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revision 1.1124 by jmc, Thu Jun 11 19:56:50 2009 UTC revision 1.1198 by mlosch, Mon Nov 23 16:41:30 2009 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: add Christopher Wolfe's implemetation of the single reduction cg2d
8     (d'Azevedo, Eijkhout, and Romine, 1999) with CPP-flag ALLOW_SRCG and
9     runtime flag useSRCGSolver. Modify verification experiment global_with_exf
10     to test this code
11    o pkg/cd_code:
12      Change defaut D-grid time-stepping to get the same for D-grid momentum as for
13       C-grid momentum. D-grid velocity used to be stepped forward in time with
14       Adams-Bashforth only on surface pressure term. Tests show that using AB on
15       D-grid coriolis term improves stability (as expected from CD-scheme paper).
16      To reproduce old results, add 2 options (in CD_CODE_OPTIONS.h).
17      Update results of exp: global_with_exf (x2), ideal_2D_oce, isomip (x2),
18       lab_sea (3 Fwd +3 AD), natl_box (x2), tutorial_global_oce_biogeo (Fwd+AD),
19       tutorial_global_oce_latlon, tutorial_global_oce_optim & tutorial_tracer_adjsens.
20      Keep old results by adding CD_CODE_OPTIONS.h in exp: cfc_example, exp2,
21           lobal_ocean.90x40x15(+AD), global_ocean_ebm(+AD) and OpenAD.
22    o pkg/obcs:
23     - fix bug in initialisation (broken since Oct 1rst modification)
24       for useOBCSprescribe without useEXF.
25    
26    checkpoint61y
27    o pkg/seaice
28     - change (once again) the discretization for the evp solver: rather than
29       squaring the averages of strain rates, average the squares to give
30       a better approximation to VP behavior (in simple test); this breaks
31       verification experiments that use EVP (lab_sea and lab_sea.hb87)
32        --> update outputs
33    o add CPP-flag (in mom_calc_visc.F) and TAF directive (in gmredi_slope_limit)
34      to improve vectorization of adjoint code on TARGET_NEC_SX
35    o verification/vermix:
36      - change vermix to a more "classical" 1d column with high vertical
37        resolution, seasonal heat flux forcing and constant wind forcing
38        --> update outputs
39    o pkg/seaice
40     - fix diagnostics of principal stress components for EVP
41     - add optional diagnostics of non-linear convergence for LSOR solver
42     - make maximum zeta a runtime parameter
43    o model/src (3-d solver):
44      Undo modif from Dec 12, 2005 (solve_for_pressure.F cvs version v.49),
45       which consisted in removing the Surf. Non-Hydrostatic pressure from the
46       whole column and adding it to Eta (inspired from Casualli, 1999):
47       Only affects 3-D solver initial guess and only if using ExactConserv,
48       but tests did show a degradation of solver convergence. For this reason,
49       decide to disable this piece of code.
50       to recover previous version, just set zeroPsNH = exactConserv (line 78).
51      Update output of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW
52    o pkg/ggl90:
53     - fix previous modif (unfortunatly has not been documented here).
