add random print sample when eval

main.py

@@ -101,7 +101,7 @@ if __name__ == "__main__":
 
     training_args = TrainingArguments(
         output_dir=checkpoint_path,
-        # fp16=True,
+        fp16=True,
         group_by_length=True,
         per_device_train_batch_size=4,
         per_device_eval_batch_size=4,