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C $Header: /u/gcmpack/MITgcm/pkg/flt/exch_recv_get_vec.F,v 1.2 2007/10/09 00:04:53 jmc Exp $ |
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C $Name: $ |
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|
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#include "CPP_OPTIONS.h" |
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|
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C-- Contents |
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C-- o EXCH_RL_RECV_GET_VEC_X |
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C-- o EXCH_RL_RECV_GET_VEC_Y |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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SUBROUTINE EXCH_RL_RECV_GET_VEC_X( arrayE, arrayW, |
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I myd1, myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE RECV_RL_GET_X | |
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C | o "Send" or "put" X edges for RL array. | |
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C |==========================================================| |
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C | Routine that invokes actual message passing send or | |
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C | direct "put" of data to update X faces of an XY[R] array.| |
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C \==========================================================/ |
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IMPLICIT NONE |
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|
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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 "EESUPPORT.h" |
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#include "FLT.h" |
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#include "EXCH.h" |
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|
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C == Routine arguments == |
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C arrayE - Arrays to exchange be exchanged. |
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C arrayW |
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C myd1 - sizes. |
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C theSimulationMode - Forward or reverse mode exchange ( provides |
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C support for adjoint integration of code. ) |
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C myThid - Thread number of this instance of S/R EXCH... |
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C eBl - Edge buffer level |
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INTEGER myd1 |
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_RL arrayE(myd1, nSx, nSy), arrayW(myd1, nSx, nSy) |
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INTEGER myThid |
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CEndOfInterface |
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|
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C == Local variables == |
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C I, J - Loop counters and extents |
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C bi, bj |
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C biW, bjW - West tile indices |
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C biE, bjE - East tile indices |
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C theProc, theTag, theType, - Variables used in message building |
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C theSize |
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C westCommMode - Working variables holding type |
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C eastCommMode of communication a particular |
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C tile face uses. |
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INTEGER I |
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INTEGER bi, bj, biW, bjW, biE, bjE |
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INTEGER westCommMode |
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INTEGER eastCommMode |
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INTEGER spinCount |
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#ifdef ALLOW_USE_MPI |
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INTEGER theProc, theTag, theType, theSize |
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INTEGER mpiStatus(MPI_STATUS_SIZE,4), mpiRc |
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#endif |
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|
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|
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C-- Under a "put" scenario we |
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C-- i. set completetion signal for buffer we put into. |
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C-- ii. wait for completetion signal indicating data has been put in |
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C-- our buffer. |
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C-- Under a messaging mode we "receive" the message. |
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C-- Under a "get" scenario we |
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C-- i. Check that the data is ready. |
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C-- ii. Read the data. |
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C-- iii. Set data read flag + memory sync. |
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|
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|
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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westCommMode = _tileCommModeW(bi,bj) |
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eastCommMode = _tileCommModeE(bi,bj) |
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biE = _tileBiE(bi,bj) |
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bjE = _tileBjE(bi,bj) |
