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/*
* Copyright (c) 2004-2007 The Trustees of the University of Tennessee.
* All rights reserved.
* Copyright (c) 2021 Cisco Systems, Inc. All rights reserved
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "vprotocol_pessimist.h"
#include "vprotocol_pessimist_wait.h"
/* Helpers to prevent requests from being freed by the real wait/test */
static int vprotocol_pessimist_request_no_free(ompi_request_t **req) {
return OMPI_SUCCESS;
}
#define PREPARE_REQUESTS_WITH_NO_FREE(count, requests) do { \
for (typeof(count) i = 0; i < count; i++) \
{ \
if(requests[i] == MPI_REQUEST_NULL) continue; \
requests[i]->req_free = vprotocol_pessimist_request_no_free; \
} \
} while(0)
int mca_vprotocol_pessimist_test(ompi_request_t ** rptr, int *completed,
ompi_status_public_t * status)
{
int ret;
int index;
VPROTOCOL_PESSIMIST_DELIVERY_REPLAY(1, rptr, completed, &index, status);
ret = mca_pml_v.host_request_fns.req_test(rptr, completed, status);
if(completed)
vprotocol_pessimist_delivery_log(*rptr);
else
vprotocol_pessimist_delivery_log(NULL);
return ret;
}
int mca_vprotocol_pessimist_test_all(size_t count, ompi_request_t ** requests,
int *completed,
ompi_status_public_t * statuses)
{
int ret;
int index;
/* /!\ this is not correct until I upgrade DELIVERY_REPLAY to manage several requests at once */
VPROTOCOL_PESSIMIST_DELIVERY_REPLAY(1, requests, completed, &index, statuses);
ret = mca_pml_v.host_request_fns.req_test_all(count, requests, completed,
statuses);
#if 0
/* This is not correct :/ */
if(completed)
vprotocol_pessimist_delivery_log(requests); /* /!\ need to make sure this is correct: what if first is request_null ? */
else
vprotocol_pessimist_delivery_log(NULL);
#endif
return ret;
}
/* TESTANY and WAITANY */
int mca_vprotocol_pessimist_test_any(size_t count, ompi_request_t ** requests,
int *index, int *completed,
ompi_status_public_t * status)
{
int ret;
VPROTOCOL_PESSIMIST_DELIVERY_REPLAY(count, requests, completed, index, status);
PREPARE_REQUESTS_WITH_NO_FREE(count, requests);
/* Call the real one to do the job */
ret = mca_pml_v.host_request_fns.req_test_any(count, requests, index, completed,
status);
if(completed)
{ /* Parse the result */
for(size_t i = 0; i < count; i++)
{
ompi_request_t *req = requests[i];
if(req == MPI_REQUEST_NULL) continue;
/* Restore requests and store they've been delivered */
req->req_free = mca_vprotocol_pessimist_request_free;
if(i == (size_t) *index)
{
vprotocol_pessimist_delivery_log(req);
/* only free request without error status */
if(req->req_status.MPI_ERROR == MPI_SUCCESS)
ompi_request_free(&(requests[i]));
else
ret = req->req_status.MPI_ERROR;
}
}
}
else
{
/* No request delivered this time, log it */
vprotocol_pessimist_delivery_log(NULL);
}
return ret;
}
int mca_vprotocol_pessimist_wait_any(size_t count, ompi_request_t ** requests,
int *index, ompi_status_public_t * status)
{
int ret;
int dummy;
VPROTOCOL_PESSIMIST_DELIVERY_REPLAY(count, requests, &dummy, index, status);
PREPARE_REQUESTS_WITH_NO_FREE(count, requests);
/* Call the real one to do the job */
ret = mca_pml_v.host_request_fns.req_wait_any(count, requests, index, status);
/* Parse the result */
for(size_t i = 0; i < count; i++)
{
ompi_request_t *req = requests[i];
if(req == MPI_REQUEST_NULL) continue;
/* Restore requests and store they've been delivered */
req->req_free = mca_vprotocol_pessimist_request_free;
if(i == (size_t) *index)
{
vprotocol_pessimist_delivery_log(req);
/* only free request without error status */
if(req->req_status.MPI_ERROR == MPI_SUCCESS)
ompi_request_free(&(requests[i]));
else
ret = req->req_status.MPI_ERROR;
}
}
return ret;
}
/* TESTSOME and WAITSOME */
int mca_vprotocol_pessimist_test_some(size_t count, ompi_request_t ** requests,
int * outcount, int * indices,
ompi_status_public_t * statuses)
{
int ret;
ret = mca_vprotocol_pessimist_test_any(count, requests, indices, outcount, statuses);
if(*outcount) *outcount = 1;
return ret;
}
int mca_vprotocol_pessimist_wait_some(size_t count, ompi_request_t ** requests,
int *outcount, int *indexes,
ompi_status_public_t * statuses)
{
int ret;
ret = mca_vprotocol_pessimist_wait_any(count, requests, indexes, statuses);
if(MPI_UNDEFINED == *indexes) *outcount = 0;
else *outcount = 1;
return ret;
}
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