Files
openvino/model-optimizer/extensions/front/div.py
Evgeny Lazarev 970b1301b5 Cleanup IR v7 from the MO (#1008)
* Removed back phase transformations related to IRv7

* Fixed setting value for the input port using the 'set_value' method

* Removed front and middle phase transformations related to IRv7

* Cleanup the rest of the Model Optimizer transformations from IRv7 specific transformations

* Final cleanup of the deprecated IR v7 related code

* Removed 'blobs_as_input' usage in the Model Optimizer.

* Removed function '_fuse_add' from the Model Optimizer since it is not used anymore.

* Removed 'keep_in_IR' node attribute for FakeQuantize ops in the MO

* Disabled failing gpu_engine.user_context test
2020-06-22 11:52:00 +03:00

57 lines
2.3 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.ops.elementwise import Mul, Pow
from mo.front.common.replacement import FrontReplacementPattern
from mo.front.tf.graph_utils import create_op_with_const_inputs
from mo.graph.graph import Graph, Node, rename_node
class Div(FrontReplacementPattern):
# This transformation is called directly from the 'model-optimizer/extensions/middle/fusings.py' transformation
enabled = False
@staticmethod
def div_to_mul_replacement(div: Node):
# we execute this transformation for V10 IR later on middle phase despite graph_condition
# so we prevent Div replacement on shape-calculating sub-graphs
if div.in_port(0).data.get_value() is not None and div.in_port(1).data.get_value() is not None:
return
graph = div.graph
name = div.soft_get('name', div.id)
# keep Mul name the same as Div -- because of mathematical equality of output tensors
rename_node(node=div, name=name + '/to_be_removed')
# reconnect Div in(out)puts to Mul
mul = Mul(graph, {'name': name}).create_node()
rename_node(mul, name)
div.in_port(0).get_connection().set_destination(mul.in_port(0))
div.in_port(1).get_connection().set_destination(mul.in_port(1))
div.out_port(0).get_connection().set_source(mul.out_port(0))
# restore mathematical equivalence to Div operation: Div(A, B) = Mul(A, Pow(B, -1))
reciprocal = create_op_with_const_inputs(graph, Pow, {1: np.float64(-1)}, {'name': name + '/reciprocal_'})
mul.in_port(1).get_connection().insert_node(reciprocal)
def find_and_replace_pattern(self, graph: Graph):
for div in graph.get_op_nodes(op='Div'):
self.div_to_mul_replacement(div)