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revision 1.1495 by jmc, Fri Aug 26 20:27:15 2011 UTC revision 1.1558 by jmc, Wed Dec 21 22:11:10 2011 UTC
# Line 4  $Name$ Line 4  $Name$
4      Notes on tags used in MITgcmUV      Notes on tags used in MITgcmUV
5      ==============================      ==============================
6    
7    o pkg/exf (interpolation):
8      - add a set of run-time param ({inputfield}_interpMethod), one for
9        each interpolated input field, to select the interpolation method
10        with a value of zero switching off the interpolation;
11      - print interpolation parameters to standard output;
12      - refine exf_check.F accordingly ; stop if USE_NO_INTERP_RUNOFF is defined
13        (to use instead runoff_interpMethod=0 in data.exf).
14      - simplify default setting of interpolation parameters (for all fields,
15        set position to match model grid cell-center position, leading to trivial
16        interpolation in case of regular Lat-Lon grid) and fix for the case of
17        non-uniform delY.
18    o pkg/exf/exf_radiation.F: add the factor ocean_emissivity to lwdown, for
19       within #ifdef EXF_LWDOWN_WITH_EMISSIVITY/#endif. Unless ocean_emissivity=1.
20       this factor is absolutely required, because the lw exitance (= out-going
21       long wave radiation) is emissivity*stefanBoltzmann*T^4 + rho*lwdown,
22       where the reflectivity rho = 1-emissivity for conservation reasons. Once
23       this is established, we can remove the CPP-Flag (if we want to).
24    o pkg/seaice:
25      - qualify a stop statement in S/R seaice_check: EXF_READ_EVAP and
26        ALLOW_BULKFORMULAE are only required if SEAICE_EXTERNAL_FLUXES is defined
27      - sort out emissivity and long wave radiation, step 1: make SEAICE_emissivity
28        what the name implies (and not emissivity*BoltzmannConstant), this means
29        the old default value of 5.5e-8 now means
30        5.5e-8/5.670e-8 = 0.97001763668430343479 as ocean_emissivity in
31        S/R exf_readparms
32      - FV-discretization of the B-grid LSOR solver, turn on with
33        SEAICE_LSRBNEW. This new solver also involves a slight re-organization
34        of the calling routine dynsolver, so that B and C-grid code look a
35        little more alike.
36      - fix index bugs in ostres.F (B-grid code)
37    o pkg/seaice/seaice_ocean_budget.F: change (unused) code to make it look better
38    o pkg/seaice/seaice_readparms.F: make ocean_emissivity*stefanBoltzmann the
39      default for SEAICE_emissivity, if useEXF; requires setting a wrong
40      parameter value in global_ocean.cs32x15/input.seaice/data.seaice for
41      backward compatiblity
42    o model/src: use sigmaR in calc_ivdc
43    
44    checkpoint63g (2011/12/16)
45    o pkg/seaice/seaice_growth.F:
46      fix heat conservation of the coupled ocean-seaice system.
47      when SEAICE_HEAT_CONSERV_FIX is defined, the mismatch of
48      solid vs liquid water treatment is resolved via QNET.
49    o pkg/seaice/seaice_growth.F:
50      add missing term for sublimation in saltFlux, which was breaking conservation.
51    o pkg/seaice/seaice_model.F:
52      Remove this patholigical case treatment in evolution branch,
53      where it is un-necessary and breaks conservation.
54      Update global_ocean.cs32x15/results accordingly for
55      output.seaice.txt output_adm.seaice.txt and output_adm.seaice_dynmix.txt
56    o model/src:
57      useRealFreshWaterFlux: remove masking of EmPmP (using maskInC) in
58      external_forcing_surf.F and apply mask directly in S/R SOLVE_FOR_PRESSURE.
59    o pkg/obcs:
60      modify Stevens boundary conditions so that S/R obcs_calc_stevens computes
61      tendency for temperature and salinity that is then applied to update
62      theta and salt in S/R obcs_apply_ts; this requires proper masking of all
63      horizontal advection and diffusion contributions on the boundary (in
64      S/Rs gad_advection, gad_calc_rhs, gmredi_rtransport, gmredi_calc_diff), and
65      removing the mask in S/R timestep_tracer. The advantage of this approach is
66      that the updated tracer values include contributions from the surface
67      forcing and vertical diffusion.