54    o pkg/seaice/autodiff:
55     - add CPP flag to include clipping of zeta in EVP code;
56       although clipping of zeta is not necessary for EVP and not recommended
57       it was done by default, now clipping is disabled by default
58     - modify computation and store zetaC/Z in seaice_evp for TAF
59     - add CPP-flag SEAICE_ALLOW_CLIPVELS (undefined by default)
60     - change seaice_calc_viscosities/strainrates for better
61       vectorization after AD by TAF
62     - rearrange common blocks in SEAICE.h once again for easier dumps of
63       adjoint output, adjust adcommon.h and g_common.h
64     - change flux form of default advection scheme for better vectorization
65       of adjoint code
66     - modify lab_sea/input.lsr to test the flux form of default advection
67       scheme
68    o autodiff: fix seaice fields in g_common.h (left over from 3 to 1 level
69      transition in checkpoint61r)
70    
71    checkpoint61x
72    o adjoint: adding two new verification experiments
73      * tutorial_global_biogeo: an online dic sensitivity experiment
74        (work with G. Forget)
75      * tutorial_dic_adjoffline: an offline dic sensitivity experiment
76        (an update of the Dutkiewicz et al., 2006 paper)
77      Both use the same CO2FLUX cost function, but different controls
78      Gradient checks look good, but some recomp. could still be traightened out
79      Should add xx_dic control variable to test at some point
80    o model/src:
81      add run-time parameters to check and/or mask initial Temp & Salt
82    o pkg/ptracers:
83      apply zonal filter (if used) to all passive tracers
84    
85    checkpoint61w
86    o adjoint:
87      * update and finish work on adjoint of dic package (G. Forget)
88      * start adjoint of offline package
89      * bug fix for cube-sphere TLM code (active_file_g.F)
90    o tutorial_global_oce_optim:
91      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
92      and add SIZE.h_mpi for MPI testing
93    o pkg autodiff
94     - fix bug in autodiff_restore
95     - make genmake2 remove comments and empty lines from ad_input_code.f in
96       order to reduce file size (new script file remove_comments_sed)
97    o allows to specify vertical profile of vertical viscosity (viscArNr)
98    o pkg autodiff
99      autodiff_ini_model_io: comment out writing of grid information to netcdf
100      files, because at this time the grid fields are a bunch of zeros
101      (this is analogous to ini_mnc_vars.F)
102    o pkg seaice/autodiff:
103     left-over from removing the 3-time-level fields:
104     - small rearrangement of common blocks (SEAICE.h)
105     - fix field declaration in order to get meaningful output in
106       adseaice.*.nc (adcommon.h)
107    o pkg obcs:
108     - go through NH code only if nonHydrostatic=T
109     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
110     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
111       => Update output of experiment seaice_obcs
112     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
113     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
114     - fix restart for useOBCSprescribe + useEXF
115    o pkg ctrl
116     - make obcs as control parameter work also with useSingleCPUio
117     - replace a few sny and snx by Ny and Nx to be consistent with
118       ctrl_set_globfld_x/yz.F
119    o pkg seaice
120     - re-introduce global field frWtrAtm for the case of
121       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
122     - catch the case of an empty filename in seaice_cost_init_fixed.F
123    o pkg ecco:
124     - small bug fixes in the_main_loop
125      . fix order of monitor arguments
126      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
127      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
128        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
129     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
130       imbalance diagnostics for wmean_h/sflux = 0
131     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
132     - catch the case of empty filenames in ecco_cost_init_fixed.F
133       and ecco_readparms.F
134     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
135       to make this statement meaningfull in ecco_cost_weights.F
136    o pkg zonal_filt:
137      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
138      - when using rStar, filter uVel*hFacW instead of uVel
139       (tested without topography: fix a Pb of growing instability with NLFS)
140    o pkg/aim/thsice:
141     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
142      (works as SST restoring)
143    o pkg/thsice:
144     -add specific parameter for salt restoring in slab mixed-layer
145       (by default equal to the temperature restoring)
146    
147    checkpoint61v
148    o pkg/kpp:
149     -add double diffusive contributions as a hack, turned off by default
150      for now, and the code can be excluded with a CPP-flag
151      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
152     -add a verification experiments to "vermix" to test this code
153    o pkg/mom_common:
154      Move computation of length scales to mom_init_fixed.F (avoid recomputation
155      at each time-steps*levels).
156    o pkg/layers:
157      Created a new package for computing volume fluxes in temperature or
158      [not yet implemented] density layers, e.g. for calculating residual
159      overturning circulations.
160    o pkg/diagnostics:
161      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
162    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
163    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
164      To avoid mixing type (RS/RL) of input/output array argument,
165      replace single mixed-type array with a pair from each type (RS/RL).
