def _create_data_if_necessary(self):
if self.node.graph.stage == 'front':
raise Error("_create_data_if_necessary method is not applicable for front Graph phase!")
if self.type == 'in':
raise Error("_create_data_if_necessary method is not applicable for 'in' Port type!")
if self.idx not in self.node.out_nodes(control_flow=self.control_flow):
from mo.ops.op import Op
Op.create_data_node(self.node.graph, self.node, out_port=self.idx)
self.node['need_shape_inference'] = True
return self.node.out_node(self.idx, control_flow=self.control_flow)
def apply_mean_value(graph: Graph, input_node: Node,
node_mean_scale_values: dict):
if 'mean' in node_mean_scale_values and node_mean_scale_values[
'mean'] is not None:
if all([x == 0 for x in node_mean_scale_values['mean']]):
return
out_node = input_node.out_node()
if not input_node.has_valid('shape'):
raise Error("Node {} has not valid shape attribute".format(
input_node.id))
input_shape = input_node.shape
# Create Add node
graph.remove_edge(input_node.id, out_node.id)
value = np.array(node_mean_scale_values['mean']) * (-1)
add_node = Add(graph, dict(name="Add_"))
add_data = Op.create_input_data_node(graph, "data_add_",
np.array(value))
Op.expand_node_shape(add_data,
(len(input_shape) -
2 if graph.graph['layout'] == 'NCHW' else 0))
add_input = Op.create_data_node(graph, input_node,
{'shape': out_node.shape})
add_node.create_node_with_data(inputs=[add_input, add_data],
data_nodes=out_node)
def apply_scale(graph: Graph, input_node: Node,
node_mean_scale_values: dict):
if 'scale' in node_mean_scale_values and node_mean_scale_values[
'scale'] is not None:
if all([x == 1 for x in node_mean_scale_values['scale']]):
return
out_node = input_node.out_node()
if not input_node.has_valid('shape'):
raise Error("Node {} has not valid shape attribute".format(
input_node.id))
input_shape = input_node.shape
# Create Mul node
value = 1 / np.array(node_mean_scale_values['scale'])
graph.remove_edge(input_node.id, out_node.id)
mul_node = Mul(graph, dict(name="Mul_"))
mul_data = Op.create_input_data_node(graph, "data_mul_",
np.array(value))
Op.expand_node_shape(mul_data,
(len(input_shape) -
2 if graph.graph['layout'] == 'NCHW' else 0))
mul_input = Op.create_data_node(graph, input_node,
{'shape': out_node.shape})
mul_node.create_node_with_data(inputs=[mul_input, mul_data],
data_nodes=out_node)
def insert_node_with_data_after(self,
out,
new_op_class: callable,
op_after_params: dict = None):
"""
Inserts operation node with op_after_params and data node after current operation
:param out: output data node of current node
:param new_op_class: class of operation that will be inserted after current operation node
:param op_after_params: parameters to be added to operation that will be inserted after current operation
Before calling:
[...] -> Cur_Op -> Cur_Data -> [...]
After calling:
[...] -> Cur_Op -> Cur_Data -> New_Op_aft -> New_Data_aft(==out) -> [...]
[op_after_params]
"""
# we import it here because Op imports Node and unique_id from this file
from mo.ops.op import Op
graph = self.graph
node = Node(graph, self.node)
cls_name = new_op_class.op
op_after_params = {} if op_after_params is None else op_after_params
new_op_after = new_op_class(graph, op_after_params)
graph.remove_edge(node.id, out.id)
new_out = Op.create_data_node(graph, node)
node.infer(node)
new_op_after.create_node_with_data(
[new_out], {'name': node.name + cls_name + '/After'},
data_nodes=out)
def _scale_input_action_mul(graph: nx.MultiDiGraph, match: dict, scale: float):
assert (len(match['placeholder'].out_nodes()))
tinput = match['placeholder']
if not tinput.has_valid('shape'):
raise Error("Node {} has not valid shape attribute".format(tinput.id))
input_shape = tinput.shape
toutput = match['data']
# Create Mul node
value = np.array([1 / scale])
# Disconnect input with data node
graph.remove_edge(tinput.id, toutput.id)
# Create Mul node
mul_node = Mul(graph, dict(name="Mul1_"))
mul_data = Op.create_input_data_node(graph, "data_mul_scale_",
np.array(value))
Op.expand_node_shape(
mul_data,
len(input_shape) - 2 if graph.graph['layout'] == 'NCHW' else 0)
mul_input = Op.create_data_node(graph, tinput, {'shape': toutput.shape})
mul_node.create_node_with_data(inputs=[mul_input, mul_data],
data_nodes=toutput)
def insert_abs_max(self, model_graph, node, type_stat, node_name,
**kwargs):
axis_const = self.find_axis(node, kwargs.get('granularity'))
if isinstance(axis_const, str):
return (True, node.name)
abs_node = Abs(node.graph, {
"name": f'abs_{node_name}'
}).create_node_with_data([node.out_node(0)]).in_node(0)
max_op = create_op_node_with_second_input(
node.graph, ReduceMax, int64_array(axis_const),
dict(name=f'{type_stat}_{node_name}'))
if node.graph != model_graph:
Op.create_data_node(max_op.graph, max_op, {'shape': [1]})