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biW = _tileBiW(bi,bj) |
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bjW = _tileBjW(bi,bj) |
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IF ( westCommMode .EQ. COMM_MSG ) THEN |
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#ifdef ALLOW_USE_MPI |
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#ifndef ALWAYS_USE_MPI |
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IF ( usingMPI ) THEN |
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#endif |
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theProc = tilePidW(bi,bj) |
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theTag = _tileTagRecvW(bi,bj) |
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theType = MPI_DOUBLE_PRECISION |
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theSize = myd1 |
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CALL MPI_Recv( arrayW(1,bi,bj), theSize, theType, |
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& theProc, theTag, MPI_COMM_MODEL, |
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& mpiStatus, mpiRc ) |
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c if (theProc .eq. 0 .or. theProc .eq. 2) then |
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c if (arrayW(1,bi,bj) .ne. 0.) then |
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c write(errormessageunit,*) 'qq2y: ',myprocid, |
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c & theProc,theTag,theSize,(arrayW(i,bi,bj),i=1,32) |
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c else |
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c write(errormessageunit,*) 'qq2n: ',myprocid, |
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c & theProc,theTag,theSize,(arrayW(i,bi,bj),i=1,32) |
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c endif |
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c endif |
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#ifndef ALWAYS_USE_MPI |
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ENDIF |
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#endif |
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#endif /* ALLOW_USE_MPI */ |
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ENDIF |
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IF ( eastCommMode .EQ. COMM_MSG ) THEN |
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#ifdef ALLOW_USE_MPI |
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#ifndef ALWAYS_USE_MPI |
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IF ( usingMPI ) THEN |
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#endif |
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theProc = tilePidE(bi,bj) |
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theTag = _tileTagRecvE(bi,bj) |
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theType = MPI_DOUBLE_PRECISION |
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theSize = myd1 |
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CALL MPI_Recv( arrayE(1,bi,bj), theSize, theType, |
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& theProc, theTag, MPI_COMM_MODEL, |
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& mpiStatus, mpiRc ) |
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#ifndef ALWAYS_USE_MPI |
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ENDIF |
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#endif |
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#endif /* ALLOW_USE_MPI */ |
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ENDIF |
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ENDDO |
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ENDDO |
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|
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C-- Wait for buffers I am going read to be ready. |
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IF ( exchUsesBarrier ) THEN |
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C o On some machines ( T90 ) use system barrier rather than spinning. |
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CALL BARRIER( myThid ) |
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ELSE |
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C o Spin waiting for completetion flag. This avoids a global-lock |
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C i.e. we only lock waiting for data that we need. |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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spinCount = 0 |
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westCommMode = _tileCommModeW(bi,bj) |
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eastCommMode = _tileCommModeE(bi,bj) |
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10 CONTINUE |
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CALL FOOL_THE_COMPILER |
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spinCount = spinCount+1 |
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C IF ( myThid .EQ. 1 .AND. spinCount .GT. _EXCH_SPIN_LIMIT ) THEN |
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C WRITE(0,*) ' eBl = ', ebl |
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C STOP ' S/R EXCH_RECV_GET_X: spinCount .GT. _EXCH_SPIN_LIMIT' |
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C ENDIF |
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IF ( westRecvAck(1,bi,bj) .EQ. 0. ) GOTO 10 |
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IF ( eastRecvAck(1,bi,bj) .EQ. 0. ) GOTO 10 |
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C Clear outstanding requests |
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westRecvAck(1,bi,bj) = 0. |
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eastRecvAck(1,bi,bj) = 0. |
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|
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c IF ( exchVReqsX(1,bi,bj) .GT. 0 ) THEN |
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IF ( exchNReqsX(1,bi,bj) .GT. 0 ) THEN |
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#ifdef ALLOW_USE_MPI |
