Debugging guide for TensorRT

[narendasan]

Description

A page that describes all the debugging tools and processes that we use to understand Torch-TensorRT compilation

Fixes # (issue)

Type of change

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

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

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

[narendasan]

@pytorchbot help

[pytorch-bot[bot]]

❌ 🤖 pytorchbot command failed:

@pytorchbot: error: argument command: invalid choice: 'help' (choose from 'merge', 'revert', 'rebase', 'label', 'drci', 'cherry-pick', 'close')

usage: @pytorchbot [-h] {merge,revert,rebase,label,drci,cherry-pick,close} ...

Try @pytorchbot --help for more info.

[narendasan]

@pytorchbot rebase

[narendasan]

@pytorchbot --help

[pytorch-bot[bot]]

PyTorchBot Help

usage: @pytorchbot [-h] {merge,revert,rebase,label,drci,cherry-pick,close} ...

In order to invoke the bot on your PR, include a line that starts with
@pytorchbot anywhere in a comment. That line will form the command; no
multi-line commands are allowed. Some commands may be used on issues as specified below.

Example:
    Some extra context, blah blah, wow this PR looks awesome

    @pytorchbot merge

optional arguments:
  -h, --help            Show this help message and exit.

command:
  {merge,revert,rebase,label,drci,cherry-pick,close}
    merge               Merge a PR
    revert              Revert a PR
    rebase              Rebase a PR
    label               Add label to a PR
    drci                Update Dr. CI
    cherry-pick         Cherry pick a PR onto a release branch
    close               Close a PR

Merge

usage: @pytorchbot merge [-f MESSAGE | -i] [-ic] [-r [{viable/strict,main}]]

Merge an accepted PR, subject to the rules in .github/merge_rules.json.
By default, this will wait for all required checks (lint, pull) to succeed before merging.

optional arguments:
  -f MESSAGE, --force MESSAGE
                        Merge without checking anything. This requires a reason for auditting purpose, for example:
                        @pytorchbot merge -f 'Minor update to fix lint. Expecting all PR tests to pass'
                        
                        Please use `-f` as last resort, prefer `--ignore-current` to continue the merge ignoring current failures. This will allow currently pending tests to finish and report signal before the merge.
  -i, --ignore-current  Merge while ignoring the currently failing jobs.  Behaves like -f if there are no pending jobs.
  -ic                   Old flag for --ignore-current. Deprecated in favor of -i.
  -r [{viable/strict,main}], --rebase [{viable/strict,main}]
                        Rebase the PR to re run checks before merging.  Accepts viable/strict or main as branch options and will default to viable/strict if not specified.

Revert

usage: @pytorchbot revert -m MESSAGE -c
                          {nosignal,ignoredsignal,landrace,weird,ghfirst}

Revert a merged PR. This requires that you are a Meta employee.

Example:
  @pytorchbot revert -m="This is breaking tests on trunk. hud.pytorch.org/" -c=nosignal

optional arguments:
  -m MESSAGE, --message MESSAGE
                        The reason you are reverting, will be put in the commit message. Must be longer than 3 words.
  -c {nosignal,ignoredsignal,landrace,weird,ghfirst}, --classification {nosignal,ignoredsignal,landrace,weird,ghfirst}
                        A machine-friendly classification of the revert reason.

Rebase

usage: @pytorchbot rebase [-s | -b BRANCH]

Rebase a PR. Rebasing defaults to the stable viable/strict branch of pytorch.
Repeat contributor may use this command to rebase their PR.

optional arguments:
  -s, --stable          [DEPRECATED] Rebase onto viable/strict
  -b BRANCH, --branch BRANCH
                        Branch you would like to rebase to

Label

usage: @pytorchbot label labels [labels ...]

Adds label to a PR or Issue [Can be used on Issues]

positional arguments:
  labels  Labels to add to given Pull Request or Issue [Can be used on Issues]

Dr CI

usage: @pytorchbot drci 

Update Dr. CI. Updates the Dr. CI comment on the PR in case it's gotten out of sync with actual CI results.

cherry-pick

usage: @pytorchbot cherry-pick --onto ONTO [--fixes FIXES] -c
                               {regression,critical,fixnewfeature,docs,release}

Cherry pick a pull request onto a release branch for inclusion in a release

optional arguments:
  --onto ONTO, --into ONTO
                        Branch you would like to cherry pick onto (Example: release/2.1)
  --fixes FIXES         Link to the issue that your PR fixes (Example: https://github.com/pytorch/pytorch/issues/110666)
  -c {regression,critical,fixnewfeature,docs,release}, --classification {regression,critical,fixnewfeature,docs,release}
                        A machine-friendly classification of the cherry-pick reason.

Close

usage: @pytorchbot close

Close a PR [Can be used on issues]

[narendasan]

@pytorchbot rebase -b main

[narendasan]

@pytorchbot merge

[pytorch-bot[bot]]

Mergebot is not configured for this repository. Please use the merge button provided by GitHub.