Brandon Potter
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/******************************************************************************
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* Copyright (c) 2024 Advanced Micro Devices, Inc. All rights reserved.
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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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using namespace rocshmem;
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/* Declare the template with a generic implementation */
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template <typename T>
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__device__ void wg_broadcast(roc_shmem_ctx_t ctx, T *dest, const T *source,
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int nelem, int pe_root, int pe_start,
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int log_pe_stride, int pe_size, long *p_sync) {
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return;
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}
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/* Define templates to call ROC_SHMEM */
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#define BROADCAST_DEF_GEN(T, TNAME) \
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template <> \
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__device__ void wg_broadcast<T>( \
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roc_shmem_ctx_t ctx, T * dest, const T *source, int nelem, int pe_root, \
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int pe_start, int log_pe_stride, int pe_size, long *p_sync) { \
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roc_shmem_ctx_##TNAME##_wg_broadcast(ctx, dest, source, nelem, pe_root, \
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pe_start, log_pe_stride, pe_size, \
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p_sync); \
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}
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BROADCAST_DEF_GEN(float, float)
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BROADCAST_DEF_GEN(double, double)
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BROADCAST_DEF_GEN(char, char)
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// BROADCAST_DEF_GEN(long double, longdouble)
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BROADCAST_DEF_GEN(signed char, schar)
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BROADCAST_DEF_GEN(short, short)
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BROADCAST_DEF_GEN(int, int)
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BROADCAST_DEF_GEN(long, long)
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BROADCAST_DEF_GEN(long long, longlong)
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BROADCAST_DEF_GEN(unsigned char, uchar)
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BROADCAST_DEF_GEN(unsigned short, ushort)
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BROADCAST_DEF_GEN(unsigned int, uint)
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BROADCAST_DEF_GEN(unsigned long, ulong)
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BROADCAST_DEF_GEN(unsigned long long, ulonglong)
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/******************************************************************************
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* DEVICE TEST KERNEL
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*****************************************************************************/
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template <typename T1>
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__global__ void BroadcastTest(int loop, int skip, uint64_t *timer,
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T1 *source_buf, T1 *dest_buf, long *pSync,
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int size, ShmemContextType ctx_type) {
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__shared__ roc_shmem_ctx_t ctx;
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roc_shmem_wg_init();
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roc_shmem_wg_ctx_create(ctx_type, &ctx);
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int n_pes = roc_shmem_ctx_n_pes(ctx);
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__syncthreads();
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uint64_t start;
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for (int i = 0; i < loop; i++) {
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if (i == skip && hipThreadIdx_x == 0) {
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start = roc_shmem_timer();
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}
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wg_broadcast<T1>(ctx,
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dest_buf, // T* dest
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source_buf, // const T* source
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size, // int nelement
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0, // int PE_root
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0, // int PE_start
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0, // int logPE_stride
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n_pes, // int PE_size
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pSync); // long *pSync
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roc_shmem_ctx_wg_barrier_all(ctx);
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}
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__syncthreads();
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if (hipThreadIdx_x == 0) {
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timer[hipBlockIdx_x] = roc_shmem_timer() - start;
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}
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roc_shmem_wg_ctx_destroy(&ctx);
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roc_shmem_wg_finalize();
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}
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/******************************************************************************
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* HOST TESTER CLASS METHODS
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*****************************************************************************/
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template <typename T1>
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BroadcastTester<T1>::BroadcastTester(
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TesterArguments args, std::function<void(T1 &, T1 &)> f1,
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std::function<std::pair<bool, std::string>(const T1 &)> f2)
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: Tester(args), init_buf{f1}, verify_buf{f2} {
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source_buf = (T1 *)roc_shmem_malloc(args.max_msg_size * sizeof(T1));
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dest_buf = (T1 *)roc_shmem_malloc(args.max_msg_size * sizeof(T1));
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size_t p_sync_size = ROC_SHMEM_BCAST_SYNC_SIZE;
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pSync = (long *)roc_shmem_malloc(p_sync_size * sizeof(long));
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for (int i = 0; i < p_sync_size; i++) {
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pSync[i] = ROC_SHMEM_SYNC_VALUE;
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}
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}
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template <typename T1>
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BroadcastTester<T1>::~BroadcastTester() {
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roc_shmem_free(source_buf);
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roc_shmem_free(dest_buf);
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roc_shmem_free(pSync);
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}
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template <typename T1>
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void BroadcastTester<T1>::launchKernel(dim3 gridSize, dim3 blockSize, int loop,
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uint64_t size) {
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size_t shared_bytes = 0;
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hipLaunchKernelGGL(BroadcastTest<T1>, gridSize, blockSize, shared_bytes,
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stream, loop, args.skip, timer, source_buf, dest_buf,
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pSync, size, _shmem_context);
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num_msgs = loop + args.skip;
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num_timed_msgs = loop;
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}
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template <typename T1>
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void BroadcastTester<T1>::resetBuffers(uint64_t size) {
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for (int i = 0; i < args.max_msg_size; i++) {
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init_buf(source_buf[i], dest_buf[i]);
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}
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}
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template <typename T1>
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void BroadcastTester<T1>::verifyResults(uint64_t size) {
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for (int i = 0; i < size; i++) {
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auto r = verify_buf(dest_buf[i]);
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if (r.first == false) {
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fprintf(stderr, "Data validation error at idx %d\n", i);
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fprintf(stderr, "%s.\n", r.second.c_str());
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exit(-1);
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}
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}
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}
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