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utke |
1.12 |
C $Header: /u/gcmpack/MITgcm/eesupp/src/exch_rx_send_put_x.template,v 1.11 2008/04/09 22:33:42 utke Exp $ |
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cnh |
1.2 |
C $Name: $ |
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adcroft |
1.1 |
#include "CPP_EEOPTIONS.h" |
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cnh |
1.2 |
CBOP |
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C !ROUTINE: EXCH_RX_SEND_PUT_X |
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C !INTERFACE: |
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adcroft |
1.1 |
SUBROUTINE EXCH_RX_SEND_PUT_X( array, |
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I myOLw, myOLe, myOLs, myOLn, myNz, |
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I exchWidthX, exchWidthY, |
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I thesimulationMode, thecornerMode, myThid ) |
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IMPLICIT NONE |
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cnh |
1.2 |
C !DESCRIPTION: |
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C *==========================================================* |
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C | SUBROUTINE EXCH_RX_SEND_PUT_X |
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C | o "Send" or "put" X edges for RX 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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1.1 |
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1.2 |
C !USES: |
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1.1 |
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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1.2 |
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C !INPUT/OUTPUT PARAMETERS: |
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1.1 |
C == Routine arguments == |
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1.2 |
C array :: Array with edges to exchange. |
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C myOLw :: West, East, North and South overlap region sizes. |
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1.1 |
C myOLe |
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C myOLn |
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C myOLs |
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cnh |
1.2 |
C exchWidthX :: Width of data region exchanged. |
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adcroft |
1.1 |
C exchWidthY |
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cnh |
1.2 |
C theSimulationMode :: Forward or reverse mode exchange ( provides |
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C support for adjoint integration of code. ) |
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C theCornerMode :: Flag indicating whether corner updates are |
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C needed. |
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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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1.1 |
INTEGER myOLw |
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INTEGER myOLe |
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INTEGER myOLs |
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INTEGER myOLn |
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INTEGER myNz |
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_RX array(1-myOLw:sNx+myOLe, |
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& 1-myOLs:sNy+myOLn, |
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& myNZ, nSx, nSy) |
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INTEGER exchWidthX |
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INTEGER exchWidthY |
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INTEGER theSimulationMode |
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INTEGER theCornerMode |
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INTEGER myThid |
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1.2 |
C !LOCAL VARIABLES: |
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1.1 |
C == Local variables == |
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1.2 |
C I, J, K, iMin, iMax, iB :: 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 eBl :: Current exchange buffer level |
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C theProc, theTag, theType, :: Variables used in message building |
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1.1 |
C theSize |
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1.2 |
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, J, K, iMin, iMax, iB |
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INTEGER bi, bj, biW, bjW, biE, bjE |
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INTEGER eBl |
