anirudh2290 opened a new pull request #11806: [MXNET-687] Fix spatial transformer op URL: https://github.com/apache/incubator-mxnet/pull/11806 ## Description ## Spatial transformer op produced incorrect results with `USE_CUDA=ON` `USE_CUDNN=OFF` till now. This was due to separate threads writing to the same global memory locations causing undefined behavior. Replaced all such writes with `atomicAdd`. I have also reenabled the disabled test: `test_stn`. Removed assertion_error param for `assert_raises_cudnn_disabled`. @tornadomeet @marcoabreu ## Checklist ## ### Essentials ### Please feel free to remove inapplicable items for your PR. - [x] The PR title starts with [MXNET-$JIRA_ID], where $JIRA_ID refers to the relevant [JIRA issue](https://issues.apache.org/jira/projects/MXNET/issues) created (except PRs with tiny changes) - [x] Changes are complete (i.e. I finished coding on this PR) - [x] All changes have test coverage: - [x] To the my best knowledge, examples are either not affected by this change, or have been fixed to be compatible with this change
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