spmd_frwall_nn.F

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C
!||====================================================================
!||    spmd_frwall_nn        ../engine/source/mpi/kinematic_conditions/spmd_frwall_nn.F
!||--- called by ------------------------------------------------------
!||    sms_build_diag        ../engine/source/ams/sms_build_diag.F
!||    sms_ini_kin_1         ../engine/source/ams/sms_init.F
!||--- calls      -----------------------------------------------------
!||--- uses       -----------------------------------------------------
!||    spmd_comm_world_mod   ../engine/source/mpi/spmd_comm_world.F90
!||====================================================================
      SUBROUTINE spmd_frwall_nn(FR_WALL,IWADD)
C 
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 FR_WALL(NSPMD+2), IWADD
C-----------------------------------------------
C   L o c a l  V a r i a b l e s
C-----------------------------------------------
#ifdef MPI
      INTEGER MSGOFF,MSGOFF2,MSGTYP,INFO,P,PMAIN, LOC_PROC, J, LEN
      DATA msgoff/112/
      DATA msgoff2/113/
      INTEGER STATUS(MPI_STATUS_SIZE),IERROR
      INTEGER ITMP
C-----------------------------------------------
C   S o u r c e  L i n e s
C-----------------------------------------------
      len=1
C
      pmain = fr_wall(nspmd+2)
      loc_proc = ispmd+1
      IF(loc_proc==pmain) THEN
        DO p = 1, nspmd
          IF(loc_proc/=p.AND.fr_wall(p)/=0)THEN
            msgtyp = msgoff
            CALL mpi_recv(itmp  ,len           ,mpi_integer,it_spmd(p),
     .                    msgtyp,spmd_comm_world,status,ierror    )
C
            iwadd = iwadd + itmp
          ENDIF
        ENDDO
C
        DO p = 1, nspmd
          IF(loc_proc/=p.AND.fr_wall(p)/=0)THEN
            msgtyp = msgoff2
            CALL mpi_send(iwadd ,len           ,mpi_integer,it_spmd(p),
     .                    msgtyp,spmd_comm_world,ierror)
          ENDIF
        ENDDO
C
      ELSE
        msgtyp = msgoff
        CALL mpi_send(iwadd ,len          ,mpi_integer,it_spmd(pmain),
     .                msgtyp,spmd_comm_world,ierror)
        msgtyp = msgoff2
        CALL mpi_recv(iwadd ,len          ,mpi_integer,it_spmd(pmain),
     .                msgtyp,spmd_comm_world,status,ierror    )
      ENDIF
C
#endif
      RETURN
      END