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jmc |
1.14 |
C $Header: /u/gcmpack/MITgcm/eesupp/src/exch_rx_send_put_x.template,v 1.13 2009/01/09 22:51:12 jmc 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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jmc |
1.14 |
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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cnh |
1.2 |
C *==========================================================* |
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jmc |
1.14 |
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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cnh |
1.2 |
C *==========================================================* |
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adcroft |
1.1 |
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cnh |
1.2 |
C !USES: |
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adcroft |
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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cnh |
1.2 |
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C !INPUT/OUTPUT PARAMETERS: |
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adcroft |
1.1 |
C == Routine arguments == |
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cnh |
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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adcroft |
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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jmc |
1.14 |
C theSimulationMode :: Forward or reverse mode exchange ( provides |
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cnh |
1.2 |
C support for adjoint integration of code. ) |
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jmc |
1.14 |
C theCornerMode :: Flag indicating whether corner updates are |
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cnh |
1.2 |
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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adcroft |
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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jmc |
1.14 |
& 1-myOLs:sNy+myOLn, |
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adcroft |
1.1 |
& 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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cnh |
1.2 |
C !LOCAL VARIABLES: |
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adcroft |
1.1 |
C == Local variables == |
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jmc |
1.14 |
C i, j, k, iMin, iMax, iB :: Loop counters and extents |
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C bi, bj |
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cnh |
1.2 |
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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adcroft |
1.1 |
C theSize |
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cnh |
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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jmc |
1.14 |
INTEGER i, j, k, iMin, iMax, iB |
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adcroft |
1.1 |
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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adcroft |
1.1 |
#endif |
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C-- Write data to exchange buffer |
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jmc |
1.14 |
C Various actions are possible depending on the communication mode |
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adcroft |
1.1 |
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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jmc |
1.14 |
C |
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cnh |
1.2 |
CEOP |
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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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# ifndef ALWAYS_USE_MPI |
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jmc |
1.14 |
IF ( usingMPI ) THEN |
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utke |
1.8 |
# endif |
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jmc |
1.14 |
_BEGIN_MASTER(myThid) |
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DO bj=1,nSy |
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DO bi=1,nSx |
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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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ENDDO |
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ENDDO |
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_END_MASTER(myThid) |
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utke |
1.8 |
# ifndef ALWAYS_USE_MPI |
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jmc |
1.14 |
ENDIF |
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utke |
1.8 |
# endif |
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# endif |
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#endif |
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jmc |
1.14 |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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C Prevent anyone to access shared buffer while an other thread modifies it |
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_BARRIER |
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C Fill shared buffers from array values |
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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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jmc |
1.14 |
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 >>>>>>>>>>>>>>>>>>> FORWARD RUN <<<<<<<<<<<<<<<<<<< |
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IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
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adcroft |
1.1 |
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C o Send or Put west edge |
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iMin = 1 |
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iMax = 1+exchWidthX-1 |
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jmc |
1.14 |
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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adcroft |
1.1 |
ENDDO |
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ENDDO |
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jmc |
1.14 |
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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adcroft |
1.1 |
ENDDO |
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ENDDO |
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jmc |
1.14 |
ELSEIF ( westCommMode .NE. COMM_NONE |
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& .AND. westCommMode .NE. COMM_GET ) THEN |
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STOP ' S/R EXCH: Invalid commW mode.' |
