FIXME : Add documentation
Type | Intent | Optional | Attributes | Name | ||
---|---|---|---|---|---|---|
real, | intent(inout), | dimension (:,:) | :: | a | ||
integer, | intent(in) | :: | sub_comm |
subroutine sum_allreduce_sub_real_2array (a,sub_comm)
implicit none
real, dimension (:,:), intent (in out) :: a
integer, intent(in) :: sub_comm
# ifdef MPI
integer :: ierror
!$OMP MASTER
call time_message(.false., time_mp_collectives, ' MPI Collectives')
!$OMP END MASTER
call mpi_allreduce &
(MPI_IN_PLACE, a, size(a), mpireal, MPI_SUM, sub_comm, ierror)
!$OMP MASTER
call time_message(.false., time_mp_collectives, ' MPI Collectives')
!$OMP END MASTER
# else
UNUSED_DUMMY(sub_comm); UNUSED_DUMMY(a)
# endif
end subroutine sum_allreduce_sub_real_2array