optimizer / README.md
junhyeok-motech
feat: update muon to receive paramgroups, not model (#4)
b0f46c7 unverified
---
tags:
- kernel
license: apache-2.0
---
# Optimizer
Optimizer is a python package that provides:
- PyTorch implementation of recent optimizer algorithms
- with support for parallelism techniques for efficient large-scale training.
## Currently implemented
- [Parallel Muon with FSDP2](./docs/muon/parallel_muon.pdf)
## Usage
```python
import torch
from torch.distributed.fsdp import FullyShardedDataParallel as FSDP
from kernels import get_kernel
optimizer = get_kernel("motif-technologies/optimizer")
get_default_muon_param_groups = optimizer.muon.get_default_muon_param_groups
model = None # your model here
fsdp_model = FSDP(model)
# muon, in nature, cannot use 1-d tensor
# we provide helper function to group such tensors
# you can use your own function, if necessary
params = get_default_muon_param_groups(model) # user can write own is_muon_func, if necessary
optim = optimizer.Muon(
params,
lr=0.01,
momentum=0.9,
weight_decay=1e-4,
)
```
## Pre-commit Hooks
This project uses [pre-commit](https://pre-commit.com/) to automatically check and format code before commits.
### Setup
1. Install pre-commit:
```bash
pip install pre-commit
```
2. Install the git hooks:
```bash
pre-commit install
```
Once installed, the configured hooks will run automatically on each commit.
### Included Hooks
The following tools are run via pre-commit:
- **[yapf](https://github.com/google/yapf)** – Python code formatter
- **[typos](https://github.com/crate-ci/typos)** – Spell checker for common typos
- **[isort](https://github.com/PyCQA/isort)** – Organizes and sorts Python imports
- **[clang-format](https://clang.llvm.org/docs/ClangFormat.html)** – Formats C++/CUDA code (`--style=file`)
- **[pymarkdown](https://github.com/jackdewinter/pymarkdown)** – Lints and auto-fixes Markdown files
- **[actionlint](https://github.com/rhysd/actionlint)** – Validates GitHub Actions workflows
### Usage
- Run all checks on the entire codebase:
```bash
pre-commit run --all-files
```
- Run a specific hook (example: isort):
```bash
pre-commit run isort --all-files
```
### Test
- There is a [simple unittest for Parallel Muon](./test/test_muon/README.md)