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/**
* Copyright (c) 2021 Mellanox Technologies. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
*/
#include "coll_ucc_common.h"
static inline ucc_status_t mca_coll_ucc_allreduce_init(const void *sbuf, void *rbuf, size_t count,
struct ompi_datatype_t *dtype,
struct ompi_op_t *op, mca_coll_ucc_module_t *ucc_module,
ucc_coll_req_h *req,
mca_coll_ucc_req_t *coll_req)
{
ucc_datatype_t ucc_dt;
ucc_reduction_op_t ucc_op;
ucc_dt = ompi_dtype_to_ucc_dtype(dtype);
ucc_op = ompi_op_to_ucc_op(op);
if (OPAL_UNLIKELY(COLL_UCC_DT_UNSUPPORTED == ucc_dt)) {
UCC_VERBOSE(5, "ompi_datatype is not supported: dtype = %s",
dtype->super.name);
goto fallback;
}
if (OPAL_UNLIKELY(COLL_UCC_OP_UNSUPPORTED == ucc_op)) {
UCC_VERBOSE(5, "ompi_op is not supported: op = %s",
op->o_name);
goto fallback;
}
ucc_coll_args_t coll = {
.mask = 0,
.flags = 0,
.coll_type = UCC_COLL_TYPE_ALLREDUCE,
.src.info = {
.buffer = (void*)sbuf,
.count = count,
.datatype = ucc_dt,
.mem_type = UCC_MEMORY_TYPE_UNKNOWN
},
.dst.info = {
.buffer = rbuf,
.count = count,
.datatype = ucc_dt,
.mem_type = UCC_MEMORY_TYPE_UNKNOWN
},
.op = ucc_op,
};
if (MPI_IN_PLACE == sbuf) {
coll.mask |= UCC_COLL_ARGS_FIELD_FLAGS;
coll.flags = UCC_COLL_ARGS_FLAG_IN_PLACE;
}
COLL_UCC_REQ_INIT(coll_req, req, coll, ucc_module);
return UCC_OK;
fallback:
return UCC_ERR_NOT_SUPPORTED;
}
int mca_coll_ucc_allreduce(const void *sbuf, void *rbuf, int count,
struct ompi_datatype_t *dtype,
struct ompi_op_t *op, struct ompi_communicator_t *comm,
mca_coll_base_module_t *module)
{
mca_coll_ucc_module_t *ucc_module = (mca_coll_ucc_module_t*)module;
ucc_coll_req_h req;
UCC_VERBOSE(3, "running ucc allreduce");
COLL_UCC_CHECK(mca_coll_ucc_allreduce_init(sbuf, rbuf, count, dtype, op,
ucc_module, &req, NULL));
COLL_UCC_POST_AND_CHECK(req);
COLL_UCC_CHECK(coll_ucc_req_wait(req));
return OMPI_SUCCESS;
fallback:
UCC_VERBOSE(3, "running fallback allreduce");
return mca_coll_ucc_call_previous(allreduce, ucc_module,
sbuf, rbuf, count, dtype, op, comm);
}
int mca_coll_ucc_iallreduce(const void *sbuf, void *rbuf, int count,
struct ompi_datatype_t *dtype,
struct ompi_op_t *op, struct ompi_communicator_t *comm,
ompi_request_t** request,
mca_coll_base_module_t *module)
{
mca_coll_ucc_module_t *ucc_module = (mca_coll_ucc_module_t*)module;
ucc_coll_req_h req;
mca_coll_ucc_req_t *coll_req = NULL;
UCC_VERBOSE(3, "running ucc iallreduce");
COLL_UCC_GET_REQ(coll_req);
COLL_UCC_CHECK(mca_coll_ucc_allreduce_init(sbuf, rbuf, count, dtype, op,
ucc_module, &req, coll_req));
COLL_UCC_POST_AND_CHECK(req);
*request = &coll_req->super;
return OMPI_SUCCESS;
fallback:
UCC_VERBOSE(3, "running fallback iallreduce");
if (coll_req) {
mca_coll_ucc_req_free((ompi_request_t **)&coll_req);
}
return mca_coll_ucc_call_previous(iallreduce, ucc_module,
sbuf, rbuf, count, dtype, op, comm, request);
}
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