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INTEGER westCommMode |
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INTEGER eastCommMode |
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#ifdef ALLOW_USE_MPI |
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INTEGER theProc, theTag, theType, theSize, mpiRc |
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utke |
1.12 |
# ifdef ALLOW_AUTODIFF_OPENAD_AMPI |
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utke |
1.8 |
INTEGER mpiStatus(MPI_STATUS_SIZE) |
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utke |
1.10 |
INTEGER pReqI |
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utke |
1.8 |
# endif |
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1.1 |
#endif |
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C-- Write data to exchange buffer |
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C Various actions are possible depending on the communication mode |
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C as follows: |
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C Mode Action |
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C -------- --------------------------- |
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C COMM_NONE Do nothing |
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C |
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C COMM_MSG Message passing communication ( e.g. MPI ) |
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C Fill west send buffer from this tile. |
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C Send data with tag identifying tile and direction. |
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C Fill east send buffer from this tile. |
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C Send data with tag identifying tile and direction. |
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C |
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C COMM_PUT "Put" communication ( UMP_, shmemput, etc... ) |
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C Fill east receive buffer of west-neighbor tile |
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C Fill west receive buffer of east-neighbor tile |
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C Sync. memory |
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C Write data-ready Ack for east edge of west-neighbor |
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C tile |
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C Write data-ready Ack for west edge of east-neighbor |
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C tile |
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C Sync. memory |
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C |
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cnh |
1.2 |
CEOP |
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cnh |
1.4 |
INTEGER myBxLoSave(MAX_NO_THREADS) |
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INTEGER myBxHiSave(MAX_NO_THREADS) |
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INTEGER myByLoSave(MAX_NO_THREADS) |
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INTEGER myByHiSave(MAX_NO_THREADS) |
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cnh |
1.5 |
LOGICAL doingSingleThreadedComms |
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1.4 |
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1.5 |
doingSingleThreadedComms = .FALSE. |
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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 Set default behavior to have MPI comms done by a single thread. |
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C Most MPI implementations don't support concurrent comms from |
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C several threads. |
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IF ( nThreads .GT. 1 ) THEN |
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_BARRIER |
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_BEGIN_MASTER( myThid ) |
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DO I=1,nThreads |
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myBxLoSave(I) = myBxLo(I) |
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myBxHiSave(I) = myBxHi(I) |
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myByLoSave(I) = myByLo(I) |
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myByHiSave(I) = myByHi(I) |
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ENDDO |
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C Comment out loop below and myB[xy][Lo|Hi](1) settings below |
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C if you want to get multi-threaded MPI comms. |
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DO I=1,nThreads |
