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C $Header: /u/gcmpack/MITgcm/pkg/flt/exch_recv_get_vec.F,v 1.6 2009/03/26 22:21:11 cnh Exp $ |
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C $Name: $ |
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|
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#include "CPP_EEOPTIONS.h" |
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#undef DBUG_EXCH_VEC |
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|
| 7 |
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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CBOP 0 |
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C !ROUTINE: EXCH_RL_RECV_GET_VEC_X |
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|
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C !INTERFACE: |
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SUBROUTINE EXCH_RL_RECV_GET_VEC_X( |
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U arrayE, arrayW, |
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I myd1, myThid ) |
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C !DESCRIPTION: |
| 20 |
C *==========================================================* |
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C | SUBROUTINE EXCH_RL_RECV_GET_VEC_X |
| 22 |
C | o "Receive" or "Get" X edges for RL array. |
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C *==========================================================* |
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C | Routine that invokes actual message passing receive |
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C | of data to update buffer in X direction |
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C *==========================================================* |
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|
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C !USES: |
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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 "EXCH.h" |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C arrayE :: buffer array to collect Eastern Neighbour values |
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C arrayW :: buffer array to collect Western Neighbour values |
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C myd1 :: size |
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C myThid :: my Thread Id. number |
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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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CEOP |
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|
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C !LOCAL VARIABLES: |
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C bi, bj :: tile indices |
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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 :: Variables used in message building |
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C theTag :: Variables used in message building |
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C theType :: Variables used in message building |
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C theSize :: Variables used in message building |
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C westCommMode :: variables holding type of communication |
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C eastCommMode :: a particular tile face uses. |
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INTEGER bi, bj |
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c INTEGER 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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INTEGER ioUnit |
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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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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 <= not implemented, 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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ioUnit = errorMessageUnit |
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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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#ifdef DBUG_EXCH_VEC |
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write(ioUnit,'(A,5I6)') 'RECV_X,0 :',myProcId,bi,bj |
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#endif |
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c biE = _tileBiE(bi,bj) |
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c bjE = _tileBjE(bi,bj) |
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c biW = _tileBiW(bi,bj) |
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c 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_TYPE_RL |
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theSize = myd1 |
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#ifdef DBUG_EXCH_VEC |
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write(ioUnit,'(A,5I5,I8)') 'qq2xW: ',myProcId,bi,bj, |
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& theProc,theTag,theSize |
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#endif |
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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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#ifdef DBUG_EXCH_VEC |
