diff --git a/ge/graph/load/new_model_manager/davinci_model.cc b/ge/graph/load/new_model_manager/davinci_model.cc
index f2bf0aea..93f4624e 100755
--- a/ge/graph/load/new_model_manager/davinci_model.cc
+++ b/ge/graph/load/new_model_manager/davinci_model.cc
@@ -139,6 +139,7 @@ DavinciModel::DavinciModel(int32_t priority, const std::shared_ptr<ModelListener
       is_l1_fusion_enable_(false),
       is_first_execute_(true) {
   op_list_.clear();
+  skt_info_ = {0, 0, 0, 0, nullptr, nullptr, {}, {}, {}, {}, {}, RT_KERNEL_DEFAULT, -1, 0, nullptr};
 }
 
 DavinciModel::~DavinciModel() {
@@ -261,6 +262,7 @@ Status DavinciModel::Assign(const GeModelPtr &ge_model) {
 /// @return: void
 ///
 void DavinciModel::Shrink() {
+  skt_info_ = {0, 0, 0, 0, nullptr, nullptr, {}, {}, {}, {}, {}, RT_KERNEL_DEFAULT, -1, 0, nullptr};
   ge_model_.reset();  // delete object.
 }
 
diff --git a/ge/graph/load/new_model_manager/davinci_model.h b/ge/graph/load/new_model_manager/davinci_model.h
index be8efd90..480db4f8 100755
--- a/ge/graph/load/new_model_manager/davinci_model.h
+++ b/ge/graph/load/new_model_manager/davinci_model.h
@@ -76,6 +76,25 @@ struct timeInfo {
   int64_t dumpEndTime;
 };
 
+// For super kernel
+struct SuperKernelTaskInfo {
+  uint32_t last_block_dim;
+  uint32_t last_args_size;
+  uint32_t last_task_id;
+  uint32_t last_stream_id;
+  void *last_stream;
+  void *last_sm_desc;
+  std::vector<void *> kernel_list;
+  std::vector<void *> arg_list;
+  std::vector<uint32_t> dump_flag_list;
+  std::vector<OpDescPtr> op_desc_list;
+  std::vector<uintptr_t> dump_args_list;
+  uint32_t last_dump_flag;
+  int64_t last_group_key;
+  uintptr_t last_dump_args;
+  OpDescPtr last_op;
+};
+
 struct TaskMemInfo {
   int64_t input_size{0};
   int64_t output_size{0};
@@ -261,6 +280,9 @@ class DavinciModel {
   // get updated task info list
   std::vector<TaskInfoPtr> GetTaskList() { return task_list_; }
 
+  // Modified from KernelTaskInfo.
+  SuperKernelTaskInfo &GetSuperKernelTaskInfo() { return skt_info_; }
+
   ///
   /// @ingroup ge
   /// @brief get model input and output format
@@ -481,7 +503,7 @@ class DavinciModel {
     void *cur_args = static_cast<char *>(args_) + offset;
     return cur_args;
   }
-  void SetTotalIOAddrs(vector<void *> &io_addrs) {
+  void SetTotalIOAddrs(const vector<void *> &io_addrs) {
     total_io_addrs_.insert(total_io_addrs_.end(), io_addrs.begin(), io_addrs.end());
   }
   void SetHybridArgsSize(uint32_t args_size) { total_hybrid_args_size_ += args_size; }
@@ -996,6 +1018,9 @@ class DavinciModel {
 
   std::multimap<uint32_t, uint32_t> op_id_map_;
   std::vector<ProfileInfo> profile_list_;
+
+  // For super kernel.
+  SuperKernelTaskInfo skt_info_;
 };
 }  // namespace ge
 #endif  // GE_GRAPH_LOAD_NEW_MODEL_MANAGER_DAVINCI_MODEL_H_
diff --git a/ge/graph/load/new_model_manager/task_info/kernel_task_info.cc b/ge/graph/load/new_model_manager/task_info/kernel_task_info.cc
index ce31ef30..9c9175f9 100755
--- a/ge/graph/load/new_model_manager/task_info/kernel_task_info.cc
+++ b/ge/graph/load/new_model_manager/task_info/kernel_task_info.cc
@@ -53,9 +53,6 @@ const int kArgsAttrHandle = 4;
 }  // namespace
 
