From 323d4233f3cb0f72ddac36977941e84880a7eedc Mon Sep 17 00:00:00 2001
From: zchen0211 <chenzhuoyuan07@gmail.com>
Date: Tue, 15 Aug 2017 23:50:56 +0000
Subject: [PATCH] gather op added with python unittest

---
 paddle/operators/gather_op.cu                 | 20 ++++++++++++++++
 .../v2/framework/tests/test_gather_op.py      | 23 +++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 paddle/operators/gather_op.cu
 create mode 100644 python/paddle/v2/framework/tests/test_gather_op.py

diff --git a/paddle/operators/gather_op.cu b/paddle/operators/gather_op.cu
new file mode 100644
index 00000000000..3f04a7b3f81
--- /dev/null
+++ b/paddle/operators/gather_op.cu
@@ -0,0 +1,20 @@
+/* Copyright (c) 2016 PaddlePaddle Authors. All Rights Reserve.
+
+   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. */
+
+#define EIGEN_USE_GPU
+#include "paddle/operators/gather_op.h"
+
+namespace ops = paddle::operators;
+REGISTER_OP_GPU_KERNEL(gather,
+                       ops::GatherOpKernel<paddle::platform::GPUPlace, float>);
diff --git a/python/paddle/v2/framework/tests/test_gather_op.py b/python/paddle/v2/framework/tests/test_gather_op.py
new file mode 100644
index 00000000000..2ffbf172365
--- /dev/null
+++ b/python/paddle/v2/framework/tests/test_gather_op.py
@@ -0,0 +1,23 @@
+import unittest
+
+import numpy
+import paddle.v2.framework.core as core
+from paddle.v2.framework.op import Operator
+
+from op_test_util import OpTestMeta
+
+
+class TestGatherOp(unittest.TestCase):
+    __metaclass__ = OpTestMeta
+
+    def setUp(self):
+        self.type = "gather"
+        self.inputs = {
+            'X': numpy.random.random((10, 20)).astype("float32"),
+            'Index': numpy.array([1, 3, 5]).astype("int")
+        }
+        self.outputs = {'Y': self.input['X'][self.input['Index']]}
+
+
+if __name__ == "__main__":
+    unittest.main()
-- 
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