62 wiersze
2.3 KiB
C++
62 wiersze
2.3 KiB
C++
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/*
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Copyright (c) 2015-2016 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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#include<iostream>
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#include"test_common.h"
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const int NN = 1 << 21;
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__global__ void kernel(hipLaunchParm lp, float *x, float *y, int n){
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int tid = hipThreadIdx_x;
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if(tid < 1){
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for(int i=0;i<n;i++){
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x[i] = sqrt(pow(3.14159,i));
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}
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y[tid] = y[tid] + 1.0f;
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}
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}
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__global__ void nKernel(hipLaunchParm lp, float *y){
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int tid = hipThreadIdx_x;
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y[tid] = y[tid] + 1.0f;
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}
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int main(){
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const int num_streams = 8;
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hipStream_t streams[num_streams];
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float *data[num_streams], *yd, *xd;
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float y = 1.0f, x = 1.0f;
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HIPCHECK(hipMalloc((void**)&yd, sizeof(float)));
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HIPCHECK(hipMalloc((void**)&xd, sizeof(float)));
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HIPCHECK(hipMemcpy(yd, &y, sizeof(float), hipMemcpyHostToDevice));
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HIPCHECK(hipMemcpy(xd, &x, sizeof(float), hipMemcpyHostToDevice));
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for(int i=0;i<num_streams;i++){
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HIPCHECK(hipStreamCreate(&streams[i]));
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HIPCHECK(hipMalloc(&data[i], NN * sizeof(float)));
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hipLaunchKernel(HIP_KERNEL_NAME(kernel), dim3(1), dim3(1), 0, streams[i], data[i], xd, N);
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hipLaunchKernel(HIP_KERNEL_NAME(nKernel), dim3(1), dim3(1), 0, 0, yd);
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}
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HIPCHECK(hipMemcpy(&x, xd, sizeof(float), hipMemcpyDeviceToHost));
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HIPCHECK(hipMemcpy(&y, yd, sizeof(float), hipMemcpyDeviceToHost));
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std::cout<<x<<" "<<y<<std::endl;
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HIPASSERT(x == y);
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passed();
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}
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