 namespace ge {
-KernelTaskInfo::SuperKernelTaskInfo KernelTaskInfo::skt_info_ = {
-    0, 0, 0, 0, nullptr, nullptr, {}, {}, {}, {}, {}, RT_KERNEL_DEFAULT, kInvalidGroupKey, 0, nullptr};
-
 Status KernelTaskInfo::Init(const domi::TaskDef &task_def, DavinciModel *davinci_model) {
   GE_CHECK_NOTNULL(davinci_model);
   davinci_model_ = davinci_model;
@@ -148,9 +145,10 @@ Status KernelTaskInfo::SaveSKTDumpInfo() {
     return SUCCESS;
   }
   // all op in super kernel share one taskid and streamid
-  for (size_t i = 0; i < skt_info_.op_desc_list.size(); i++) {
-    davinci_model_->SaveDumpTask(skt_info_.last_task_id, skt_info_.last_stream_id, skt_info_.op_desc_list[i],
-                                 skt_info_.dump_args_list[i]);
+  const SuperKernelTaskInfo &skt_info = davinci_model_->GetSuperKernelTaskInfo();
+  for (size_t i = 0; i < skt_info.op_desc_list.size(); i++) {
+    davinci_model_->SaveDumpTask(skt_info.last_task_id, skt_info.last_stream_id, skt_info.op_desc_list[i],
+                                 skt_info.dump_args_list[i]);
   }
   return SUCCESS;
 }
@@ -164,9 +162,10 @@ void KernelTaskInfo::UpdateSKTTaskId() {
       GELOGE(RT_FAILED, "Call rt api failed, ret: 0x%X", rt_ret);
       return;
     }
-    skt_info_.last_task_id = task_id;
-    skt_info_.last_stream_id = stream_id;
-    skt_id_ = skt_info_.last_task_id;
+    SuperKernelTaskInfo &skt_info = davinci_model_->GetSuperKernelTaskInfo();
+    skt_info.last_task_id = task_id;
+    skt_info.last_stream_id = stream_id;
+    skt_id_ = skt_info.last_task_id;
 
     GELOGI("UpdateTaskId:UpdateSKTTaskId [%u],stream id [%u]", task_id, stream_id);
   }
@@ -191,23 +190,25 @@ Status KernelTaskInfo::SKTFinalize() {
   UpdateSKTTaskId();
   GE_CHK_STATUS_RET(SaveSKTDumpInfo(), "skt save dump info failed");
   GELOGI("SuperKernel Distribute [skt_id:%u]", skt_id_);
-  skt_info_.kernel_list.clear();
-  skt_info_.arg_list.clear();
-  skt_info_.dump_flag_list.clear();
-  skt_info_.op_desc_list.clear();
-  skt_info_.dump_args_list.clear();
-  skt_info_.last_stream = nullptr;
-  skt_info_.last_block_dim = 0;
-  skt_info_.last_sm_desc = sm_desc_;
-  skt_info_.last_group_key = kInvalidGroupKey;
-  skt_info_.last_dump_flag = RT_KERNEL_DEFAULT;
-  skt_info_.last_dump_args = 0;
-  skt_info_.last_op = nullptr;
+  SuperKernelTaskInfo &skt_info = davinci_model_->GetSuperKernelTaskInfo();
+  skt_info.kernel_list.clear();
+  skt_info.arg_list.clear();
+  skt_info.dump_flag_list.clear();
+  skt_info.op_desc_list.clear();
+  skt_info.dump_args_list.clear();
+  skt_info.last_stream = nullptr;
+  skt_info.last_block_dim = 0;
+  skt_info.last_sm_desc = sm_desc_;
+  skt_info.last_group_key = kInvalidGroupKey;
+  skt_info.last_dump_flag = RT_KERNEL_DEFAULT;
+  skt_info.last_dump_args = 0;
+  skt_info.last_op = nullptr;
   return SUCCESS;
 }
 
 uint32_t KernelTaskInfo::GetDumpFlag() {
-  for (auto flag : skt_info_.dump_flag_list) {
+  const SuperKernelTaskInfo &skt_info = davinci_model_->GetSuperKernelTaskInfo();
+  for (auto flag : skt_info.dump_flag_list) {
     if (flag == RT_KERNEL_DUMPFLAG) {
       return RT_KERNEL_DUMPFLAG;
     }
@@ -216,19 +217,20 @@ uint32_t KernelTaskInfo::GetDumpFlag() {
 }
 
