fix #4579

src/llamafactory/train/sft/trainer.py

@@ -53,6 +53,9 @@ class CustomSeq2SeqTrainer(Seq2SeqTrainer):
         self.processor = processor
 
         if finetuning_args.pissa_convert:
+            if self.is_deepspeed_enabled:
+                self.accelerator.deepspeed_config = self.accelerator.state.deepspeed_plugin.deepspeed_config
+                self.deepspeed = self._wrap_model(self.model_wrapped)
             self.save_model(os.path.join(self.args.output_dir, "pissa_init"))
 
         if finetuning_args.use_badam: