ms-swift/examples/train/grpo/plugin/run_external_reward_func.sh

# pip install math_verify # reward function
# pip install -U trl
# GPU memory: 80GiB
# register customized plugin in external_plugins file

CUDA_VISIBLE_DEVICES=0 \
swift rlhf \
    --rlhf_type grpo \
    --model Qwen/Qwen2.5-7B-Instruct \
    --external_plugins examples/train/grpo/plugin/plugin.py \
    --reward_funcs external_math_acc external_math_format \
    --train_type lora \
    --lora_rank 8 \
    --lora_alpha 32 \
    --target_modules all-linear \
    --torch_dtype bfloat16 \
    --dataset 'AI-MO/NuminaMath-TIR#1000' \
    --max_completion_length 1024 \
    --num_train_epochs 1 \
    --per_device_train_batch_size 4 \
    --per_device_eval_batch_size 4 \
    --learning_rate 1e-5 \
    --gradient_accumulation_steps 1 \
    --eval_steps 100 \
    --save_steps 100 \
    --save_total_limit 2 \
    --logging_steps 5 \
    --max_length 2048 \
    --output_dir output \
    --warmup_ratio 0.05 \
    --dataloader_num_workers 4 \
    --dataset_num_proc 4 \
    --num_generations 4 \
    --temperature 0.9 \
    --system 'examples/train/grpo/prompt.txt' \
    --log_completions true