 Status KernelTaskInfo::SuperKernelLaunch() {
-  if (skt_info_.kernel_list.empty()) {
+  SuperKernelTaskInfo &skt_info = davinci_model_->GetSuperKernelTaskInfo();
+  if (skt_info.kernel_list.empty()) {
     GELOGI("SuperKernelLaunch: Skt_kernel_list has no task, just return");
     return SUCCESS;
   }
   rtError_t rt_ret;
-  auto &skt_kernel_list = skt_info_.kernel_list;
-  auto &skt_arg_list = skt_info_.arg_list;
+  auto &skt_kernel_list = skt_info.kernel_list;
+  auto &skt_arg_list = skt_info.arg_list;
   GELOGI("SuperKernelLaunch: Skt_kernel_list size[%zu] skt_arg_list[%zu]", skt_kernel_list.size(), skt_arg_list.size());
   if (skt_kernel_list.size() == kSKTSingleSize && skt_arg_list.size() == kSKTSingleSize) {
-    rt_ret = rtKernelLaunchWithFlag(skt_info_.kernel_list[0], static_cast<uint32_t>(skt_info_.last_block_dim),
-                                    skt_info_.arg_list[0], skt_info_.last_args_size,
-                                    static_cast<rtSmDesc_t *>(skt_info_.last_sm_desc), skt_info_.last_stream,
-                                    skt_info_.last_dump_flag);
+    rt_ret = rtKernelLaunchWithFlag(skt_info.kernel_list[0], static_cast<uint32_t>(skt_info.last_block_dim),
+                                    skt_info.arg_list[0], skt_info.last_args_size,
+                                    static_cast<rtSmDesc_t *>(skt_info.last_sm_desc), skt_info.last_stream,
+                                    skt_info.last_dump_flag);
     if (rt_ret != RT_ERROR_NONE) {
       GELOGE(RT_FAILED, "SuperKernelLaunch: Call rt api failed, ret: 0x%X", rt_ret);
       return RT_ERROR_TO_GE_STATUS(rt_ret);
@@ -247,14 +249,14 @@ Status KernelTaskInfo::SuperKernelLaunch() {
   }
   // Call the fuse API
   std::unique_ptr<skt::SuperKernel> superKernel = nullptr;
-  ge_ret = factory->FuseKernels(skt_kernel_list, skt_arg_list, skt_info_.last_block_dim, superKernel);
+  ge_ret = factory->FuseKernels(skt_kernel_list, skt_arg_list, skt_info.last_block_dim, superKernel);
   if (ge_ret != SUCCESS) {
     GELOGE(ge_ret, "SuperKernelLaunch: fuse call failed");
     return ge_ret;
   }
   // Launch a super kernel
   skt_dump_flag_ = GetDumpFlag();
-  ge_ret = superKernel->Launch(skt_info_.last_stream, skt_dump_flag_);
+  ge_ret = superKernel->Launch(skt_info.last_stream, skt_dump_flag_);
   if (ge_ret != SUCCESS) {
     GELOGE(ge_ret, "SuperKernelLaunch: launch failed");
     return ge_ret;
@@ -269,23 +271,26 @@ Status KernelTaskInfo::SuperKernelLaunch() {
 }
 
