98 строки
3.0 KiB
C++
98 строки
3.0 KiB
C++
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/*
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Copyright (c) 2015-2021 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 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 FROM,
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OUT OF OR IN 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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/* HIT_START
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* BUILD: %t %s ../../test_common.cpp EXCLUDE_HIP_PLATFORM nvidia
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* TEST: %t
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* HIT_END
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*/
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#include "test_common.h"
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#include <thread>
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#include <unistd.h>
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#include <atomic>
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int *A, *B, *Ad, *Bd;
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std::atomic<bool> signal { false };
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extern "C" __global__ void WaitKernel(int *Ad, int clockrate) {
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uint64_t wait_t = 500,
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start = clock64()/clockrate, cycles;
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do { cycles = clock64()/clockrate-start;} while (cycles < wait_t);
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*Ad = 1;
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}
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void thread1(hipEvent_t start, hipStream_t stream1, int clkRate) {
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*B = 0;
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hipLaunchKernelGGL(HIP_KERNEL_NAME(WaitKernel), dim3(1), dim3(1), 0, stream1, Bd, clkRate);
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HIPCHECK(hipEventRecord(start, stream1));
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}
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void thread2(hipEvent_t start, hipStream_t stream1, int clkRate) {
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*A = 0;
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hipLaunchKernelGGL(HIP_KERNEL_NAME(WaitKernel), dim3(1), dim3(1), 0, stream1, Ad, clkRate);
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HIPCHECK(hipEventRecord(start, stream1));
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}
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int main(int argc, char* argv[]) {
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int clkRate = 0;
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A = (int *)malloc(sizeof(int));
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Ad = (int *)malloc(sizeof(int));
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B = (int *)malloc(sizeof(int));
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Bd = (int *)malloc(sizeof(int));
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HIPCHECK(hipHostRegister(A, sizeof(int), 0));
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HIPCHECK(hipHostGetDevicePointer((void**)&Ad, A, 0));
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HIPCHECK(hipHostRegister(B, sizeof(int), 0));
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HIPCHECK(hipHostGetDevicePointer((void**)&Bd, B, 0));
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HIPCHECK(hipDeviceGetAttribute(&clkRate, hipDeviceAttributeClockRate, 0));
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hipStream_t stream1;
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hipStreamCreate(&stream1);
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hipEvent_t start;
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hipEventCreate(&start);
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for (unsigned i = 0; i < 1000; i++) {
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std::thread t1(thread1, start, stream1, clkRate);
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std::thread t2(thread2, start, stream1, clkRate);
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t1.join();
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t2.join();
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HIPCHECK(hipStreamWaitEvent(stream1, start, 0));
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hipError_t err = hipEventQuery(start);
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while(err != hipSuccess) {
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err = hipEventQuery(start);
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}
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if (*A == 1 && *B == 1) {
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continue;
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}
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else {
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failed("Test Failed due to race condition");
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}
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}
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passed();
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}
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