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Task00 Андрей Гладких ITMO #6

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Task00 Андрей Гладких ITMO #6

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a8b5f6e
Task00 done
FollowJust Sep 15, 2024
66317df
fixed mbytes conversion
FollowJust Sep 15, 2024
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96 changes: 95 additions & 1 deletion src/main.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -68,15 +68,25 @@ 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.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 platformVendorSize = 0;
OCL_SAFE_CALL(clGetPlatformInfo(platform, CL_PLATFORM_VENDOR, 0, nullptr, &platformVendorSize));

std::vector<unsigned char> platformVendor(platformVendorSize, 0);
OCL_SAFE_CALL(clGetPlatformInfo(platform, CL_PLATFORM_VENDOR, platformVendorSize, platformVendor.data(), nullptr));
std::cout << " Vendor: " << platformVendor.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_ALL, 0, nullptr, &devicesCount));

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

for (int deviceIndex = 0; deviceIndex < devicesCount; ++deviceIndex) {
// TODO 2.2
Expand All @@ -85,6 +95,90 @@ 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

std::cout << " Devices #" << (deviceIndex + 1) << "/" << devicesCount << std::endl;

cl_device_id device = devices[deviceIndex];

// Device 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.data(), nullptr));

std::cout << " Name: " << deviceName.data() << std::endl;
}

// Device Type
{
cl_device_type deviceType = 0;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_TYPE, sizeof(cl_device_type), &deviceType, nullptr));

std::string deviceTypeString;
switch (deviceType) {
case CL_DEVICE_TYPE_CPU:
deviceTypeString = "CPU";
break;
case CL_DEVICE_TYPE_GPU:
deviceTypeString = "GPU";
break;
case CL_DEVICE_TYPE_ACCELERATOR:
deviceTypeString = "ACCELERATOR";
break;
case CL_DEVICE_TYPE_DEFAULT:
deviceTypeString = "DEFAULT";
break;
default:
throw std::runtime_error("Unknown device type!");
}

std::cout << " Type: " << deviceTypeString << std::endl;
}

// Device Global Memory Size
{
cl_ulong deviceGlobalMemorySize = 0;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_GLOBAL_MEM_SIZE, sizeof(cl_ulong),
&deviceGlobalMemorySize, nullptr));

std::cout << " Global Memory (MBytes): " << deviceGlobalMemorySize / 1024 / 1024 << std::endl;
}

// Device OpenCL Version
{
size_t deviceOpenCLVersionParamSize = 0;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_VERSION, 0, nullptr, &deviceOpenCLVersionParamSize));

std::vector<unsigned char> deviceOpenCLVersion(deviceOpenCLVersionParamSize, 0);
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_VERSION, deviceOpenCLVersionParamSize,
deviceOpenCLVersion.data(),
nullptr));

std::cout << " OpenCL Version: " << deviceOpenCLVersion.data() << std::endl;
}

// Device Driver Version
{
size_t deviceDriverVersionParamSize = 0;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DRIVER_VERSION, 0, nullptr, &deviceDriverVersionParamSize));

std::vector<unsigned char> deviceDriverVersion(deviceDriverVersionParamSize, 0);
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DRIVER_VERSION, deviceDriverVersionParamSize,
deviceDriverVersion.data(), nullptr));

std::cout << " Driver Version: " << deviceDriverVersion.data() << std::endl;
}

// Device Max Compute Units
{
cl_uint deviceMaxComputeUnits = 0;
OCL_SAFE_CALL(clGetDeviceInfo(device, CL_DEVICE_MAX_COMPUTE_UNITS, sizeof(cl_uint),
&deviceMaxComputeUnits, nullptr));

std::cout << " Max Compute Units: " << deviceMaxComputeUnits << std::endl;
}
}
}

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