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dimitri |
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C $Header: /u/gcmpack/MITgcm_contrib/llc_hires/llc_4320/code-async/asyncio_init.F,v 1.1 2013/09/20 12:38:03 dimitri Exp $ |
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#include "CPP_EEOPTIONS.h" |
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SUBROUTINE ASYNCIO_INIT( |
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I mpiCommParent, |
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U mpiCommCompute ) |
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IMPLICIT NONE |
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#include "SIZE.h" |
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INTEGER mpiCommParent, mpiCommCompute |
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INTEGER mpiRC |
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INTEGER mpiCommIO |
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INTEGER mpiParentNP |
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INTEGER myParentRank |
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INTEGER mpiMyColor |
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INTEGER mpiComputeNP |
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INTEGER mpiIONP |
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INTEGER totalNumTiles |
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INTEGER numComputeProcesses |
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CALL MPI_COMM_SIZE(mpiCommParent, mpiParentNP, mpiRC ) |
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CALL MPI_COMM_RANK(mpiCommParent, myParentRank, mpiRC ) |
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C-- Hand control of I/O ranks to I/O library code. |
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C-- Get back communicator for compute ranks to use. |
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totalNumTiles = nPx*nPy*nSx*nSy |
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numComputeProcesses = nPx*nPy |
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IF ( myParentRank .EQ. 0 ) THEN |
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PRINT *, 'totalNumTiles ',totalNumTiles |
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PRINT *, 'numComputeProcesses ', numComputeProcesses |
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ENDIF |
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CALL ASYNCIO_BRON_F_F1(mpiCommParent, |
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I numComputeProcesses, |
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I totalNumTiles, |
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O mpiCommCompute) |
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RETURN |
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C-- ** MOST CODE FROM HERE IS PLACE HOLDER UNTIL WORKING |
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C-- ** BRON CODE EXISTS |
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C-- Distribute procs to "compute pool" and "I/O pool" |
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mpiCommIO = -1 |
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mpiCommCompute = -1 |
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! mpiComputeNP = mpiParentNP*3/4 |
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mpiComputeNP = npx*npy |
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mpiIONP = mpiParentNP-mpiComputeNP |
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IF ( myParentRank .GE. mpiComputeNP ) THEN |
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mpiMyColor=1 |
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ELSE |
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mpiMyColor=2 |
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ENDIF |
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IF ( mpiMyColor .EQ. 1 ) THEN |
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CALL MPI_COMM_SPLIT(mpiCommParent, mpiMyColor, 0, mpiCommIO, |
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& mpiRC ) |
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ELSE |
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CALL MPI_COMM_SPLIT(mpiCommParent, mpiMyColor, 0, mpiCommCompute, |
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& mpiRC) |
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ENDIF |
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IF ( mpiCommIO .NE. -1 ) THEN |
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CALL ASYNCIO_DRIVER_INIT( |
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I mpiCommIO, mpiCommParent, |
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I sNx, sNy, Nr, OLx, OLy |
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I ) |
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C-- ** WILL NEED SOMETHING LIKE THESE THREE LINES EVEN |
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C-- ** AFTER BRON CODE |
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CALL MPI_BARRIER(mpiCommParent,mpiRC) |
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CALL MPI_FINALIZE(mpiRC) |
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STOP 'NORMAL END: ASYNC IO PROCS' |
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ENDIF |
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RETURN |
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END |
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