Add BF16 uniform random initializer (#32468)

* Add bf16 uniform random initializer

* Remove duplicated section

* Change UT to CPU place only

* Put detail functions into anonymous namespace

paddle/fluid/operators/fill_constant_op.h

@@ -117,6 +117,9 @@ class FillConstantKernel : public framework::OpKernel<T> {
     }
 
     if (actual_place == 0) {
+      VLOG(4) << "[CPU] FillConstantKernel"
+              << ((data_type == framework::proto::VarType::BF16) ? "<bfloat16>"
+                                                                 : "<T>");
       tensor->mutable_data(platform::CPUPlace(), data_type);
       math::SetConstant<platform::CPUDeviceContext, T> functor;
       functor(reinterpret_cast<const platform::CPUDeviceContext &>(dev_ctx),

paddle/fluid/operators/uniform_random_op.cc

@@ -18,10 +18,41 @@ limitations under the License. */
 #include "paddle/fluid/framework/generator.h"
 #include "paddle/fluid/framework/op_registry.h"
 #include "paddle/fluid/framework/operator.h"
+#include "paddle/fluid/platform/bfloat16.h"
 
 namespace paddle {
 namespace operators {
 
+namespace {
+template <typename T>
+inline void UniformRealDistribution(T *data, const int64_t &size,
+                                    const float &min, const float &max,
+                                    const unsigned int &seed) {
+  VLOG(4) << "[CPU] UniformRandomKernel<T>";
+  std::uniform_real_distribution<T> dist(static_cast<T>(min),
+                                         static_cast<T>(max));
+  auto engine = paddle::framework::GetCPURandomEngine(seed);
+
+  for (int64_t i = 0; i < size; ++i) {
+    data[i] = dist(*engine);
+  }
+}
+
+template <>
+inline void UniformRealDistribution(paddle::platform::bfloat16 *data,
+                                    const int64_t &size, const float &min,
+                                    const float &max,
+                                    const unsigned int &seed) {
+  VLOG(4) << "[CPU] UniformRandomKernel<bfloat16>";
+  std::uniform_real_distribution<float> dist(min, max);
+  auto engine = paddle::framework::GetCPURandomEngine(seed);
+
+  for (int64_t i = 0; i < size; ++i) {
+    data[i] = static_cast<paddle::platform::bfloat16>(dist(*engine));
+  }
+}
+}  // namespace
+
 // It seems that Eigen::Tensor::random in GPU will SEGFAULT.
 // Use std::random and thrust::random(thrust is a std library in CUDA) to
 // implement uniform random.
@@ -61,17 +92,11 @@ class CPUUniformRandomKernel : public framework::OpKernel<T> {
           framework::ToTypeName(out_var->Type())));
     }
     T *data = tensor->mutable_data<T>(ctx.GetPlace());
-
     int64_t size = tensor->numel();
-    std::uniform_real_distribution<T> dist(
-        static_cast<T>(ctx.Attr<float>("min")),
-        static_cast<T>(ctx.Attr<float>("max")));
-    unsigned int seed = static_cast<unsigned int>(ctx.Attr<int>("seed"));
-    auto engine = framework::GetCPURandomEngine(seed);
 
-    for (int64_t i = 0; i < size; ++i) {
-      data[i] = dist(*engine);
-    }
+    UniformRealDistribution<T>(
+        data, size, ctx.Attr<float>("min"), ctx.Attr<float>("max"),
+        static_cast<unsigned int>(ctx.Attr<int>("seed")));
 
     unsigned int diag_num =
         static_cast<unsigned int>(ctx.Attr<int>("diag_num"));
@@ -257,9 +282,12 @@ REGISTER_OPERATOR(
     paddle::framework::EmptyGradOpMaker<paddle::imperative::OpBase>,
     paddle::operators::UniformRandomOpVarTypeInference);
 
