diff --git a/.gitignore b/.gitignore
index 0503f3c95..94d952295 100644
--- a/.gitignore
+++ b/.gitignore
@@ -167,3 +167,9 @@ applications/ColossalChat/wandb
 applications/ColossalChat/model
 applications/ColossalChat/eval
 applications/ColossalChat/rollouts
+applications/ColossalChat/*.txt
+applications/ColossalChat/*.db
+applications/ColossalChat/stdin
+applications/ColossalChat/*.zip
+applications/ColossalChat/*.prof
+applications/ColossalChat/*.png
diff --git a/applications/ColossalChat/coati/dataset/loader.py b/applications/ColossalChat/coati/dataset/loader.py
index 43cf78383..16fd385ba 100755
--- a/applications/ColossalChat/coati/dataset/loader.py
+++ b/applications/ColossalChat/coati/dataset/loader.py
@@ -367,9 +367,9 @@ def apply_chat_template_and_mask(
     }
 
     # Format for RL.
-    gt_answer = None
-    if "messages" in chat and "gt_answer" in chat:
-        gt_answer = chat["gt_answer"]
+    if "messages" in chat:
+        gt_answer = chat.get("gt_answer", None)
+        test_cases = chat.get("test_cases", None)
         chat = [chat["messages"]]
 
     tokens = []
@@ -402,12 +402,14 @@ def apply_chat_template_and_mask(
     labels[~torch.tensor(assistant_mask, dtype=torch.bool)] = ignore_idx
 
     if gt_answer is not None:
-        gt_answer = tokenizer.encode(
-            gt_answer, padding="max_length", truncation=True, max_length=128, return_tensors="pt"
-        )
-        gt_answer = gt_answer.squeeze(1)
         return {"input_ids": input_ids, "attention_mask": attention_mask, "labels": labels, "gt_answer": gt_answer}
-
+    elif test_cases is not None:
+        return {
+            "input_ids": input_ids,
+            "attention_mask": attention_mask,
+            "labels": labels,
+            "test_cases": test_cases,
+        }
     return {
         "input_ids": input_ids,
         "attention_mask": attention_mask,
@@ -440,3 +442,20 @@ class RawConversationDataset(Dataset):
             tokens = apply_chat_template_and_mask(self.tokenizer, message, self.max_length, self.system_prompt)
             self.tokenized_texts[index] = dict(tokens)
         return self.tokenized_texts[index]
+
+
+def collate_fn_grpo(batch):
+    input_ids = [item["input_ids"] for item in batch]
+    attention_mask = [item["attention_mask"] for item in batch]
+    labels = [item["labels"] for item in batch]
+    # Assume input_ids, attention_mask, labels are already of the same length,
+    # otherwise use pad_sequence(input_ids, batch_first=True, padding_value=tokenizer.pad_token_id)
+    input_ids = torch.stack(input_ids)
+    attention_mask = torch.stack(attention_mask)
+    labels = torch.stack(labels)
+    ret = {"input_ids": input_ids, "attention_mask": attention_mask, "labels": labels}
+    if "test_cases" in batch[0]:
+        ret["test_cases"] = [item["test_cases"] for item in batch]
+    if "gt_answer" in batch[0]:
+        ret["gt_answer"] = [item["gt_answer"] for item in batch]
+    return ret
diff --git a/applications/ColossalChat/coati/distributed/README.md b/applications/ColossalChat/coati/distributed/README.md
index e68dfb812..74e30bc46 100644
--- a/applications/ColossalChat/coati/distributed/README.md
+++ b/applications/ColossalChat/coati/distributed/README.md
@@ -86,6 +86,50 @@ Then write IP node map to /etc/hosts
 
 Set Ascend Multi-Node Config
 
+
+This repository implements a distributed Reinforcement Learning (RL) training framework designed to fine-tune large language models using algorithms such as **GRPO** and **DAPO**. It supports multi-node and multi-GPU setups, scalable rollout generation, and policy optimization using libraries like VLLM. Currently, we support two Reinforcement Learning with Verifiable Reward (RLVR) tasks: solving math problems and code generation.
+
+**Please note that we are still under intensive development, stay tuned.**
+
+---
+
+## 🚀 Features
+
+* **Distributed Training with Ray**: Scalable to multiple machines and GPUs.
+* **Support for GRPO and DAPO**: Choose your preferred policy optimization algorithm.
+* **Model Backends**: Support `vllm` as inference backends.
+* **Rollout and Policy Decoupling**: Efficient generation and consumption of data through parallel inferencer-trainer architecture.
+* **Evaluation Integration**: Easily plug in task-specific eval datasets.
+* **Checkpoints and Logging**: Configurable intervals and directories.
+
+---
+
+## 🛠 Installation
+
+### Prepare Develop Environment
+
+Install Colossalai & ColossalChat
+```bash
+git clone https://github.com/hpcaitech/ColossalAI.git
+git checkout grpo-latest
+BUILD_EXT=1 pip install -e .
+
+cd ./applications/ColossalChat
+pip install -e .
+```
+
+Install vllm
+```bash
+pip install vllm==0.7.3
+```
+
+Install Ray.
+```bash
+pip install ray
+```
+
+Install Other Dependencies
+
 ```bash
 export ATB_LLM_HCCL_ENABLE=1
 export ATB_LLM_COMM_BACKEND="hccl"
@@ -242,6 +286,7 @@ In addition to the two default training settings we provided--- original `GRPO`
     train_tensor_parallelism_size)
   ```
 
+
 ---
 
 ## 🧪 Example: single machine 8-GPU Zero2 Strategy
@@ -292,6 +337,54 @@ plugin_config={
   },  # for pp, tp
 ```
 
+```bash
+# Hint1: replace /models/Qwen/Qwen2.5-7B to your model path
+#        replace /datasets/train-alignment.jsonl to your dataset path
+python rl_example.py
+  -m /path/to/Qwen2.5-Math-7B/ \
+  -d /path/to/train_data.jsonl \
+  --master_address '10.0.0.3'
+  -t 16 \
+  -i 16 \
+  -p GRPO-Train-Align-Debug \
+  -g 2 \
+  -ibs 1 \
+  -tbs 2 \
+  -tMbs 1 \
+  -tmbs 2 \
+  -imbs 1 \
+  -s "Please reason step by step, and put your final answer within \\boxed{}." \
+  -tMbs 8 \
+  -p GRPO-Train-Align-Debug \
+```
+
+## 🧪 Example: multi-machine TP+PP Strategy
+
+### Create ray cluster on multi-machine
+For example, now we have 4 nodes and their IPs are 10.0.0.3, 10.0.0.4, 10.0.0.5, 10.0.0.6.
+We use 10.0.0.3 as master node. First we start a ray cluster on 10.0.0.3:
+```bash
+ray start --head --node-ip-address=10.0.0.3
+```
+
+Then, for each slave node (10.0.0.4/10.0.0.5/10.0.0.6), we add to the ray cluser by following code:
+```bash
+ray start --address='10.0.0.3:6379'
+```
+
+Modify plugin_config in ./applications/ColossalChat/rl_example.py
+```python
+plugin_config={
+  "tp_size": 4,
+  "pp_size": 2,
+  "microbatch_size": max(
+    1, args.train_microbatch_size // 2
+  ),  # microbatch size should be set to train_microbatch_size // pp_size
+  "zero_stage": 1,
+  "max_norm": 1.0,
+  },  # for pp, tp
+```
+
 ```bash
 # Hint1: replace /models/Qwen/Qwen2.5-7B to your model path
 #        replace /datasets/train-alignment.jsonl to your dataset path
diff --git a/applications/ColossalChat/coati/distributed/grpo_consumer.py b/applications/ColossalChat/coati/distributed/grpo_consumer.py
index 4ca23e911..a48f87224 100644
--- a/applications/ColossalChat/coati/distributed/grpo_consumer.py
+++ b/applications/ColossalChat/coati/distributed/grpo_consumer.py
@@ -8,7 +8,6 @@ from coati.distributed.consumer import BaseConsumer
 from coati.distributed.loss import PolicyLoss
 from coati.distributed.reward.reward_fn import boxed_math_reward_fn, math_reward_fn
 from coati.distributed.reward.verifiable_reward import VerifiableReward
-from coati.distributed.utils import calc_action_log_probs
 from coati.trainer.utils import all_reduce_mean, all_reduce_sum
 from transformers import AutoModelForCausalLM, AutoTokenizer
 
