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Task00 Igor Bereza SPbU #3

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Task00 Igor Bereza SPbU #3

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78 changes: 76 additions & 2 deletions src/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -67,16 +67,27 @@ int main() {

// TODO 1.2
// Аналогично тому, как был запрошен список идентификаторов всех платформ - так и с названием платформы, теперь, когда известна длина названия - его можно запросить:
std::vector<unsigned char> platformName(platformNameSize, 0);
// clGetPlatformInfo(...);
std::vector <char> platformName(platformNameSize, 0);
OCL_SAFE_CALL(clGetPlatformInfo(platform, CL_PLATFORM_NAME, platformName.size(), platformName.data(), nullptr));
std::cout << " Platform name: " << platformName.data() << std::endl;

// TODO 1.3
// Запросите и напечатайте так же в консоль вендора данной платформы
size_t platform_vendor_size = 0;
OCL_SAFE_CALL(clGetPlatformInfo(platform, CL_PLATFORM_VENDOR, 0, nullptr, &platform_vendor_size));

std::vector <char> platform_vendor_name(platform_vendor_size, 0);
OCL_SAFE_CALL(clGetPlatformInfo(platform, CL_PLATFORM_VENDOR, platform_vendor_name.size(), platform_vendor_name.data(), nullptr));
printf(" Vendor name: %s\n", platform_vendor_name.data());

// TODO 2.1
// Запросите число доступных устройств данной платформы (аналогично тому, как это было сделано для запроса числа доступных платформ - см. секцию "OpenCL Runtime" -> "Query Devices")
cl_uint devicesCount = 0;
OCL_SAFE_CALL(clGetDeviceIDs(platform, CL_DEVICE_TYPE_ALL, 0, nullptr, &devicesCount));
printf(" Number of OpenCL devices: %u\n", devicesCount);

std::vector <cl_device_id> devices(devicesCount, 0);
OCL_SAFE_CALL(clGetDeviceIDs(platform, CL_DEVICE_TYPE_ALL, devices.size(), devices.data(), nullptr));

for (int deviceIndex = 0; deviceIndex < devicesCount; ++deviceIndex) {
// TODO 2.2
Expand All @@ -85,6 +96,69 @@ int main() {
// - Тип устройства (видеокарта/процессор/что-то странное)
// - Размер памяти устройства в мегабайтах
// - Еще пару или более свойств устройства, которые вам покажутся наиболее интересными

auto device = devices[deviceIndex];

// Print device index:
printf(" Device #%d/%d\n", deviceIndex + 1, devicesCount);

// Print device name:
{
size_t device_name_size = 0;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_NAME, 0, nullptr, &device_name_size));

std::vector <char> device_name(device_name_size, 0);
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_NAME, device_name.size(), device_name.data(), nullptr));

printf(" Device name: %s\n", device_name.data());
}

// Print device type:
{
cl_device_type device_type;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_TYPE, sizeof(device_type), &device_type, nullptr));

char *device_type_str = nullptr;
switch (device_type) {
case CL_DEVICE_TYPE_CPU:
device_type_str = "CPU";
break;
case CL_DEVICE_TYPE_GPU:
device_type_str = "GPU";
break;
case CL_DEVICE_TYPE_ACCELERATOR:
device_type_str = "Dedicated accelerator";
break;
default:
device_type_str = "Unknown";
}
printf(" Device type: %s\n", device_type_str);
}

// Print memory size in megabytes:
{
cl_ulong memory_size;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_GLOBAL_MEM_SIZE, sizeof(memory_size), &memory_size, nullptr));
printf(" Memory size: %f Mb\n", memory_size / (1024.0 * 1024.0));
}

// Print driver version:
{
size_t driver_version_size = 0;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DRIVER_VERSION, 0, nullptr, &driver_version_size));

std::vector <char> driver_version(driver_version_size, 0);
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DRIVER_VERSION, driver_version.size(), driver_version.data(), nullptr));

printf(" Driver version: %s\n", driver_version.data());
}

// Print max parameter size:
{
size_t max_parameter_size = 0;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_MAX_PARAMETER_SIZE, sizeof(max_parameter_size), &max_parameter_size, nullptr));
printf(" Max parameter size: %llu b\n", max_parameter_size);
}
}
}

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