-REGISTER_OP_CPU_KERNEL(uniform_random,
-                       paddle::operators::CPUUniformRandomKernel<float>,
-                       paddle::operators::CPUUniformRandomKernel<double>);
-REGISTER_OP_CPU_KERNEL(uniform_random_batch_size_like,
-                       paddle::operators::CPUUniformRandomKernel<float>,
-                       paddle::operators::CPUUniformRandomKernel<double>);
+REGISTER_OP_CPU_KERNEL(
+    uniform_random, paddle::operators::CPUUniformRandomKernel<float>,
+    paddle::operators::CPUUniformRandomKernel<double>,
+    paddle::operators::CPUUniformRandomKernel<paddle::platform::bfloat16>);
+REGISTER_OP_CPU_KERNEL(
+    uniform_random_batch_size_like,
+    paddle::operators::CPUUniformRandomKernel<float>,
+    paddle::operators::CPUUniformRandomKernel<double>,
+    paddle::operators::CPUUniformRandomKernel<paddle::platform::bfloat16>);

paddle/fluid/operators/uniform_random_op.h

@@ -24,9 +24,9 @@ namespace operators {
 using Tensor = framework::Tensor;
 
 inline std::vector<int64_t> GetNewDataFromShapeTensor(
-    const Tensor *new_data_tensor) {
+    const Tensor* new_data_tensor) {
   if (new_data_tensor->type() == framework::proto::VarType::INT64) {
-    auto *new_data = new_data_tensor->data<int64_t>();
+    auto* new_data = new_data_tensor->data<int64_t>();
     framework::Tensor cpu_starts_tensor;
     if (platform::is_gpu_place(new_data_tensor->place())) {
       TensorCopySync(*new_data_tensor, platform::CPUPlace(),
@@ -37,7 +37,7 @@ inline std::vector<int64_t> GetNewDataFromShapeTensor(
                                       new_data + new_data_tensor->numel());
     return vec_new_data;
   } else if (new_data_tensor->type() == framework::proto::VarType::INT32) {
-    auto *new_data = new_data_tensor->data<int32_t>();
+    auto* new_data = new_data_tensor->data<int32_t>();
     std::vector<int64_t> vec_new_data;
     framework::Tensor cpu_starts_tensor;
     if (platform::is_gpu_place(new_data_tensor->place())) {
@@ -58,7 +58,7 @@ inline std::vector<int64_t> GetNewDataFromShapeTensor(
 }
 
 inline std::vector<int64_t> GetNewDataFromShapeTensorList(
-    const std::vector<const Tensor *> &list_new_shape_tensor) {
+    const std::vector<const Tensor*>& list_new_shape_tensor) {
   std::vector<int64_t> vec_new_shape;
   vec_new_shape.reserve(list_new_shape_tensor.size());
   for (size_t i = 0; i < list_new_shape_tensor.size(); ++i) {
@@ -97,6 +97,5 @@ inline std::vector<int64_t> GetNewDataFromShapeTensorList(
 
   return vec_new_shape;
 }
-
 }  // namespace operators
 }  // namespace paddle

python/paddle/fluid/initializer.py

@@ -245,7 +245,7 @@ class UniformInitializer(Initializer):
             self._seed = block.program.random_seed
 
         # to be compatible of fp16 initializers
-        if var.dtype in [VarDesc.VarType.FP16, VarDesc.VarType.BF16]:
+        if var.dtype == VarDesc.VarType.FP16:
             out_dtype = VarDesc.VarType.FP32
             out_var = block.create_var(
                 name=unique_name.generate(".".join(
@@ -274,7 +274,7 @@ class UniformInitializer(Initializer):
             },
             stop_gradient=True)
 
-        if var.dtype in [VarDesc.VarType.FP16, VarDesc.VarType.BF16]:
+        if var.dtype == VarDesc.VarType.FP16:
             block.append_op(
                 type="cast",
                 inputs={"X": out_var},
@@ -540,7 +540,8 @@ class XavierInitializer(Initializer):
             self._seed = block.program.random_seed
 
         # to be compatible of fp16 initalizers
-        if var.dtype in [VarDesc.VarType.FP16, VarDesc.VarType.BF16]:
+        if var.dtype == VarDesc.VarType.FP16 or (
+                var.dtype == VarDesc.VarType.BF16 and not self._uniform):
             out_dtype = VarDesc.VarType.FP32
             out_var = block.create_var(
                 name=unique_name.generate(".".join(
@@ -582,7 +583,8 @@ class XavierInitializer(Initializer):
                 },
                 stop_gradient=True)
 
-        if var.dtype in [VarDesc.VarType.FP16, VarDesc.VarType.BF16]:
+        if var.dtype == VarDesc.VarType.FP16 or (
+                var.dtype == VarDesc.VarType.BF16 and not self._uniform):
             block.append_op(
                 type="cast",
                 inputs={"X": out_var},
@@ -671,7 +673,8 @@ class MSRAInitializer(Initializer):
             self._seed = block.program.random_seed
 
