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Fix unary operator ceil/floor/trunc when data type is integer #14251

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merged 3 commits into from
Sep 7, 2019
Merged

Fix unary operator ceil/floor/trunc when data type is integer #14251

merged 3 commits into from
Sep 7, 2019

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apeforest
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@apeforest apeforest commented Feb 25, 2019 •
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Description

Many operators implicitly cast data to float and return inaccurate results. This PR fixes #13220.

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Essentials

Please feel free to remove inapplicable items for your PR.

  • [] The PR title starts with [MXNET-$JIRA_ID], where $JIRA_ID refers to the relevant JIRA issue created (except PRs with tiny changes)
  • Changes are complete (i.e. I finished coding on this PR)
  • All changes have test coverage:
  • Unit tests are added for small changes to verify correctness (e.g. adding a new operator)
  • Nightly tests are added for complicated/long-running ones (e.g. changing distributed kvstore)
  • Build tests will be added for build configuration changes (e.g. adding a new build option with NCCL)
  • Code is well-documented:
  • For user-facing API changes, API doc string has been updated.
  • For new C++ functions in header files, their functionalities and arguments are documented.
  • For new examples, README.md is added to explain the what the example does, the source of the dataset, expected performance on test set and reference to the original paper if applicable
  • Check the API doc at http://mxnet-ci-doc.s3-accelerate.dualstack.amazonaws.com/PR-$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

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@anirudhacharya
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@mxnet-label-bot add [pr-work-in-progress]

@marcoabreu marcoabreu added the pr-work-in-progress PR is still work in progress label Feb 27, 2019
szha
szha reviewed Mar 6, 2019
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Thanks for the fix. It would be great to test for it.

@pinaraws
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@apeforest Could you please add a test as suggested by @szha ?

@piyushghai
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@apeforest Gentle ping...

@karan6181
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@apeforest Thanks for your contribution! Did you get a chance to add a test ?

@apeforest apeforest closed this Aug 23, 2019
@apeforest apeforest deleted the bugfix/issue13220 branch August 23, 2019 17:09
@apeforest apeforest restored the bugfix/issue13220 branch September 5, 2019 18:35
@apeforest apeforest reopened this Sep 5, 2019
@apeforest apeforest changed the title [WIP] Fix unary operator ceil/floor/trunc when data type is integer Fix unary operator ceil/floor/trunc when data type is integer Sep 5, 2019
@apeforest apeforest added pr-awaiting-review PR is waiting for code review and removed pr-work-in-progress PR is still work in progress labels Sep 5, 2019
ChaiBapchya
ChaiBapchya approved these changes Sep 6, 2019
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LGTM!

@eric-haibin-lin eric-haibin-lin merged commit 4f8bc3a into apache:master Sep 7, 2019
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thx for the fix

gyshi pushed a commit to gyshi/incubator-mxnet that referenced this pull request Sep 7, 2019
@apeforest @gyshi
Fix unary operator ceil/floor/trunc when data type is integer (apache…
17fd508 
…#14251)

* fix integer precision loss due to casting to float

* add test

* update comment
gyshi pushed a commit to gyshi/incubator-mxnet that referenced this pull request Sep 7, 2019
@apeforest @gyshi
Fix unary operator ceil/floor/trunc when data type is integer (apache…
585c0ba 
…#14251)

* fix integer precision loss due to casting to float

* add test

* update comment
larroy pushed a commit to larroy/mxnet that referenced this pull request Sep 28, 2019
@apeforest @larroy
Fix unary operator ceil/floor/trunc when data type is integer (apache…
110597f 
…#14251)

* fix integer precision loss due to casting to float

* add test

* update comment
@apeforest apeforest deleted the bugfix/issue13220 branch January 7, 2020 22:48
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@szha szha szha left review comments

@larroy larroy larroy approved these changes

@eric-haibin-lin eric-haibin-lin eric-haibin-lin approved these changes

@ChaiBapchya ChaiBapchya ChaiBapchya approved these changes

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Many operators don't work for integer type
10 participants
@apeforest @anirudhacharya @pinaraws @piyushghai @karan6181 @eric-haibin-lin @larroy @szha @ChaiBapchya @marcoabreu