@@ -145,7 +144,10 @@ class GRPOConsumer(BaseConsumer):
     def setup(self):
         super().setup()
         if (not self.plugin.pp_size > 1 and self.rank == 0) or (
-            self.plugin.pp_size > 1 and self.booster.plugin.stage_manager.is_last_stage() and self.tp_rank == 0
+            self.plugin.pp_size > 1
+            and self.booster.plugin.stage_manager.is_last_stage()
+            and self.tp_rank == 0
+            and self.dp_rank == 0
         ):
             self.wandb_run = wandb.init(
                 project=self.project_name,
@@ -237,7 +239,6 @@ class GRPOConsumer(BaseConsumer):
         effective_samples = all_reduce_sum(torch.sum(loss_mask), self.plugin)
         effective_tokens_count = torch.sum(action_mask, dim=-1) * loss_mask
         total_effective_tokens_count = all_reduce_sum(torch.sum(effective_tokens_count), self.plugin)
-        total_samples = all_reduce_sum(torch.sum(torch.ones_like(loss_mask, device=loss_mask.device)), self.plugin)
         self.effective_sample_count += effective_samples.item()
         pbar.set_postfix(
             {
@@ -295,12 +296,11 @@ class GRPOConsumer(BaseConsumer):
                             )
 
                         if self.booster.plugin.stage_manager.is_last_stage():
-                            reference_model_logits = reference_model_outputs["outputs"]["logits"]
-                            reference_action_log_probs = calc_action_log_probs(
-                                reference_model_logits / self.generate_config["temperature"],
+                            reference_action_log_probs = memory_efficient_logprob(
+                                reference_model_outputs["outputs"]["logits"] / self.generate_config["temperature"],
                                 input_ids_forward_micro_batch,
                                 num_action,
-                                self.plugin.shard_config,
+                                shard_config=self.plugin.shard_config,
                             )
                         else:
                             # Dummy reference logprobs for data iterator.
@@ -323,11 +323,11 @@ class GRPOConsumer(BaseConsumer):
 
                     def _criterion(outputs, inputs):
                         action_logits = outputs.logits
-                        action_log_probs = calc_action_log_probs(
+                        action_log_probs = memory_efficient_logprob(
                             action_logits / self.generate_config["temperature"],
                             inputs["input_ids"],
                             num_action,
-                            self.plugin.shard_config,
+                            shard_config=self.plugin.shard_config,
                         )
                         if "reference_action_log_probs" in inputs:
                             per_token_kl = (
@@ -370,16 +370,15 @@ class GRPOConsumer(BaseConsumer):
                             mean_kl.append(kl)
                         mean_loss.append(all_reduce_mean(loss, self.plugin).data)
                 else:
-
                     policy_model_logits = self.policy_model(
                         input_ids=input_ids_forward_micro_batch,
                         attention_mask=attention_mask_forward_micro_batch,
                     ).logits
-                    action_log_probs = calc_action_log_probs(
+                    action_log_probs = memory_efficient_logprob(
                         policy_model_logits / self.generate_config["temperature"],
                         input_ids_forward_micro_batch,
                         num_action,
-                        self.plugin.shard_config,
+                        shard_config=self.plugin.shard_config,
                     )
 
                     if self.policy_loss_fn.beta > 0:
@@ -388,11 +387,11 @@ class GRPOConsumer(BaseConsumer):
                                 input_ids=input_ids_forward_micro_batch,
                                 attention_mask=attention_mask_forward_micro_batch,
                             ).logits
-                        reference_action_log_probs = calc_action_log_probs(
+                        reference_action_log_probs = memory_efficient_logprob(
                             reference_model_logits / self.generate_config["temperature"],
                             input_ids_forward_micro_batch,
                             num_action,
-                            self.plugin.shard_config,
+                            shard_config=self.plugin.shard_config,
                         )
                         per_token_kl = (
                             torch.exp(reference_action_log_probs - action_log_probs)
@@ -424,7 +423,10 @@ class GRPOConsumer(BaseConsumer):
                         mean_kl.append(kl.data)
                     mean_loss.append(loss.data)
             if not self.plugin.pp_size > 1 or (
-                self.plugin.pp_size > 1 and self.booster.plugin.stage_manager.is_last_stage() and self.tp_rank == 0
+                self.plugin.pp_size > 1
+                and self.booster.plugin.stage_manager.is_last_stage()
+                and self.tp_rank == 0
+                and self.dp_rank == 0
             ):
                 reward = all_reduce_mean(reward.mean(), self.plugin)
                 format_acc = all_reduce_mean(format_acc.mean(), self.plugin)
diff --git a/applications/ColossalChat/coati/distributed/inference_backend.py b/applications/ColossalChat/coati/distributed/inference_backend.py
index 7988802a3..056c57b1d 100644
--- a/applications/ColossalChat/coati/distributed/inference_backend.py
+++ b/applications/ColossalChat/coati/distributed/inference_backend.py
@@ -74,9 +74,8 @@ class TransformersInferenceBackend(BaseInferenceBackend):
         micro_batch_size = input_ids.size(0)
         input_ids = input_ids.to(get_current_device())
         attention_mask = attention_mask.to(get_current_device())
-        gt_answer = None
-        if "gt_answer" in kwargs:
-            gt_answer = kwargs.pop("gt_answer")
+        gt_answer = kwargs.pop("gt_answer", None)
+        test_cases = kwargs.pop("test_cases", None)
         if self.num_generations > 1:
             input_ids = input_ids.repeat_interleave(self.num_generations, dim=0)
             attention_mask = attention_mask.repeat_interleave(self.num_generations, dim=0)
@@ -116,8 +115,9 @@ class TransformersInferenceBackend(BaseInferenceBackend):
         data = {k: v.view(micro_batch_size, self.num_generations, v.size(-1)) for k, v in data.items()}
 
         if gt_answer is not None:
-            # repeat gt_answer for each prompt.
-            data["gt_answer"] = gt_answer.repeat_interleave(self.num_generations, dim=1)
+            data["gt_answer"] = gt_answer
+        if test_cases is not None:
+            data["test_cases"] = test_cases
         data = {k: v.to(get_current_device()) for k, v in data.items()}
         return data
 
@@ -270,11 +270,11 @@ class VLLMInferenceBackend(BaseInferenceBackend):
         }
 
         data = {k: v.view(micro_batch_size, -1, v.size(-1)) for k, v in data.items()}
-
-        if "gt_answer" in kwargs:
-            # repeat gt_answer for each prompt.
-            data["gt_answer"] = kwargs["gt_answer"].repeat_interleave(data["input_ids"].size(1), dim=1)
         data = {k: v.to(get_current_device()) for k, v in data.items()}
+        if "gt_answer" in kwargs:
+            data["gt_answer"] = kwargs["gt_answer"]
+        if "test_cases" in kwargs:
+            data["test_cases"] = kwargs["test_cases"]
         return data
 
     def load_state_dict(self, state_dict: Dict[str, torch.Tensor]) -> None:
diff --git a/applications/ColossalChat/coati/distributed/launch.py b/applications/ColossalChat/coati/distributed/launch.py
index ef6ef5104..cb8ccb172 100644
--- a/applications/ColossalChat/coati/distributed/launch.py
+++ b/applications/ColossalChat/coati/distributed/launch.py
@@ -16,7 +16,7 @@ def get_jsonl_size_fast(path: str) -> int:
     with open(path) as f:
         lines = f.readlines()
         lines = [line for line in lines if line.strip()]
-        return len(lines) - 1
+        return len(lines)
 
