forked from huawei/mindspore2022
41 lines
1.6 KiB
Python
41 lines
1.6 KiB
Python
# Copyright 2020-2021 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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"""generate json desc for GkDropout"""
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from ._utils import Expander, ExpanderInfoValidator as VLD
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@VLD.check_all_formats_same
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@VLD.check_attrs('keep_prob')
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class GkDropout(Expander):
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"""GkDropout expander"""
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def _expand(self, graph_builder):
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input_x, input_mask = self.inputs
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keep_prob = self.attrs['keep_prob']
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r_keep_prob = graph_builder.value(input_x.dtype, 1.0 / keep_prob)
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keep_prob = graph_builder.value(input_x.dtype, keep_prob)
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if input_mask.dtype != input_x.dtype:
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input_mask = graph_builder.emit('Cast', [input_mask], attrs={'dst_type': input_x.dtype})
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mask = graph_builder.emit('LessEqual', [input_mask, keep_prob]) # output is bool type
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mask = graph_builder.emit('Cast', [mask], attrs={'dst_type': input_x.dtype})
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# compute result
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result = graph_builder.emit('Mul', [r_keep_prob, input_x])
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result = graph_builder.emit('Mul', [result, mask])
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return result, mask
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