spmd_exch_fr6.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_fr6 (fr, fs6, len)

Function/Subroutine Documentation

spmd_exch_fr6()

subroutine spmd_exch_fr6	(	integer, dimension(*)	fr,
		double precision, dimension(len)	fs6,
		integer	len )

Definition at line 51 of file spmd_exch_fr6.F.

C cumul force sur frontiere en parith/on
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 LEN, FR(*)
      DOUBLE PRECISION FS6(LEN)
C-----------------------------------------------
C   L o c a l  V a r i a b l e s
C-----------------------------------------------
#ifdef MPI
      INTEGER MSGOFF,MSGTYP,P,PMAIN, LOC_PROC, J, L,
     .        IDEB, NBINDEX, INDEX, REQ(NSPMD-1)
      DATA msgoff/162/
      INTEGER STATUS(MPI_STATUS_SIZE),IERROR
      DOUBLE PRECISION FTMP(LEN*(NSPMD-1))
C-----------------------------------------------
C   S o u r c e  L i n e s
C-----------------------------------------------
      pmain = fr(nspmd+2)
      loc_proc = ispmd+1
      IF(loc_proc==pmain) THEN
        ideb = 1
        l = 0
        DO p = 1, nspmd
          IF(loc_proc/=p.AND.fr(p)/=0)THEN
            l=l+1
C           INDEXI(L)=P
            msgtyp = msgoff
            CALL mpi_irecv(ftmp(ideb)  ,len ,mpi_double_precision,it_spmd(p),
     .                    msgtyp,spmd_comm_world,req(l),ierror    )
            ideb = ideb + len
          END IF
        END DO
        nbindex = l
C
        DO l = 1, nbindex
          CALL mpi_waitany(nbindex,req,index,status,ierror)
C            P = INDEXI(INDEX)
          ideb = len*(index-1)
          DO j = 1, len
            fs6(j) = fs6(j) + ftmp(ideb+j)
          END DO
        ENDDO
C
        DO p = 1, nspmd
          IF(loc_proc/=p.AND.fr(p)/=0)THEN
            msgtyp = msgoff 
            CALL mpi_send(fs6   ,len ,mpi_double_precision,it_spmd(p),
     .                    msgtyp,spmd_comm_world,ierror)
          ENDIF
        ENDDO
C
      ELSE
        IF(fr(loc_proc)/=0) THEN
          msgtyp = msgoff
          CALL mpi_send(fs6   ,len ,mpi_double_precision,it_spmd(pmain),
     .                  msgtyp,spmd_comm_world,ierror)
          CALL mpi_recv(fs6   ,len ,mpi_double_precision,it_spmd(pmain),
     .                  msgtyp,spmd_comm_world,status,ierror    )
        ENDIF
      ENDIF
C
#endif
      RETURN