 
 def get_dp_size_fast(n_procs: int, plugin_config: Dict[str, Any]) -> int:
@@ -36,7 +36,6 @@ def launch_distributed(
     train_batch_size: int,
     train_minibatch_size: int,
     train_dataset_config: Dict[str, Any],
-    dataloaders_config: Dict[str, Any],
     inference_model_config: Dict[str, Any],
     generate_config: Dict[str, Any],
     train_model_config: Dict[str, Any],
@@ -121,7 +120,6 @@ def launch_distributed(
             num_episodes=num_episodes,
             batch_size=inference_batch_size,
             train_dataset_config=train_dataset_config,
-            dataloaders_config=dataloaders_config,
             model_config=inference_model_config,
             generate_config=generate_config,
             tokenizer_config=tokenizer_config,
diff --git a/applications/ColossalChat/coati/distributed/producer.py b/applications/ColossalChat/coati/distributed/producer.py
index 47bdc5dd5..9fdaed058 100644
--- a/applications/ColossalChat/coati/distributed/producer.py
+++ b/applications/ColossalChat/coati/distributed/producer.py
@@ -8,8 +8,8 @@ import ray.util.collective as cc
 import torch
 import tqdm
 import wandb
-from coati.dataset.loader import RawConversationDataset
-from coati.distributed.reward.reward_fn import boxed_math_reward_fn, math_reward_fn
+from coati.dataset.loader import RawConversationDataset, collate_fn_grpo
+from coati.distributed.reward.reward_fn import boxed_math_reward_fn, code_reward_fn, math_reward_fn
 from ray.util.collective import allreduce
 from ray.util.collective.types import ReduceOp
 from torch.utils.data import DataLoader, DistributedSampler
@@ -34,7 +34,6 @@ class BaseProducer:
         num_episodes: int,
         batch_size: int,
         train_dataset_config: Dict[str, Any],
-        dataloaders_config: Dict[str, Any],
         model_config: Dict[str, Any],
         generate_config: Dict[str, Any],
         tokenizer_config: Optional[Dict[str, Any]] = None,
@@ -73,6 +72,13 @@ class BaseProducer:
         self.eval_mode = False
         self.log_rollout_interval = log_rollout_interval
         self.latest_rollout_log_step = -1
+        self.grpo_config = grpo_config
+        reward_model_kwargs = {
+            k: v
+            for k, v in grpo_config.items()
+            if k in ["soft_over_length_punishment", "max_new_tokens", "cache_length"]
+        }
+        self.response_format_tags = grpo_config.get("response_format_tags", None)
         if producer_idx == 0:
             if os.path.exists(rollout_log_file):
                 raise ValueError(
@@ -118,7 +124,16 @@ class BaseProducer:
             ),
             num_workers=4,
             drop_last=True,
+            collate_fn=collate_fn_grpo,
         )
+        if grpo_config["reward_fn_type"] == "think_answer_tags":
+            self.evaluation_function = math_reward_fn
+        elif grpo_config["reward_fn_type"] == "boxed":
+            self.evaluation_function = boxed_math_reward_fn
+        elif grpo_config["reward_fn_type"] == "code":
+            self.evaluation_function = code_reward_fn
+        else:
+            raise ValueError(f"Unknown evaluation function type {grpo_config['reward_fn_type']}")
 
