windows下如何安装OpenCL

Ophelia ·

更新时间:2024-11-13

· 1176 次阅读

由于我的电脑是windows10，显卡是集显Intel® UHD Graphics 630。

下载Intel的SDK for OpenCL，下载地址https://software.intel.com/en-us/opencl-sdk/choose-download，也可以在我的资源里面直接下载

http://xiazai.jb51.net/202305/yuanma/intel_sdk_for_opencl_applications_283428.rar

运行install.exe，安装

运行后，如果vs打开了需要关闭。

默认安装路径在C:\Program Files (x86)\IntelSWTools，找到OpenCL安装位置在C:\Program Files (x86)\IntelSWTools\system_studio_2020\OpenCL

配置环境变量，发现以及自动配置到里面了

下载intel提供测试工具，下载地址：https://download.csdn.net/download/qq_36314864/87756581然后下载了直接运行，打印如下表示安装成功。

自己搭建一个OpenCL工程，创建一个C++控制台工程

打开配置属性，包含OpenCL的头文件，即将C:\Program Files (x86)\IntelSWTools\system_studio_2020\OpenCL\sdk\include

添加依赖项，如果工程是x64，就在C:\Program Files (x86)\IntelSWTools\system_studio_2020\OpenCL\sdk\lib\x64下面，如果x86就依赖x86下面的

拷贝下面测试代码替换helloword

#include <cstdlib>
#include <iostream>
#include <iomanip>
#include <cstring>
#include <cassert>
#include <CL/cl.h>
/*
 * 修改自官方示例intel_ocl_caps_basic_win，用于测试手工配置项目
*/
int main()
{
    using namespace std;
    const char* required_platform_subname = "Intel";
    //函数返回值，CL_SUCCESS表示成功
    cl_int err = CL_SUCCESS;
    // 判断返回值是否正确的宏
#define CAPSBASIC_CHECK_ERRORS(ERR)        \
    if(ERR != CL_SUCCESS)                  \
    {                                      \
    cerr                                   \
    << "OpenCL error with code " << ERR    \
    << " happened in file " << __FILE__    \
    << " at line " << __LINE__             \
    << ". Exiting...\n";                   \
    exit(1);                               \
    }
    // 遍历系统中所有OpenCL平台
    cl_uint num_of_platforms = 0;
    // 得到平台数目
    err = clGetPlatformIDs(0, 0, &num_of_platforms);
    CAPSBASIC_CHECK_ERRORS(err);
    cout << "Number of available platforms: " << num_of_platforms << endl;
    cl_platform_id* platforms = new cl_platform_id[num_of_platforms];
    // 得到所有平台的ID
    err = clGetPlatformIDs(num_of_platforms, platforms, 0);
    CAPSBASIC_CHECK_ERRORS(err);
    //列出所有平台
    cl_uint selected_platform_index = num_of_platforms;
    cout << "Platform names:\n";
    for (cl_uint i = 0; i < num_of_platforms; ++i)
    {
        size_t platform_name_length = 0;
        err = clGetPlatformInfo(
            platforms[i],
            CL_PLATFORM_NAME,
            0,
            0,
            &platform_name_length
        );
        CAPSBASIC_CHECK_ERRORS(err);
        // 调用两次，第一次是得到名称的长度
        char* platform_name = new char[platform_name_length];
        err = clGetPlatformInfo(
            platforms[i],
            CL_PLATFORM_NAME,
            platform_name_length,
            platform_name,
            NULL
        );
        CAPSBASIC_CHECK_ERRORS(err);
        cout << "    [" << i << "] " << platform_name;
        if (
            strstr(platform_name, required_platform_subname) &&
            selected_platform_index == num_of_platforms // have not selected yet
            )
        {
            cout << " [Selected]";
            selected_platform_index = i;
        }
        cout << endl;
        delete[] platform_name;
    }
    delete[] platforms;
    return 0;
}