48 lines
1.8 KiB
Python
48 lines
1.8 KiB
Python
# Copyright (C) 2018-2021 Intel Corporation
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# SPDX-License-Identifier: Apache-2.0
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from extensions.middle.LayoutChangeForConstantShapePaths import LayoutChangeForConstantShapePaths
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from mo.graph.graph import Graph
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from mo.middle.replacement import MiddleReplacementPattern
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from mo.ops.op import PermuteAttrs
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class ApplyNHWCtoNCHWpermutation(MiddleReplacementPattern):
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enabled = True
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graph_condition = [lambda graph: graph.graph['layout'] == 'NHWC']
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def run_after(self):
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return [LayoutChangeForConstantShapePaths]
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def run_before(self):
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return []
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def find_and_replace_pattern(self, graph: Graph):
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for node in graph.get_data_nodes():
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if node.has_and_set('nchw_layout'):
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continue
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# Get NHWC to NCHW permutation for N dims, where N = len(node.shape)
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permutation = PermuteAttrs().get_nhwc_to_nchw_permutation(len(node.shape))
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# Check that data node already has permutation
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skip_permutation = False
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for in_node in node.in_nodes():
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edge_attrs = node.graph.get_edge_data(in_node.id, node.id)[0]
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if 'permutation' in edge_attrs:
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skip_permutation = True
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for out_node in node.out_nodes():
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edge_attrs = node.graph.get_edge_data(node.id, out_node.id)[0]
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if 'permutation' in edge_attrs:
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skip_permutation = True
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if skip_permutation:
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continue
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# Set permutation to all in/out edges
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for in_node in node.in_nodes():
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PermuteAttrs.set_permutation(in_node, node, permutation)
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for out_node in node.out_nodes():
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PermuteAttrs.set_permutation(node, out_node, permutation)
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