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C $Header: /u/gcmpack/MITgcm/pkg/obcs/obcs_readparms.F,v 1.30 2011/02/28 15:22:09 jmc Exp $ |
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C $Name: $ |
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|
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#include "OBCS_OPTIONS.h" |
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|
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CBOP |
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C !ROUTINE: OBCS_READPARMS |
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C !INTERFACE: |
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SUBROUTINE OBCS_READPARMS( myThid ) |
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|
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE OBCS_READPARMS |
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C | o Routine to initialize OBCS variables and constants. |
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C *==========================================================* |
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C \ev |
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|
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C !USES: |
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IMPLICIT NONE |
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C === Global variables === |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "OBCS.h" |
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#ifdef ALLOW_ORLANSKI |
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#include "ORLANSKI.h" |
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#endif |
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#ifdef ALLOW_PTRACERS |
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#include "PTRACERS_SIZE.h" |
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#include "OBCS_PTRACERS.h" |
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#endif /* ALLOW_PTRACERS */ |
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#ifdef ALLOW_EXCH2 |
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#include "W2_EXCH2_SIZE.h" |
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#include "W2_EXCH2_TOPOLOGY.h" |
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#include "W2_EXCH2_PARAMS.h" |
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#endif /* ALLOW_EXCH2 */ |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C === Routine arguments === |
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INTEGER myThid |
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|
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#ifdef ALLOW_OBCS |
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|
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C !LOCAL VARIABLES: |
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C === Local variables === |
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C msgBuf :: Informational/error message buffer |
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C iUnit :: Work variable for IO unit number |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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INTEGER iUnit |
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INTEGER I, J |
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INTEGER bi, bj, iG, jG, iGm, jGm |
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#ifdef ALLOW_PTRACERS |
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INTEGER iTracer |
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#endif |
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#ifdef ALLOW_EXCH2 |
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INTEGER tN |
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#endif /* ALLOW_EXCH2 */ |
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|
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C These are input arrays (of integers) that contain the *absolute* |
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C computational index of an open-boundary (OB) point. |
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C A zero (0) element means there is no corresponding OB in that column/row. |
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C The computational coordinate refers to "tracer" cells. |
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C For a northern/southern OB, the OB V point is to the south/north. |
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C For an eastern/western OB, the OB U point is to the west/east. |
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C eg. |
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C OB_Jnorth(3)=34 means that: |
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C T( 3 ,34) is a an OB point |
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C U(3:4,34) is a an OB point |
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C V( 4 ,34) is a an OB point |
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C while |
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C OB_Jsouth(3)=1 means that: |
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C T( 3 ,1) is a an OB point |
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C U(3:4,1) is a an OB point |
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C V( 4 ,2) is a an OB point |
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C |
