do not calc reduce_all in eager mode (#48199)

* do not calc reduce_all in eager mode

* refine python c cast list

* refine

* refine

* refine

* refine

* refine

* refine

* refine

* refine

* refine

paddle/fluid/pybind/eager_method.cc

@@ -1462,7 +1462,7 @@ static PyObject* tensor_method_set_string_list(TensorObject* self,
                                                PyObject* kwargs) {
   EAGER_TRY
   using Strings = std::vector<std::string>;
-  auto strings = CastPyArg2Strings(PyTuple_GET_ITEM(args, 0), 0);
+  auto strings = CastPyArg2VectorOfString(PyTuple_GET_ITEM(args, 0), 0);
   auto var_tensor = std::make_shared<egr::VariableCompatTensor>();
   *var_tensor->GetMutable<Strings>() = strings;
   self->tensor.set_impl(var_tensor);

paddle/fluid/pybind/eager_utils.cc

@@ -289,6 +289,9 @@ std::vector<paddle::experimental::Tensor> CastPyArg2VectorOfTensor(
     }
   } else if (obj == Py_None) {
     return {};
+  } else if (PyObject_IsInstance(obj,
+                                 reinterpret_cast<PyObject*>(p_tensor_type))) {
+    return {reinterpret_cast<TensorObject*>(obj)->tensor};
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
         "argument (position %d) must be "
@@ -335,6 +338,56 @@ std::vector<int> CastPyArg2VectorOfInt(PyObject* obj, size_t arg_pos) {
     }
   } else if (obj == Py_None) {
     return {};
+  } else if (PyObject_CheckLongOrConvertToLong(&obj)) {
+    return {static_cast<int>(PyLong_AsLong(obj))};
+  } else {
+    PADDLE_THROW(platform::errors::InvalidArgument(
+        "argument (position %d) must be "
+        "list or tuple, but got %s",
+        arg_pos + 1,
+        reinterpret_cast<PyTypeObject*>(obj->ob_type)->tp_name));
+  }
+  return result;
+}
+
+std::vector<int64_t> CastPyArg2VectorOfInt64(PyObject* obj, size_t arg_pos) {
+  std::vector<int64_t> result;
+  if (PyList_Check(obj)) {
+    Py_ssize_t len = PyList_Size(obj);
+    PyObject* item = nullptr;
+    for (Py_ssize_t i = 0; i < len; i++) {
+      item = PyList_GET_ITEM(obj, i);
+      if (PyObject_CheckLongOrConvertToLong(&item)) {
+        result.emplace_back(static_cast<int64_t>(PyLong_AsLong(item)));
+      } else {
+        PADDLE_THROW(platform::errors::InvalidArgument(
+            "argument (position %d) must be "
+            "list of int, but got %s at pos %d",
+            arg_pos + 1,
+            reinterpret_cast<PyTypeObject*>(item->ob_type)->tp_name,
+            i));
+      }
+    }
+  } else if (PyTuple_Check(obj)) {
+    Py_ssize_t len = PyTuple_Size(obj);
+    PyObject* item = nullptr;
+    for (Py_ssize_t i = 0; i < len; i++) {
+      item = PyTuple_GET_ITEM(obj, i);
+      if (PyObject_CheckLongOrConvertToLong(&item)) {
+        result.emplace_back(static_cast<int64_t>(PyLong_AsLong(item)));
+      } else {
+        PADDLE_THROW(platform::errors::InvalidArgument(
+            "argument (position %d) must be "
+            "list of int, but got %s at pos %d",
+            arg_pos + 1,
+            reinterpret_cast<PyTypeObject*>(item->ob_type)->tp_name,
+            i));
+      }
+    }
+  } else if (obj == Py_None) {
+    return {};
+  } else if (PyObject_CheckLongOrConvertToLong(&obj)) {
+    return {static_cast<int64_t>(PyLong_AsLong(obj))};
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
         "argument (position %d) must be "
@@ -363,10 +416,30 @@ std::vector<size_t> CastPyArg2VectorOfSize_t(PyObject* obj, size_t arg_pos) {
             i));
       }
     }
+  } else if (PyTuple_Check(obj)) {
+    Py_ssize_t len = PyTuple_Size(obj);
+    PyObject* item = nullptr;
+    for (Py_ssize_t i = 0; i < len; i++) {
+      item = PyTuple_GET_ITEM(obj, i);
+      if (PyObject_CheckLongOrConvertToLong(&item)) {
+        result.emplace_back(PyLong_AsSize_t(item));
+      } else {
+        PADDLE_THROW(platform::errors::InvalidArgument(
+            "argument (position %d) must be "
+            "list of size_t, but got %s at pos %d",
+            arg_pos + 1,
+            reinterpret_cast<PyTypeObject*>(item->ob_type)->tp_name,
+            i));
+      }
+    }
+  } else if (obj == Py_None) {
+    return {};
+  } else if (PyObject_CheckLongOrConvertToLong(&obj)) {
+    return {PyLong_AsSize_t(obj)};
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
         "argument (position %d) must be "
-        "list, but got %s",
+        "list of size_t, but got %s",
         arg_pos + 1,
         reinterpret_cast<PyTypeObject*>(obj->ob_type)->tp_name));
   }
@@ -487,6 +560,9 @@ std::vector<phi::DenseTensor> CastPyArg2VectorOfTensorBase(PyObject* obj,
     }
   } else if (obj == Py_None) {
     return {};
+  } else if (PyObject_IsInstance(
+                 obj, reinterpret_cast<PyObject*>(g_framework_tensor_pytype))) {
+    return {::pybind11::handle(obj).cast<phi::DenseTensor>()};
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
         "argument (position %d) must be "
@@ -527,7 +603,8 @@ std::unordered_map<std::wstring, int> CastPyArg2Vocab(PyObject* obj,
   }
 }
 
