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jmc |
1.15 |
C $Header: /u/gcmpack/MITgcm/eesupp/src/exch_rx_recv_get_y.template,v 1.14 2010/05/17 02:28:06 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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jmc |
1.14 |
#undef EXCH_USE_SPINNING |
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adcroft |
1.1 |
|
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cnh |
1.2 |
CBOP |
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C !ROUTINE: EXCH_RX_RECV_GET_Y |
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C !INTERFACE: |
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adcroft |
1.1 |
SUBROUTINE EXCH_RX_RECV_GET_Y( 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 RECV_GET_Y |
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C | o "Send" or "put" Y 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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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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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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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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jmc |
1.14 |
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 biS, bjS :: South tile indices |
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C biN, bjN :: North 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 southCommMode :: Working variables holding type |
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C northCommMode of communication a particular |
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C tile face uses. |
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C spinCount :: Exchange statistics counter |
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C mpiStatus :: MPI error code |
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jmc |
1.14 |
INTEGER i, j, k, iMin, iMax, jMin, jMax, iB, iB0 |
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adcroft |
1.1 |
INTEGER bi, bj, biS, bjS, biN, bjN |
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INTEGER eBl |
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INTEGER southCommMode |
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INTEGER northCommMode |
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jmc |
1.14 |
#ifdef EXCH_USE_SPINNING |
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adcroft |
1.1 |
INTEGER spinCount |
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jmc |
1.14 |
#endif |
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adcroft |
1.1 |
#ifdef ALLOW_USE_MPI |
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jmc |
1.15 |
INTEGER theProc, theTag, theType, theSize |
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adcroft |
1.1 |
INTEGER mpiStatus(MPI_STATUS_SIZE,4), mpiRc |
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jmc |
1.15 |
# ifdef ALLOW_AUTODIFF_OPENAD_AMPI |
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INTEGER pReqI |
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# endif |
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#endif /* ALLOW_USE_MPI */ |
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cnh |
1.2 |
CEOP |
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adcroft |
1.1 |
|
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jmc |
1.14 |
C-- Under a "put" scenario we |
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adcroft |
1.1 |
C-- i. set completetion signal for buffer we put into. |
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jmc |
1.14 |
C-- ii. wait for completetion signal indicating data has been put in |
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adcroft |
1.1 |
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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#ifdef ALLOW_USE_MPI |
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jmc |
1.14 |
IF ( usingMPI ) THEN |
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jmc |
1.15 |
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jmc |
1.14 |
C-- Receive buffer data: Only Master Thread do proc communication |
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_BEGIN_MASTER(myThid) |
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DO bj=1,nSy |
