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revision 1.1505 by jmc, Mon Sep 26 19:00:49 2011 UTC revision 1.1547 by jmc, Tue Dec 13 00:12:42 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 model/src:
8      change non-curvilinear grid setting to also work with exch2 + blank tiles:
9      - move delX,delY to new header file (SET_GRID.h) and adjust length to 1rst
10        face dimensions.
11      - new S/R INI_LOCAL_GRID to define model tile-local grid (using same units
12        as delX,delY) and called from S/R INI_CARTESIAN_GRID, INI_CYLINDER_GRID
13        and INI_SPHERICAL_POLAR_GRID.
14      change test-experiment global_ocean.90x40x15:
15      - split the domain in many more tiles (9x4 tiles of 10x10 each);
16      - switch to exch2 and remove 1 blank-tile (but only for MPI test).
17      - update results of both test (std & dwnslp).
18    o model/src:
19      - take sigma-coords related code out of update_etah.F into new S/R UPDATE_ETAWS
20        and fix initialisation when using sigma-coords.
21    o model/src:
22     - improve Gael's changes from Jan 14, 2011 "addition of an 'update' of hfacc etc.
23       to their current value at the beginning of forward_step.F": add a new run-time
24       switch "doResetHFactors" (default=false) and use it to do (or not) the resetting.
25     - set doResetHFactors=T in the following test exp:
26        global_ocean.90x40x15/input (rStar) & input.dwnslp (linFS),
27        global_ocean.cs32x15/input.seaice (rStar), hs94.cs-32x32x5/input.impIGW (linFS)
28        and tutorial_global_oce_in_p (nonLinFS in p)
29    o pkg/ecco
30      - added IES cost term
31    o verification/advect_xz
32      - scale down the depth by 1/100 (from 200 km to just 2.km)
33      - add secondary test using divergent flow, r-star and implicit vertical advection.
34      - add note (check_conserve_TS.txt) and matlab script to check global
35        conservation of T & S with NonLin-FreeSurf and Adams-Bashforth.
36    o pkg/rbcs:
37      - add missing relaxUFile & relaxVFile in namelist (in rbcs_readparms.F).
38    o pkg/obcs (Stevens BCs):
39      - fix various problems in the phase speed computations of the Stevens
40        boundary conditions:
41        - sign error for western and southern boundaries,
42        - time tendencies were underestimated by factor of dTracerLev and some just
43          zero (for multidim advection schemes) -> now estimate time tendencies
44          from difference between previous (n) time level and the one before (n-1);
45          this requires storing a field per tracer per boundary, also in the pickup
46          files.
47        - replace deltaTmom in cflMer/Zon computation with dTracerLev
48        - set default phase velocity to cflMer/Zon
49      - update verification experiment exp4.stevens
50    o pkg/generic_advdiff (implicit_r):
51      - fix implicit vertical advection conservation with AB and/or NonLin-FreeSurf
52        (remove Tr*d/dz(w) in gad_implicit_r.F and add it in gad_calc_rhs.F);
53      - fix implicit vertical diffusion or advection with NonLin FreeSurf
54        (was using current recip_hFacC instead of future recip_hFacC): set future
55        recip_hFac in thermodynamics.F and pass & use it in all vertical implicit
56        solver S/R ;
57      - fill diagnostics of vertical advective fluxes (computed from tendency)
58        when using implicit vert. advection;
59      - update output of exp that uses NonLin-FreeSurf & implicit vertical diffusion:
60         global_ocean.90x40x15 (fwd+AD), global_ocean.cs32x15 (4 fwd +4 AD),
61         tutorial_global_oce_in_p (fwd), tutorial_tracer_adjsens (AD)
62         and cpl_aim+ocn (used in ocean); to be fixed: bottom_ctrl_5x5.
63    o pkg/diagnostics:
64      - add diags for T & S tendency which goes through Adams-Bashforth.
65    
66    checkpoint63f (2011/11/30)
67    o pkg/obcs/obcs_calc_stevens.F:
68      - join some loops to reduce number of if-statements
69      - fix a bug in code for northern and southern boundaries.
70    o pkg/seaice/seaice_init_varia.F
71      - undo resetting UVM=0 that has slipped in unnoticed in r1.49 and
72        caused zero ice-velocities for the B-grid code
73    o pkg/seaice/seaice_init_fixed.F
74      - fix a bug in the initialisation of the second metric terms
75        k2AtC and k2AtZ: k2AtC was set to the value of k2AtZ and k2AtZ was 0.
76      - this affects all seaice configurations with useCurviLinearGrid = .true.