-std::vector<std::string> CastPyArg2Strings(PyObject* obj, ssize_t arg_pos) {
+std::vector<std::string> CastPyArg2VectorOfString(PyObject* obj,
+                                                  ssize_t arg_pos) {
   if (PyList_Check(obj)) {
     return ::pybind11::handle(obj).cast<std::vector<std::string>>();
   } else {
@@ -1385,16 +1462,8 @@ std::vector<phi::Scalar> CastPyArg2ScalarArray(PyObject* obj,
 paddle::experimental::IntArray CastPyArg2IntArray(PyObject* obj,
                                                   const std::string& op_type,
                                                   ssize_t arg_pos) {
-  // In case of IntArray, only two possible PyObjects:
-  // 1. list of int
-  // 2. Tensor
   if (obj == Py_None) {
-    PADDLE_THROW(platform::errors::InvalidArgument(
-        "%s(): argument (position %d) must be "
-        "list or Tensor, but got %s",
-        op_type,
-        arg_pos + 1,
-        ((PyTypeObject*)obj->ob_type)->tp_name));  // NOLINT
+    return paddle::experimental::IntArray({});
   }
 
   // obj could be: int, float, bool, paddle.Tensor
@@ -1408,10 +1477,13 @@ paddle::experimental::IntArray CastPyArg2IntArray(PyObject* obj,
     paddle::experimental::Tensor& value = GetTensorFromPyObject(
         op_type, "" /*arg_name*/, obj, arg_pos, false /*dispensable*/);
     return paddle::experimental::IntArray(value);
+  } else if (PyObject_CheckLongOrConvertToLong(&obj)) {
+    return paddle::experimental::IntArray(
+        {static_cast<int64_t>(PyLong_AsLong(obj))});
   } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
         "%s(): argument (position %d) must be "
-        "list or Tensor, but got %s",
+        "list or int, but got %s",
         op_type,
         arg_pos + 1,
         ((PyTypeObject*)obj->ob_type)->tp_name));  // NOLINT

