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jmc |
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C $Header: /u/gcmpack/MITgcm/pkg/generic_advdiff/gad_init_fixed.F,v 1.1 2007/01/10 23:51:36 jmc Exp $ |
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jmc |
1.1 |
C $Name: $ |
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#include "GAD_OPTIONS.h" |
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CBOP |
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C !ROUTINE: GAD_INIT_FIXED |
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C !INTERFACE: |
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SUBROUTINE GAD_INIT_FIXED( myThid ) |
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C !DESCRIPTION: |
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C Routine to initialize Generic Advection/Diffusion variables and |
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C constants. |
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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 "GAD.h" |
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C !INPUT/OUTPUT PARAMETERS: |
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C === Routine arguments === |
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C myThid - Number of this instance of GAD_INIT_FIXED |
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INTEGER myThid |
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CEOP |
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C === Local variables === |
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C msgBuf - Informational/error meesage buffer |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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INTEGER minOlSize |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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_BEGIN_MASTER(myThid) |
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jmc |
1.2 |
C-- Set Temp & Salt 2nd-Order Moment Advec. flag according to advection scheme |
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tempSOM_Advection = tempAdvScheme.GE.ENUM_SOM_PRATHER |
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& .AND. tempAdvScheme.LE.ENUM_SOM_LIMITER |
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tempSOM_Advection = tempSOM_Advection .AND. tempAdvection |
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saltSOM_Advection = saltAdvScheme.GE.ENUM_SOM_PRATHER |
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& .AND. saltAdvScheme.LE.ENUM_SOM_LIMITER |
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saltSOM_Advection = saltSOM_Advection .AND. saltAdvection |
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jmc |
1.1 |
C-- Set Temp & Salt multi-Dim Advec. flag according to advection scheme used |
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tempMultiDimAdvec = multiDimAdvection .AND. tempAdvection |
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saltMultiDimAdvec = multiDimAdvection .AND. saltAdvection |
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IF ( tempAdvScheme.EQ.ENUM_CENTERED_2ND |
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& .OR.tempAdvScheme.EQ.ENUM_UPWIND_3RD |
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& .OR.tempAdvScheme.EQ.ENUM_CENTERED_4TH ) THEN |
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tempMultiDimAdvec = .FALSE. |
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ENDIF |
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IF ( saltAdvScheme.EQ.ENUM_CENTERED_2ND |
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& .OR.saltAdvScheme.EQ.ENUM_UPWIND_3RD |
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& .OR.saltAdvScheme.EQ.ENUM_CENTERED_4TH ) THEN |
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saltMultiDimAdvec = .FALSE. |
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ENDIF |
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C-- Set general multi-Dim Advec. flag when at least 1 tracer use multi-Dim Advec. |
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useMultiDimAdvec = useMultiDimAdvec.OR.tempMultiDimAdvec |
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useMultiDimAdvec = useMultiDimAdvec.OR.saltMultiDimAdvec |
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C-- Set Temp & Salt Adams-Bashforth flag according to advection scheme used |
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AdamsBashforthGt = .FALSE. |
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AdamsBashforthGs = .FALSE. |
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AdamsBashforth_T = .FALSE. |
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AdamsBashforth_S = .FALSE. |
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IF ( tempAdvScheme.EQ.ENUM_CENTERED_2ND |
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& .OR.tempAdvScheme.EQ.ENUM_UPWIND_3RD |
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& .OR.tempAdvScheme.EQ.ENUM_CENTERED_4TH ) THEN |
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AdamsBashforthGt = tempStepping |
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ENDIF |
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IF ( saltAdvScheme.EQ.ENUM_CENTERED_2ND |
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& .OR.saltAdvScheme.EQ.ENUM_UPWIND_3RD |
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& .OR.saltAdvScheme.EQ.ENUM_CENTERED_4TH ) THEN |
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AdamsBashforthGs = saltStepping |
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ENDIF |
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#ifdef ALLOW_ADAMSBASHFORTH_3 |
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C- For now, A-B on T,S is only implemented in AB-3 code, and not working |
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C with synchronous time-step, which would require to do also AB(u,v,w) |
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IF ( .NOT.doAB_onGtGs .AND. |
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& (staggerTimeStep .OR. implicitIntGravWave) ) THEN |
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AdamsBashforth_T = AdamsBashforthGt |
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AdamsBashforth_S = AdamsBashforthGs |
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AdamsBashforthGt = .FALSE. |
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AdamsBashforthGs = .FALSE. |
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ENDIF |
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#endif /* ALLOW_ADAMSBASHFORTH_3 */ |
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C- Initialize AB starting flags for T & S: |
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C notes: those could be modified when reading a pickup that does |
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C correspond to what is actually needed. |
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tempStartAB = nIter0.EQ.0 |
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saltStartAB = nIter0.EQ.0 |
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_END_MASTER(myThid) |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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#ifdef ALLOW_DIAGNOSTICS |
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IF ( useDiagnostics ) THEN |
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C-- Add diagnostics of Temp & Salt fluxes to the (long) list of diagnostics: |
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CALL GAD_DIAGNOSTICS_INIT( myThid ) |
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ENDIF |
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#endif /* ALLOW_DIAGNOSTICS */ |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C-- Print out GAD parameters : |