         # to be compatible of fp16 initalizers
-        if var.dtype in [VarDesc.VarType.FP16, VarDesc.VarType.BF16]:
+        if var.dtype == VarDesc.VarType.FP16 or (
+                var.dtype == VarDesc.VarType.BF16 and not self._uniform):
             out_dtype = VarDesc.VarType.FP32
             out_var = block.create_var(
                 name=unique_name.generate(".".join(
@@ -713,7 +716,8 @@ class MSRAInitializer(Initializer):
                 },
                 stop_gradient=True)
 
-        if var.dtype in [VarDesc.VarType.FP16, VarDesc.VarType.BF16]:
+        if var.dtype == VarDesc.VarType.FP16 or (
+                var.dtype == VarDesc.VarType.BF16 and not self._uniform):
             block.append_op(
                 type="cast",
                 inputs={"X": out_var},

python/paddle/fluid/layers/nn.py

@@ -10524,10 +10524,10 @@ def uniform_random_batch_size_like(input,
 
 
     """
-    check_variable_and_dtype(input, 'Input', ("float32", 'float64'),
+    check_variable_and_dtype(input, 'Input', ("float32", 'float64', "uint16"),
                              'uniform_random_batch_size_like')
     check_type(shape, 'shape', (list, tuple), 'uniform_random_batch_size_like')
-    check_dtype(dtype, 'dtype', ('float32', 'float64'),
+    check_dtype(dtype, 'dtype', ('float32', 'float64', "uint16"),
                 'uniform_random_batch_size_like')
 
     helper = LayerHelper('uniform_random_batch_size_like', **locals())
@@ -15121,7 +15121,8 @@ def uniform_random(shape, dtype='float32', min=-1.0, max=1.0, seed=0,
                                        float(max), 'seed', seed, 'dtype', dtype)
 
     check_type(shape, 'shape', (list, tuple, Variable), 'uniform_random/rand')
-    check_dtype(dtype, 'dtype', ('float32', 'float64'), 'uniform_random/rand')
+    check_dtype(dtype, 'dtype', ('float32', 'float64', 'uint16'),
+                'uniform_random/rand')
 
     inputs = dict()
     attrs = {'seed': seed, 'min': min, 'max': max, 'dtype': dtype}

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

@@ -53,7 +53,7 @@ class TestConstantInitializer(unittest.TestCase):
                 lod_level=0,
                 name="param",
                 initializer=initializer.ConstantInitializer())
-        num_ops = 2 if dtype in ["float16"] else 1
+        num_ops = 2 if dtype == "float16" else 1
         self.assertEqual(len(block.ops), num_ops)
         init_op = block.ops[0]
         self.assertEqual(init_op.type, 'fill_constant')
@@ -72,7 +72,7 @@ class TestConstantInitializer(unittest.TestCase):
                 lod_level=0,
                 name="param",
                 initializer=initializer.ConstantInitializer(2.3))
-        num_ops = 2 if dtype in ["float16"] else 1
+        num_ops = 2 if dtype == "float16" else 1
         self.assertEqual(len(block.ops), num_ops)
         init_op = block.ops[0]
         self.assertEqual(init_op.type, 'fill_constant')
@@ -108,7 +108,7 @@ class TestUniformInitializer(unittest.TestCase):
                 lod_level=0,
                 name="param",
                 initializer=initializer.UniformInitializer())
-        num_ops = 2 if dtype in ["float16", "uint16"] else 1
+        num_ops = 2 if dtype == "float16" else 1
         self.assertEqual(len(block.ops), num_ops)
         init_op = block.ops[0]
         self.assertEqual(init_op.type, 'uniform_random')
@@ -153,7 +153,7 @@ class TestUniformInitializer(unittest.TestCase):
                 lod_level=0,
                 name="param",
                 initializer=initializer.UniformInitializer(-4.2, 3.1, 123))
-        num_ops = 2 if dtype in ["float16", "uint16"] else 1
+        num_ops = 2 if dtype == "float16" else 1
         self.assertEqual(len(block.ops), num_ops)
         init_op = block.ops[0]
         self.assertEqual(init_op.type, 'uniform_random')
@@ -174,7 +174,7 @@ class TestUniformInitializer(unittest.TestCase):
                 lod_level=0,
                 name="param",
                 initializer=initializer.UniformInitializer(-4.2, float(i), 123))
-        num_ops = 2 if dtype in ["float16", "uint16"] else 1
+        num_ops = 2 if dtype == "float16" else 1
         self.assertEqual(len(block.ops), num_ops)
         init_op0 = block.ops[0]
         self.assertEqual(init_op0.type, 'uniform_random')
@@ -195,13 +195,11 @@ class TestUniformInitializer(unittest.TestCase):
 