paddle/fluid/pybind/eager_utils.h

@@ -68,6 +68,7 @@ phi::DenseTensor CastPyArg2FrameworkTensor(PyObject* obj, ssize_t arg_pos);
 std::vector<phi::DenseTensor> CastPyArg2VectorOfTensorBase(PyObject* obj,
                                                            ssize_t arg_pos);
 std::vector<int> CastPyArg2VectorOfInt(PyObject* obj, size_t arg_pos);
+std::vector<int64_t> CastPyArg2VectorOfInt64(PyObject* obj, size_t arg_pos);
 std::vector<size_t> CastPyArg2VectorOfSize_t(PyObject* obj, size_t arg_pos);
 std::vector<std::vector<size_t>> CastPyArg2VectorOfVectorOfSize_t(
     PyObject* obj, size_t arg_pos);
@@ -75,7 +76,8 @@ framework::proto::VarType::Type CastPyArg2ProtoType(PyObject* obj,
                                                     ssize_t arg_pos);
 std::unordered_map<std::wstring, int> CastPyArg2Vocab(PyObject* obj,
                                                       ssize_t arg_pos);
-std::vector<std::string> CastPyArg2Strings(PyObject* obj, ssize_t arg_pos);
+std::vector<std::string> CastPyArg2VectorOfString(PyObject* obj,
+                                                  ssize_t arg_pos);
 std::shared_ptr<jit::Function> CastPyArg2JitFunction(PyObject* obj,
                                                      ssize_t arg_pos);
 

paddle/fluid/pybind/op_function_common.cc

@@ -461,7 +461,11 @@ std::vector<int64_t> CastPyArg2Longs(PyObject* obj,
             i));
       }
     }
-  } else if ((PyObject*)obj != Py_None) {  // NOLINT
+  } else if (obj == Py_None) {
+    return {};
+  } else if (PyObject_CheckLongOrToLong(&obj)) {
+    return {static_cast<int64_t>(PyLong_AsLong(obj))};
+  } else {
     PADDLE_THROW(platform::errors::InvalidArgument(
         "%s(): argument (position %d) must be "
         "list or tuple, but got %s",

paddle/phi/kernels/prod_kernel.cc

@@ -25,7 +25,7 @@ void ProdKernel(const Context& dev_ctx,
                 const IntArray& dims,
                 bool keep_dim,
                 DenseTensor* out) {
-  bool reduce_all = false;  // recompute_reduce_all(x, dims);
+  bool reduce_all = recompute_reduce_all(x, dims);
   ProdRawKernel<T>(dev_ctx, x, dims, keep_dim, reduce_all, out);
 }
 

python/paddle/fluid/tests/unittests/test_mean_op.py

@@ -29,13 +29,13 @@ np.random.seed(10)
 
 def mean_wrapper(x, axis=None, keepdim=False, reduce_all=False):
     if reduce_all:
-        return paddle.mean(x, range(len(x.shape)), keepdim)
+        return paddle.mean(x, list(range(len(x.shape))), keepdim)
     return paddle.mean(x, axis, keepdim)
 
 
 def reduce_mean_wrapper(x, axis=0, keepdim=False, reduce_all=False):
     if reduce_all:
-        return paddle.mean(x, range(len(x.shape)), keepdim)
+        return paddle.mean(x, list(range(len(x.shape))), keepdim)
     return paddle.mean(x, axis, keepdim)
 
 

python/paddle/tensor/linalg.py

@@ -465,12 +465,6 @@ def norm(x, p='fro', axis=None, keepdim=False, name=None):
     ):
         if in_dygraph_mode():
             out = _C_ops.abs(input)
-            reduce_all = (
-                True if axis is None or axis == [] or asvector else False
-            )
-            axis = axis if axis is not None and axis != [] else [0]
-            if reduce_all:
-                assert (axis == []) or (axis is None)
             if porder == np.float64('inf'):
                 return _C_ops.max(out, axis, keepdim)
             else:
@@ -844,27 +838,25 @@ def cond(x, p=None, name=None):
             Calculate the matrix norm of a square matrix or batches of square matrices,
             when porder is in (1, -1, inf, -inf)
         """
-        reduce_all = True if axis is None or axis == [] else False
-        axis = axis if axis is not None and axis != [] else [0]
-        keepdim = False
-
         if in_dygraph_mode():
             abs_out = _C_ops.abs(input)
-            sum_out = _C_ops.sum(abs_out, axis, None, keepdim)
+            sum_out = _C_ops.sum(abs_out, axis, None, False)
 
             if porder == 1 or porder == np.inf:
-                return _C_ops.max(sum_out, [-1], keepdim)
+                return _C_ops.max(sum_out, [-1], False)
             if porder == -1 or porder == -np.inf:
-                return _C_ops.min(sum_out, [-1], keepdim)
+                return _C_ops.min(sum_out, [-1], False)
 
