GPU內存分配

Question

我對所有這些（本週開始）都很陌生，因此請友好:) 我需要了解我的內存如何分配到我的GPU卡上。我正在運行帶有6個內核的Intel Xeon CPU和一塊Tesla C2050 GPU卡。我如何找出全局，共享，本地，常量和紋理內存的大小？ 我試過使用deviceQuery代碼，一些已經上傳，但在這一點上，我無法編譯任何cuda代碼。

由於事先

Answer 1

#include "cuda_runtime.h" 
#include "device_launch_parameters.h" 

#include <stdio.h> 


int main(void) { 
cudaDeviceProp prop; 

int count; 

cudaGetDeviceCount(&count); 
printf("This machine has %d CUDA devices availiable for harvesting \n\n", count); 
for (int i=0; i< count; i++) { 

    cudaGetDeviceProperties(&prop, i); 
    printf(" --- General Information for device %d ---\n", i); 
    printf("Name: %s\n", prop.name); 
    printf("Compute capability: %d.%d\n", prop.major, prop.minor); 
    printf("Clock rate: %d\n", prop.clockRate); 
    printf("Device copy overlap: "); 
    if (prop.deviceOverlap) 
     printf("Enabled\n"); 
    else 
     printf("Disabled\n"); 
    printf("Kernel execution timeout : "); 
    if (prop.kernelExecTimeoutEnabled) 
     printf("Enabled\n"); 
    else 
     printf("Disabled\n"); 

    printf(" --- Memory Information for device %d ---\n", i); 
    printf("Total global mem: %ld\n", prop.totalGlobalMem); 
    printf("Total constant Mem: %ld\n", prop.totalConstMem); 
    printf("Max mem pitch: %ld\n", prop.memPitch); 
    printf("Texture Alignment: %ld\n", prop.textureAlignment); 

    printf(" --- MP Information for device %d ---\n", i); 
    printf("Multiprocessor count: %d\n", 
     prop.multiProcessorCount); 
    printf("Shared mem per mp: %ld\n", prop.sharedMemPerBlock); 
    printf("Registers per mp: %d\n", prop.regsPerBlock); 
    printf("Threads in warp: %d\n", prop.warpSize); 
    printf("Max threads per block: %d\n", 
     prop.maxThreadsPerBlock); 
    printf("Max thread dimensions: (%d, %d, %d)\n", 
     prop.maxThreadsDim[0], prop.maxThreadsDim[1], 
     prop.maxThreadsDim[2]); 
    printf("Max grid dimensions: (%d, %d, %d)\n", 
     prop.maxGridSize[0], prop.maxGridSize[1], 
     prop.maxGridSize[2]); 
    printf("\n"); 
    } 
} 

的代碼從Cuda by Example取出（並稍微修改）。這個對我有用。當你嘗試編譯時會得到什麼錯誤信息？