#!/bin/bash

project_name='DAPO'
exp_name='DAPO-Qwen3-30B-megatron'

adv_estimator=grpo

use_kl_in_reward=False
kl_coef=0.0
use_kl_loss=False
kl_loss_coef=0.0

clip_ratio_low=0.2
clip_ratio_high=0.28

max_prompt_length=$((1024 * 2))
max_response_length=$((1024 * 20))
enable_overlong_buffer=True
overlong_buffer_len=$((1024 * 4))
overlong_penalty_factor=1.0

loss_agg_mode="token-mean"

enable_filter_groups=True
filter_groups_metric=acc
max_num_gen_batches=10
train_prompt_bsz=16
gen_prompt_bsz=$((train_prompt_bsz * 2))
n_resp_per_prompt=16
train_prompt_mini_bsz=2

# Ray
RAY_ADDRESS=${RAY_ADDRESS:-"http://localhost:8265"}
WORKING_DIR=${WORKING_DIR:-"${PWD}"}
RUNTIME_ENV=${RUNTIME_ENV:-"${WORKING_DIR}/verl/trainer/runtime_env.yaml"}
NNODES=${NNODES:-1}
# Paths
RAY_DATA_HOME=${RAY_DATA_HOME:-"${HOME}/verl"}
MODEL_PATH=${MODEL_PATH:-"${RAY_DATA_HOME}/models/Qwen3-30B-A3B"}
# MCORE_MODEL_PATH points to the converted checkpoint.
# To avoid loading these weights, set actor_rollout_ref.actor.megatron.use_dist_checkpointing=False.
MCORE_MODEL_PATH=${MCORE_MODEL_PATH:-"${RAY_DATA_HOME}/models/Qwen3-30B-A3B-dist_ckpt"}
CKPTS_DIR=${CKPTS_DIR:-"${RAY_DATA_HOME}/ckpts/${project_name}/${exp_name}"}
TRAIN_FILE=${TRAIN_FILE:-"${RAY_DATA_HOME}/data/dapo-math-17k.parquet"}
TEST_FILE=${TEST_FILE:-"${RAY_DATA_HOME}/data/aime-2024.parquet"}

# Algorithm
temperature=1.0
top_p=1.0
top_k=-1 # 0 for HF rollout, -1 for vLLM rollout

# Performance Related Parameter
sp_size=8
use_dynamic_bsz=True
actor_ppo_max_token_len=$(((max_prompt_length + max_response_length)))
infer_ppo_max_token_len=$(((max_prompt_length + max_response_length)))
offload=True

max_num_batched_tokens=$((max_prompt_length + max_response_length))

