The problem has been solved. This warning doesnn’t affect the process, and the real problems are two: One is the PAPI turtoial code bug, which has already been proposed and solved in another topic. The other is the type of data. In PAPI tutorial, data is astype float32, but when I do this in gpt model, it needs to be turned as int, and it works well. Next I gonna analyse the result, but that’s not the content this TOPIC covers.