/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
*
* (C) 2001 by Argonne National Laboratory.
* See COPYRIGHT in top-level directory.
*/
#include "mpiimpl.h"
#if !defined(MPIR_REQUEST_PTR_ARRAY_SIZE)
#define MPIR_REQUEST_PTR_ARRAY_SIZE 16
#endif
/* -- Begin Profiling Symbol Block for routine MPI_Testany */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Testany = PMPI_Testany
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Testany MPI_Testany
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Testany as PMPI_Testany
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_Testany(int count, MPI_Request array_of_requests[], int *indx, int *flag,
MPI_Status * status) __attribute__ ((weak, alias("PMPI_Testany")));
#endif
/* -- End Profiling Symbol Block */
/* Define MPICH_MPI_FROM_PMPI if weak symbols are not supported to build
the MPI routines */
#ifndef MPICH_MPI_FROM_PMPI
#undef MPI_Testany
#define MPI_Testany PMPI_Testany
#undef FUNCNAME
#define FUNCNAME MPIR_Testany_impl
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
int MPIR_Testany_impl(int count, MPIR_Request * request_ptrs[],
int *indx, int *flag, MPI_Status * status)
{
int i;
int n_inactive = 0;
int mpi_errno = MPI_SUCCESS;
mpi_errno = MPID_Progress_test();
/* --BEGIN ERROR HANDLING-- */
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
/* --END ERROR HANDLING-- */
for (i = 0; i < count; i++) {
if ((i + 1) % MPIR_CVAR_REQUEST_POLL_FREQ == 0) {
mpi_errno = MPID_Progress_test();
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
}
if (request_ptrs[i] != NULL && MPIR_Request_has_poll_fn(request_ptrs[i])) {
mpi_errno = MPIR_Grequest_poll(request_ptrs[i], status);
if (mpi_errno != MPI_SUCCESS)
goto fn_fail;
}
if (!MPIR_Request_is_active(request_ptrs[i])) {
n_inactive += 1;
} else if (MPIR_Request_is_complete(request_ptrs[i])) {
*flag = TRUE;
*indx = i;
goto fn_exit;
}
}
if (n_inactive == count) {
*flag = TRUE;
*indx = MPI_UNDEFINED;
}
fn_exit:
return mpi_errno;
fn_fail:
goto fn_exit;
}
#endif
#undef FUNCNAME
#define FUNCNAME MPI_Testany
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
/*@
MPI_Testany - Tests for completion of any previdously initiated
requests
Input Parameters:
+ count - list length (integer)
- array_of_requests - array of requests (array of handles)
Output Parameters:
+ indx - index of operation that completed, or 'MPI_UNDEFINED' if none
completed (integer)
. flag - true if one of the operations is complete (logical)
- status - status object (Status). May be 'MPI_STATUS_IGNORE'.
Notes:
While it is possible to list a request handle more than once in the
'array_of_requests', such an action is considered erroneous and may cause the
program to unexecpectedly terminate or produce incorrect results.
