# tensorplay.cuda.tunable.set_filename

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

```python
tensorplay.cuda.tunable.set_filename(filename: str, insert_device_ordinal: bool = False) → None
```

Set the file used to persist tuning results.

If insert_device_ordinal is True, the current device ordinal
is embedded in the name (a %d token is replaced in place, otherwise
the ordinal lands before the extension). This keeps one-process-per-device
runs from sharing a file. An empty filename turns file persistence off.