# Megatron backen
train_tp=4
train_ep=2
train_pp=2
train_cp=1

ray job submit --no-wait --runtime-env="${RUNTIME_ENV}" \
    --address "${RAY_ADDRESS}" \
    -- python3 -m recipe.dapo.main_dapo \
    --config-name="dapo_megatron_trainer" \
    data.filter_overlong_prompts=False \
    data.train_files="${TRAIN_FILE}" \
    data.val_files="${TEST_FILE}" \
    data.shuffle=False \
    data.prompt_key=prompt \
    data.truncation='left' \
    data.max_prompt_length=${max_prompt_length} \
    data.max_response_length=${max_response_length} \
    data.gen_batch_size=${gen_prompt_bsz} \
    data.train_batch_size=${train_prompt_bsz} \
    algorithm.adv_estimator=${adv_estimator} \
    algorithm.use_kl_in_reward=${use_kl_in_reward} \
    algorithm.kl_ctrl.kl_coef=${kl_coef} \
    actor_rollout_ref.rollout.n=${n_resp_per_prompt} \
    actor_rollout_ref.rollout.name=vllm \
    actor_rollout_ref.actor.use_kl_loss=${use_kl_loss} \
    actor_rollout_ref.actor.kl_loss_coef=${kl_loss_coef} \
    actor_rollout_ref.actor.clip_ratio_low=${clip_ratio_low} \
    actor_rollout_ref.actor.clip_ratio_high=${clip_ratio_high} \
    actor_rollout_ref.actor.clip_ratio_c=10.0 \
    actor_rollout_ref.actor.ppo_epochs=1 \
    algorithm.filter_groups.enable=${enable_filter_groups} \
    algorithm.filter_groups.max_num_gen_batches=${max_num_gen_batches} \
    algorithm.filter_groups.metric=${filter_groups_metric} \
    actor_rollout_ref.model.use_remove_padding=True \
    actor_rollout_ref.actor.use_dynamic_bsz=${use_dynamic_bsz} \
    actor_rollout_ref.actor.ppo_micro_batch_size_per_gpu=1 \
    actor_rollout_ref.ref.log_prob_micro_batch_size_per_gpu=1 \
    actor_rollout_ref.rollout.log_prob_micro_batch_size_per_gpu=1 \
    actor_rollout_ref.ref.log_prob_use_dynamic_bsz=${use_dynamic_bsz} \
    actor_rollout_ref.rollout.log_prob_use_dynamic_bsz=${use_dynamic_bsz} \
    actor_rollout_ref.actor.ppo_max_token_len_per_gpu=${actor_ppo_max_token_len} \
    actor_rollout_ref.ref.log_prob_max_token_len_per_gpu=${infer_ppo_max_token_len} \
    actor_rollout_ref.rollout.log_prob_max_token_len_per_gpu=${infer_ppo_max_token_len} \
    actor_rollout_ref.model.path="${MODEL_PATH}" \
    +actor_rollout_ref.model.override_config.attention_dropout=0. \
    +actor_rollout_ref.model.override_config.embd_pdrop=0. \
    +actor_rollout_ref.model.override_config.resid_pdrop=0. \
    actor_rollout_ref.actor.optim.lr=1e-6 \
    actor_rollout_ref.actor.optim.lr_warmup_steps=10 \
    actor_rollout_ref.actor.ppo_mini_batch_size=${train_prompt_mini_bsz} \
    actor_rollout_ref.actor.megatron.param_offload=${offload} \
    actor_rollout_ref.actor.megatron.optimizer_offload=${offload} \
    actor_rollout_ref.actor.megatron.grad_offload=${offload} \
    actor_rollout_ref.actor.megatron.pipeline_model_parallel_size=${train_pp} \
    actor_rollout_ref.actor.megatron.tensor_model_parallel_size=${train_tp} \
    actor_rollout_ref.actor.megatron.expert_model_parallel_size=${train_ep} \
    actor_rollout_ref.actor.megatron.context_parallel_size=${train_cp} \
    actor_rollout_ref.actor.megatron.dist_checkpointing_path=${MCORE_MODEL_PATH} \
    actor_rollout_ref.actor.megatron.use_dist_checkpointing=True \
    actor_rollout_ref.ref.megatron.pipeline_model_parallel_size=${train_pp} \
    actor_rollout_ref.ref.megatron.tensor_model_parallel_size=${train_tp} \
    actor_rollout_ref.ref.megatron.expert_model_parallel_size=${train_ep} \
    actor_rollout_ref.ref.megatron.context_parallel_size=${train_cp} \
    actor_rollout_ref.ref.megatron.param_offload=${offload} \
    actor_rollout_ref.ref.megatron.dist_checkpointing_path=${MCORE_MODEL_PATH} \
    actor_rollout_ref.actor.entropy_coeff=0 \
    actor_rollout_ref.actor.loss_agg_mode=${loss_agg_mode} \
    actor_rollout_ref.rollout.gpu_memory_utilization=0.7 \
    actor_rollout_ref.rollout.tensor_model_parallel_size=${gen_tp} \
    actor_rollout_ref.rollout.enable_chunked_prefill=True \
    actor_rollout_ref.rollout.enable_prefix_caching=False \
    actor_rollout_ref.rollout.max_num_batched_tokens=${max_num_batched_tokens} \
    actor_rollout_ref.rollout.max_model_len=$((max_prompt_length + max_response_length)) \
    actor_rollout_ref.rollout.temperature=${temperature} \
    actor_rollout_ref.rollout.top_p=${top_p} \
    actor_rollout_ref.rollout.top_k=${top_k} \
    actor_rollout_ref.rollout.val_kwargs.temperature=${temperature} \
    actor_rollout_ref.rollout.val_kwargs.top_p=${top_p} \
    actor_rollout_ref.rollout.val_kwargs.top_k=${top_k} \
    actor_rollout_ref.rollout.val_kwargs.do_sample=True \
    actor_rollout_ref.rollout.val_kwargs.n=1 \
    actor_rollout_ref.rollout.enforce_eager=True \
    actor_rollout_ref.rollout.free_cache_engine=True \
    actor_rollout_ref.ref.megatron.use_dist_checkpointing=True \
    reward_model.reward_manager=dapo \
    reward_model.overlong_buffer.enable=${enable_overlong_buffer} \
    reward_model.overlong_buffer.len=${overlong_buffer_len} \
    reward_model.overlong_buffer.penalty_factor=${overlong_penalty_factor} \
    trainer.logger=['console'] \
    trainer.project_name="${project_name}" \
    trainer.experiment_name="${exp_name}" \
    trainer.n_gpus_per_node=16 \
    trainer.nnodes="${NNODES}" \
    trainer.val_before_train=False \
    trainer.test_freq=-1 \
    trainer.save_freq=-1 \
    trainer.total_epochs=1 \
    trainer.default_local_dir="${CKPTS_DIR}" \
    trainer.device="npu" \
    actor_rollout_ref.nccl_timeout=14400 \
    actor_rollout_ref.actor.use_torch_compile=False \
    actor_rollout_ref.ref.use_torch_compile=False \
    +actor_rollout_ref.actor.megatron.override_transformer_config.use_flash_attn=True \
    +actor_rollout_ref.actor.megatron.override_transformer_config.recompute_method=uniform \
    +actor_rollout_ref.actor.megatron.override_transformer_config.recompute_granularity=full \
    +actor_rollout_ref.actor.megatron.override_transformer_config.recompute_num_layers=1