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C For convenience, negative values for Jnorth/Ieast refer to |
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C points relative to the Northern/Eastern edges of the model |
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C eg. OB_Jnorth(3)=-1 means that the point (3,Ny) is a northern O-B. |
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C |
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C With exch2, the global domain used for specifying the boundary (and |
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C boundary value files) is different for N,S and E,W boundaries: |
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C - for N,S, the facets are stacked in x (like W2_mapIO=-1) |
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C - for E,W, the facets are stacked in y, so that E,W boundaries in |
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C different facets cannot have the same I |
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C |
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C OB_Jnorth(W2_maxXStackNx) :: global index array of northern open-boundary point |
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C OB_Jsouth(W2_maxXStackNx) :: global index array of southern open-boundary point |
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C OB_Ieast(W2_maxYStackNy) :: global index array of eastern open-boundary point |
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C OB_Iwest(W2_maxYStackNy) :: global index array of western open-boundary point |
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|
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COMMON/OBCS_GLOBAL/ OB_Jnorth, OB_Jsouth, OB_Ieast, OB_Iwest |
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#ifdef ALLOW_EXCH2 |
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INTEGER OB_Jnorth(W2_maxXStackNx) |
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INTEGER OB_Jsouth(W2_maxXStackNx) |
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INTEGER OB_Ieast(W2_maxYStackNy) |
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INTEGER OB_Iwest(W2_maxYStackNy) |
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#else |
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INTEGER OB_Jnorth(Nx) |
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INTEGER OB_Jsouth(Nx) |
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INTEGER OB_Ieast(Ny) |
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INTEGER OB_Iwest(Ny) |
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#endif |
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|
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C With exch2, we use different global domains for specifying |
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C N,S resp. E,W boundaries (and for reading in the corresponding data): |
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C |
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C OBNS_Nx :: width of global domain for OB_Jnorth, OB_Jsouth |
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C OBNS_Ny :: height of global domain for OB_Jnorth, OB_Jsouth |
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C OBEW_Nx :: width of global domain for OB_Ieast, OB_Iwest |
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C OBEW_Ny :: height of global domain for OB_Ieast, OB_Iwest |
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|
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INTEGER OBNS_Nx, OBNS_Ny |
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INTEGER OBEW_Nx, OBEW_Ny |
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|
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#ifdef ALLOW_EXCH2 |
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C buf :: used to exchange OB_Jnorth, ... |
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_RS buf(1-Olx:sNx+Olx,1-Oly:sNy+Oly,nSx,nSy) |
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#endif |
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CEOP |
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|
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NAMELIST /OBCS_PARM01/ |
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& insideOBmaskFile, |
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& OB_Jnorth,OB_Jsouth,OB_Ieast,OB_Iwest, |
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& useOrlanskiNorth,useOrlanskiSouth, |
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& useOrlanskiEast,useOrlanskiWest, |
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& useStevensNorth,useStevensSouth, |
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& useStevensEast,useStevensWest, |
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& OBNuFile,OBNvFile,OBNtFile,OBNsFile,OBNaFile,OBNhFile, |
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& OBSuFile,OBSvFile,OBStFile,OBSsFile,OBSaFile,OBShFile, |
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& OBEuFile,OBEvFile,OBEtFile,OBEsFile,OBEaFile,OBEhFile, |
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& OBWuFile,OBWvFile,OBWtFile,OBWsFile,OBWaFile,OBWhFile, |
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& OBNslFile,OBSslFile,OBEslFile,OBWslFile, |
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& OBNsnFile,OBSsnFile,OBEsnFile,OBWsnFile, |
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& OBNuiceFile,OBSuiceFile,OBEuiceFile,OBWuiceFile, |