         self.eval_dataset_config = eval_dataset_config
         if self.eval_dataset_config is not None:
@@ -140,6 +155,7 @@ class BaseProducer:
                         drop_last=False,
                         seed=42,
                     ),
+                    collate_fn=collate_fn_grpo,
                 )
             if evaluation_function_type == "think_answer_tags":
                 self.evaluation_function = math_reward_fn
@@ -212,7 +228,13 @@ class BaseProducer:
                                 eval_results = eval_results + [
                                     self.evaluation_function(
                                         eval_outputs["input_ids"][m][n],
-                                        eval_outputs["gt_answer"][m][n],
+                                        eval_outputs[
+                                            (
+                                                "test_cases"
+                                                if self.grpo_config["reward_fn_type"] == "code"
+                                                else "gt_answer"
+                                            )
+                                        ][m],
                                         eval_outputs["response_idx"][m][n],
                                         tokenizer=self.tokenizer,
                                         eval_mode=True,
@@ -311,7 +333,6 @@ class SimpleProducer(BaseProducer):
         num_episodes,
         batch_size,
         train_dataset_config,
-        dataloaders_config,
         model_config,
         generate_config,
         tokenizer_config=None,
@@ -338,7 +359,6 @@ class SimpleProducer(BaseProducer):
             num_episodes,
             batch_size,
             train_dataset_config,
-            dataloaders_config,
             model_config,
             generate_config,
             tokenizer_config,
diff --git a/applications/ColossalChat/coati/distributed/reward/code_reward/testing_util.py b/applications/ColossalChat/coati/distributed/reward/code_reward/testing_util.py
new file mode 100644
index 000000000..c6d6d8fad
--- /dev/null
+++ b/applications/ColossalChat/coati/distributed/reward/code_reward/testing_util.py
@@ -0,0 +1,669 @@
+# Code from the verl Project (https://github.com/agentica-project/rllm),
+# which itself is adapted from Prime (https://github.com/PRIME-RL/PRIME)
+#
+# Copyright 2024 ByteDance Group
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+import ast
+import faulthandler
+import json
+import platform
+
+# to run the solution files we're using a timing based approach
+import signal
+import sys
+import traceback
+
+# used for debugging to time steps
+from datetime import datetime
+from enum import Enum
+
+# for capturing the stdout
+from io import StringIO
+
+# used for testing the code that reads from input
+from unittest.mock import mock_open, patch
+
+import numpy as np
+from pyext import RuntimeModule
+
+
+def truncatefn(s, length=300):
+    assert isinstance(s, str)
+    if len(s) <= length:
+        return s
+
+    return s[: length // 2] + "...(truncated) ..." + s[-length // 2 :]
+
+
+class CODE_TYPE(Enum):
+    call_based = 0
+    standard_input = 1
+
+
+# used to capture stdout as a list
+# from https://stackoverflow.com/a/16571630/6416660
+# alternative use redirect_stdout() from contextlib
+class Capturing(list):
+    def __enter__(self):
+        self._stdout = sys.stdout
+        sys.stdout = self._stringio = StringIO()
+        # Make closing the StringIO a no-op
+        self._stringio.close = lambda x: 1
+        return self
+
+    def __exit__(self, *args):
+        self.append(self._stringio.getvalue())
+        del self._stringio  # free up some memory
+        sys.stdout = self._stdout
+
+
+def only_int_check(val):
+    return isinstance(val, int)
+
+
+def string_int_check(val):
+    return isinstance(val, str) and val.isdigit()
+
+
+def combined_int_check(val):
+    return only_int_check(val) or string_int_check(val)
+
+
+def clean_traceback(error_traceback):
+    file_start = error_traceback.find('File "<string>"')
+    # print(file_start)
+    error_traceback = "Traceback (most recent call last):\n  " + error_traceback[file_start:]
+    return error_traceback
+
+
+def run_test(in_outs, test=None, debug=False, timeout=15):
+    """
+    if test(generated_code) is not None it'll try to run the code.
+    otherwise it'll just return an input and output pair.
+    """
+    # Disable functionalities that can make destructive changes to the test.
+    reliability_guard()
+
+    if debug:
+        print(f"start = {datetime.now().time()}")
+
+    if in_outs:
+        if in_outs.get("fn_name") is None:
+            which_type = CODE_TYPE.standard_input  # Standard input
+            method_name = None
+        else:
+            which_type = CODE_TYPE.call_based  # Call-based
+            method_name = in_outs["fn_name"]
+
+    if debug:
+        print(f"loaded input_output = {datetime.now().time()}")
+
+    if test is None:
+        raise AssertionError("should not happen: test code is none")
+    elif test is not None:
+        results = []
+        sol = "from string import *\nfrom re import *\nfrom datetime import *\nfrom collections import *\nfrom heapq import *\nfrom bisect import *\nfrom copy import *\nfrom math import *\nfrom random import *\nfrom statistics import *\nfrom itertools import *\nfrom functools import *\nfrom operator import *\nfrom io import *\nfrom sys import *\nfrom json import *\nfrom builtins import *\nfrom typing import *\nimport string\nimport re\nimport datetime\nimport collections\nimport heapq\nimport bisect\nimport copy\nimport math\nimport random\nimport statistics\nimport itertools\nimport functools\nimport operator\nimport io\nimport sys\nimport json\nsys.setrecursionlimit(6*10**5)\n"  # noqa: E501
+        if debug:
+            print(f"loading test code = {datetime.now().time()}")
+
+        if which_type == CODE_TYPE.call_based:
+            sol += test
+            if debug:
+                print(f"sol = {sol}")
+            signal.alarm(timeout)
+            try:
+                tmp_sol = RuntimeModule.from_string("tmp_sol", "", sol)
+                tmp = tmp_sol if "class Solution" not in test else tmp_sol.Solution()
+                signal.alarm(0)
+            except Exception as e:
+                signal.alarm(0)
+                error_traceback = traceback.format_exc()
+                if debug:
+                    print(f"type 0 compilation error = {e}")
+                results.append(-2)
+                return results, {
+                    "error": repr(e),
+                    # "error_code": -1,
+                    # "error_message": "Compilation Error",
+                    "traceback": clean_traceback(error_traceback),
+                }
+            signal.alarm(0)
+
+        elif which_type == CODE_TYPE.standard_input:
+            # sol
+            # if code has if __name__ == "__main__": then remove it
+            try:
+                astree = ast.parse(test)
+                last_block = astree.body[-1]
+                if isinstance(last_block, ast.If):
+                    condition = last_block.test
+                    if ast.unparse(condition).strip() == "__name__ == '__main__'":
+                        test = ast.unparse(astree.body[:-1]) + "\n" + ast.unparse(last_block.body)
+            except Exception:
+                pass
+
+            tmp_test = test.split("\n")
+
+            new_test = []
+            for x in tmp_test:
+                if (not x.startswith("from ")) and (not x.startswith("import ")):
+                    new_test.append("\t" + x + "\n")
+                else:
+                    new_test.append(x + "\n")
+            tmp_test = new_test
+
+            new_test = ""
+            started = False
+            for i in tmp_test:
+                if i.startswith("\t") and not started:
+                    new_test += "stdin = sys.stdin\nstdout = sys.stdout\n"
+                    new_test += "def code():\n"
+                    new_test += i
+                    started = True
+                elif started and ((i.startswith("from ")) or (i.startswith("import "))):
+                    new_test += "\t" + i
+                else:
+                    new_test += i
+            tmp_test = new_test
+
+            sol += tmp_test
+            if debug:
+                print(f"sol = {sol}")
+            method_name = "code"
+            signal.alarm(timeout)
+            try:
+                tmp_sol = RuntimeModule.from_string("tmp_sol", "", sol)
+                tmp = tmp_sol
+                signal.alarm(0)
+            except Exception as e:
+                signal.alarm(0)
+                error_traceback = traceback.format_exc()
+                if debug:
+                    print(f"type 1 compilation error = {e}")
+                results.append(-2)
+                return results, {
+                    "error": repr(e),
+                    # "error_code": -1,
+                    # "error_message": "Compilation Error",
+                    "traceback": clean_traceback(error_traceback),
+                }
+            signal.alarm(0)
+        if debug:
+            print(f"get method = {datetime.now().time()}")
+
+        try:
+            method = getattr(tmp, method_name)  # get_attr second arg must be str
+        except Exception:
+            signal.alarm(0)
+            error_traceback = traceback.format_exc()
+            error_info = sys.exc_info()
+            print(f"unable to get function error = {error_info}")
+            results.append(-2)
+            return results, {
+                "error": repr(error_info),
+                # "error_code": -1,
+                # "error_message": "Unable to extract code",
+                "traceback": clean_traceback(error_traceback),
+            }
+
+        for index, inputs in enumerate(in_outs["inputs"]):
+            raw_inputs = inputs
+            raw_outputs = in_outs["outputs"][index]
+            if which_type == CODE_TYPE.call_based:
+                inputs = [json.loads(line) for line in inputs.split("\n")]
+                in_outs["outputs"][index] = json.loads(in_outs["outputs"][index])
+
+                truncate_line_size = 300 // (raw_inputs.count("\n") + 1)
+                raw_inputs = "\n".join(
+                    [truncatefn(line, truncate_line_size) for line in raw_inputs.strip().split("\n")]
+                )
+                raw_outputs = truncatefn(raw_outputs, 200)
