# StreamContext

Source: https://www.tensorplay.cn/docs/generated/tensorplay.cuda.StreamContext.html

```python
class tensorplay.cuda.StreamContext(stream: Stream | None)
```

Context-manager that selects a given stream.

All CUDA kernels queued within its context will be enqueued on a selected
stream.

Parameters:

Stream ([Stream](/docs/generated/tensorplay.cuda.streams.Stream.html#tensorplay.cuda.streams.Stream)) – selected stream. This manager is a no-op if it’s
None.

> **Note**
>
> Streams are per-device.