mp_allgather_i34 Subroutine

private subroutine mp_allgather_i34(msgout, msgin, gid)

Gathers rank-3 data from all processes and all processes receive the same data

Arguments

TypeIntentOptionalAttributesName
integer(kind=int_4), intent(in), CONTIGUOUS:: msgout(:,:,:)

Rank-3 data to send

integer(kind=int_4), intent(out), CONTIGUOUS:: msgin(:,:,:,:)
integer, intent(in) :: gid

Contents

Source Code


Source Code

      SUBROUTINE mp_allgather_i34(msgout, msgin, gid)
      !! Gathers rank-3 data from all processes and all processes receive the
      !! same data
      !! @note see mp_allgather_i12

         INTEGER(KIND=int_4), CONTIGUOUS, INTENT(IN)        :: msgout(:, :, :)
         !! Rank-3 data to send
         INTEGER(KIND=int_4), CONTIGUOUS, INTENT(OUT)       :: msgin(:, :, :, :)
         INTEGER, INTENT(IN)                      :: gid

         CHARACTER(LEN=*), PARAMETER :: routineN = 'mp_allgather_i34'

         INTEGER                                  :: handle, ierr
#if defined(__parallel)
         INTEGER                                  :: rcount, scount
#endif

         ierr = 0
         CALL timeset(routineN, handle)

#if defined(__parallel)
         scount = SIZE(msgout(:, :, :))
         rcount = scount
         CALL MPI_ALLGATHER(msgout, scount, MPI_INTEGER, &
                            msgin, rcount, MPI_INTEGER, &
                            gid, ierr)
         IF (ierr /= 0) CALL mp_stop(ierr, "mpi_allgather @ "//routineN)
#else
         MARK_USED(gid)
         msgin(:, :, :, 1) = msgout(:, :, :)
#endif
         CALL timestop(handle)
      END SUBROUTINE mp_allgather_i34