spmd_sd_gaug.F

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C
!||====================================================================
!||    spmd_sd_gaug          ../engine/source/mpi/output/spmd_sd_gaug.f
!||--- called by ------------------------------------------------------
!||    agauge                ../engine/source/ale/agauge.f
!||--- calls      -----------------------------------------------------
!||--- uses       -----------------------------------------------------
!||    spmd_comm_world_mod   ../engine/source/mpi/spmd_comm_world.F90
!||====================================================================
      SUBROUTINE spmd_sd_gaug(LGAUGE,GAUGE,IGAUP,NGAUP)
C envoi vers p0 du tableau GAUGE calcule sur chaque proc
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      "com04_c.inc"
#include      "task_c.inc"
#include      "param_c.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER LGAUGE(3,*), IGAUP(*), NGAUP(*)
      my_real gauge(llgauge,*)
C-----------------------------------------------
C   L o c a l  V a r i a b l e s
C-----------------------------------------------
#ifdef MPI
      INTEGER MSGTYP,MSGOFF,IERROR,LOC_PROC,NN,L,I,K,N,II,J,
     .        IDEB,SIZ,A_AR,NBIRECV,INDEX,
     .        IRINDEX(NSPMD),REQ_R(NSPMD),IAD_RECV(NSPMD),
     .        STATUS(MPI_STATUS_SIZE)
      my_real
     .        buf(llgauge+1,nbgauge*nspmd) ,alpha ,alpha0
      DATA msgoff/203/
C-----------------------------------------------
C   S o u r c e  L i n e s
C-----------------------------------------------
      loc_proc = ispmd + 1
      IF (loc_proc==1) THEN
        ideb = 1
        nbirecv = 0
        DO i = 2, nspmd
            iad_recv(i) = ideb
            nbirecv = nbirecv + 1
            irindex(nbirecv) = i
            nn = nbgauge
            siz = (llgauge+1)*nn
            msgtyp = msgoff 
            CALL mpi_irecv(
     s        buf(1,ideb),siz,real,it_spmd(i),msgtyp,
     g        spmd_comm_world,req_r(nbirecv),ierror)
              ideb = ideb + nn
        END DO
C
        DO ii = 1, nbirecv
          CALL mpi_waitany(nbirecv,req_r,index,status,ierror)
          i = irindex(index)
          l = iad_recv(i)
          nn = nbgauge
          DO n = l, l+nn-1
            k = nint(buf(1,n))
            IF(lgauge(1,k) <= 0 .AND. lgauge(1,k) >= -numels)THEN
              alpha0 = gauge(5,k)
              alpha  = buf(5+1,n)
              IF(alpha > alpha0)THEN
                gauge(5,k) = alpha
                DO j = 30, 33
                  gauge(j,k) = buf(j+1,n)
                END DO
C a voir plus tard  si (ALPHA == ALPHA0)
              ENDIF
             ENDIF
          END DO
        END DO
C
      ELSE
        k = 0
        DO n = 1, nbgauge
cc         IF(IGAUP(N)==LOC_PROC)THEN
           k = k + 1
           buf(1,k) = n
           DO j = 1, llgauge
             buf(j+1,k) = gauge(j,n)
           END DO
cc         ENDIF
        END DO
cc        IF(K > 0) THEN
         siz = (llgauge+1)*k
         msgtyp=msgoff
         CALL mpi_send(
     s      buf,siz,real,it_spmd(1),msgtyp,
     g      spmd_comm_world,ierror)
cc        ENDIF
      END IF
C
#endif
      RETURN
      END