max_op['fullname'] = reset_node_fullname(node.fullname, max_op.name)
abs_node.out_port(0).connect(max_op.in_port(0))
return self.insert_result(model_graph, node, max_op, type_stat)
def insert_reduce(self,
model_graph,
insert_op,
node,
granularity,
type_stat,
node_name,
axis=1):
axis_const = self.find_axis(node, granularity, axis)
if isinstance(axis_const, str):
return (True, node.name)
reduce_op = create_op_node_with_second_input(
node.graph, insert_op, int64_array(axis_const),
dict(name=f'{type_stat}_{node_name}'))
reduce_op['fullname'] = reset_node_fullname(node.fullname,
reduce_op.name)
if node.graph != model_graph:
Op.create_data_node(reduce_op.graph, reduce_op, {'shape': [1]})
node.out_port(0).connect(reduce_op.in_port(0))
return self.insert_result(model_graph, node, reduce_op, type_stat)
def replace_pattern(self, graph: Graph, match: dict):
if match['axis'].value is None or match['input'].shape is None:
return
dims = len(match['input'].shape)
ones = np.ones(dims, dtype=np.int64)
axis = np.array(match['axis'].value)
axis = axis if axis.ndim != 0 else np.array([axis], dtype=np.int64)
mean = graph.node[match['mean'].node]
mean['stride'] = np.array(ones)
# TODO: need to check axis with real layout
spatial_dims = np.array(axis)
mean['spatial_dims'] = spatial_dims
mean['pad'] = np.zeros((dims, 2), np.int64)
mean['pad_spatial_shape'] = np.array(mean['pad'][spatial_dims])
window = np.array(ones)
window[spatial_dims] = match['input'].shape[spatial_dims]
mean['window'] = window
mean['TF_op'] = mean['op']
mean['op'] = 'AvgPool'
mean['pool_method'] = 'avg'
mean['rounding_type'] = 'ceil'
mean['exclude_pad'] = 'true'
mean['kernel_spatial'] = window[spatial_dims]
graph.remove_edge(match['axis'].node, match['mean'].node)
mean['permute_attrs'] = PermuteAttrs().update_attrs(attrs=[(
'pad',
'input:0'), ('stride',
'input:0'), ('window',
'input:0'), ('spatial_dims', 'input:0')])
if match['mean'].keep_dims == False:
output = match['mean'].out_node()
pool_node = match['mean']
# Keep dims for AvgPool
shape = np.array(output.shape)
for idx in spatial_dims:
shape = np.insert(shape, idx, 1)
graph.remove_edge(pool_node.id, output.id)
# Create new data for pool with all dims
pool_data = Op.create_data_node(graph, pool_node,
{'shape': np.array(shape)})
# Create and connect reshape node
reshape_op = Reshape(graph, {'dim': np.array(output.shape)})
reshape_node = reshape_op.create_node(
[pool_data],
dict(name='Reshape_',
permute_attrs=PermuteAttrs().update_attrs(
attrs=[('dim', 'output:0')])))
graph.create_edge(reshape_node, output)
def replace_pattern(self, graph: Graph, match: dict):
"""
This pass normalize FC layer
Example:
(2,16,512)-->FC->(2,16,101) => (2,16,512)-->Reshape-->(32,512)-->FC-->(32,101)-->Reshape-->(2,16,101)
"""
fc = match['fc']
fc_weights = fc.in_node(1)
fc_output = match['fc_output']
fc_input = fc.in_node()
input_shape = fc.in_node().shape
if len(input_shape) <= 2 or np.prod(
fc_input.shape[1:]) == fc_weights.shape[
fc_weights.input_channel_dim]:
return
# Insert Reshape to normalize input for FC layer that should be in [N,C] layout
first_reshape_shape = np.array(
[np.prod(input_shape[0:-1]), input_shape[-1]], dtype=np.int64)
second_reshape_shape = np.array([*input_shape[0:-1], fc['out-size']],
dtype=np.int64)
fc_out_shape = np.array([np.prod(input_shape[0:-1]), fc['out-size']],
dtype=np.int64)
first_reshape = Reshape(graph, {'dim': np.array(first_reshape_shape)})
second_reshape = Reshape(graph,
{'dim': np.array(second_reshape_shape)})
input_edge_attrs = graph.get_edge_data(fc_input.id, fc.id)[0]
output_edge_attrs = graph.get_edge_data(fc.id, fc_output.id)[0]
graph.remove_edge(fc_input.id, fc.id)
graph.remove_edge(fc.id, fc_output.id)
# Insert Reshapes before and after FullyConnected layer
reshape_data = first_reshape.create_node_with_data(inputs=[fc_input])
graph.add_edge(reshape_data.id, fc.id, **input_edge_attrs)
new_fc_output = Op.create_data_node(graph,
fc, {'shape': fc_out_shape},
edge_attrs=output_edge_attrs)
second_reshape.create_node_with_data(inputs=[new_fc_output],
data_nodes=fc_output)
def insert_node_with_data_after(self,
out,
new_op_class: callable,
op_after_params: dict = None,
additional_inputs: list = None):
"""
Inserts operation node with op_after_params and data node after current operation
:param out: output data node of current node
:param new_op_class: class of operation that will be inserted after current operation node
:param op_after_params: parameters to be added to operation that will be inserted after current operation
:param additional_inputs: other parameters for a new operation node in addition to one that is created
at the 'out' placed; new nodes are added after 0-th input
TODO Allow indexing for input parameters as well as for 'out' data node to explicitly
specify ports that are connected to.
