1 |
jmc |
1.13 |
C $Header: /u/gcmpack/MITgcm/eesupp/src/exch_rx_recv_get_x.template,v 1.12 2008/07/15 04:00:33 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_RECV_GET_X |
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C !INTERFACE: |
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adcroft |
1.1 |
SUBROUTINE EXCH_RX_RECV_GET_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 RECV_RX_GET_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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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 |
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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cnh |
1.2 |
C theSimulationMode :: Forward or reverse mode exchange ( provides |
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adcroft |
1.1 |
C support for adjoint integration of code. ) |
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cnh |
1.2 |
C theCornerMode :: Flag indicating whether corner updates are |
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adcroft |
1.1 |
C needed. |
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cnh |
1.2 |
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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& 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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cnh |
1.2 |
C !LOCAL VARIABLES: |
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adcroft |
1.1 |
C == Local variables == |
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cnh |
1.2 |
C I, J, K, iMin, iMax, iB :: Loop counters and extents |
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adcroft |
1.1 |
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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adcroft |
1.1 |
INTEGER I, J, K, iMin, iMax, iB, iB0 |
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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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INTEGER spinCount |
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#ifdef ALLOW_USE_MPI |
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utke |
1.11 |
INTEGER theProc, theTag, theType, theSize, pReqI |
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adcroft |
1.1 |
INTEGER mpiStatus(MPI_STATUS_SIZE,4), mpiRc |
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#endif |
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cnh |
1.2 |
CEOP |
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adcroft |
1.1 |
|
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cnh |
1.5 |
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 |
1.6 |
LOGICAL doingSingleThreadedComms |
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cnh |
1.5 |
|
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cnh |
1.6 |
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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jmc |
1.13 |
C Most MPI implementations do not support concurrent comms from |
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cnh |
1.6 |
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 |
1.5 |
ENDIF |
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cnh |
1.6 |
#endif |
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#endif |
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adcroft |
1.1 |
|
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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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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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IF ( westCommMode .EQ. COMM_MSG ) THEN |
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#ifdef ALLOW_USE_MPI |
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#ifndef ALWAYS_USE_MPI |
151 |
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IF ( usingMPI ) THEN |
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#endif |
153 |
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theProc = tilePidW(bi,bj) |
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theTag = _tileTagRecvW(bi,bj) |
155 |
dimitri |
1.3 |
theType = _MPI_TYPE_RX |
156 |
adcroft |
1.1 |
theSize = sNy*exchWidthX*myNz |
157 |
utke |
1.12 |
# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
158 |
adcroft |
1.1 |
CALL MPI_Recv( westRecvBuf_RX(1,eBl,bi,bj), theSize, theType, |
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& theProc, theTag, MPI_COMM_MODEL, |
160 |
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& mpiStatus, mpiRc ) |
161 |
utke |
1.9 |
# else |
162 |
jmc |
1.13 |
pReqI=exchNReqsX(1,bi,bj)+1 |
163 |
utke |
1.9 |
CALL ampi_recv_RX( |
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& westRecvBuf_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 |
1.11 |
& exchReqIdX(pReqI,1,bi,bj), |
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& exchNReqsX(1,bi,bj), |
172 |
utke |
1.9 |
& mpiStatus , |
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& mpiRc ) |
174 |
utke |
1.12 |
# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
175 |
adcroft |
1.1 |
#ifndef ALWAYS_USE_MPI |
176 |
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ENDIF |
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#endif |
178 |
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#endif /* ALLOW_USE_MPI */ |
179 |
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ENDIF |
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IF ( eastCommMode .EQ. COMM_MSG ) THEN |
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#ifdef ALLOW_USE_MPI |
182 |
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#ifndef ALWAYS_USE_MPI |
183 |
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IF ( usingMPI ) THEN |
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#endif |
185 |
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theProc = tilePidE(bi,bj) |
186 |
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theTag = _tileTagRecvE(bi,bj) |
187 |
dimitri |
1.3 |
theType = _MPI_TYPE_RX |
188 |
adcroft |
1.1 |
theSize = sNy*exchWidthX*myNz |
189 |
utke |
1.12 |
# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
190 |
adcroft |
1.1 |
CALL MPI_Recv( eastRecvBuf_RX(1,eBl,bi,bj), theSize, theType, |
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& theProc, theTag, MPI_COMM_MODEL, |
192 |
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& mpiStatus, mpiRc ) |
193 |
utke |
1.9 |
# else |
194 |
jmc |
1.13 |
pReqI=exchNReqsX(1,bi,bj)+1 |
195 |
utke |
1.9 |
CALL ampi_recv_RX( |
196 |
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& eastRecvBuf_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 , |
202 |
utke |
1.11 |
& exchReqIdX(pReqI,1,bi,bj), |
203 |
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& exchNReqsX(1,bi,bj), |
204 |
utke |
1.9 |
& mpiStatus , |
205 |
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& mpiRc ) |
206 |
utke |
1.12 |
# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
207 |
adcroft |
1.1 |
#ifndef ALWAYS_USE_MPI |
208 |
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ENDIF |
209 |
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#endif |
210 |
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#endif /* ALLOW_USE_MPI */ |
211 |
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ENDIF |
212 |
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ENDDO |
213 |
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ENDDO |
214 |
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215 |
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C-- Wait for buffers I am going read to be ready. |
216 |
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IF ( exchUsesBarrier ) THEN |
217 |
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C o On some machines ( T90 ) use system barrier rather than spinning. |
218 |
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CALL BARRIER( myThid ) |
219 |
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ELSE |
220 |
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C o Spin waiting for completetion flag. This avoids a global-lock |
221 |
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C i.e. we only lock waiting for data that we need. |
222 |
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DO bj=myByLo(myThid),myByHi(myThid) |
223 |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
224 |
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spinCount = 0 |
225 |
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ebL = exchangeBufLevel(1,bi,bj) |
226 |
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westCommMode = _tileCommModeW(bi,bj) |
227 |
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eastCommMode = _tileCommModeE(bi,bj) |
228 |
utke |
1.12 |
# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
229 |
adcroft |
1.1 |
10 CONTINUE |
230 |
jmc |
1.4 |
CALL FOOL_THE_COMPILER( spinCount ) |
231 |
adcroft |
1.1 |
spinCount = spinCount+1 |
232 |
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C IF ( myThid .EQ. 1 .AND. spinCount .GT. _EXCH_SPIN_LIMIT ) THEN |
233 |
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C WRITE(*,*) ' eBl = ', ebl |
234 |
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C STOP ' S/R EXCH_RECV_GET_X: spinCount .GT. _EXCH_SPIN_LIMIT' |
235 |
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C ENDIF |
236 |
jmc |
1.8 |
IF ( westRecvAck(eBl,bi,bj) .EQ. 0 ) GOTO 10 |
237 |
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IF ( eastRecvAck(eBl,bi,bj) .EQ. 0 ) GOTO 10 |
238 |
utke |
1.9 |
# else |
239 |
jmc |
1.13 |
do while ((westRecvAck(eBl,bi,bj) .EQ. 0. |
240 |
utke |
1.9 |
& .or. |
241 |
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& eastRecvAck(eBl,bi,bj) .EQ. 0. )) |
242 |
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CALL FOOL_THE_COMPILER( spinCount ) |
243 |
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spinCount = spinCount+1 |
244 |
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end do |
245 |
utke |
1.12 |
# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
246 |
adcroft |
1.1 |
