3 ms·
This is an exceptionally useful article. A few highlights: * QLoRA works really well compared to LoRA if you need to save memory (at the cost of time) * For s
by nl 3y ago
This is an exceptionally useful article. A few highlights:
* QLoRA works really well compared to LoRA if you need to save memory (at the cost of time)
* For small LoRAs, Adam has almost no memory usage penalty compared to SGD
* Multiple training epochs lower performance (!). To quote: "This performance decline is likely due to increased overfitting, which warrants additional investigation." (Note that this is LoRA overfitting, and unclear which layers it was enabled for for this experiment).
* The best results for alpha and r parameters in LoRA seems to be alpha = 2r.
* Better datasets are much better. 1k LIMA gives better results than 50k Alpaca
- 3abiton 3y agoI wish there is a benchmark comparing the impact of all the different tweaks on the performance of the model.