIZE.h.mpi" in each build dir.
1164       Note: update of "-command" argument not yet implemented.
1165    o model/src, pkg/autodiff, pkg/ecco, pkg/seaice:
1166      alleviate the need for additional 3D tapes when using
1167      the non-inear free surface in the adjoint. This is done
1168      by adding an 'update' of hfacc etc. to their current
1169      value at the beginning of forward_step.F.
1170    o pkg/seaice
1171      seaice_lsr: move stress-divergence computations out of outer pseudo-
1172      timestepping loop
1173    o pkg/obcs/obcs_prescribe_read.F: move 'CALL OBCS_EXTERNAL_FIELDS_LOAD'
1174      up, so that the calls of the ctrl_* subroutines are really at the end
1175      of the routine.
1176    o pkg/gmredi:
1177      allow to specify a 2-D horizontal map and a 1-D vertical profil
1178      as scaling factor for Isopycnal diffusivity (Redi) and GM diffusivity.
1179    o pkg/seaice:
1180      move lsr iterations from seaice_dynsolver to seaice_lsr.
1181    o pkg/seaice:
1182      reduce memory footprint of seaice mutldim advection tapes,
1183      by using a 2D tape independent of the generic_advdiff ones,
1184      and setting GAD_AREA=1 etc. rather than GAD_AREA=101 etc.
1185    
1186    checkpoint62q (2010/12/29)
1187    o model/src:
1188      - check horizontal grid-spacing for unset or zero/negative values.
1189      - change AD test hs94.1x64x5 to be truly a 2-D set-up.
1190    o pkg/flt:
1191      - use (recent) mdsio S/R MDS_READVEC_LOC instead of local FLT_MDSREADVECTOR
1192      - precision of input and output files set according to readBinaryPrec
1193        and writeBinaryPrec (previously always 64.b), pickup remains at 64 bits.
1194      - initial float position from tiled file was not converted to index space
1195        (looks like a bug): fixed to make it similar to initial pos. global file.
1196    o global_ocean.cs32x15:
1197       change SIZE.h of AD set-up to get same tiling as with MPI.
1198       Update output_adm, output_adm.thsice (pass@14) & output_adm.seaice (fail@11)
1199    o model/src:
1200       add flag to control printing of domain fields (bathymetry, hFac ...) in
1201       ini_mask_etc (call to plot_fieds_xy*).
1202    o pkg/thsice:
1203       if useEXF, some forcing fields are not valid in overlap: fixed by computing
1204       over the interior only + apply EXCH at the end (like with SEAICE advection).
1205    o pkg/mdsio:
1206      - add 2 arguments to S/R MDS_PASS_R4/8toRL/S for overlap size of buffer
1207        to copy to/from, so that it can be used to replace MDS_PASS_WH_R8toRL/RS.
1208      - change barrier call for safe multi-threads access to 3-D shared buffer.
1209      - MDS_READ/WRITEVEC_LOC use buffers from MDSIO_BUFF_3D.h (instead of local ones)
1210      - replace call to MDS_PASS_WH_R4/8toRL with call to MDS_PASS_R4/8toRL and
1211        remove the 4 S/R MDS_PASS_WH_R4/8toRL/S.
1212    o pkg/flt:
1213      - add fourth-order Runge-Kutta integration
1214      - add basic exch2 support (only 1 facet supported so far!)
1215    o pkg/mdsio+rw:
1216      new S/R to read local (or tile independent) vector (read counterpart of
1217       mds_writevec_loc, and front-end write_glvec_rl/rs).
1218    o global_ocean.cs32x15: additional input_ad.seaice experiment
1219        that uses pkg/seaice rather than pkg/thsice.
1220        (using multidim advection for seaice)
1221    o towards more F95 syntax for array specification in namelist:
1222      - change "data.diagnostics" (data.ptracers was changed before checkpoint62p)
1223        of all verification experiments.
