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C $Header: /u/gcmpack/MITgcm/pkg/exch2/exch2_rx2_cube_ad.template,v 1.2 2008/07/29 20:25:23 jmc Exp $ |
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C $Name: $ |
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|
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#include "CPP_EEOPTIONS.h" |
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|
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#undef Dbg |
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|
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CBOP |
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C !ROUTINE: EXCH_RX2_CUBE |
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|
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C !INTERFACE: |
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SUBROUTINE EXCH2_RX2_CUBE_AD( |
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U array1, array2, signOption, fieldCode, |
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I myOLw, myOLe, myOLn, myOLs, myNz, |
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I exchWidthX, exchWidthY, |
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I simulationMode, cornerMode, myThid ) |
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IMPLICIT NONE |
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|
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C !DESCRIPTION: |
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|
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C !USES: |
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C == Global data == |
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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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#include "W2_EXCH2_TOPOLOGY.h" |
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#include "W2_EXCH2_PARAMS.h" |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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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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C myOLe |
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C myOLn |
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C myOLs |
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C exchWidthX :: Width of data region exchanged in X. |
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C exchWidthY :: Width of data region exchanged in Y. |
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C myThid :: Thread number of this instance of S/R EXCH... |
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LOGICAL signOption |
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CHARACTER*2 fieldCode |
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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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INTEGER exchWidthX |
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INTEGER exchWidthY |
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INTEGER simulationMode |
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INTEGER cornerMode |
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INTEGER myThid |
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_RX array1(1-myOLw:sNx+myOLe, |
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& 1-myOLs:sNy+myOLn, |
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& myNZ, nSx, nSy) |
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_RX array2(1-myOLw:sNx+myOLe, |
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& 1-myOLs:sNy+myOLn, |
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& myNZ, nSx, nSy) |
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|
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C !LOCAL VARIABLES: |
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C theSimulationMode :: Holds working copy of simulation mode |
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C theCornerMode :: Holds working copy of corner mode |
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C I,J,K :: Loop and index counters |
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INTEGER theSimulationMode |
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INTEGER theCornerMode |
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c INTEGER I,J,K |
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c INTEGER bl,bt,bn,bs,be,bw |
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INTEGER bi |
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C Variables for working through W2 topology |
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INTEGER e2_msgHandles(2,MAX_NEIGHBOURS, nSx) |
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INTEGER thisTile, farTile, N, nN, oN |
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INTEGER tIlo1, tIhi1, tJlo1, tJhi1, oIs1, oJs1 |
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INTEGER tIlo2, tIhi2, tJlo2, tJhi2, oIs2, oJs2 |
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INTEGER tIStride, tJStride |
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INTEGER tKlo, tKhi, tKStride |
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INTEGER i1Lo, i1Hi, j1Lo, j1Hi, k1Lo, k1Hi |
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INTEGER i2Lo, i2Hi, j2Lo, j2Hi, k2Lo, k2Hi |
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C == Statement function == |
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C tilemod - Permutes indices to return neighboring tile index on |
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C six face cube. |
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c INTEGER tilemod |
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|
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C MPI stuff (should be in a routine call) |
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#ifdef ALLOW_USE_MPI |
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INTEGER mpiStatus(MPI_STATUS_SIZE) |
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INTEGER mpiRc |
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INTEGER wHandle |
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#endif |
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CEOP |
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|
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theSimulationMode = simulationMode |
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theCornerMode = cornerMode |
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|
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C For now tile<->tile exchanges are sequentialised through |
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C thread 1. This is a temporary feature for preliminary testing until |
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C general tile decomposistion is in place (CNH April 11, 2001) |