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myBxLo(I) = 0 |
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myBxHi(I) = -1 |
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myByLo(I) = 0 |
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myByHi(I) = -1 |
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ENDDO |
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myBxLo(1) = 1 |
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myBxHi(1) = nSx |
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myByLo(1) = 1 |
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myByHi(1) = nSy |
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doingSingleThreadedComms = .TRUE. |
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_END_MASTER( myThid ) |
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_BARRIER |
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ENDIF |
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#ifndef ALWAYS_USE_MPI |
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cnh |
1.4 |
ENDIF |
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cnh |
1.5 |
#endif |
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#endif |
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cnh |
1.4 |
|
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utke |
1.12 |
#ifdef ALLOW_AUTODIFF_OPENAD_AMPI |
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utke |
1.8 |
# ifdef ALLOW_USE_MPI |
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DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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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 ampi_awaitall ( |
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& exchNReqsX(1,bi,bj) , |
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& exchReqIdX(1,1,bi,bj) , |
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& mpiStatus , |
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& mpiRC ) |
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# ifndef ALWAYS_USE_MPI |
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ENDIF |
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# endif |
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ENDDO |
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ENDDO |
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# endif |
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#endif |
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adcroft |
1.1 |
DO bj=myByLo(myThid),myByHi(myThid) |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
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ebL = exchangeBufLevel(1,bi,bj) |
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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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C o Send or Put west edge |
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c >>>>>>>>>>>>>>>>>>> <<<<<<<<<<<<<<<<<<< |
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c >>>>>>>>>>>>>>>>>>> FORWARD RUN <<<<<<<<<<<<<<<<<<< |
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c >>>>>>>>>>>>>>>>>>> <<<<<<<<<<<<<<<<<<< |
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IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
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iMin = 1 |
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iMax = 1+exchWidthX-1 |
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IF ( westCommMode .EQ. COMM_MSG ) THEN |
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iB = 0 |
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DO K=1,myNz |
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DO J=1,sNy |
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DO I=iMin,iMax |
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iB = iB + 1 |
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westSendBuf_RX(iB,eBl,bi,bj) = array(I,J,K,bi,bj) |
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ENDDO |
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ENDDO |
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ENDDO |
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C Send the data |
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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 = _tileTagSendW(bi,bj) |
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theSize = iB |
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dimitri |
1.3 |
theType = _MPI_TYPE_RX |
212 |
utke |
1.12 |
# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
213 |
adcroft |
1.1 |
exchNReqsX(1,bi,bj) = exchNReqsX(1,bi,bj)+1 |
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CALL MPI_Isend(westSendBuf_RX(1,eBl,bi,bj), theSize, theType, |
