// test.cpp #include <sycl/sycl.hpp> #include <iostream> #include <thread> #include <chrono> int main(int argc, char *argv[]) { sycl::queue queue(sycl::property::queue::in_order{}); std::cout << "Using device: " << queue.get_device().get_info<sycl::info::device::name>() << "\n"; int repeat = 10000; if (argc > 1) { repeat = std::stoi(std::string(argv[1])); } int data = 0; std::cout << "Submitting " << repeat << " host tasks...\n"; auto start_time = std::chrono::high_resolution_clock::now(); for (int i = 0; i < repeat; i++) { std::this_thread::sleep_for(std::chrono::microseconds(500)); auto e = queue.submit([&](sycl::handler &cgh) { cgh.host_task([&]() { // Simulate some work on the host std::this_thread::sleep_for(std::chrono::milliseconds(1)); data++; }); }); #ifdef WAIT e.wait(); #endif } queue.wait(); auto end_time = std::chrono::high_resolution_clock::now(); std::cout << "Total execution time: " << std::chrono::duration_cast<std::chrono::milliseconds>(end_time - start_time).count() << " ms\n"; if (data != repeat) { std::cerr << "Error: data mismatch! Expected " << repeat << ", got " << data << "\n"; return 1; } return 0; }