 Status KernelTaskInfo::SaveSuperKernelInfo() {
-  skt_info_.kernel_list.push_back(stub_func_);
-  skt_info_.arg_list.push_back(args_);
-  skt_info_.last_stream = stream_;
-  skt_info_.last_block_dim = block_dim_;
-  skt_info_.last_args_size = args_size_;
-  skt_info_.last_sm_desc = sm_desc_;
-  skt_info_.last_dump_flag = dump_flag_;
-  skt_info_.dump_flag_list.push_back(dump_flag_);
-  skt_info_.op_desc_list.push_back(op_desc_);
-  skt_info_.dump_args_list.push_back(reinterpret_cast<uintptr_t>(skt_dump_args_));
-  skt_info_.last_group_key = group_key_;
-  skt_info_.last_dump_args = reinterpret_cast<uintptr_t>(skt_dump_args_);
-  skt_info_.last_op = op_desc_;
+  SuperKernelTaskInfo &skt_info = davinci_model_->GetSuperKernelTaskInfo();
+  skt_info.kernel_list.push_back(stub_func_);
+  skt_info.arg_list.push_back(args_);
+  skt_info.last_stream = stream_;
+  skt_info.last_block_dim = block_dim_;
+  skt_info.last_args_size = args_size_;
+  skt_info.last_sm_desc = sm_desc_;
+  skt_info.last_dump_flag = dump_flag_;
+  skt_info.dump_flag_list.push_back(dump_flag_);
+  skt_info.op_desc_list.push_back(op_desc_);
+  skt_info.dump_args_list.push_back(reinterpret_cast<uintptr_t>(skt_dump_args_));
+  skt_info.last_group_key = group_key_;
+  skt_info.last_dump_args = reinterpret_cast<uintptr_t>(skt_dump_args_);
+  skt_info.last_op = op_desc_;
   // last node in a stream, just launch
   if (IsMarkedLastNode()) {
     return SuperKernelLaunch();
   }
+
+  GELOGI("Save Current task [block_dim:%u, size:%zu].", block_dim_, skt_info.kernel_list.size());
   return SUCCESS;
 }
 
@@ -322,8 +327,9 @@ bool KernelTaskInfo::IsMarkedFirstNode() {
 // then may be saved to skt task list; else
 // call skt launch those saved tasks before
 bool KernelTaskInfo::FirstCallSKTLaunchCheck() {
-  return ((block_dim_ != skt_info_.last_block_dim) || (stream_ != skt_info_.last_stream) ||
-          (has_group_key_ && (group_key_ != skt_info_.last_group_key)));
+  const SuperKernelTaskInfo &skt_info = davinci_model_->GetSuperKernelTaskInfo();
+  return ((block_dim_ != skt_info.last_block_dim) || (stream_ != skt_info.last_stream) ||
+          (has_group_key_ && (group_key_ != skt_info.last_group_key)));
 }
 
 // current task has group_id or has n ATTR_N_BATCH_SPLIT then save it to skt task list; else
@@ -362,7 +368,6 @@ Status KernelTaskInfo::SuperKernelDistribute() {
       GELOGE(ret, "Call SuperKernelLaunch failed!");
       return ret;
     }
-    GELOGI("Save Current task [block_dim:%u, size:%zu].", block_dim_, skt_info_.kernel_list.size());
   }
   return SUCCESS;
 }
@@ -391,10 +396,11 @@ Status KernelTaskInfo::Distribute() {
     call_save_dump_ = true;
   } else {
     /* default: not skt launch */
+    const SuperKernelTaskInfo &skt_info = davinci_model_->GetSuperKernelTaskInfo();
     GELOGD(
         "KernelTaskInfo Distribute Start, sktenable:%d taskid:%u sktid:%u last_sktid:%u stubfunc_name:%s "
         "stubfunc:%p blockdim:%u stream:%p",
-        call_skt, task_id_, skt_id_, skt_info_.last_task_id, stub_func_name_.c_str(), stub_func_, block_dim_, stream_);
+        call_skt, task_id_, skt_id_, skt_info.last_task_id, stub_func_name_.c_str(), stub_func_, block_dim_, stream_);
     // l1 fusion enable and env flag open (kCloseSkt for skt debug)
     bool open_dump = false;
     auto all_dump_model = davinci_model_->GetDumpProperties().GetAllDumpModel();
@@ -422,6 +428,7 @@ Status KernelTaskInfo::Distribute() {
       "KernelTaskInfo Distribute Success. sktenable:%d taskid:%d sktid:%d stubfunc_name:%s stubfunc:%p "
       "blockdim:%d stream:%p",
       call_skt, task_id_, skt_id_, stub_func_name_.c_str(), stub_func_, block_dim_, stream_);
+  op_desc_.reset(); // Not hold OpDesc after distribute.
   return SUCCESS;
 }
 
@@ -789,7 +796,6 @@ Status KernelTaskInfo::InitCceTask(const domi::KernelDef &kernel_def) {
       GELOGE(FAILED, "flowtable is null.");
       return FAILED;
     }
-    flowtable_size_ = flowtable.size();
   }
 
