Error running cifar example on multi gpus

fastai
1

tried running cifar example using distributed data parallel using
python -m fastai.launch train_cifar.py

but am getting error
IndexError: index 0 is out of bounds for axis 0 with size 0

what am i doing wrong pls

2

i am using 4 gpus
using latest fastai ==1.0.57

3

rewrote using https://github.com/fastai/fastai/blob/master/docs/distributed.md, it works. Thanks

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