         elif _in_legacy_dygraph():
+            reduce_all = True if axis is None or axis == [] else False
+            axis = axis if axis is not None and axis != [] else [0]
             abs_out = _legacy_C_ops.abs(input)
             sum_out = _legacy_C_ops.reduce_sum(
                 abs_out,
                 'dim',
                 axis,
                 'keepdim',
-                keepdim,
+                False,
                 'reduce_all',
                 reduce_all,
             )
@@ -874,7 +866,7 @@ def cond(x, p=None, name=None):
                     'dim',
                     [-1],
                     'keepdim',
-                    keepdim,
+                    False,
                     'reduce_all',
                     reduce_all,
                 )
@@ -884,11 +876,13 @@ def cond(x, p=None, name=None):
                     'dim',
                     [-1],
                     'keepdim',
-                    keepdim,
+                    False,
                     'reduce_all',
                     reduce_all,
                 )
         else:
+            reduce_all = True if axis is None or axis == [] else False
+            axis = axis if axis is not None and axis != [] else [0]
             block = LayerHelper('norm', **locals())
             abs_out = block.create_variable_for_type_inference(
                 dtype=block.input_dtype()
@@ -908,7 +902,7 @@ def cond(x, p=None, name=None):
                 outputs={'Out': sum_out},
                 attrs={
                     'dim': axis,
-                    'keep_dim': keepdim,
+                    'keep_dim': False,
                     'reduce_all': reduce_all,
                 },
             )
@@ -919,7 +913,7 @@ def cond(x, p=None, name=None):
                     outputs={'Out': out},
                     attrs={
                         'dim': [-1],
-                        'keep_dim': keepdim,
+                        'keep_dim': False,
                         'reduce_all': reduce_all,
                     },
                 )
@@ -930,7 +924,7 @@ def cond(x, p=None, name=None):
                     outputs={'Out': out},
                     attrs={
                         'dim': [-1],
-                        'keep_dim': keepdim,
+                        'keep_dim': False,
                         'reduce_all': reduce_all,
                     },
                 )
@@ -941,22 +935,20 @@ def cond(x, p=None, name=None):
         NOTE:
             Calculate the frobenius norm of a square matrix or batches of square matrices.
         """
-        reduce_all = True if axis is None or axis == [] else False
-        keepdim = False
-
         if in_dygraph_mode():
             pow_out = _C_ops.pow(input, porder)
-            sum_out_1 = _C_ops.sum(pow_out, axis, None, keepdim)
-            sum_out_2 = _C_ops.sum(sum_out_1, axis, None, keepdim)
+            sum_out_1 = _C_ops.sum(pow_out, axis, None, False)
+            sum_out_2 = _C_ops.sum(sum_out_1, axis, None, False)
             return _C_ops.pow(sum_out_2, float(1.0 / porder))
         elif paddle.in_dynamic_mode():
+            reduce_all = True if axis is None or axis == [] else False
             pow_out = _legacy_C_ops.pow(input, 'factor', porder)
             sum_out_1 = _legacy_C_ops.reduce_sum(
                 pow_out,
                 'dim',
                 axis,
                 'keepdim',
-                keepdim,
+                False,
                 'reduce_all',
                 reduce_all,
             )
@@ -965,12 +957,13 @@ def cond(x, p=None, name=None):
                 'dim',
                 axis,
                 'keepdim',
-                keepdim,
+                False,
                 'reduce_all',
                 reduce_all,
             )
             return _legacy_C_ops.pow(sum_out_2, 'factor', float(1.0 / porder))
 
+        reduce_all = True if axis is None or axis == [] else False
         block = LayerHelper('norm', **locals())
         pow_out = block.create_variable_for_type_inference(
             dtype=block.input_dtype()
@@ -994,13 +987,13 @@ def cond(x, p=None, name=None):
             type='reduce_sum',
             inputs={'X': pow_out},
             outputs={'Out': sum_out_1},
-            attrs={'dim': axis, 'keep_dim': keepdim, 'reduce_all': reduce_all},
+            attrs={'dim': axis, 'keep_dim': False, 'reduce_all': reduce_all},
         )
         block.append_op(
             type='reduce_sum',
             inputs={'X': sum_out_1},
             outputs={'Out': sum_out_2},
-            attrs={'dim': axis, 'keep_dim': keepdim, 'reduce_all': reduce_all},
+            attrs={'dim': axis, 'keep_dim': False, 'reduce_all': reduce_all},
         )
         block.append_op(
             type='pow',
@@ -1016,28 +1009,27 @@ def cond(x, p=None, name=None):
             Calculate the matrix norm, which is related to singular values, of a matrix
             or batches of matrices, including nuclear norm, 2-norm and (-2)-norm.
         """
+        if not in_dygraph_mode():
             reduce_all = True if axis is None or axis == [] else False
-        keepdim = False
-
         u, s, vh = svd(input, full_matrices=False)
 
