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revision 1.1103 by jmc, Mon May 25 03:30:10 2009 UTC revision 1.1194 by mlosch, Fri Nov 13 09:05:35 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 pkg/seaice
8     - change (once again) the discretization for the evp solver: rather than
9       squaring the averages of strain rates, average the squares to give
10       a better approximation to VP behavior (in simple test); this breaks
11       verification experiments that use EVP (lab_sea and lab_sea.hb87)
12        --> update outputs
13    o add CPP-flag (in mom_calc_visc.F) and TAF directive (in gmredi_slope_limit)
14      to improve vectorization of adjoint code on TARGET_NEC_SX
15    o verification/vermix:
16      - change vermix to a more "classical" 1d column with high vertical
17        resolution, seasonal heat flux forcing and constant wind forcing
18        --> update outputs
19    o pkg/seaice
20     - fix diagnostics of principal stress components for EVP
21     - add optional diagnostics of non-linear convergence for LSOR solver
22     - make maximum zeta a runtime parameter
23    o model/src (3-d solver):
24      Undo modif from Dec 12, 2005 (solve_for_pressure.F cvs version v.49),
25       which consisted in removing the Surf. Non-Hydrostatic pressure from the
26       whole column and adding it to Eta (inspired from Casualli, 1999):
27       Only affects 3-D solver initial guess and only if using ExactConserv,
28       but tests did show a degradation of solver convergence. For this reason,
29       decide to disable this piece of code.
30       to recover previous version, just set zeroPsNH = exactConserv (line 78).
31      Update output of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW
32    o pkg/ggl90:
33     - fix previous modif (unfortunatly has not been documented here).
34    o pkg/seaice/autodiff:
35     - add CPP flag to include clipping of zeta in EVP code;
36       although clipping of zeta is not necessary for EVP and not recommended
37       it was done by default, now clipping is disabled by default
38     - modify computation and store zetaC/Z in seaice_evp for TAF
39     - add CPP-flag SEAICE_ALLOW_CLIPVELS (undefined by default)
40     - change seaice_calc_viscosities/strainrates for better
41       vectorization after AD by TAF
42     - rearrange common blocks in SEAICE.h once again for easier dumps of
43       adjoint output, adjust adcommon.h and g_common.h
44     - change flux form of default advection scheme for better vectorization
45       of adjoint code
46     - modify lab_sea/input.lsr to test the flux form of default advection
47       scheme
48    o autodiff: fix seaice fields in g_common.h (left over from 3 to 1 level
49      transition in checkpoint61r)
50    
51    checkpoint61x
52    o adjoint: adding two new verification experiments
53      * tutorial_global_biogeo: an online dic sensitivity experiment
54        (work with G. Forget)
55      * tutorial_dic_adjoffline: an offline dic sensitivity experiment
56        (an update of the Dutkiewicz et al., 2006 paper)
57      Both use the same CO2FLUX cost function, but different controls
58      Gradient checks look good, but some recomp. could still be traightened out
59      Should add xx_dic control variable to test at some point
60    o model/src:
61      add run-time parameters to check and/or mask initial Temp & Salt
62    o pkg/ptracers:
63      apply zonal filter (if used) to all passive tracers
64    
65    checkpoint61w
66    o adjoint:
67      * update and finish work on adjoint of dic package (G. Forget)
68      * start adjoint of offline package
69      * bug fix for cube-sphere TLM code (active_file_g.F)
70    o tutorial_global_oce_optim:
71      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
72      and add SIZE.h_mpi for MPI testing
73    o pkg autodiff
74     - fix bug in autodiff_restore
75     - make genmake2 remove comments and empty lines from ad_input_code.f in
76       order to reduce file size (new script file remove_comments_sed)
77    o allows to specify vertical profile of vertical viscosity (viscArNr)
78    o pkg autodiff
79      autodiff_ini_model_io: comment out writing of grid information to netcdf
80      files, because at this time the grid fields are a bunch of zeros
81      (this is analogous to ini_mnc_vars.F)
82    o pkg seaice/autodiff:
83     left-over from removing the 3-time-level fields:
84     - small rearrangement of common blocks (SEAICE.h)
85     - fix field declaration in order to get meaningful output in
86       adseaice.*.nc (adcommon.h)
87    o pkg obcs:
88     - go through NH code only if nonHydrostatic=T
89     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
90     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
91       => Update output of experiment seaice_obcs
92     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
93     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
94     - fix restart for useOBCSprescribe + useEXF
95    o pkg ctrl
96     - make obcs as control parameter work also with useSingleCPUio
97     - replace a few sny and snx by Ny and Nx to be consistent with
98       ctrl_set_globfld_x/yz.F
99    o pkg seaice
100     - re-introduce global field frWtrAtm for the case of
101       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
102     - catch the case of an empty filename in seaice_cost_init_fixed.F
103    o pkg ecco:
104     - small bug fixes in the_main_loop
105      . fix order of monitor arguments
106      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
107      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
108        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
109     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
110       imbalance diagnostics for wmean_h/sflux = 0
111     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
112     - catch the case of empty filenames in ecco_cost_init_fixed.F
113       and ecco_readparms.F
114     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
