37 lines
1.5 KiB
Python
37 lines
1.5 KiB
Python
# Copyright (C) 2018-2021 Intel Corporation
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# SPDX-License-Identifier: Apache-2.0
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from mo.front.common.replacement import FrontReplacementSubgraph
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from mo.graph.graph import Graph
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from mo.ops.const import Const
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from mo.ops.squeeze import Squeeze
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class ArgMaxSqueeze(FrontReplacementSubgraph):
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"""
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In some frameworks ArgMax operation has keepdims attribute that indicates whether to stay a dimension along
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which maximum is computed or not. In case of keepdims=0 this dimension should be removed but ArgMax operation in
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IR format is not designed to cover this case. So we should additionally add Squeeze operation right after ArgMax
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for this case.
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"""
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op = "ArgMax"
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enabled = True
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def pattern(self):
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return dict(nodes=[('argmax', dict(op='ArgMax', keepdims=0))],
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edges=[])
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def replace_sub_graph(self, graph: Graph, match: dict):
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node = match['argmax']
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connected_ports = [port for port in node.in_ports().values() if not port.disconnected()]
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squeeze_node = Squeeze(graph, dict()).create_node([], dict(name=node.name + '/Squeeze'))
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if len(connected_ports) == 2:
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node.in_port(1).get_source().connect(squeeze_node.in_port(1))
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else:
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axis_node = Const(graph, {'value': node.axis}).create_node()
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squeeze_node.in_port(1).connect(axis_node.out_port(0))
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node.out_port(0).get_connection().set_source(squeeze_node.out_port(0))
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node.out_port(0).connect(squeeze_node.in_port(0))
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return []
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