reasoning-gym/examples/veRL/README.md

env setup

conda create --name verl python=3.11 -y
conda activate verl

pip install flash-attn --no-build-isolation
pip install ray wandb
# pip3 install vllm==0.7.0
pip3 install vllm --pre --extra-index-url https://wheels.vllm.ai/nightly

Regarding vllm>0.7 see: docs

clone and install veRL

tested with verl HEAD 0dfcb7f99e299940e1792a386df13c7591df351a

git clone https://github.com/volcengine/verl.git
cd verl
pip install -e .

Optionally log in to huggingface hub and wandb with your keys:

huggingface-cli login
wandb login