diff --git a/source/api_cc/include/DeepPotJAX.h b/source/api_cc/include/DeepPotJAX.h
index 613d994fbc..606836de7e 100644
--- a/source/api_cc/include/DeepPotJAX.h
+++ b/source/api_cc/include/DeepPotJAX.h
@@ -18,7 +18,7 @@ class DeepPotJAX : public DeepPotBase {
    * @brief DP constructor without initialization.
    **/
   DeepPotJAX();
-  ~DeepPotJAX();
+  virtual ~DeepPotJAX();
   /**
    * @brief DP constructor with initialization.
    * @param[in] model The name of the frozen model file.
diff --git a/source/api_cc/src/DeepPotJAX.cc b/source/api_cc/src/DeepPotJAX.cc
index 8d4d0e61ed..c3deec2bcd 100644
--- a/source/api_cc/src/DeepPotJAX.cc
+++ b/source/api_cc/src/DeepPotJAX.cc
@@ -101,6 +101,8 @@ inline T get_scalar(TFE_Context* ctx,
   T result = *data;
   // deallocate
   TFE_DeleteOp(op);
+  TF_DeleteTensor(tensor);
+  TFE_DeleteTensorHandle(retval);
   return result;
 }
 
@@ -152,6 +154,8 @@ inline std::vector<std::string> get_vector_string(
 
   // deallocate
   TFE_DeleteOp(op);
+  TF_DeleteTensor(tensor);
+  TFE_DeleteTensorHandle(retval);
   return result;
 }
 
@@ -191,6 +195,8 @@ inline void tensor_to_vector(std::vector<T>& result,
   for (int i = 0; i < TF_TensorElementCount(tensor); i++) {
     result[i] = data[i];
   }
+  // Delete the tensor to free memory
+  TF_DeleteTensor(tensor);
 }
 
 deepmd::DeepPotJAX::DeepPotJAX() : inited(false) {}
@@ -262,6 +268,7 @@ void deepmd::DeepPotJAX::init(const std::string& model,
   ntypes = type_map_.size();
   sel = get_vector<int64_t>(ctx, "get_sel", func_vector, device, status);
   nnei = std::accumulate(sel.begin(), sel.end(), decltype(sel)::value_type(0));
+  inited = true;
 }
 
 deepmd::DeepPotJAX::~DeepPotJAX() {
@@ -302,7 +309,6 @@ void deepmd::DeepPotJAX::compute(std::vector<ENERGYTYPE>& ener,
   select_real_atoms_coord(coord, atype, aparam, nghost_real, fwd_map, bkw_map,
                           nall_real, nloc_real, dcoord, datype, aparam_, nghost,
                           ntypes, nframes, daparam, nall, false);
-  int nloc = nall_real - nghost_real;
 
   // cast coord, fparam, and aparam to double - I think it's useless to have a
   // float model interface
@@ -331,7 +337,7 @@ void deepmd::DeepPotJAX::compute(std::vector<ENERGYTYPE>& ener,
     nlist_data.shuffle_exclude_empty(fwd_map);
   }
   std::vector<int64_t> nlist_shape = {nframes, nloc_real, nnei};
-  std::vector<int64_t> nlist(nframes * nloc_real * nnei);
+  std::vector<int64_t> nlist(static_cast<size_t>(nframes) * nloc_real * nnei);
   // pass nlist_data.jlist to nlist
   for (int ii = 0; ii < nloc_real; ii++) {
     for (int jj = 0; jj < nnei; jj++) {
diff --git a/source/api_cc/tests/test_deeppot_jax.cc b/source/api_cc/tests/test_deeppot_jax.cc
index 361ba5d759..0514cf3017 100644
--- a/source/api_cc/tests/test_deeppot_jax.cc
+++ b/source/api_cc/tests/test_deeppot_jax.cc
@@ -89,9 +89,9 @@ class TestInferDeepPotAJAX : public ::testing::Test {
         expected_tot_v[dd] += expected_v[ii * 9 + dd];
       }
     }
-  };
+  }
 
-  void TearDown() override {};
+  void TearDown() override {}
 };
 
 TYPED_TEST_SUITE(TestInferDeepPotAJAX, ValueTypes);