68      This modification changes exp4.stevens because of vertical diffusion.
69    o model/src:
70      change non-curvilinear grid setting to also work with exch2 + blank tiles:
71      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
72        face dimensions.
73      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
74        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
75        and INI_SPHERICAL_POLAR_GRID.
76      change test-experiment global_ocean.90x40x15:
77      - split the domain in many more tiles (9x4 tiles of 10x10 each);
78      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
79      - update results of both test (std & dwnslp).
80    o pkg/diagnostics/diagstat_calc.F: fix problem with non-initialised halos in
81       tmp-fields for TARGET_NEC_SX at the cost of extra loops and less vectorisation
82    o model/src:
83      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
84        and fix initialisation when using sigma-coords.
85    o model/src:
86     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
87       to their current value at the beginning of forward_step.F": add a new run-time
88       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
89     - set doResetHFactors=T in the following test exp:
90        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
91        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
92        and tutorial_global_oce_in_p (nonLinFS in p)
93    o pkg/ecco
94      - added IES cost term
95    o verification/advect_xz
96      - scale down the depth by 1/100 (from 200 km to just 2.km)
97      - add secondary test using divergent flow, r-star and implicit vertical advection.
98      - add note (check_conserve_TS.txt) and matlab script to check global
99        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
100    o pkg/rbcs:
101      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
102    o pkg/obcs (Stevens BCs):
103      - fix various problems in the phase speed computations of the Stevens
104        boundary conditions:
105        - sign error for western and southern boundaries,
106        - time tendencies were underestimated by factor of dTracerLev and some just
107          zero (for multidim advection schemes) -> now estimate time tendencies
108          from difference between previous (n) time level and the one before (n-1);
109          this requires storing a field per tracer per boundary, also in the pickup
110          files.
111        - replace deltaTmom in cflMer/Zon computation with dTracerLev
112        - set default phase velocity to cflMer/Zon
113      - update verification experiment exp4.stevens
114    o pkg/generic_advdiff (implicit_r):
115      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
116        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
117      - fix implicit vertical diffusion or advection with NonLin FreeSurf
118        (was using current recip_hFacC instead of future recip_hFacC): set future
119        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
120        solver S/R ;
121      - fill diagnostics of vertical advective fluxes (computed from tendency)
122        when using implicit vert. advection;
123      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
124         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
125         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
126         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
127    o pkg/diagnostics:
128      - add diags for T & S tendency which goes through Adams-Bashforth.
129    
130    checkpoint63f (2011/11/30)
131    o pkg/obcs/obcs_calc_stevens.F:
132      - join some loops to reduce number of if-statements
133      - fix a bug in code for northern and southern boundaries.
134    o pkg/seaice/seaice_init_varia.F
135      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
136        caused zero ice-velocities for the B-grid code
137    o pkg/seaice/seaice_init_fixed.F
138      - fix a bug in the initialisation of the second metric terms
139        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
140      - this affects all seaice configurations with useCurviLinearGrid = .true.
141        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
142        = .true. (default)
143      - the only verification experiment affected is global_ocean.cs32x15:
144        icedyn, seaice, and seaice_dynmix (AD)
145    o pkg/thsice/thsice_diagnostics_state.F
146      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
147        not contain garbage that can lead to surprises in diagstats_calc.F
148    o model/src:
149      - move bi,bj loops inside INTEGR_CONTINUITY ;
150      - call INTEGR_CONTINUITY directly from forward_step.F
151        (previously called from momentum_correction_step.F)
152      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
153        forward_step.F and pkg/ecco/the_main_loop.F
154    o model/src/do_oceanic_phys.F:
155      - reset addMass to zero only if useICEFRONT ;
156      - separated k-loop for rhoInSitu calculation ;
157      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
158        and at constant T,S (= WdRHOdP);
159      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
160        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
161        transport of locally-referenced potential density);
162        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
163    o gluemnc:
164      - replace ncrcat with ncks when adding variables to *.glob.nc
165      - change the way variables without record dimensions are handled so that
166        files that have variables with and without record variables can be glued:
167        add a record dimension with a new unique name to be able to differentiate
168        between variable with and without a-prior record dimensions. Remove
169        this record dimension before adding the variable to the *.glob.nc file.
170        This procedure automatically works also for grid.*.nc files that do not
171        have any record dimension.
172    o verification/cpl_aim+ocn:
173      - generate new reference output on baudelaire (gfortran, mpich2) (previously
174        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
175    o pkg/obcs/obcs_calc_stevens.F:
176      - add code for northern and southern boundaries.