     def test_uniform_initializer_bf16(self):
         """Test uniform initializer with bfloat16
+           No cast operator has been added here
         """
         block = self.test_uniform_initializer_default_value("uint16")
-        self.assertTrue(check_cast_op(block.ops[1]))
         block = self.test_uniform_initializer(dtype="uint16")
-        self.assertTrue(check_cast_op(block.ops[1]))
         block = self.test_uniform_initializer_two_op("uint16")
-        self.assertTrue(check_cast_op(block.ops[1]))
 
 
 class TestNormalInitializer(unittest.TestCase):
@@ -347,7 +345,9 @@ class TestXavierInitializer(unittest.TestCase):
         self.assertAlmostEqual(init_op.attr('std'), std, delta=DELTA)
         self.assertEqual(init_op.attr('seed'), 0)
 
-    def test_xavier_initializer_supplied_arguments(self, dtype="float32"):
+    def test_xavier_initializer_supplied_arguments(self,
+                                                   dtype="float32",
+                                                   uniform=True):
         """Test the Xavier initializer with supplied arguments
         """
         program = framework.Program()
@@ -359,14 +359,18 @@ class TestXavierInitializer(unittest.TestCase):
                 lod_level=0,
                 name="param",
                 initializer=initializer.XavierInitializer(
-                    fan_in=12, fan_out=23, seed=134))
-        num_ops = 2 if dtype in ["float16", "uint16"] else 1
+                    uniform=uniform, fan_in=12, fan_out=23, seed=134))
+        num_ops = 2 if (dtype == "float16" or (dtype == "uint16" and
+                                               not uniform)) else 1
         self.assertEqual(len(block.ops), num_ops)
         init_op = block.ops[0]
-        self.assertEqual(init_op.type, 'uniform_random')
-        limit = np.sqrt(6.0 / (12 + 23))
-        self.assertAlmostEqual(init_op.attr('min'), -limit, delta=DELTA)
-        self.assertAlmostEqual(init_op.attr('max'), limit, delta=DELTA)
+        if uniform:
+            self.assertEqual(init_op.type, 'uniform_random')
+            limit = np.sqrt(6.0 / (12 + 23))
+            self.assertAlmostEqual(init_op.attr('min'), -limit, delta=DELTA)
+            self.assertAlmostEqual(init_op.attr('max'), limit, delta=DELTA)
+        else:
+            self.assertEqual(init_op.type, 'gaussian_random')
         self.assertEqual(init_op.attr('seed'), 134)
         return block
 
@@ -379,8 +383,12 @@ class TestXavierInitializer(unittest.TestCase):
     def test_xavier_initializer_bf16(self):
         """Test the Xavier initializer with bfloat16
         """
-        block = self.test_xavier_initializer_supplied_arguments("uint16")
-        self.assertTrue(check_cast_op(block.ops[1]))
+        block_uniform = self.test_xavier_initializer_supplied_arguments(
+            "uint16")
+        self.assertEqual(len(block_uniform.ops), 1)
+        block_gaussian = self.test_xavier_initializer_supplied_arguments(
+            "uint16", False)
+        self.assertTrue(check_cast_op(block_gaussian.ops[1]))
 
 
 class TestMSRAInitializer(unittest.TestCase):
@@ -483,7 +491,7 @@ class TestMSRAInitializer(unittest.TestCase):
                 name="param",
                 initializer=initializer.MSRAInitializer(
                     fan_in=12, seed=134))
-        num_ops = 2 if dtype in ["float16", "uint16"] else 1
+        num_ops = 2 if dtype == "float16" else 1
         self.assertEqual(len(block.ops), num_ops)
         init_op = block.ops[0]
         self.assertEqual(init_op.type, 'uniform_random')
@@ -503,7 +511,6 @@ class TestMSRAInitializer(unittest.TestCase):
         """Test the MSRA initializer with bfloat16
         """
         block = self.test_msra_initializer_supplied_arguments("uint16")
-        self.assertTrue(check_cast_op(block.ops[1]))
 
 
 class TestBilinearInitializer(unittest.TestCase):