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& theProc, theTag, MPI_COMM_MODEL, |
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& exchReqIdX(exchNReqsX(1,bi,bj),1,bi,bj), mpiRc ) |
217 |
utke |
1.8 |
# else |
218 |
utke |
1.10 |
pReqI=exchNReqsX(1,bi,bj)+1 |
219 |
utke |
1.8 |
CALL ampi_isend_RX( |
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& westSendBuf_RX(1,eBl,bi,bj), |
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& theSize, |
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& theType, |
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& theProc, |
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& theTag, |
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& MPI_COMM_MODEL, |
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utke |
1.10 |
& exchReqIdX(pReqI,1,bi,bj), |
227 |
utke |
1.9 |
& exchNReqsX(1,bi,bj), |
228 |
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& mpiStatus , |
229 |
utke |
1.8 |
& mpiRc ) |
230 |
utke |
1.12 |
# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
231 |
adcroft |
1.1 |
#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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jmc |
1.7 |
eastRecvAck(eBl,biW,bjW) = 1 |
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adcroft |
1.1 |
ELSEIF ( westCommMode .EQ. COMM_PUT ) THEN |
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iB = 0 |
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DO K=1,myNz |
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DO J=1,sNy |
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DO I=iMin,iMax |
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iB = iB + 1 |
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eastRecvBuf_RX(iB,eBl,biW,bjW) = array(I,J,K,bi,bj) |
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ENDDO |
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ENDDO |
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ENDDO |
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ELSEIF ( westCommMode .NE. COMM_NONE |
247 |
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& .AND. westCommMode .NE. COMM_GET ) THEN |
248 |
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STOP ' S/R EXCH: Invalid commW mode.' |
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ENDIF |
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C o Send or Put east edge |
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iMin = sNx-exchWidthX+1 |
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iMax = sNx |
254 |
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IF ( eastCommMode .EQ. COMM_MSG ) THEN |
255 |
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iB = 0 |
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DO K=1,myNz |
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DO J=1,sNy |
258 |
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DO I=iMin,iMax |
259 |
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iB = iB + 1 |
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eastSendBuf_RX(iB,eBl,bi,bj) = array(I,J,K,bi,bj) |
261 |
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ENDDO |
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ENDDO |
263 |
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ENDDO |
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C Send the data |
265 |
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#ifdef ALLOW_USE_MPI |
266 |
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#ifndef ALWAYS_USE_MPI |
267 |
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IF ( usingMPI ) THEN |
268 |
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#endif |
269 |
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theProc = tilePidE(bi,bj) |
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theTag = _tileTagSendE(bi,bj) |
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theSize = iB |
272 |
dimitri |
1.3 |
theType = _MPI_TYPE_RX |
273 |
utke |
1.12 |
# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
274 |
adcroft |
1.1 |
exchNReqsX(1,bi,bj) = exchNReqsX(1,bi,bj)+1 |
275 |
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CALL MPI_Isend(eastSendBuf_RX(1,eBl,bi,bj), theSize, theType, |
276 |
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& theProc, theTag, MPI_COMM_MODEL, |
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& exchReqIdX(exchNReqsX(1,bi,bj),1,bi,bj), mpiRc ) |
278 |
utke |
1.8 |
# else |
279 |
utke |
1.10 |
pReqI=exchNReqsX(1,bi,bj)+1 |
280 |
utke |
1.8 |
CALL ampi_isend_RX( |
281 |
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& eastSendBuf_RX(1,eBl,bi,bj) , |
282 |
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& theSize , |
283 |
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& theType , |
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& theProc , |
