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revision 1.1106 by jmc, Tue May 26 19:21:14 2009 UTC revision 1.1196 by jmc, Thu Nov 19 02:25:33 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/obcs:
8     - fix bug in initialisation (broken since Oct 1rst modification)
9       for useOBCSprescribe without useEXF.
10    
11    checkpoint61y
12    o pkg/seaice
13     - change (once again) the discretization for the evp solver: rather than
14       squaring the averages of strain rates, average the squares to give
15       a better approximation to VP behavior (in simple test); this breaks
16       verification experiments that use EVP (lab_sea and lab_sea.hb87)
17        --> update outputs
18    o add CPP-flag (in mom_calc_visc.F) and TAF directive (in gmredi_slope_limit)
19      to improve vectorization of adjoint code on TARGET_NEC_SX
20    o verification/vermix:
21      - change vermix to a more "classical" 1d column with high vertical
22        resolution, seasonal heat flux forcing and constant wind forcing
23        --> update outputs
24    o pkg/seaice
25     - fix diagnostics of principal stress components for EVP
26     - add optional diagnostics of non-linear convergence for LSOR solver
27     - make maximum zeta a runtime parameter
28    o model/src (3-d solver):
29      Undo modif from Dec 12, 2005 (solve_for_pressure.F cvs version v.49),
30       which consisted in removing the Surf. Non-Hydrostatic pressure from the
31       whole column and adding it to Eta (inspired from Casualli, 1999):
32       Only affects 3-D solver initial guess and only if using ExactConserv,
33       but tests did show a degradation of solver convergence. For this reason,
34       decide to disable this piece of code.
35       to recover previous version, just set zeroPsNH = exactConserv (line 78).
36      Update output of exp. global_ocean.cs32x15.viscA4 & hs94.cs-32x32x5.impIGW
37    o pkg/ggl90:
38     - fix previous modif (unfortunatly has not been documented here).
39    o pkg/seaice/autodiff:
40     - add CPP flag to include clipping of zeta in EVP code;
41       although clipping of zeta is not necessary for EVP and not recommended
42       it was done by default, now clipping is disabled by default
43     - modify computation and store zetaC/Z in seaice_evp for TAF
44     - add CPP-flag SEAICE_ALLOW_CLIPVELS (undefined by default)
45     - change seaice_calc_viscosities/strainrates for better
46       vectorization after AD by TAF
47     - rearrange common blocks in SEAICE.h once again for easier dumps of
48       adjoint output, adjust adcommon.h and g_common.h
49     - change flux form of default advection scheme for better vectorization
50       of adjoint code
51     - modify lab_sea/input.lsr to test the flux form of default advection
52       scheme
53    o autodiff: fix seaice fields in g_common.h (left over from 3 to 1 level
54      transition in checkpoint61r)
55    
56    checkpoint61x
57    o adjoint: adding two new verification experiments
58      * tutorial_global_biogeo: an online dic sensitivity experiment
59        (work with G. Forget)
60      * tutorial_dic_adjoffline: an offline dic sensitivity experiment
61        (an update of the Dutkiewicz et al., 2006 paper)
62      Both use the same CO2FLUX cost function, but different controls
63      Gradient checks look good, but some recomp. could still be traightened out
64      Should add xx_dic control variable to test at some point
65    o model/src:
66      add run-time parameters to check and/or mask initial Temp & Salt
67    o pkg/ptracers:
68      apply zonal filter (if used) to all passive tracers
69    
70    checkpoint61w
71    o adjoint:
72      * update and finish work on adjoint of dic package (G. Forget)
73      * start adjoint of offline package
74      * bug fix for cube-sphere TLM code (active_file_g.F)
75    o tutorial_global_oce_optim:
76      now tested with 4 tiles (change data.grdchk and update output_adm.txt)
77      and add SIZE.h_mpi for MPI testing
78    o pkg autodiff
79     - fix bug in autodiff_restore
80     - make genmake2 remove comments and empty lines from ad_input_code.f in
81       order to reduce file size (new script file remove_comments_sed)
82    o allows to specify vertical profile of vertical viscosity (viscArNr)
83    o pkg autodiff
84      autodiff_ini_model_io: comment out writing of grid information to netcdf
85      files, because at this time the grid fields are a bunch of zeros
86      (this is analogous to ini_mnc_vars.F)
87    o pkg seaice/autodiff:
88     left-over from removing the 3-time-level fields:
89     - small rearrangement of common blocks (SEAICE.h)
90     - fix field declaration in order to get meaningful output in
91       adseaice.*.nc (adcommon.h)
92    o pkg obcs:
93     - go through NH code only if nonHydrostatic=T
94     - fix restart for Orlanski (Hydrostatic; still to fix NH+Orlanski restart)
95     - move call to OBCS_CALC before SEAICE_MODEL which needs seaice-obc fields
96       => Update output of experiment seaice_obcs
97     - useOBCSbalance: code is wrong with multi-tile / proc: add a stop.
