PenutChen

I change `--init_checkpoint=albert_base/model.ckpt-best.index` to `--init_checkpoint=albert_base/model.ckpt-best` and it seems to work.

@beamind I think it's mean that you have to use `--vocab_file` instead of `--spm_model_file`. But @Danny-Google I encouter a problem when I do this change in `run_squad_v1.py`, when it goes...

@Danny-Google thanks! i will keep on researching.

thanks to this fix, it help me a lot!

@yaoyao3 check `pip list`, make sure you only have tensorflow-gpu in it. If you both have tensorflow & tensorflow-gpu, tf will choose cpu in default, at least in my case.

@paulthemagno i think tpu is different from gpu, leave that option be false.