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Lambda functions and DDP incompatibilities

See original GitHub issue

AttributeError: Can't pickle local object 'WeightRegularizerMixin.__init__.<locals>.<lambda>'

The use of lambda functions causes distributed training to fail due to the use of pickling in fork. I searched for lambdas in the repo and there are only around 10 instances, should be an easy fix?

Issue Analytics

State:
Created 4 years ago
Reactions:1
Comments:11 (5 by maintainers)

Top GitHub Comments

3reactions

KevinMusgravecommented, Feb 7, 2020

I removed all nested function definitions, so pickling loss functions works now. Hopefully that fixes it! fingers crossed

2reactions

s-rogcommented, Feb 11, 2020

Awesome, I’ll test it out soon!

Edit: seems to be working! (after converting all args to keyword args)

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