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DO bi=1,nSx |
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eBl = exchangeBufLevel(1,bi,bj) |
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southCommMode = _tileCommModeS(bi,bj) |
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northCommMode = _tileCommModeN(bi,bj) |
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biN = _tileBiN(bi,bj) |
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bjN = _tileBjN(bi,bj) |
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biS = _tileBiS(bi,bj) |
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bjS = _tileBjS(bi,bj) |
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theType = _MPI_TYPE_RX |
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theSize = sNx*exchWidthY*myNz |
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IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) THEN |
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theSize = (sNx+2*exchWidthX)*exchWidthY*myNz |
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ENDIF |
122 |
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IF ( southCommMode .EQ. COMM_MSG ) THEN |
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adcroft |
1.1 |
theProc = tilePidS(bi,bj) |
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theTag = _tileTagRecvS(bi,bj) |
126 |
utke |
1.12 |
# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
127 |
jmc |
1.14 |
CALL MPI_Recv( southRecvBuf_RX(1,eBl,bi,bj), theSize, |
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& theType, theProc, theTag, MPI_COMM_MODEL, |
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adcroft |
1.1 |
& mpiStatus, mpiRc ) |
130 |
jmc |
1.14 |
# else |
131 |
utke |
1.11 |
pReqI=exchNReqsY(1,bi,bj)+1 |
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jmc |
1.14 |
CALL ampi_recv_RX( |
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& southRecvBuf_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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& exchReqIdY(pReqI,1,bi,bj), |
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& exchNReqsY(1,bi,bj), |
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& mpiStatus , |
142 |
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& mpiRc ) |
143 |
utke |
1.12 |
# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
144 |
jmc |
1.14 |
southRecvAck(eBl,bi,bj) = 1 |
145 |
adcroft |
1.1 |
ENDIF |
146 |
jmc |
1.14 |
|
147 |
adcroft |
1.1 |
IF ( northCommMode .EQ. COMM_MSG ) THEN |
148 |
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theProc = tilePidN(bi,bj) |
149 |
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theTag = _tileTagRecvN(bi,bj) |
150 |
utke |
1.12 |
# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
151 |
jmc |
1.14 |
CALL MPI_Recv( northRecvBuf_RX(1,eBl,bi,bj), theSize, |
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& theType, theProc, theTag, MPI_COMM_MODEL, |
153 |
adcroft |
1.1 |
& mpiStatus, mpiRc ) |
154 |
utke |
1.9 |
# else |
155 |
jmc |
1.13 |
pReqI=exchNReqsY(1,bi,bj)+1 |
156 |
jmc |
1.14 |
CALL ampi_recv_RX( |
157 |
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& northRecvBuf_RX(1,eBl,bi,bj) , |
158 |
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& theSize , |
159 |
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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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& exchReqIdY(pReqI,1,bi,bj), |
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& exchNReqsY(1,bi,bj), |
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& mpiStatus , |
166 |
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& mpiRc ) |
167 |
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# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
168 |
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northRecvAck(eBl,bi,bj) = 1 |
169 |
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ENDIF |
170 |
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ENDDO |
171 |
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ENDDO |
172 |
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173 |
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C-- Processes wait for buffers I am going to read to be ready. |
174 |
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IF ( .NOT.exchUsesBarrier ) THEN |
175 |
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DO bj=1,nSy |