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& OBNviceFile,OBSviceFile,OBEviceFile,OBWviceFile, |
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& OBNetaFile, OBSetaFile, OBEetaFile, OBWetaFile, |
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& OBNwFile, OBSwFile, OBEwFile, OBWwFile, |
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#ifdef ALLOW_PTRACERS |
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& OBNptrFile,OBSptrFile,OBEptrFile,OBWptrFile, |
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#endif |
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& useOBCSsponge, useOBCSbalance, useOBCSprescribe, |
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& OBCS_balanceFacN, OBCS_balanceFacS, |
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& OBCS_balanceFacE, OBCS_balanceFacW, |
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& useOBCSYearlyFields, OBCSfixTopo, |
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& OBCS_monitorFreq, OBCS_monSelect, OBCSprintDiags |
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|
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#ifdef ALLOW_ORLANSKI |
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NAMELIST /OBCS_PARM02/ |
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& CMAX, cvelTimeScale, CFIX, useFixedCEast, useFixedCWest |
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#endif |
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|
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#ifdef ALLOW_OBCS_SPONGE |
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NAMELIST /OBCS_PARM03/ |
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& Urelaxobcsinner,Urelaxobcsbound, |
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& Vrelaxobcsinner,Vrelaxobcsbound, |
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& spongeThickness |
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#endif |
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#ifdef ALLOW_OBCS_STEVENS |
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NAMELIST /OBCS_PARM04/ |
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& TrelaxStevens,SrelaxStevens, |
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& useStevensPhaseVel,useStevensAdvection |
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#endif /* ALLOW_OBCS_STEVENS */ |
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|
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_BEGIN_MASTER(myThid) |
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|
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#ifdef ALLOW_EXCH2 |
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OBNS_Nx = exch2_xStack_Nx |
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OBNS_Ny = exch2_xStack_Ny |
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OBEW_Nx = exch2_yStack_Nx |
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OBEW_Ny = exch2_yStack_Ny |
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#else |
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OBNS_Nx = Nx |
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OBNS_Ny = Ny |
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OBEW_Nx = Nx |
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OBEW_Ny = Ny |
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#endif |
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|
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C-- Default flags and values for OBCS |
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insideOBmaskFile = ' ' |
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DO I=1,OBNS_Nx |
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OB_Jnorth(I)=0 |
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OB_Jsouth(I)=0 |
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ENDDO |
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DO J=1,OBEW_Ny |
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OB_Ieast(J)=0 |
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OB_Iwest(J)=0 |
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ENDDO |
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useOrlanskiNorth =.FALSE. |
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useOrlanskiSouth =.FALSE. |
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useOrlanskiEast =.FALSE. |
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useOrlanskiWest =.FALSE. |
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useStevensNorth =.FALSE. |
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useStevensSouth =.FALSE. |
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useStevensEast =.FALSE. |
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useStevensWest =.FALSE. |
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useStevensPhaseVel =.TRUE. |
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useStevensAdvection=.TRUE. |
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useOBCSsponge =.FALSE. |
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useOBCSbalance =.FALSE. |
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OBCS_balanceFacN = 1. _d 0 |
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OBCS_balanceFacS = 1. _d 0 |
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OBCS_balanceFacE = 1. _d 0 |
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OBCS_balanceFacW = 1. _d 0 |
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useOBCSprescribe =.FALSE. |
