diff --git "a/debug/accuracy_tools/api_accuracy_checker/Ascend\346\250\241\345\236\213\347\262\276\345\272\246\351\242\204\346\243\200\345\267\245\345\205\267\344\275\277\347\224\250\346\226\271\346\263\225.md" "b/debug/accuracy_tools/api_accuracy_checker/Ascend\346\250\241\345\236\213\347\262\276\345\272\246\351\242\204\346\243\200\345\267\245\345\205\267\344\275\277\347\224\250\346\226\271\346\263\225.md"
new file mode 100644
index 0000000000000000000000000000000000000000..c2c8f456c23f0832f9e3c484fb6a62b2b461963e
--- /dev/null
+++ "b/debug/accuracy_tools/api_accuracy_checker/Ascend\346\250\241\345\236\213\347\262\276\345\272\246\351\242\204\346\243\200\345\267\245\345\205\267\344\275\277\347\224\250\346\226\271\346\263\225.md"
@@ -0,0 +1,30 @@
+# Ascend模型精度预检工具
+
+## 使用方式
+
+1. 安装遇见工具
+
+   将att仓代码下载到本地，并配置环境变量。假设att仓本地路径为 {att_root}，环境变量应配置为
+
+   ```
+   export PYTHONPATH=$PYTHONPATH:{att_root}/debug/accuracy_tools/
+   ```
+
+2. 使用工具dump模块抓取网络所有API信息
+
+   ```
+   from api_accuracy_checker.dump import set_dump_switch
+   set_dump_switch("ON")
+   ```
+
+​	dump信息默认会存盘到./api_info/路径下，后缀的数字代表rank id
+
+3. 将上述信息输入给run_ut模块运行精度检测并比对
+
+   ```
+   cd run_ut
+   python run_ut.py --forward ./api_info/forward_info_0.json --backward ./api_info/backward_info_0.json
+   ```
+
+   forward和backward两个命令行参数根据实际情况配置。比对结果存盘位置会打屏显示，默认是'./'，可以在运行run_ut.py时通过 --out_path命令行参数配置。
+
diff --git a/debug/accuracy_tools/api_accuracy_checker/common/utils.py b/debug/accuracy_tools/api_accuracy_checker/common/utils.py
index dac54a79fc8bca5caa2bc783852992104a1d7a0e..e62c9616ca710aa4eabc8e3e7cbb099444054b3f 100644
--- a/debug/accuracy_tools/api_accuracy_checker/common/utils.py
+++ b/debug/accuracy_tools/api_accuracy_checker/common/utils.py
@@ -510,7 +510,7 @@ LINUX_FILE_NAME_LENGTH_LIMIT = 200
 
 def check_path_length_valid(path):
     path = os.path.realpath(path)
-    return len(os.path.basename(path) <= LINUX_FILE_NAME_LENGTH_LIMIT)
+    return len(os.path.basename(path)) <= LINUX_FILE_NAME_LENGTH_LIMIT
 
 
 def check_path_pattern_valid(path):
diff --git a/debug/accuracy_tools/api_accuracy_checker/compare/algorithm.py b/debug/accuracy_tools/api_accuracy_checker/compare/algorithm.py
index 9ccdb05baa877c42488ca1ae4a5aa2bb0f66dbbc..88df23cacacd5b17b5ed5f4e6ccd23183d9ff80f 100644
--- a/debug/accuracy_tools/api_accuracy_checker/compare/algorithm.py
+++ b/debug/accuracy_tools/api_accuracy_checker/compare/algorithm.py
@@ -39,6 +39,11 @@ def get_max_rel_err(n_value, b_value):
     return 1, False 
 
 
+def cosine_standard(compare_result):
+    bool_result = np.array(compare_result) > 0.99
+    return np.all(bool_result), bool_result
+
+
 def cosine_sim(cpu_output, npu_output):
     n_value = npu_output.cpu().detach().numpy().reshape(-1)
     b_value = cpu_output.detach().numpy().reshape(-1)
diff --git a/debug/accuracy_tools/api_accuracy_checker/compare/compare.py b/debug/accuracy_tools/api_accuracy_checker/compare/compare.py
index eb1b2586e9a8625da4eac6a7995bca117a8e9b6c..ae869e208e25a96cd363b71762f9d1399a8db8d2 100644
--- a/debug/accuracy_tools/api_accuracy_checker/compare/compare.py
+++ b/debug/accuracy_tools/api_accuracy_checker/compare/compare.py
@@ -1,6 +1,6 @@
 # 进行比对及结果展示
 import os 
-from prettytable import Prettytable 
+from prettytable import PrettyTable
 from .algorithm import compare_core, cosine_sim, cosine_standard 
 from ..common.utils import get_json_contents, print_error_log, print_info_log, write_csv
 from .compare_utils import CompareConst 
@@ -32,7 +32,7 @@ class Comparator:
             "forward_and_backward_not_pass": self.test_result_cnt['forward_and_backward_fail_num'],
             "pass": self.test_result_cnt['success_num']
         }    
-        tb = Prettytable()
+        tb = PrettyTable()
         tb.add_column("Category", list(res_dict.keys()))
         tb.add_column("statistics",list(res_dict.values()))
         info_tb = str(tb)
diff --git a/debug/accuracy_tools/api_accuracy_checker/dump/api_info.py b/debug/accuracy_tools/api_accuracy_checker/dump/api_info.py
index e50e95b46eb0f663c510394a8b42e4592d7a8c3e..ea27248cf35d53c37623375addb93e89a676ffa4 100644
--- a/debug/accuracy_tools/api_accuracy_checker/dump/api_info.py
+++ b/debug/accuracy_tools/api_accuracy_checker/dump/api_info.py
@@ -1,11 +1,13 @@
 # 定义API INFO，保存基本信息，用于后续结构体的落盘，注意考虑random场景及真实数据场景
 import inspect
 import torch
+import torch_npu
 from .utils import DumpUtil, DumpConst, write_npy
 from ..common.utils import print_error_log
 
 class APIInfo:
     def __init__(self, api_name):
+        self.rank = torch_npu.npu.current_device()
         self.api_name = api_name
         self.save_real_data = DumpUtil.save_real_data
 