77        and SEAICEuseDynamics = .true. (default) and SEAICEuseMetricTerms
78        = .true. (default)
79      - the only verification experiment affected is global_ocean.cs32x15:
80        icedyn, seaice, and seaice_dynmix (AD)
81    o pkg/thsice/thsice_diagnostics_state.F
82      - only for TARGET_NEC_SX: initialise all of tmpFld, so that overlap does
83        not contain garbage that can lead to surprises in diagstats_calc.F
84    o model/src:
85      - move bi,bj loops inside INTEGR_CONTINUITY ;
86      - call INTEGR_CONTINUITY directly from forward_step.F
87        (previously called from momentum_correction_step.F)
88      - call UPDATE_ETAH from integr_continuity.F and update initialise_varia.F,
89        forward_step.F and pkg/ecco/the_main_loop.F
90    o model/src/do_oceanic_phys.F:
91      - reset addMass to zero only if useICEFRONT ;
92      - separated k-loop for rhoInSitu calculation ;
93      - add 2 diagnostics for wVel*delta^k(Rho) at constant pressure (= WdRHO_P)
94        and at constant T,S (= WdRHOdP);
95      NOTE: change diagnostics WRHOMASS : this is now simply the Vertical transport
96        of In-Situ Density (Anomaly) (=wVel*rho^bar-k) (previously was Vertical
97        transport of locally-referenced potential density);
98        to recover old diag: (WRHOMASS)_old = (WRHOMASS)_new -1/2 * (WdRHOdP)
99    o gluemnc:
100      - replace ncrcat with ncks when adding variables to *.glob.nc
101      - change the way variables without record dimensions are handled so that
102        files that have variables with and without record variables can be glued:
103        add a record dimension with a new unique name to be able to differentiate
104        between variable with and without a-prior record dimensions. Remove
105        this record dimension before adding the variable to the *.glob.nc file.
106        This procedure automatically works also for grid.*.nc files that do not
107        have any record dimension.
108    o verification/cpl_aim+ocn:
109      - generate new reference output on baudelaire (gfortran, mpich2) (previously
110        from old aces-grid cluster, ao + ifort) and update 'run_cpl_test' script.
111    o pkg/obcs/obcs_calc_stevens.F:
112      - add code for northern and southern boundaries.
113      - reorder some loops to save some operations and so that drFBar can be scalar
114    o model/src:
115      - re-arrange extrapolation calculation in Adams-Bashforth S/R (affects machine
116        truncation) and add diagnostics for Adams-Bashforth tendency increment.
117      - update test-exp. AD output:
118        1D_ocean_ice_column, bottom_ctrl_5x5, lab_sea.noseaicedyn, obcs_ctrl;
119      and FWD output: exp4 (x3), fizhi-cs-32x32x40, fizhi-cs-aqualev20,
120        front_relax (x3), global_ocean.90x40x15 (x2), global_ocean.cs32x15 (x5),
121        global_ocean_ebm, ideal_2D_oce, internal_wave, isomip (x3), lab_sea (x4),
122        matrix_example, MLAdjust (x5), natl_box (x2), tutorial_advection_in_gyre,
123        tutorial_global_oce_in_p, tutorial_global_oce_latlon and
124        tutorial_plume_on_slope.
125    o pkg/diagnostics/diagstats_calc.F: add special code for TARGET_NEC_SX
126      that vectorises. This code uses 3 extra 2D fields, F90 array assignments
127      and F90 intrinsic routines SUM, MINVAL, MAXVAL, but since TARGET_NEC_SX
128      does not even come with an F77 compiler anymore, this should not be
129      a limitation
130    
131    checkpoint63e (2011/11/06)
132    o pkg/seaice adjoint of LSR:
133      - substantially rework STORE dirs.
134      - add new flag SEAICE_LSR_ADJOINT_ITER and parameter SOLV_MAX_FIXED
135        this flag will do SOLV_MAX_ITERS but only store SOLV_MAX_FIXED fields
136        and only perform SOLV_MAX_FIXED adjoint iters.
137        If flag SEAICE_LSR_ADJOINT_ITER is undef-ined, the store in the iteration
138        always goes to same record, meaning that the last forward field will be
139        the one used in the adjoint - an approximation.
140      - now produces non-zero LSR-related gradients, and acceptable gradients for
141        An's zonal (x-z) test case (to be checked in)
142      - lab_sea: produces acceptable gradients for lab_sea with forward/backward LSR
143        (but these are screwed up by the thermodynamics in the first place);
144        reduce from 4 to 3 timesteps to avoid t.d. issue as temporary solution;
145        output_adm.txt also reflects changes to seaice_lsr
146      - global_ocean.cs32x15:
147        * the "default" input_ad.seaice has been re-defined to always exclude dynamics
148          (output_adm.seaice.txt was updated)
149        * new input_ad.seaice_dynmix tests a forward LSR / backward free-drift
150          (output_adm.seaice_dynmix.txt)
151    o test-exp. exp4+stevens:
152      - switch off pTracers and nonHydrostatic (restart problems with NH); update output
153    o pkg/seaice (lsr solver):
154      - put coriolis term into FORCEX,Y (as in seaice_evp.F; previously in rhsU,V only);
155        update output (change truncation) of FWD test exp lab_sea & global_ocean.cs32x15
156      - fix SEAICEuseFREEDRIFT for new OBCS version (ndef OBCS_UVICE_OLD)
157      - new parameter "LSR_mixIniGuess" allows (if=2,4) to mix free-drift solution
158        into initial guess for linearised solver; use weight ~ (1/err)^2,4.
