evaluating has an extremely large value when quantize to 4bit.

[JiachuanDENG]

I followed the steps try to get 4bit version of llama7b by using command python -m llama.llama_quant decapoda-research/llama-7b-hf c4 --wbits 4 --groupsize 128 --save pyllama-7B4b.pt, the script works well, but at the evaluating stage, it got a very large number 251086.96875.

And when I testing with the quantized .pt file, model returns un-readable results.

Anyone has same problem?