         if _non_static_mode():
             if porder == "nuc":
                 if in_dygraph_mode():
-                    return _C_ops.sum(s, axis, None, keepdim)
+                    return _C_ops.sum(s, axis, None, False)
                 else:
                     return _legacy_C_ops.reduce_sum(
                         s,
                         'dim',
                         axis,
                         'keepdim',
-                        keepdim,
+                        False,
                         'reduce_all',
                         reduce_all,
                     )
             if in_dygraph_mode():
-                max_out = _C_ops.max(s, axis, keepdim)
-                min_out = _C_ops.min(s, axis, keepdim)
+                max_out = _C_ops.max(s, axis, False)
+                min_out = _C_ops.min(s, axis, False)
                 if porder == 2:
                     return _C_ops.divide(max_out, min_out)
                 if porder == -2:
@@ -1045,10 +1037,10 @@ def cond(x, p=None, name=None):
 
             else:
                 max_out = _legacy_C_ops.reduce_max(
-                    s, 'dim', axis, 'keepdim', keepdim, 'reduce_all', reduce_all
+                    s, 'dim', axis, 'keepdim', False, 'reduce_all', reduce_all
                 )
                 min_out = _legacy_C_ops.reduce_min(
-                    s, 'dim', axis, 'keepdim', keepdim, 'reduce_all', reduce_all
+                    s, 'dim', axis, 'keepdim', False, 'reduce_all', reduce_all
                 )
                 if porder == 2:
                     return _legacy_C_ops.elementwise_div(
@@ -1070,7 +1062,7 @@ def cond(x, p=None, name=None):
                 outputs={'Out': out},
                 attrs={
                     'dim': axis,
-                    'keep_dim': keepdim,
+                    'keep_dim': False,
                     'reduce_all': reduce_all,
                 },
             )
@@ -1085,13 +1077,13 @@ def cond(x, p=None, name=None):
             type='reduce_max',
             inputs={'X': s},
             outputs={'Out': max_out},
-            attrs={'dim': axis, 'keep_dim': keepdim, 'reduce_all': reduce_all},
+            attrs={'dim': axis, 'keep_dim': False, 'reduce_all': reduce_all},
         )
         block.append_op(
             type='reduce_min',
             inputs={'X': s},
             outputs={'Out': min_out},
-            attrs={'dim': axis, 'keep_dim': keepdim, 'reduce_all': reduce_all},
+            attrs={'dim': axis, 'keep_dim': False, 'reduce_all': reduce_all},
         )
         if porder == 2:
             block.append_op(

python/paddle/tensor/math.py

@@ -1303,7 +1303,6 @@ def sum(x, axis=None, dtype=None, keepdim=False, name=None):
             out8 = paddle.sum(x, axis=0)  # [1, 1, 1, 1]
             out9 = paddle.sum(x, axis=1)  # [4, 0]
     """
-    reduce_all, axis = _get_reduce_axis_with_tensor(axis, x)
 
     dtype_flag = False
     if dtype is not None:
@@ -1313,6 +1312,8 @@ def sum(x, axis=None, dtype=None, keepdim=False, name=None):
     if in_dygraph_mode():
         return _C_ops.sum(x, axis, dtype, keepdim)
 
+    reduce_all, axis = _get_reduce_axis_with_tensor(axis, x)
+
     if _in_legacy_dygraph():
         if dtype_flag:
             return _legacy_C_ops.reduce_sum(
@@ -2382,9 +2383,9 @@ def max(x, axis=None, keepdim=False, name=None):
             #[7., 8.], [[[0., 0.], [0., 0.]], [[0., 0.], [1., 1.]]]
     """
 
