fastrl

(โ˜… 176)

[ASPLOS'26] Taming the Long-Tail: Efficient Reasoning RL Training with Adaptive Drafter

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  • .gitignore
  • .pre-commit-config.yaml
  • LICENSE
  • README.md
  • requirements.txt
  • setup.py

# Installation Guide

1. Get the code
git clone https://github.com/mit-han-lab/fastrl

Downloads the entire project code from GitHub to your computer.

cd fastrl

Moves into the project folder you just downloaded.

2. Official Install Script

Easy Recommended
Prerequisites
  • Python 3 Python is required to use pip.
pip install https://github.com/Dao-AILab/flash-attention/releases/download/v2.8.3/flash_attn-2.8.3+cu12torch2.8cxx11abiTRUE-cp312-cp312-linux_x86_64.whl

Installs the package published on PyPI directly โ€” no need to clone the source.

โœ… After installing, open a new terminal and run the program's version command (e.g. --version) to confirm it worked.

Pulled directly from this repo's README.

3. Docker

Easy
Prerequisites
  • Git Needed to download the project code from GitHub.
  • Docker Desktop Needed to build and run containers. Install it and keep it running in the background.
โš ๏ธ This is a large repository, so this method may point to an internal sub-package rather than the actual core product. Check the full README as well.
docker compose -f third-party/sglang/docker/compose.yaml up -d --build

Runs the command against the services defined in the compose file.

โœ… Run docker compose ps to check the containers are Up. If the README mentions a port, open http://localhost:PORT in your browser.

4. CMake

Medium
Prerequisites
  • Git Needed to download the project code from GitHub.
  • CMake The tool used to generate build configuration.
  • C/C++ ์ปดํŒŒ์ผ๋Ÿฌ Windows needs Visual Studio (Community edition, free), macOS needs Xcode Command Line Tools, Linux needs the gcc/g++ package.
โš ๏ธ This is a large repository, so this method may point to an internal sub-package rather than the actual core product. Check the full README as well.
cd third-party/sglang/sgl-kernel

This project's files live in a subfolder, so move into it first.

mkdir build && cd build

Creates a folder to hold the build output and moves into it.

cmake ..

Analyzes the source code and generates build configuration files (must be run inside the build folder).

make

Compiles the code based on the generated build configuration to produce an executable.

โœ… Check that an executable was created inside the build folder, then run it directly (e.g. ./build/app_name).

5. Python

Easy
Prerequisites
  • Git Needed to download the project code from GitHub.
  • Python 3 On Windows, be sure to check 'Add Python to PATH' during installation.
pip install -e "python[all]"

Installs the Python libraries listed in requirements.txt (or similar).

pip install https://github.com/Dao-AILab/flash-attention/releases/download/v2.8.3/flash_attn-2.8.3+cu12torch2.8cxx11abiTRUE-cp312-cp312-linux_x86_64.whl

Installs the package published on PyPI directly โ€” no need to clone the source.

pip install -e .

Installs the Python libraries listed in requirements.txt (or similar).

โœ… If it runs without errors and prints output in the terminal, it worked.

Pulled directly from this repo's README.

6. Rust

Medium
Prerequisites
  • Git Needed to download the project code from GitHub.
  • Rust (rustup) Installing via rustup also installs cargo.
โš ๏ธ This is a large repository, so this method may point to an internal sub-package rather than the actual core product. Check the full README as well.
cd third-party/sglang/sgl-router

This project's files live in a subfolder, so move into it first.

cargo build --release

Compiles the Rust project.

cargo run

Builds and then immediately runs the program.

โœ… If cargo build finishes without errors, it worked. The executable is created under target/.

7. Make

Medium
Prerequisites
  • Git Needed to download the project code from GitHub.
  • Make Usually pre-installed on Linux/macOS. On Windows, install separately (e.g. via MSYS2 or WSL).
โš ๏ธ This is a large repository, so this method may point to an internal sub-package rather than the actual core product. Check the full README as well.
cd third-party/sglang

This project's files live in a subfolder, so move into it first.

make

Compiles the code based on the generated build configuration to produce an executable.

โœ… If it finishes without errors, it worked. Try running the generated executable directly.

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