Fix finetuning PP
State: closed | Pull request: yes
Labels: name: Run CICD

# What does this PR do ?

Pipeline parallel was broken in all finetuning tasks unless `pad_max_length=True`. Unfortunately the CI script also had a bug and the PP bug slipped through. This PR fixes both. 

**Collection**: [Note which collection this PR will affect]

# Changelog 
- Add specific line by line info of high level changes in this PR.

# Usage
* You can potentially add a usage example below

```python
# Add a code snippet demonstrating how to use this 
```

# GitHub Actions CI

The Jenkins CI system has been replaced by GitHub Actions self-hosted runners.

The GitHub Actions CI will run automatically when the "Run CICD" label is added to the PR.
To re-run CI remove and add the label again.
To run CI on an untrusted fork, a NeMo user with write access must first click "Approve and run".

# Before your PR is "Ready for review"
**Pre checks**:
- [ ] Make sure you read and followed [Contributor guidelines](https://github.com/NVIDIA/NeMo/blob/main/CONTRIBUTING.md)
- [ ] Did you write any new necessary tests?
- [ ] Did you add or update any necessary documentation?
- [ ] Does the PR affect components that are optional to install? (Ex: Numba, Pynini, Apex etc)
  - [ ] Reviewer: Does the PR have correct import guards for all optional libraries?
  
**PR Type**:
- [ ] New Feature
- [ ] Bugfix
- [ ] Documentation

If you haven't finished some of the above items you can still open "Draft" PR.


## Who can review?

Anyone in the community is free to review the PR once the checks have passed. 
[Contributor guidelines](https://github.com/NVIDIA/NeMo/blob/main/CONTRIBUTING.md) contains specific people who can review PRs to various areas.

# Additional Information
* Related to # (issue)


<!-- pylint-output-strict-mode-false -->

beep boop 🤖: 🙏 The following files have warnings. In case you are familiar with these, please try helping us to improve the code base.

---

Your code was analyzed with PyLint. The following annotations have been identified:

```
************* Module nemo.lightning.megatron_parallel
nemo/lightning/megatron_parallel.py:238:0: C0301: Line too long (127/119) (line-too-long)
nemo/lightning/megatron_parallel.py:239:0: C0301: Line too long (140/119) (line-too-long)
nemo/lightning/megatron_parallel.py:240:0: C0301: Line too long (130/119) (line-too-long)
nemo/lightning/megatron_parallel.py:546:0: C0301: Line too long (129/119) (line-too-long)
nemo/lightning/megatron_parallel.py:553:0: C0301: Line too long (135/119) (line-too-long)
nemo/lightning/megatron_parallel.py:813:0: C0301: Line too long (137/119) (line-too-long)
nemo/lightning/megatron_parallel.py:1043:0: C0301: Line too long (136/119) (line-too-long)
nemo/lightning/megatron_parallel.py:1616:0: C0301: Line too long (128/119) (line-too-long)
nemo/lightning/megatron_parallel.py:1655:0: C0301: Line too long (146/119) (line-too-long)
nemo/lightning/megatron_parallel.py:64:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:65:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:67:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:102:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:106:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:306:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:330:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:356:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:382:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:518:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:561:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:565:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:621:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:657:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:664:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:698:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:706:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:722:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:749:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:761:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:783:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1309:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1484:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1490:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1496:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1500:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1505:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1510:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1538:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1584:8: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1606:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1679:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1718:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1732:0: C0116: Missing function or method docstring (missing-function-docstring)

-----------------------------------
Your code has been rated at 9.26/10
```

---

Thank you for improving NeMo's documentation!

<!-- pylint-output-strict-mode-false -->

beep boop 🤖: 🙏 The following files have warnings. In case you are familiar with these, please try helping us to improve the code base.

---

Your code was analyzed with PyLint. The following annotations have been identified:

```
************* Module nemo.lightning.megatron_parallel
nemo/lightning/megatron_parallel.py:238:0: C0301: Line too long (127/119) (line-too-long)
nemo/lightning/megatron_parallel.py:239:0: C0301: Line too long (140/119) (line-too-long)
nemo/lightning/megatron_parallel.py:240:0: C0301: Line too long (130/119) (line-too-long)
nemo/lightning/megatron_parallel.py:546:0: C0301: Line too long (129/119) (line-too-long)
nemo/lightning/megatron_parallel.py:553:0: C0301: Line too long (135/119) (line-too-long)
nemo/lightning/megatron_parallel.py:813:0: C0301: Line too long (137/119) (line-too-long)
nemo/lightning/megatron_parallel.py:1043:0: C0301: Line too long (136/119) (line-too-long)
nemo/lightning/megatron_parallel.py:1616:0: C0301: Line too long (128/119) (line-too-long)
nemo/lightning/megatron_parallel.py:1655:0: C0301: Line too long (146/119) (line-too-long)
nemo/lightning/megatron_parallel.py:64:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:65:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:67:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:102:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:106:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:306:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:330:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:356:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:382:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:518:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:561:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:565:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:621:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:657:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:664:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:698:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:706:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:722:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:749:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:761:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:783:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1309:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1484:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1490:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1496:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1500:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1505:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1510:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1538:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1584:8: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1606:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1679:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1718:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1732:0: C0116: Missing function or method docstring (missing-function-docstring)

-----------------------------------
Your code has been rated at 9.26/10
```

---

Thank you for improving NeMo's documentation!

[🤖]: Hi @cuichenx 👋,

We wanted to let you know that a [CICD pipeline](https://github.com/NVIDIA/NeMo/actions/runs/12188383529) for this PR just finished successfully

So it might be time to merge this PR or get some approvals

I'm just a bot so I'll leave it you what to do next.

//cc @pablo-garay @ko3n1g