// Enqueues a kernel, waits for completion, and checks for errors void RunKernel(Kernel &kernel, Queue &queue, const Device &device, std::vector<size_t> global, const std::vector<size_t> &local, EventPointer event, const std::vector<Event> &waitForEvents) { if (!local.empty()) { // Tests for validity of the local thread sizes if (local.size() > device.MaxWorkItemDimensions()) { throw RuntimeErrorCode(StatusCode::kInvalidLocalNumDimensions); } const auto max_work_item_sizes = device.MaxWorkItemSizes(); for (auto i=size_t{0}; i<local.size(); ++i) { if (local[i] > max_work_item_sizes[i]) { throw RuntimeErrorCode(StatusCode::kInvalidLocalThreadsDim); } } auto local_size = size_t{1}; for (auto &item: local) { local_size *= item; } if (local_size > device.MaxWorkGroupSize()) { throw RuntimeErrorCode(StatusCode::kInvalidLocalThreadsTotal); } // Make sure the global thread sizes are at least equal to the local sizes for (auto i=size_t{0}; i<global.size(); ++i) { if (global[i] < local[i]) { global[i] = local[i]; } } } // Tests for local memory usage const auto local_mem_usage = kernel.LocalMemUsage(device); if (!device.IsLocalMemoryValid(local_mem_usage)) { throw RuntimeErrorCode(StatusCode::kInvalidLocalMemUsage); } // Prints the name of the kernel to launch in case of debugging in verbose mode #ifdef VERBOSE queue.Finish(); printf("[DEBUG] Running kernel '%s'\n", kernel.GetFunctionName().c_str()); const auto start_time = std::chrono::steady_clock::now(); #endif // Launches the kernel (and checks for launch errors) kernel.Launch(queue, global, local, event, waitForEvents); // Prints the elapsed execution time in case of debugging in verbose mode #ifdef VERBOSE queue.Finish(); const auto elapsed_time = std::chrono::steady_clock::now() - start_time; const auto timing = std::chrono::duration<double,std::milli>(elapsed_time).count(); printf("[DEBUG] Completed kernel in %.2lf ms\n", timing); #endif }