176 |
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DO bi=1,nSx |
177 |
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IF ( exchNReqsY(1,bi,bj) .GT. 0 ) THEN |
178 |
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# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
179 |
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CALL MPI_Waitall( exchNReqsY(1,bi,bj), exchReqIdY(1,1,bi,bj), |
180 |
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& mpiStatus, mpiRC ) |
181 |
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# else |
182 |
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CALL ampi_waitall( |
183 |
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& exchNReqsY(1,bi,bj), |
184 |
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& exchReqIdY(1,1,bi,bj), |
185 |
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& mpiStatus, |
186 |
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& mpiRC ) |
187 |
utke |
1.12 |
# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
188 |
jmc |
1.14 |
ENDIF |
189 |
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C Clear outstanding requests counter |
190 |
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exchNReqsY(1,bi,bj) = 0 |
191 |
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ENDDO |
192 |
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ENDDO |
193 |
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ENDIF |
194 |
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195 |
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_END_MASTER(myThid) |
196 |
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C-- need to sync threads after master has received data ; |
197 |
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C (done after mpi waitall in case waitall is really needed) |
198 |
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_BARRIER |
199 |
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200 |
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ENDIF |
201 |
adcroft |
1.1 |
#endif /* ALLOW_USE_MPI */ |
202 |
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203 |
jmc |
1.14 |
C-- Threads wait for buffers I am going to read to be ready. |
204 |
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C note: added BARRIER in exch_send_put S/R and here above (message mode) |
205 |
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C so that we no longer needs this (undef EXCH_USE_SPINNING) |
206 |
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#ifdef EXCH_USE_SPINNING |
207 |
adcroft |
1.1 |
IF ( exchUsesBarrier ) THEN |
208 |
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C o On some machines ( T90 ) use system barrier rather than spinning. |
209 |
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CALL BARRIER( myThid ) |
210 |
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ELSE |
211 |
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C o Spin waiting for completetion flag. This avoids a global-lock |
212 |
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C i.e. we only lock waiting for data that we need. |
213 |
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DO bj=myByLo(myThid),myByHi(myThid) |
214 |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
215 |
jmc |
1.14 |
|
216 |
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spinCount = 0 |
217 |
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eBl = exchangeBufLevel(1,bi,bj) |
218 |
adcroft |
1.1 |
southCommMode = _tileCommModeS(bi,bj) |
219 |
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northCommMode = _tileCommModeN(bi,bj) |
220 |
utke |
1.12 |
# ifndef ALLOW_AUTODIFF_OPENAD_AMPI |
221 |
adcroft |
1.1 |
10 CONTINUE |
222 |
jmc |
1.4 |
CALL FOOL_THE_COMPILER( spinCount ) |
223 |
adcroft |
1.1 |
spinCount = spinCount+1 |
224 |
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C IF ( myThid .EQ. 1 .AND. spinCount .GT. _EXCH_SPIN_LIMIT ) THEN |
225 |
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C STOP ' S/R EXCH_RECV_GET_Y: spinCount .GT. _EXCH_SPIN_LIMIT' |
226 |
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C ENDIF |
227 |
jmc |
1.8 |
IF ( southRecvAck(eBl,bi,bj) .EQ. 0 ) GOTO 10 |
228 |
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IF ( northRecvAck(eBl,bi,bj) .EQ. 0 ) GOTO 10 |
229 |
utke |
1.9 |
# else |
230 |
jmc |
1.14 |