.N ThreadSafe
.N waitstatus
.N Fortran
.N Errors
.N MPI_SUCCESS
@*/
int MPI_Testany(int count, MPI_Request array_of_requests[], int *indx,
int *flag, MPI_Status * status)
{
MPIR_Request *request_ptr_array[MPIR_REQUEST_PTR_ARRAY_SIZE];
MPIR_Request **request_ptrs = request_ptr_array;
int i;
int n_inactive;
int active_flag;
int last_disabled_anysource = -1;
int first_nonnull = count;
int mpi_errno = MPI_SUCCESS;
MPIR_CHKLMEM_DECL(1);
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_TESTANY);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPID_THREAD_CS_ENTER(VNI_GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
MPIR_FUNC_TERSE_REQUEST_ENTER(MPID_STATE_MPI_TESTANY);
/* Check the arguments */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_COUNT(count, mpi_errno);
if (count != 0) {
MPIR_ERRTEST_ARGNULL(array_of_requests, "array_of_requests", mpi_errno);
/* NOTE: MPI_STATUS_IGNORE != NULL */
MPIR_ERRTEST_ARGNULL(status, "status", mpi_errno);
}
MPIR_ERRTEST_ARGNULL(indx, "indx", mpi_errno);
MPIR_ERRTEST_ARGNULL(flag, "flag", mpi_errno);
for (i = 0; i < count; i++) {
MPIR_ERRTEST_ARRAYREQUEST_OR_NULL(array_of_requests[i], i, mpi_errno);
}
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
/* Convert MPI request handles to a request object pointers */
if (count > MPIR_REQUEST_PTR_ARRAY_SIZE) {
MPIR_CHKLMEM_MALLOC_ORJUMP(request_ptrs, MPIR_Request **, count * sizeof(MPIR_Request *),
mpi_errno, "request pointers", MPL_MEM_OBJECT);
}
n_inactive = 0;
*flag = FALSE;
*indx = MPI_UNDEFINED;
for (i = 0; i < count; i++) {
if (array_of_requests[i] != MPI_REQUEST_NULL) {
MPIR_Request_get_ptr(array_of_requests[i], request_ptrs[i]);
/* Validate object pointers if error checking is enabled */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_Request_valid_ptr(request_ptrs[i], mpi_errno);
if (mpi_errno)
goto fn_fail;
}
MPID_END_ERROR_CHECKS;
}
#endif
if (unlikely(MPIR_Request_is_anysrc_mismatched(request_ptrs[i]))) {
last_disabled_anysource = i;
}
if (MPIR_Request_is_complete(request_ptrs[i])) {
if (MPIR_Request_is_active(request_ptrs[i])) {
*indx = i;
*flag = TRUE;
break;
} else {
request_ptrs[i] = NULL;
}
} else {
if (first_nonnull == count)
first_nonnull = i;
}
} else {
request_ptrs[i] = NULL;
n_inactive += 1;
}
}
if (n_inactive == count) {
*flag = TRUE;
*indx = MPI_UNDEFINED;
if (status != NULL) /* could be null if count=0 */
MPIR_Status_set_empty(status);
goto fn_exit;
}
if (*indx == MPI_UNDEFINED) {
mpi_errno =
MPID_Testany(count - first_nonnull, &request_ptrs[first_nonnull], indx, flag, status);
/* --BEGIN ERROR HANDLING-- */
if (mpi_errno != MPI_SUCCESS) {
goto fn_fail;
}
/* --END ERROR HANDLING-- */
if (*indx != MPI_UNDEFINED) {
*indx += first_nonnull;
}
}
if (*indx != MPI_UNDEFINED) {
mpi_errno = MPIR_Request_completion_processing(request_ptrs[*indx], status, &active_flag);
if (!MPIR_Request_is_persistent(request_ptrs[*indx])) {
MPIR_Request_free(request_ptrs[*indx]);
array_of_requests[*indx] = MPI_REQUEST_NULL;
}
if (mpi_errno)
MPIR_ERR_POP(mpi_errno);
goto fn_exit;
}
/* If none of the requests completed, mark the last anysource request as
* pending failure. */
if (unlikely(last_disabled_anysource != -1)) {
MPIR_ERR_SET(mpi_errno, MPIX_ERR_PROC_FAILED_PENDING, "**failure_pending");
if (status != MPI_STATUS_IGNORE)
status->MPI_ERROR = mpi_errno;
*flag = TRUE;
goto fn_fail;
}
/* ... end of body of routine ... */
fn_exit:
if (count > MPIR_REQUEST_PTR_ARRAY_SIZE) {
MPIR_CHKLMEM_FREEALL();
}
MPIR_FUNC_TERSE_REQUEST_EXIT(MPID_STATE_MPI_TESTANY);
MPID_THREAD_CS_EXIT(VNI_GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
return mpi_errno;
fn_fail:
/* --BEGIN ERROR HANDLING-- */
#ifdef HAVE_ERROR_CHECKING
{
mpi_errno =
MPIR_Err_create_code(mpi_errno, MPIR_ERR_RECOVERABLE, FCNAME, __LINE__, MPI_ERR_OTHER,
"**mpi_testany", "**mpi_testany %d %p %p %p %p", count,
array_of_requests, indx, flag, status);
}
#endif
mpi_errno = MPIR_Err_return_comm(NULL, FCNAME, mpi_errno);
goto fn_exit;
/* --END ERROR HANDLING-- */
}