115       to make this statement meaningfull in ecco_cost_weights.F
116    o pkg zonal_filt:
117      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
118      - when using rStar, filter uVel*hFacW instead of uVel
119       (tested without topography: fix a Pb of growing instability with NLFS)
120    o pkg/aim/thsice:
121     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
122      (works as SST restoring)
123    o pkg/thsice:
124     -add specific parameter for salt restoring in slab mixed-layer
125       (by default equal to the temperature restoring)
126    
127    checkpoint61v
128    o pkg/kpp:
129     -add double diffusive contributions as a hack, turned off by default
130      for now, and the code can be excluded with a CPP-flag
131      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
132     -add a verification experiments to "vermix" to test this code
133    o pkg/mom_common:
134      Move computation of length scales to mom_init_fixed.F (avoid recomputation
135      at each time-steps*levels).
136    o pkg/layers:
137      Created a new package for computing volume fluxes in temperature or
138      [not yet implemented] density layers, e.g. for calculating residual
139      overturning circulations.
140    o pkg/diagnostics:
141      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
142    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
143    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
144      To avoid mixing type (RS/RL) of input/output array argument,
145      replace single mixed-type array with a pair from each type (RS/RL).
146    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
147      is now implemented for all pkgs (previously only done for the main pickup)
148    
149    checkpoint61u
150    o pkg/obcs:
151      - change OB?eta from _RS to _RL and put them into a separate commen block
152      - add code to read OB?eta from a file via obcs_prescribe_read: the code
153        compiles and does not destroy any other experiments, the data is read
154        properly, but the code is not tested in actual applications
155    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
156      create a meaningful unit attribute for the time coordinate variable
157    o pkg/ebm: add plenty of missing "_d 0" ;
158       update results of experiment global_ocean_ebm (fwd + adjoint tests)
159      Notes: several pieces of code only works for (very) specific set up
160       (domain size, lat range, etc ...); should be documented & stop if one
161       of those assumptions is not meet.
162    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
163       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
164          and offline_exf_seaice (seaicetd + adjoint).
165    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
166       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
167        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
168    o few changes to pass when compiling with strick checking of arguments
169       across S/R (allow to find few bugs in S/R calls).
170    o pkg/seaice:
171     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
172       2d-fields, for slightly better performance
173    
174    checkpoint61t
175    o pkg/seaice:
176     - remove unused variables in seaice_evp
177     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
178    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
179       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
180       each processor opens a different file (a fix from Matt).
181    o cg2d:
182       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
183       this reduces number of EXCH calls by 2 when using exch2.
184       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
185       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
186    o pkg/thsice:
187       add code for Near Infra-Red albedo (from Jeff)
188       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
189    o ini_model_io:
190       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
191       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
192       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
193    
194    checkpoint61s
195    o pkg/exch2 (exch2_rxN_cube*):
196       remove last BARRIER (no need to synchronise after getting data from shared
197       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
198    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
199      and generate new output (for the 2 tests) using default rotationPeriod.
200    o pkg/exch2:
201      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
202        (was already the case with AUTODIFF_EXCH2 defined)
203      - add bj in exch2 arrays and S/R.
204      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
205        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
206    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
207      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
208        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
209      - verification experiment natl_box.longstep
210    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
211      allow different versions of ifort (8 or 9) and different versions
212       of mpi (mpich or mpich2) to be used with the same optfile.
213      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
214       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
215    o pkg/seaice:
216      fix previous modif (3-level field removed) for old-pickup reading
217    
218    checkpoint61r
219    o pkg/seaice:
220     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
221      1. introduce fields for time step (N-1)
222      2. do not use levels 2 and 3 anymore (but keep them)
223      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
224         includes changes to pkg/thsice/thsice_get_velocity.F,
225         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
226         pkg/obcs/obcs_apply_uvice.F.