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#ifndef ALWAYS_USE_MPI |
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IF ( usingMPI ) THEN |
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#endif |
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c CALL MPI_Waitall( exchVReqsX(1,bi,bj), exchReqVIdX(1,1,bi,bj), |
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CALL MPI_Waitall( exchNReqsX(1,bi,bj), exchReqIdX(1,1,bi,bj), |
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& mpiStatus, mpiRC ) |
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#ifndef ALWAYS_USE_MPI |
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ENDIF |
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#endif |
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#endif /* ALLOW_USE_MPI */ |
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ENDIF |
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C Clear outstanding requests counter |
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c exchVReqsX(1,bi,bj) = 0 |
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exchNReqsX(1,bi,bj) = 0 |
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C Update statistics |
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ENDDO |
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ENDDO |
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ENDIF |
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|
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C-- Read from the buffers |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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|
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biE = _tileBiE(bi,bj) |
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bjE = _tileBjE(bi,bj) |
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biW = _tileBiW(bi,bj) |
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bjW = _tileBjW(bi,bj) |
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westCommMode = _tileCommModeW(bi,bj) |
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eastCommMode = _tileCommModeE(bi,bj) |
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IF ( eastCommMode .EQ. COMM_GET ) THEN |
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DO I=1,myd1 |
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arrayE(I,bi,bj) = arrayW(I,biE,bjE) |
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ENDDO |
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ENDIF |
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IF ( westCommMode .EQ. COMM_GET ) THEN |
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DO I=1,myd1 |
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arrayW(I,bi,bj) = arrayE(I,biW,bjW) |
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ENDDO |
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ENDIF |
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|
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ENDDO |
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ENDDO |
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|
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RETURN |
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END |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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SUBROUTINE EXCH_RL_RECV_GET_VEC_Y( arrayN, arrayS, |
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I myd1, myThid ) |
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C /==========================================================\ |
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C | SUBROUTINE RECV_RL_GET_Y | |
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C | o "Send" or "put" Y edges for RL array. | |
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C |==========================================================| |
| 211 |
C | Routine that invokes actual message passing send or | |
| 212 |
C | direct "put" of data to update Y faces of an XY[R] array.| |
| 213 |
C \==========================================================/ |
| 214 |
IMPLICIT NONE |
| 215 |
|
| 216 |
C == Global variables == |
| 217 |
#include "SIZE.h" |
| 218 |
#include "EEPARAMS.h" |
| 219 |
#include "EESUPPORT.h" |
| 220 |
#include "FLT.h" |
| 221 |
#include "EXCH.h" |
| 222 |
|
| 223 |
C == Routine arguments == |
| 224 |
C arrayN - Arrays to exchange be exchanged. |
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C arrayS |
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C myd1 - sizes. |
| 227 |
C theSimulationMode - Forward or reverse mode exchange ( provides |
| 228 |
C support for adjoint integration of code. ) |
| 229 |
C myThid - Thread number of this instance of S/R EXCH... |
| 230 |
INTEGER myd1 |
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_RL arrayN(myd1, nSx, nSy), arrayS(myd1, nSx, nSy) |
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INTEGER myThid |
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CEndOfInterface |
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|
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C == Local variables == |
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C I, J - Loop counters and extents |
| 237 |
C bi, bj |
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C biS, bjS - South tile indices |
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C biE, bjE - North tile indices |
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C theProc, theTag, theType, - Variables used in message building |
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C theSize |
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C southCommMode - Working variables holding type |
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C northCommMode of communication a particular |
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C tile face uses. |
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INTEGER I |
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INTEGER bi, bj, biS, bjS, biN, bjN |
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INTEGER southCommMode |
