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revision 1.1072 by jmc, Fri Feb 27 03:22:34 2009 UTC revision 1.1145 by mlosch, Thu Jul 30 07:38:54 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     - seaice_evp: move if-statement out of loop (TEM) at the cost of 11 new
9       2d-fields, for slightly better performance
10    checkpoint61t
11    o pkg/seaice:
12     - remove unused variables in seaice_evp
13     - reduce number of SQRT in seaice_evp and seaice_calc_viscosities
14    o eeset_parms.F, open_copy_data_file.F & ini_parms.F:
15       named file replacing SCRATCH files (for TARGET_BGL & TARGET_CRAYXT):
16       each processor opens a different file (a fix from Matt).
17    o cg2d:
18       use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F :
19       this reduces number of EXCH calls by 2 when using exch2.
20       For now, keep previous size array for gc2d_nsa.F to avoid Pb with store
21       directives and missing simple EXCH (exch_s3d_rx) adjoint code.
22    o pkg/thsice:
23       add code for Near Infra-Red albedo (from Jeff)
24       (turned on with run-time flag: thSIce_calc_albNIR, in data.ice).
25    o ini_model_io:
26       move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F
27       MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F
28       to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice.
29    
30    checkpoint61s
31    o pkg/exch2 (exch2_rxN_cube*):
32       remove last BARRIER (no need to synchronise after getting data from shared
33       buffer (get) as long as any change to buffer (put,recv) is between BARRIER)
34    o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH
35      and generate new output (for the 2 tests) using default rotationPeriod.
36    o pkg/exch2:
37      - always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F
38        (was already the case with AUTODIFF_EXCH2 defined)
39      - add bj in exch2 arrays and S/R.
40      - can now use pkg/exch2 for regular (non CS) set-up; switch test experiment
41        MLAdjust to exch2 (identical results except with MPI -> truncation diff);
42    o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep
43      - adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY
44        GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT
45      - verification experiment natl_box.longstep
46    o build_options: ifort+mpi_aces optfile (following Constantinos advise):
47      allow different versions of ifort (8 or 9) and different versions
48       of mpi (mpich or mpich2) to be used with the same optfile.
49      requires to load a netcdf module and set MPI_INC_DIR (see comments inside
50       optfile). Change testing scripts (example_scripts/ACESgrid) accordingly.
51    o pkg/seaice:
52      fix previous modif (3-level field removed) for old-pickup reading
53    
54    checkpoint61r
55    o pkg/seaice:
56     - clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps:
57      1. introduce fields for time step (N-1)
58      2. do not use levels 2 and 3 anymore (but keep them)
59      3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This
60         includes changes to pkg/thsice/thsice_get_velocity.F,
61         model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and
62         pkg/obcs/obcs_apply_uvice.F.
63     - completely remove code for leap-frog time stepping for second order
64       advection
65     - adjusted adjoint accordingly;
66       gradient checks have improved by an order of magnitude!
67    
68    checkpoint61q
69    o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver
70     - the boundary conditions along open boundaries are unclear, because the
71       associated masks are set to zero and are thus treated as closed when
72       applying the slip-boundary conditions.
73     - move initialisation of grid variables from seaice_init_varia to _fixed
74    o adding doc/diags_changes.txt
75    o model/src:
76      do_the_model_io: rename few pkg S/R which are called from do_the_model_io,
77       to avoid "_diags" naming if no relation to pkg/diagnostics.
78      ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF
79       file and only call PLOT_FIELD_XYZ if debugMode=T.
80      remove few PLOT_FIELD_XY calls outside initialisation.
81      remove few unnecessary BARRIER.
82    o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling
83      of salt_plume package in Southern Ocean
84    o pkg/thsice:
85     - fix hOceMxL in overlap (needed for sea-ice advection);
86       update output of experiment global_ocean.cs32x15.icedyn.
87    o pkg/seaice:
88     - make the (placeholder-)tracer IceAge a little more meaningful
89      by avoiding ridging of age due to convergent ice flow
90     - add diagnostics for surface temperature, atmospheric and oceanic
91       heat flux, and atmospheric and oceanic ice growth
92    
93    checkpoint61p
94    o eesupp (global_max & global_sum):
95     - add one more element to buffer (start at index 0) for GL_MAX/SUM output;
96     - remove starting & endding barrier (no longer needed)
97    o pkg/mdsio, writelocal:
98       works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined
99       (remove the STOP): uses shared buffer IO to store data from all threads
100       and then let master-thread write nThreads tiles.
