Skip to content

fix: Inferred dimensions at build time in reshape #3746

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: main
Choose a base branch
from

Conversation

keehyuna
Copy link
Collaborator

@keehyuna keehyuna commented Aug 5, 2025

Description

Added special case handling in the reshape operation to detect and handle cases involving dynamic shape and inferred dim.
This new logic in reshape:

  1. Detects when there's exactly one dynamic dimension and one inferred dimension
  2. Calculates the inferred dimension size based on total element count
  3. Replaces the inferred dimension (-1) with the calculated value

Fixes #3745

Type of change

Please delete options that are not relevant and/or add your own.

  • Bug fix (non-breaking change which fixes an issue)

Checklist:

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

@meta-cla meta-cla bot added the cla signed label Aug 5, 2025
@github-actions github-actions bot added component: conversion Issues re: Conversion stage component: converters Issues re: Specific op converters component: api [Python] Issues re: Python API component: dynamo Issues relating to the `torch.compile` or `torch._dynamo.export` paths labels Aug 5, 2025
@keehyuna keehyuna self-assigned this Aug 5, 2025
Copy link
Collaborator

@lanluo-nvidia lanluo-nvidia left a comment

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

LGTM

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
cla signed component: api [Python] Issues re: Python API component: conversion Issues re: Conversion stage component: converters Issues re: Specific op converters component: dynamo Issues relating to the `torch.compile` or `torch._dynamo.export` paths
Projects
None yet
Development

Successfully merging this pull request may close these issues.

🐛 [Bug] Compilation failure with NVFP4 Quantization with dynamic shapes
2 participants