285 |
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& theTag , |
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& MPI_COMM_MODEL , |
287 |
utke |
1.10 |
& exchReqIdX(pReqI,1,bi,bj) , |
288 |
utke |
1.9 |
& exchNReqsX(1,bi,bj), |
289 |
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& mpiStatus , |
290 |
utke |
1.8 |
& mpiRc ) |
291 |
utke |
1.12 |
# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
292 |
adcroft |
1.1 |
#ifndef ALWAYS_USE_MPI |
293 |
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ENDIF |
294 |
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#endif |
295 |
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#endif /* ALLOW_USE_MPI */ |
296 |
jmc |
1.7 |
westRecvAck(eBl,biE,bjE) = 1 |
297 |
adcroft |
1.1 |
ELSEIF ( eastCommMode .EQ. COMM_PUT ) THEN |
298 |
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iB = 0 |
299 |
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DO K=1,myNz |
300 |
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DO J=1,sNy |
301 |
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DO I=iMin,iMax |
302 |
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iB = iB + 1 |
303 |
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westRecvBuf_RX(iB,eBl,biE,bjE) = array(I,J,K,bi,bj) |
304 |
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ENDDO |
305 |
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ENDDO |
306 |
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ENDDO |
307 |
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ELSEIF ( eastCommMode .NE. COMM_NONE |
308 |
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& .AND. eastCommMode .NE. COMM_GET ) THEN |
309 |
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STOP ' S/R EXCH: Invalid commE mode.' |
310 |
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ENDIF |
311 |
utke |
1.8 |
|
312 |
adcroft |
1.1 |
c >>>>>>>>>>>>>>>>>>> <<<<<<<<<<<<<<<<<<< |
313 |
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c >>>>>>>>>>>>>>>>>>> ADJOINT RUN <<<<<<<<<<<<<<<<<<< |
314 |
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c >>>>>>>>>>>>>>>>>>> <<<<<<<<<<<<<<<<<<< |
315 |
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ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
316 |
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iMin = 1-exchWidthX |
317 |
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iMax = 0 |
318 |
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IF ( westCommMode .EQ. COMM_MSG ) THEN |
319 |
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iB = 0 |
320 |
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DO K=1,myNz |
321 |
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DO J=1,sNy |
322 |
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DO I=iMin,iMax |
323 |
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iB = iB + 1 |
324 |
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westSendBuf_RX(iB,eBl,bi,bj) = array(I,J,K,bi,bj) |
325 |
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array(I,J,K,bi,bj) = 0.0 |
326 |
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ENDDO |
327 |
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ENDDO |
328 |
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ENDDO |
329 |
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C Send the data |
330 |
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#ifdef ALLOW_USE_MPI |
331 |
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#ifndef ALWAYS_USE_MPI |
332 |
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IF ( usingMPI ) THEN |
333 |
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#endif |
334 |
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theProc = tilePidW(bi,bj) |
335 |
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theTag = _tileTagSendW(bi,bj) |
336 |
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theSize = iB |
337 |
dimitri |
1.3 |
theType = _MPI_TYPE_RX |
338 |
adcroft |
1.1 |
exchNReqsX(1,bi,bj) = exchNReqsX(1,bi,bj)+1 |
339 |
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CALL MPI_Isend(westSendBuf_RX(1,eBl,bi,bj), theSize, theType, |
340 |
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& theProc, theTag, MPI_COMM_MODEL, |
341 |
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& exchReqIdX(exchNReqsX(1,bi,bj),1,bi,bj), mpiRc ) |
342 |
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#ifndef ALWAYS_USE_MPI |
343 |
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ENDIF |
344 |
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#endif |
345 |
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#endif /* ALLOW_USE_MPI */ |
346 |
jmc |
1.7 |
eastRecvAck(eBl,biW,bjW) = 1 |
347 |
adcroft |
1.1 |
ELSEIF ( westCommMode .EQ. COMM_PUT ) THEN |
348 |
