Ioannis Assiouras
125 linhas
3.8 KiB
C++
125 linhas
3.8 KiB
C++
/*
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Copyright (c) 2022 Advanced Micro Devices, Inc. All rights reserved.
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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 deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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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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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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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANNTY OF ANY KIND, EXPRESS OR
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IMPLIED, INNCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANNY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER INN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR INN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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/**
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Testcase Scenario :
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Validate behaviour of HIP when multiple hipStreaAddCallback() are called over
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multiple Threads.
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*/
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#include <stdio.h>
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#include <atomic>
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#include <chrono>
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#include <hip_test_common.hh>
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#include <hip_test_kernels.hh>
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#ifdef __HIP_PLATFORM_AMD__
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#define HIPRT_CB
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#endif
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#define SECONDS_TO_WAIT 2
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#define TO_MICROSECONDS 1000000
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hipStream_t mystream;
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size_t N_elmts = 4096;
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bool cbDone = false;
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std::atomic<int> Data_mismatch{0};
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__global__ void vector_square(float* C_d, float* A_d, size_t N_elmts) {
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size_t offset = (blockIdx.x * blockDim.x + threadIdx.x);
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size_t stride = blockDim.x * gridDim.x;
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for (size_t i = offset; i < N_elmts; i += stride) {
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C_d[i] = A_d[i] * A_d[i];
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}
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// Delay the thread 1
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if (offset == 1) {
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unsigned long long int wait_t = 3200000000, start = clock64(), cur;
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do {
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cur = clock64() - start;
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} while (cur < wait_t);
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}
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}
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float *A_h, *C_h;
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static void HIPRT_CB Callback1(hipStream_t stream, hipError_t status, void* userData) {
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(void)stream;
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(void)status;
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(void)userData;
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// Validate the data
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for (size_t i = 0; i < N_elmts; i++) {
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if (C_h[i] != A_h[i] * A_h[i]) {
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Data_mismatch++;
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}
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}
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// Delay the callback completion
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std::this_thread::sleep_for(std::chrono::seconds(SECONDS_TO_WAIT));
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cbDone = true;
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}
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/**
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Test multiple hipStreamAddCallback() called over
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multiple Threads.
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*/
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TEST_CASE("Unit_hipStreamAddCallback_StrmSyncTiming") {
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float *A_d, *C_d;
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size_t Nbytes = N_elmts * sizeof(float);
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A_h = (float*)malloc(Nbytes);
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HIPCHECK(A_h == 0 ? hipErrorOutOfMemory : hipSuccess);
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C_h = (float*)malloc(Nbytes);
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HIPCHECK(C_h == 0 ? hipErrorOutOfMemory : hipSuccess);
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// Fill with Phi + i
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for (size_t i = 0; i < N_elmts; i++) {
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A_h[i] = 1.618f + i;
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}
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HIPCHECK(hipMalloc(&A_d, Nbytes));
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HIPCHECK(hipMalloc(&C_d, Nbytes));
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HIPCHECK(hipStreamCreateWithFlags(&mystream, hipStreamNonBlocking));
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HIPCHECK(hipMemcpyAsync(A_d, A_h, Nbytes, hipMemcpyHostToDevice, mystream));
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const unsigned threadsPerBlock = 256;
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const unsigned blocks = (N_elmts + 255) / threadsPerBlock;
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hipLaunchKernelGGL((vector_square), dim3(blocks), dim3(threadsPerBlock), 0, mystream, C_d, A_d,
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N_elmts);
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HIPCHECK(hipMemcpyAsync(C_h, C_d, Nbytes, hipMemcpyDeviceToHost, mystream));
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HIPCHECK(hipStreamAddCallback(mystream, Callback1, NULL, 0));
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// Wait untill Callback() function changes the cbDone value to true
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while (!cbDone) {
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std::this_thread::sleep_for(std::chrono::milliseconds(10));
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}
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HIPCHECK(hipStreamQuery(mystream));
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HIPCHECK(hipStreamDestroy(mystream));
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HIPCHECK(hipFree(A_d));
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HIPCHECK(hipFree(C_d));
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free(A_h);
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free(C_h);
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REQUIRE(Data_mismatch.load() == 0);
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}
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