py2

Merge pull request #16 from vacancy/new-numeric-test

Merge pull request #15 from acgtyrant/new-numeric-test

test_numeric_batchnorm_v2.py: add running_mean and running_var

unittest.py: use the default atol and rtol in allclose

batchnorm_reimpl.py: fix the wrong view of the output

batchnorm_reimpl.py: make the computation of inv_std same as the offical bn

[new-numeric-test] add new numeric test from #14

Merge pull request #9 from aywi/fix_pickle

Fix pickle error

Merge pull request #8 from d-li14/master

Update test_numeric_batchnorm.py

[master] add contributors

[master] CRITICAL: accelerate the reduce operation for 8GPU communication

Merge branch 'master' of https://github.com/vacancy/Synchronized-BatchNorm-PyTorch