joddiy commented on a change in pull request #483: SINGA-474 identity operator
URL: https://github.com/apache/incubator-singa/pull/483#discussion_r309664758
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File path: test/python/test_operation.py
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@@ -322,6 +322,27 @@ def test_LeakyRelu(self):
np.testing.assert_array_almost_equal(tensor.to_numpy(result), XT)
self.check_shape(dx.shape(), (3, 2))
+ def test_Identity_cpu(self):
+ x = np.array([-0.9, -0.3, -0.1, 0.1, 0.5, 0.9]).reshape(3,
2).astype(np.float32)
+ y = x.copy()
+ x = tensor.from_numpy(x)
+ x.to_device(cpu_dev)
+ result = autograd.identity(x)
+ dx = result.creator.backward(x.data)
+
+ np.testing.assert_array_almost_equal(tensor.to_numpy(result), y,
decimal=5)
+ self.check_shape(dx.shape(), (3, 2))
+ def test_Identity_gpu(self):
+ x = np.array([-0.9, -0.3, -0.1, 0.1, 0.5, 0.9]).reshape(3,
2).astype(np.float32)
+ y = x.copy()
+ x = tensor.from_numpy(x)
+ x.to_device(gpu_dev)
+
+ result = autograd.identity(x)
+ dx = result.creator.backward(x.data)
+
+ np.testing.assert_array_almost_equal(tensor.to_numpy(result), y,
decimal=5)
Review comment:
please add the test case of backward propagation.
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