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write(ioUnit,'(A,5I6)') 'RECV_X,1 :',myProcId,bi,bj |
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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_TYPE_RL |
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theSize = myd1 |
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#ifdef DBUG_EXCH_VEC |
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write(ioUnit,'(A,5I5,I8)') 'qq2xE: ',myProcId,bi,bj, |
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& theProc,theTag,theSize |
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#endif |
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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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#ifdef DBUG_EXCH_VEC |
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write(ioUnit,'(A,5I6)') 'RECV_X,2 :',myProcId,bi,bj |
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#endif |
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ENDDO |
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ENDDO |
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#ifdef DBUG_EXCH_VEC |
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write(ioUnit,'(A,5I6,I12)') 'RECV_X:',myProcId |
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#endif |
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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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#ifdef DBUG_EXCH_VEC |
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write(ioUnit,'(A,5I6,I12)') 'spin:', myProcId,bi,bj, |
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& westRecvAck(1,bi,bj), eastRecvAck(1,bi,bj), spinCount |
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#endif |
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10 CONTINUE |
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CALL FOOL_THE_COMPILER( spinCount ) |
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spinCount = spinCount+1 |
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#ifdef DBUG_EXCH_VEC |
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write(ioUnit,'(A,5I6,I12)') 'spin:', myProcId,bi,bj, |
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& westRecvAck(1,bi,bj), eastRecvAck(1,bi,bj), spinCount |
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IF ( myThid.EQ.1 .AND. spinCount.GT. _EXCH_SPIN_LIMIT ) THEN |
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STOP ' S/R EXCH_RECV_GET_X: spinCount > _EXCH_SPIN_LIMIT' |
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ENDIF |
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#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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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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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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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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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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CBOP 0 |
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C !ROUTINE: EXCH_RL_RECV_GET_VEC_Y |
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|
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C !INTERFACE: |
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SUBROUTINE EXCH_RL_RECV_GET_VEC_Y( |
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U arrayN, arrayS, |
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I myd1, myThid ) |
| 216 |
C !DESCRIPTION: |
| 217 |
C *==========================================================* |
| 218 |
C | SUBROUTINE EXCH_RL_RECV_GET_VEC_Y |
| 219 |
C | o "Receive" or "Get" Y edges for RL array. |
| 220 |
C *==========================================================* |
| 221 |
C | Routine that invokes actual message passing receive |
| 222 |
C | of data to update buffer in Y direction |
| 223 |
C *==========================================================* |
| 224 |
|
| 225 |
C !USES: |
| 226 |
IMPLICIT NONE |
| 227 |
|
| 228 |
C == Global variables == |
| 229 |
#include "SIZE.h" |
| 230 |
#include "EEPARAMS.h" |
| 231 |
#include "EESUPPORT.h" |
| 232 |
#include "EXCH.h" |
| 233 |
|
| 234 |
C !INPUT/OUTPUT PARAMETERS: |
| 235 |
C arrayN :: buffer array to collect Northern Neighbour values |
| 236 |
C arrayS :: buffer array to collect Southern Neighbour values |
| 237 |
C myd1 :: size |
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C myThid :: my Thread Id. number |
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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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CEOP |
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|
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C !LOCAL VARIABLES: |
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C bi, bj :: tile indices |
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C biS, bjS :: South tile indices |
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C biN, bjN :: North tile indices |
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C theProc :: Variables used in message building |
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C theTag :: Variables used in message building |
