Function parse_device

src/python/lfs/py_tensor.cpp:1412–1418

    namespace {
        Device parse_device(const std::string& device) {
            if (device == "cuda" || device == "gpu")
                return Device::CUDA;
            if (device == "cpu")
                return Device::CPU;
            throw std::runtime_error("Unknown device: " + device);
        }

        DataType parse_dtype(const std::string& dtype) {
            if (dtype == "float32" || dtype == "float")