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useOBCSYearlyFields=.FALSE. |
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OBCSfixTopo =.TRUE. |
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OBCS_monitorFreq = monitorFreq |
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OBCS_monSelect = 0 |
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OBCSprintDiags = debugLevel.GE.debLevB |
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|
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OBNuFile = ' ' |
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OBNvFile = ' ' |
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OBNtFile = ' ' |
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OBNsFile = ' ' |
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OBNaFile = ' ' |
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OBNslFile = ' ' |
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OBNsnFile = ' ' |
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OBNuiceFile = ' ' |
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OBNviceFile = ' ' |
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OBNhFile = ' ' |
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OBSuFile = ' ' |
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OBSvFile = ' ' |
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OBStFile = ' ' |
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OBSsFile = ' ' |
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OBSaFile = ' ' |
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OBShFile = ' ' |
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OBSslFile = ' ' |
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OBSsnFile = ' ' |
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OBSuiceFile = ' ' |
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OBSviceFile = ' ' |
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OBEuFile = ' ' |
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OBEvFile = ' ' |
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OBEtFile = ' ' |
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OBEsFile = ' ' |
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OBEaFile = ' ' |
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OBEhFile = ' ' |
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OBEslFile = ' ' |
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OBEsnFile = ' ' |
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OBEuiceFile = ' ' |
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OBEviceFile = ' ' |
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OBWuFile = ' ' |
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OBWvFile = ' ' |
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OBWtFile = ' ' |
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OBWsFile = ' ' |
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OBWaFile = ' ' |
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OBWhFile = ' ' |
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OBWslFile = ' ' |
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OBWsnFile = ' ' |
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OBWuiceFile = ' ' |
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OBWviceFile = ' ' |
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OBNetaFile = ' ' |
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OBSetaFile = ' ' |
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OBEetaFile = ' ' |
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OBWetaFile = ' ' |
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OBNwFile = ' ' |
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OBSwFile = ' ' |
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OBEwFile = ' ' |
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OBWwFile = ' ' |
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#ifdef ALLOW_PTRACERS |
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DO iTracer = 1, PTRACERS_num |
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OBNptrFile(iTracer) = ' ' |
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OBSptrFile(iTracer) = ' ' |
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OBEptrFile(iTracer) = ' ' |
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OBWptrFile(iTracer) = ' ' |
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ENDDO |
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#endif |
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|
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C Open and read the data.obcs file |
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WRITE(msgBuf,'(A)') ' OBCS_READPARMS: opening data.obcs' |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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CALL OPEN_COPY_DATA_FILE( |
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I 'data.obcs', 'OBCS_READPARMS', |
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O iUnit, |
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I myThid ) |
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|
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C-- Read parameters from open data file |
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READ(UNIT=iUnit,NML=OBCS_PARM01) |
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|
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#ifdef ALLOW_ORLANSKI |