+            else:
+                raw_inputs = truncatefn(raw_inputs)
+                raw_outputs = truncatefn(raw_outputs, 200)
+            # JSON forces dictionaries to have string keys; this undoes this (assuming a singleton list)
+            try:
+                if isinstance(inputs[0], dict):
+                    inputs = [{int(k): v for k, v in inputs[0].items()}]
+            except Exception:
+                pass
+            try:
+                if isinstance(in_outs["outputs"][index], dict):
+                    in_outs["outputs"][index] = [{int(k): v for k, v in in_outs["outputs"][index].items()}]
+            except Exception:
+                pass
+            try:
+                if isinstance(in_outs["outputs"][index][0], dict):
+                    in_outs["outputs"][index] = [{int(k): v for k, v in in_outs["outputs"][index][0].items()}]
+            except Exception:
+                pass
+
+            if debug:
+                print(
+                    f"time: {datetime.now().time()} testing index = {index}  inputs = {inputs}, {type(inputs)}. type = {which_type}"
+                )
+            if which_type == CODE_TYPE.call_based:  # Call-based
+                signal.alarm(timeout)
+                faulthandler.enable()
+                try:
+                    output = method(*inputs)
+                    raw_true_output = output
+
+                    raw_true_output_copy = json.dumps(output)
+                    raw_true_output_copy = truncatefn(raw_true_output_copy, 200)
+
+                    # ground truth sequences are not tuples
+                    if isinstance(output, tuple):
+                        output = list(output)
+
+                    tmp_result = output == in_outs["outputs"][index]
+                    if isinstance(in_outs["outputs"][index], list) and in_outs["outputs"][index]:
+                        tmp_result = tmp_result or (output == in_outs["outputs"][index][0])
+
+                    # ground truth sequences are not tuples
+                    try:
+                        if isinstance(output[0], tuple):
+                            tmp_result = tmp_result or ([list(x) for x in output] == in_outs["outputs"][index][0])
+                    except Exception:
+                        pass
+                    results.append(tmp_result)
+                    if tmp_result is not True:
+                        return results, {
+                            "output": raw_true_output_copy,
+                            "expected": raw_outputs,
+                            "inputs": raw_inputs,
+                            # "error_code": -2,
+                            "error_message": "Wrong Answer",
+                        }
+                    # reset the alarm
+                    signal.alarm(0)
+                except Exception as e:
+                    signal.alarm(0)
+                    error_traceback = traceback.format_exc()
+                    faulthandler.disable()
+                    if debug:
+                        print(f"Standard input runtime error or time limit exceeded error = {e}")
+                    results.append(-1)
+                    return results, {
+                        "error": repr(e),
+                        "traceback": clean_traceback(error_traceback),
+                    }
+                faulthandler.disable()
+                signal.alarm(0)
+                if debug:
+                    print(
+                        f"outputs = {output}, test outputs = {in_outs['outputs'][index]}, inputs = {inputs}, {type(inputs)}, {output == [in_outs['outputs'][index]]}"
+                    )
+            elif which_type == CODE_TYPE.standard_input:  # Standard input
+                faulthandler.enable()
+                passed = False
+
+                if isinstance(inputs, list):
+                    inputs = "\n".join(inputs)
+                if isinstance(in_outs["outputs"][index], list):
+                    in_outs["outputs"][index] = "\n".join(in_outs["outputs"][index])
+
+                signal.alarm(timeout)
+                with Capturing() as output:
+                    try:
+                        call_method(method, inputs)
+                        # reset the alarm
+                        signal.alarm(0)
+                        passed = True
+                    except Exception as e:
+                        # runtime error or took too long
+                        signal.alarm(0)
+                        error_traceback = traceback.format_exc()
+                        print(f"Call-based runtime error or time limit exceeded error = {repr(e)}{e}")
+                        results.append(-1)
+                        return results, {
+                            "error": repr(e),
+                            "traceback": clean_traceback(error_traceback),
+                        }
+                    signal.alarm(0)
+                raw_true_output = output[0]
+                raw_true_output_copy = truncatefn(raw_true_output, 200)
+                output = raw_true_output.splitlines()
+                if not passed:
+                    if debug:
+                        nl = "\n"
+                        if not isinstance(inputs, list):
+                            print(
+                                f"not passed output = {output}, test outputs = {in_outs['outputs'][index]}, inputs = {inputs.replace(nl, ' new-line ')}, {type(inputs)}, {output == [in_outs['outputs'][index]]}"
+                            )
+                        else:
+                            print(
+                                f"not passed output = {output}, test outputs = {in_outs['outputs'][index]}, inputs = {inputs}, {type(inputs)}, {output == [in_outs['outputs'][index]]}"
+                            )
+                    continue
+
+                if passed and debug:
+                    print(f"==> output = {output}, test outputs = {in_outs['outputs'][index]}")
+
+                if custom_compare_(output, in_outs["outputs"][index]):
+                    tmp_result = True
+                    results.append(tmp_result)
+                    continue
+
+                # ground truth sequences are expressed as lists not tuples
+                if isinstance(output, tuple):
+                    output = list(output)
+
+                tmp_result = False
+                try:
+                    tmp_result = output == [in_outs["outputs"][index]]
+                    if isinstance(in_outs["outputs"][index], list):
+                        tmp_result = tmp_result or (output == in_outs["outputs"][index])
+                        if isinstance(output[0], str):
+                            tmp_result = tmp_result or ([e.strip() for e in output] == in_outs["outputs"][index])
+                except Exception as e:
+                    if debug:
+                        print(f"Failed check1 exception = {e}")
+
+                if tmp_result is True:
+                    results.append(tmp_result)
+                    continue
+
+                # try one more time without \n
+                if isinstance(in_outs["outputs"][index], list):
+                    for tmp_index, i in enumerate(in_outs["outputs"][index]):
+                        in_outs["outputs"][index][tmp_index] = i.split("\n")
+                        in_outs["outputs"][index][tmp_index] = [
+                            x.strip() for x in in_outs["outputs"][index][tmp_index] if x
+                        ]
+                else:
+                    in_outs["outputs"][index] = in_outs["outputs"][index].split("\n")
+                    in_outs["outputs"][index] = list(filter(len, in_outs["outputs"][index]))
+                    in_outs["outputs"][index] = list(map(lambda x: x.strip(), in_outs["outputs"][index]))
+
+                try:
+                    tmp_result = output == [in_outs["outputs"][index]]
+                    if isinstance(in_outs["outputs"][index], list):
+                        tmp_result = tmp_result or (output == in_outs["outputs"][index])
+                except Exception as e:
+                    if debug:
+                        print(f"Failed check2 exception = {e}")
+
+                if tmp_result is True:
+                    results.append(tmp_result)
+                    continue
+
+                # try by converting the output into a split up list too
+                if isinstance(output, list):
+                    output = list(filter(len, output))
+
+                if debug:
+                    nl = "\n"
+                    if not isinstance(inputs, list):
+                        print(
+                            f"@1 output = {output}, test outputs = {in_outs['outputs'][index]}, inputs = {inputs.replace(nl, ' new-line ')}, {type(inputs)}, {output == [in_outs['outputs'][index]]} {tmp_result=}"
+                        )
+                    else:
+                        print(
+                            f"@1 output = {output}, test outputs = {in_outs['outputs'][index]}, inputs = {inputs}, {type(inputs)}, {output == [in_outs['outputs'][index]]} {tmp_result=}"
+                        )
+
+                if debug:
+                    print(f"{tmp_result=} @a")
+
+                try:
+                    tmp_result = output == [in_outs["outputs"][index]]
+                    if isinstance(in_outs["outputs"][index], list):
+                        tmp_result = tmp_result or (output == in_outs["outputs"][index])
+                except Exception as e:
+                    if debug:
+                        print(f"Failed check3 exception = {e}")
+
+                if debug:
+                    print(f"{tmp_result=} @b")
+
+                try:
+                    all_ints = all(
+                        combined_int_check(e1) and combined_int_check(e2)
+                        for e1, e2 in zip(output, in_outs["outputs"][index])
+                    )
+                    if not all_ints:
+                        if debug:
+                            print(
+                                [
+                                    combined_int_check(e1) and combined_int_check(e2)
+                                    for e1, e2 in zip(output, in_outs["outputs"][index])
+                                ]
+                            )
+                        output_float = [float(e) for e in output]
+                        gt_float = [float(e) for e in in_outs["outputs"][index]]