177      - reorder some loops to save some operations and so that drFBar can be scalar
178    o model/src:
179      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
180        truncation) and add diagnostics for Adams-Bashforth tendency increment.
181      - update test-exp. AD output:
182        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
183      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
184        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
185        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
186        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
187        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
188        tutorial_plume_on_slope.
189    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
190      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
191      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
192      does not even come with an F77 compiler anymore, this should not be
193      a limitation
194    
195    checkpoint63e (2011/11/06)
196    o pkg/seaice adjoint of LSR:
197      - substantially rework STORE dirs.
198      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
199        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
200        and only perform SOLV_MAX_FIXED adjoint iters.
201        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
202        always goes to same record, meaning that the last forward field will be
203        the one used in the adjoint - an approximation.
204      - now produces non-zero LSR-related gradients, and acceptable gradients for
205        An's zonal (x-z) test case (to be checked in)
206      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
207        (but these are screwed up by the thermodynamics in the first place);
208        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
209        output_adm.txt also reflects changes to seaice_lsr
210      - global_ocean.cs32x15:
211        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
212          (output_adm.seaice.txt was updated)
213        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
214          (output_adm.seaice_dynmix.txt)
215    o test-exp. exp4+stevens:
216      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
217    o pkg/seaice (lsr solver):
218      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
219        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
220      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
221      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
222        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
223      - compute (with new S/R) and print initial (+ free-driff sol. if available)
224        and final residual of linearised system.
225    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
226      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
227    o pkg/obcs: Stevens BCs (still only for east and west)
228      - fix Stevens BCs by using intermediate velocities of previous
229        time step as "baroclinic" contribution rather velocity of one grid cell
230        inside the boundaries; more consistent but makes the entire treatment
231        more complicated, requires new pickup files and two new S/Rs:
232        obcs_copy_uv_n and obcs_save_uv_n
233        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
234        (undefined by default)
235      - silently move computation of some grid factors into separate loops to
236        save some recomputations
237      - add a hack for non-linear free surface
238      - add a verification experiment to exp4 that tests this code
239    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
240    
241    checkpoint63d (2011/10/25)
242    o pkg/obcs + seaice-dynamics:
243      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
244        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
245        values (consistent with an implicit method).
246      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
247        return to older implementation (same results as before); note that none of
248        the "experimental" OBCS_SEAICE options are implemented in the new version.
249      - switch test exp. seaice_obcs to use new version (update output).
250    o pkg/seaice:
251      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
252      - add parenthesis in Water-Ice drag calculations (evp & lsr);
253      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
254        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
255      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
256        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
257    o pkg/layers:
258      - Include potential density as new coordinate (Thanks to David Munday)
259    o pkg/dic:
260      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
261        carbonate computation/output to CALC_PCO2_APPROX
262    o pkg/generic_advdiff
263      - make TAF generate code that vectorizes:
264        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
265    o model/src:
266      - improve vectorization also for adjoint code of
267        solve_tridiagonal and solve_pentadiagonal. As this requires up to
268        5 new 3D-fields, this code is only turned on for the combination of
269        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
270        for singular matrix check (only for TARGET_NEC_SX).
271      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
272        ALLOW_AUTODIFF. This flag now needs to be set outside of
273        solve_tri/pentadiagonal.F
274    o pkg/exf:
275      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
276        optional namelist EXF_NML_OBCS).
277      - add many debug-print (to trace down where pkg/cal error msg comes from)
278    o pkg/mom_vecinv/mom_vi_hdissip.F
279      - rearrange loops so that vectorization is improved and in particular
280        the adjoint routine vectorizes. The code is a little longer now, but I
281        think easier to read.
282        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
283    o pkg/seaice:
284      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
285    o pkg/exch2:
286      - alternative code (without tile x tile matrix) for cumulated (global) sum;
287        used as default; keep using matrix version in adjustment.cs-32x32x1.
288    o tools/build_options:
289      - after merging some MPI and/or multi-threads specific optfiles so that
290        the modified default optfile support both built (using genmake2 -mpi
291        for the MPI built, using genmake2 -omp for OpenMP built),
292        move now obsolete optfiles to tools/build_options/unsupported/
293       (add copy of email sent to support list in doc/optfiles_changes.txt)
294    
295    checkpoint63c (2011/09/28)
296    o pkg/ebm:
297      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
298        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
299    o pkg/seaice (SItracer pickup)
300    * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
301      To be done:
302      - thorough testing of missing fields in S/R seaice_read_pickup
303      - thorough matching between generic tracers and specific fields used
304        (e.g. volume-weighted age, area-weighted age, salinity, ...)
