Question

我从推力webpage下载了推力1.70和1.60到我的主目录/home/me/project/thrust。当我尝试使用gcc -c -I/home/me/project thrust_1_example.cpp运行下面的example时，收到了找不到标题文件的错误消息：In file included from /home/me/project/thrust/detail/config.h:22, from /home/me/project/thrust/host_vector.h:24, from thrust_1_example.cpp:1: /home/me/project/thrust/detail/config/config.h:25:49: error: thrust/detail/config/simple_defines.h: No such file or directory

我发现detail/config确实是空的。我错过了什么吗？

#include <thrust/host_vector.h>
#include <thrust/device_vector.h>

#include <iostream>

int main(void)
{
    // H has storage for 4 integers
    thrust::host_vector<int> H(4);

    // initialize individual elements
    H[0] = 14;
    H[1] = 20;
    H[2] = 38;
    H[3] = 46;

    // H.size() returns the size of vector H
    std::cout << "H has size " << H.size() << std::endl;

    // print contents of H
    for(int i = 0; i < H.size(); i++)
        std::cout << "H[" << i << "] = " << H[i] << std::endl;

    // resize H
    H.resize(2);

    std::cout << "H now has size " << H.size() << std::endl;

    // Copy host_vector H to device_vector D
    thrust::device_vector<int> D = H;

    // elements of D can be modified
    D[0] = 99;
    D[1] = 88;

    // print contents of D
    for(int i = 0; i < D.size(); i++)
        std::cout << "D[" << i << "] = " << D[i] << std::endl;

    // H and D are automatically deleted when the function returns
    return 0;
}

Answer 1

如果您只是安装CUDA 5.5，您将获得推力1.7。

如果您的目标是GPU后端（意味着您想在GPU上运行推力代码），则需要nvcc，即GPU设备代码编译器/编译器驱动程序，它随CUDA 5.5一起提供。

您无法使用gcc构建推力GPU代码（必须使用nvcc），文件名应以.cu而不是.cpp

结尾

在编译推力示例代码时没有找到头文件

1 个答案: