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Notes on tags used in MITgcmUV |
Notes on tags used in MITgcmUV |
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============================== |
============================== |
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o cg2d: |
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use simple EXCH (overlap size = 1 and ignore corners), like in cg3d.F : |
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this reduces number of EXCH calls by 2 when using exch2. |
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For now, keep previous size array for gc2d_nsa.F to avoid Pb with store |
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directives and missing simple EXCH (exch_s3d_rx) adjoint code. |
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o pkg/thsice: |
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add code for Near Infra-Red albedo (from Jeff) |
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(turned on with run-time flag: thSIce_calc_albNIR, in data.ice). |
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o ini_model_io: |
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move (from packages_readparms.F & initialise_fixed.F) to ini_model_io.F |
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MNC & MONITOR initialisation calls; move MNC calls from {pkg}_readparms.F |
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to {pkg}_init_fixed.F for {pkg}= kpp, seaice & shelfice. |
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checkpoint61s |
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o pkg/exch2 (exch2_rxN_cube*): |
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remove last BARRIER (no need to synchronise after getting data from shared |
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buffer (get) as long as any change to buffer (put,recv) is between BARRIER) |
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o change tiling of natl_box (from 2 to 4 tiles) to get it tested with MPI+MTH |
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and generate new output (for the 2 tests) using default rotationPeriod. |
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o pkg/exch2: |
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- always call exch2_*_cube, not exch-1 anymore, if useCubedSphereExchange=F |
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(was already the case with AUTODIFF_EXCH2 defined) |
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- add bj in exch2 arrays and S/R. |
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- can now use pkg/exch2 for regular (non CS) set-up; switch test experiment |
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MLAdjust to exch2 (identical results except with MPI -> truncation diff); |
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o add pkg/longstep for ptracer timestep a multiple of U/V/T/S timestep |
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- adds deltaT argument to the subroutines TIMESTEP_TRACER DWNSLP_APPLY |
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GAD_ADVECTION GAD_CALC_RHS GAD_IMPLICIT_R GAD_SOM_ADVECT |
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- verification experiment natl_box.longstep |
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o build_options: ifort+mpi_aces optfile (following Constantinos advise): |
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allow different versions of ifort (8 or 9) and different versions |
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of mpi (mpich or mpich2) to be used with the same optfile. |
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requires to load a netcdf module and set MPI_INC_DIR (see comments inside |
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optfile). Change testing scripts (example_scripts/ACESgrid) accordingly. |
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o pkg/seaice: |
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fix previous modif (3-level field removed) for old-pickup reading |
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checkpoint61r |
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o pkg/seaice: |
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- clean up the 3-time levels of UICE,VICE,HEFF,AREA in three steps: |
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1. introduce fields for time step (N-1) |
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2. do not use levels 2 and 3 anymore (but keep them) |
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3. replace 3D versions of UICE,VICE,HEFF,AREA by 2D versions. This |
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includes changes to pkg/thsice/thsice_get_velocity.F, |
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model/src/external_forcing_surf.F, pkg/obcs/obcs_apply_seaice.F, and |
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pkg/obcs/obcs_apply_uvice.F. |
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- completely remove code for leap-frog time stepping for second order |
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advection |
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- adjusted adjoint accordingly; |
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gradient checks have improved by an order of magnitude! |
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checkpoint61q |
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o pkg/seaice: fix bug in free slip boundary conditons for LSOR solver |
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- the boundary conditions along open boundaries are unclear, because the |
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associated masks are set to zero and are thus treated as closed when |
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applying the slip-boundary conditions. |
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- move initialisation of grid variables from seaice_init_varia to _fixed |
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o adding doc/diags_changes.txt |
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o model/src: |
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do_the_model_io: rename few pkg S/R which are called from do_the_model_io, |
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to avoid "_diags" naming if no relation to pkg/diagnostics. |
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ini_theta,ini_salt: fix (at least compile the code) reading from NetCDF |
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file and only call PLOT_FIELD_XYZ if debugMode=T. |
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remove few PLOT_FIELD_XY calls outside initialisation. |
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remove few unnecessary BARRIER. |
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o pkg/salt_plume: add SaltPlumeSouthernOcean to allow disabling |
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of salt_plume package in Southern Ocean |
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o pkg/thsice: |
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- fix hOceMxL in overlap (needed for sea-ice advection); |
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update output of experiment global_ocean.cs32x15.icedyn. |
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o pkg/seaice: |
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- make the (placeholder-)tracer IceAge a little more meaningful |
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by avoiding ridging of age due to convergent ice flow |
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- add diagnostics for surface temperature, atmospheric and oceanic |
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heat flux, and atmospheric and oceanic ice growth |
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checkpoint61p |
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o eesupp (global_max & global_sum): |
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- add one more element to buffer (start at index 0) for GL_MAX/SUM output; |
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- remove starting & endding barrier (no longer needed) |
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o pkg/mdsio, writelocal: |
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works also in multi-threaded when LOCBIN_IO_THREAD_SAFE is undefined |
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(remove the STOP): uses shared buffer IO to store data from all threads |
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and then let master-thread write nThreads tiles. |
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o pkg/mdsio (read/write field): |