101    o pkg/mdsio (read/write field):
102     - tiled IO done in 1 piece (all levels at a time);
103     - new header file "MDSIO_BUFF_3D.h" with 3-D buffers.
104     - multi-threaded: allow to read/write local (non-shared) array
105       (was already working with singleCpuIO ; now works also without);
106       => no longer needs barrier call after reading a file (added inside
107       mds_read/write field).
108     - move barrier calls outside gather/scatter_2d to mds_read/write_field
109    o pkg/obcs/exf
110      - exf_getffieldrec.F: add a few ". _d 0" and
111                            add code to catch the case fldperiod = 0.  
112      - obcs_precribe_read.F: change if statements so that they match
113                              the variable type (_RL)
114      - add a separate exf_iprec_obcs to exf_set_obcs (by default equal to
115        exf_iprec) as part of namelist EXF_NML_01
116    o pkg/mdsio:
117      - read/write tiled (local) files: read/write 1-level tile chunk at a time
118        (instead of segment of length sNx); expected to speed up tiled IO.
119    o pkg/exch2:
120      - take buffer copy from/to array out of S/R exch2_send/recv into new
121        S/R exch2_put/get ; Exch of local variable now works with MPI+MTH
122        (tested by removing commom block statement in SOLVE_FOR_PRESSURE.h).
123      - ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get)
124      - simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds
125        (which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by
126        including Topology header file (and common blocks).
127      - implement EXCH_IGNORE_CORNERS in scalar exchange (rx1);
128        remove 2nd exch call in exch2_s3d_rx (no longer needed).
129      - document S/R arg. list (+ update some comments)
130    o pkg/seaice:
131      - added SEAICE_CLIM_AIR code, which permits modulation of surface air
132        temperature and humidity over sea ice based on climatological values.
133      - clean up computation of Hibler+Bryan (1987) stress coupling for the case
134        of LSR (this change is expected to change the results slightly because now
135        it uses slightly difference moduli from the second last LSR solution, but
136        that is more consistent with the stress computations; this part of the code
137        is not tested in the verification experiments)
138      - fix diagnostics for flux of ice in case of B-grid
139      - turn strain rates eij and press into global fields within global
140        common block in SEAICE.h for more straighforward diagnostics
141      - fix diagnostics for principal stress components, press, zeta, eta
142        to give something meaning full
143    o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate
144      new output (all 4 tests) using default rotationPeriod.
145    o pkg KPP:
146      - add flag (LimitHblStable) to avoid limiting BL depth under stable conditions
147      - fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1
148        and normal grid from 1 to Nr)
149    o Fix computations of L4rdt in mom_calc_visc.F
150    o eesupp:
151      new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg):
152      should be called before a "stop" if we know that all process are going
153      to stop; if one Proc does call this S/R, will hang in MPI_FINALISE.
154    
155    checkpoint61o
156    o pkg/exch2: change check_depths to issue just a warning (instead of error+stop)
157    o model/src/ini_curvilinear_grid.F:
158       compute angleSin/CosC when they are not read from a file
159    o pkg/seaice:
160       add pseudo time stepping for LSOR
161    o pkg/exch2:
162       temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW
163    o pkg/seaice:
164       Adding separate sea ice albedo, drag coefficients, and HO in Southern
165       Ocean from those in Arctic Ocean.  See *_south in SEAICE_PARAMS.h
166    o SingleCpuIO:
167       fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used.
168    o pkg/seaice:
169       put exchanged variable in (local) common block for MPI+Multi-Threads
170       to work (necessary with exch1, and for now with exch2 too).
171    o verification: to get more experiments tested with mpi, mth and mpi+mth,
172      change tiling of:
173       aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15,
174       hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope
175      update output of exp:
176       exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5),
177       tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod)
178      + ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU
179                       (note: output.txt generated on faulks using only 1 tile)
180    o eesupp & mdsio (SingleCpuIO):
181     - remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time
182       parameter "W2_useE2ioLayOut" (read from file "data.exch2").
183       Note: was not effective for globalFile & useSingleCpuIO=F; now fixed.
184     - move MDSIO_SCPU.h (pkg/mdsio) to EEBUFF_SCPU.h (eesupp/inc).
185     - fix GLOBAL_SUM_SINGLECPU when using Exch2; re-use same buffers and same
186       gather/scatter S/R as with SingleCpuIO (=> 1 less 2D global RL array).