Before calling:
[...] -> Cur_Op -> Cur_Data -> [...]
After calling:
[...] -> Cur_Op -> Cur_Data -> New_Op_aft -> New_Data_aft(==out) -> [...]
[op_after_params]
"""
# we import it here because Op imports Node and unique_id from this file
from mo.ops.op import Op
graph = self.graph
node = Node(graph, self.node)
cls_name = new_op_class.op
op_after_params = {} if op_after_params is None else op_after_params
new_op_after = new_op_class(graph, op_after_params)
graph.remove_edge(node.id, out.id)
new_out = Op.create_data_node(graph, node)
node.infer(node)
# form a list of input nodes for a new op node combining new_out and additional_inputs
inputs = [new_out] + (additional_inputs if additional_inputs else [])
new_op_after.create_node_with_data(
inputs, {'name': node.name + cls_name + '/After'}, data_nodes=out)
def find_and_replace_pattern(self, graph: Graph):
for node in list(graph.nodes()):
node = Node(graph, node)
# Check that node layout mismatch with graph layout
# For example: NHWC and NCHW or NCDHW and NDHWC
if node.kind == 'op' and node.has_valid(
'layout') and node.layout != indices_mapping[len(
node.layout)][graph.graph['layout']]:
input = node.in_node()
output = node.out_node()
# Calculate permutation for further Transpose operations
if graph.graph['layout'] == 'NCHW':
# if Node has NCHW and graph has NHWC layout
permutation = PermuteAttrs.get_nhwc_to_nchw_permutation(
len(node.layout))
else:
# if Node has NHWC and graph has NCHW layout
permutation = PermuteAttrs.get_nchw_to_nhwc_permutation(
len(node.layout))
# Schematic representation of transformation below
#
# \ NCHW NCHW
# NHWC -- \ | permutation permutation |
# data-->Convolution(example)-->data -- / | | NCHW | |
# / data->Transpose->data->Convolution->data->Transpose->data
# 1. Insert input Transpose
# This Transpose will permute input from original input layout to operation layout
edge_attrs = graph.get_edge_data(input.id, node.id)[0]
graph.remove_edge(input.id, node.id)
input_order_const = Const(graph, {
'value': permutation.perm
}).create_node_with_data()
input_permute_op = Transpose(
graph, dict(name=node.name + '/Transpose_'))
input_permute_data_node = input_permute_op.create_node_with_data(
[input, input_order_const])
graph.add_edge(input_permute_data_node.id, node.id,
**edge_attrs)
# 2. Insert output Transpose
# This Transpose will permute output from operation layout to original input layout
edge_attrs = graph.get_edge_data(node.id, output.id)[0]
graph.remove_edge(node.id, output.id)
input_data_node = Op.create_data_node(
graph, node, {'shape': output.shape[permutation.perm]},
edge_attrs)
output_order_const = Const(graph, {
'value': permutation.inv
}).create_node_with_data()
output_permute_op = Transpose(
graph, dict(name=node.name +
'/Transpose_')).create_node_with_data(
[input_data_node, output_order_const],
data_nodes=output)
# 3. Add permutations for Node
# Here we use permutation mechanism where data nodes takes permutation attribute.
# And then we call permute_attrs method that permutes node attributes according to permutations on
# data nodes.
node.in_node()['permutation'] = permutation
node.out_node()['permutation'] = permutation
node.permute_attrs.permute_attrs(node)
node.in_node()['permutation'] = None
node.out_node()['permutation'] = None