305    o pkg/grdchk:
306      - all procs calculate and print finite-difference gradient (for testreport)
307      - change description output used by testreport;
308      - AD testing: also compare and report Finite-difference gradient;
309        => update all output_adm*.txt
310    o test exp. global_ocean_ebm:
311      - switch back useRealFreshWaterFlux (no problem anymore with run-off);
312        and turn on exactConserve; update (fwd) output.
313    o pkg/seaice (LSR):
314      - print to STDOUT number of solver iterations at SEAICE_monFreq interval.
315      - modify solver to deal cleanly with u/v switch at face edges (CS-grid):
316        * identical results with non-CS topology (but save up to half of EXCH calls)
317        * no much changes in cs-32 verification tests since no ice at face edges
318         (differences due to convergence criteria, since nb of iterations changed)
319        * expect some differences on lat-lon-cap grid.
320        update FWD results of global_ocean.cs32x15 test exp. (icedyn & seaice)
321    o pkg/exch2:
322      - add new CPP option to disable Cumul-Sum matrix (to save storage when using
323        many tiles); until alternative coding is added, just add a stop.
324    o pkg/kpp:
325      - move ptracer/salt correction to KPP diffusivity from calc_3d_diffusivity.F
326        to S/R KPP_CALC_DIFF_PTR (+ add tracer-index to argument list).
327    o optfiles:
328      - merged few MPI specific (*+mpi*) and multi-threads specific (*+mth) optfiles
329        into corresponding standard one, which now support different build:
330        (when using "genmake2 -mpi" for MPI built, "genmake2 -omp" for OpenMP built)
331      - add "darwin_amd64_gfortran" optfile (initially from Constantinos, tested by Gael)
332    o pkg/obcs (seaice):
333      - add missing EXCH for uIce,vIce after applying OBCS;
334      - remove S/R EXF_SWAPFFIELDS_X/Y , disable S/R EXF_SET_OBCS_X/Y by adding
335        argument = number of levels to S/R EXF_SWAPFFIELDS_XZ/YZ and S/R
336        EXF_SET_OBCS_XZ/YZ ; update obcs_exf_load.F;
337      - fix EXF_SET_OBCS_XZ/YZ for multi-threaded (assuming loaded arrays are shared)
338      - verification exp. seaice_obcs: split domain in 2 tiles ; add SIZE.h_mpi
339        and eedata.mth for MPI and mutlti-threaded testing.
340    o pkg/flt:
341      - make FLT EXCH working with multi-threads (and MPI + multi-threads);
342      - use buffer for floats IO (trajectories & profiles); size set in FLT_SIZE.h;
343      - fix pickup and trajectories + profiles output with multi-threads;
344      - add parameter to select group of fields to write along trajectory and
345        profile (default unchanged);
346      - only call PORT_RAND* function when flt_noise <> 0;
347      - add multi-threaded test for verification exp. flt_example.
348    o eesupp/src:
349      - fix S/R ALL_PROC_DIE for MPI+multi-threads.
350      - USE_OMP_THREADING: check that number of threads (from eedata) matches
351        actual number (from env.var. setting).
352    o pkg/ebm:
353      - fix multi-threading in ebm_area_t.F ; clean-up EBM.h header file.
354      - add multi-threaded test for verification exp. global_ocean_ebm
355    
356    checkpoint63b (2011/08/29)
357    o pkg/ebm:
358      - fix sign of runoff;
359      - update directly forcing fields (Qnet,EmPmR) to use standard
360        external_forcing_surf.F (remove ebm_forcing_surf.F);
361      - avoid loading forcing fields a 2nd time (1rst time from ini_forcing.F);
362      - set either tauThetaClimRelax (in data) or tauThetaZonRelax (in data.ebm)
363        and apply relaxation towards corresponding SST field (2-D map or ZonAver).
364      - update global_ocean_ebm parameters file data and update output (fwd+ad).
365  o verification/matrix_example:  o verification/matrix_example:
366    - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for    - split domain in 8 tiles (2x4); add SIZE.h_mpi and eedata.mth for
367      MPI and mutlti-threaded testing.      MPI and mutlti-threaded testing.

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