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iB = 0 |
349 |
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DO K=1,myNz |
350 |
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DO J=1,sNy |
351 |
|
|
DO I=iMin,iMax |
352 |
|
|
iB = iB + 1 |
353 |
|
|
eastRecvBuf_RX(iB,eBl,biW,bjW) = array(I,J,K,bi,bj) |
354 |
|
|
array(I,J,K,bi,bj) = 0.0 |
355 |
|
|
ENDDO |
356 |
|
|
ENDDO |
357 |
|
|
ENDDO |
358 |
|
|
ELSEIF ( westCommMode .NE. COMM_NONE |
359 |
|
|
& .AND. westCommMode .NE. COMM_GET ) THEN |
360 |
|
|
STOP ' S/R EXCH: Invalid commW mode.' |
361 |
|
|
ENDIF |
362 |
|
|
|
363 |
|
|
C o Send or Put east edge |
364 |
|
|
iMin = sNx+1 |
365 |
|
|
iMax = sNx+exchWidthX |
366 |
|
|
IF ( eastCommMode .EQ. COMM_MSG ) THEN |
367 |
|
|
iB = 0 |
368 |
|
|
DO K=1,myNz |
369 |
|
|
DO J=1,sNy |
370 |
|
|
DO I=iMin,iMax |
371 |
|
|
iB = iB + 1 |
372 |
|
|
eastSendBuf_RX(iB,eBl,bi,bj) = array(I,J,K,bi,bj) |
373 |
|
|
array(I,J,K,bi,bj) = 0.0 |
374 |
|
|
ENDDO |
375 |
|
|
ENDDO |
376 |
|
|
ENDDO |
377 |
|
|
C Send the data |
378 |
|
|
#ifdef ALLOW_USE_MPI |
379 |
|
|
#ifndef ALWAYS_USE_MPI |
380 |
|
|
IF ( usingMPI ) THEN |
381 |
|
|
#endif |
382 |
|
|
theProc = tilePidE(bi,bj) |
383 |
|
|
theTag = _tileTagSendE(bi,bj) |
384 |
|
|
theSize = iB |
385 |
dimitri |
1.3 |
theType = _MPI_TYPE_RX |
386 |
adcroft |
1.1 |
exchNReqsX(1,bi,bj) = exchNReqsX(1,bi,bj)+1 |
387 |
|
|
CALL MPI_Isend(eastSendBuf_RX(1,eBl,bi,bj), theSize, theType, |
388 |
|
|
& theProc, theTag, MPI_COMM_MODEL, |
389 |
|
|
& exchReqIdX(exchNReqsX(1,bi,bj),1,bi,bj), mpiRc ) |
390 |
|
|
#ifndef ALWAYS_USE_MPI |
391 |
|
|
ENDIF |
392 |
|
|
#endif |
393 |
|
|
#endif /* ALLOW_USE_MPI */ |
394 |
jmc |
1.7 |
westRecvAck(eBl,biE,bjE) = 1 |
395 |
adcroft |
1.1 |
ELSEIF ( eastCommMode .EQ. COMM_PUT ) THEN |
396 |
|
|
iB = 0 |
397 |
|
|
DO K=1,myNz |
398 |
|
|
DO J=1,sNy |
399 |
|
|
DO I=iMin,iMax |
400 |
|
|
iB = iB + 1 |
401 |
|
|
westRecvBuf_RX(iB,eBl,biE,bjE) = array(I,J,K,bi,bj) |
402 |
|
|
array(I,J,K,bi,bj) = 0.0 |
403 |
|
|
ENDDO |
404 |
|
|
ENDDO |
405 |
|
|
ENDDO |
406 |
|
|
ELSEIF ( eastCommMode .NE. COMM_NONE |
407 |
|
|
& .AND. eastCommMode .NE. COMM_GET ) THEN |
408 |
|
|
STOP ' S/R EXCH: Invalid commE mode.' |
409 |
|
|
ENDIF |
410 |
|
|
|
411 |
|
|
ENDIF |
412 |
|
|
|
413 |
|
|
ENDDO |
414 |
|
|
ENDDO |
415 |
|
|
|
416 |
|
|
C-- Signal completetion ( making sure system-wide memory state is |
417 |
|
|
C-- consistent ). |
418 |
|
|
|
419 |
|
|
C ** NOTE ** We are relying on being able to produce strong-ordered |
420 |
|
|
C memory semantics here. In other words we assume that there is a |
421 |
|
|
C mechanism which can ensure that by the time the Ack is seen the |
422 |
|
|
C overlap region data that will be exchanged is up to date. |
423 |
|
|
IF ( exchNeedsMemSync ) CALL MEMSYNC |
424 |
|
|
|
425 |
|
|
DO bj=myByLo(myThid),myByHi(myThid) |
426 |
|
|
DO bi=myBxLo(myThid),myBxHi(myThid) |
427 |
|
|
ebL = exchangeBufLevel(1,bi,bj) |
428 |
|
|
biE = _tileBiE(bi,bj) |
429 |
|
|
bjE = _tileBjE(bi,bj) |
430 |
|
|
biW = _tileBiW(bi,bj) |
431 |
|
|
bjW = _tileBjW(bi,bj) |
432 |
|
|
westCommMode = _tileCommModeW(bi,bj) |
433 |
|
|
eastCommMode = _tileCommModeE(bi,bj) |
434 |
jmc |
1.7 |
IF ( westCommMode.EQ.COMM_PUT ) eastRecvAck(eBl,biW,bjW) = 1 |
435 |
|
|
IF ( eastCommMode.EQ.COMM_PUT ) westRecvAck(eBl,biE,bjE) = 1 |
436 |
|
|
IF ( westCommMode.EQ.COMM_GET ) eastRecvAck(eBl,biW,bjW) = 1 |
437 |
|
|
IF ( eastCommMode.EQ.COMM_GET ) westRecvAck(eBl,biE,bjE) = 1 |
438 |
adcroft |
1.1 |
ENDDO |
439 |
|
|
ENDDO |
440 |
|
|
|
441 |
|
|
C-- Make sure "ack" setting is seen system-wide. |
442 |
|
|
C Here strong-ordering is not an issue but we want to make |
443 |
|
|
C sure that processes that might spin on the above Ack settings |
444 |
|
|
C will see the setting. |
445 |
|
|
C ** NOTE ** On some machines we wont spin on the Ack setting |
446 |
|
|
C ( particularly the T90 ), instead we will use s system barrier. |
447 |
|
|
C On the T90 the system barrier is very fast and switches out the |
448 |
|
|
C thread while it waits. On most machines the system barrier |
449 |
|
|
C is much too slow and if we own the machine and have one thread |
450 |
|
|
C per process preemption is not a problem. |
451 |
|
|
IF ( exchNeedsMemSync ) CALL MEMSYNC |
452 |
|
|
|
453 |
cnh |
1.6 |
_BARRIER |
454 |
cnh |
1.5 |
IF ( doingSingleThreadedComms ) THEN |
455 |
|
|
C Restore saved settings that were stored to allow |
456 |
|
|
C single thred comms. |
457 |
|
|
_BEGIN_MASTER(myThid) |
458 |
|
|
DO I=1,nThreads |
459 |
|
|
myBxLo(I) = myBxLoSave(I) |
460 |
|
|
myBxHi(I) = myBxHiSave(I) |
461 |
|
|
myByLo(I) = myByLoSave(I) |
462 |
|
|
myByHi(I) = myByHiSave(I) |
463 |
|
|
ENDDO |
464 |
|
|
_END_MASTER(myThid) |
465 |
|
|
ENDIF |
466 |
cnh |
1.6 |
_BARRIER |
467 |
cnh |
1.4 |
|
468 |
adcroft |
1.1 |
RETURN |
469 |
|
|
END |