   // get smDesc stored in model
@@ -854,14 +860,14 @@ Status KernelTaskInfo::InitAicpuTask(uint32_t op_index, const domi::KernelDef &k
   GELOGI("Do InitAicpuTask");
   so_name_ = kernel_def.so_name();
   kernel_name_ = kernel_def.kernel_name();
-  GELOGI("node[%s] test so name %s, kernel name %s", op_desc_->GetName().c_str(), so_name_.c_str(),
-         kernel_name_.c_str());
 
   OpDescPtr op_desc = davinci_model_->GetOpByIndex(op_index);
   if (op_desc == nullptr) {
     GELOGE(INTERNAL_ERROR, "index is out of range, index: %u", op_index);
     return INTERNAL_ERROR;
   }
+  GELOGI("node[%s] test so name %s, kernel name %s", op_desc->GetName().c_str(), so_name_.c_str(),
+         kernel_name_.c_str());
 
   if (kernel_type_ == ccKernelType::CUST_AI_CPU) {
     bool loaded = false;
@@ -885,8 +891,8 @@ Status KernelTaskInfo::InitAicpuTask(uint32_t op_index, const domi::KernelDef &k
     GELOGE(init_ret, "Init aicpu task ext info failed, ext_info size=%zu", ext_info.size());
     return init_ret;
   }
-  GELOGI("Node[%s] type[%s] kernel_ext_info size=%zu, aicpu_ext_info_addr_=%p", op_desc_->GetName().c_str(),
-         op_desc_->GetType().c_str(), ext_info.size(), aicpu_ext_info_addr_);
+  GELOGI("Node[%s] type[%s] kernel_ext_info size=%zu, aicpu_ext_info_addr_=%p", op_desc->GetName().c_str(),
+         op_desc->GetType().c_str(), ext_info.size(), aicpu_ext_info_addr_);
 
   aicpu_param_head->extInfoAddr = reinterpret_cast<uintptr_t>(aicpu_ext_info_addr_);
   aicpu_param_head->extInfoLength = static_cast<uintptr_t>(ext_info.size());
diff --git a/ge/graph/load/new_model_manager/task_info/kernel_task_info.h b/ge/graph/load/new_model_manager/task_info/kernel_task_info.h
index 7717edd3..048765f9 100644
--- a/ge/graph/load/new_model_manager/task_info/kernel_task_info.h
+++ b/ge/graph/load/new_model_manager/task_info/kernel_task_info.h
@@ -38,7 +38,6 @@ class KernelTaskInfo : public TaskInfo {
         flowtable_(nullptr),
         block_dim_(0),
         args_size_(0),
-        flowtable_size_(0),
         task_id_(0),
         stream_id_(0),
         so_name_(""),
@@ -148,7 +147,6 @@ class KernelTaskInfo : public TaskInfo {
   void *flowtable_;
   uint32_t block_dim_;
   uint32_t args_size_;
-  uint32_t flowtable_size_;
   uint32_t task_id_;
   uint32_t stream_id_;
   std::string so_name_;
@@ -156,7 +154,7 @@ class KernelTaskInfo : public TaskInfo {
   ccKernelType kernel_type_;
   uint32_t dump_flag_;
   void *dump_args_;
-  OpDescPtr op_desc_;
+  OpDescPtr op_desc_;   // Clear after distribute.
   DavinciModel *davinci_model_;
   uint32_t args_offset_ = 0;
   uint32_t hybrid_args_offset_ = 0;
@@ -186,25 +184,6 @@ class KernelTaskInfo : public TaskInfo {
     void *output_addrs = nullptr;
     void *attr_handle = nullptr;
   } custom_info_;
-
-  // For super kernel
-  static struct SuperKernelTaskInfo {
-    uint32_t last_block_dim;
-    uint32_t last_args_size;
-    uint32_t last_task_id;
-    uint32_t last_stream_id;
-    void *last_stream;
-    void *last_sm_desc;
-    std::vector<void *> kernel_list;
-    std::vector<void *> arg_list;
-    std::vector<uint32_t> dump_flag_list;
-    std::vector<OpDescPtr> op_desc_list;
-    std::vector<uintptr_t> dump_args_list;
-    uint32_t last_dump_flag;
-    int64_t last_group_key;
-    uintptr_t last_dump_args;
-    OpDescPtr last_op;
-  } skt_info_;
 };
 }  // namespace ge
 #endif  // GE_GRAPH_LOAD_NEW_MODEL_MANAGER_TASK_INFO_KERNEL_TASK_INFO_H_