C/C++教程

cuda 编 程（三） helloworld 打印 blockIdx和threadIdx.x threadIdx.y

本文主要是介绍cuda 编 程（三） helloworld 打印 blockIdx和threadIdx.x threadIdx.y，对大家解决编程问题具有一定的参考价值，需要的程序猿们随着小编来一起学习吧！ 
#include <stdio.h>
#include <iostream>
using namespace std;

__global__ void hello_from_gpu()
{
    const int b = blockIdx.x;
    const int tx = threadIdx.x;
    const int ty = threadIdx.y;
   // cout<<b<<endl;
    printf("Hello World from block-%d and thread-(%d, %d)!\n", b, tx, ty);
}

int main(void)
{
    const dim3 block_size(2, 4);
    hello_from_gpu<<<2, block_size>>>();
    cudaDeviceSynchronize();
    return 0;
}


nvcc hello5.cu -o hello5
./hello5

Hello World from block-1 and thread-(0, 0)!
Hello World from block-1 and thread-(1, 0)!
Hello World from block-1 and thread-(0, 1)!
Hello World from block-1 and thread-(1, 1)!
Hello World from block-1 and thread-(0, 2)!
Hello World from block-1 and thread-(1, 2)!
Hello World from block-1 and thread-(0, 3)!
Hello World from block-1 and thread-(1, 3)!
Hello World from block-0 and thread-(0, 0)!
Hello World from block-0 and thread-(1, 0)!
Hello World from block-0 and thread-(0, 1)!
Hello World from block-0 and thread-(1, 1)!
Hello World from block-0 and thread-(0, 2)!
Hello World from block-0 and thread-(1, 2)!
Hello World from block-0 and thread-(0, 3)!
Hello World from block-0 and thread-(1, 3)!
这篇关于cuda 编 程（三） helloworld 打印 blockIdx和threadIdx.x threadIdx.y的文章就介绍到这儿，希望我们推荐的文章对大家有所帮助，也希望大家多多支持为之网！
您可能喜欢
栏目导航