Files
Aurelien Bouteiller 8837414042 Cleanup/wg init (#260)
* remove wg_init and wg_finalize from functional tests

* Remove wg_init and wg_finalize from examples

* deprecate wg_init/finalize

* Updated docs

* Typo in documentation

---------

Co-authored-by: Yiltan <yiltan@amd.com>

[ROCm/rocshmem commit: 6e7277b544]
2025-10-07 14:34:18 -04:00

130 строки
4.2 KiB
C++

/******************************************************************************
* Copyright (c) Advanced Micro Devices, Inc. All rights reserved.
*
* SPDX-License-Identifier: MIT
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*****************************************************************************/
/*
* First find your offload target, and if xnack is enabled/disabled using
rocminfo | grep amdgcn
* It should output a string like so:
"Name: amdgcn-amd-amdhsa--gfx942:sramecc+:xnack-"
* This lists the offload taret (gfx942) and that xnack is disabled (xnack-).
* Therefore, we need to specify --offload-arch=gfx942:xnack- to our link and compile commands.
* Please modify the compile and link commands to suit your system
* To compile:
hipcc -c -fgpu-rdc -x hip rocshmem_getmem_test.cc \
--offload-arch=<target>:<xnack> \
-I/opt/rocm/include \
-I$ROCSHMEM_INSTALL_DIR/include \
-I$OPENMPI_UCX_INSTALL_DIR/include/
* To link:
hipcc -fgpu-rdc --hip-link rocshmem_getmem_test.o -o rocshmem_getmem_test \
--offload-arch=<target>:<xnack> \
$ROCSHMEM_INSTALL_DIR/lib/librocshmem.a \
$OPENMPI_UCX_INSTALL_DIR/lib/libmpi.so \
-L/opt/rocm/lib -lamdhip64 -lhsa-runtime64
* To run:
mpirun -np 8 -x ROCSHMEM_MAX_NUM_CONTEXTS=2 ./rocshmem_getmem_test
*/
#include <rocshmem/rocshmem.hpp>
#include "util.h"
using namespace rocshmem;
__global__ void simple_getmem_test(int *src, int *dst, size_t nelem)
{
int threadId = blockIdx.x * blockDim.x + threadIdx.x;
if (threadId == 0) {
int my_pe = rocshmem_my_pe();
int peer = my_pe ? 0 : 1;
rocshmem_getmem(dst, src, nelem * sizeof(int), peer);
rocshmem_quiet();
}
__syncthreads();
}
#define MAX_ELEM 256
int main (int argc, char **argv)
{
int nelem = MAX_ELEM;
if (argc > 1) {
nelem = atoi(argv[1]);
}
CHECK_HIP(hipSetDevice(get_launcher_local_rank()));
rocshmem_init();
int my_pe = rocshmem_my_pe();
int npes = rocshmem_n_pes();
int *src = (int *)rocshmem_malloc(nelem * sizeof(int));
int *dst = (int *)rocshmem_malloc(nelem * sizeof(int));
if (NULL == src || NULL == dst) {
std::cout << "Error allocating memory from symmetric heap" << std::endl;
std::cout << "source: " << src << ", dest: " << dst << ", size: "
<< sizeof(int) * nelem << std::endl;
rocshmem_global_exit(1);
}
for (int i=0; i<nelem; i++) {
src[i] = 0;
dst[i] = 1;
}
CHECK_HIP(hipDeviceSynchronize());
int threadsPerBlock=256;
simple_getmem_test<<<dim3(1), dim3(threadsPerBlock), 0, 0>>>(src, dst, nelem);
rocshmem_barrier_all();
CHECK_HIP(hipDeviceSynchronize());
bool pass = true;
for (int i=0; i<nelem; i++) {
if (dst[i] != 0) {
pass = false;
#if VERBOSE
printf("[%d] Error in element %d expected 0 got %d\n", my_pe, i, dst[i]);
#endif
}
}
printf("Test %s \t %s\n", argv[0], pass ? "[PASS]" : "[FAIL]");
rocshmem_free(src);
rocshmem_free(dst);
rocshmem_finalize();
return 0;
}