1224           e.g.:    line: fields(1,3)='ETAN    ','ETANSQ  ',
1225          was changed to: fields(1:2,3)='ETAN    ','ETANSQ  ',
1226      - finish adding "-DNML_EXTENDED_F77" to DEFINES list in pgf77 and g77 optfiles
1227    o global_ocean.cs32x15: additional input.seaice experiment
1228        that uses pkg/seaice rather than pkg/thsice.
1229    
1230    checkpoint62p (2010/12/17)
1231    o pkg/thsice: rename (ad tape index) iicekey as ticekey, and move it
1232        to THSICE_SIZE.h to avoid conflict with pkg/seaice.
1233    o pkg/seaice: add seaice_diffusion.f seaice_map_thsice.f to adjoint.
1234        allow for use of multim. advection in seaice adjoint.
1235    o pkg/seaice: add diagnostics for snow precipitation and sublimation flux
1236      - first attempt to close budgets by taking into account the freshwater
1237        flux implied by the sublimation of snow and ice. So far only the
1238        volume budget is closed, turn on with soon-to-be-retired-again CPP-Flag
1239        SEAICE_ADD_SUBLIMATION_TO_FWBUDGET
1240    o eesupp/src:
1241      new S/R with new option (NML_EXTENDED_F77) to change array specification
1242      from F95 standard to commonly accepted extended F77 form.
1243      This would allow to use F95 syntax in namelist (needed with gfortran 4.4.5)
1244      and to revert back to the original syntax (with -DNML_EXTENDED_F77)
1245      for less tolerant f77 compiler (e.g., pgf77, g77).
1246    o globalFiles:
1247      commented out in parameter file "data" since it's not safe with MPI
1248      (e.g., wrong on aces); keep it if useSingleCpuIO=T (but not doing much
1249      in this case); no longer commented out in restart test (tst_2+2).
1250    o add adTapeDir to specify a special directory where adjoint tapes are
1251      written/read (adread_adwrite.F). adTapeDir is specified in data/PARM05
1252      and cannot be used together with mdsioLocalDir.
1253    o nesting pkgs:
1254      - packages_init_variables : put call to OBCS_INIT_VARIABLES in last position
1255      - update Gianmaria's Nesting pkgs (from Contrib/nesting_sannino)
1256      - add parameter files + utils dir + output from short run on beagle.
1257    o pkg/seaice:
1258        fix seaice_growth.F store directives; update results of exp. lab_sea.ad
1259    o pkg/seaice: explicitly store tsurfloc in seaice_solve4temp.F to avoid
1260      unnecessary copying in adjoint code, requires new parameter NMAX_ITER
1261    
1262    checkpoint62o (2010/11/25)
1263    o pkg/exf:
1264      - change CPP option EXF_VERBOSE to run-time logical param exf_verbose.
1265    o pkg/seaice:
1266      - seaice_ocean_stress: split a loop for better vectorization of the
1267        adjoint code
1268      - seaice_growth.F: fix bug in conservation of freshwater connected to
1269        capping of heff, put contribution into d_HEFFbyNEG
1270      - replace irritating parameters SEAICE_latentWater/Ice and SEAICE_sensHeat
1271        by something more sensible (parameters that are what their name implies)
1272      - change some defaults, so that by default exf-parameters are used for
1273        things like rhoAir, cpAir,latent/sensible heat parameters, in order
1274        to reproduce the old results, many data.seaice now contain funny values
1275        for cpAir and latent heat of sublimation
1276    o packages_readparms.F: move exf_readparms up in line so that
1277        exf-parameters are visible for other packages (e.g. seaice)
1278    o debugMode & debugLevel=2:
1279      - differentiate between debugMode & debugLevel=2:
1280        debugMode: controls printing of debug messages (sequence of S/R calls).
1281        debugLevel: controls printing of algorithm intermediate results and stats.
1282      - remove "if debugLevel=2 => debugMode" but keep "debugMode =>  debugLevel=2";
1283        => allows to print debug-stats without all sequence of call messages.
