Function getDeviceInfo

src/backend/opencl/platform.cpp:144–192

}

string getDeviceInfo() noexcept {
    ostringstream info;
    info << "ArrayFire v" << AF_VERSION << " (OpenCL, " << get_system()
         << ", build " << AF_REVISION << ")\n";

    vector<cl::Device*> devices;
    try {
        DeviceManager& devMngr = DeviceManager::getInstance();

        common::lock_guard_t lock(devMngr.deviceMutex);
        unsigned nDevices = 0;
        for (auto& device : devMngr.mDevices) {
            const Platform platform(device->getInfo<CL_DEVICE_PLATFORM>());

            string dstr = device->getInfo<CL_DEVICE_NAME>();
            bool show_braces =
                (static_cast<unsigned>(getActiveDeviceId()) == nDevices);

            string id = (show_braces ? string("[") : "-") +
                        to_string(nDevices) + (show_braces ? string("]") : "-");

            size_t msize = device->getInfo<CL_DEVICE_GLOBAL_MEM_SIZE>();
            info << id << " " << getPlatformName(*device) << ": " << ltrim(dstr)
                 << ", " << msize / 1048576 << " MB";
#ifndef NDEBUG
            info << " -- ";
            string devVersion = device->getInfo<CL_DEVICE_VERSION>();
            string driVersion = device->getInfo<CL_DRIVER_VERSION>();
            info << devVersion;
            info << " -- Device driver " << driVersion;
            info
                << " -- FP64 Support: "
                << (device->getInfo<CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE>() >
                            0
                        ? "True"
                        : "False");
#endif
            info << endl;

            nDevices++;
        }
    } catch (const AfError& err) {
        UNUSED(err);
        info << "No platforms found.\n";
        // Don't throw an exception here. Info should pass even if the system
        // doesn't have the correct drivers installed.
    }
    return info.str();
}

string getPlatformName(const Device& device) {
    const Platform platform(device.getInfo<CL_DEVICE_PLATFORM>());