CUDA编程——打印显卡属性

/*** *打印显卡属性 *2017-11-8 * ***/#include<iostream>using namespace std;int main(){    int deviceCount;    cudaGetDeviceCount(&deviceCount);//Returns in *deviceCount the number of devices    cout<<"deviceCount:   "<<deviceCount<<"\n\n";    if (deviceCount == 0)    {        cout<< "error: no devices supporting CUDA.\n";        exit(EXIT_FAILURE);    }    int dev = 0;    cudaSetDevice(dev);//Sets dev=0 device as the current device for the calling host thread.    cudaDeviceProp devProps;    cudaGetDeviceProperties(&devProps, dev);    cout<<"name: "<<devProps.name<<"\n";    cout<<"totalGlobalMem: "<<devProps.totalGlobalMem<<"\n";    cout<<"regsPerBlock: "<<devProps.regsPerBlock<<"\n";    cout<<"warpSize: "<<devProps.warpSize<<"\n";    cout<<"memPitch: "<<devProps.memPitch<<"\n\n";    cout<<"一个线程块中可使用的最大共享内存\n";    cout<<"devProps.sharedMemPerBlock: "<<devProps.sharedMemPerBlock<<"\n\n";cout<<"一个线程块中可包含的最大线程数量\n";    cout<<"maxThreadsPerBlock: "<<devProps.maxThreadsPerBlock<<"\n\n";cout<<"多维线程块数组中每一维可包含的最大线程数量\n";    cout<<"maxThreadsDim[0]: "<<devProps.maxThreadsDim[0]<<"\n";    cout<<"maxThreadsDim[1]: "<<devProps.maxThreadsDim[1]<<"\n";    cout<<"maxThreadsDim[2]: "<<devProps.maxThreadsDim[2]<<"\n\n";cout<<"一个线程格中每一维可包含的最大线程块数量\n";    cout<<"maxGridSize[0]: "<<devProps.maxGridSize[0]<<"\n";    cout<<"maxGridSize[1]: "<<devProps.maxGridSize[1]<<"\n";    cout<<"maxGridSize[2]: "<<devProps.maxGridSize[2]<<"\n\n";    cout<<"clockRate: "<<devProps.clockRate<<"\n";    cout<<"totalConstMem: "<<devProps.totalConstMem<<"\n";    cout<<"textureAlignment: "<<devProps.textureAlignment<<"\n\n";    cout<<"计算能力："<<devProps.major<< "." <<devProps.minor<<"\n\n";    cout<<"minor: "<<devProps.minor<<"\n";    cout<<"texturePitchAlignment: "<<devProps.texturePitchAlignment<<"\n";    cout<<"deviceOverlap: "<<devProps.deviceOverlap<<"\n";    cout<<"multiProcessorCount: "<<devProps.multiProcessorCount<<"\n";    cout<<"kernelExecTimeoutEnabled: "<<devProps.kernelExecTimeoutEnabled<<"\n";    cout<<"integrated: "<<devProps.integrated<<"\n";    cout<<"canMapHostMemory: "<<devProps.canMapHostMemory<<"\n";    cout<<"computeMode: "<<devProps.computeMode<<"\n";    cout<<"maxTexture1D: "<<devProps.maxTexture1D<<"\n";    cout<<"maxTexture1DMipmap: "<<devProps.maxTexture1DMipmap<<"\n";    cout<<"maxTexture1DLinear: "<<devProps.maxTexture1DLinear<<"\n";    cout<<"maxTexture2D: "<<devProps.maxTexture2D<<"\n";    cout<<"maxTexture2DMipmap: "<<devProps.maxTexture2DMipmap<<"\n";    cout<<"maxTexture2DLinear: "<<devProps.maxTexture2DLinear<<"\n";    cout<<"maxTexture2DGather: "<<devProps.maxTexture2DGather<<"\n";    cout<<"maxTexture3D: "<<devProps.maxTexture3D<<"\n";    cout<<"maxTexture3DAlt: "<<devProps.maxTexture3DAlt<<"\n";    cout<<"maxTextureCubemap: "<<devProps.maxTextureCubemap<<"\n";    cout<<"maxTexture1DLayered: "<<devProps.maxTexture1DLayered<<"\n";    cout<<"maxTexture2DLayered: "<<devProps.maxTexture2DLayered<<"\n";    cout<<"maxTextureCubemapLayered: "<<devProps.maxTextureCubemapLayered<<"\n";    cout<<"maxSurface1D: "<<devProps.maxSurface1D<<"\n";    cout<<"maxSurface2D: "<<devProps.maxSurface2D<<"\n";    cout<<"maxSurface3D: "<<devProps.maxSurface3D<<"\n";    cout<<"maxSurface1DLayered: "<<devProps.maxSurface1DLayered<<"\n";    cout<<"maxSurface2DLayered: "<<devProps.maxSurface2DLayered<<"\n";    cout<<"maxSurfaceCubemap: "<<devProps.maxSurfaceCubemap<<"\n";    cout<<"maxSurfaceCubemapLayered: "<<devProps.maxSurfaceCubemapLayered<<"\n";    cout<<"surfaceAlignment: "<<devProps.surfaceAlignment<<"\n";    cout<<"concurrentKernels: "<<devProps.concurrentKernels<<"\n";    cout<<"ECCEnabled: "<<devProps.ECCEnabled<<"\n";    cout<<"pciBusID: "<<devProps.pciBusID<<"\n";    cout<<"pciDeviceID: "<<devProps.pciDeviceID<<"\n";    cout<<"pciDomainID: "<<devProps.pciDomainID<<"\n";    cout<<"tccDriver: "<<devProps.tccDriver<<"\n";    cout<<"asyncEngineCount: "<<devProps.asyncEngineCount<<"\n";    cout<<"unifiedAddressing: "<<devProps.unifiedAddressing<<"\n";    cout<<"memoryClockRate: "<<devProps.memoryClockRate<<"\n";    cout<<"memoryBusWidth: "<<devProps.memoryBusWidth<<"\n";    cout<<"l2CacheSize: "<<devProps.l2CacheSize<<"\n";    cout<<"maxThreadsPerMultiProcessor: "<<devProps.maxThreadsPerMultiProcessor<<"\n";    cout<<"streamPrioritiesSupported: "<<devProps.streamPrioritiesSupported<<"\n";    cout<<"globalL1CacheSupported: "<<devProps.globalL1CacheSupported<<"\n";    cout<<"localL1CacheSupported: "<<devProps.localL1CacheSupported<<"\n";    cout<<"sharedMemPerMultiprocessor: "<<devProps.sharedMemPerMultiprocessor<<"\n";    cout<<"regsPerMultiprocessor: "<<devProps.regsPerMultiprocessor<<"\n";    cout<<"isMultiGpuBoard: "<<devProps.isMultiGpuBoard<<"\n";    cout<<"multiGpuBoardGroupID: "<<devProps.multiGpuBoardGroupID<<"\n";    cout<<"singleToDoublePrecisionPerfRatio: "<<devProps.singleToDoublePrecisionPerfRatio<<"\n";    cout<<"pageableMemoryAccess: "<<devProps.pageableMemoryAccess<<"\n";    cout<<"concurrentManagedAccess: "<<devProps.concurrentManagedAccess<<"\n";}

