torch.cuda.get_stream_from_external# torch.cuda.get_stream_from_external(data_ptr, device=None)[source]# Return a Stream from an externally allocated CUDA stream. This function is used to wrap streams allocated in other libraries in order to facilitate data exchange and multi-library interactions. Note This function doesn’t manage the stream life-cycle, it is the user responsibility to keep the referenced stream alive while this returned stream is being used. Parameters data_ptr (int) – Integer representation of the cudaStream_t value that is allocated externally. device (torch.device or int, optional) – the device where the stream was originally allocated. If device is specified incorrectly, subsequent launches using this stream may fail. Return type Stream
