[OpAttr]Fix dropout2d/3d static API (#46433)

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

@@ -1112,16 +1112,18 @@ class TestDropoutBackward(unittest.TestCase):
 class TestDropOutWithProbTensor(unittest.TestCase):
 
     def setUp(self):
-        shapes = [[10, 10], [10, 10, 10], [10, 10, 10, 10]]
-        self.inputs = [
-            np.random.random(shape).astype("float32") for shape in shapes
-        ]
+        self.init_info()
+        self.input = np.random.random(self.shape).astype("float32")
         self.place = paddle.CUDAPlace(
             0) if paddle.is_compiled_with_cuda() else paddle.CPUPlace()
 
+    def init_info(self):
+        self.shape = [10, 10]
+        self.api = paddle.nn.functional.dropout
+
     def api_case(self, x):
         p = paddle.assign([0.5])
-        out = paddle.nn.functional.dropout(x=x, p=p, training=True)
+        out = self.api(x=x, p=p, training=True)
         return out
 
     def run_static(self, x):
@@ -1131,6 +1133,8 @@ class TestDropOutWithProbTensor(unittest.TestCase):
         with program_guard(main_program):
             input = paddle.static.data(shape=x.shape, name='x', dtype='float32')
             out = self.api_case(input)
+            sgd = paddle.optimizer.SGD(learning_rate=0.1)
+            sgd.minimize(paddle.mean(out))
 
             exe = paddle.static.Executor(self.place)
             res = exe.run(feed={'x': x}, fetch_list=[out])
@@ -1144,10 +1148,23 @@ class TestDropOutWithProbTensor(unittest.TestCase):
         return out
 
     def test_p_tensor(self):
-        for x in self.inputs:
-            static_res = self.run_static(x)
-            dygraph_res = self.run_dygraph(x)
-            np.testing.assert_array_equal(static_res, dygraph_res)
+        static_res = self.run_static(self.input)
+        dygraph_res = self.run_dygraph(self.input)
+        np.testing.assert_array_equal(static_res, dygraph_res)
+
+
+class TestDropOut2DWithProbTensor(TestDropOutWithProbTensor):
+
+    def init_info(self):
+        self.shape = [2, 3, 10, 10]
+        self.api = paddle.nn.functional.dropout2d
+
+
+class TestDropOut3DWithProbTensor(TestDropOutWithProbTensor):
+
+    def init_info(self):
+        self.shape = [2, 3, 8, 8, 8]
+        self.api = paddle.nn.functional.dropout3d
 
 
 class TestRandomValue(unittest.TestCase):

python/paddle/nn/functional/common.py

@@ -1119,7 +1119,7 @@ def dropout(x,
         dtype = x.dtype
         keep_prob = 1 - p
         if training:
-            if p == 1.:
+            if in_dynamic_mode() and p == 1.:
                 return paddle.scale(x, scale=0.)
 
             scale_input = paddle.scale(