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 |
|||
type(mp_comm_type), | intent(in) | :: | gid |
Message passing environment identifier |
SUBROUTINE mp_bcast_d (msg, source, gid)
!! Broadcasts a datum to all processes.
!!
!! MPI mapping
!! mpi_bcast
REAL(kind=real_8) :: msg
!! Datum to broadcast
INTEGER :: source
!! Processes which broadcasts
TYPE(mp_comm_type), INTENT(IN) :: gid
!! Message passing environment identifier
CHARACTER(LEN=*), PARAMETER :: routineN = 'mp_bcast_d'
INTEGER :: handle, ierr, msglen
ierr = 0
CALL timeset(routineN, handle)
msglen = 1
#if defined(__parallel)
CALL mpi_bcast(msg, msglen, MPI_DOUBLE_PRECISION, source, gid%handle, ierr)
IF (ierr /= 0) CALL mp_stop(ierr, "mpi_bcast @ "//routineN)
CALL add_perf(perf_id=2, msg_size=msglen*real_8_size)
#else
MARK_USED(msg)
MARK_USED(source)
MARK_USED(gid)
#endif
CALL timestop(handle)
END SUBROUTINE mp_bcast_d