+                        tmp_result = tmp_result or (
+                            (len(output_float) == len(gt_float)) and np.allclose(output_float, gt_float)
+                        )
+                except Exception:
+                    pass
+
+                if debug:
+                    print(f"{tmp_result=} @c")
+
+                try:
+                    if isinstance(output[0], list):
+                        all_ints = all(
+                            combined_int_check(e1) and combined_int_check(e2)
+                            for e1, e2 in zip(output[0], in_outs["outputs"][index])
+                        )
+                        if not all_ints:
+                            output_float = [float(e) for e in output[0]]
+                            gt_float = [float(e) for e in in_outs["outputs"][index][0]]
+                            tmp_result = tmp_result or (
+                                (len(output_float) == len(gt_float)) and np.allclose(output_float, gt_float)
+                            )
+                except Exception:
+                    pass
+
+                if tmp_result is True:
+                    results.append(tmp_result)
+                    continue
+
+                if debug:
+                    print(f"{tmp_result=} @d")
+                # try by converting the stuff into split up list
+                if isinstance(in_outs["outputs"][index], list):
+                    for tmp_index, i in enumerate(in_outs["outputs"][index]):
+                        in_outs["outputs"][index][tmp_index] = set(i.split())
+                else:
+                    in_outs["outputs"][index] = set(in_outs["outputs"][index].split())
+
+                if debug:
+                    print(f"{tmp_result=} @e")
+
+                try:
+                    tmp_result = output == in_outs["outputs"][index]
+                except Exception as e:
+                    if debug:
+                        print(f"Failed check4 exception = {e}")
+                    continue
+
+                if tmp_result is True:
+                    results.append(tmp_result)
+                    continue
+
+                if debug:
+                    print(f"{tmp_result=} @f")
+
+                # try by converting the output into a split up list too
+                if isinstance(output, list):
+                    for tmp_index, i in enumerate(output):
+                        output[tmp_index] = i.split()
+                    output = list(filter(len, output))
+                    for tmp_index, i in enumerate(output):
+                        output[tmp_index] = set(i)
+                else:
+                    output = output.split()
+                    output = list(filter(len, output))
+                    output = set(output)
+
+                if debug:
+                    print(f"{tmp_result=} @g")
+
+                if tmp_result is True and debug:
+                    print("PASSED")
+
+                results.append(tmp_result)
+                if tmp_result is not True:
+                    return results, {
+                        "output": raw_true_output_copy,
+                        "expected": raw_outputs,
+                        "inputs": raw_inputs,
+                        # "error_code": -2,
+                        "error_message": "Wrong Answer",
+                    }
+
+                if debug:
+                    nl = "\n"
+                    if not isinstance(inputs, list):
+                        print(
+                            f"@2 output = {output}, test outputs = {in_outs['outputs'][index]}, inputs = {inputs.replace(nl, ' new-line ')}, {type(inputs)}, {output == [in_outs['outputs'][index]]}"
+                        )
+                    else:
+                        print(
+                            f"@2 output = {output}, test outputs = {in_outs['outputs'][index]}, inputs = {inputs}, {type(inputs)}, {output == [in_outs['outputs'][index]]}"
+                        )
+
+                    print(f"results = {results}")
+
+    return results, {}
+
+
+def custom_compare_(output, ground_truth):
+    if isinstance(output, list):
+        output_1 = "\n".join(output)
+        if stripped_string_compare(output_1, ground_truth):
+            return True
+
+    if isinstance(output, list):
+        output_2 = [o.lstrip().rstrip() for o in output]
+        output_2 = "\n".join(output_2)
+        if stripped_string_compare(output_2, ground_truth):
+            return True
+
+    return False
+
+
+def stripped_string_compare(s1, s2):
+    s1 = s1.lstrip().rstrip()
+    s2 = s2.lstrip().rstrip()
+    return s1 == s2
+
+
+def call_method(method, inputs):
+    if isinstance(inputs, list):
+        inputs = "\n".join(inputs)
+
+    inputs_line_iterator = iter(inputs.split("\n"))
+
+    # sys.setrecursionlimit(10000)
+
+    # @patch('builtins.input', side_effect=inputs.split("\n"))
+    @patch("builtins.open", mock_open(read_data=inputs))
+    @patch("sys.stdin", StringIO(inputs))
+    @patch("sys.stdin.readline", lambda *args: next(inputs_line_iterator))
+    @patch("sys.stdin.readlines", lambda *args: inputs.split("\n"))
+    @patch("sys.stdin.read", lambda *args: inputs)
+    # @patch('sys.stdout.write', print)
+    def _inner_call_method(_method):
+        try:
+            return _method()
+        except SystemExit:
+            pass
+        finally:
+            pass
+
+    return _inner_call_method(method)
+
+
+def reliability_guard(maximum_memory_bytes=None):
+    """
+    This disables various destructive functions and prevents the generated code
+    from interfering with the test (e.g. fork bomb, killing other processes,
+    removing filesystem files, etc.)
+    WARNING
+    This function is NOT a security sandbox. Untrusted code, including, model-
+    generated code, should not be blindly executed outside of one. See the
+    Codex paper for more information about OpenAI's code sandbox, and proceed
+    with caution.
+    """
+
+    if maximum_memory_bytes is not None:
+        import resource
+
+        resource.setrlimit(resource.RLIMIT_AS, (maximum_memory_bytes, maximum_memory_bytes))
+        resource.setrlimit(resource.RLIMIT_DATA, (maximum_memory_bytes, maximum_memory_bytes))
+        if platform.uname().system != "Darwin":
+            resource.setrlimit(resource.RLIMIT_STACK, (maximum_memory_bytes, maximum_memory_bytes))
+
+    faulthandler.disable()
+
+    import builtins
+
+    builtins.exit = None
+    builtins.quit = None
+
+    import os
+
+    os.environ["OMP_NUM_THREADS"] = "1"
+
+    os.kill = None
+    os.system = None  # 防止干扰repl评测
+    os.putenv = None
+    os.remove = None
+    os.removedirs = None
+    os.rmdir = None
+    os.fchdir = None
+    os.setuid = None
+    os.fork = None
+    os.forkpty = None
+    os.killpg = None
+    os.rename = None
+    os.renames = None
+    os.truncate = None
+    os.replace = None
+    os.unlink = None
+    os.fchmod = None
+    os.fchown = None
+    os.chmod = None
+    os.chown = None
+    os.chroot = None
+    os.lchflags = None
+    os.lchmod = None
+    os.lchown = None
+    os.getcwd = None
+    os.chdir = None
+
+    import shutil
+
+    shutil.rmtree = None
+    shutil.move = None
+    shutil.chown = None
+
+    import subprocess
+
+    subprocess.Popen = None  # type: ignore
+
+    __builtins__["help"] = None
+
+    import sys
+
+    sys.modules["ipdb"] = None
+    sys.modules["joblib"] = None
+    sys.modules["resource"] = None
+    sys.modules["psutil"] = None
+    sys.modules["tkinter"] = None
diff --git a/applications/ColossalChat/coati/distributed/reward/code_reward/utils.py b/applications/ColossalChat/coati/distributed/reward/code_reward/utils.py
new file mode 100644
index 000000000..e19e9e387
--- /dev/null
+++ b/applications/ColossalChat/coati/distributed/reward/code_reward/utils.py
@@ -0,0 +1,61 @@
+# Code from the verl Project (https://github.com/agentica-project/rllm),
+# which itself is adapted from Prime (https://github.com/PRIME-RL/PRIME)
+#
+# Copyright 2024 ByteDance Group
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import multiprocessing
+import os
+import sys
+import traceback
+from typing import Optional
+
+from .testing_util import run_test
+
+
+def _temp_run(sample, generation, debug, result, metadata_list, timeout):
+    with open(os.devnull, "w") as devnull:
+        sys.stdout = devnull
+        sys.stderr = devnull
+        try:
+            res, metadata = run_test(in_outs=sample, test=generation, debug=debug, timeout=timeout)
+            result.append(res)
+            metadata_list.append(metadata)
+        except Exception:
+            # print(e) # some tracebacks are extremely long.
+            traceback.print_exc(10)
+            result.append([-1 for i in range(len(sample["inputs"]))])
+            metadata_list.append({})
+
+
+def check_correctness(in_outs: Optional[dict], generation, timeout=10, debug=True):
+    """Check correctness of code generation with a global timeout.
+    The global timeout is to catch some extreme/rare cases not handled by the timeouts
+    inside `run_test`"""
+
+    manager = multiprocessing.Manager()
+    result = manager.list()
+    metadata_list = manager.list()
+    p = multiprocessing.Process(target=_temp_run, args=(in_outs, generation, debug, result, metadata_list, timeout))
+    p.start()
+    p.join(timeout=timeout + 1)
+    if p.is_alive():
+        p.kill()
+        # p.terminate()
+    if not result:
+        # consider that all tests failed
+        result = [[-1 for i in range(len(in_outs["inputs"]))]]
+        if debug:
+            print("global timeout")
+    return result[0], metadata_list
diff --git a/applications/ColossalChat/coati/distributed/reward/reward_fn.py b/applications/ColossalChat/coati/distributed/reward/reward_fn.py
index a4042ae97..5c8810fdf 100644
--- a/applications/ColossalChat/coati/distributed/reward/reward_fn.py
+++ b/applications/ColossalChat/coati/distributed/reward/reward_fn.py
@@ -1,7 +1,30 @@
+# Copyright 2024 ByteDance Group
+
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+
+#     http://www.apache.org/licenses/LICENSE-2.0
+
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""
+Some functions in this file are adapted from the verl project
+under the Apache License 2.0:
+https://github.com/volcengine/verl
+"""
+
+
+import json
+
 import torch
 from latex2sympy2_extended import NormalizationConfig
 from math_verify import ExprExtractionConfig, LatexExtractionConfig, parse, verify
 
