Broadcasts a datum to all processes.
MPI mapping mpi_bcast
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
real(kind=real_8) | :: | msg |
Datum to broadcast |
|||
integer | :: | source |
Processes which broadcasts Message passing environment identifier |
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integer | :: | gid |
Processes which broadcasts Message passing environment identifier |
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integer, | intent(inout) | :: | request |
SUBROUTINE mp_ibcast_d (msg, source, gid, request)
!! Broadcasts a datum to all processes.
!!
!! MPI mapping
!! mpi_bcast
REAL(kind=real_8) :: msg
!! Datum to broadcast
INTEGER :: source, gid
!! Processes which broadcasts
!! Message passing environment identifier
INTEGER, INTENT(INOUT) :: request
CHARACTER(LEN=*), PARAMETER :: routineN = 'mp_ibcast_d'
INTEGER :: handle, ierr, msglen
ierr = 0
CALL timeset(routineN, handle)
msglen = 1
#if defined(__parallel)
CALL mpi_ibcast(msg, msglen, MPI_DOUBLE_PRECISION, source, gid, request, ierr)
IF (ierr /= 0) CALL mp_stop(ierr, "mpi_ibcast @ "//routineN)
CALL add_perf(perf_id=22, msg_size=msglen*real_8_size)
#else
MARK_USED(msg)
MARK_USED(source)
MARK_USED(gid)
request = mp_request_null
#endif
CALL timestop(handle)
END SUBROUTINE mp_ibcast_d