Comments (6)
Hi, did you build colossalai from source?
from colossalai.
yes, using nproc_per_node 1
is ok. but nproc_per_node 2
will meet this error.
from colossalai.
Ok, let me try to reproduce this error. May I know which GPU you are using and how many GPUs are available on your machine?
from colossalai.
Tesla-V100 and 2GPUs are avaliable in my machine.
from colossalai.
Got, let me try to reproduce this issue. I will get back to you soon!
from colossalai.
Hi, sorry for my late reply. We only got A100 machines so it took a while for me to look for a V100 machine. This bug can be reproduced on torch 1.8 but not torch 1.10. This bug is due to an optional argument in pytorch DistributedDataParallel. This bug will be fixed in #194 .
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