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v4.1.x: coll/ucc: add reduce scatter block
Signed-off-by: Sergey Lebedev <sergeyle@nvidia.com> bot:notacherrypick
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,117 @@ | ||
| /** | ||
| * Copyright (c) 2021 Mellanox Technologies. All rights reserved. | ||
| * Copyright (c) 2022 NVIDIA Corporation. All rights reserved. | ||
| * $COPYRIGHT$ | ||
| * | ||
| * Additional copyrights may follow | ||
| * | ||
| */ | ||
|
|
||
| #include "coll_ucc_common.h" | ||
|
|
||
| static inline | ||
| ucc_status_t mca_coll_ucc_reduce_scatter_block_init(const void *sbuf, void *rbuf, | ||
| size_t rcount, | ||
| 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; | ||
| int comm_size = ompi_comm_size(ucc_module->comm); | ||
|
|
||
| if (MPI_IN_PLACE == sbuf) { | ||
| /* TODO: UCC defines inplace differently: | ||
| data in rbuf of rank R is shifted by R * rcount */ | ||
| UCC_VERBOSE(5, "inplace reduce_scatter_block is not supported"); | ||
| return UCC_ERR_NOT_SUPPORTED; | ||
| } | ||
| 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_REDUCE_SCATTER, | ||
| .src.info = { | ||
| .buffer = (void*)sbuf, | ||
| .count = ((size_t)rcount) * comm_size, | ||
| .datatype = ucc_dt, | ||
| .mem_type = UCC_MEMORY_TYPE_UNKNOWN | ||
| }, | ||
| .dst.info = { | ||
| .buffer = rbuf, | ||
| .count = rcount, | ||
| .datatype = ucc_dt, | ||
| .mem_type = UCC_MEMORY_TYPE_UNKNOWN | ||
| }, | ||
| .op = ucc_op, | ||
| }; | ||
| COLL_UCC_REQ_INIT(coll_req, req, coll, ucc_module); | ||
| return UCC_OK; | ||
| fallback: | ||
| return UCC_ERR_NOT_SUPPORTED; | ||
| } | ||
|
|
||
| int mca_coll_ucc_reduce_scatter_block(const void *sbuf, void *rbuf, int rcount, | ||
| 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 reduce scatter block"); | ||
| COLL_UCC_CHECK(mca_coll_ucc_reduce_scatter_block_init(sbuf, rbuf, rcount, | ||
| 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 reduce_scatter_block"); | ||
| return ucc_module->previous_reduce_scatter_block(sbuf, rbuf, rcount, dtype, | ||
| op, comm, | ||
| ucc_module->previous_reduce_scatter_block_module); | ||
| } | ||
|
|
||
| int mca_coll_ucc_ireduce_scatter_block(const void *sbuf, void *rbuf, int rcount, | ||
| 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 ireduce_scatter_block"); | ||
| COLL_UCC_GET_REQ(coll_req); | ||
| COLL_UCC_CHECK(mca_coll_ucc_reduce_scatter_block_init(sbuf, rbuf, rcount, | ||
| 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 ireduce_scatter_block"); | ||
| if (coll_req) { | ||
| mca_coll_ucc_req_free((ompi_request_t **)&coll_req); | ||
| } | ||
| return ucc_module->previous_ireduce_scatter_block(sbuf, rbuf, rcount, dtype, | ||
| op, comm, request, | ||
| ucc_module->previous_ireduce_scatter_block_module); | ||
| } |