-    reduce_all, axis = _get_reduce_axis_with_tensor(axis, x)
     if in_dygraph_mode():
         return _C_ops.max(x, axis, keepdim)
+    reduce_all, axis = _get_reduce_axis_with_tensor(axis, x)
     if _in_legacy_dygraph():
         return _legacy_C_ops.reduce_max(
             x, 'dim', axis, 'keep_dim', keepdim, 'reduce_all', reduce_all
@@ -2484,10 +2485,10 @@ def min(x, axis=None, keepdim=False, name=None):
             #[1., 2.], [[[1., 1.], [0., 0.]], [[0., 0.], [0., 0.]]]
     """
 
-    reduce_all, axis = _get_reduce_axis_with_tensor(axis, x)
     if in_dygraph_mode():
         return _C_ops.min(x, axis, keepdim)
 
+    reduce_all, axis = _get_reduce_axis_with_tensor(axis, x)
     if _in_legacy_dygraph():
         return _legacy_C_ops.reduce_min(
             x, 'dim', axis, 'keep_dim', keepdim, 'reduce_all', reduce_all
@@ -2597,10 +2598,10 @@ def amax(x, axis=None, keepdim=False, name=None):
             print(result6, y.grad)
             #[0.9., 0.9], [[[0., 0.3333], [0.5, 0.3333]], [[0.5, 0.3333], [1., 1.]]]
     """
-
-    reduce_all, axis = _get_reduce_axis(axis, x)
     if in_dygraph_mode():
         return _C_ops.amax(x, axis, keepdim)
+
+    reduce_all, axis = _get_reduce_axis(axis, x)
     if _in_legacy_dygraph():
         return _legacy_C_ops.reduce_amax(
             x, 'dim', axis, 'keep_dim', keepdim, 'reduce_all', reduce_all
@@ -2711,11 +2712,11 @@ def amin(x, axis=None, keepdim=False, name=None):
             print(result6, y.grad)
             #[0.1., 0.1], [[[0., 0.3333], [0.5, 0.3333]], [[0.5, 0.3333], [1., 1.]]]
     """
-
-    reduce_all, axis = _get_reduce_axis(axis, x)
     if in_dygraph_mode():
         return _C_ops.amin(x, axis, keepdim)
-    elif _in_legacy_dygraph():
+
+    reduce_all, axis = _get_reduce_axis(axis, x)
+    if _in_legacy_dygraph():
         return _legacy_C_ops.reduce_amin(
             x, 'dim', axis, 'keep_dim', keepdim, 'reduce_all', reduce_all
         )
@@ -3860,11 +3861,10 @@ def all(x, axis=None, keepdim=False, name=None):
             print(out4)
 
     """
-    reduce_all, axis = _get_reduce_axis(axis, x)
-
     if in_dygraph_mode():
         return _C_ops.all(x, axis, keepdim)
 
+    reduce_all, axis = _get_reduce_axis(axis, x)
     if _in_legacy_dygraph():
         return _legacy_C_ops.reduce_all(
             x, 'dim', axis, 'keep_dim', keepdim, 'reduce_all', reduce_all
@@ -3937,11 +3937,10 @@ def any(x, axis=None, keepdim=False, name=None):
             print(out4)
 
     """
-    reduce_all, axis = _get_reduce_axis(axis, x)
-
     if in_dygraph_mode():
         return _C_ops.any(x, axis, keepdim)
 
+    reduce_all, axis = _get_reduce_axis(axis, x)
     if _in_legacy_dygraph():
         return _legacy_C_ops.reduce_any(
             x, 'dim', axis, 'keep_dim', keepdim, 'reduce_all', reduce_all

python/paddle/tensor/stat.py

@@ -79,11 +79,10 @@ def mean(x, axis=None, keepdim=False, name=None):
             out4 = paddle.mean(x, axis=[0, 2])
             # [ 8.5 12.5 16.5]
     """
-
-    reduce_all, axis = _get_reduce_axis_with_tensor(axis, x)
-
     if in_dygraph_mode():
         return _C_ops.mean(x, axis, keepdim)
+
+    reduce_all, axis = _get_reduce_axis_with_tensor(axis, x)
     if _in_legacy_dygraph():
         return _legacy_C_ops.reduce_mean(
             x, 'dim', axis, 'keep_dim', keepdim, 'reduce_all', reduce_all