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C Default Orlanski radiation parameters |
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CMAX = 0.45 _d 0 /* maximum allowable phase speed-CFL for AB-II */ |
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cvelTimeScale = 2000.0 _d 0 /* Averaging period for phase speed in sec. */ |
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CFIX = 0.8 _d 0 /* Fixed boundary phase speed in m/s */ |
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useFixedCEast=.FALSE. |
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useFixedCWest=.FALSE. |
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IF (useOrlanskiNorth.OR. |
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& useOrlanskiSouth.OR. |
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& useOrlanskiEast.OR. |
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& useOrlanskiWest) |
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& READ(UNIT=iUnit,NML=OBCS_PARM02) |
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#endif |
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|
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#ifdef ALLOW_OBCS_SPONGE |
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C Default sponge layer parameters: |
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C sponge layer is turned off by default |
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spongeThickness = 0 |
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Urelaxobcsinner = 0. _d 0 |
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Urelaxobcsbound = 0. _d 0 |
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Vrelaxobcsinner = 0. _d 0 |
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Vrelaxobcsbound = 0. _d 0 |
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CML this was the previous default in units of days |
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CML spongeThickness = 2 |
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CML Urelaxobcsinner = 5. _d 0 |
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CML Urelaxobcsbound = 1. _d 0 |
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CML Vrelaxobcsinner = 5. _d 0 |
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CML Vrelaxobcsbound = 1. _d 0 |
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IF (useOBCSsponge) |
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& READ(UNIT=iUnit,NML=OBCS_PARM03) |
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#endif |
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#ifdef ALLOW_OBCS_STEVENS |
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TrelaxStevens = 0. _d 0 |
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SrelaxStevens = 0. _d 0 |
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IF ( useStevensNorth .OR. useStevensSouth |
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& .OR. useStevensEast .OR. useStevensWest ) |
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& READ(UNIT=iUnit,NML=OBCS_PARM04) |
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#endif |
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|
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WRITE(msgBuf,'(A)') ' OBCS_READPARMS: finished reading data.obcs' |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT , myThid ) |
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|
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C-- Close the open data file |
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CLOSE(iUnit) |
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|
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C- Account for periodicity if negative indices were supplied |
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DO J=1,OBEW_Ny |
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IF (OB_Ieast(J).LT.0) OB_Ieast(J)=OB_Ieast(J)+OBEW_Nx+1 |
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ENDDO |
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DO I=1,OBNS_Nx |
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IF (OB_Jnorth(I).LT.0) OB_Jnorth(I)=OB_Jnorth(I)+OBNS_Ny+1 |
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ENDDO |
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IF ( debugLevel.GE.debLevA ) THEN |
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c write(*,*) 'OB Jn =',OB_Jnorth |
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c write(*,*) 'OB Js =',OB_Jsouth |
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c write(*,*) 'OB Ie =',OB_Ieast |
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c write(*,*) 'OB Iw =',OB_Iwest |
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WRITE(msgBuf,'(A)') ' Northern OB global indices : OB_Jnorth =' |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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CALL PRINT_LIST_I( OB_Jnorth, 1, OBNS_Nx, INDEX_I, |
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& .FALSE., .TRUE., standardMessageUnit ) |
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WRITE(msgBuf,'(A)') ' Southern OB global indices : OB_Jsouth =' |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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CALL PRINT_LIST_I( OB_Jsouth, 1, OBNS_Nx, INDEX_I, |
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& .FALSE., .TRUE., standardMessageUnit ) |