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CALL BAR2( myThid ) |
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|
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C Receive messages or extract buffer copies |
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DO bi=myBxLo(myThid), myBxHi(myThid) |
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thisTile=W2_myTileList(bi) |
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nN=exch2_nNeighbours(thisTile) |
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CRG communication depends on order!!! |
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CRG DO N=1,nN |
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c DO N=nN,1,-1 |
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C- this is no longer the case after 2008-07-31 (changes in index range) |
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DO N=1,nN |
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farTile=exch2_neighbourId(N,thisTile) |
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oN=exch2_opposingSend(N,thisTile) |
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tIlo1 = exch2_iLo(N,thisTile) |
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tIhi1 = exch2_iHi(N,thisTile) |
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tJlo1 = exch2_jLo(N,thisTile) |
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tJhi1 = exch2_jHi(N,thisTile) |
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oIs1 = exch2_oi(oN,farTile) |
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oJs1 = exch2_oj(oN,farTile) |
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CALL EXCH2_GET_UV_BOUNDS( |
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I fieldCode, exchWidthX, |
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I exch2_isWedge(thisTile), exch2_isEedge(thisTile), |
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I exch2_isSedge(thisTile), exch2_isNedge(thisTile), |
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U tIlo1, tIhi1, tJlo1, tJhi1, |
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O tIlo2, tIhi2, tJlo2, tJhi2, |
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O tiStride, tjStride, |
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I exch2_pij(1,oN,farTile), |
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U oIs1, oJs1, |
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O oIs2, oJs2, |
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I myThid ) |
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tKLo=1 |
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tKHi=myNz |
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tKStride=1 |
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i1Lo = 1-myOLw |
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i1Hi = sNx+myOLe |
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j1Lo = 1-myOLs |
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j1Hi = sNy+myOLs |
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k1Lo = 1 |
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k1Hi = myNz |
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i2Lo = 1-myOLw |
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i2Hi = sNx+myOLe |
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j2Lo = 1-myOLs |
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j2Hi = sNy+myOLs |
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k2Lo = 1 |
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k2Hi = myNz |
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C Receive from neighbour N to fill my points |
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C (tIlo:tIhi:tiStride,tJlo:tJhi,tJStride,tKlo:tKhi,tKStride) |
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C in "array". |
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C Note: when transferring data within a process: |
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C o e2Bufr entry to read is entry associated with opposing send record |
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C o e2_msgHandle entry to read is entry associated with opposing send |
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C record. |
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CALL EXCH2_RECV_RX2_AD( |
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I tIlo1, tIhi1, tIlo2, tIhi2, tiStride, |
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I tJlo1, tJhi1, tJlo2, tJhi2, tjStride, |
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I tKlo, tKhi, tkStride, |
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I thisTile, bi, N, |
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I e2Bufr1_RX, e2Bufr2_RX, e2BufrRecSize, |
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I MAX_NEIGHBOURS, nSx, |
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I array1(1-myOLw,1-myOLs,1,bi,1), |
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I i1Lo, i1Hi, j1Lo, j1Hi, k1Lo, k1Hi, |
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I array2(1-myOLw,1-myOLs,1,bi,1), |
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I i2Lo, i2Hi, j2Lo, j2Hi, k2Lo, k2Hi, |
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O e2_msgHandles(1,N,bi), |
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O e2_msgHandles(2,N,bi), |
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I W2_myTileList, |
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I W2_myCommFlag(N,bi), |
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I myThid ) |
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ENDDO |
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ENDDO |
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|
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C without MPI: wait until all threads finish filling buffer |
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CALL BAR2( myThid ) |
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|
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C Post sends as messages or buffer copies |
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DO bi=myBxLo(myThid), myBxHi(myThid) |
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thisTile=W2_myTileList(bi) |
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nN=exch2_nNeighbours(thisTile) |
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DO N=1,nN |
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farTile=exch2_neighbourId(N,thisTile) |
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oN=exch2_opposingSend(N,thisTile) |
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tIlo1 = exch2_iLo(oN,farTile) |
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tIhi1 = exch2_iHi(oN,farTile) |
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tJlo1 = exch2_jLo(oN,farTile) |
