如何編寫CUDA代碼來打印出支持CUDA的設備？

Question

如何編寫CUDA代碼以在計算機上打印支持CUDA的設備。

Answer 1

這是直接從NVIDIA的開發者網站：

#include <stdio.h> 

int main() { 
    int nDevices; 

    cudaGetDeviceCount(&nDevices); 
    for (int i = 0; i < nDevices; i++) { 
    cudaDeviceProp prop; 
    cudaGetDeviceProperties(&prop, i); 
    printf("Device Number: %d\n", i); 
    printf(" Device name: %s\n", prop.name); 
    printf(" Memory Clock Rate (KHz): %d\n", 
      prop.memoryClockRate); 
    printf(" Memory Bus Width (bits): %d\n", 
      prop.memoryBusWidth); 
    printf(" Peak Memory Bandwidth (GB/s): %f\n\n", 
      2.0*prop.memoryClockRate*(prop.memoryBusWidth/8)/1.0e6); 
    } 
} 

從他們的文檔：

http://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#device-enumeration

int deviceCount; 
cudaGetDeviceCount (&deviceCount); 
int device; 
for (device = 0; device < deviceCount; ++device) { 
    cudaDeviceProp deviceProp; 
    cudaGetDeviceProperties (&deviceProp, device); 
    printf ("Device %d has compute capability %d.%d.\n", device, 
     deviceProp.major, deviceProp.minor); 
} 

注

設備從1列舉...