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/*
* Copyright (c) 2011 Sandia National Laboratories. All rights reserved.
* Copyright (c) 2017 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/mca/osc/base/base.h"
#include "ompi/mca/osc/base/osc_base_obj_convert.h"
#include "ompi/mca/osc/osc.h"
#include "osc_portals4.h"
int
ompi_osc_portals4_fence(int mpi_assert, struct ompi_win_t *win)
{
ompi_osc_portals4_module_t *module =
(ompi_osc_portals4_module_t*) win->w_osc_module;
int comm_ret, ret;
/* can't enter an active target epoch when in a passive target epoch */
if (module->passive_target_access_epoch) {
return OMPI_ERR_RMA_SYNC;
}
comm_ret = ompi_osc_portals4_complete_all(module);
ret = module->comm->c_coll->coll_barrier(module->comm,
module->comm->c_coll->coll_barrier_module);
return (OMPI_SUCCESS == comm_ret) ? ret : comm_ret;
}
int
ompi_osc_portals4_start(struct ompi_group_t *group,
int mpi_assert,
struct ompi_win_t *win)
{
ompi_osc_portals4_module_t *module =
(ompi_osc_portals4_module_t*) win->w_osc_module;
/* can't enter an active target epoch when in a passive target epoch */
if (module->passive_target_access_epoch) {
return OMPI_ERR_RMA_SYNC;
}
if (0 == (mpi_assert & MPI_MODE_NOCHECK)) {
int size;
OBJ_RETAIN(group);
module->start_group = group;
size = ompi_group_size(module->start_group);
while (module->state.post_count != size) opal_progress();
} else {
module->start_group = NULL;
}
return OMPI_SUCCESS;
}
int
ompi_osc_portals4_complete(struct ompi_win_t *win)
{
ompi_osc_portals4_module_t *module =
(ompi_osc_portals4_module_t*) win->w_osc_module;
int ret, i, size;
ret = ompi_osc_portals4_complete_all(module);
if (ret != OMPI_SUCCESS) return ret;
if (NULL != module->start_group) {
module->state.post_count = 0;
PtlAtomicSync();
size = ompi_group_size(module->start_group);
for (i = 0 ; i < size ; ++i) {
ret = PtlAtomic(module->md_h,
(ptl_size_t) &module->one,
sizeof(module->one),
PTL_ACK_REQ,
ompi_osc_portals4_get_peer_group(module->start_group, i),
module->pt_idx,
module->match_bits | OSC_PORTALS4_MB_CONTROL,
offsetof(ompi_osc_portals4_node_state_t, complete_count),
NULL,
0,
PTL_SUM,
PTL_INT32_T);
if (ret != OMPI_SUCCESS) return ret;
OPAL_THREAD_ADD_FETCH64(&module->opcount, 1);
}
ret = ompi_osc_portals4_complete_all(module);
if (ret != OMPI_SUCCESS) return ret;
OBJ_RELEASE(module->start_group);
module->start_group = NULL;
}
return OMPI_SUCCESS;
}
int
ompi_osc_portals4_post(struct ompi_group_t *group,
int mpi_assert,
struct ompi_win_t *win)
{
ompi_osc_portals4_module_t *module =
(ompi_osc_portals4_module_t*) win->w_osc_module;
int ret, i, size;
if (0 == (mpi_assert & MPI_MODE_NOCHECK)) {
OBJ_RETAIN(group);
module->post_group = group;
module->state.complete_count = 0;
PtlAtomicSync();
size = ompi_group_size(module->post_group);
for (i = 0 ; i < size ; ++i) {
ret = PtlAtomic(module->md_h,
(ptl_size_t) &module->one,
sizeof(module->one),
PTL_ACK_REQ,
ompi_osc_portals4_get_peer_group(module->post_group, i),
module->pt_idx,
module->match_bits | OSC_PORTALS4_MB_CONTROL,
offsetof(ompi_osc_portals4_node_state_t, post_count),
NULL,
0,
PTL_SUM,
PTL_INT32_T);
if (ret != OMPI_SUCCESS) return ret;
OPAL_THREAD_ADD_FETCH64(&module->opcount, 1);
}
} else {
module->post_group = NULL;
}
return OMPI_SUCCESS;
}
int
ompi_osc_portals4_wait(struct ompi_win_t *win)
{
ompi_osc_portals4_module_t *module =
(ompi_osc_portals4_module_t*) win->w_osc_module;
if (NULL != module->post_group) {
int size = ompi_group_size(module->post_group);
while (module->state.complete_count != size) opal_progress();
OBJ_RELEASE(module->post_group);
module->post_group = NULL;
}
return OMPI_SUCCESS;
}
int
ompi_osc_portals4_test(struct ompi_win_t *win,
int *flag)
{
ompi_osc_portals4_module_t *module =
(ompi_osc_portals4_module_t*) win->w_osc_module;
if (NULL != module->post_group) {
int size = ompi_group_size(module->post_group);
if (module->state.complete_count == size) {
OBJ_RELEASE(module->post_group);
module->post_group = NULL;
*flag = 1;
}
} else {
*flag = 0;
}
return OMPI_SUCCESS;
}
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