Fix div 0 error of case11: paddle.nn.functional.max_pool1d/max_pool2d…

…/max_pool3d (#50010) * add stride check for MaxPool * add unittests
PaddlePaddle · Feb 1, 2023 · 3ab6faa · 3ab6faa
1 parent e4e94a8
commit 3ab6faa
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Showing 5 changed files with 47 additions and 1 deletion.
diff --git a/paddle/fluid/operators/pool_with_index_op.cc b/paddle/fluid/operators/pool_with_index_op.cc
@@ -27,6 +27,11 @@ inline int MaxPoolOutputSize(int input_size,
                              int filter_size,
                              int padding,
                              int stride) {
+  PADDLE_ENFORCE_NE(
+      stride,
+      0,
+      phi::errors::InvalidArgument(
+          "The stride of MaxPool shall not be 0, but received %d.", stride));
   int output_size = (input_size - filter_size + 2 * padding) / stride + 1;
   return output_size;
 }

diff --git a/paddle/phi/kernels/funcs/pooling.h b/paddle/phi/kernels/funcs/pooling.h
@@ -402,6 +402,11 @@ inline int MaxPoolOutputSize(int input_size,
                              int filter_size,
                              int padding,
                              int stride) {
+  PADDLE_ENFORCE_NE(
+      stride,
+      0,
+      phi::errors::InvalidArgument(
+          "The stride of MaxPool shall not be 0, but received %d.", stride));
   int output_size = (input_size - filter_size + 2 * padding) / stride + 1;
   return output_size;
 }

diff --git a/python/paddle/fluid/tests/unittests/test_pool1d_api.py b/python/paddle/fluid/tests/unittests/test_pool1d_api.py
@@ -274,7 +274,7 @@ def test_pool1d(self):
             self.check_max_dygraph_return_index_results(place)
 
 
-class TestPool2DError_API(unittest.TestCase):
+class TestPool1DError_API(unittest.TestCase):
     def test_error_api(self):
         def run1():
             with fluid.dygraph.guard():
@@ -417,6 +417,18 @@ def run_stride_out_of_range():
 
         self.assertRaises(ValueError, run_stride_out_of_range)
 
+        def run_zero_stride():
+            with fluid.dygraph.guard():
+                array = np.array([1], dtype=np.float32)
+                x = paddle.to_tensor(
+                    np.reshape(array, [1, 1, 1]), dtype='float32'
+                )
+                out = F.max_pool1d(
+                    x, 1, stride=0, padding=1, return_mask=True, ceil_mode=True
+                )
+
+        self.assertRaises(ValueError, run_zero_stride)
+
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/python/paddle/fluid/tests/unittests/test_pool2d_api.py b/python/paddle/fluid/tests/unittests/test_pool2d_api.py
@@ -597,6 +597,18 @@ def run_stride_out_of_range():
 
         self.assertRaises(ValueError, run_stride_out_of_range)
 
+        def run_zero_stride():
+            with fluid.dygraph.guard():
+                array = np.array([1], dtype=np.float32)
+                x = paddle.to_tensor(
+                    np.reshape(array, [1, 1, 1, 1]), dtype='float32'
+                )
+                out = max_pool2d(
+                    x, 1, stride=0, padding=1, return_mask=True, ceil_mode=True
+                )
+
+        self.assertRaises(ValueError, run_zero_stride)
+
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/python/paddle/fluid/tests/unittests/test_pool3d_api.py b/python/paddle/fluid/tests/unittests/test_pool3d_api.py
@@ -563,6 +563,18 @@ def run_size_out_of_range():
 
         self.assertRaises(ValueError, run_size_out_of_range)
 
+        def run_zero_stride():
+            with fluid.dygraph.guard():
+                array = np.array([1], dtype=np.float32)
+                x = paddle.to_tensor(
+                    np.reshape(array, [1, 1, 1, 1, 1]), dtype='float32'
+                )
+                out = max_pool3d(
+                    x, 1, stride=0, padding=1, return_mask=True, ceil_mode=True
+                )
+
+        self.assertRaises(ValueError, run_zero_stride)
+
 
 if __name__ == '__main__':
     unittest.main()