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C $Header: /u/gcmpack/MITgcm/eesupp/src/eeboot_minimal.F,v 1.18 2009/11/24 00:16:33 jmc Exp $ |
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C $Name: $ |
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#include "NEST_PARENT_OPTIONS.h" |
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CBOP |
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C !ROUTINE: NEST_EEINIT |
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C !INTERFACE: |
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SUBROUTINE NEST_EEINIT( |
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I mpiMyWid, |
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O color ) |
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C !DESCRIPTION: |
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C *==========================================================* |
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C | SUBROUTINE NEST\_EEINIT |
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C | o Set Nesting Execution Environment |
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C *==========================================================* |
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C | This is the NEST_PARENT version |
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C *==========================================================* |
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C !USES: |
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IMPLICIT NONE |
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C == Global data == |
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "EESUPPORT.h" |
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#include "NEST_PARENT_PARAMS.h" |
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C !INPUT PARAMETERS: |
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C mpiMyWid :: my World MPI rank |
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INTEGER mpiMyWid |
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C !OUTPUT PARAMETERS: |
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C color :: type of group I belong to |
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INTEGER color |
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#ifdef ALLOW_USE_MPI |
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C !LOCAL VARIABLES: |
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C mpiRC :: Error code reporting variable used with MPI. |
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C msgBuf :: Used to build messages for printing. |
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c CHARACTER*(MAX_LEN_MBUF) msgBuf |
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INTEGER mpiRC |
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INTEGER size, npd |
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INTEGER Count_Lev |
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CEOP |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CALL MPI_COMM_SIZE( MPI_COMM_WORLD, size, mpiRC ) |
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npd=size-(NCPUs_PAR_P+NCPUs_CLD_P(1)) |
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MSTR_DRV_P(1) = 0 |
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MSTR_PAR_P(1) = npd |
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MSTR_CLD_P(1) = NCPUs_PAR_P + npd |
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DO Count_Lev = 2, NST_LEV_TOT_P |
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MSTR_DRV_P(Count_Lev) = MSTR_PAR_P(Count_Lev-1) |
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& + NCPUs_CLD_P(Count_Lev-1) |
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MSTR_CLD_P(Count_Lev) = MSTR_DRV_P(Count_Lev) + 1 |
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MSTR_PAR_P(Count_Lev) = MSTR_CLD_P(Count_Lev-1) |
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ENDDO |
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color=9999999 |
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IF (NST_LEV_P.EQ.1) THEN |
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IF (mpiMyWId.GE.MSTR_PAR_P(1).AND. |
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& mpiMyWId.LT.MSTR_CLD_P(1)) color = 1 |
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IF (mpiMyWId.GE.MSTR_CLD_P(1)) color = 2 |
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ENDIF |
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IF (NST_LEV_P.GT.1) THEN |
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IF (mpiMyWId.GE.MSTR_CLD_P(NST_LEV_P).AND. |
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& mpiMyWId.LT.MSTR_CLD_P(NST_LEV_P)+NCPUs_CLD_P(NST_LEV_P)) |
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& color = (NST_LEV_P + 1) |
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ENDIF |
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C-- split per group of same color ? |
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CALL MPI_COMM_SPLIT ( MPI_COMM_WORLD, color, 0, |
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& MPI_COMM_MODEL, mpiRC ) |
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IF ( mpiRC .NE. MPI_SUCCESS ) THEN |
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write(*,*) 'error SPLIT' |
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ENDIF |
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#else /* ALLOW_USE_MPI */ |
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STOP 'ABNORMAL END: S/R NEST_EEINIT: Needs to Use MPI' |
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#endif /* ALLOW_USE_MPI */ |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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RETURN |
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END |
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