+from .code_reward.utils import check_correctness as check_correctness_code
 from .reward_utils import extract_boxed_solution, extract_solution, validate_response_structure
 
 CANNOT_PARSE_GT_ANSWER = -1
@@ -98,15 +121,11 @@ def math_reward_fn(input_ids, gt_answer, response_idx, **kwargs):
         raise ValueError("no gt_answer is provided, please check your training dataset.")
 
     decoded_final_answer = tokenizer.decode(input_ids[s : e + 1], skip_special_tokens=True)
-    gt_answer = tokenizer.decode(gt_answer.squeeze(0), skip_special_tokens=True)
+
     final_answer, processed_str = extract_solution(decoded_final_answer)
 
     format_valid = validate_response_structure(processed_str, kwargs["tags"])
 
-    # Check format accuracy
-    if format_valid:
-        format_acc += 1
-
     # Check answer accuracy, answer is considered correct if the answer is correct and the format is valid
     if final_answer is not None:
         if eval_mode or format_valid:
@@ -114,6 +133,10 @@ def math_reward_fn(input_ids, gt_answer, response_idx, **kwargs):
         if not eval_mode:
             reward = reward + length_reward
 
+    # Check format accuracy
+    if format_valid:
+        format_acc += 1
+
     # Check if the sequence is over length
     if not eval_mode and res_length >= max_new_tokens:
         reward *= 0.0
@@ -138,7 +161,6 @@ def boxed_math_reward_fn(input_ids, gt_answer, response_idx, **kwargs):
     tokenizer = kwargs["tokenizer"]
     eval_mode = kwargs.get("eval_mode", False)
     soft_over_length_punishment = kwargs.get("soft_over_length_punishment", False)
-    format_score = 0.0
     acc_score = 10.0
     reward = torch.tensor(0.0)
     format_acc = torch.tensor(0.0)
@@ -161,7 +183,6 @@ def boxed_math_reward_fn(input_ids, gt_answer, response_idx, **kwargs):
 
     decoded_final_answer = tokenizer.decode(input_ids[s : e + 1], skip_special_tokens=True)
 
-    gt_answer = tokenizer.decode(gt_answer.squeeze(0), skip_special_tokens=True)
     final_answer = extract_boxed_solution(decoded_final_answer)
     format_valid = final_answer is not None
     if "tags" in kwargs and kwargs["tags"]:
@@ -169,10 +190,6 @@ def boxed_math_reward_fn(input_ids, gt_answer, response_idx, **kwargs):
         format_valid = format_valid and all(
             [decoded_final_answer.count(tags[tag]["text"]) == tags[tag]["num_occur"] for tag in tags]
         )
-    # Check format accuracy
-    if format_valid:
-        format_acc += 1
-        reward += format_score
 
     # Check answer accuracy, answer is considered correct if the answer is correct and the format is valid
     if final_answer is not None:
@@ -181,6 +198,10 @@ def boxed_math_reward_fn(input_ids, gt_answer, response_idx, **kwargs):
         if not eval_mode:
             reward = reward + length_reward
 
+    # Check format accuracy
+    if format_valid:
+        format_acc += 1
+
     # Check if the sequence is over length
     if not eval_mode and res_length >= max_new_tokens:
         reward *= 0.0
@@ -199,3 +220,78 @@ def boxed_math_reward_fn(input_ids, gt_answer, response_idx, **kwargs):
             "response_length": res_length,
             "reward": reward.item(),
         }
+
+
+def code_reward_fn(input_ids, test_cases, response_idx, **kwargs):
+    tokenizer = kwargs["tokenizer"]
+    eval_mode = kwargs.get("eval_mode", False)
+    soft_over_length_punishment = kwargs.get("soft_over_length_punishment", False)
+    acc_score = 10.0
+    reward = torch.tensor(0.0)
+    format_acc = torch.tensor(0.0)
+    ans_acc = torch.tensor(0.0)
+    s, e = response_idx[0], response_idx[1]
+
+    length_reward = 0.0
+    res_length = e.item() - s.item() + 1
+    if not eval_mode:
+        max_new_tokens = kwargs["max_new_tokens"]
+    else:
+        max_new_tokens = -1  # for eval mode, we don't need to check the length
+    if not eval_mode and soft_over_length_punishment:
+        cache_length = kwargs["cache_length"]
+        if max_new_tokens - cache_length < res_length < max_new_tokens:
+            length_reward = ((max_new_tokens - cache_length) - res_length) / cache_length * acc_score
+
+    # try to get code solution from completion. if the completion is pure code, this will not take effect.
+    decoded_final_answer = tokenizer.decode(input_ids[s : e + 1], skip_special_tokens=True)
+
+    solution = decoded_final_answer.split("```python")[-1].split("```")[0]
+    format_valid = False
+    if "```python" in decoded_final_answer:
+        format_valid = solution is not None
+
+    # Check format accuracy
+    if format_valid:
+        format_acc += 1
+
+    try:
+        try:
+            if not isinstance(test_cases, dict):
+                test_cases = json.loads(test_cases)
+        except Exception as e:
+            print(f"Error {e}: Cannot parse test cases.")
+            raise e
+        # Complete check on all in-out pairs first. If there is no failure, per-sample test can be skipped.
+        try:
+            res, metadata = check_correctness_code(in_outs=test_cases, generation=solution, timeout=10, debug=True)
+            metadata = dict(enumerate(metadata))[0]
+            success = all(map(lambda x: x is True, res))
+            if success:
+                ans_acc += 1
+                if eval_mode or format_valid:
+                    reward += acc_score
+                if not eval_mode:
+                    reward = reward + length_reward
+        except Exception:
+            pass
+
+        # Check if the sequence is over length
+        if not eval_mode and res_length >= max_new_tokens:
+            reward *= 0.0
+    except Exception:
+        pass
+    if not eval_mode:
+        return torch.tensor([reward, format_acc, ans_acc]).to(input_ids.device)
+    else:
+        prompt = tokenizer.decode(input_ids[:s], skip_special_tokens=True)
+        return {
+            "prompt": prompt,
+            "prediction": decoded_final_answer,
+            "gold": test_cases["outputs"],
+            "parsed": solution,
+            "format_valid": format_acc.item(),
+            "ans_valid": ans_acc.item(),
+            "response_length": res_length,
+            "reward": reward.item(),
+        }
diff --git a/applications/ColossalChat/coati/distributed/reward/verifiable_reward.py b/applications/ColossalChat/coati/distributed/reward/verifiable_reward.py
index ba83f7787..2f0b3778c 100644
--- a/applications/ColossalChat/coati/distributed/reward/verifiable_reward.py
+++ b/applications/ColossalChat/coati/distributed/reward/verifiable_reward.py
@@ -2,6 +2,7 @@
 Function-based reward verification module.
 """
 
+import inspect
 from typing import Any, Dict, List
 
 import torch
@@ -15,7 +16,8 @@ class VerifiableReward:
     def __call__(
         self,
         input_ids: torch.LongTensor,
-        gt_answer: List[torch.Tensor] = None,
+        gt_answer: List[str] = None,
+        test_cases: List[str] = None,
         response_idx: List[torch.Tensor] = None,
     ) -> torch.Tensor:
         # Get batch size
@@ -26,18 +28,44 @@ class VerifiableReward:
         # Loop through reward functions
         for reward_fn in self.reward_fns:
             # Apply the reward function to the entire batch at once
-            reward_batch = torch.stack(
-                [
-                    reward_fn(
-                        input_ids[i],
-                        gt_answer=gt_answer[i],
-                        response_idx=response_idx[i],
-                        **self.kwargs,
-                    )
-                    for i in range(bs)
-                ],
-                dim=0,
-            )
+            if "gt_answer" in inspect.getfullargspec(reward_fn).args:
+                reward_batch = torch.stack(
+                    [
+                        reward_fn(
+                            input_ids[i],
+                            gt_answer=gt_answer[i],
+                            response_idx=response_idx[i],
+                            **self.kwargs,
+                        )
+                        for i in range(bs)
+                    ],
+                    dim=0,
+                )
+            elif "test_cases" in inspect.getfullargspec(reward_fn).args:
+                reward_batch = torch.stack(
+                    [
+                        reward_fn(
+                            input_ids[i],
+                            test_cases=test_cases[i],
+                            response_idx=response_idx[i],
+                            **self.kwargs,
+                        )
+                        for i in range(bs)
+                    ],
+                    dim=0,
+                )
+            else:
+                reward_batch = torch.stack(
+                    [
+                        reward_fn(
+                            input_ids[i],
+                            response_idx=response_idx[i],
+                            **self.kwargs,
+                        )
+                        for i in range(bs)
+                    ],
+                    dim=0,
+                )
 
             rewards += reward_batch
         return rewards
diff --git a/applications/ColossalChat/coati/distributed/utils.py b/applications/ColossalChat/coati/distributed/utils.py
index a40ebbcfb..d46243114 100644
--- a/applications/ColossalChat/coati/distributed/utils.py
+++ b/applications/ColossalChat/coati/distributed/utils.py
@@ -71,31 +71,43 @@ def log_probs_from_logits(logits: torch.Tensor, labels: torch.Tensor) -> torch.T
     return per_label_logps.squeeze(-1)
 