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

@@ -225,7 +225,7 @@ class TestUniform(unittest.TestCase):
                 lod_level=0,
                 name="param",
                 initializer=initializer.Uniform())
-        num_ops = 2 if dtype in ["float16", "uint16"] else 1
+        num_ops = 2 if dtype == "float16" else 1
         self.assertEqual(len(block.ops), num_ops)
         init_op = block.ops[0]
         self.assertEqual(init_op.type, 'uniform_random')
@@ -256,7 +256,7 @@ class TestUniform(unittest.TestCase):
                 lod_level=0,
                 name="param",
                 initializer=initializer.Uniform())
-        num_ops = 2 if dtype in ["float16", "uint16"] else 1
+        num_ops = 2 if dtype == "float16" else 1
         self.assertEqual(len(block.ops), num_ops)
         init_op = block.ops[0]
         self.assertEqual(init_op.type, 'uniform_random')
@@ -287,7 +287,7 @@ class TestUniform(unittest.TestCase):
                 lod_level=0,
                 name="param",
                 initializer=initializer.Uniform(min_value, max_vlaue))
-        num_ops = 2 if dtype in ["float16", "uint16"] else 1
+        num_ops = 2 if dtype == "float16" else 1
         self.assertEqual(len(block.ops), num_ops)
         init_op = block.ops[0]
         self.assertEqual(init_op.type, 'uniform_random')
@@ -317,7 +317,7 @@ class TestUniform(unittest.TestCase):
                 lod_level=0,
                 name="param",
                 initializer=initializer.Uniform(min_value, float(i)))
-        num_ops = 2 if dtype in ["float16", "uint16"] else 1
+        num_ops = 2 if dtype == "float16" else 1
         self.assertEqual(len(block.ops), num_ops)
         init_op0 = block.ops[0]
         self.assertEqual(init_op0.type, 'uniform_random')
@@ -343,11 +343,8 @@ class TestUniform(unittest.TestCase):
         """Test uniform initializer with bfloat16
         """
         block = self.test_uniform_initializer_default_value("uint16")  #bfloat16
-        self.assertTrue(check_cast_op(block.ops[1]))
         block = self.test_uniform_initializer(dtype="uint16")  #bfloat16
-        self.assertTrue(check_cast_op(block.ops[1]))
         block = self.test_uniform_initializer_two_op("uint16")  #bfloat16
-        self.assertTrue(check_cast_op(block.ops[1]))
 
     def test_uniform_initializer_dygraph(self):
         """Test uniform initializer in dygraph model.

