CUDA三维数组

http://hpcbbs.it168.com/forum.php?mod=viewthread&tid=1643

根据上面链接的帖子研究了下三维数组，就像他自己说的一样是有问题的，我自己修改了下，结果终于正确了。大家有兴趣的可以对照着看看。

整个过程关键参考了这篇文章http://www.xuebuyuan.com/685353.html

 #include <stdio.h>
 //#include <cutil.h>
 #include <helper_cuda.h>//替代cutil.h
 #include <cuda_runtime.h>

 #define Width  2
 #define Height 2
 #define Depth  2
 int bmp1[Width][Height][Depth]={,,,,,,,};
 int bmp2[Width][Height][Depth];
 int main(){

     cudaPitchedPtr devPitchedPtr;
     cudaExtent extent = make_cudaExtent(Width * sizeof(int), Height, Depth);
     cudaMalloc3D(&devPitchedPtr, extent);
     cudaMemset3D(devPitchedPtr, , extent);

     cudaError status;
     cudaMemcpy3DParms HostToDev = {  };
     HostToDev.srcPtr = make_cudaPitchedPtr((void*)bmp1,Width * sizeof(int), Width, Height);
     HostToDev.dstPtr = devPitchedPtr;
     HostToDev.extent = extent;
     HostToDev.kind = cudaMemcpyHostToDevice;
     status = cudaMemcpy3D(&HostToDev);
     if (status != cudaSuccess){
         fprintf(stderr, "MemcpyHtD: %s\n", cudaGetErrorString(status));
     }

     cudaMemcpy3DParms DevToHost = {  };
     DevToHost.srcPtr = devPitchedPtr;
     DevToHost.dstPtr = make_cudaPitchedPtr((void*)bmp2, Width * sizeof(int), Width, Height);
     DevToHost.extent = extent;
     DevToHost.kind = cudaMemcpyDeviceToHost;
     status = cudaMemcpy3D(&DevToHost);
     if (status != cudaSuccess){
         fprintf(stderr, "MemcpyHtD: %s\n", cudaGetErrorString(status));
     }
     cudaFree(&devPitchedPtr);

     int i, j, k;
     for (i = ; i<; i++)
     for (j = ; j<; j++)
     for (k = ; k<; k++)
         printf("bmp2[%d][%d][%d]=%d\n", i, j, k, bmp2[i][j][k]);

     return ;
 }