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_BEGIN_MASTER(myThid) |
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WRITE(msgBuf,'(A)') ' ' |
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CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
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WRITE(msgBuf,'(A)') '// ===================================' |
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CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
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WRITE(msgBuf,'(A)')'// GAD parameters :' |
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CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
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WRITE(msgBuf,'(A)') '// ===================================' |
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CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
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CALL WRITE_0D_I( tempAdvScheme, INDEX_NONE, |
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& 'tempAdvScheme =', |
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& ' /* Temp. Horiz.Advection scheme selector */') |
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CALL WRITE_0D_I( tempVertAdvScheme, INDEX_NONE, |
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& 'tempVertAdvScheme =', |
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& ' /* Temp. Vert. Advection scheme selector */') |
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CALL WRITE_0D_L( tempMultiDimAdvec, INDEX_NONE, |
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& 'tempMultiDimAdvec =', |
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& ' /* use Muti-Dim Advec method for Temp */') |
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jmc |
1.2 |
CALL WRITE_0D_L( tempSOM_Advection, INDEX_NONE, |
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& 'tempSOM_Advection =', |
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& ' /* use 2nd Order Moment Advection for Temp */') |
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jmc |
1.1 |
CALL WRITE_0D_L( AdamsBashforthGt, INDEX_NONE, |
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& 'AdamsBashforthGt =', |
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jmc |
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& ' /* apply Adams-Bashforth extrapolation on Gt */') |
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jmc |
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CALL WRITE_0D_L( AdamsBashforth_T, INDEX_NONE, |
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& 'AdamsBashforth_T =', |
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jmc |
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& ' /* apply Adams-Bashforth extrapolation on Temp */') |
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jmc |
1.1 |
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CALL WRITE_0D_I( saltAdvScheme, INDEX_NONE, |
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& 'saltAdvScheme =', |
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& ' /* Salt. Horiz.advection scheme selector */') |
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CALL WRITE_0D_I( saltVertAdvScheme, INDEX_NONE, |
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& 'saltVertAdvScheme =', |
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& ' /* Salt. Vert. Advection scheme selector */') |
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CALL WRITE_0D_L( saltMultiDimAdvec, INDEX_NONE, |
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& 'saltMultiDimAdvec =', |
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& ' /* use Muti-Dim Advec method for Salt */') |
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jmc |
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CALL WRITE_0D_L( saltSOM_Advection, INDEX_NONE, |
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& 'saltSOM_Advection =', |
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& ' /* use 2nd Order Moment Advection for Salt */') |
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jmc |
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CALL WRITE_0D_L( AdamsBashforthGs, INDEX_NONE, |
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& 'AdamsBashforthGs =', |
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jmc |
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& ' /* apply Adams-Bashforth extrapolation on Gs */') |
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jmc |
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CALL WRITE_0D_L( AdamsBashforth_S, INDEX_NONE, |
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& 'AdamsBashforth_S =', |
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jmc |
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& ' /* apply Adams-Bashforth extrapolation on Salt */') |
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jmc |
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WRITE(msgBuf,'(A)') '// ===================================' |
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CALL PRINT_MESSAGE(msgBuf,standardMessageUnit,SQUEEZE_RIGHT,1) |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C-- Check size of the overlap : |
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IF ( useCubedSphereExchange .AND. useMultiDimAdvec ) THEN |
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C- multi-dim-advection on CS-grid requires to double the size of Olx,Oly |
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minOlSize = 2 |
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IF ( tempMultiDimAdvec ) THEN |
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IF ( tempAdvScheme.EQ.ENUM_FLUX_LIMIT .OR. |
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& tempAdvScheme.EQ.ENUM_DST3_FLUX_LIMIT .OR. |
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& tempAdvScheme.EQ.ENUM_DST3 ) minOlSize = 4 |
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ENDIF |
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IF ( saltMultiDimAdvec ) THEN |
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IF ( saltAdvScheme.EQ.ENUM_FLUX_LIMIT .OR. |
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& saltAdvScheme.EQ.ENUM_DST3_FLUX_LIMIT .OR. |
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& saltAdvScheme.EQ.ENUM_DST3 ) minOlSize = 4 |
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ENDIF |
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IF ( Olx.LT.minOlSize .OR. Oly.LT.minOlSize ) THEN |
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WRITE(msgBuf,'(A)') |
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& 'GAD_INIT_FIXED: Multi-Dim Advection with 5-points stencil' |
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CALL PRINT_ERROR( msgBuf , myThid) |
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WRITE(msgBuf,'(A,I2)') |
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& 'GAD_INIT_FIXED: advection scheme needs at least Olx,Oly=', |
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& minOlSize |
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CALL PRINT_ERROR( msgBuf , myThid) |
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STOP 'ABNORMAL END: S/R GAD_INIT_FIXED' |
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ENDIF |
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ENDIF |
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_END_MASTER(myThid) |
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_BARRIER |
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RETURN |
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END |
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