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C $Header: /u/gcmpack/MITgcm/pkg/exch2/exch2_send_rx1.template,v 1.10 2009/05/20 21:01:45 jmc Exp $ |
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C $Name: $ |
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|
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#include "CPP_EEOPTIONS.h" |
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#include "W2_OPTIONS.h" |
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CBOP 0 |
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C !ROUTINE: EXCH2_AD_PUT_RX1 |
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C !INTERFACE: |
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SUBROUTINE EXCH2_AD_PUT_RX1 ( |
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I tIlo, tIhi, tiStride, |
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I tJlo, tJhi, tjStride, |
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I tKlo, tKhi, tkStride, |
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I thisTile, nN, |
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I e2BufrRecSize, |
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I e2Bufr1_RX, |
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U array, |
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I i1Lo, i1Hi, j1Lo, j1Hi, k1Lo, k1Hi, |
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O e2_msgHandle, |
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I commSetting, myThid ) |
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|
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C !DESCRIPTION: |
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C--------------- |
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C AD: IMPORTANT: all comments (exept AD:) are taken from the Forward S/R |
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C AD: and need to be interpreted in the reverse sense: put <-> get, |
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C AD: send <-> recv, source <-> target ... |
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C--------------- |
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C Scalar field (1 component) Exchange: |
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C Put into buffer exchanged data from this source tile. |
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C Those data are intedended to fill-in the |
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C target-neighbour-edge overlap region. |
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|
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C !USES: |
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IMPLICIT NONE |
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|
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#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "W2_EXCH2_SIZE.h" |
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#include "W2_EXCH2_TOPOLOGY.h" |
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|
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C !INPUT/OUTPUT PARAMETERS: |
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C === Routine arguments === |
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C tIlo, tIhi :: index range in I that will be filled in target "array" |
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C tIstride :: index step in I that will be filled in target "array" |
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C tJlo, tJhi :: index range in J that will be filled in target "array" |
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C tJstride :: index step in J that will be filled in target "array" |
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C tKlo, tKhi :: index range in K that will be filled in target "array" |
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C tKstride :: index step in K that will be filled in target "array" |
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C thisTile :: sending tile Id. number |
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C nN :: Neighbour entry that we are processing |
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C e2BufrRecSize :: Number of elements in each entry of e2Bufr1_RX |
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C e2Bufr1_RX :: Data transport buffer array. This array is used in one of |
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C :: two ways. For PUT communication the entry in the buffer |
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C :: associated with the source for this receive (determined |
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C :: from the opposing_send index) is read. |
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C :: For MSG communication the entry in the buffer associated |
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C :: with this neighbor of this tile is used as a receive |
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C :: location for loading a linear stream of bytes. |
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C array :: Source array where the data come from |
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C i1Lo, i1Hi :: I coordinate bounds of target array |
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C j1Lo, j1Hi :: J coordinate bounds of target array |
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C k1Lo, k1Hi :: K coordinate bounds of target array |
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C e2_msgHandles :: Synchronization and coordination data structure used to |
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C :: coordinate access to e2Bufr1_RX or to regulate message |
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C :: buffering. In PUT communication sender will increment |
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C :: handle entry once data is ready in buffer. Receiver will |
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C :: decrement handle once data is consumed from buffer. |
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C :: For MPI MSG communication MPI_Wait uses hanlde to check |
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C :: Isend has cleared. This is done in routine after receives. |
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C commSetting :: Mode of communication used to exchange with this neighbor |
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C myThid :: my Thread Id. number |
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|
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INTEGER tILo, tIHi, tiStride |
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INTEGER tJLo, tJHi, 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 thisTile, nN |
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INTEGER e2BufrRecSize |
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_RX e2Bufr1_RX( e2BufrRecSize ) |
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_RX array(i1Lo:i1Hi,j1Lo:j1Hi,k1Lo:k1Hi) |
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INTEGER e2_msgHandle(1) |
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CHARACTER commSetting |
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INTEGER myThid |
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CEOP |
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|
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C !LOCAL VARIABLES: |
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C == Local variables == |
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C itl,jtl,ktl :: Loop counters |
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C :: itl etc... target local |
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C :: itc etc... target canonical |
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C :: isl etc... source local |
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C :: isc etc... source canonical |
