Files
openvino/model-optimizer/extensions/front/HSigmoid_fusion.py
iliya mironov ce19e1fb9a Add hsigmoid fusing for MO (#2750)
* Add hsigmoid fusing for MO

* Update Bom file

* Remove comments

* Refactoring hsigmoid fusion according to review

* Add div and mul patterns for hsigmoid fusion

* Refactoring code according to review

* Fix HSigmoid fusion transformation
2020-10-24 12:51:15 +03:00

182 lines
7.2 KiB
Python

"""
Copyright (C) 2018-2020 Intel Corporation
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.
"""
import numpy as np
from extensions.front.AttributedClampNormalizer import AttributedClampNormalizer
from extensions.ops.activation_ops import HSigmoid
from mo.front.common.replacement import FrontReplacementSubgraph
from mo.front.subgraph_matcher import SubgraphMatch
from mo.graph.graph import Graph, rename_nodes
from mo.utils.graph import Node
def replace_with_hsigmoid(graph: Graph, first_node: Node, last_node: Node):
# determine the input port of first and last nodes which gets the 'input' node output
add_input_port_idx = int(first_node.in_port(0).get_connection().get_source().node.soft_get('op') == 'Const')
last_node_name = last_node.soft_get('name', last_node.id)
hsigmoid = HSigmoid(graph, {}).create_node()
hsigmoid.in_port(0).connect(first_node.in_port(add_input_port_idx).get_source())
last_node.out_port(0).get_connection().set_source(hsigmoid.out_port(0))
rename_nodes([(last_node, last_node_name + '/TBR'), (hsigmoid, last_node_name)])
class HSigmoidWithClamp(FrontReplacementSubgraph):
"""
The transformation looks for the pattern with ReLU6 (Clamp) defining the HSigmoid function:
HSigmoid(x) = Relu6(x + 3.0) / 6.0.
"""
enabled = True
def run_after(self):
return [AttributedClampNormalizer]
def pattern(self):
return dict(
nodes=[
('input', dict()),
('add', dict(op='Add')),
('const_0', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 0.0, atol=1e-6))),
('const_3', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 3.0, atol=1e-6))),
('const_6', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 6.0, atol=1e-6))),
('const_1_6', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 1.0 / 6.0, atol=1e-6))),
('clamp', dict(op='Clamp')),
('mul_2', dict(op='Mul')),
],
edges=[
('input', 'add', {}),
('const_3', 'add', {}),
('add', 'clamp', {'in': 0}),
('const_0', 'clamp', {'in': 1}),
('const_6', 'clamp', {'in': 2}),
('clamp', 'mul_2', {}),
('const_1_6', 'mul_2', {}),
])
def replace_sub_graph(self, graph: Graph, match: [dict, SubgraphMatch]):
replace_with_hsigmoid(graph, match['add'], match['mul_2'])
class HSigmoidWithMinMax(FrontReplacementSubgraph):
"""
The transformation looks for the pattern with Min/Max defining the HSigmoid function:
HSigmoid(x) = Min(Max(x + 3.0, 0), 6.0) / 6.0.
"""
enabled = True
def run_after(self):
return [AttributedClampNormalizer]
def pattern(self):
return dict(
nodes=[
('input', dict()),
('add', dict(op='Add')),
('const_0', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 0.0, atol=1e-6))),
('const_3', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 3.0, atol=1e-6))),
('const_6', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 6.0, atol=1e-6))),
('const_1_6', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 1.0 / 6.0, atol=1e-6))),
('max', dict(op='Maximum')),
('min', dict(op='Minimum')),
('mul_2', dict(op='Mul')),
],
edges=[
('input', 'add', {'out': 0}),
('const_3', 'add', {}),
('add', 'max', {}),
('const_0', 'max', {}),
('max', 'min', {}),
('const_6', 'min', {}),
('min', 'mul_2', {}),
('const_1_6', 'mul_2', {}),
])
def replace_sub_graph(self, graph: Graph, match: [dict, SubgraphMatch]):
replace_with_hsigmoid(graph, match['add'], match['mul_2'])
class HSigmoidWithReluDiv(FrontReplacementSubgraph):
"""
The transformation looks for the pattern with Relu/Div defining the HSigmoid function:
HSigmoid(x) = Min(Relu(x + 3.0), 6.0) / 6.0
"""
enabled = True
def run_after(self):
return [AttributedClampNormalizer]
def pattern(self):
return dict(
nodes=[
('input', dict()),
('add_const', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 3.0, atol=1e-6))),
('add', dict(op='Add')),
('relu', dict(op='ReLU')),
('min_const', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 6.0, atol=1e-6))),
('min', dict(op='Minimum')),
('div_const', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 6.0, atol=1e-6))),
('div', dict(op='Div')),
],
edges=[
('input', 'add', {'out': 0}),
('add_const', 'add', {}),
('add', 'relu', {}),
('relu', 'min', {}),
('min_const', 'min', {}),
('min', 'div', {}),
('div_const', 'div', {}),
])
def replace_sub_graph(self, graph: Graph, match: [dict, SubgraphMatch]):
replace_with_hsigmoid(graph, match['add'], match['div'])
class HSigmoidWithReluMul(FrontReplacementSubgraph):
"""
The transformation looks for the pattern with Relu/Mul defining the HSigmoid function:
HSigmoid(x) = Min(Relu(x + 3.0), 6.0) * 1.0/6.0
"""
enabled = True
def run_after(self):
return [AttributedClampNormalizer]
def pattern(self):
return dict(
nodes=[
('input', dict()),
('add_const', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 3.0, atol=1e-6))),
('add', dict(op='Add')),
('relu', dict(op='ReLU')),
('min_const', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 6.0, atol=1e-6))),
('min', dict(op='Minimum')),
('mul_const', dict(op='Const', value=lambda v: v is not None and np.allclose(v, 1.0/6.0, atol=1e-6))),
('mul', dict(op='Mul')),
],
edges=[
('input', 'add', {'out': 0}),
('add_const', 'add', {}),
('add', 'relu', {}),
('relu', 'min', {}),
('min_const', 'min', {}),
('min', 'mul', {}),
('mul_const', 'mul', {}),
])
def replace_sub_graph(self, graph: Graph, match: [dict, SubgraphMatch]):
replace_with_hsigmoid(graph, match['add'], match['mul'])