@@ -105,9 +107,10 @@ class ForwardAPIInfo(APIInfo):
     def analyze_api_call_stack(self):
         stack_str = []
         for (_, path, line, func, code, _) in inspect.stack()[3:]:
+            if not code: continue
             stack_line = " ".join([
                 "File", ", ".join([path, " ".join(["line", str(line)]), " ".join(["in", func]),
-                                " ".join(["\n", code[0].strip() if code else code])])])
+                                " ".join(["\n", code[0].strip()])])])
             stack_str.append(stack_line)
         self.stack_info_struct = {self.api_name: stack_str}
     
diff --git a/debug/accuracy_tools/api_accuracy_checker/dump/dump.py b/debug/accuracy_tools/api_accuracy_checker/dump/dump.py
index 6ffc77578f1ce03d434361d671b317cfae3f4e95..ade72d3ebae88b5cf22e2f79577a21a5f4312ffb 100644
--- a/debug/accuracy_tools/api_accuracy_checker/dump/dump.py
+++ b/debug/accuracy_tools/api_accuracy_checker/dump/dump.py
@@ -24,7 +24,7 @@ import torch
 import threading
 
 
-from .utils import ForwardAPIInfo, BackwardAPIInfo
+from .api_info import ForwardAPIInfo, BackwardAPIInfo
 from .info_dump import write_api_info_json 
 from .utils import DumpConst, DumpUtil
 from ..common.utils import print_warn_log, print_info_log, print_error_log
@@ -35,7 +35,7 @@ def pretest_info_dump(name, out_feat, module, phase):
     if phase == DumpConst.forward:
         api_info = ForwardAPIInfo(name, module.input_args, module.input_kwargs)
     elif phase == DumpConst.backward:
-        api_info = BackwardApiInfo(name, out_feat)
+        api_info = BackwardAPIInfo(name, out_feat)
     else:
         msg = "Unexpected training phase {}.".format(phase)
         print_error_log(msg)
diff --git a/debug/accuracy_tools/api_accuracy_checker/dump/info_dump.py b/debug/accuracy_tools/api_accuracy_checker/dump/info_dump.py
index 0f76069a7f9e81cd6ddf08a467c5cdf2f7a55f5c..dc60fd2cb7dbfbf735c843371362fd2721e2a3f1 100644
--- a/debug/accuracy_tools/api_accuracy_checker/dump/info_dump.py
+++ b/debug/accuracy_tools/api_accuracy_checker/dump/info_dump.py
@@ -12,15 +12,15 @@ lock = threading.Lock()
 
 def write_api_info_json(api_info):
     dump_path = DumpUtil.dump_path
-    initialize_output_json()
+    rank = api_info.rank
     if isinstance(api_info, ForwardAPIInfo):
-        file_path = os.path.join(dump_path, 'forward_info.json')
-        stack_file_path = os.path.join(dump_path, 'stack_info.json')
+        file_path = os.path.join(dump_path, f'forward_info_{rank}.json')
+        stack_file_path = os.path.join(dump_path, f'stack_info_{rank}.json')
         write_json(file_path, api_info.api_info_struct)
         write_json(stack_file_path, api_info.stack_info_struct, indent=4)
 
     elif isinstance(api_info, BackwardAPIInfo):
-        file_path = os.path.join(dump_path, 'backward_info.json')
+        file_path = os.path.join(dump_path, f'backward_info_{rank}.json')
         write_json(file_path, api_info.grad_info_struct)
     else:
         raise ValueError(f"Invalid api_info type {type(api_info)}")
diff --git a/debug/accuracy_tools/api_accuracy_checker/dump/utils.py b/debug/accuracy_tools/api_accuracy_checker/dump/utils.py
index 1aaf7a3d53a0c4da4ef6cf7b24cb84e843898355..f9c7eeaf27ccd15f2183edcd54dd1e0fc86c670f 100644
--- a/debug/accuracy_tools/api_accuracy_checker/dump/utils.py
+++ b/debug/accuracy_tools/api_accuracy_checker/dump/utils.py
@@ -6,11 +6,6 @@ import numpy as np
 from ..common.utils import print_error_log, CompareException, DumpException, Const, get_time, print_info_log, \
     check_mode_valid, get_api_name_from_matcher
 
-from ..common.version import __version__
-
-dump_count = 0
-range_begin_flag, range_end_flag = False, False
-
 class DumpConst:
     delimiter = '*'
     forward = 'forward'
@@ -33,7 +28,7 @@ def set_dump_switch(switch):
 
 class DumpUtil(object):
     save_real_data = False
-    dump_path = './random_data_jsons'
+    dump_path = './api_info'
     dump_switch = None
 
     @staticmethod