1284      - switch control of debug print from debugLevel to debugMode in many S/R.
1285    o pkg/obcs (obcs-sponge):
1286        fix bug that was introduced on Oct 25 (in dynamics.F v1.151): put back the
1287        call to OBCS_PRESCRIBE_EXCHANGES (need to exch gU,gV when using obcs-sponge)
1288    o pkg/generic_advdiff:
1289      - record overlap minimum size for each advection scheme;
1290      - refine criteria on overlap minimum size;
1291      - check and stop (in gad_check) if overlap size is too small.
1292    o pkg/obcs:
1293      - with ptracers: remove multiple calls to obcs_apply_ptracer (only done
1294        once, in ptracers_implicit.F)
1295      - with seaice: remove test on empty file name in obcs_apply_seaice (always
1296        apply OB values when tile has OB)
1297    o model/src, coriolis setting:
1298      - integer parameter "selectCoriMap" (=0,1,2) replaces 3 logical
1299        useConstantF, useBetaPlaneF, useSphereF ; can now read coriolis from
1300        files (selectCoriMap=3) with any grid.
1301      - add parameter "fPrime" for constant second Coriolis coeff (default=0).
1302    o pkg/seaice/seaice_growth.F:
1303        a few cosmetic changes that reduce the number of lines of code
1304    o pkg/obcs: add boundary conditions following Stevens (1990)
1305      - the code follows old MOM/NAOSIM code
1306      - so far it is only implemented for the eastern and western boundaries
1307        and NOT for pTracers
1308    o pkg/rbcs:
1309      - replace rbcsInIter by rbcsForcingOffset, the time in seconds at the
1310        beginning of the first rbcs forcing period.
1311      - add option rbcsSingleTimeFiles that makes rbcs read forcing data like the
1312        offline package, i.e., one file per time, labeled by iteration number;
1313        deltaTrbcs sets the timestep with which the data was generated;
1314        rbcsIter0 is the forcing iteration corresponding to rbcsForcingOffset.
1315      - rbcsForcingCycle=0 makes forcing non-cyclic.
1316      - make arithmetic safe for negative times and odd forcing periods.
1317    
1318    checkpoint62n (2010/11/09)
1319    o pkg/seaice:
1320        fix masking in free-drift S/R ; update results of exp. lab_sea.fd
1321    o pkg/obcs:
1322       New S/R to copy tracer value from the OB location to narrow band region
1323        (width = same as overlap) beyond the OB: preserve OB value (needed for
1324        high-order scheme) which were overwritten by EXCH call if in overlap
1325        region. Applied to theta, salt, ptracer and advected seaice variables.
1326       With seaice: use maskInC in similar way as in gad_advection.F,
1327        in seaice_advection.F and advect.F.
1328       Update output of experiment seaice_obcs and change exp4 to test OBCS with
1329        4th order Adv.Scheme. for pasive salt and ptracer.
1330    o tools/genmake2:
1331      - when looking for an optfile (not specified), only search for Fortran compiler
1332        (remove sym-link test + setting of CPP + makedepend check + C-compiler check)
1333      - in get_fortran_c_namemangling: use "$CC $CFLAG" to compile C test programm
1334        (instead of "$MAKE genmake_test.o" since an existing Makefile can be wrong)
1335      - set default for CPP to "cpp -traditional -P" (was the case without specifying
1336        an optfile, but otherwise default was just "cpp".
1337      - comment out PLATFORM=$p_PLATFORM (no idea where p_PLATFORM comes from)
1338      - when "CC" is not set in the optfile, look for possible C compiler
1339        (instead of just setting CC=cc)
1340      - put back version v.169 modif (from 2008/02/15), was dropped in v.173 changes:
1341        => add a ".F" to ".o" rule for source files with no "#include" (such as
1342           port_rand.F); otherwise, default ignores FOPTIM and just uses FFLAGS.
