Add varbase init name (#37947)

paddle/fluid/pybind/imperative.cc

@@ -252,12 +252,16 @@ static void InitVarBaseFromNumpyWithArgDefault(imperative::VarBase *self,
   InitVarBaseAndTensor(self, array, place, "");
 }
 
-static void InitVarBaseFromTensorWithArgDefault(
-    imperative::VarBase *self, const framework::Tensor &tensor) {
+static void InitVarBaseFromTensorWithArgDefault(imperative::VarBase *self,
+                                                const framework::Tensor &tensor,
+                                                const std::string &name) {
   VLOG(4) << "Init VarBase";
   auto place = imperative::GetCurrentTracer()->ExpectedPlace();
-  new (self) imperative::VarBase(
-      imperative::GetCurrentTracer()->GenerateUniqueName("generated_tensor"));
+  auto name_ = name == ""
+                   ? imperative::GetCurrentTracer()->GenerateUniqueName(
+                         "generated_tensor")
+                   : name;
+  new (self) imperative::VarBase(name_);
   self->SetPersistable(false);
   self->SetType(framework::proto::VarType::LOD_TENSOR);
   self->SetDataType(tensor.type());
@@ -275,10 +279,14 @@ static void InitVarBaseFromTensorWithArgDefault(
 template <typename P>
 static void InitVarBaseFromTensorWithArg(imperative::VarBase *self,
                                          const framework::Tensor &tensor,
-                                         const P &place) {
+                                         const P &place,
+                                         const std::string &name) {
   VLOG(4) << "Init VarBase";
-  new (self) imperative::VarBase(
-      imperative::GetCurrentTracer()->GenerateUniqueName("generated_tensor"));
+  auto name_ = name == ""
+                   ? imperative::GetCurrentTracer()->GenerateUniqueName(
+                         "generated_tensor")
+                   : name;
+  new (self) imperative::VarBase(name_);
   self->SetPersistable(false);
   self->SetType(framework::proto::VarType::LOD_TENSOR);
   self->SetDataType(tensor.type());
@@ -917,17 +925,18 @@ void BindImperative(py::module *m_ptr) {
            py::arg("zero_copy") = false, py::arg("name") = "",
            py::arg("stop_gradient") = -1)
       .def("__init__", &InitVarBaseFromNumpyWithArgDefault, py::arg("value"))
-      .def("__init__", &InitVarBaseFromTensorWithArgDefault, py::arg("tensor"))
+      .def("__init__", &InitVarBaseFromTensorWithArgDefault, py::arg("tensor"),
+           py::arg("name") = "")
       .def("__init__", &InitVarBaseFromTensorWithArg<platform::CPUPlace>,
-           py::arg("tensor"), py::arg("place"))
+           py::arg("tensor"), py::arg("place"), py::arg("name") = "")
       .def("__init__", &InitVarBaseFromTensorWithArg<platform::XPUPlace>,
-           py::arg("tensor"), py::arg("place"))
+           py::arg("tensor"), py::arg("place"), py::arg("name") = "")
       .def("__init__", &InitVarBaseFromTensorWithArg<platform::CUDAPlace>,
-           py::arg("tensor"), py::arg("place"))
+           py::arg("tensor"), py::arg("place"), py::arg("name") = "")
       .def("__init__", &InitVarBaseFromTensorWithArg<platform::CUDAPinnedPlace>,
-           py::arg("tensor"), py::arg("place"))
+           py::arg("tensor"), py::arg("place"), py::arg("name") = "")
       .def("__init__", &InitVarBaseFromTensorWithArg<platform::NPUPlace>,
-           py::arg("tensor"), py::arg("place"))
+           py::arg("tensor"), py::arg("place"), py::arg("name") = "")
       .def("__init__", &InitVarBaseFromNumpyWithKwargs)
       .def(
           "__setitem_varbase__",