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WRITE(msgBuf,'(A)') ' Eastern OB global indices : OB_Ieast =' |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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& SQUEEZE_RIGHT, myThid ) |
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CALL PRINT_LIST_I( OB_Ieast, 1, OBEW_Ny, INDEX_J, |
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& .FALSE., .TRUE., standardMessageUnit ) |
| 353 |
WRITE(msgBuf,'(A)') ' Western OB global indices : OB_Iwest =' |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 355 |
& SQUEEZE_RIGHT, myThid ) |
| 356 |
CALL PRINT_LIST_I( OB_Iwest, 1, OBEW_Ny, INDEX_J, |
| 357 |
& .FALSE., .TRUE., standardMessageUnit ) |
| 358 |
WRITE(msgBuf,'(A)') ' ' |
| 359 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 360 |
& SQUEEZE_RIGHT, myThid ) |
| 361 |
ENDIF |
| 362 |
|
| 363 |
_END_MASTER(myThid) |
| 364 |
C-- Everyone else must wait for the parameters to be loaded |
| 365 |
_BARRIER |
| 366 |
|
| 367 |
C-- Calculate the tiled index arrays OB_Jn/Js/Ie/Iw here from the |
| 368 |
C global arrays OB_Jnorth/Jsouth/Ieast/Iwest. |
| 369 |
C Note: This part of the code has been moved from obcs_init_fixed to |
| 370 |
C routine routine because the OB_Jn/Js/Ie/Iw index arrays are |
| 371 |
C required by ini_depth which is called before obcs_init_fixed |
| 372 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 373 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 374 |
|
| 375 |
DO I=1-Olx,sNx+Olx |
| 376 |
OB_Jn(I,bi,bj)=0 |
| 377 |
OB_Js(I,bi,bj)=0 |
| 378 |
ENDDO |
| 379 |
|
| 380 |
DO J=1-Oly,sNy+Oly |
| 381 |
OB_Ie(J,bi,bj)=0 |
| 382 |
OB_Iw(J,bi,bj)=0 |
| 383 |
ENDDO |
| 384 |
|
| 385 |
#ifdef ALLOW_EXCH2 |
| 386 |
C We apply OBCS only inside tile and exchange overlaps later |
| 387 |
tN = W2_myTileList(bi,bj) |
| 388 |
C 1. N/S boundaries |
| 389 |
DO J=1,sNy |
| 390 |
C convert from local y index J to global y index jG |
| 391 |
c for N/S boundaries, we use faces stacked in x direction |
| 392 |
jG = exch2_tyXStackLo(tN)+J-1 |
| 393 |
C loop over local x index I |
| 394 |
DO I=1,sNx |
| 395 |
iG = exch2_txXStackLo(tN)+I-1 |
| 396 |
IF (jG.EQ.OB_Jnorth(iG)) OB_Jn(I,bi,bj)=J |
| 397 |
IF (jG.EQ.OB_Jsouth(iG)) OB_Js(I,bi,bj)=J |
| 398 |
ENDDO |
| 399 |
ENDDO |
| 400 |
C 2. E/W boundaries |
| 401 |
DO J=1,sNy |
| 402 |
C convert from local y index J to global y index jG |
| 403 |
c for E/W boundaries, we use faces stacked in y direction |
| 404 |
jG = exch2_tyYStackLo(tN)+J-1 |
| 405 |
C loop over local x index I |
| 406 |
DO I=1,sNx |
| 407 |
iG = exch2_txYStackLo(tN)+I-1 |
| 408 |
IF (iG.EQ.OB_Ieast(jG)) OB_Ie(J,bi,bj)=I |
| 409 |
IF (iG.EQ.OB_Iwest(jG)) OB_Iw(J,bi,bj)=I |
| 410 |
ENDDO |
| 411 |
ENDDO |
| 412 |
|
| 413 |
#else /* ALLOW_EXCH2 */ |
| 414 |
|
| 415 |
DO J=1-Oly,sNy+Oly |
| 416 |
C convert from local y index J to global y index jG |
| 417 |
jG = myYGlobalLo-1+(bj-1)*sNy+J |
| 418 |
C use periodicity to deal with out of range points caused by the overlaps. |
| 419 |
C they will be excluded by the mask in any case, but this saves array |
| 420 |
C out-of-bounds errors here. |
| 421 |
jGm = 1+mod( jG-1+Ny , Ny ) |
| 422 |
C loop over local x index I |
| 423 |
DO I=1,sNx |
| 424 |
iG = myXGlobalLo-1+(bi-1)*sNx+I |
| 425 |
iGm = 1+mod( iG-1+Nx , Nx ) |
| 426 |
C OB_Ieast(jGm) allows for the eastern boundary to be at variable x locations |
| 427 |
IF (iG.EQ.OB_Ieast(jGm)) OB_Ie(J,bi,bj)=I |
| 428 |
IF (iG.EQ.OB_Iwest(jGm)) OB_Iw(J,bi,bj)=I |
| 429 |
ENDDO |
| 430 |
ENDDO |
| 431 |
DO J=1,sNy |
| 432 |
jG = myYGlobalLo-1+(bj-1)*sNy+J |
| 433 |
jGm = 1+mod( jG-1+Ny , Ny ) |
| 434 |
DO I=1-Olx,sNx+Olx |
| 435 |
iG = myXGlobalLo-1+(bi-1)*sNx+I |
| 436 |
iGm = 1+mod( iG-1+Nx , Nx ) |
| 437 |
C OB_Jnorth(iGm) allows for the northern boundary to be at variable y locations |
| 438 |
IF (jG.EQ.OB_Jnorth(iGm)) OB_Jn(I,bi,bj)=J |
| 439 |
IF (jG.EQ.OB_Jsouth(iGm)) OB_Js(I,bi,bj)=J |
| 440 |
ENDDO |
| 441 |
ENDDO |
| 442 |
#endif /* ALLOW_EXCH2 */ |
| 443 |
|
| 444 |
C bi,bj-loops |
| 445 |
ENDDO |
| 446 |
ENDDO |
| 447 |
|
| 448 |
#ifdef ALLOW_EXCH2 |
| 449 |
C exchange with neighbors |
| 450 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 451 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 452 |
DO J=1,sNy |
| 453 |
buf(sNx,J,bi,bj) = OB_Ie(J,bi,bj) |
| 454 |
buf( 1,J,bi,bj) = OB_Iw(J,bi,bj) |
| 455 |
ENDDO |
| 456 |
ENDDO |
| 457 |
ENDDO |
| 458 |
CALL EXCH_3D_RS( buf, 1, myThid ) |
| 459 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 460 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 461 |
DO J=1-Oly,sNy+Oly |
| 462 |
OB_Ie(J,bi,bj) = buf(sNx,J,bi,bj) |
| 463 |
OB_Iw(J,bi,bj) = buf( 1,J,bi,bj) |
| 464 |
ENDDO |
| 465 |
ENDDO |
| 466 |
ENDDO |
| 467 |
|
| 468 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 469 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 470 |
DO I=1,sNx |
| 471 |
buf(I,sNy,bi,bj) = OB_Jn(I,bi,bj) |
| 472 |
buf(I, 1,bi,bj) = OB_Js(I,bi,bj) |
| 473 |
ENDDO |
| 474 |
ENDDO |
| 475 |
ENDDO |
| 476 |
CALL EXCH_3D_RS( buf, 1, myThid ) |
| 477 |
DO bj = myByLo(myThid), myByHi(myThid) |
| 478 |
DO bi = myBxLo(myThid), myBxHi(myThid) |
| 479 |
DO I=1-Olx,sNx+Olx |
| 480 |
OB_Jn(I,bi,bj) = buf(I,sNy,bi,bj) |
| 481 |
OB_Js(I,bi,bj) = buf(I, 1,bi,bj) |
| 482 |
ENDDO |
| 483 |
ENDDO |
| 484 |
ENDDO |
| 485 |
#endif /* ALLOW_EXCH2 */ |
| 486 |
|
| 487 |
#endif /* ALLOW_OBCS */ |
| 488 |
RETURN |
| 489 |
END |
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