98     - fix NH+Orlanski restart (add wvel OBC value in pickup file)
99     - fix restart for useOBCSprescribe + useEXF
100    o pkg ctrl
101     - make obcs as control parameter work also with useSingleCPUio
102     - replace a few sny and snx by Ny and Nx to be consistent with
103       ctrl_set_globfld_x/yz.F
104    o pkg seaice
105     - re-introduce global field frWtrAtm for the case of
106       ALLOW_MEAN_SFLUX_COST_CONTRIBUTION defined (SEAICE.h, seaice_growth.F)
107     - catch the case of an empty filename in seaice_cost_init_fixed.F
108    o pkg ecco:
109     - small bug fixes in the_main_loop
110      . fix order of monitor arguments
111      . change SEAICE_MULTILEVEL to SEAICE_MULTICATEGORY
112      . move include DYNVARS.h up outside the ALLOW_AUTODIFF_TAMC block so
113        that ALLOW_ECCO_FORWARD_RUN works with NONLIN_FRSURF
114     - replace cos(yc*deg2rad) by _rA in cost_mean_heat/saltflux.F, fix the
115       imbalance diagnostics for wmean_h/sflux = 0
116     - add actual values to f_obcsn/s/w/e in ecco_cost_final.F
117     - catch the case of empty filenames in ecco_cost_init_fixed.F
118       and ecco_readparms.F
119     - fix the logic of wsalt=0.and.wsalt2=0 to wsalt=0.or.wsalt2=0 (and theta)
120       to make this statement meaningfull in ecco_cost_weights.F
121    o pkg zonal_filt:
122      - change ZONAL_FILTER S/R interface (allows to filter 2-D fields)
123      - when using rStar, filter uVel*hFacW instead of uVel
124       (tested without topography: fix a Pb of growing instability with NLFS)
125    o pkg/aim/thsice:
126     -Add capacity to read a Q-Flux to be applied in slab-mixed layer thsice_slab_ocean.F
127      (works as SST restoring)
128    o pkg/thsice:
129     -add specific parameter for salt restoring in slab mixed-layer
130       (by default equal to the temperature restoring)
131    
132    checkpoint61v
133    o pkg/kpp:
134     -add double diffusive contributions as a hack, turned off by default
135      for now, and the code can be excluded with a CPP-flag
136      EXCLUDE_KPP_DOUBLEDIFF just as EXCLUDE_KPP_SHEAR_MIX
137     -add a verification experiments to "vermix" to test this code
138    o pkg/mom_common:
139      Move computation of length scales to mom_init_fixed.F (avoid recomputation
140      at each time-steps*levels).
141    o pkg/layers:
142      Created a new package for computing volume fluxes in temperature or
143      [not yet implemented] density layers, e.g. for calculating residual
144      overturning circulations.
145    o pkg/diagnostics:
146      implement a RS type version for the set of DIAGNOSTICS-FILL subroutines
147    o fix few RS/RL type mismatch (check with ifort 11.1 "-warn all" option)
148    o pkg/mdsio (& pkg/rw): rework high level S/R interface:
149      To avoid mixing type (RS/RL) of input/output array argument,
150      replace single mixed-type array with a pair from each type (RS/RL).
151    o setting pickupSuff force to start from a pickup (even if nIter0=0): this
152      is now implemented for all pkgs (previously only done for the main pickup)
153    
154    checkpoint61u
155    o pkg/obcs:
156      - change OB?eta from _RS to _RL and put them into a separate commen block
157      - add code to read OB?eta from a file via obcs_prescribe_read: the code
158        compiles and does not destroy any other experiments, the data is read
159        properly, but the code is not tested in actual applications
160    o ini_mnc_vars.F: if available (ALLOW_CAL), use startTime_1 and 2 to
161      create a meaningful unit attribute for the time coordinate variable
162    o pkg/ebm: add plenty of missing "_d 0" ;
163       update results of experiment global_ocean_ebm (fwd + adjoint tests)
164      Notes: several pieces of code only works for (very) specific set up
165       (domain size, lat range, etc ...); should be documented & stop if one
166       of those assumptions is not meet.
167    o pkg/seaice: add missing "_d 0" in HSNOW initialisation
168       update results of experiments: lab_sea (3 fwd tests + 2 adjoint tests)
169          and offline_exf_seaice (seaicetd + adjoint).
170    o add missing "_d 0" in ShortWave flux penetration (S/R SWFRAC):
171       update results of experiments: lab_sea (4 fwd tests + 3 adjoint),
172        seaice_obcs, global_ocean.cs32x15 (icedyn & thsice) and natl_box (x2).
173    o few changes to pass when compiling with strick checking of arguments
174       across S/R (allow to find few bugs in S/R calls).
175    o pkg/seaice:
176     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
177       2d-fields, for slightly better performance
178    
179    checkpoint61t
180    o pkg/seaice:
181     - remove unused variables in seaice_evp
182     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
183    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
184       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
185       each processor opens a different file (a fix from Matt).
186    o cg2d:
187       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
188       this reduces number of EXCH calls by 2 when using exch2.