187    o pkg/exch2:
188     - new code to set-up W2-Exch2 topology (replace matlab-topology-generator):
189       read parameter file "data.exch2" if it exists; otherwise try default regular
190       cube without blank-tile; new header file "W2_EXCH2_SIZE.h";
191     - update matlab-topology-generator (exch2_setup_cs6_print.m) to be compatible
192       with new code (not to be used, just as a backup solution).
193     - add examples (e.g., for lat-lon-cap_120) of parameter file "data.exch2"
194       in utils/exch2/input.
195    
196    checkpoint61n
197    o eesupp & mdsio (SingleCpuIO):
198      - move mapping to global io-buffer inside gather_2d/scater_2d: this save
199        memory (1 less 2D global RL array); skip 1 buffer copy; and only send/
200        receive real*4 array (instead of real*8) to read/write 32.bit files.
201        (new template for gather_2d/scater_2d, new set of S/R MDS_PASS_R4,8toRL,S
202         and remove new mapping S/R)
203    o pkg/mdsio: in preparation for topology-generator within pkg/exch2:
204      - Change declaration of SingleCpuIO buffer, reduced to only 1 dim.:
205        xyBuffer_size, which is set to W2_ioBufferSize from W2_EXCH2_PARAMS.h
206        when using exch2. Add S/R to map global io-buffer to global model array.
207      - uses exch2_global_Nx,y instead of exch2_domain_nxt,nyt.
208    
209    checkpoint61m
210    o write_utils : change WRITE_1D_R8 to WRITE_1D_RL
211      and add 3 other S/R for other types (R4,R8,RS).
212      Change calls to WRITE_0D/1D_R[4,8,S,L] to match the type of argument.
213    o eesupp/inc/CPP_EEMACROS.h (EXCH & GLOBAL_SUM/MAX macros):
214     - ensure suffix (_R4,_R8,_RS,_RL) correspondance between macro and S/R ;
215     - reduce number of macro definitions (keep only those which are used);
216       can always call directly the corrresponding S/R if needed.
217     - everywhere in the code: change macros (EXCH & GLOBAL_SUM/MAX) suffix
218       _R4/_R8 to _RS/_RL when applied to _RS/_RL variable.
219     Fixed wrong type of arg in:
220       atm2d/put_ocnvars.F cheapaml/cheapaml.F ocn_compon_interf/ocn_apply_import.F
221       ctrl/ctrl_map_ini_ecco.F seaice/seaice_do_diags.F seaice/seaice_model.F
222     To fix: global_sum of var in common block is wrong (multi-threaded) in:
223       dic/dic_atmos.F ebm/ebm_area_t.F ebm/ebm_zonalmean.F sbo/sbo_calc.F
224     To fix: aim_v23/aim_do_co2.F (BARRIER & GLOBAL_SUM within bi,bj loops)
225    o adjustment.cs-32x32x1: test "blank tiles" when compiling with mpi; 2nd
226      "nlfs" mpi test is going to stop when checking for unconnected tile egdes.
227    o eesupp/src: new S/R to stop everyone when 1 (or more) Proc. find an error
228    o pkg/exch2: new S/R EXCH2_CHECK_DEPTHS to check that unconnected tile
229      edges are closed (zero depth); might happen with "blank tiles";
230      for now, disabled if using OBCS.
231    o tools/gemake2: delete modifs from March 27-29 2009 (with option "-mpi":
232      link *_mpi files from "MODS" dir) to return to a strait-forward behavior.
233    o move read_write.F to write_utils.F ; new parameter (maxLengthPrt1D)
234      to reduce length of 1.D array print in STDOUT.
235    o adjustment.cs-32x32x1: changed to oceanic test with 1 continent
236      + use 48 tiles (16x8): this will allow to test "blank tiles".
237    o start to test MPI + multi-threaded (change testreport to skip tests
238      where number of tiles do not match).
239    o genmake2: add option "-omp" to turn on Open-MP ;
240      passed to testreport (if using -mth) ; merge few (*+mth) optfiles.
241    o pkg/exch2 (+ utils/exch2): ignore blank tiles (instead of removing them)
242      and keep the original tile numbering. Note: compatible with old
243      W2_EXCH2_TOPOLOGY.h & w2_e2setup.F topology files.
244    
245    checkpoint61l
246    o Overlaps had been forgotten in calculating ijk keys : fixed
247    o fix cyrus makedepend for gcc 4.4
248    o experiment fizhi-cs-aqualev20:
249      switching to new version of S/R GETPWHERE (#define TRY_NEW_GETPWHERE)
250      and generate new output. Note: new output is much closer to the old
251      one (v1.8) generated with pgf77 -O2 on Mar 14 2007 than it is from
252      the previous one (v1.9) generated with pgf77 -O0 on Jun 13 2007.
