相当于OpenCL中的cudaSetDevice？

#include <CL/cl.h>
#include <iostream>

int main() {
    cl_int err;
    cl_platform_id platform;
    cl_device_id device;
    cl_context context;

    // 获取平台
    err = clGetPlatformIDs(1, &platform, NULL);
    if (err != CL_SUCCESS) {
        std::cerr << "Failed to get platform ID." << std::endl;
        return -1;
    }

    // 获取设备
    err = clGetDeviceIDs(platform, CL_DEVICE_TYPE_GPU, 1, &device, NULL);
    if (err != CL_SUCCESS) {
        std::cerr << "Failed to get device ID." << std::endl;
        return -1;
    }

    // 设置设备
    err = clSetDevice(device);
    if (err != CL_SUCCESS) {
        std::cerr << "Failed to set device." << std::endl;
        return -1;
    }

    // 创建上下文
    context = clCreateContext(NULL, 1, &device, NULL, NULL, &err);
    if (err != CL_SUCCESS) {
        std::cerr << "Failed to create context." << std::endl;
        return -1;
    }

    // 其他操作...

    return 0;
}