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C tgT :: Target tile Id. number |
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C itb, jtb :: Target local to canonical offsets |
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C iBufr :: number of buffer elements to transfert |
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INTEGER itl, jtl, ktl |
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INTEGER itc, jtc |
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INTEGER isc, jsc |
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INTEGER isl, jsl |
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INTEGER tgT |
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INTEGER itb, jtb |
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INTEGER isb, jsb |
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INTEGER pi(2), pj(2), oi, oj |
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INTEGER iBufr |
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#ifdef W2_E2_DEBUG_ON |
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CHARACTER*(MAX_LEN_MBUF) msgBuf |
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#endif |
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c IF ( commSetting .EQ. 'P' ) THEN |
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C AD: 1 Need to check and spin on data ready assertion for multithreaded mode, |
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C AD: for now, ensure global sync using barrier. |
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C AD: 2 get directly data from 1rst level buffer (sLv=1); |
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c ENDIF |
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|
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tgT = exch2_neighbourId(nN, thisTile ) |
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itb = exch2_tBasex(tgT) |
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jtb = exch2_tBasey(tgT) |
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isb = exch2_tBasex(thisTile) |
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jsb = exch2_tBasey(thisTile) |
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pi(1)=exch2_pij(1,nN,thisTile) |
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pi(2)=exch2_pij(2,nN,thisTile) |
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pj(1)=exch2_pij(3,nN,thisTile) |
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pj(2)=exch2_pij(4,nN,thisTile) |
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oi = exch2_oi(nN,thisTile) |
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oj = exch2_oj(nN,thisTile) |
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#ifdef W2_E2_DEBUG_ON |
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WRITE(msgBuf,'(A,I5,A,I5)') |
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& 'EXCH2_AD_PUT_RX1 sourceTile=', thisTile, 'targetTile=', tgT |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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I SQUEEZE_BOTH, myThid ) |
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#endif /* W2_E2_DEBUG_ON */ |
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iBufr=0 |
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DO ktl=tKlo,tKhi,tKStride |
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DO jtl=tJLo, tJHi, tjStride |
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DO itl=tILo, tIHi, tiStride |
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iBufr=iBufr+1 |
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itc = itl+itb |
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jtc = jtl+jtb |
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isc = pi(1)*itc+pi(2)*jtc+oi |
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jsc = pj(1)*itc+pj(2)*jtc+oj |
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isl = isc-isb |
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jsl = jsc-jsb |
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#ifdef W2_E2_DEBUG_ON |
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WRITE(msgBuf,'(A,2I5)') |
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& 'EXCH2_AD_PUT_RX1 target t(itl,jtl) =', itl, jtl |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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I SQUEEZE_RIGHT, myThid ) |
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WRITE(msgBuf,'(A,2I5)') |
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& ' source (isl,jsl) =', isl, jsl |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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I SQUEEZE_RIGHT, myThid ) |
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IF ( isl .LT. i1Lo .OR. isl .GT. i1Hi ) THEN |
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WRITE(msgBuf,'(A,2I5)') |
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& ' *** isl is out of bounds' |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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I SQUEEZE_RIGHT, myThid ) |
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ENDIF |
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IF ( jsl .LT. j1Lo .OR. jsl .GT. j1Hi ) THEN |
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WRITE(msgBuf,'(A,2I5)') |
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& ' *** jsl is out of bounds' |
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CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
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I SQUEEZE_RIGHT, myThid ) |
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ENDIF |
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#endif /* W2_E2_DEBUG_ON */ |
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#ifdef W2_USE_E2_SAFEMODE |
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IF ( iBufr .GT. e2BufrRecSize ) THEN |
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C Ran off end of buffer. This should not happen |
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STOP 'EXCH2_AD_PUT_RX1:: E2BUFR LIMIT EXCEEDED' |
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ENDIF |
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IF ( isl .LT. i1Lo .OR. isl .GT. i1Hi ) THEN |
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C Forward mode send getting from points outside of the |
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C tiles exclusive domain bounds in X. This should not happen |
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STOP 'EXCH2_AD_PUT_RX1:: ISL OUTSIDE TILE EXCLUSIVE DOMAIN' |
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ENDIF |
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IF ( jsl .LT. j1Lo .OR. jsl .GT. j1Hi ) THEN |
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C Forward mode send getting from points outside of the |
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C tiles exclusive domain bounds in Y. This should not happen |
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STOP 'EXCH2_AD_PUT_RX1:: JSL OUTSIDE TILE EXCLUSIVE DOMAIN' |
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ENDIF |
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#endif /* W2_USE_E2_SAFEMODE */ |
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array(isl,jsl,ktl) = array(isl,jsl,ktl) + e2Bufr1_RX(iBufr) |
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e2Bufr1_RX(iBufr) = 0. _d 0 |
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ENDDO |
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ENDDO |
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ENDDO |
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|
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RETURN |
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END |
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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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