189       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
190       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
191    o pkg/thsice:
192       add code for Near Infra-Red albedo (from Jeff)
193       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
194    o ini_model_io:
195       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
196       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
197       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
198    
199    checkpoint61s
200    o pkg/exch2 (exch2_rxN_cube*):
201       remove last BARRIER (no need to synchronise after getting data from shared
202       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
203    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
204      and generate new output (for the 2 tests) using default rotationPeriod.
205    o pkg/exch2:
206      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
207        (was already the case with AUTODIFF_EXCH2 defined)
208      - add bj in exch2 arrays and S/R.
209      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
210        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
211    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
212      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
213        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
214      - verification experiment natl_box.longstep
215    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
216      allow different versions of ifort (8 or 9) and different versions
217       of mpi (mpich or mpich2) to be used with the same optfile.
218      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
219       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
220    o pkg/seaice:
221      fix previous modif (3-level field removed) for old-pickup reading
222    
223    checkpoint61r
224    o pkg/seaice:
225     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
226      1. introduce fields for time step (N-1)
227      2. do not use levels 2 and 3 anymore (but keep them)
228      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
229         includes changes to pkg/thsice/thsice_get_velocity.F,
230         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
231         pkg/obcs/obcs_apply_uvice.F.
232     - completely remove code for leap-frog time stepping for second order
233       advection
234     - adjusted adjoint accordingly;
235       gradient checks have improved by an order of magnitude!
236    
237    checkpoint61q
238    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
239     - the boundary conditions along open boundaries are unclear, because the
240       associated masks are set to zero and are thus treated as closed when
241       applying the slip-boundary conditions.
242     - move initialisation of grid variables from seaice_init_varia to _fixed
243    o adding doc/diags_changes.txt
244    o model/src:
245      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
246       to avoid "_diags" naming if no relation to pkg/diagnostics.
247      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
248       file and only call PLOT_FIELD_XYZ if debugMode=T.
249      remove few PLOT_FIELD_XY calls outside initialisation.
250      remove few unnecessary BARRIER.
251    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
252      of salt_plume package in Southern Ocean
253    o pkg/thsice:
254     - fix hOceMxL in overlap (needed for sea-ice advection);
255       update output of experiment global_ocean.cs32x15.icedyn.
256    o pkg/seaice:
257     - make the (placeholder-)tracer IceAge a little more meaningful
258      by avoiding ridging of age due to convergent ice flow
259     - add diagnostics for surface temperature, atmospheric and oceanic
260       heat flux, and atmospheric and oceanic ice growth
261    
262    checkpoint61p
263    o eesupp (global_max & global_sum):
264     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
265     - remove starting & endding barrier (no longer needed)
266    o pkg/mdsio, writelocal:
267       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
268       (remove the STOP): uses shared buffer IO to store data from all threads
269       and then let master-thread write nThreads tiles.
270    o pkg/mdsio (read/write field):
271     - tiled IO done in 1 piece (all levels at a time);
272     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
273     - multi-threaded: allow to read/write local (non-shared) array
274       (was already working with singleCpuIO ; now works also without);
275       => no longer needs barrier call after reading a file (added inside
276       mds_read/write field).
277     - move barrier calls outside gather/scatter_2d to mds_read/write_field
278    o pkg/obcs/exf
279      - exf_getffieldrec.F: add a few ". _d 0" and
280                            add code to catch the case fldperiod = 0.  
281      - obcs_precribe_read.F: change if statements so that they match
282                              the variable type (_RL)
283      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
284        exf_iprec) as part of namelist EXF_NML_01
285    o pkg/mdsio:
286      - read/write tiled (local) files: read/write 1-level tile chunk at a time
287        (instead of segment of length sNx); expected to speed up tiled IO.
288    o pkg/exch2:
289      - take buffer copy from/to array out of S/R exch2_send/recv into new
290        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
291        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
292      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
293      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
294        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
295        including Topology header file (and common blocks).
296      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
297        remove 2nd exch call in exch2_s3d_rx (no longer needed).
298      - document S/R arg. list (+ update some comments)
299    o pkg/seaice:
300      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
301        temperature and humidity over sea ice based on climatological values.
302      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
303        of LSR (this change is expected to change the results slightly because now
304        it uses slightly difference moduli from the second last LSR solution, but
305        that is more consistent with the stress computations; this part of the code
306        is not tested in the verification experiments)
307      - fix diagnostics for flux of ice in case of B-grid
308      - turn strain rates eij and press into global fields within global
309        common block in SEAICE.h for more straighforward diagnostics
310      - fix diagnostics for principal stress components, press, zeta, eta
311        to give something meaning full
312    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
313      new output (all 4 tests) using default rotationPeriod.
314    o pkg KPP:
315      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
316      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
317        and normal grid from 1 to Nr)
318    o Fix computations of L4rdt in mom_calc_visc.F
319    o eesupp:
320      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
321      should be called before a "stop" if we know that all process are going
322      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
323    
324  checkpoint61o  checkpoint61o
325  o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)  o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
326  o model/src/ini_curvilinear_grid.F:  o model/src/ini_curvilinear_grid.F:

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