C Clear outstanding requests |
247 |
jmc |
1.8 |
westRecvAck(eBl,bi,bj) = 0 |
248 |
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eastRecvAck(eBl,bi,bj) = 0 |
249 |
adcroft |
1.1 |
|
250 |
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IF ( exchNReqsX(1,bi,bj) .GT. 0 ) THEN |
251 |
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#ifdef ALLOW_USE_MPI |
252 |
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#ifndef ALWAYS_USE_MPI |
253 |
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IF ( usingMPI ) THEN |
254 |
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#endif |
255 |
utke |
1.12 |
# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
256 |
adcroft |
1.1 |
CALL MPI_Waitall( exchNReqsX(1,bi,bj), exchReqIdX(1,1,bi,bj), |
257 |
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& mpiStatus, mpiRC ) |
258 |
utke |
1.9 |
# else |
259 |
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CALL ampi_waitall( |
260 |
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& exchNReqsX(1,bi,bj), |
261 |
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& exchReqIdX(1,1,bi,bj), |
262 |
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& mpiStatus, |
263 |
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& mpiRC ) |
264 |
utke |
1.12 |
# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
265 |
adcroft |
1.1 |
#ifndef ALWAYS_USE_MPI |
266 |
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ENDIF |
267 |
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#endif |
268 |
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#endif /* ALLOW_USE_MPI */ |
269 |
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ENDIF |
270 |
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C Clear outstanding requests counter |
271 |
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exchNReqsX(1,bi,bj) = 0 |
272 |
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C Update statistics |
273 |
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IF ( exchCollectStatistics ) THEN |
274 |
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exchRecvXExchCount(1,bi,bj) = exchRecvXExchCount(1,bi,bj)+1 |
275 |
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exchRecvXSpinCount(1,bi,bj) = |
276 |
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& exchRecvXSpinCount(1,bi,bj)+spinCount |
277 |
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exchRecvXSpinMax(1,bi,bj) = |
278 |
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& MAX(exchRecvXSpinMax(1,bi,bj),spinCount) |
279 |
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exchRecvXSpinMin(1,bi,bj) = |
280 |
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& MIN(exchRecvXSpinMin(1,bi,bj),spinCount) |
281 |
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ENDIF |
282 |
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ENDDO |
283 |
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ENDDO |
284 |
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ENDIF |
285 |
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286 |
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C-- Read from the buffers |
287 |
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DO bj=myByLo(myThid),myByHi(myThid) |
288 |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
289 |
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290 |
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ebL = exchangeBufLevel(1,bi,bj) |
291 |
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biE = _tileBiE(bi,bj) |
292 |
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bjE = _tileBjE(bi,bj) |
293 |
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biW = _tileBiW(bi,bj) |
294 |
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bjW = _tileBjW(bi,bj) |
295 |
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westCommMode = _tileCommModeW(bi,bj) |
296 |
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eastCommMode = _tileCommModeE(bi,bj) |
297 |
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IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
298 |
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iMin = sNx+1 |
299 |
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iMax = sNx+exchWidthX |
300 |
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iB0 = 0 |
301 |
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IF ( eastCommMode .EQ. COMM_PUT |
302 |
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& .OR. eastCommMode .EQ. COMM_MSG ) THEN |
303 |
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iB = 0 |
304 |
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DO K=1,myNz |
305 |
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DO J=1,sNy |
306 |
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DO I=iMin,iMax |
307 |
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iB = iB + 1 |
308 |
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array(I,J,K,bi,bj) = eastRecvBuf_RX(iB,eBl,bi,bj) |
309 |
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ENDDO |
310 |