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INTEGER northCommMode |
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INTEGER spinCount |
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#ifdef ALLOW_USE_MPI |
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INTEGER theProc, theTag, theType, theSize |
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INTEGER mpiStatus(MPI_STATUS_SIZE,4), mpiRc |
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#endif |
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|
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|
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C-- Under a "put" scenario we |
| 257 |
C-- i. set completetion signal for buffer we put into. |
| 258 |
C-- ii. wait for completetion signal indicating data has been put in |
| 259 |
C-- our buffer. |
| 260 |
C-- Under a messaging mode we "receive" the message. |
| 261 |
C-- Under a "get" scenario we |
| 262 |
C-- i. Check that the data is ready. |
| 263 |
C-- ii. Read the data. |
| 264 |
C-- iii. Set data read flag + memory sync. |
| 265 |
|
| 266 |
|
| 267 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 268 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
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southCommMode = _tileCommModeS(bi,bj) |
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northCommMode = _tileCommModeN(bi,bj) |
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biN = _tileBiN(bi,bj) |
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bjN = _tileBjN(bi,bj) |
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biS = _tileBiS(bi,bj) |
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bjS = _tileBjS(bi,bj) |
| 275 |
IF ( southCommMode .EQ. COMM_MSG ) THEN |
| 276 |
#ifdef ALLOW_USE_MPI |
| 277 |
#ifndef ALWAYS_USE_MPI |
| 278 |
IF ( usingMPI ) THEN |
| 279 |
#endif |
| 280 |
theProc = tilePidS(bi,bj) |
| 281 |
theTag = _tileTagRecvS(bi,bj) |
| 282 |
theType = MPI_DOUBLE_PRECISION |
| 283 |
theSize = myd1 |
| 284 |
CALL MPI_Recv( arrayS(1,bi,bj), theSize, theType, |
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& theProc, theTag, MPI_COMM_MODEL, |
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& mpiStatus, mpiRc ) |
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#ifndef ALWAYS_USE_MPI |
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ENDIF |
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#endif |
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#endif /* ALLOW_USE_MPI */ |
| 291 |
ENDIF |
| 292 |
IF ( northCommMode .EQ. COMM_MSG ) THEN |
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#ifdef ALLOW_USE_MPI |
| 294 |
#ifndef ALWAYS_USE_MPI |
| 295 |
IF ( usingMPI ) THEN |
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#endif |
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theProc = tilePidN(bi,bj) |
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theTag = _tileTagRecvN(bi,bj) |
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theType = MPI_DOUBLE_PRECISION |
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theSize = myd1 |
| 301 |
CALL MPI_Recv( arrayN(1,bi,bj), theSize, theType, |
| 302 |
& theProc, theTag, MPI_COMM_MODEL, |
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& mpiStatus, mpiRc ) |
| 304 |
#ifndef ALWAYS_USE_MPI |
| 305 |
ENDIF |
| 306 |
#endif |
| 307 |
#endif /* ALLOW_USE_MPI */ |
| 308 |
ENDIF |
| 309 |
ENDDO |
| 310 |
ENDDO |
| 311 |
|
| 312 |
C-- Wait for buffers I am going read to be ready. |
| 313 |
IF ( exchUsesBarrier ) THEN |
| 314 |
C o On some machines ( T90 ) use system barrier rather than spinning. |
| 315 |
CALL BARRIER( myThid ) |
| 316 |
ELSE |
| 317 |
C o Spin waiting for completetion flag. This avoids a global-lock |
| 318 |
C i.e. we only lock waiting for data that we need. |
| 319 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 320 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 321 |
spinCount = 0 |
| 322 |
southCommMode = _tileCommModeS(bi,bj) |
| 323 |
northCommMode = _tileCommModeN(bi,bj) |
| 324 |
10 CONTINUE |
| 325 |
CALL FOOL_THE_COMPILER |
| 326 |
spinCount = spinCount+1 |
| 327 |
C IF ( myThid .EQ. 1 .AND. spinCount .GT. _EXCH_SPIN_LIMIT ) THEN |
| 328 |
C WRITE(0,*) ' eBl = ', ebl |
| 329 |
C STOP ' S/R EXCH_RECV_GET_X: spinCount .GT. _EXCH_SPIN_LIMIT' |
| 330 |
C ENDIF |
| 331 |
IF ( southRecvAck(1,bi,bj) .EQ. 0. ) GOTO 10 |
| 332 |
IF ( northRecvAck(1,bi,bj) .EQ. 0. ) GOTO 10 |
| 333 |
C Clear outstanding requests |
| 334 |
southRecvAck(1,bi,bj) = 0. |
| 335 |
northRecvAck(1,bi,bj) = 0. |
| 336 |
|
| 337 |
c IF ( exchVReqsY(1,bi,bj) .GT. 0 ) THEN |
| 338 |
IF ( exchNReqsY(1,bi,bj) .GT. 0 ) THEN |
| 339 |
#ifdef ALLOW_USE_MPI |
| 340 |
#ifndef ALWAYS_USE_MPI |
| 341 |
IF ( usingMPI ) THEN |
| 342 |
#endif |
| 343 |
c CALL MPI_Waitall( exchVReqsY(1,bi,bj), exchReqVIdY(1,1,bi,bj), |
| 344 |
CALL MPI_Waitall( exchNReqsY(1,bi,bj), exchReqIdY(1,1,bi,bj), |
| 345 |
& mpiStatus, mpiRC ) |
| 346 |
#ifndef ALWAYS_USE_MPI |
| 347 |
ENDIF |
| 348 |
#endif |
| 349 |
#endif /* ALLOW_USE_MPI */ |
| 350 |
ENDIF |
| 351 |
C Clear outstanding requests counter |
| 352 |
c exchVReqsY(1,bi,bj) = 0 |
| 353 |
exchNReqsY(1,bi,bj) = 0 |
| 354 |
C Update statistics |
| 355 |
ENDDO |
| 356 |
ENDDO |
| 357 |
ENDIF |
| 358 |
|
| 359 |
C-- Read from the buffers |
| 360 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 361 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 362 |
|
| 363 |
biN = _tileBiN(bi,bj) |
| 364 |
bjN = _tileBjN(bi,bj) |
| 365 |
biS = _tileBiS(bi,bj) |
| 366 |
bjS = _tileBjS(bi,bj) |
| 367 |
southCommMode = _tileCommModeS(bi,bj) |
| 368 |
northCommMode = _tileCommModeN(bi,bj) |
| 369 |
IF ( southCommMode .EQ. COMM_GET ) THEN |
| 370 |
DO I=1,myd1 |
| 371 |
arrayN(I,bi,bj) = arrayS(I,biN,bjN) |
| 372 |
ENDDO |
| 373 |
ENDIF |
| 374 |
IF ( southCommMode .EQ. COMM_GET ) THEN |
| 375 |
DO I=1,myd1 |
| 376 |
arrayS(I,bi,bj) = arrayN(I,biS,bjS) |
| 377 |
ENDDO |
| 378 |
ENDIF |
| 379 |
|
| 380 |
ENDDO |
| 381 |
ENDDO |
| 382 |
|
| 383 |
RETURN |
| 384 |
END |
| 385 |
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