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openmpi/ompi/mpi/fortran/mpif-h/testany_f.c
Jeff Squyres dd5876f74e Add optimization (i.e., avoid malloc(0)) in the (count==0) case. Just
set the correct return values and return.

This commit was SVN r27133.
2012-08-24 16:12:01 +00:00

130 строки
4.8 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2011-2012 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/mpi/fortran/mpif-h/bindings.h"
#include "ompi/mpi/fortran/base/constants.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/communicator/communicator.h"
#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILE_LAYER
#pragma weak PMPI_TESTANY = ompi_testany_f
#pragma weak pmpi_testany = ompi_testany_f
#pragma weak pmpi_testany_ = ompi_testany_f
#pragma weak pmpi_testany__ = ompi_testany_f
#pragma weak PMPI_Testany_f = ompi_testany_f
#pragma weak PMPI_Testany_f08 = ompi_testany_f
#elif OMPI_PROFILE_LAYER
OMPI_GENERATE_F77_BINDINGS (PMPI_TESTANY,
pmpi_testany,
pmpi_testany_,
pmpi_testany__,
pompi_testany_f,
(MPI_Fint *count, MPI_Fint *array_of_requests, MPI_Fint *indx, ompi_fortran_logical_t *flag, MPI_Fint *status, MPI_Fint *ierr),
(count, array_of_requests, indx, flag, status, ierr) )
#endif
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_TESTANY = ompi_testany_f
#pragma weak mpi_testany = ompi_testany_f
#pragma weak mpi_testany_ = ompi_testany_f
#pragma weak mpi_testany__ = ompi_testany_f
#pragma weak MPI_Testany_f = ompi_testany_f
#pragma weak MPI_Testany_f08 = ompi_testany_f
#endif
#if ! OPAL_HAVE_WEAK_SYMBOLS && ! OMPI_PROFILE_LAYER
OMPI_GENERATE_F77_BINDINGS (MPI_TESTANY,
mpi_testany,
mpi_testany_,
mpi_testany__,
ompi_testany_f,
(MPI_Fint *count, MPI_Fint *array_of_requests, MPI_Fint *indx, ompi_fortran_logical_t *flag, MPI_Fint *status, MPI_Fint *ierr),
(count, array_of_requests, indx, flag, status, ierr) )
#endif
#if OMPI_PROFILE_LAYER && ! OPAL_HAVE_WEAK_SYMBOLS
#include "ompi/mpi/fortran/mpif-h/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_TESTANY";
void ompi_testany_f(MPI_Fint *count, MPI_Fint *array_of_requests, MPI_Fint *indx, ompi_fortran_logical_t *flag, MPI_Fint *status, MPI_Fint *ierr)
{
MPI_Request *c_req;
MPI_Status c_status;
int i, c_ierr;
OMPI_LOGICAL_NAME_DECL(flag);
OMPI_SINGLE_NAME_DECL(indx);
/* Shortcut to avoid malloc(0) if *count==0. We're intentionally
skipping other parameter error checks. */
if (OPAL_UNLIKELY(0 == OMPI_FINT_2_INT(*count))) {
*flag = OMPI_FORTRAN_VALUE_TRUE;
*indx = OMPI_INT_2_FINT(MPI_UNDEFINED);
MPI_Status_c2f(&ompi_status_empty, status);
*ierr = OMPI_INT_2_FINT(MPI_SUCCESS);
return;
}
c_req = (MPI_Request *) malloc(OMPI_FINT_2_INT(*count) * sizeof(MPI_Request));
if (c_req == NULL) {
c_ierr = OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD,
MPI_ERR_NO_MEM,
FUNC_NAME);
if (NULL != ierr) *ierr = OMPI_INT_2_FINT(c_ierr);
return;
}
for (i = 0; i < OMPI_FINT_2_INT(*count); ++i) {
c_req[i] = MPI_Request_f2c(array_of_requests[i]);
}
c_ierr = MPI_Testany(OMPI_FINT_2_INT(*count), c_req,
OMPI_SINGLE_NAME_CONVERT(indx),
OMPI_LOGICAL_SINGLE_NAME_CONVERT(flag),
&c_status);
if (NULL != ierr) *ierr = OMPI_INT_2_FINT(c_ierr);
OMPI_SINGLE_INT_2_LOGICAL(flag);
if (MPI_SUCCESS == c_ierr) {
/* Increment index by one for fortran conventions. Note that
all Fortran compilers have FALSE==0; we just need to check
for any nonzero value (because TRUE is not always 1) */
OMPI_SINGLE_INT_2_FINT(indx);
if (*flag &&
MPI_UNDEFINED != *(OMPI_SINGLE_NAME_CONVERT(indx))) {
array_of_requests[OMPI_INT_2_FINT(*indx)] =
c_req[OMPI_INT_2_FINT(*indx)]->req_f_to_c_index;
++(*indx);
}
if (!OMPI_IS_FORTRAN_STATUS_IGNORE(status)) {
MPI_Status_c2f(&c_status, status);
}
}
free(c_req);
}