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Notes on tags used in MITgcmUV |
Notes on tags used in MITgcmUV |
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o pkg/seaice: |
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- simplify (?) ocean-drag coefficent computations by using |
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the same routine in all three solvers (saves some code lines) |
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- remove global fields DRAGA and DRAGS from C-grid code and |
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declare them locally in lsr.F (the only place where they are |
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still used) |
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o pkg/seaice: add Jacobian-free Newton Krylov solver for ice dynamics |
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(Lemieux et al. 2010, 2012). Turn on with the usual SEAICE_ALLOW_JFNK |
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and SEAICEuseJFNK=.true. A few things to note: |
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- involves a FGMRES, that is parallel but very inefficient, |
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because of many scalar products (global sums) in the Gram-Schmidt |
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orthogonalization method. Needs to be replaced. Original code |
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from J.-F. Lemieux |
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- preconditioner for FGMRES is a stripped down version of LSOR |
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- SOLV_MAX_ITERS is now used for LSOR as a solver and as a |
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preconditioner. For the preconditioner, the default is set to 10. |
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- Jacobian times vector is computed with finite differences |
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- marginally related to JFNK-solver: add a smooth regularization for |
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zeta with tanh that will improve convergence (Lemieux and Tremblay, |
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2009) for any implicit solver (not implemented for EVP because EVP |
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does not need this regularization in the first place). Define |
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SEAICE_ZETA_SMOOTHREG in SEAICE_OPTIONS.h to use. |
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o eesupp/src: |
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- check in genmake2 that intrinsic S/R flush is available. |
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- add S/R to flush IO unit (if intrinsic S/R flush is available) |
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- flush standard & error msg unit before MPI termination |
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- if debugMode, flush IO unit after printing msg |
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o pkg/ctrl: |
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- ctrl_unpack.F, ALLOW_GENARR3D_CONTROL code: fix missing argument in call |
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to ctrl_set_unpack_xyz. |
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checkpoint64 (2012/10/09) |
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o pkg/shelfice |
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- in mom_fluxform.F, mom_vecinv.F: |
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CALL SHELFICE_V_DRAG(bi,bj,k,vFld,KE,KappaRU,vF,myThid) |
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Bug fix KappaRU -> KappaRV |
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does not change verification/isomip but may change other setups |
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(presumably constant KappaRU=KappaRV) |
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- fix diagnostics SHIU/Vdrag (thanks to Tom Millgate) |
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o pkg/obcs: |
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- fixed some indexing bugs in obcs_seaice_sponge.F |
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- added obcs relaxation subroutines for HSALT and HSNOW |
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- changes verification/seaice_obcs/results/obcs_seaice_sponge.F |
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o pkg/seaice: |
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- add "multicategory" parameterization for snow in analogy to ice, |
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default is off for now. |
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o pkg/obcs: |
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- added obcs_seaice_sponge.F for obcs relaxation of seaice variables; |
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see verification/seaice_obcs/input.seaiceSponge for example application. |
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- remove local commom bloc "OBCS_GLOBAL" in obcs_readparms.F and do all the OB |
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index setting by master-thread. This fix multi-threads Pb in previous modifs. |
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o pkg/layers : |
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- add diagnostics to pkg/layers |
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- move the meat of pkg/layers from layers_calc.F to layers_fluxcalc.F |
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(from R.Tulloch). Layers_calc.F now calls layers_fluxcalc.F accordingly. |
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o pkg/generic_advdiff/gad_implicit_r.F : |
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- fix ADVr diagnostics in case of both implicit vertical advection and diffusion. |
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o pkg/seaice/seaice_growth.F: |
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- fix SItflux diagnostics in virtual salt flux + balanceEmpmr case. |
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o pkg/obcs: |
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- change default setting of OBCS_UVICE_OLD from defined to undef; |
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- use new parameter OB_indexNone for null index value (instead of hard-coded 0) |
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in all pkg/obcs code and in other pkgs; remove k loop in obcs_check_depths.F; |
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- pass OB_indexNone as (new) argument to S/R CTRL_MASK_SET_[X,Y]Z; |
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- change OB null index value (OB_indexNone) to -99 ; this fix the problem |
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with Southern & Western OB at a tile edge (at least in a simple set-up). |
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o pkg/obcs: |
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- change settings of OB index in case OB coincides with tile edge (shared by |
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2 tiles), so that common OB location is registered by both tiles (instead of |
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only 1). However, for Southern and Western OB, index value = 0 is not |
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recognized as valid OB index (=default null value) and needs to be fixed. |
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- modify accordingly OBCS_BALANCE_FLOW and OBCS_MONITOR (avoid double counting) |
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- new parameter "OB_indexNone" for null index value (for now, still zero) |
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to replace hard-coded null index value of zero. |
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o pkg/exch2: |
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- improve W2_USE_E2_SAFEMODE (faster) and W2_E2_DEBUG_ON: |
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always check buffer-size (but outside the loop); move checking for valid |
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index from W2_USE_E2_SAFEMODE to W2_E2_DEBUG_ON; in W2_E2_DEBUG_ON, |
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print each tile and point connection only if |W2_printMsg|>= 2 and 3. |
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o pkg/ctrl (pack & unpack): |
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- in ctrl_pack.F & ctrl_unpack.F, use the same local file-name variable |
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(locally defined) for different variables (+ remove the variable-specific |
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file name in CTRL_GENARR.h). For now, only implemented for GENARR2/3D_CONTROL |
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(to be extended to other local file names in ctrl.h). |
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o pkg/flt: |
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- add a FLT_Iter0 option (similar to PTRACERS_Iter0). |
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o pkg/mdsio: |
o pkg/mdsio: |
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- fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing |
- fix missing STOP in mdsio_readvec_loc.F (case ioUnit=0) when file is missing |
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o tools/genmake2: |
o tools/genmake2: |
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