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运行结果如下：

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deviceCount:   1

name: GeForce GTX 1070
totalGlobalMem: 8504279040
regsPerBlock: 65536
warpSize: 32
memPitch: 2147483647

一个线程块中可使用的最大共享内存
devProps.sharedMemPerBlock: 49152

一个线程块中可包含的最大线程数量
maxThreadsPerBlock: 1024

多维线程块数组中每一维可包含的最大线程数量
maxThreadsDim[0]: 1024
maxThreadsDim[1]: 1024
maxThreadsDim[2]: 64

一个线程格中每一维可包含的最大线程块数量
maxGridSize[0]: 2147483647
maxGridSize[1]: 65535
maxGridSize[2]: 65535

clockRate: 1784500
totalConstMem: 65536
textureAlignment: 512

计算能力：6.1

minor: 1
texturePitchAlignment: 32
deviceOverlap: 1
multiProcessorCount: 15
kernelExecTimeoutEnabled: 1
integrated: 0
canMapHostMemory: 1
computeMode: 0
maxTexture1D: 131072
maxTexture1DMipmap: 16384
maxTexture1DLinear: 134217728
maxTexture2D: 0x7fff28079944
maxTexture2DMipmap: 0x7fff2807994c
maxTexture2DLinear: 0x7fff28079954
maxTexture2DGather: 0x7fff28079960
maxTexture3D: 0x7fff28079968
maxTexture3DAlt: 0x7fff28079974
maxTextureCubemap: 32768
maxTexture1DLayered: 0x7fff28079984
maxTexture2DLayered: 0x7fff2807998c
maxTextureCubemapLayered: 0x7fff28079998
maxSurface1D: 32768
maxSurface2D: 0x7fff280799a4
maxSurface3D: 0x7fff280799ac
maxSurface1DLayered: 0x7fff280799b8
maxSurface2DLayered: 0x7fff280799c0
maxSurfaceCubemap: 32768
maxSurfaceCubemapLayered: 0x7fff280799d0
surfaceAlignment: 512
concurrentKernels: 1
ECCEnabled: 0
pciBusID: 2
pciDeviceID: 0
pciDomainID: 0
tccDriver: 0
asyncEngineCount: 2
unifiedAddressing: 1
memoryClockRate: 4004000
memoryBusWidth: 256
l2CacheSize: 2097152
maxThreadsPerMultiProcessor: 2048
streamPrioritiesSupported: 1
globalL1CacheSupported: 1
localL1CacheSupported: 1
sharedMemPerMultiprocessor: 98304
regsPerMultiprocessor: 65536
isMultiGpuBoard: 0
multiGpuBoardGroupID: 0
singleToDoublePrecisionPerfRatio: 32
pageableMemoryAccess: 0
concurrentManagedAccess: 1