/* -*- 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_Testsome */
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_Testsome = PMPI_Testsome
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_Testsome MPI_Testsome
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_Testsome as PMPI_Testsome
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_Testsome(int incount, MPI_Request array_of_requests[], int *outcount,
int array_of_indices[], MPI_Status array_of_statuses[])
__attribute__ ((weak, alias("PMPI_Testsome")));
#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_Testsome
#define MPI_Testsome PMPI_Testsome
#undef FUNCNAME
#define FUNCNAME MPIR_Testsome_impl
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
int MPIR_Testsome_impl(int incount, MPIR_Request * request_ptrs[],
int *outcount, int array_of_indices[], MPI_Status array_of_statuses[])
{
int i;
int n_inactive;
int mpi_errno = MPI_SUCCESS;
mpi_errno = MPID_Progress_test();
/* --BEGIN ERROR HANDLING-- */
if (mpi_errno != MPI_SUCCESS)
MPIR_ERR_POP(mpi_errno);
/* --END ERROR HANDLING-- */
n_inactive = 0;
*outcount = 0;
for (i = 0; i < incount; 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], &array_of_statuses[i]);
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])) {
array_of_indices[*outcount] = i;
*outcount += 1;
}
}
if (n_inactive == incount)
*outcount = MPI_UNDEFINED;
fn_exit:
return mpi_errno;
fn_fail:
goto fn_exit;
}
#endif
#undef FUNCNAME
#define FUNCNAME MPI_Testsome
#undef FCNAME
#define FCNAME MPL_QUOTE(FUNCNAME)
/*@
MPI_Testsome - Tests for some given requests to complete
Input Parameters:
+ incount - length of array_of_requests (integer)
- array_of_requests - array of requests (array of handles)
Output Parameters:
+ outcount - number of completed requests (integer)
. array_of_indices - array of indices of operations that
completed (array of integers)
- array_of_statuses - array of status objects for
operations that completed (array of Status). May be 'MPI_STATUSES_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
.N MPI_ERR_IN_STATUS
@*/
int MPI_Testsome(int incount, MPI_Request array_of_requests[], int *outcount,
int array_of_indices[], MPI_Status array_of_statuses[])
{
MPIR_Request *request_ptr_array[MPIR_REQUEST_PTR_ARRAY_SIZE];
MPIR_Request **request_ptrs = request_ptr_array;
MPI_Status *status_ptr;
int i;
int n_inactive;
int proc_failure = FALSE;
int active_flag;
int rc = MPI_SUCCESS;
int mpi_errno = MPI_SUCCESS;
MPIR_CHKLMEM_DECL(1);
MPIR_FUNC_TERSE_STATE_DECL(MPID_STATE_MPI_TESTSOME);
MPIR_ERRTEST_INITIALIZED_ORDIE();
MPID_THREAD_CS_ENTER(VNI_GLOBAL, MPIR_THREAD_GLOBAL_ALLFUNC_MUTEX);
MPIR_FUNC_TERSE_REQUEST_ENTER(MPID_STATE_MPI_TESTSOME);
/* Check the arguments */
#ifdef HAVE_ERROR_CHECKING
{
MPID_BEGIN_ERROR_CHECKS;
{
MPIR_ERRTEST_COUNT(incount, mpi_errno);
if (incount != 0) {
MPIR_ERRTEST_ARGNULL(array_of_requests, "array_of_requests", mpi_errno);
MPIR_ERRTEST_ARGNULL(array_of_indices, "array_of_indices", mpi_errno);
/* NOTE: MPI_STATUSES_IGNORE != NULL */
MPIR_ERRTEST_ARGNULL(array_of_statuses, "array_of_statuses", mpi_errno);
}
MPIR_ERRTEST_ARGNULL(outcount, "outcount", mpi_errno);
for (i = 0; i < incount; i++) {
MPIR_ERRTEST_ARRAYREQUEST_OR_NULL(array_of_requests[i], i, mpi_errno);
}
}
MPID_END_ERROR_CHECKS;
}
#endif /* HAVE_ERROR_CHECKING */
/* ... body of routine ... */
*outcount = 0;
/* Convert MPI request handles to a request object pointers */
if (incount > MPIR_REQUEST_PTR_ARRAY_SIZE) {
MPIR_CHKLMEM_MALLOC_ORJUMP(request_ptrs, MPIR_Request **, incount * sizeof(MPIR_Request *),
mpi_errno, "request pointers", MPL_MEM_OBJECT);
}
n_inactive = 0;
for (i = 0; i < incount; 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]))) {
proc_failure = TRUE;
MPIR_ERR_SET(rc, MPIX_ERR_PROC_FAILED_PENDING, "**failure_pending");
if (array_of_statuses != MPI_STATUSES_IGNORE)
array_of_statuses[i].MPI_ERROR = rc;
}
} else {
request_ptrs[i] = NULL;
n_inactive += 1;
}
}
if (n_inactive == incount) {
*outcount = MPI_UNDEFINED;
goto fn_exit;
}
mpi_errno = MPID_Testsome(incount, request_ptrs, outcount, array_of_indices, array_of_statuses);
/* --BEGIN ERROR HANDLING-- */
if (mpi_errno != MPI_SUCCESS)
goto fn_fail;
/* --END ERROR HANDLING-- */
if (proc_failure)
mpi_errno = MPI_ERR_IN_STATUS;
if (*outcount == MPI_UNDEFINED)
goto fn_exit;
for (i = 0; i < *outcount; i++) {
int idx = array_of_indices[i];
status_ptr = (array_of_statuses == MPI_STATUSES_IGNORE) ?
MPI_STATUS_IGNORE : &array_of_statuses[i];
rc = MPIR_Request_completion_processing(request_ptrs[idx], status_ptr, &active_flag);
if (!MPIR_Request_is_persistent(request_ptrs[idx])) {
MPIR_Request_free(request_ptrs[idx]);
array_of_requests[idx] = MPI_REQUEST_NULL;
}
if (rc == MPI_SUCCESS) {
request_ptrs[idx] = NULL;
} else {
mpi_errno = MPI_ERR_IN_STATUS;
if (status_ptr != MPI_STATUS_IGNORE) {
status_ptr->MPI_ERROR = rc;
}
}
}
if (mpi_errno == MPI_ERR_IN_STATUS) {
if (array_of_statuses != MPI_STATUSES_IGNORE) {
for (i = 0; i < *outcount; i++) {
if (request_ptrs[array_of_indices[i]] == NULL) {
array_of_statuses[i].MPI_ERROR = MPI_SUCCESS;
}
}
}
}
/* ... end of body of routine ... */
fn_exit:
if (incount > MPIR_REQUEST_PTR_ARRAY_SIZE) {
MPIR_CHKLMEM_FREEALL();
}
MPIR_FUNC_TERSE_REQUEST_EXIT(MPID_STATE_MPI_TESTSOME);
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_testsome", "**mpi_testsome %d %p %p %p %p", incount,
array_of_requests, outcount, array_of_indices, array_of_statuses);
}
#endif
mpi_errno = MPIR_Err_return_comm(NULL, FCNAME, mpi_errno);
goto fn_exit;
/* --END ERROR HANDLING-- */
}