59 lines
1.3 KiB
Plaintext
59 lines
1.3 KiB
Plaintext
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#include <iostream>
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#include "file2.h"
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int file2_launch_kernel(int x);
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int choose_cuda_device()
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{
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int nDevices = 0;
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cudaError_t err = cudaGetDeviceCount(&nDevices);
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if (err != cudaSuccess) {
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std::cerr << "Failed to retrieve the number of CUDA enabled devices"
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<< std::endl;
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return 1;
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}
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for (int i = 0; i < nDevices; ++i) {
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cudaDeviceProp prop;
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cudaError_t err = cudaGetDeviceProperties(&prop, i);
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if (err != cudaSuccess) {
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std::cerr << "Could not retrieve properties from CUDA device " << i
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<< std::endl;
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return 1;
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}
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std::cout << "prop.major: " << prop.major << std::endl;
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if (prop.major >= 3) {
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err = cudaSetDevice(i);
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if (err != cudaSuccess) {
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std::cout << "Could not select CUDA device " << i << std::endl;
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} else {
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return 0;
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}
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}
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}
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std::cout << "Could not find a CUDA enabled card supporting compute >=3.0"
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<< std::endl;
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return 1;
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}
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int main(int argc, char** argv)
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{
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int ret = choose_cuda_device();
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if (ret) {
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return 0;
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}
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file2_launch_kernel(1);
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cudaError_t err = cudaGetLastError();
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if (err != cudaSuccess) {
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std::cerr << "file2_launch_kernel: kernel launch should have passed"
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<< std::endl;
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return 1;
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}
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return 0;
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}
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