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Posted to commits@mxnet.apache.org by GitBox <gi...@apache.org> on 2020/02/24 08:50:38 UTC
[GitHub] [incubator-mxnet] ElaineBao commented on issue #17669: flaky
test_bf16_operator.test_bf16_bn
ElaineBao commented on issue #17669: flaky test_bf16_operator.test_bf16_bn
URL: https://github.com/apache/incubator-mxnet/issues/17669#issuecomment-590219478
Yes, this happens when the variance of bn meets some specific value which can not be computed as fp32 by bf16, as you can see, these error occurs in the same channel (channel = 10 in above case), because they share the same variance. This case can be fixed either by enlarging the error tolerance or using fixed seed.
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