代码如下

//设置硬件
hv_DLDeviceHandles.Dispose();               
HOperatorSet.QueryAvailableDlDevices((new HTuple("runtime")).TupleConcat("id"),(new HTuple("gpu")).TupleConcat(0), out hv_DLDeviceHandles);
HOperatorSet.SetDlModelParam(hv_DLModelHandle,"device",hv_DLDeviceHandles.TupleSelect(0));

  试过，可以获取到cpu，不能获取gpu，如下，获取的gpu为空，求助！