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ENDDO |
311 |
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ENDDO |
312 |
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ELSEIF ( eastCommMode .EQ. COMM_GET ) THEN |
313 |
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DO K=1,myNz |
314 |
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DO J=1,sNy |
315 |
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iB = iB0 |
316 |
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DO I=iMin,iMax |
317 |
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iB = iB+1 |
318 |
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array(I,J,K,bi,bj) = array(iB,J,K,biE,bjE) |
319 |
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ENDDO |
320 |
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ENDDO |
321 |
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ENDDO |
322 |
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ENDIF |
323 |
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ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
324 |
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iMin = sNx-exchWidthX+1 |
325 |
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iMax = sNx |
326 |
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iB0 = 1-exchWidthX-1 |
327 |
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IF ( eastCommMode .EQ. COMM_PUT |
328 |
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& .OR. eastCommMode .EQ. COMM_MSG ) THEN |
329 |
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iB = 0 |
330 |
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DO K=1,myNz |
331 |
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DO J=1,sNy |
332 |
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DO I=iMin,iMax |
333 |
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iB = iB + 1 |
334 |
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array(I,J,K,bi,bj) = |
335 |
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& array(I,J,K,bi,bj)+eastRecvBuf_RX(iB,eBl,bi,bj) |
336 |
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ENDDO |
337 |
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ENDDO |
338 |
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ENDDO |
339 |
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ELSEIF ( eastCommMode .EQ. COMM_GET ) THEN |
340 |
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DO K=1,myNz |
341 |
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DO J=1,sNy |
342 |
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|
iB = iB0 |
343 |
|
|
DO I=iMin,iMax |
344 |
|
|
iB = iB+1 |
345 |
|
|
array(I,J,K,bi,bj) = |
346 |
|
|
& array(I,J,K,bi,bj)+array(iB,J,K,biE,bjE) |
347 |
|
|
ENDDO |
348 |
|
|
ENDDO |
349 |
|
|
ENDDO |
350 |
|
|
ENDIF |
351 |
|
|
ENDIF |
352 |
|
|
IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
353 |
|
|
iMin = 1-exchWidthX |
354 |
|
|
iMax = 0 |
355 |
|
|
iB0 = sNx-exchWidthX |
356 |
|
|
IF ( westCommMode .EQ. COMM_PUT |
357 |
|
|
& .OR. westCommMode .EQ. COMM_MSG ) THEN |
358 |
|
|
iB = 0 |
359 |
|
|
DO K=1,myNz |
360 |
|
|
DO J=1,sNy |
361 |
|
|
DO I=iMin,iMax |
362 |
|
|
iB = iB + 1 |
363 |
|
|
array(I,J,K,bi,bj) = westRecvBuf_RX(iB,eBl,bi,bj) |
364 |
|
|
ENDDO |
365 |
|
|
ENDDO |
366 |
|
|
ENDDO |
367 |
|
|
ELSEIF ( westCommMode .EQ. COMM_GET ) THEN |
368 |
|
|
DO K=1,myNz |
369 |
|
|
DO J=1,sNy |
370 |
|
|
iB = iB0 |
371 |
|
|
DO I=iMin,iMax |
372 |
|
|
iB = iB+1 |
373 |
|
|
array(I,J,K,bi,bj) = array(iB,J,K,biW,bjW) |
374 |
|
|
ENDDO |
375 |
|
|
ENDDO |
376 |
|
|
ENDDO |
377 |
|
|
ENDIF |
378 |
|
|
ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
379 |
|
|
iMin = 1 |
380 |
|
|
iMax = 1+exchWidthX-1 |
381 |
|
|
iB0 = sNx |
382 |
|
|
IF ( westCommMode .EQ. COMM_PUT |
383 |
|
|
& .OR. westCommMode .EQ. COMM_MSG ) THEN |
384 |
|
|
iB = 0 |
385 |
|
|
DO K=1,myNz |
386 |
|
|
DO J=1,sNy |
387 |
|
|
DO I=iMin,iMax |
388 |
|
|
iB = iB + 1 |
389 |
|
|
array(I,J,K,bi,bj) = |
390 |
|
|
& array(I,J,K,bi,bj)+westRecvBuf_RX(iB,eBl,bi,bj) |
391 |
|
|
ENDDO |
392 |
|
|
ENDDO |
393 |
|
|
ENDDO |
394 |
|
|
ELSEIF ( westCommMode .EQ. COMM_GET ) THEN |
395 |
|
|
DO K=1,myNz |
396 |
|
|
DO J=1,sNy |
397 |
|
|
iB = iB0 |
398 |
|
|
DO I=iMin,iMax |
399 |
|
|
iB = iB+1 |
400 |
|
|
array(I,J,K,bi,bj) = |
401 |
|
|
& array(I,J,K,bi,bj)+array(iB,J,K,biW,bjW) |
402 |
|
|
ENDDO |
403 |
|
|
ENDDO |
404 |
|
|
ENDDO |
405 |
|
|
ENDIF |
406 |
|
|
ENDIF |
407 |
|
|
|
408 |
|
|
ENDDO |
409 |
|
|
ENDDO |
410 |
|
|
|
411 |
cnh |
1.7 |
_BARRIER |
412 |
cnh |
1.6 |
IF ( doingSingleThreadedComms ) THEN |
413 |
|
|
C Restore saved settings that were stored to allow |
414 |
|
|
C single thred comms. |
415 |
|
|
_BEGIN_MASTER(myThid) |
416 |
|
|
DO I=1,nThreads |
417 |
|
|
myBxLo(I) = myBxLoSave(I) |
418 |
|
|
myBxHi(I) = myBxHiSave(I) |
419 |
|
|
myByLo(I) = myByLoSave(I) |
420 |
|
|
myByHi(I) = myByHiSave(I) |
421 |
|
|
ENDDO |
422 |
|
|
_END_MASTER(myThid) |
423 |
|
|
ENDIF |
424 |
cnh |
1.7 |
_BARRIER |
425 |
cnh |
1.5 |
|
426 |
adcroft |
1.1 |
RETURN |
427 |
|
|
END |