internal static extern NvmlReturn NvmlDeviceGetGpuOperationMode(IntPtr device, out NvmlGpuOperationMode current, out NvmlGpuOperationMode pending);
public static extern NvmlReturn NvmlDeviceGetGpuOperationMode( NvmlDevice device, out NvmlGpuOperationMode current, out NvmlGpuOperationMode pending);