Remove unwanted params in DDP init in Megatron Parallel
State: closed | Pull request: yes
Labels: name: Run CICD

name: skip-docs

# What does this PR do ?

Remove args no longer present in MCore DDP init - https://github.com/NVIDIA/Megatron-LM/blob/main/megatron/core/distributed/distributed_data_parallel.py#L37

**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 
```

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# Additional Information
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<!-- 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:829:0: C0301: Line too long (137/119) (line-too-long)
nemo/lightning/megatron_parallel.py:1059:0: C0301: Line too long (136/119) (line-too-long)
nemo/lightning/megatron_parallel.py:1632:0: C0301: Line too long (128/119) (line-too-long)
nemo/lightning/megatron_parallel.py:1671:0: 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:619:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:654:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:660:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:666:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:673:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:680:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:714:4: 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:738:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:765:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:777:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:799:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1325:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1500:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1506:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1512:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1516:4: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1521:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1526:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1554:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1600:8: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1622:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1695:0: C0115: Missing class docstring (missing-class-docstring)
nemo/lightning/megatron_parallel.py:1734:0: C0116: Missing function or method docstring (missing-function-docstring)
nemo/lightning/megatron_parallel.py:1748:0: C0116: Missing function or method docstring (missing-function-docstring)

-----------------------------------
Your code has been rated at 9.23/10
```

---

Thank you for improving NeMo's documentation!

[🤖]: Hi @hemildesai 👋,

We wanted to let you know that a [CICD pipeline](https://github.com/NVIDIA/NeMo/actions/runs/12243379988) 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