c08f97b030
BIND(C) doesn't let us have LOGICAL parameters, so we have to be
creative in how we invoke back-end ompi_*_f() C functions.
Additionally, the mpi_f08 type for MPI_Status presented some
difficulties, too.
See the large comment in
ompi/mpi/fortran/use-mpi-f08/mpi-f-interfaces-bind.h that explains
this in much more detail.
This commit was SVN r29384.
26 строки
905 B
Fortran
26 строки
905 B
Fortran
! -*- f90 -*-
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!
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! Copyright (c) 2010-2013 Cisco Systems, Inc. All rights reserved.
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! Copyright (c) 2009-2012 Los Alamos National Security, LLC.
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! All rights reserved.
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! $COPYRIGHT$
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#include "ompi/mpi/fortran/configure-fortran-output.h"
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subroutine MPI_Op_create_f08(user_fn,commute,op,ierror)
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use :: mpi_f08_types, only : MPI_Op
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use :: mpi_f08_interfaces_callbacks, only : MPI_User_function
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! See note in mpi-f-interfaces-bind.h for why we "use mpi" here and
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! call a PMPI_* subroutine below.
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use :: mpi, only : PMPI_Op_create
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implicit none
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OMPI_PROCEDURE(MPI_User_function) :: user_fn
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LOGICAL, INTENT(IN) :: commute
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TYPE(MPI_Op), INTENT(OUT) :: op
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INTEGER, OPTIONAL, INTENT(OUT) :: ierror
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integer :: c_ierror
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call PMPI_Op_create(user_fn,commute,op%MPI_VAL,c_ierror)
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if (present(ierror)) ierror = c_ierror
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end subroutine MPI_Op_create_f08
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