[GitHub] Vikas89 opened a new pull request #13637: Fix for import mxnet taking long time if multiple process launched (#…

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Vikas89 opened a new pull request #13637: Fix for import mxnet taking long time if multiple process launched (#…
URL: https://github.com/apache/incubator-mxnet/pull/13637
 
 
   …13602)
   
   * https://github.com/apache/incubator-mxnet/issues/12255
   doing import mxnet in multiple processes take very long time.
   Details : #12255
   One of the reason we have OMP tuning code which iterates to find OMP
   tune overhead. We are reducing this iteration count to reduce the
   overehead of tuning code.
   Also, We added an environment variable where users can set the number
   of cores that should be used to determine tuning.
   
   * cpplint fix
   
   * Adding new environment variable: MXNET_USE_NUM_CORES_OPERATOR_TUNING to doc
   
   * fixing formatting in doc
   
   ## Description ##
   (Brief description on what this PR is about)
   
   ## Checklist ##
   ### Essentials ###
   Please feel free to remove inapplicable items for your PR.
   - [ ] The PR title starts with [MXNET-$JIRA_ID], where $JIRA_ID refers to the relevant [JIRA issue](https://issues.apache.org/jira/projects/MXNET/issues) created (except PRs with tiny changes)
   - [ ] Changes are complete (i.e. I finished coding on this PR)
   - [ ] All changes have test coverage:
   - Unit tests are added for small changes to verify correctness (e.g. adding a new operator)
   - Nightly tests are added for complicated/long-running ones (e.g. changing distributed kvstore)
   - Build tests will be added for build configuration changes (e.g. adding a new build option with NCCL)
   - [ ] Code is well-documented: 
   - For user-facing API changes, API doc string has been updated. 
   - For new C++ functions in header files, their functionalities and arguments are documented. 
   - For new examples, README.md is added to explain the what the example does, the source of the dataset, expected performance on test set and reference to the original paper if applicable
   - Check the API doc at http://mxnet-ci-doc.s3-accelerate.dualstack.amazonaws.com/PR-$PR_ID/$BUILD_ID/index.html
   - [ ] To the my best knowledge, examples are either not affected by this change, or have been fixed to be compatible with this change
   
   ### Changes ###
   - [ ] Feature1, tests, (and when applicable, API doc)
   - [ ] Feature2, tests, (and when applicable, API doc)
   
   ## Comments ##
   - If this change is a backward incompatible change, why must this change be made.
   - Interesting edge cases to note here
   

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