253    o pkg/fizhi:
254     - change to avoid indices going deliberately over array-bounds
255     - remove unnecessary MPI stuff
256     - perpetual spring equinox with "#define FIZHI_USE_FIXED_DAY"
257     - new version of S/R GETPWHERE available with #define TRY_NEW_GETPWHERE:
258       does not go over array-bounds and therefore returns reliable output.
259     - in fizhi_driver.F & fizhi_turb.F, fix "get_alarm" calls:
260       this S/R has 4 output arguments, which are used inside "get_alarm";
261       when it is called with the same variable "ndum" in place of several
262       output arguments, this produces weird side effect inside "get_alarm"
263      (e.g., datein=dates(n) is overwritten by timein=times(n) since both
264       datein & timein, resp. 2nd and 3rd arg., are pointed to the same "ndum"
265       address) and produces error.
266    o tools/gemake2: (March 27-29 2009)
267      with option "-mpi": link *_mpi files from "MODS" dir (this is what
268      testreport does).
269    o lab_sea experiment: change from 2x1 tiles to 2x2 tiles and regenerate output
270    o pkg/seaice: fix bug in new version of S/R SEAICE_LSR.F:
271       update lab_sea.lsr & lab_sea.salt_plume results
272    o pkg/seaice:
273      Major overhaul of the LSOR solver: change discretization from original
274      finite differences to finite volume. The old routine is still in the
275      file seaice_lsr.F and can be turned on with the CPP-flag
276      SEAICE_OLD_AND_BAD_DISCRETIZATION
277      Along with this change, the discretization of the strain rates is changed.
278      The same flag turns on the old discretization in seaice_calc_strainrates.F
279      All verification experiments with seaice are affected (except for
280      seaice_exf_offline); global_ocean.cs32x15/input.icedyn recovers the old
281      results by setting the above flag.
282      Further changes involve changes in defaults:
283      - ALLOW_FLOODING is defined and turned on by default
284      - SEAICEadvSnow = .true. is now the default
285      - SEAICEadvSalt = .true. is now the default
286      - SEAICEadvAge  = .true. is now the default
287      - SEAICE_clipVelocities  = .false. is now the default
288                                         (as per J. Zhang's recommendation)
289      - B-grid, and thus not tested: SEAICE_TEST_ICE_STRESS_1/EXPLICIT_SSH_SLOPE
290        is defined, SEAICE_TEST_ICE_STRESS_1 is renamed into SEAICE_BICE_STRESS
291      - seaice_growth: replace computation of UG by a simple copy from wspeed
292    
293    checkpoint61k
294    o pkg/seaice: a few bug fixes mostly concerning the metric terms:
295      seaice_lsr: fixed a few metric terms,
296                  affects lab_sea.lsr, lab_sea.salt_plume, seaice_obcs
297                  add more debugging diagnostics
298      seaice_evp: removed superfluous many metric terms of FV discretization
299                  of stress divergence
300                  affects lab_sea, lab_sea.hb87
301      seaice_ocean_stress: removed superfluous many metric terms of FV discretization
302                  of stress divergence for non-evp solver
303                  (this part is not tested anywhere)
304      seaice_calc_strainrates: fixed a bug in no-slip boundary conditions,
305                  they were effectively only half slip
306                  affects lab_sea.hb87
307      updated all relevant verification experiments (except lab_sea//output_adm.txt
308        which was left over, but fails at level 7 & 6)
309    
310    checkpoint61j
311    o pkg/seaice: turn a few hard wired parameters into run time parameters
312    o pkg/seaice/exf/monitor: turn netcdf coordinate variable T into model
313      time in seconds as promised by the usints in seaice_monitor and exf_monitor
314    o pkg/mnc: fix the coordinate variables for multi-tile curvi-linear grids
315      that are not cubed-sphere grids
316    o pkg/seaice: fix a bug for the rare case of SEAICE_VECTORIZE_LSR
317  o pkg/ctrl:  o pkg/ctrl:
318    fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)    fix bug in ctrl_depth_ini.F (EXCH_XYZ was applied to 2-D field xx_r_low)
319  o non-hydrostatic (calc_gw.F):  o non-hydrostatic (calc_gw.F):

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