227     - completely remove code for leap-frog time stepping for second order
228       advection
229     - adjusted adjoint accordingly;
230       gradient checks have improved by an order of magnitude!
231    
232    checkpoint61q
233    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
234     - the boundary conditions along open boundaries are unclear, because the
235       associated masks are set to zero and are thus treated as closed when
236       applying the slip-boundary conditions.
237     - move initialisation of grid variables from seaice_init_varia to _fixed
238    o adding doc/diags_changes.txt
239    o model/src:
240      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
241       to avoid "_diags" naming if no relation to pkg/diagnostics.
242      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
243       file and only call PLOT_FIELD_XYZ if debugMode=T.
244      remove few PLOT_FIELD_XY calls outside initialisation.
245      remove few unnecessary BARRIER.
246    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
247      of salt_plume package in Southern Ocean
248    o pkg/thsice:
249     - fix hOceMxL in overlap (needed for sea-ice advection);
250       update output of experiment global_ocean.cs32x15.icedyn.
251    o pkg/seaice:
252     - make the (placeholder-)tracer IceAge a little more meaningful
253      by avoiding ridging of age due to convergent ice flow
254     - add diagnostics for surface temperature, atmospheric and oceanic
255       heat flux, and atmospheric and oceanic ice growth
256    
257    checkpoint61p
258    o eesupp (global_max & global_sum):
259     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
260     - remove starting & endding barrier (no longer needed)
261    o pkg/mdsio, writelocal:
262       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
263       (remove the STOP): uses shared buffer IO to store data from all threads
264       and then let master-thread write nThreads tiles.
265    o pkg/mdsio (read/write field):
266     - tiled IO done in 1 piece (all levels at a time);
267     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
268     - multi-threaded: allow to read/write local (non-shared) array
269       (was already working with singleCpuIO ; now works also without);
270       => no longer needs barrier call after reading a file (added inside
271       mds_read/write field).
272     - move barrier calls outside gather/scatter_2d to mds_read/write_field
273    o pkg/obcs/exf
274      - exf_getffieldrec.F: add a few ". _d 0" and
275                            add code to catch the case fldperiod = 0.  
276      - obcs_precribe_read.F: change if statements so that they match
277                              the variable type (_RL)
278      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
279        exf_iprec) as part of namelist EXF_NML_01
280    o pkg/mdsio:
281      - read/write tiled (local) files: read/write 1-level tile chunk at a time
282        (instead of segment of length sNx); expected to speed up tiled IO.
283    o pkg/exch2:
284      - take buffer copy from/to array out of S/R exch2_send/recv into new
285        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
286        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
287      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
288      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
289        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
290        including Topology header file (and common blocks).
291      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
292        remove 2nd exch call in exch2_s3d_rx (no longer needed).
293      - document S/R arg. list (+ update some comments)
294    o pkg/seaice:
295      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
296        temperature and humidity over sea ice based on climatological values.
297      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
298        of LSR (this change is expected to change the results slightly because now
299        it uses slightly difference moduli from the second last LSR solution, but
300        that is more consistent with the stress computations; this part of the code
301        is not tested in the verification experiments)
302      - fix diagnostics for flux of ice in case of B-grid
303      - turn strain rates eij and press into global fields within global
304        common block in SEAICE.h for more straighforward diagnostics
305      - fix diagnostics for principal stress components, press, zeta, eta
306        to give something meaning full
307    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
308      new output (all 4 tests) using default rotationPeriod.
309    o pkg KPP:
310      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
311      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
312        and normal grid from 1 to Nr)
313    o Fix computations of L4rdt in mom_calc_visc.F
314    o eesupp:
315      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
316      should be called before a "stop" if we know that all process are going
317      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
318    
319    checkpoint61o
320    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
321    o model/src/ini_curvilinear_grid.F:
322       compute angleSin/CosC when they are not read from a file
323    o pkg/seaice:
324       add pseudo time stepping for LSOR
325  o pkg/exch2:  o pkg/exch2:
326     temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW     temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
327  o pkg/seaice:  o pkg/seaice:
328     Adding separate sea ice albedo and drag coefficients in Southern Ocean     Adding separate sea ice albedo, drag coefficients, and HO in Southern
329     from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h     Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
330  o SingleCpuIO:  o SingleCpuIO:
331     fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.     fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
332  o pkg/seaice:  o pkg/seaice:

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