CUDA测试设备属性的代码

#include <cuda_runtime.h>

#include <cuda.h>

#include <device_launch_parameters.h>

bool CUDA_initial(void)

{

int i;

int device_count;

if( cudaGetDeviceCount(&device_count) )

{

printf(" There is zero device beyond 1.0/n");

return false;

}

else

{

printf("There is %d device beyond 1.0/n",device_count);

}

for(i=0;i<device_count;i++)

{

struct cudaDeviceProp device_prop;

if(cudaGetDeviceProperties(&device_prop,i)==cudaSuccess)

{

printf("device properties is :\n"

" device name is %s\n"

"/t totalGlobalMem is %d\n"

"/t sharedMemPerBlock is %d\n"

"/t regsPerBlock is %d\n"

"/t warpSize is %d\n"

"/t memPitch is %d\n"

"/t maxThreadsPerBlock is %d\n"

"/t maxThreadsDim [3] is %d X %d X %d\n"

"/t maxGridSize [3] is %d X %d X %d\n"

"/t totalConstMem is %d\n"

"/t device version is major %d ,minor %d\n"

"/t clockRate is %d\n"

"/t textureAlignment is %d\n"

"/t deviceOverlap is %d\n"

"/t multiProcessorCount is %d\n",

device_prop.name,

device_prop.totalGlobalMem,

device_prop.sharedMemPerBlock,

device_prop.regsPerBlock,

device_prop.warpSize,

device_prop.memPitch,

device_prop.maxThreadsPerBlock,

device_prop.maxThreadsDim[0],device_prop.maxThreadsDim[1],device_prop.maxThreadsDim[2],

device_prop.maxGridSize[0],device_prop.maxGridSize[1],device_prop.maxGridSize[2],

device_prop.totalConstMem,

device_prop.major,device_prop.minor,

device_prop.clockRate,

device_prop.textureAlignment,

device_prop.deviceOverlap,

device_prop.multiProcessorCount);

break;

}

}



if(i==device_count)

{

printf("\nGet the propertites of device occurred error\n");

return false;

}

if(cudaSetDevice(i)==cudaErrorInvalidDevice)

{

printf("\nSet Device occurred error\n");

return false;

}

}

int main()

{

if (CUDA_initial() == true)

printf("CUDA initial successed!\n");

getchar();

return 0;

}