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ENDIF |
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adcroft |
1.1 |
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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 |
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jmc |
1.14 |
IF ( eastCommMode .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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eastSendBuf_RX(iB,eBl,bi,bj) = array(i,j,k,bi,bj) |
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ENDDO |
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adcroft |
1.1 |
ENDDO |
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ENDDO |
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jmc |
1.14 |
ELSEIF ( eastCommMode .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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westRecvBuf_RX(iB,eBl,biE,bjE) = array(i,j,k,bi,bj) |
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ENDDO |
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adcroft |
1.1 |
ENDDO |
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ENDDO |
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jmc |
1.14 |
ELSEIF ( eastCommMode .NE. COMM_NONE |
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& .AND. eastCommMode .NE. COMM_GET ) THEN |
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STOP ' S/R EXCH: Invalid commE mode.' |
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ENDIF |
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utke |
1.8 |
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jmc |
1.14 |
C >>>>>>>>>>>>>>>>>>> ADJOINT RUN <<<<<<<<<<<<<<<<<<< |
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adcroft |
1.1 |
ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
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jmc |
1.14 |
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C o Send or Put west edge |
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adcroft |
1.1 |
iMin = 1-exchWidthX |
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iMax = 0 |
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jmc |
1.14 |
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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array(i,j,k,bi,bj) = 0.0 |
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ENDDO |
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adcroft |
1.1 |
ENDDO |
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ENDDO |
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jmc |
1.14 |
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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array(i,j,k,bi,bj) = 0.0 |
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ENDDO |
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adcroft |
1.1 |
ENDDO |
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ENDDO |
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jmc |
1.14 |
ELSEIF ( westCommMode .NE. COMM_NONE |
| 238 |
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& .AND. westCommMode .NE. COMM_GET ) THEN |
| 239 |
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STOP ' S/R EXCH: Invalid commW mode.' |
| 240 |
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ENDIF |
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adcroft |
1.1 |
|
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C o Send or Put east edge |
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iMin = sNx+1 |
| 244 |
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iMax = sNx+exchWidthX |
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jmc |
1.14 |
IF ( eastCommMode .EQ. COMM_MSG ) THEN |
| 246 |
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iB = 0 |
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DO k=1,myNz |
| 248 |
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DO j=1,sNy |
| 249 |
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DO i=iMin,iMax |
| 250 |
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iB = iB + 1 |
| 251 |
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eastSendBuf_RX(iB,eBl,bi,bj) = array(i,j,k,bi,bj) |
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array(i,j,k,bi,bj) = 0.0 |
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ENDDO |
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adcroft |
1.1 |
ENDDO |
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ENDDO |
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jmc |
1.14 |
ELSEIF ( eastCommMode .EQ. COMM_PUT ) THEN |
| 257 |
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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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westRecvBuf_RX(iB,eBl,biE,bjE) = array(i,j,k,bi,bj) |
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array(i,j,k,bi,bj) = 0.0 |
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ENDDO |
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adcroft |
1.1 |
ENDDO |
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ENDDO |
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jmc |
1.14 |
ELSEIF ( eastCommMode .NE. COMM_NONE |
| 268 |
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& .AND. eastCommMode .NE. COMM_GET ) THEN |
| 269 |
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STOP ' S/R EXCH: Invalid commE mode.' |
| 270 |
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ENDIF |
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adcroft |
1.1 |
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| 272 |
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ENDIF |
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ENDDO |
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ENDDO |
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jmc |
1.14 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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adcroft |
1.1 |
C-- Signal completetion ( making sure system-wide memory state is |
| 279 |
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C-- consistent ). |
| 280 |
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| 281 |
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C ** NOTE ** We are relying on being able to produce strong-ordered |
| 282 |
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C memory semantics here. In other words we assume that there is a |
| 283 |
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C mechanism which can ensure that by the time the Ack is seen the |
| 284 |
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C overlap region data that will be exchanged is up to date. |
| 285 |
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IF ( exchNeedsMemSync ) CALL MEMSYNC |
| 286 |
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| 287 |