159      - compute (with new S/R) and print initial (+ free-driff sol. if available)
160        and final residual of linearised system.
161    o pkg/pp81: add diagnostics for vertical eddy viscosity and diffusivity
162      (requires new subroutines pp81_init_fixed.F/pp81_diagnostics_init.F)
163    o pkg/obcs: Stevens BCs (still only for east and west)
164      - fix Stevens BCs by using intermediate velocities of previous
165        time step as "baroclinic" contribution rather velocity of one grid cell
166        inside the boundaries; more consistent but makes the entire treatment
167        more complicated, requires new pickup files and two new S/Rs:
168        obcs_copy_uv_n and obcs_save_uv_n
169        keep old version with flag OBCS_STEVENS_USE_INTERIOR_VELOCITY
170        (undefined by default)
171      - silently move computation of some grid factors into separate loops to
172        save some recomputations
173      - add a hack for non-linear free surface
174      - add a verification experiment to exp4 that tests this code
175    o make gluemnc/xplodemnc work with (moron) non-GNU shell tools
176    
177    checkpoint63d (2011/10/25)
178    o pkg/obcs + seaice-dynamics:
179      - new implementation calls OBCS_APPLY_UVICE (in seaice_dynsolver.F) before
180        solving for uIce,vIce and prevent SEAICE_LSR or SEAICE_EVP to modify OB
181        values (consistent with an implicit method).
182      - add option OBCS_UVICE_OLD (in OBCS_OPTIONS.h, defined by default) to
183        return to older implementation (same results as before); note that none of
184        the "experimental" OBCS_SEAICE options are implemented in the new version.
185      - switch test exp. seaice_obcs to use new version (update output).
186    o pkg/seaice:
187      - add few stop (B-grid & CS-exch, B-grid & obcs, AUTODIFF & SEAICE_maskRHS)
188      - add parenthesis in Water-Ice drag calculations (evp & lsr);
189      - in seaice_lsr.F, simplify and fix AA3 setting in case sNx or sNy=1;
190        and fix case SEAICE_waterDrag=0 (but unstable if no or little seaice)
191      - update output of test exp lab_sea that uses evp or lsr (fwd+ad)
192        and global_ocean.cs32x15 (icedyn & seaice fwd+ad).
193    o pkg/layers:
194      - Include potential density as new coordinate (Thanks to David Munday)
195    o pkg/dic:
196      - Remove subroutine CALC_PCO2_APPROX_CO3 from carbon_chem.F and add
197        carbonate computation/output to CALC_PCO2_APPROX
198    o pkg/generic_advdiff
199      - make TAF generate code that vectorizes:
200        gad_dst3fl_adv_*.F, gad_u3c4_impl_r.F
201    o model/src:
202      - improve vectorization also for adjoint code of
203        solve_tridiagonal and solve_pentadiagonal. As this requires up to
204        5 new 3D-fields, this code is only turned on for the combination of
205        ALLOW_AUTODIFF_TAMC and TARGET_NEC_SX. Also remove error message
206        for singular matrix check (only for TARGET_NEC_SX).
207      - remove hard-wiring of CPP-flag ALLOW_SOLVERS_KLOOPINSIDE to
208        ALLOW_AUTODIFF. This flag now needs to be set outside of
209        solve_tri/pentadiagonal.F
210    o pkg/exf:
211      - fix previous modif in exf_readparms.F (revision 1.66: treatment of
212        optional namelist EXF_NML_OBCS).
213      - add many debug-print (to trace down where pkg/cal error msg comes from)
214    o pkg/mom_vecinv/mom_vi_hdissip.F
215      - rearrange loops so that vectorization is improved and in particular
216        the adjoint routine vectorizes. The code is a little longer now, but I
217        think easier to read.
218        Note: CPP-flag MOM_VI_ORIGINAL_VISCA4 is not tested.
219    o pkg/seaice:
220      - allow to specify initial seaice velocity from files (uIceFile,vIceFile)
221    o pkg/exch2:
222      - alternative code (without tile x tile matrix) for cumulated (global) sum;
223        used as default; keep using matrix version in adjustment.cs-32x32x1.
224    o tools/build_options:
225      - after merging some MPI and/or multi-threads specific optfiles so that
226        the modified default optfile support both built (using genmake2 -mpi
227        for the MPI built, using genmake2 -omp for OpenMP built),
228        move now obsolete optfiles to tools/build_options/unsupported/
229       (add copy of email sent to support list in doc/optfiles_changes.txt)
230    
231    checkpoint63c (2011/09/28)
232    o pkg/ebm:
233      - fix ebm_zonalmean.F for several procs in Ydir (nPy > 1); update output of
234        test exp. global_ocean_ebm (affects machine truncation, 12 digits for cg2d)
235  o pkg/seaice (SItracer pickup)  o pkg/seaice (SItracer pickup)
236  * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)  * Simple code for pickup of SItracer fields (#define ALLOW_SITRACER)
237    To be done:    To be done:

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