diff --git a/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/debugger/precision_debugger.py b/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/debugger/precision_debugger.py
index f71a9d4c545fed7138c88eb87e91bf19d83609b1..2d1613c47b12063b32dd9c46edaaf794b17c2053 100644
--- a/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/debugger/precision_debugger.py
+++ b/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/debugger/precision_debugger.py
@@ -1,8 +1,9 @@
 import os
+from concurrent.futures import ThreadPoolExecutor
 import torch
 from ..common.utils import Const, check_switch_valid, generate_compare_script, check_is_npu, print_error_log, \
     CompareException, print_warn_log
-from ..dump.dump import DumpUtil, acc_cmp_dump, write_to_disk, get_pkl_file_path, reset_module_count, GLOBAL_THREAD_POOL
+from ..dump.dump import DumpUtil, acc_cmp_dump, write_to_disk, get_pkl_file_path, reset_module_count
 from ..dump.utils import set_dump_path, set_dump_switch_print_info, generate_dump_path_str, \
         set_dump_switch_config, set_backward_input
 from ..overflow_check.utils import OverFlowUtil
@@ -108,6 +109,7 @@ class PrecisionDebugger:
                     register_hook_core(instance.hook_func, instance.model)
                     instance.first_start = False
                 DumpUtil.dump_switch = "ON"
+                DumpUtil.dump_thread_pool = ThreadPoolExecutor()
                 OverFlowUtil.overflow_check_switch = "ON"
                 dump_path_str = generate_dump_path_str()
                 set_dump_switch_print_info("ON", DumpUtil.dump_switch_mode, dump_path_str)
@@ -130,8 +132,8 @@ class PrecisionDebugger:
             dump_path_str = generate_dump_path_str()
             set_dump_switch_print_info("OFF", DumpUtil.dump_switch_mode, dump_path_str)
             write_to_disk()
-            if DumpUtil.is_single_rank:
-                GLOBAL_THREAD_POOL.shutdown(wait=True)
+            if DumpUtil.is_single_rank and DumpUtil.dump_thread_pool:
+                DumpUtil.dump_thread_pool.shutdown(wait=True)
             if check_is_npu() and DumpUtil.dump_switch_mode in [Const.ALL, Const.API_STACK, Const.LIST, Const.RANGE, Const.API_LIST]:
                 generate_compare_script(DumpUtil.dump_data_dir, get_pkl_file_path(), DumpUtil.dump_switch_mode)
 
diff --git a/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/dump/dump.py b/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/dump/dump.py
index a6b769ff2a41955aa6363f08d086a091335bf5f1..ea61be86364504885a3db240e60ddd60d360564b 100644
--- a/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/dump/dump.py
+++ b/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/dump/dump.py
@@ -47,7 +47,6 @@ pkl_name = ""
 rank = os.getpid() + 100000
 multi_output_apis = ["_sort_", "npu_flash_attention"]
 module_count = {}
-GLOBAL_THREAD_POOL = ThreadPoolExecutor()
 
 
 class APIList(list):
@@ -186,12 +185,12 @@ def dump_data(prefix, data_info):
 
 
 def thread_dump_data(prefix, data_info):
-    GLOBAL_THREAD_POOL.submit(dump_data, prefix, data_info)
+    DumpUtil.dump_thread_pool.submit(dump_data, prefix, data_info)
 
 
 def dump_data_by_rank_count(dump_step, prefix, data_info):
     print_info_log(f"ptdbg is analyzing rank{rank} api: {prefix}" + " " * 10, end='\r')
-    if DumpUtil.is_single_rank:
+    if DumpUtil.is_single_rank and DumpUtil.dump_thread_pool:
         thread_dump_data(prefix, data_info)
     else:
         dump_data(prefix, data_info)
diff --git a/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/dump/utils.py b/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/dump/utils.py
index bb0ae82c4110d568e31cd21a261f5875548c8672..bea18501aefaba4916cba7ad3b7e455d0c29033c 100644
--- a/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/dump/utils.py
+++ b/debug/accuracy_tools/ptdbg_ascend/src/python/ptdbg_ascend/dump/utils.py
@@ -87,6 +87,7 @@ class DumpUtil(object):
     need_replicate = False
     summary_mode = "all"
     is_single_rank = None
+    dump_thread_pool = None
 
 
     @staticmethod