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- # Copyright 2020-2021 Huawei Technologies Co., Ltd
- #
- # 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.
- # ===========================================================================
- """generate json desc for Tile"""
- from mindspore._extends.graph_kernel.model.model import GraphKernelUnsupportedException as GKException
- from mindspore._extends.graph_kernel.model.model import DataFormat as DF
- from ._utils import Expander, ExpanderInfoValidator as VLD
-
-
- @VLD.add_format(DF.DEFAULT)
- @VLD.check_attrs('multiples')
- class Tile(Expander):
- """Tile expander"""
-
- def _get_output_shape(self):
- """Get output shape"""
- shape = self.inputs[0].shape
- multiples = self.attrs["multiples"]
-
- shape = list(shape)
- multiples = list(multiples)
- diff_len = len(multiples) - len(shape)
- if diff_len < 0:
- raise GKException("Dimensions of multiples{} < dimensions of input{} in Tile".format(multiples, shape))
- if diff_len > 0:
- for _ in range(diff_len):
- shape.insert(0, 1)
-
- output_shape = []
-
- for sh, mul in list(zip(shape, multiples)):
- if sh != 1 and mul != 1:
- raise GKException("Tile op in expander only Support Automatic Broadcast!")
- dim = sh * mul
- output_shape.append(dim)
- return output_shape
-
- def _expand(self, graph_builder):
- input_x = self.inputs[0]
- output_shape = self._get_output_shape()
-
- result = graph_builder.emit('BroadcastTo', [input_x], attrs={'shape': output_shape})
- return result
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