spmd_iget_partn.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_iget_partn (size, nbf_l, np, nbpart, iadg, srbuf, iflag)

Function/Subroutine Documentation

spmd_iget_partn()

subroutine spmd_iget_partn	(	integer	size,
		integer	nbf_l,
		integer, dimension(*)	np,
		integer	nbpart,
		integer, dimension(nspmd,*)	iadg,
		integer	srbuf,
		integer	iflag )

Definition at line 49 of file spmd_iget_partn.F.

C gather on p0 of the wa array according to the parts (IADG)
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 NBF_L, NP(*),IADG(NSPMD,*),SIZE
      INTEGER  NBPART, IFLAG,SRBUF
C-----------------------------------------------
C   L o c a l  V a r i a b l e s
C-----------------------------------------------
#ifdef MPI
      INTEGER MSGOFF,MSGTYP,IDEB,K,N,NB_TMP,LEN,IADP(NSPMD)
 
      INTEGER STATUS(MPI_STATUS_SIZE),IERROR
      INTEGER, DIMENSION(:),ALLOCATABLE :: RBUF
      DATA msgoff/7029/
C-----------------------------------------------
C   S o u r c e  L i n e s
C-----------------------------------------------
C     Bug here: The actual recieve buffer size is not the same 
C     as the size written. Removing the initialization to -HUGE(IERROR)
C     will cause valgrind errors about uninitialized memory.
      ALLOCATE(rbuf(srbuf+1))
      rbuf(1:srbuf) = -huge(ierror)
 
      IF (ispmd/=0) THEN
        msgtyp= msgoff
 
        CALL mpi_send(np,nbf_l,mpi_integer,it_spmd(1),msgtyp,
     .                spmd_comm_world,ierror)
 
      ELSE
        DO k=1,nbf_l
           rbuf(k) = np(k)
        ENDDO
        ideb = nbf_l +  1
        iadp(1) = 1
C
      DO k=2,nspmd
        iadp(k) = ideb
        msgtyp= msgoff
 
         CALL mpi_probe(it_spmd(k),msgtyp,
     .                   spmd_comm_world,status,ierror)
         CALL mpi_get_count(status,mpi_integer,nb_tmp,ierror)
 
         CALL mpi_recv(rbuf(ideb),nb_tmp,mpi_integer,it_spmd(k),msgtyp,
     .                  spmd_comm_world,status,ierror)
 
        ideb = ideb + nb_tmp
        END DO
C
        DO n = 1, nbpart
          DO k = 1, nspmd
            IF (n>1) THEN
              len = (iadg(k,n) - iadg(k,n-1))*SIZE
            ELSE
              len = iadg(k,n)*SIZE
            ENDIF
 
            IF (iflag==1) THEN
              IF(len>0)CALL write_i_c(rbuf(iadp(k)),len)
            ELSEIF(iflag==2) THEN
              IF(len>0)CALL write_c_c(rbuf(iadp(k)),len)
            ENDIF
            iadp(k) = iadp(k) + len
          ENDDO
        ENDDO
      ENDIF
C
      DEALLOCATE(rbuf)
#endif
      RETURN