python/paddle/fluid/tests/unittests/test_uniform_random_bf16_op.py

+#   Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import unittest
+import numpy as np
+from op_test import OpTest, convert_uint16_to_float, convert_float_to_uint16
+import paddle
+import paddle.fluid.core as core
+from paddle.fluid.op import Operator
+import paddle.fluid as fluid
+from paddle.fluid import Program, program_guard
+from paddle.fluid.tests.unittests.test_uniform_random_op import output_hist, output_hist_diag
+
+
+class TestUniformRandomOpBF16(OpTest):
+    def setUp(self):
+        self.op_type = "uniform_random"
+        self.dtype = "uint16"
+        self.inputs = {}
+        self.init_attrs()
+        self.outputs = {"Out": np.zeros((1000, 784)).astype("uint16")}
+
+    def init_attrs(self):
+        self.attrs = {
+            "shape": [1000, 784],
+            "min": -5.0,
+            "max": 10.0,
+            "seed": 10,
+            'dtype': int(core.VarDesc.VarType.BF16)
+        }
+        self.output_hist = output_hist
+
+    def verify_output(self, outs):
+        if np.array(outs[0]).dtype == np.uint16:
+            result = convert_uint16_to_float(np.array(outs[0]))
+        else:
+            result = np.array(outs[0])
+
+        hist, prob = self.output_hist(result)
+        self.assertTrue(
+            np.allclose(
+                hist, prob, rtol=0, atol=0.01), "hist: " + str(hist))
+
+    def test_check_output(self):
+        outs = self.calc_output(core.CPUPlace())
+        outs = [np.array(out) for out in outs]
+        outs.sort(key=len)
+        self.verify_output(outs)
+
+
+class TestUniformRandomOpBF16AttrTensorList(TestUniformRandomOpBF16):
+    def setUp(self):
+        self.op_type = "uniform_random"
+        self.new_shape = (1000, 784)
+        self.dtype = "uint16"
+        shape_tensor = []
+        for index, ele in enumerate(self.new_shape):
+            shape_tensor.append(("x" + str(index), np.ones(
+                (1)).astype("int64") * ele))
+        self.inputs = {'ShapeTensorList': shape_tensor}
+        self.init_attrs()
+        self.outputs = {"Out": np.zeros((1000, 784)).astype("uint16")}
+
+    def init_attrs(self):
+        self.attrs = {
+            "min": -5.0,
+            "max": 10.0,
+            "seed": 10,
+            'dtype': int(core.VarDesc.VarType.BF16)
+        }
+        self.output_hist = output_hist
+
+
+class TestUniformRandomOpBF16AttrTensorInt32(
+        TestUniformRandomOpBF16AttrTensorList):
+    def setUp(self):
+        self.op_type = "uniform_random"
+        self.dtype = "uint16"
+        self.inputs = {"ShapeTensor": np.array([1000, 784]).astype("int32")}
+        self.init_attrs()
+        self.outputs = {"Out": np.zeros((1000, 784)).astype("uint16")}
+
+
+class TestUniformRandomOpBF16WithDiagInit(TestUniformRandomOpBF16):
+    def init_attrs(self):
+        self.attrs = {
+            "shape": [1000, 784],
+            "min": -5.0,
+            "max": 10.0,
+            "seed": 10,
+            "diag_num": 784,
+            "diag_step": 784,
+            "diag_val": 1.0,
+            'dtype': int(core.VarDesc.VarType.BF16)
+        }
+        self.output_hist = output_hist_diag
+
+
+class TestUniformRandomOpBF16SelectedRows(unittest.TestCase):
+    def test_check_output(self):
+        self.check_with_place(core.CPUPlace())
+
+    def check_with_place(self, place):
+        scope = core.Scope()
+        out = scope.var("X").get_selected_rows()
+        paddle.seed(10)
+        op = Operator(
+            "uniform_random",
+            Out="X",
+            shape=[1000, 784],
+            min=-5.0,
+            max=10.0,
+            seed=10,
+            dtype=int(core.VarDesc.VarType.BF16))
+        op.run(scope, place)
+        self.assertEqual(out.get_tensor().shape(), [1000, 784])
+        result = convert_uint16_to_float(np.array(out.get_tensor()))
+        hist, prob = output_hist(result)
+        self.assertTrue(
+            np.allclose(
+                hist, prob, rtol=0, atol=0.01), "hist: " + str(hist))
+
+
+class TestUniformRandomOpBF16SelectedRowsWithDiagInit(
+        TestUniformRandomOpBF16SelectedRows):
+    def check_with_place(self, place):
+        scope = core.Scope()
+        out = scope.var("X").get_selected_rows()
+        paddle.seed(10)
+        op = Operator(
+            "uniform_random",
+            Out="X",
+            shape=[500, 784],
+            min=-5.0,
+            max=10.0,
+            seed=10,
+            diag_num=500,
+            diag_step=784,
+            diag_val=1.0,
+            dtype=int(core.VarDesc.VarType.BF16))
+        op.run(scope, place)
+        self.assertEqual(out.get_tensor().shape(), [500, 784])
+        result = convert_uint16_to_float(np.array(out.get_tensor()))
+        hist, prob = output_hist(result)
+        self.assertTrue(