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tJhi1 = exch2_jHi(oN,farTile) |
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oIs1 = exch2_oi(N,thisTile) |
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oJs1 = exch2_oj(N,thisTile) |
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CALL EXCH2_GET_UV_BOUNDS( |
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I fieldCode, exchWidthX, |
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I exch2_isWedge(farTile), exch2_isEedge(farTile), |
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I exch2_isSedge(farTile), exch2_isNedge(farTile), |
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U tIlo1, tIhi1, tJlo1, tJhi1, |
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O tIlo2, tIhi2, tJlo2, tJhi2, |
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O tiStride, tjStride, |
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I exch2_pij(1,N,thisTile), |
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U oIs1, oJs1, |
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O oIs2, oJs2, |
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I myThid ) |
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tKLo=1 |
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tKHi=myNz |
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tKStride=1 |
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i1Lo = 1-myOLw |
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i1Hi = sNx+myOLe |
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j1Lo = 1-myOLs |
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j1Hi = sNy+myOLs |
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k1Lo = 1 |
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k1Hi = myNz |
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i2Lo = 1-myOLw |
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i2Hi = sNx+myOLe |
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j2Lo = 1-myOLs |
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j2Hi = sNy+myOLs |
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k2Lo = 1 |
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k2Hi = myNz |
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C Send to neighbour N to fill neighbor points |
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C (tIlo:tIhi:tiStride,tJlo:tJhi,tJStride,tKlo:tKhi,tKStride) |
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C in its copy of "array". |
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CALL EXCH2_SEND_RX2_AD( |
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I tIlo1, tIhi1, tIlo2, tIhi2, tiStride, |
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I tJlo1, tJhi1, tJlo2, tJhi2, tjStride, |
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I tKlo, tKhi, tkStride, |
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I thisTile, N, oIs1, oJs1, oIs2, oJs2, |
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O e2Bufr1_RX(1,N,bi,1), |
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O e2Bufr2_RX(1,N,bi,1), |
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I e2BufrRecSize, |
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I array1(1-myOLw,1-myOLs,1,bi,1), |
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I i1Lo, i1Hi, j1Lo, j1Hi, k1Lo, k1Hi, |
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I array2(1-myOLw,1-myOLs,1,bi,1), |
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I i2Lo, i2Hi, j2Lo, j2Hi, k2Lo, k2Hi, |
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O e2_msgHandles(1,N,bi), |
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O e2_msgHandles(2,N,bi), |
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I W2_myCommFlag(N,bi), signOption, |
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I myThid ) |
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ENDDO |
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ENDDO |
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|
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C Clear message handles/locks |
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DO bi=1,nSx |
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thisTile=W2_myTileList(bi) |
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nN=exch2_nNeighbours(thisTile) |
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DO N=1,nN |
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C Note: In a between process tile-tile data transport using |
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C MPI the sender needs to clear an Isend wait handle here. |
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C In a within process tile-tile data transport using true |
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C shared address space/or direct transfer through commonly |
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C addressable memory blocks the receiver needs to assert |
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C that is has consumed the buffer the sender filled here. |
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farTile=exch2_neighbourId(N,thisTile) |
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IF ( W2_myCommFlag(N,bi) .EQ. 'M' ) THEN |
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#ifdef ALLOW_USE_MPI |
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wHandle = e2_msgHandles(1,N,bi) |
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CALL MPI_Wait( wHandle, mpiStatus, mpiRc ) |
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wHandle = e2_msgHandles(2,N,bi) |
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CALL MPI_Wait( wHandle, mpiStatus, mpiRc ) |
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#endif |
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ELSEIF ( W2_myCommFlag(N,bi) .EQ. 'P' ) THEN |
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ELSE |
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ENDIF |
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ENDDO |
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ENDDO |
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|
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CALL BAR2(myThid) |
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|
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RETURN |
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END |
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|
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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|
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CEH3 ;;; Local Variables: *** |
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CEH3 ;;; mode:fortran *** |
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CEH3 ;;; End: *** |
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