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feat: Rsqrt lowering pass #1394

Merged
merged 2 commits into from
Oct 12, 2022
Merged

feat: Rsqrt lowering pass #1394

merged 2 commits into from
Oct 12, 2022

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gs-olive
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@gs-olive gs-olive commented Oct 7, 2022

Description

This feature adds a lowering pass to convert rsqrt to its component functions.

Fixes #1333

Type of change

  • New feature (non-breaking change which adds functionality)

Checklist:

  • [ x ] My code follows the style guidelines of this project (You can use the linters)
  • [ x ] I have performed a self-review of my own code
  • [ x ] I have commented my code, particularly in hard-to-understand areas and hacks
  • [ x ] I have made corresponding changes to the documentation
  • [ x ] I have added tests to verify my fix or my feature
  • [ x ] New and existing unit tests pass locally with my changes
  • [ x ] I have added the relevant labels to my PR in so that relevant reviewers are notified

@github-actions github-actions bot added component: core Issues re: The core compiler component: lowering Issues re: The lowering / preprocessing passes component: tests Issues re: Tests labels Oct 7, 2022
gs-olive
gs-olive commented Oct 7, 2022
View reviewed changes
core/lowering/passes/unpack_rsqrt.cpp
Comment on lines +17 to +18
%intermediate: Tensor = aten::sqrt(%1)
%out: Tensor = aten::reciprocal(%intermediate)
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Want to verify there are no type-casting or other concerns with the order being $\frac{1}{\sqrt{x}}$ instead of $\sqrt{\frac{1}{x}}$

@narendasan
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@gs-olive can you rebase?

@github-actions github-actions bot added component: conversion Issues re: Conversion stage component: converters Issues re: Specific op converters documentation Improvements or additions to documentation labels Oct 11, 2022
@gs-olive gs-olive closed this Oct 11, 2022
@gs-olive gs-olive deleted the rsqrt_converter branch October 11, 2022 22:50
@gs-olive gs-olive restored the rsqrt_converter branch October 11, 2022 23:09
@gs-olive gs-olive reopened this Oct 11, 2022
@gs-olive
feat: Add lowering pass for rsqrt operator
21b5f51 
- Add unpack rsqrt lowering pass
- Add test cases for positive inputs, int and float
- Add references to new function in headers and BUILD files
@narendasan narendasan marked this pull request as ready for review October 12, 2022 16:29
@narendasan narendasan merged commit 85e5e99 into pytorch:master Oct 12, 2022
@gs-olive gs-olive deleted the rsqrt_converter branch October 12, 2022 21:20
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cla signed component: conversion Issues re: Conversion stage component: converters Issues re: Specific op converters component: core Issues re: The core compiler component: lowering Issues re: The lowering / preprocessing passes component: tests Issues re: Tests documentation Improvements or additions to documentation
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Successfully merging this pull request may close these issues.

[Converter] Request implementation aten::rsqrt(Tensor self) -> (Tensor) in Torch-TensorRT
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