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C theType :: Variables used in message building |
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C theSize :: Variables used in message building |
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C southCommMode :: variables holding type of communication |
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C northCommMode :: a particular tile face uses. |
| 254 |
INTEGER bi, bj |
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c INTEGER 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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INTEGER ioUnit |
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#ifdef ALLOW_USE_MPI |
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INTEGER theProc, theTag, theType, theSize |
| 262 |
INTEGER mpiStatus(MPI_STATUS_SIZE,4), mpiRc |
| 263 |
#endif |
| 264 |
|
| 265 |
C-- Under a "put" scenario we |
| 266 |
C-- i. set completetion signal for buffer we put into. |
| 267 |
C-- ii. wait for completetion signal indicating data has been put in |
| 268 |
C-- our buffer. |
| 269 |
C-- Under a messaging mode we "receive" the message. |
| 270 |
C-- Under a "get" scenario <= not implemented, we |
| 271 |
C-- i. Check that the data is ready. |
| 272 |
C-- ii. Read the data. |
| 273 |
C-- iii. Set data read flag + memory sync. |
| 274 |
|
| 275 |
ioUnit = errorMessageUnit |
| 276 |
|
| 277 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 278 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 279 |
southCommMode = _tileCommModeS(bi,bj) |
| 280 |
northCommMode = _tileCommModeN(bi,bj) |
| 281 |
#ifdef DBUG_EXCH_VEC |
| 282 |
write(ioUnit,'(A,5I6)') 'RECV_Y,0 :',myProcId,bi,bj |
| 283 |
#endif |
| 284 |
c biN = _tileBiN(bi,bj) |
| 285 |
c bjN = _tileBjN(bi,bj) |
| 286 |
c biS = _tileBiS(bi,bj) |
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c bjS = _tileBjS(bi,bj) |
| 288 |
IF ( southCommMode .EQ. COMM_MSG ) THEN |
| 289 |
#ifdef ALLOW_USE_MPI |
| 290 |
#ifndef ALWAYS_USE_MPI |
| 291 |
IF ( usingMPI ) THEN |
| 292 |
#endif |
| 293 |
theProc = tilePidS(bi,bj) |
| 294 |
theTag = _tileTagRecvS(bi,bj) |
| 295 |
theType = _MPI_TYPE_RL |
| 296 |
theSize = myd1 |
| 297 |
CALL MPI_Recv( arrayS(1,bi,bj), theSize, theType, |
| 298 |
& theProc, theTag, MPI_COMM_MODEL, |
| 299 |
& mpiStatus, mpiRc ) |
| 300 |
#ifndef ALWAYS_USE_MPI |
| 301 |
ENDIF |
| 302 |
#endif |
| 303 |
#endif /* ALLOW_USE_MPI */ |
| 304 |
ENDIF |
| 305 |
#ifdef DBUG_EXCH_VEC |
| 306 |
write(ioUnit,'(A,5I6)') 'RECV_Y,1 :',myProcId,bi,bj |
| 307 |
#endif |
| 308 |
IF ( northCommMode .EQ. COMM_MSG ) THEN |
| 309 |
#ifdef ALLOW_USE_MPI |
| 310 |
#ifndef ALWAYS_USE_MPI |
| 311 |
IF ( usingMPI ) THEN |
| 312 |
#endif |
| 313 |
theProc = tilePidN(bi,bj) |
| 314 |
theTag = _tileTagRecvN(bi,bj) |
| 315 |
theType = _MPI_TYPE_RL |
| 316 |
theSize = myd1 |
| 317 |
CALL MPI_Recv( arrayN(1,bi,bj), theSize, theType, |
| 318 |
& theProc, theTag, MPI_COMM_MODEL, |
| 319 |
& mpiStatus, mpiRc ) |
| 320 |
#ifndef ALWAYS_USE_MPI |
| 321 |
ENDIF |
| 322 |
#endif |
| 323 |
#endif /* ALLOW_USE_MPI */ |
| 324 |
ENDIF |
| 325 |
#ifdef DBUG_EXCH_VEC |
| 326 |
write(ioUnit,'(A,5I6)') 'RECV_Y,2 :',myProcId,bi,bj |
| 327 |
#endif |
| 328 |
ENDDO |
| 329 |
ENDDO |
| 330 |
#ifdef DBUG_EXCH_VEC |
| 331 |
write(ioUnit,'(A,5I6,I12)') 'RECV_Y:',myProcId |
| 332 |
#endif |
| 333 |
|
| 334 |
C-- Wait for buffers I am going read to be ready. |
| 335 |
IF ( exchUsesBarrier ) THEN |
| 336 |
C o On some machines ( T90 ) use system barrier rather than spinning. |
| 337 |
CALL BARRIER( myThid ) |
| 338 |
ELSE |
| 339 |
C o Spin waiting for completetion flag. This avoids a global-lock |
| 340 |
C i.e. we only lock waiting for data that we need. |
| 341 |
DO bj=myByLo(myThid),myByHi(myThid) |
| 342 |
DO bi=myBxLo(myThid),myBxHi(myThid) |
| 343 |
spinCount = 0 |
| 344 |
southCommMode = _tileCommModeS(bi,bj) |
| 345 |
northCommMode = _tileCommModeN(bi,bj) |
| 346 |
#ifdef DBUG_EXCH_VEC |
| 347 |
write(ioUnit,'(A,5I6,I12)') 'spin:', myProcId,bi,bj, |
| 348 |
& southRecvAck(1,bi,bj), northRecvAck(1,bi,bj), spinCount |
| 349 |
#endif |
| 350 |
10 CONTINUE |
| 351 |
CALL FOOL_THE_COMPILER( spinCount ) |
| 352 |
spinCount = spinCount+1 |
| 353 |
#ifdef DBUG_EXCH_VEC |
| 354 |
write(ioUnit,'(A,5I6,I12)') 'spin:', myProcId,bi,bj, |
| 355 |
& southRecvAck(1,bi,bj), northRecvAck(1,bi,bj), spinCount |
| 356 |
IF ( myThid.EQ.1 .AND. spinCount.GT. _EXCH_SPIN_LIMIT ) THEN |
| 357 |
STOP ' S/R EXCH_RECV_GET_X: spinCount > _EXCH_SPIN_LIMIT' |
| 358 |
ENDIF |
| 359 |
#endif |
| 360 |
IF ( southRecvAck(1,bi,bj) .EQ. 0 ) GOTO 10 |
| 361 |
IF ( northRecvAck(1,bi,bj) .EQ. 0 ) GOTO 10 |
| 362 |
C Clear outstanding requests |
| 363 |
southRecvAck(1,bi,bj) = 0 |
| 364 |
northRecvAck(1,bi,bj) = 0 |
| 365 |
|
| 366 |
IF ( exchNReqsY(1,bi,bj) .GT. 0 ) THEN |
| 367 |
#ifdef ALLOW_USE_MPI |
| 368 |
#ifndef ALWAYS_USE_MPI |
| 369 |
IF ( usingMPI ) THEN |
| 370 |
#endif |
| 371 |
CALL MPI_Waitall( exchNReqsY(1,bi,bj), exchReqIdY(1,1,bi,bj), |
| 372 |
& mpiStatus, mpiRC ) |
| 373 |
#ifndef ALWAYS_USE_MPI |
| 374 |
ENDIF |
| 375 |
#endif |
| 376 |
#endif /* ALLOW_USE_MPI */ |
| 377 |
ENDIF |
| 378 |
C Clear outstanding requests counter |
| 379 |
exchNReqsY(1,bi,bj) = 0 |
| 380 |
C Update statistics |
| 381 |
ENDDO |
| 382 |
ENDDO |
| 383 |
ENDIF |
| 384 |
|
| 385 |
RETURN |
| 386 |
END |
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