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- tiled IO done in 1 piece (all levels at a time); |
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- new header file "MDSIO_BUFF_3D.h" with 3-D buffers. |
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- multi-threaded: allow to read/write local (non-shared) array |
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(was already working with singleCpuIO ; now works also without); |
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=> no longer needs barrier call after reading a file (added inside |
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mds_read/write field). |
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- move barrier calls outside gather/scatter_2d to mds_read/write_field |
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o pkg/obcs/exf |
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- exf_getffieldrec.F: add a few ". _d 0" and |
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add code to catch the case fldperiod = 0. |
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- obcs_precribe_read.F: change if statements so that they match |
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the variable type (_RL) |
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- add a separate exf_iprec_obcs to exf_set_obcs (by default equal to |
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exf_iprec) as part of namelist EXF_NML_01 |
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o pkg/mdsio: |
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- read/write tiled (local) files: read/write 1-level tile chunk at a time |
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(instead of segment of length sNx); expected to speed up tiled IO. |
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o pkg/exch2: |
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- take buffer copy from/to array out of S/R exch2_send/recv into new |
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S/R exch2_put/get ; Exch of local variable now works with MPI+MTH |
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(tested by removing commom block statement in SOLVE_FOR_PRESSURE.h). |
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- ad version of send/recv no longer needed (but needs exch2_ad_put/ad_get) |
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- simplify argument list of S/R exch2_get_uv_bounds and exch2_get_scal_bounds |
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(which replaces exch2_get_recv_bounds & exch2_get_send_bounds) by |
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including Topology header file (and common blocks). |
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- implement EXCH_IGNORE_CORNERS in scalar exchange (rx1); |
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remove 2nd exch call in exch2_s3d_rx (no longer needed). |
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- document S/R arg. list (+ update some comments) |
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o pkg/seaice: |
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- added SEAICE_CLIM_AIR code, which permits modulation of surface air |
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temperature and humidity over sea ice based on climatological values. |
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- clean up computation of Hibler+Bryan (1987) stress coupling for the case |
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of LSR (this change is expected to change the results slightly because now |
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it uses slightly difference moduli from the second last LSR solution, but |
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that is more consistent with the stress computations; this part of the code |
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is not tested in the verification experiments) |
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- fix diagnostics for flux of ice in case of B-grid |
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- turn strain rates eij and press into global fields within global |
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common block in SEAICE.h for more straighforward diagnostics |
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- fix diagnostics for principal stress components, press, zeta, eta |
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to give something meaning full |
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o change tiling of global_ocean.cs32x15 (12 tiles, 32x16) and generate |
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new output (all 4 tests) using default rotationPeriod. |
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o pkg KPP: |
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- add flag (LimitHblStable) to avoid limiting BL depth under stable conditions |
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- fix vertical indices in RI_IWMIX (match between KPP grid from 0 to Nr+1 |
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and normal grid from 1 to Nr) |
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o Fix computations of L4rdt in mom_calc_visc.F |
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o eesupp: |
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new S/R ALL_PROC_DIE (like EEDIE, without irrelevant threads err msg): |
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should be called before a "stop" if we know that all process are going |
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to stop; if one Proc does call this S/R, will hang in MPI_FINALISE. |
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checkpoint61o |
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o pkg/exch2: change check_depths to issue just a warning (instead of error+stop) |
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o model/src/ini_curvilinear_grid.F: |
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compute angleSin/CosC when they are not read from a file |
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o pkg/seaice: |
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add pseudo time stepping for LSOR |
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o pkg/exch2: |
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temporary fix for exch2_s3d_rx; update results of exp. hs94.cs-32x32x5.impIGW |
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o pkg/seaice: |
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Adding separate sea ice albedo, drag coefficients, and HO in Southern |
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Ocean from those in Arctic Ocean. See *_south in SEAICE_PARAMS.h |
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o SingleCpuIO: |
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fix bug put before chkp61n (May 11), when more than 2 MPI cpu are used. |
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o pkg/seaice: |
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put exchanged variable in (local) common block for MPI+Multi-Threads |
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to work (necessary with exch1, and for now with exch2 too). |
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o verification: to get more experiments tested with mpi, mth and mpi+mth, |
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change tiling of: |
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aim.5l_Equatorial_Channel, aim.5l_LatLon, dome, exp4, global_ocean.90x40x15, |
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hs94.cs-32x32x5, MLAdjust, offline_exf_seaice & tutorial_plume_on_slope |
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update output of exp: |
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exp4, global_ocean.90x40x15(+.dwslp), MLAdjust(all 5), |
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tutorial_plume_on_slope and hs94.cs-32x32x5 (use default rotationPeriod) |
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+ ideal_2D_ocean: use default rotation period + test Global_Sum_SINGLECPU |
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(note: output.txt generated on faulks using only 1 tile) |
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o eesupp & mdsio (SingleCpuIO): |
o eesupp & mdsio (SingleCpuIO): |
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- remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time |
- remove MISSING_TILE_IO (from MDSIO_OPTIONS.h), replaced by run-time |
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parameter "W2_useE2ioLayOut" (read from file "data.exch2"). |
parameter "W2_useE2ioLayOut" (read from file "data.exch2"). |
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