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Task00 Георгий Кашин ИТМО #28

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Task00 Георгий Кашин ИТМО #28

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54 changes: 53 additions & 1 deletion src/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -68,15 +68,26 @@ 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(...);
OCL_SAFE_CALL(clGetPlatformInfo(platform, CL_PLATFORM_NAME, platformNameSize, &platformName[0], NULL));
std::cout << " Platform name: " << platformName.data() << std::endl;

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

std::vector<unsigned char> vendorName(platformNameSize, 0);
OCL_SAFE_CALL(clGetPlatformInfo(platform, CL_PLATFORM_VENDOR, vendorNameSize, &vendorName[0], NULL));
std::cout << " Vendor name: " << vendorName.data() << std::endl;

// 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_DEFAULT, 0, nullptr, &devicesCount));
std::cout << "Number of OpenCL devices: " << devicesCount << std::endl;

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

for (int deviceIndex = 0; deviceIndex < devicesCount; ++deviceIndex) {
// TODO 2.2
Expand All @@ -85,6 +96,47 @@ 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
cl_device_id device = devices[deviceIndex];

// name
size_t deviceNameSize = 0;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_NAME, 0, nullptr, &deviceNameSize));

std::vector<unsigned char> deviceName(deviceNameSize, 0);
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_NAME, deviceNameSize, &deviceName[0], NULL));
std::cout << " Device name: " << deviceName.data() << std::endl;

// type
cl_device_type type;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_TYPE, sizeof(type), &type, NULL));

if (type & CL_DEVICE_TYPE_CPU) {
std::cout << " Device type: " << "CL_DEVICE_TYPE_CPU" << std::endl;
}
if (type & CL_DEVICE_TYPE_GPU) {
std::cout << " Device type: " << "CL_DEVICE_TYPE_GPU" << std::endl;
}
if (type & CL_DEVICE_TYPE_ACCELERATOR) {
std::cout << " Device type: " << "CL_DEVICE_TYPE_ACCELERATOR" << std::endl;
}
if (type & CL_DEVICE_TYPE_DEFAULT) {
std::cout << " Device type: " << "CL_DEVICE_TYPE_DEFAULT" << std::endl;
}

// memory size
cl_ulong mem_size;
clGetDeviceInfo(device, CL_DEVICE_GLOBAL_MEM_SIZE, sizeof(mem_size), &mem_size, NULL);
std::cout << " Device mem size in MB: " << (unsigned int)(mem_size / (1024 * 1024)) << std::endl;

// freq
cl_uint clock_frequency;
clGetDeviceInfo(device, CL_DEVICE_MAX_CLOCK_FREQUENCY, sizeof(clock_frequency), &clock_frequency, NULL);
std::cout << " Device max clock freq in MHz: " << clock_frequency << std::endl;

// compute units
cl_uint compute_units;
clGetDeviceInfo(device, CL_DEVICE_MAX_COMPUTE_UNITS, sizeof(compute_units), &compute_units, NULL);
std::cout << " Device max compute units: " << compute_units << std::endl;
}
}

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