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DO bj=myByLo(myThid),myByHi(myThid) |
| 288 |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
| 289 |
jmc |
1.14 |
eBl = exchangeBufLevel(1,bi,bj) |
| 290 |
adcroft |
1.1 |
biE = _tileBiE(bi,bj) |
| 291 |
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bjE = _tileBjE(bi,bj) |
| 292 |
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biW = _tileBiW(bi,bj) |
| 293 |
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bjW = _tileBjW(bi,bj) |
| 294 |
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westCommMode = _tileCommModeW(bi,bj) |
| 295 |
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eastCommMode = _tileCommModeE(bi,bj) |
| 296 |
jmc |
1.7 |
IF ( westCommMode.EQ.COMM_PUT ) eastRecvAck(eBl,biW,bjW) = 1 |
| 297 |
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IF ( eastCommMode.EQ.COMM_PUT ) westRecvAck(eBl,biE,bjE) = 1 |
| 298 |
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IF ( westCommMode.EQ.COMM_GET ) eastRecvAck(eBl,biW,bjW) = 1 |
| 299 |
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IF ( eastCommMode.EQ.COMM_GET ) westRecvAck(eBl,biE,bjE) = 1 |
| 300 |
adcroft |
1.1 |
ENDDO |
| 301 |
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ENDDO |
| 302 |
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| 303 |
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C-- Make sure "ack" setting is seen system-wide. |
| 304 |
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C Here strong-ordering is not an issue but we want to make |
| 305 |
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C sure that processes that might spin on the above Ack settings |
| 306 |
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C will see the setting. |
| 307 |
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C ** NOTE ** On some machines we wont spin on the Ack setting |
| 308 |
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C ( particularly the T90 ), instead we will use s system barrier. |
| 309 |
jmc |
1.14 |
C On the T90 the system barrier is very fast and switches out the |
| 310 |
adcroft |
1.1 |
C thread while it waits. On most machines the system barrier |
| 311 |
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C is much too slow and if we own the machine and have one thread |
| 312 |
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C per process preemption is not a problem. |
| 313 |
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IF ( exchNeedsMemSync ) CALL MEMSYNC |
| 314 |
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| 315 |
jmc |
1.14 |
C Wait until all threads finish filling buffer |
| 316 |
cnh |
1.6 |
_BARRIER |
| 317 |
cnh |
1.4 |
|
| 318 |
jmc |
1.14 |
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 319 |
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| 320 |
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#ifdef ALLOW_USE_MPI |
| 321 |
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#ifndef ALWAYS_USE_MPI |
| 322 |
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IF ( usingMPI ) THEN |
| 323 |
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#endif |
| 324 |
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C-- Send buffer data: Only Master Thread do proc communication |
| 325 |
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_BEGIN_MASTER(myThid) |
| 326 |
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| 327 |
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DO bj=1,nSy |
| 328 |
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DO bi=1,nSx |
| 329 |
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| 330 |
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eBl = exchangeBufLevel(1,bi,bj) |
| 331 |
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westCommMode = _tileCommModeW(bi,bj) |
| 332 |
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eastCommMode = _tileCommModeE(bi,bj) |
| 333 |
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biE = _tileBiE(bi,bj) |
| 334 |
|
|
bjE = _tileBjE(bi,bj) |
| 335 |
|
|
biW = _tileBiW(bi,bj) |
| 336 |
|
|
bjW = _tileBjW(bi,bj) |
| 337 |
|
|
theType = _MPI_TYPE_RX |
| 338 |
|
|
theSize = sNy*exchWidthX*myNz |
| 339 |
|
|
|
| 340 |
|
|
IF ( westCommMode .EQ. COMM_MSG ) THEN |
| 341 |
|
|
C Send buffer data (copied from west edge) |
| 342 |
|
|
theProc = tilePidW(bi,bj) |
| 343 |
|
|
theTag = _tileTagSendW(bi,bj) |
| 344 |
|
|
# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
| 345 |
|
|
exchNReqsX(1,bi,bj) = exchNReqsX(1,bi,bj)+1 |
| 346 |
|
|
CALL MPI_Isend( westSendBuf_RX(1,eBl,bi,bj), theSize, |
| 347 |
|
|
& theType, theProc, theTag, MPI_COMM_MODEL, |
| 348 |
|
|
& exchReqIdX(exchNReqsX(1,bi,bj),1,bi,bj), |
| 349 |
|
|
& mpiRc ) |
| 350 |
|
|
# else |
| 351 |
|
|
pReqI=exchNReqsX(1,bi,bj)+1 |
| 352 |
|
|
CALL ampi_isend_RX( |
| 353 |
|
|
& westSendBuf_RX(1,eBl,bi,bj), |
| 354 |
|
|
& theSize, |
| 355 |
|
|
& theType, |
| 356 |
|
|
& theProc, |
| 357 |
|
|
& theTag, |
| 358 |
|
|
& MPI_COMM_MODEL, |
| 359 |
|
|
& exchReqIdX(pReqI,1,bi,bj), |
| 360 |
|
|
& exchNReqsX(1,bi,bj), |
| 361 |
|
|
& mpiStatus , |
| 362 |
|
|
& mpiRc ) |
| 363 |
|
|
# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
| 364 |
|
|
c eastRecvAck(eBl,biW,bjW) = 1 |
| 365 |
|
|
ENDIF |
| 366 |
|
|
|
| 367 |
|
|
IF ( eastCommMode .EQ. COMM_MSG ) THEN |
| 368 |
|
|
C Send buffer data (copied from east edge) |
| 369 |
|
|
theProc = tilePidE(bi,bj) |
| 370 |
|
|
theTag = _tileTagSendE(bi,bj) |
| 371 |
|
|
# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
| 372 |
|
|
exchNReqsX(1,bi,bj) = exchNReqsX(1,bi,bj)+1 |
| 373 |
|
|
CALL MPI_Isend( eastSendBuf_RX(1,eBl,bi,bj), theSize, |
| 374 |
|
|
& theType, theProc, theTag, MPI_COMM_MODEL, |
| 375 |
|
|
& exchReqIdX(exchNReqsX(1,bi,bj),1,bi,bj), |
| 376 |
|
|
& mpiRc ) |
| 377 |
|
|
# else |
| 378 |
|
|
pReqI=exchNReqsX(1,bi,bj)+1 |
| 379 |
|
|
CALL ampi_isend_RX( |
| 380 |
|
|
& eastSendBuf_RX(1,eBl,bi,bj) , |
| 381 |
|
|
& theSize , |
| 382 |
|
|
& theType , |
| 383 |
|
|
& theProc , |
| 384 |
|
|
& theTag , |
| 385 |
|
|
& MPI_COMM_MODEL , |
| 386 |
|
|
& exchReqIdX(pReqI,1,bi,bj) , |
| 387 |
|
|
& exchNReqsX(1,bi,bj), |
| 388 |
|
|
& mpiStatus , |
| 389 |
|
|
& mpiRc ) |
| 390 |
|
|
# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
| 391 |
|
|
c westRecvAck(eBl,biE,bjE) = 1 |
| 392 |
|
|
ENDIF |
| 393 |
|
|
|
| 394 |
|
|
ENDDO |
| 395 |
|
|
ENDDO |
| 396 |
|
|
|
| 397 |
|
|
_END_MASTER(myThid) |
| 398 |
|
|
|
| 399 |
|
|
#ifndef ALWAYS_USE_MPI |
| 400 |
|
|
ENDIF |
| 401 |
|
|
#endif |
| 402 |
|
|
#endif /* ALLOW_USE_MPI */ |
| 403 |
|
|
|
| 404 |
|
|
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
| 405 |
|
|
RETURN |
| 406 |
adcroft |
1.1 |
END |
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