166    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
167      is now implemented for all pkgs (previously only done for the main pickup)
168    
169    checkpoint61u
170    o pkg/obcs:
171      - change OB?eta from _RS to _RL and put them into a separate commen block
172      - add code to read OB?eta from a file via obcs_prescribe_read: the code
173        compiles and does not destroy any other experiments, the data is read
174        properly, but the code is not tested in actual applications
175    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
176      create a meaningful unit attribute for the time coordinate variable
177    o pkg/ebm: add plenty of missing "_d 0" ;
178       update results of experiment global_ocean_ebm (fwd + adjoint tests)
179      Notes: several pieces of code only works for (very) specific set up
180       (domain size, lat range, etc ...); should be documented & stop if one
181       of those assumptions is not meet.
182    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
183       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
184          and offline_exf_seaice (seaicetd + adjoint).
185    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
186       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
187        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
188    o few changes to pass when compiling with strick checking of arguments
189       across S/R (allow to find few bugs in S/R calls).
190    o pkg/seaice:
191     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
192       2d-fields, for slightly better performance
193    
194    checkpoint61t
195    o pkg/seaice:
196     - remove unused variables in seaice_evp
197     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
198    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
199       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
200       each processor opens a different file (a fix from Matt).
201    o cg2d:
202       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
203       this reduces number of EXCH calls by 2 when using exch2.
204       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
205       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
206    o pkg/thsice:
207       add code for Near Infra-Red albedo (from Jeff)
208       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
209    o ini_model_io:
210       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
211       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
212       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
213    
214    checkpoint61s
215    o pkg/exch2 (exch2_rxN_cube*):
216       remove last BARRIER (no need to synchronise after getting data from shared
217       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
218    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
219      and generate new output (for the 2 tests) using default rotationPeriod.
220    o pkg/exch2:
221      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
222        (was already the case with AUTODIFF_EXCH2 defined)
223      - add bj in exch2 arrays and S/R.
224      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
225        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
226    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
227      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
228        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
229      - verification experiment natl_box.longstep
230    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
231      allow different versions of ifort (8 or 9) and different versions
232       of mpi (mpich or mpich2) to be used with the same optfile.
233      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
234       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
235    o pkg/seaice:
236      fix previous modif (3-level field removed) for old-pickup reading
237    
238    checkpoint61r
239    o pkg/seaice:
240     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
241      1. introduce fields for time step (N-1)
242      2. do not use levels 2 and 3 anymore (but keep them)
243      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
244         includes changes to pkg/thsice/thsice_get_velocity.F,
245         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
246         pkg/obcs/obcs_apply_uvice.F.
247     - completely remove code for leap-frog time stepping for second order
248       advection
249     - adjusted adjoint accordingly;
250       gradient checks have improved by an order of magnitude!
251    
252    checkpoint61q
253    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
254     - the boundary conditions along open boundaries are unclear, because the
255       associated masks are set to zero and are thus treated as closed when
256       applying the slip-boundary conditions.
257     - move initialisation of grid variables from seaice_init_varia to _fixed
258    o adding doc/diags_changes.txt
259    o model/src:
260      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
261       to avoid "_diags" naming if no relation to pkg/diagnostics.
262      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
263       file and only call PLOT_FIELD_XYZ if debugMode=T.
264      remove few PLOT_FIELD_XY calls outside initialisation.
265      remove few unnecessary BARRIER.
266    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
267      of salt_plume package in Southern Ocean
268  o pkg/thsice:  o pkg/thsice:
269   - fix hOceMxL in overlap (needed for sea-ice advection);   - fix hOceMxL in overlap (needed for sea-ice advection);
270     update output of experiment global_ocean.cs32x15.icedyn.     update output of experiment global_ocean.cs32x15.icedyn.
271  o pkg/seaice:  o pkg/seaice:
272   - make the (placeholder-)tracer IceAge a little more meaningful   - make the (placeholder-)tracer IceAge a little more meaningful
273    by avoiding ridging of age due to convergent ice flow    by avoiding ridging of age due to convergent ice flow
274   - add diagnostics for surface temperature   - add diagnostics for surface temperature, atmospheric and oceanic
275       heat flux, and atmospheric and oceanic ice growth
276    
277  checkpoint61p  checkpoint61p
278  o eesupp (global_max & global_sum):  o eesupp (global_max & global_sum):

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