 
-def calc_action_log_probs(
+def memory_efficient_logprob(
     logits: torch.Tensor,
-    sequences: torch.LongTensor,
-    num_actions: int,
-    shard_config,
+    inputs: torch.Tensor,
+    num_action: int,
+    chunk_size: int = 2048,
+    shard_config: Any = None,
     vocab_size: int = None,
 ) -> torch.Tensor:
-    """Calculate action log probs.
-
+    """
+    Calculate action log probs in a memory-efficient way by processing in chunks.
     Args:
         logits (torch.Tensor): Output tensor of Actor.forward.logits.
-        sequences (torch.LongTensor): Input sequences.
-        num_actions (int): Number of actions.
-        shard_config
-        vocab_size
-
-
+        inputs (torch.LongTensor): Input sequences.
+        num_action (int): Number of actions.
+        chunk_size (int, optional): Size of each chunk to process. Default is 2048.
+        shard_config: Shard configuration for distributed computation.
+        vocab_size (int, optional): Vocabulary size. Default is None.
     Returns:
         torch.Tensor: Action log probs.
     """
-    # labels: torch.Tensor,  # [B, S] or [B, S, Vocab_size]
-    # logits: torch.Tensor,  # [B, S, Vocab_size]
-    log_probs = dist_log_prob(sequences, logits, shard_config, vocab_size, logits.dtype)
-    log_probs = log_probs.squeeze(-1)
-    return log_probs[:, -num_actions:]
+    action_log_probs = torch.zeros((logits.size(0), num_action), device=logits.device, dtype=logits.dtype)
+    context_length = logits.size(1) - num_action
+    for i in range(action_log_probs.size(0)):
+        # loop over each sample in the micro-batch
+        for start in range(context_length, logits.size(1), chunk_size):
+            end = min(start + chunk_size, logits.size(1))
+            # calculate log probs in chunks to save memory
+            log_probs = dist_log_prob(
+                inputs[i : i + 1, start - 1 : end],
+                logits[i : i + 1, start - 1 : end],
+                shard_config,
+                vocab_size,
+                logits.dtype,
+            )  # [1, chunk_size, 1]
+            log_probs = log_probs.squeeze(-1)
+            action_log_probs[i, start - context_length : end - context_length] += log_probs[0]
+    return action_log_probs
 
 
 def masked_mean(tensor: torch.Tensor, mask: torch.Tensor, dim: int = 1) -> torch.Tensor:
diff --git a/applications/ColossalChat/rl_example.py b/applications/ColossalChat/rl_example.py
index 0b7bde6b0..9f6e895e4 100644
--- a/applications/ColossalChat/rl_example.py
+++ b/applications/ColossalChat/rl_example.py
@@ -6,6 +6,12 @@ import ray
 import torch
 from coati.distributed.launch import launch_distributed
 
+DEFAUT_SYSTEM_PROMPT = {
+    "think_answer_tags": "You are a helpful assistant. The assistant first thinks about the reasoning process in the mind and then provides the user with the answer. The reasoning process and answer are enclosed within <think> </think> and<answer> </answer> tags, respectively, i.e., <think> reasoning process here </think><answer> answer here </answer>. Now the user asks you to solve a math problem that involves reasoning. After thinking, when you finally reach a conclusion, clearly output the final answer without explanation within the <answer> </answer> tags, i.e., <answer> 123 </answer>.\n\n",
+    "boxed": "Please reason step by step, and put your final answer within \\boxed{}.",
+    "code": "You are a helpful assistant.",
+}
+
 if __name__ == "__main__":
     parser = argparse.ArgumentParser()
     parser.add_argument("-m", "--model", type=str, default="Qwen/Qwen2.5-7B")
@@ -101,7 +107,7 @@ if __name__ == "__main__":
         "--reward-type",
         type=str,
         default="think_answer_tags",
-        choices=["think_answer_tags", "boxed"],
+        choices=["think_answer_tags", "boxed", "code"],
         help="Reward type for GRPO.",
     )
     parser.add_argument(
@@ -167,10 +173,29 @@ if __name__ == "__main__":
 
     if args.master_address is None:
         # Default settings: Using single machine
-        ray.init(address="local", namespace="ray-example")
+        ray.init(
+            address="local",
+            namespace="ray-example",
+            runtime_env={
+                "env_vars": {
+                    # "RAY_DEBUG_POST_MORTEM": "1"  # enable post-mortem debugging with ray
+                    "TOKENIZERS_PARALLELISM": "false"
+                },
+            },
+        )
     else:
         # For ray distributed multi-machine training, Please change _node_ip_address to your IP address of your master node
-        ray.init(_node_ip_address=args.master_address, namespace="ray-example", _temp_dir=args.ray_dir)
+        ray.init(
+            _node_ip_address=args.master_address,
+            namespace="ray-example",
+            _temp_dir=args.ray_dir,
+            runtime_env={
+                "env_vars": {
+                    # "RAY_DEBUG_POST_MORTEM": "1"  # enable post-mortem debugging with ray
+                    "TOKENIZERS_PARALLELISM": "false"
+                },
+            },
+        )
 
     if args.top_k is None:
         if args.backend == "transformers":
@@ -178,6 +203,8 @@ if __name__ == "__main__":
         elif args.backend == "vllm":
             args.top_k = -1
 
+    os.environ["TOKENIZERS_PARALLELISM"] = "false"  # Disable tokenizers parallelism to avoid deadlock
+
     inference_model_config = dict(path=args.model)
     train_model_config = dict(
         path=args.model, use_flash_attention_2=False, use_cache=False, attn_implementation="eager"
@@ -276,6 +303,10 @@ if __name__ == "__main__":
     else:
         raise ValueError(f"Unsupported algorithm: {args.algo}")
 
+    if args.system_prompt is None:
+        # Default system prompt
+        args.system_prompt = DEFAUT_SYSTEM_PROMPT[args.reward_type]
+
     launch_distributed(
         num_producers=args.num_inferencer,
         num_proc_per_producer=inference_model_config.get("tensor_parallel_size", args.producer_tensor_parallel_size),
@@ -290,7 +321,6 @@ if __name__ == "__main__":
             "max_length": args.max_prompt_tokens,
             "system_prompt": args.system_prompt,
         },
-        dataloaders_config={},
         inference_model_config=inference_model_config,
         generate_config=generate_config,
         num_generations=args.num_generations,
diff --git a/colossalai/shardformer/policies/qwen2.py b/colossalai/shardformer/policies/qwen2.py
index 823527df6..d2798a23e 100644
--- a/colossalai/shardformer/policies/qwen2.py
+++ b/colossalai/shardformer/policies/qwen2.py
@@ -302,6 +302,17 @@ class Qwen2Policy(Policy):
         )
 
         if self.shard_config.enable_flash_attention or self.shard_config.enable_sequence_parallelism:
+            if not self.shard_config.enable_tensor_parallelism:
+                decoder_attribute_replacement = {
+                    "self_attn.hidden_size": self.model.config.hidden_size,
+                    "self_attn.num_heads": self.model.config.num_attention_heads,
+                }
+                if getattr(self.model.config, "num_key_value_heads", False):
+                    decoder_attribute_replacement["self_attn.num_key_value_heads"] = (
+                        self.model.config.num_key_value_heads
+                    )
+                policy[Qwen2DecoderLayer] = ModulePolicyDescription(attribute_replacement=decoder_attribute_replacement)
+
             self.append_or_create_method_replacement(
                 description={
                     "forward": get_qwen2_flash_attention_npu_forward(self.shard_config, sp_mode, sp_size, sp_group),