spmd_h3d_gather_t_node.F

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!||====================================================================
!||    spmd_h3d_gather_t_node   ../engine/source/output/h3d/spmd/spmd_h3d_gather_t_node.F
!||--- called by ------------------------------------------------------
!||    genh3d                   ../engine/source/output/h3d/h3d_results/genh3d.F
!||--- calls      -----------------------------------------------------
!||--- uses       -----------------------------------------------------
!||    spmd_comm_world_mod      ../engine/source/mpi/spmd_comm_world.F90
!||====================================================================
       SUBROUTINE spmd_h3d_gather_t_node(WEIGHT,V,LEN,VP0,LENP0)
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"
#include "spmd.inc"
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
#include      "task_c.inc"
#include      "com01_c.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
       INTEGER LEN,LENP0,WEIGHT(*)
       my_real
     .   v(len),vp0(lenp0),v_tmp(len)
 
C-----------------------------------------------
C   L O C A L   V A R I A B L E S
C-----------------------------------------------
       INTEGER IAD,J,LEN_TMP
#ifdef MPI
      INTEGER IERROR,
     .        I,LENP(NSPMD),DISP(NSPMD)
 
 
 
        j = 0
        DO i=1,len/6
          IF(weight(i) == 1) THEN
            v_tmp(j+1) = v(6*(i-1)+1)
            v_tmp(j+2) = v(6*(i-1)+2)
            v_tmp(j+3) = v(6*(i-1)+3)
            v_tmp(j+4) = v(6*(i-1)+4)
            v_tmp(j+5) = v(6*(i-1)+5)
            v_tmp(j+6) = v(6*(i-1)+6)
            j = j + 6
          ENDIF
        ENDDO
        len_tmp = j
         
        CALL mpi_gather(
     s    len_tmp       ,1     ,mpi_integer,
     r    lenp          ,1     ,mpi_integer,it_spmd(1),
     g    spmd_comm_world,ierror)
C
        iad=0
        IF(ispmd == 0)THEN
          DO i=1,nspmd
            disp(i) = iad
            iad = iad+lenp(i)
          END DO
        END IF
C
        CALL mpi_gatherv(
     s    v_tmp         ,len_tmp ,real,
     r    vp0           ,lenp  ,disp,real,it_spmd(1),
     g    spmd_comm_world,ierror)
#endif
       RETURN
       END