DO WHILE ((southRecvAck(eBl,bi,bj) .EQ. 0 |
231 |
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& .OR. |
232 |
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& northRecvAck(eBl,bi,bj) .EQ. 0 )) |
233 |
utke |
1.9 |
CALL FOOL_THE_COMPILER( spinCount ) |
234 |
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spinCount = spinCount+1 |
235 |
jmc |
1.14 |
ENDDO |
236 |
utke |
1.12 |
# endif /* ALLOW_AUTODIFF_OPENAD_AMPI */ |
237 |
adcroft |
1.1 |
C Clear requests |
238 |
jmc |
1.8 |
southRecvAck(eBl,bi,bj) = 0 |
239 |
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northRecvAck(eBl,bi,bj) = 0 |
240 |
adcroft |
1.1 |
C Update statistics |
241 |
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IF ( exchCollectStatistics ) THEN |
242 |
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exchRecvYExchCount(1,bi,bj) = exchRecvYExchCount(1,bi,bj)+1 |
243 |
jmc |
1.14 |
exchRecvYSpinCount(1,bi,bj) = |
244 |
adcroft |
1.1 |
& exchRecvYSpinCount(1,bi,bj)+spinCount |
245 |
jmc |
1.14 |
exchRecvYSpinMax(1,bi,bj) = |
246 |
adcroft |
1.1 |
& MAX(exchRecvYSpinMax(1,bi,bj),spinCount) |
247 |
jmc |
1.14 |
exchRecvYSpinMin(1,bi,bj) = |
248 |
adcroft |
1.1 |
& MIN(exchRecvYSpinMin(1,bi,bj),spinCount) |
249 |
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ENDIF |
250 |
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251 |
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ENDDO |
252 |
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ENDDO |
253 |
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ENDIF |
254 |
jmc |
1.14 |
#endif /* EXCH_USE_SPINNING */ |
255 |
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256 |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
257 |
adcroft |
1.1 |
|
258 |
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C-- Read from the buffers |
259 |
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DO bj=myByLo(myThid),myByHi(myThid) |
260 |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
261 |
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|
262 |
jmc |
1.14 |
eBl = exchangeBufLevel(1,bi,bj) |
263 |
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biN = _tileBiN(bi,bj) |
264 |
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bjN = _tileBjN(bi,bj) |
265 |
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biS = _tileBiS(bi,bj) |
266 |
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bjS = _tileBjS(bi,bj) |
267 |
adcroft |
1.1 |
southCommMode = _tileCommModeS(bi,bj) |
268 |
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northCommMode = _tileCommModeN(bi,bj) |
269 |
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IF ( theCornerMode .EQ. EXCH_UPDATE_CORNERS ) THEN |
270 |
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iMin = 1-exchWidthX |
271 |
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iMax = sNx+exchWidthX |
272 |
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ELSE |
273 |
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iMin = 1 |
274 |
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iMax = sNx |
275 |
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ENDIF |
276 |
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IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
277 |
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jMin = sNy+1 |
278 |
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jMax = sNy+exchWidthY |
279 |
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iB0 = 0 |
280 |
jmc |
1.14 |
IF ( northCommMode .EQ. COMM_PUT |
281 |
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& .OR. northCommMode .EQ. COMM_MSG ) THEN |
282 |
adcroft |
1.1 |
iB = 0 |
283 |
jmc |
1.14 |
DO k=1,myNz |
284 |
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DO j=jMin,jMax |
285 |
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DO i=iMin,iMax |
286 |
adcroft |
1.1 |
iB = iB + 1 |
287 |
jmc |
1.14 |
array(i,j,k,bi,bj) = northRecvBuf_RX(iB,eBl,bi,bj) |
288 |
adcroft |
1.1 |
ENDDO |
289 |
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ENDDO |
290 |
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ENDDO |
291 |
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ELSEIF ( northCommMode .EQ. COMM_GET ) THEN |
292 |
jmc |
1.14 |
DO k=1,myNz |
293 |
adcroft |
1.1 |
iB = iB0 |
294 |
jmc |
1.14 |
DO j=jMin,jMax |
295 |
adcroft |
1.1 |
iB = iB+1 |
296 |
jmc |
1.14 |
DO i=iMin,iMax |
297 |
