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edhill |
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C $Header: /u/gcmpack/MITgcm/pkg/ex3/ex3_xy_rx.template,v 1.1 2005/10/16 06:55:48 edhill Exp $ |
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C $Name: $ |
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#include "EX3_OPTIONS.h" |
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C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----| |
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CBOP 0 |
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C !ROUTINE: EX3_XY_RX |
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C !INTERFACE: |
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SUBROUTINE EX3_XY_RX( |
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I gtype, |
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B phi, |
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I myThid ) |
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C !DESCRIPTION: |
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C Perform an exchange for 2D scalars located at either Arakawa mass |
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C [M|T] or vorticity [Z|V] points. |
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C !USES: |
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IMPLICIT NONE |
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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 "EX3_SIZE.h" |
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#include "EX3_PARAMS.h" |
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#include "EX3_TOPOLOGY.h" |
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C !INPUT PARAMETERS: |
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C gtype :: grid type: [M|T]=mass point, [Z|V]=vorticity point |
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C phi :: Array with overlap regions to be exchanged |
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C myThid :: My thread id. |
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CHARACTER*(*) gtype |
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_RX phi(1-OLx:sNx+OLx,1-OLy:sNy+OLy,nSx,nSy) |
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INTEGER myThid |
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CEOP |
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C !LOCAL VARIABLES: |
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INTEGER iloc,in,nN |
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CHARACTER*(MAX_LEN_MBUF) msgbuf |
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C |
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INTEGER |
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I bufftag, sendProc, recvProc, |
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I il,ih,is, jl,jh,js, kl,kh,ks, |
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I io1,jo1,ko1, |
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I idl1,idh1, jdl1,jdh1, kdl1,kdh1 |
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INTEGER |
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I i_sendtile, i_recvtile |
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LOGICAL along_i |
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CHARACTER*(1) commType |
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INTEGER msgID(nSx*nSy) |
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C |
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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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idl1 = 1-OLx |
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idh1 = sNx+OLx |
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jdl1 = 1-OLy |
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jdh1 = sNy+OLy |
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kdl1 = 1 |
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kdh1 = 1 |
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kl = 1 |
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kh = 1 |
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ks = 1 |
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commType(1:1) = 'P' |
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#ifdef ALLOW_USE_MPI |
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commType(1:1) = 'M' |
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#endif |
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C As with EXCH2, tile<->tile communication is synchronized through |
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C thread 1. |
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CALL BAR2(myThid) |
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IF (gtype(1:1) .EQ. 'M' .OR. gtype(1:1) .EQ. 'T') THEN |
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C phi is a scalar located at Arakawa mass (cell-center) points |
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C First send |
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DO iloc = myBxLo(myThid), myBxHi(myThid) |
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i_sendtile = ex3_p_itile(iloc) |
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nN = ex3_e_n(i_sendtile) |
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DO in = 1,nN |
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i_recvtile = ex3_e_iopt(in,i_sendtile) |
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CALL EX3_GET_BUFFTAG( |
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I i_sendtile, i_recvtile, in, |
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O bufftag, |
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I myThid ) |
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recvProc = ex3_t_iproc(i_recvtile) |
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C ===== I direction ===== |
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il = ex3_e_dat(2,1,in,i_sendtile) |
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IF ( ex3_e_dat(1,1,in,i_sendtile) .EQ. 0 ) THEN |
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along_i = .FALSE. |
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ih = ex3_e_dat(3,1,in,i_sendtile) |
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ELSE |
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C Here, "along" means the i dimension is perpendicular to |
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C the "seam" between the two tiles |
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along_i = .TRUE. |
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IF (IABS(ex3_e_dat(1,1,in,i_sendtile)) .EQ. 1) THEN |
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ih = il + ex3_e_dat(1,1,in,i_sendtile) * OLx |
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ELSE |
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ih = il + ex3_e_dat(3,1,in,i_sendtile) |
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ENDIF |
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ENDIF |
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is = 1 |
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IF (il .GT. ih) is = -1 |
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C ===== J direction ===== |
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jl = ex3_e_dat(2,2,in,i_sendtile) |
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IF ( ex3_e_dat(1,2,in,i_sendtile) .EQ. 0 ) THEN |
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jh = ex3_e_dat(3,2,in,i_sendtile) |
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ELSE |
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IF (IABS(ex3_e_dat(1,2,in,i_sendtile)) .EQ. 1) THEN |
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jh = jl + ex3_e_dat(1,2,in,i_sendtile) * OLy |
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ELSE |
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jh = jl + ex3_e_dat(3,2,in,i_sendtile) |
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ENDIF |
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ENDIF |
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js = 1 |
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IF (jl .GT. jh) js = -1 |
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io1 = 0 |
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jo1 = 0 |
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ko1 = 0 |
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CALL EX3_SEND_RX1( |
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I bufftag, recvProc, |
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I along_i, |
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I il,ih,is, jl,jh,js, kl,kh,ks, |
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I io1,jo1,ko1, |
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I idl1,idh1, jdl1,jdh1, kdl1,kdh1, |
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I phi, |
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C B buff, n_buff, msgID, |
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B EX3_B_RX(1,in,iloc), EX3_MAX_BL, msgID(iloc), |
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I commType, |
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I myThid ) |
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ENDDO |
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ENDDO |
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C Then receive |
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DO iloc = myBxLo(myThid), myBxHi(myThid) |
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i_recvtile = ex3_p_itile(iloc) |
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nN = ex3_e_n(i_recvtile) |
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DO in = 1,nN |
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i_sendtile = ex3_e_iopt(in,i_sendtile) |
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CALL EX3_GET_BUFFTAG( |
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I i_sendtile, i_recvtile, in, |
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O bufftag, |
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I myThid ) |
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sendProc = ex3_t_iproc(i_sendtile) |
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C ===== I direction ===== |
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il = ex3_e_dat(2,1,in,i_sendtile) |
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IF ( ex3_e_dat(1,1,in,i_sendtile) .EQ. 0 ) THEN |
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along_i = .FALSE. |
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ih = ex3_e_dat(3,1,in,i_sendtile) |
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ELSE |
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C Here, "along" means the i dimension is perpendicular to |
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C the "seam" between the two tiles |
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along_i = .TRUE. |
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IF (IABS(ex3_e_dat(1,1,in,i_sendtile)) .EQ. 1) THEN |
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ih = il + ex3_e_dat(1,1,in,i_sendtile) * OLx |
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ELSE |
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ih = il + ex3_e_dat(3,1,in,i_sendtile) |
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ENDIF |
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ENDIF |
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is = 1 |
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IF (il .GT. ih) is = -1 |
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C ===== J direction ===== |
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jl = ex3_e_dat(2,2,in,i_sendtile) |
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IF ( ex3_e_dat(1,2,in,i_sendtile) .EQ. 0 ) THEN |
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jh = ex3_e_dat(3,2,in,i_sendtile) |
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ELSE |
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IF (IABS(ex3_e_dat(1,2,in,i_sendtile)) .EQ. 1) THEN |
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jh = jl + ex3_e_dat(1,2,in,i_sendtile) * OLy |
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ELSE |
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jh = jl + ex3_e_dat(3,2,in,i_sendtile) |
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ENDIF |
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ENDIF |
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js = 1 |
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IF (jl .GT. jh) js = -1 |
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CALL EX3_RECV_RX1( |
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I bufftag, sendProc, |
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I along_i, |
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I il,ih,is, jl,jh,js, kl,kh,ks, |
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I idl1,idh1, jdl1,jdh1, kdl1,kdh1, |
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I phi, |
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C B buff, n_buff, |
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B EX3_B_RX(1,in,iloc), EX3_MAX_BL, |
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I commType, |
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I myThid ) |
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ENDDO |
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ENDDO |
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ELSEIF (gtype(1:1) .EQ. 'Z' .OR. gtype(1:1) .EQ. 'V') THEN |
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C phi is a scalar located at Arakawa vorticity (cell-corner) |
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C points |
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ELSE |
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WRITE(msgbuf,'(3a)') |
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& 'EX3_XY_RX ERROR: grid type ''', gtype(1:1), |
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& ''' is invalid -- please use one of [MTZV]' |
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CALL print_error(msgbuf, mythid) |
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STOP 'ABNORMAL END: S/R EX3_XY_RX' |
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ENDIF |
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CALL BAR2(myThid) |
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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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CEH3 ;;; Local Variables: *** |
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CEH3 ;;; mode:fortran *** |
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CEH3 ;;; End: *** |
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