1343      - move gfortran before g77 in list of possible Fortran compiler (consistent
1344        with reference compiler switch from g77 to gfortran)
1345    o pkg/seaice:
1346      o remove SEAICE_OLD_AND_BAD_DISCRETIZATION-code, add a test to
1347        seaice_check that stops the model, when the CPP flag is used.
1348      o seaice_growth.F: make capping of ice volume conserving by returning the
1349        capped ice as freshwater to EmPmR. This does not change the verification
1350        experiments but will change runs where the capping is acutally active
1351    o change reference platform+compiler from faulks+g77 to baudelaire+gfortran
1352      (except the 2 fizhi test exp.); update output of exp.: bottom_ctrl_5x5,
1353         global_ocean.cs32x15 (icedyn, thsice, AD thsice), global_ocean_ebm (AD),
1354         lab_sea (fd, hb87, salt_plume), MLAdjust (3/5) and vermix (dd)
1355    o tools/genmake2:
1356      - merge genmake_warnings & genmake_errors into 1 log file: "genmake.log")
1357      - change DUMPSTATE default to false (can use "-ds" option to switch it to T)
1358      - clean previous genmake log files before anything else.
1359      - change Makefile to remove testreport log files (*.tr_log) and genmake log
1360        files only with "CLEAN" target (instead of "Clean");
1361    o pkg/generic_advdiff:
1362      Change OBCS in multiDim advection (gad_advection.F):
1363       Use maskInC to prevent intermediate update of tracer-field in OB regions,
1364       thus keeping current-time-step OB values; and remove the call to OBCS_APPLY
1365       which were applying future time-step OB values.
1366      This way, all explicit calculations use current-time-step OB values
1367       (simpler and more consistent).
1368      Affects results when set-up uses time-varying OBC and multi-dim advection;
1369       update output of experiment seaice_obcs.
1370    o pkg/seaice:
1371      move OPTIONS (formerly locally defined) to SEAICE_OPTIONS.h:
1372       this includes SEAICE_GROWTH_LEGACY (+ SEAICE_DO_OPEN_WATER_GROWTH &
1373         SEAICE_OCN_MELT_ACT_ON_AREA ) and SEAICE_SOLVE4TEMP_LEGACY.
1374      Default (pkg/seaice/SEAICE_OPTIONS.h) is to define SEAICE_SOLVE4TEMP_LEGACY
1375       but leave SEAICE_GROWTH_LEGACY undef ; For now, keep verification exp
1376       unchanged (SEAICE_GROWTH_LEGACY defined in */code*/SEAICE_OPTIONS.h)
1377    o pkg aim (2010/10/26):
1378      - Introduce ALLOW_INSOLATION, moving toward a more general incoming solar radiation
1379        formulation with obliquity, eccentricity, ... as run-time parameters,
1380      - Introduce diagnostics for top-of-the-atmaophere incoming solar radiation and
1381        upward shortwave radition at the surface (all-sky and clear-sky).
1382  o pkg/obcs:  o pkg/obcs:
1383    - writing sections with globalFiles=T does not work: switch to tiled-files    - writing sections with globalFiles=T does not work: switch to tiled-files
1384      when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).      when writing sections for OBCS (change pkg/rw/write_rec.F accordingly).
# Line 420  o tools/build_options: Line 1795  o tools/build_options:
1795      but keep the former optfile for few weeks for smooth transition      but keep the former optfile for few weeks for smooth transition
1796  o pkg/ecco  o pkg/ecco
1797    - allow user defined cost function contributions    - allow user defined cost function contributions
1798          CPP: ALLOW_USERCOST_CONTRIBUTION       CPP: ALLOW_USERCOST_CONTRIBUTION
1799          USAGE: compute contributions in cost_usercost_all.F       USAGE: compute contributions in cost_usercost_all.F
1800    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.    - note: this is identical to what ALLOW_GENCOST_CONTRIBUTION once was.
1801        the two options are complementary.        the two options are complementary.
1802  o pkg/smooth  o pkg/smooth

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