windows下安装OpenCL

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https://download.csdn.net/download/qq_36314864/87756570

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IDerr = 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;
}