spmd_exch_vol.F File Reference

#include "implicit_f.inc"
#include "spmd.inc"
#include "com01_c.inc"
#include "task_c.inc"

Go to the source code of this file.

Functions/Subroutines
subroutine	spmd_exch_vol (volnod6, varnod6, iad_elem, fr_elem, lenr)

Function/Subroutine Documentation

spmd_exch_vol()

subroutine spmd_exch_vol	(	double precision, dimension(6,*)	volnod6,
		double precision, dimension(6,*)	varnod6,
		integer, dimension(2,*)	iad_elem,
		integer, dimension(*)	fr_elem,
		integer	lenr )

Definition at line 33 of file spmd_exch_vol.F.

C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
        USE spmd_comm_world_mod, ONLY : spmd_comm_world
#include      "implicit_f.inc"
C-----------------------------------------------
C   M e s s a g e   P a s s i n g
C-----------------------------------------------
#include "spmd.inc"
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
#include      "com01_c.inc"
#include      "task_c.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER IAD_ELEM(2,*),FR_ELEM(*),LENR
      double precision
     .        volnod6(6,*), varnod6(6,*)
C-----------------------------------------------
C   L o c a l  V a r i a b l e s
C-----------------------------------------------
#ifdef mpi
      INTEGER MSGTYP,I,NOD,LOC_PROC,IERROR,MSGOFF,
     .        SIZ,J,L,NB_NOD,SIZ6,LEN,
     .        STATUS(MPI_STATUS_SIZE),
     .        IAD_SEND(NSPMD+1),
     .        IAD_RECV(NSPMD+1),
     .        REQ_R(NSPMD),REQ_S(NSPMD)
      DATA msgoff/231/
 
      DOUBLE PRECISION,
     . DIMENSION(:,:),ALLOCATABLE :: RBUF, SBUF 
C-----------------------------------------------
C   S o u r c e  L i n e s
C-----------------------------------------------
      ALLOCATE(rbuf(6,lenr))
      ALLOCATE(sbuf(6,lenr))
 
      loc_proc = ispmd + 1
      siz6 = 6
 
      l = 1
      iad_recv(1)  = 1
 
      DO i=1,nspmd
        len = iad_elem(1,i+1)-iad_elem(1,i)
        siz = siz6 * 2 * len
        IF(siz/=0)THEN
          msgtyp = msgoff
          CALL mpi_irecv(
     s      rbuf(1,l),siz,mpi_double_precision,
     g      it_spmd(i),msgtyp,spmd_comm_world,
     h      req_r(i),ierror)
          l = l  + 2*len
        ENDIF
        iad_recv(i+1)  = l
      END DO
 
      l  = 1
      iad_send(1)  = l
 
      DO i=1,nspmd
        nb_nod = iad_elem(1,i+1)-iad_elem(1,i)
#include      "vectorize.inc"
        DO j=iad_elem(1,i),iad_elem(1,i+1)-1
          nod = fr_elem(j)
c
          sbuf(1, l)   =  volnod6(1,nod)
          sbuf(2, l)   =  volnod6(2,nod)
          sbuf(3, l)   =  volnod6(3,nod)
          sbuf(4, l)   =  volnod6(4,nod)
          sbuf(5, l)   =  volnod6(5,nod)
          sbuf(6, l)   =  volnod6(6,nod)
c
          sbuf(1, l+ nb_nod)   =  varnod6(1,nod)
          sbuf(2, l+ nb_nod)   =  varnod6(2,nod)
          sbuf(3, l+ nb_nod)   =  varnod6(3,nod)
          sbuf(4, l+ nb_nod)   =  varnod6(4,nod)
          sbuf(5, l+ nb_nod)   =  varnod6(5,nod)
          sbuf(6, l+ nb_nod)   =  varnod6(6,nod)
c
          l  = l  + 1
        END DO
 
        l  = l  + nb_nod
        iad_send(i+1)  = l
      ENDDO
C
C   echange messages
C
      DO i=1,nspmd
C--------------------------------------------------------------------
C envoi a N+I mod P
       nb_nod = iad_elem(1,i+1)-iad_elem(1,i)
       IF(nb_nod>0)THEN
          msgtyp = msgoff 
          len = iad_elem(1,i+1)-iad_elem(1,i)
 
          siz = len * 2 * siz6       
          l = iad_send(i)
          CALL mpi_isend(
     s      sbuf(1,l),siz,mpi_double_precision,
     g      it_spmd(i),msgtyp,spmd_comm_world,
     h      req_s(i),ierror)
       ENDIF
C--------------------------------------------------------------------
      ENDDO
C
C decompactage
C
      DO i = 1, nspmd
        nb_nod = iad_elem(1,i+1)-iad_elem(1,i)
        IF(nb_nod>0)THEN
          CALL mpi_wait(req_r(i),status,ierror)
          l  = iad_recv(i)
 
#include        "vectorize.inc"
          DO j=iad_elem(1,i),iad_elem(1,i+1)-1
            nod = fr_elem(j)
            volnod6(1,nod) = volnod6(1,nod) + rbuf(1,l)
            volnod6(2,nod) = volnod6(2,nod) + rbuf(2,l)
            volnod6(3,nod) = volnod6(3,nod) + rbuf(3,l)
            volnod6(4,nod) = volnod6(4,nod) + rbuf(4,l)
            volnod6(5,nod) = volnod6(5,nod) + rbuf(5,l)
            volnod6(6,nod) = volnod6(6,nod) + rbuf(6,l)
c
            varnod6(1,nod) = varnod6(1,nod) + rbuf(1,l+ nb_nod) 
            varnod6(2,nod) = varnod6(2,nod) + rbuf(2,l+ nb_nod) 
            varnod6(3,nod) = varnod6(3,nod) + rbuf(3,l+ nb_nod) 
            varnod6(4,nod) = varnod6(4,nod) + rbuf(4,l+ nb_nod) 
            varnod6(5,nod) = varnod6(5,nod) + rbuf(5,l+ nb_nod) 
            varnod6(6,nod) = varnod6(6,nod) + rbuf(6,l+ nb_nod) 
c
            l  = l  + 1
          END DO
        ENDIF
      END DO
C
C   wait terminaison isend
C
      DO i = 1, nspmd
        IF(iad_elem(1,i+1)-iad_elem(1,i)>0)THEN
          CALL mpi_wait(req_s(i),status,ierror)
        ENDIF
      ENDDO
C
#endif
      RETURN