+            np.allclose(
+                hist, prob, rtol=0, atol=0.01), "hist: " + str(hist))
+
+
+class TestUniformRandomOpBF16AttrTensorAPI(unittest.TestCase):
+    def test_attr_tensor_API(self):
+        startup_program = fluid.Program()
+        train_program = fluid.Program()
+        with fluid.program_guard(train_program, startup_program):
+            dim_tensor = fluid.layers.fill_constant([1], "int64", 3)
+            ret = fluid.layers.nn.uniform_random(
+                [1, dim_tensor, 2], dtype=np.uint16)
+
+            place = fluid.CPUPlace()
+            exe = fluid.Executor(place)
+
+            exe.run(startup_program)
+            outs = exe.run(train_program, fetch_list=[ret])
+
+
+class TestUniformRandomOpAPISeed(unittest.TestCase):
+    def test_attr_tensor_API(self):
+        _seed = 10
+        gen = paddle.seed(_seed)
+        gen._is_init_py = False
+        startup_program = fluid.Program()
+        train_program = fluid.Program()
+        with fluid.program_guard(train_program, startup_program):
+            _min = 5
+            _max = 10
+
+            ret = fluid.layers.nn.uniform_random(
+                [2, 3, 2], min=_min, max=_max, seed=_seed)
+            ret_2 = fluid.layers.nn.uniform_random(
+                [2, 3, 2], min=_min, max=_max, seed=_seed)
+            res = fluid.layers.equal(ret, ret_2)
+            place = fluid.CPUPlace()
+            exe = fluid.Executor(place)
+
+            exe.run(startup_program)
+            ret_value, cmp_value = exe.run(train_program, fetch_list=[ret, res])
+            self.assertTrue(np.array(cmp_value).all())
+            for i in ret_value.flatten():
+                self.assertGreaterEqual(i, _min)
+                self.assertLess(i, _max)
+
+
+class TestUniformRandomOpBF16SelectedRowsShapeTensor(unittest.TestCase):
+    def test_check_output(self):
+        place = core.CPUPlace()
+        scope = core.Scope()
+        out = scope.var("X").get_selected_rows()
+        shape_tensor = scope.var("Shape").get_tensor()
+        shape_tensor.set(np.array([1000, 784]).astype("int64"), place)
+        paddle.seed(10)
+        op = Operator(
+            "uniform_random",
+            ShapeTensor="Shape",
+            Out="X",
+            min=-5.0,
+            max=10.0,
+            seed=10,
+            dtype=int(core.VarDesc.VarType.BF16))
+        op.run(scope, place)
+        self.assertEqual(out.get_tensor().shape(), [1000, 784])
+        result = convert_uint16_to_float(np.array(out.get_tensor()))
+        hist, prob = output_hist(result)
+        self.assertTrue(
+            np.allclose(
+                hist, prob, rtol=0, atol=0.01), "hist: " + str(hist))
+
+
+class TestUniformRandomOpBF16SelectedRowsShapeTensorList(
+        TestUniformRandomOpBF16SelectedRowsShapeTensor):
+    def test_check_output(self):
+        place = core.CPUPlace()
+        scope = core.Scope()
+        out = scope.var("X").get_selected_rows()
+        shape_1 = scope.var("shape1").get_tensor()
+        shape_1.set(np.array([1000]).astype("int64"), place)
+        shape_2 = scope.var("shape2").get_tensor()
+        shape_2.set(np.array([784]).astype("int64"), place)
+        paddle.seed(10)
+        op = Operator(
+            "uniform_random",
+            ShapeTensorList=["shape1", "shape2"],
+            Out="X",
+            min=-5.0,
+            max=10.0,
+            seed=10,
+            dtype=int(core.VarDesc.VarType.BF16))
+        op.run(scope, place)
+        self.assertEqual(out.get_tensor().shape(), [1000, 784])
+        result = convert_uint16_to_float(np.array(out.get_tensor()))
+        hist, prob = output_hist(result)
+        self.assertTrue(
+            np.allclose(
+                hist, prob, rtol=0, atol=0.01), "hist: " + str(hist))
+
+
+class TestUniformRandomBatchSizeLikeOpBF16API(unittest.TestCase):
+    def test_attr_tensorlist_int32_API(self):
+        startup_program = fluid.Program()
+        train_program = fluid.Program()
+        with fluid.program_guard(train_program, startup_program):
+            input = fluid.data(name="input", shape=[1, 3], dtype='uint16')
+            out_1 = fluid.layers.uniform_random_batch_size_like(
+                input, [2, 4], dtype=np.uint16)  # out_1.shape=[1, 4]
+
+            place = fluid.CPUPlace()
+            exe = fluid.Executor(place)
+
+            exe.run(startup_program)
+            outs = exe.run(train_program, fetch_list=[out_1])
+
+
+if __name__ == "__main__":
+    from paddle import enable_static
+    enable_static()
+    unittest.main()

tools/static_mode_white_list.py

@@ -498,6 +498,7 @@ STATIC_MODE_TESTING_LIST = [
     'test_truncated_gaussian_random_op',
     'test_unbind_op',
     'test_unfold_op',
+    'test_uniform_random_bf16_op',
     'test_uniform_random_op',
     'test_unique',
     'test_unique_with_counts',