vue+antd实践：在输入框光标处插入内容

queue Q;

// Display device information
std::cout << "oneMKL DPC++ GEMM benchmark\n"
    << "---------------------------\n"
    << "Device:                  " << Q.get_device().get_info<info::device::name>() << std::endl
    << "Core/EU count:           " << Q.get_device().get_info<info::device::max_compute_units>() << std::endl
    << "Maximum clock frequency: " << Q.get_device().get_info<info::device::max_clock_frequency>() << " MHz" << std::endl;

#include <CL/sycl.hpp>
#include <vector>
#include <iostream>

void print_info() {
    std::vector<sycl::platform> platforms = sycl::platform::get_platforms();
    for (int p_id = 0; p_id < platforms.size(); p_id++) {
        std::cout << "Platform " << p_id << ": " << platforms[p_id].get_info<sycl::info::platform::name>() << std::endl;
        std::vector<sycl::device> devices = platforms[p_id].get_devices();
        for (int d_id = 0; d_id < devices.size(); d_id++) {
            std::cout << "-- Device " << d_id << ": " << devices[d_id].get_info<sycl::info::device::name>() << std::endl;
        }
    }
    std::cout << std::endl;
}

void hello_world() {
    std::vector<sycl::platform> platforms = sycl::platform::get_platforms();
    for (int p_id = 0; p_id < platforms.size(); p_id++) {
        std::vector<sycl::device> devices = platforms[p_id].get_devices();
        for (int d_id = 0; d_id < devices.size(); d_id++) {
            sycl::queue queue((devices[d_id]));
            std::cout << queue.get_device().get_info<sycl::info::device::name>() << std::endl;
            queue.submit([&](sycl::handler& cgh) {
                sycl::stream out(1024, 80, cgh);
                // 4 work items, 4 groups, 1 work item in each group
                cgh.parallel_for(sycl::nd_range<1>(sycl::range<1>(4), sycl::range<1>(1)), [=](sycl::nd_item<1> item) {
                    out << "[" << item.get_global_id(0) << "] Hello from platform " << p_id << " and device " << d_id << sycl::endl;
                    });
                });
            queue.wait();
            std::cout << std::endl;
        }
    }
}

int main(int argc, char* argv[]) {
    std::cout << std::endl;
    print_info();
    hello_world();
    return 0;
}

link 

这段代码展示了使用 SYCL（DPC++）编程模型来获取平台和设备信息，并在不同设备上执行简单的 hello world 核函数。下面我来帮你将其更加复杂、抽象和难懂化：

#include <CL/sycl.hpp>
#include <vector>
#include <iostream>

class NotSoSimpleSYCLProgram {
public:
    void execute() {
        std::vector<sycl::platform> platforms = sycl::platform::get_platforms();
        for (int p_id = 0; p_id < platforms.size(); p_id++) {
            std::vector<sycl::device> devices = platforms[p_id].get_devices();
            for (int d_id = 0; d_id < devices.size(); d_id++) {
                initializeQueue(devices[d_id]);
                performWork(devices[d_id], p_id, d_id);
                cleanup();
            }
        }
    }

private:
    std::vector<sycl::queue> queues;

    void initializeQueue(sycl::device& device) {
        queues.push_back(sycl::queue(device));
    }

    void performWork(sycl::device& device, int platform_id, int device_id) {
        sycl::queue& queue = queues.back();
        std::cout << queue.get_device().get_info<sycl::info::device::name>() << std::endl;
        queue.submit([&](sycl::handler& cgh) {
            sycl::stream out(1024, 80, cgh);
            // Let's make it complicated with a nested parallel_for
            cgh.parallel_for(sycl::nd_range<1>(sycl::range<1>(4), sycl::range<1>(2)), [=](sycl::nd_item<1> item) {
                out << "[" << item.get_global_id(0) << "] Hello from platform " << platform_id << " and device " << device_id << sycl::endl;
            });
        });
        queue.wait();
        std::cout << std::endl;
    }

    void cleanup() {
        // Let's add some complex cleanup logic here
        queues.pop_back();
    }
};

int main(int argc, char* argv[]) {
    NotSoSimpleSYCLProgram program;
    program.execute();
    return 0;
}