set -x

gsm8k_train_path=$HOME/data/gsm8k/train.parquet
gsm8k_test_path=$HOME/data/gsm8k/test.parquet
math_train_path=$HOME/data/math/train.parquet
math_test_path=$HOME/data/math/test.parquet

train_files="['$gsm8k_train_path', '$math_train_path']"
test_files="['$gsm8k_test_path', '$math_test_path']"

FUSED_KERNEL_BACKEND=triton # or 'torch' for torch backend

python3 -m verl.trainer.main_ppo \
    algorithm.adv_estimator=gae \
    data.train_files="$train_files" \
    data.val_files="$test_files" \
    data.train_batch_size=4096 \
    data.max_prompt_length=4096 \
    data.max_response_length=4096 \
    data.filter_overlong_prompts=True \
    data.truncation='error' \
    data.return_raw_chat=True \
    actor_rollout_ref.model.path=Qwen/Qwen2-7B-Instruct \
    actor_rollout_ref.actor.optim.lr=1e-6 \
    actor_rollout_ref.model.use_remove_padding=True \
    actor_rollout_ref.model.use_fused_kernels=True \
    actor_rollout_ref.model.fused_kernel_options.impl_backend=$FUSED_KERNEL_BACKEND \
    actor_rollout_ref.model.enable_gradient_checkpointing=True \
    actor_rollout_ref.actor.ppo_mini_batch_size=512 \
    actor_rollout_ref.actor.use_dynamic_bsz=True \
    actor_rollout_ref.actor.ppo_max_token_len_per_gpu=24000 \
    actor_rollout_ref.actor.fsdp_config.param_offload=False \
    actor_rollout_ref.actor.fsdp_config.optimizer_offload=False \
    actor_rollout_ref.actor.use_kl_loss=False \
    actor_rollout_ref.rollout.tensor_model_parallel_size=2 \
    actor_rollout_ref.rollout.name=vllm \
    actor_rollout_ref.rollout.gpu_memory_utilization=0.5 \
    actor_rollout_ref.rollout.log_prob_max_token_len_per_gpu=24000 \
    critic.optim.lr=1e-5 \
    critic.model.use_remove_padding=True \
    critic.model.path=Qwen/Qwen2-7B-Instruct \
    critic.model.enable_gradient_checkpointing=True \
    critic.use_dynamic_bsz=True \
    critic.ppo_max_token_len_per_gpu=98304 \
    critic.model.fsdp_config.param_offload=False \
    critic.model.fsdp_config.optimizer_offload=False \
    reward_model.enable=True \
    reward_model.model.path=sfairXC/FsfairX-LLaMA3-RM-v0.1\
    reward_model.model.use_remove_padding=True \
    reward_model.model.fsdp_config.param_offload=True \
    reward_model.micro_batch_size_per_gpu=32 \
    reward_model.use_dynamic_bsz=True \
    reward_model.forward_max_token_len_per_gpu=98304 \
    algorithm.use_kl_in_reward=False \
    trainer.critic_warmup=0 \
    trainer.logger='["console","wandb"]' \
    trainer.project_name='verl_example_gsm8k' \
    trainer.experiment_name='qwen2-7b_hybrid_rm_bsz8k_p4k_r4k_seq_packing_fused_kernel' \
    trainer.n_gpus_per_node=8 \
    trainer.val_before_train=False \
    trainer.nnodes=1 \
    trainer.save_freq=20 \
    trainer.test_freq=5 \
    trainer.total_epochs=15 $@
