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48 lines
1.6 KiB
48 lines
1.6 KiB
# Copyright 2020 Huawei Technologies Co., Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# ============================================================================
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import numpy as np
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import pytest
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import mindspore.context as context
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from mindspore.common.tensor import Tensor
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from mindspore.nn import Cell
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from mindspore.ops import operations as P
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class Net(Cell):
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def __init__(self, axis=0, epsilon=1e-4):
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super(Net, self).__init__()
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self.norm = P.L2Normalize(axis=axis, epsilon=epsilon)
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def construct(self, x):
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return self.norm(x)
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@pytest.mark.level0
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@pytest.mark.platform_x86_gpu_training
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@pytest.mark.env_onecard
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def test_l2normalize():
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x = np.random.randint(1, 10, (2, 3, 4, 4)).astype(np.float32)
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expect = x / np.sqrt(np.sum(x**2, axis=0, keepdims=True))
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x = Tensor(x)
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error = np.ones(shape=[2, 3, 4, 4]) * 1.0e-5
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context.set_context(mode=context.GRAPH_MODE, device_target="GPU")
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norm_op = Net(axis=0)
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output = norm_op(x)
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diff = output.asnumpy() - expect
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assert np.all(diff < error)
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assert np.all(-diff < error)
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