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/**
Copyright (c) 2021 Mellanox Technologies. All rights reserved.
$COPYRIGHT$
Additional copyrights may follow
$HEADER$
*/
#include "scoll_ucc.h"
#include "scoll_ucc_dtypes.h"
#include "scoll_ucc_common.h"
#include <ucc/api/ucc.h>
static inline ucc_status_t mca_scoll_ucc_broadcast_init(void * buf, int count,
int root,
mca_scoll_ucc_module_t * ucc_module,
ucc_coll_req_h * req)
{
ucc_coll_args_t coll = {
.mask = 0,
.coll_type = UCC_COLL_TYPE_BCAST,
.root = root,
.src.info = {
.buffer = buf,
.count = count,
.datatype = UCC_DT_INT8,
.mem_type = UCC_MEMORY_TYPE_UNKNOWN
}
};
if (NULL == mca_scoll_ucc_component.ucc_context) {
if (OSHMEM_ERROR == mca_scoll_ucc_init_ctx(ucc_module->group)) {
return OSHMEM_ERROR;
}
}
if (NULL == ucc_module->ucc_team) {
if (OSHMEM_ERROR == mca_scoll_ucc_team_create(ucc_module, ucc_module->group)) {
return OSHMEM_ERROR;
}
}
SCOLL_UCC_REQ_INIT(req, coll, ucc_module);
return UCC_OK;
fallback:
return UCC_ERR_NOT_SUPPORTED;
}
int mca_scoll_ucc_broadcast(struct oshmem_group_t *group,
int PE_root,
void *target,
const void *source,
size_t nlong,
long *pSync,
bool nlong_type,
int alg)
{
mca_scoll_ucc_module_t * ucc_module;
void * buf;
ucc_coll_req_h req;
int rc;
UCC_VERBOSE(3, "running ucc bcast");
ucc_module = (mca_scoll_ucc_module_t *) group->g_scoll.scoll_broadcast_module;
if (group->my_pe == PE_root) {
buf = (void *) source;
} else {
buf = target;
}
/* Do nothing on zero-length request */
if (OPAL_UNLIKELY(!nlong)) {
return OSHMEM_SUCCESS;
}
SCOLL_UCC_CHECK(mca_scoll_ucc_broadcast_init(buf, nlong, PE_root, ucc_module, &req));
SCOLL_UCC_CHECK(ucc_collective_post(req));
SCOLL_UCC_CHECK(scoll_ucc_req_wait(req));
return OSHMEM_SUCCESS;
fallback:
UCC_VERBOSE(3, "running fallback bcast");
PREVIOUS_SCOLL_FN(ucc_module, broadcast, group, PE_root, target, source,
nlong, pSync, nlong_type, alg);
return rc;
}
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