Anatolii Rozanov
5577feb70d
* Add host-side rocshmem_alltoallmem_on_stream function
Function signature:
rocshmem_alltoallmem_on_stream(rocshmem_team_t team, void *dest,
const void *source, size_t size,
hipStream_t stream)
- The function launches rocshmem_alltoallmem_kernel which calls
device-side alltoall<char> workgroup collective through default context.
- Uses dynamic block size determination via occupancy API.
- Implemented for all backends.
* Fix incorrect sync buffer size allocation for alltoall in GDA and IPC backends
When allocating memory for alltoall_pSync_pool in setup_teams() and
teams_init() functions, the code incorrectly used ROCSHMEM_BCAST_SYNC_SIZE
instead of ROCSHMEM_ALLTOALL_SYNC_SIZE.
* Add functional test for team_alltoallmem_on_stream
This commit adds a new functional test to verify the correctness of
the host-side rocshmem_team_alltoallmem_on_stream API.
* Add documentation for rocshmem_alltoallmem_on_stream
This commit adds API documentation for the host-side
rocshmem_alltoallmem_on_stream function in the collective routines
section. The documentation includes:
125 lines
4.8 KiB
C++
125 lines
4.8 KiB
C++
/******************************************************************************
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* Copyright (c) Advanced Micro Devices, Inc. All rights reserved.
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*
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* SPDX-License-Identifier: MIT
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to
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* deal in the Software without restriction, including without limitation the
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* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*****************************************************************************/
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#include "rocshmem/rocshmem_config.h" // NOLINT(build/include_subdir)
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#include "context_gda_host.hpp"
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#include "backend_type.hpp"
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#include "context_incl.hpp"
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#include "backend_gda.hpp"
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#include "host/host.hpp"
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namespace rocshmem {
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__host__ GDAHostContext::GDAHostContext(Backend *backend,
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[[maybe_unused]] int64_t options)
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: Context(backend, true) {
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GDABackend *b{static_cast<GDABackend *>(backend)};
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host_interface = b->host_interface;
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context_window_info = host_interface->acquire_window_context();
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int *pes_with_ipc_avail = new int[backend->ipcImpl.shm_size];
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char** ipc_bases = new char*[b->ipcImpl.shm_size];
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if (backend->ipcImpl.pes_with_ipc_avail != nullptr) {
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CHECK_HIP(hipMemcpy(pes_with_ipc_avail,
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backend->ipcImpl.pes_with_ipc_avail,
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backend->ipcImpl.shm_size * sizeof(int),
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hipMemcpyDeviceToHost));
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CHECK_HIP(hipMemcpy(ipc_bases,
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backend->ipcImpl.ipc_bases,
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backend->ipcImpl.shm_size * sizeof(char *),
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hipMemcpyDeviceToHost));
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}
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ipcImpl_.pes_with_ipc_avail = pes_with_ipc_avail;
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ipcImpl_.ipc_bases = ipc_bases;
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ipcImpl_.shm_size = backend->ipcImpl.shm_size;
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ipcImpl_.shm_rank = backend->ipcImpl.shm_rank;
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}
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__host__ GDAHostContext::~GDAHostContext() {
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delete[] ipcImpl_.pes_with_ipc_avail;
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delete[] ipcImpl_.ipc_bases;
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host_interface->release_window_context(context_window_info);
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}
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__host__ void GDAHostContext::putmem_nbi(void *dest, const void *source,
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size_t nelems, int pe) {
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host_interface->putmem_nbi(dest, source, nelems, pe, context_window_info);
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}
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__host__ void GDAHostContext::getmem_nbi(void *dest, const void *source,
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size_t nelems, int pe) {
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host_interface->getmem_nbi(dest, source, nelems, pe, context_window_info);
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}
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__host__ void GDAHostContext::putmem(void *dest, const void *source,
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size_t nelems, int pe) {
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host_interface->putmem(dest, source, nelems, pe, context_window_info);
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}
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__host__ void GDAHostContext::getmem(void *dest, const void *source,
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size_t nelems, int pe) {
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host_interface->getmem(dest, source, nelems, pe, context_window_info);
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}
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__host__ void GDAHostContext::fence() {
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host_interface->fence(context_window_info);
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}
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__host__ void GDAHostContext::quiet() {
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host_interface->quiet(context_window_info);
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}
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__host__ void *GDAHostContext::shmem_ptr(const void *dest, int pe) {
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void *ret = nullptr;
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int local_pe{-1};
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if (ipcImpl_.isIpcAvailable(my_pe, pe, &local_pe)) {
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void *dst = const_cast<void *>(dest);
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uint64_t L_offset = reinterpret_cast<char *>(dst) - ipcImpl_.ipc_bases[ipcImpl_.shm_rank];
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ret = ipcImpl_.ipc_bases[local_pe] + L_offset;
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}
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return ret;
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}
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__host__ void GDAHostContext::sync_all() {
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host_interface->sync_all(context_window_info);
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}
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__host__ void GDAHostContext::barrier_all() {
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host_interface->barrier_all(context_window_info);
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}
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__host__ void GDAHostContext::alltoallmem_on_stream(rocshmem_team_t team,
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void *dest,
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const void *source,
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size_t size,
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hipStream_t stream) {
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host_interface->alltoallmem_on_stream(team, dest, source, size, stream);
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}
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} // namespace rocshmem
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