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array(i,j,k,bi,bj) = array(i,iB,k,biN,bjN) |
298 |
adcroft |
1.1 |
ENDDO |
299 |
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ENDDO |
300 |
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ENDDO |
301 |
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ENDIF |
302 |
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ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
303 |
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jMin = sNy-exchWidthY+1 |
304 |
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jMax = sNy |
305 |
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iB0 = 1-exchWidthY-1 |
306 |
jmc |
1.14 |
IF ( northCommMode .EQ. COMM_PUT |
307 |
|
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& .OR. northCommMode .EQ. COMM_MSG ) THEN |
308 |
adcroft |
1.1 |
iB = 0 |
309 |
jmc |
1.14 |
DO k=1,myNz |
310 |
|
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DO j=jMin,jMax |
311 |
|
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DO i=iMin,iMax |
312 |
adcroft |
1.1 |
iB = iB + 1 |
313 |
jmc |
1.14 |
array(i,j,k,bi,bj) = |
314 |
|
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& array(i,j,k,bi,bj) + northRecvBuf_RX(iB,eBl,bi,bj) |
315 |
adcroft |
1.1 |
ENDDO |
316 |
|
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ENDDO |
317 |
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ENDDO |
318 |
|
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ELSEIF ( northCommMode .EQ. COMM_GET ) THEN |
319 |
jmc |
1.14 |
DO k=1,myNz |
320 |
adcroft |
1.1 |
iB = iB0 |
321 |
jmc |
1.14 |
DO j=jMin,jMax |
322 |
adcroft |
1.1 |
iB = iB+1 |
323 |
jmc |
1.14 |
DO i=iMin,iMax |
324 |
|
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array(i,j,k,bi,bj) = |
325 |
|
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& array(i,j,k,bi,bj) + array(i,iB,k,biN,bjN) |
326 |
|
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array(i,iB,k,biN,bjN) = 0.0 |
327 |
adcroft |
1.1 |
ENDDO |
328 |
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ENDDO |
329 |
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ENDDO |
330 |
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ENDIF |
331 |
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ENDIF |
332 |
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|
333 |
|
|
IF ( _theSimulationMode .EQ. FORWARD_SIMULATION ) THEN |
334 |
|
|
jMin = 1-exchWidthY |
335 |
|
|
jMax = 0 |
336 |
|
|
iB0 = sNy-exchWidthY |
337 |
jmc |
1.14 |
IF ( southCommMode .EQ. COMM_PUT |
338 |
|
|
& .OR. southCommMode .EQ. COMM_MSG ) THEN |
339 |
adcroft |
1.1 |
iB = 0 |
340 |
jmc |
1.14 |
DO k=1,myNz |
341 |
|
|
DO j=jMin,jMax |
342 |
|
|
DO i=iMin,iMax |
343 |
adcroft |
1.1 |
iB = iB + 1 |
344 |
jmc |
1.14 |
array(i,j,k,bi,bj) = southRecvBuf_RX(iB,eBl,bi,bj) |
345 |
adcroft |
1.1 |
ENDDO |
346 |
|
|
ENDDO |
347 |
|
|
ENDDO |
348 |
|
|
ELSEIF ( southCommMode .EQ. COMM_GET ) THEN |
349 |
jmc |
1.14 |
DO k=1,myNz |
350 |
adcroft |
1.1 |
iB = iB0 |
351 |
jmc |
1.14 |
DO j=jMin,jMax |
352 |
adcroft |
1.1 |
iB = iB+1 |
353 |
jmc |
1.14 |
DO i=iMin,iMax |
354 |
|
|
array(i,j,k,bi,bj) = array(i,iB,k,biS,bjS) |
355 |
adcroft |
1.1 |
ENDDO |
356 |
|
|
ENDDO |
357 |
|
|
ENDDO |
358 |
|
|
ENDIF |
359 |
|
|
ELSEIF ( _theSimulationMode .EQ. REVERSE_SIMULATION ) THEN |
360 |
|
|
jMin = 1 |
361 |
|
|
jMax = 1+exchWidthY-1 |
362 |
|
|
iB0 = sNy |
363 |
jmc |
1.14 |
IF ( southCommMode .EQ. COMM_PUT |
364 |
|
|
& .OR. southCommMode .EQ. COMM_MSG ) THEN |
365 |
adcroft |
1.1 |
iB = 0 |
366 |
jmc |
1.14 |
DO k=1,myNz |
367 |
|
|
DO j=jMin,jMax |
368 |
|
|
DO i=iMin,iMax |
369 |
adcroft |
1.1 |
iB = iB + 1 |
370 |
jmc |
1.14 |
array(i,j,k,bi,bj) = |
371 |
|
|
& array(i,j,k,bi,bj) + southRecvBuf_RX(iB,eBl,bi,bj) |
372 |
adcroft |
1.1 |
ENDDO |
373 |
|
|
ENDDO |
374 |
|
|
ENDDO |
375 |
|
|
ELSEIF ( southCommMode .EQ. COMM_GET ) THEN |
376 |
jmc |
1.14 |
DO k=1,myNz |
377 |
adcroft |
1.1 |
iB = iB0 |
378 |
jmc |
1.14 |
DO j=jMin,jMax |
379 |
adcroft |
1.1 |
iB = iB+1 |
380 |
jmc |
1.14 |
DO i=iMin,iMax |
381 |
|
|
array(i,j,k,bi,bj) = |
382 |
|
|
& array(i,j,k,bi,bj) + array(i,iB,k,biS,bjS) |
383 |
|
|
array(i,iB,k,biS,bjS) = 0.0 |
384 |
adcroft |
1.1 |
ENDDO |
385 |
|
|
ENDDO |
386 |
|
|
ENDDO |
387 |
|
|
ENDIF |
388 |
|
|
ENDIF |
389 |
jmc |
1.14 |
|
390 |
adcroft |
1.1 |
ENDDO |
391 |
|
|
ENDDO |
392 |
|
|
|
393 |
|
|
RETURN |
394 |
|
|
END |