313 lines
13 KiB
Python
313 lines
13 KiB
Python
# Copyright (C) 2018-2021 Intel Corporation
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# SPDX-License-Identifier: Apache-2.0
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from collections import namedtuple
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from copy import deepcopy
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from mo.utils.error import Error
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class Connection:
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def __init__(self, graph, source, destinations: list, control_flow=False):
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self.graph = graph
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self.source = source
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self.destinations = destinations
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self.control_flow = control_flow
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self.data = namedtuple('Data', ['get_value', 'get_shape'])
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self.data.get_value = self._get_value
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self.data.get_shape = self._get_shape
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def _get_value(self):
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if self.graph.stage == 'front':
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return None
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return self.source.node.out_node(self.source.idx, control_flow=self.control_flow).value
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def _get_shape(self):
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if self.graph.stage == 'front':
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return None
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return self.source.node.out_node(self.source.idx, control_flow=self.control_flow).shape
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@staticmethod
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def _get_new_tensor_debug_info(attributes_save_mode: str, source_attrs: dict, dest_attrs: dict):
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source_debug_info = []
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attr_name = 'fw_tensor_debug_info'
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if attr_name in source_attrs:
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source_debug_info = source_attrs[attr_name]
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dest_debug_info = []
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if attr_name in dest_attrs:
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dest_debug_info = dest_attrs[attr_name]
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if attributes_save_mode == "merge":
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return source_debug_info + dest_debug_info
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elif attributes_save_mode == "source":
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return source_debug_info
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else:
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return dest_debug_info
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@staticmethod
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def _update_tensor_debug_info(attrs: dict, new_value: list):
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if new_value is not None and len(new_value) > 0:
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attrs['fw_tensor_debug_info'] = new_value
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else:
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if 'fw_tensor_debug_info' in attrs:
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del attrs['fw_tensor_debug_info']
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def get_source(self):
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return self.source
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def get_destination(self):
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if self.destinations and len(self.destinations) > 1:
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raise Error("Connection has more than one destination: {}".format(len(self.destinations)))
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return self.destinations[0] if self.destinations else None
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def get_destinations(self):
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return self.destinations
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def set_source(self, port, attributes_save_mode: str = "merge"):
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# In this method we are changing source for a connection with given port.
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# See detailed example below.
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#
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# SOURCE - Op1(out_port:0)
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#
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# | Op4(in_port:0)
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# DESTINATIONS - | Op3(in_port:0)
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# | Op2(in_port:0)
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#
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# NEW PORT - Op5(out_port:0)
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#
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# ,--->Op4(in_port:0)
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# CONNECTION ,--->Op3(in_port:0)
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# Op1(out_port:0)--->Op2(in_port:0)
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#
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# When we set source for connection we disconnect existing source and reconnect all consumers to
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# the new given port with type='out'.
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#
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# UPDATED CONNECTION ,--->Op4(in_port:0)
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# ,--->Op3(in_port:0)
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# Op5(out_port:0)--->Op2(in_port:0)
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#
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# attributes_save_mode defines which attributes with tensor debug information should be
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# transferred to resulting connection.
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# 'source' - attributes are transferred from the outgoing edge (front phase) or
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# outgoing data node (middle/back phase) of the source of resulting connection.
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# 'dest' - attributes are transferred from the incoming edge (front phase) or
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# incoming data node (middle/back phase) of the destination of resulting connection.
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# 'merge' - attributes from source and destination are merged.
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if port.type == 'in':
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raise Error("Wrong port type in set_source method. Should be 'out' but given 'in'")
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if self.control_flow is True:
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raise Error("Cannot operate with connection with control_flow=True")
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if self.graph.stage == 'front':
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scr_node = port.node
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source_fw_names = []
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for dst_port in port.get_connection().destinations:
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edge_attrs, u, v, key = dst_port.get_in_edge_attrs(data=True)
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for attr in edge_attrs:
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if attr == "fw_tensor_debug_info":
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source_fw_names += edge_attrs[attr]
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# remove duplicates
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source_fw_names = list(set(source_fw_names))
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if not source_fw_names:
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attrs = {}
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else:
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attrs = {'fw_tensor_debug_info': source_fw_names}
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# Reconnecting all destinations as consumers to the source port preserving edge attrs
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for dst_port in self.destinations:
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edge_attrs, u, v, key = dst_port.get_in_edge_attrs(data=True)
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if u is not None:
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edge_attrs['out'] = port.idx
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new_tensor_info = self._get_new_tensor_debug_info(attributes_save_mode, attrs, edge_attrs)
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self._update_tensor_debug_info(edge_attrs, new_tensor_info)
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self.graph.remove_edge(u, v, key=key)
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self.graph.add_edge(scr_node.id, v, **edge_attrs)
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else:
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if attributes_save_mode == "dest":
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attrs = {}
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self.graph.create_edge(scr_node, dst_port.node, port.idx, dst_port.idx, edge_attrs=attrs)
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else:
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# Create out data node if not exists and mark node with need_shape_inference = True
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# In case if data node exists just use it.
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port._create_data_if_necessary()
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port_out_data = port.node.out_node(port.idx)
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attrs = {}
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if self.source is not None and self.source.idx in self.source.node.out_nodes():
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source_out_data = self.source.node.out_node(self.source.idx)
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# Copy attrs from source_out_data to port_out_data
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attrs = deepcopy(source_out_data.attrs())
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if attributes_save_mode != "source":
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# Remove debug info
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if 'fw_tensor_debug_info' in source_out_data.attrs():
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del self.graph.node[source_out_data.id]['fw_tensor_debug_info']
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# Copy attrs to new data node
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for attr in attrs:
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if attr != 'fw_tensor_debug_info':
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port_out_data[attr] = attrs[attr]
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new_tensor_info = self._get_new_tensor_debug_info(attributes_save_mode, port_out_data.attrs(), attrs)
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self._update_tensor_debug_info(port_out_data.attrs(), new_tensor_info)
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for dst_port in self.destinations:
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edge_attrs, u, v, key = dst_port.get_in_edge_attrs(data=True)
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if u is not None:
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self.graph.remove_edge(u, v, key=key)
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self.graph.add_edge(port_out_data.id, v, **edge_attrs)
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else:
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self.graph.add_edge(port_out_data.id, dst_port.node.id, **{'in': dst_port.idx})
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def set_destination(self, port, attributes_save_mode: str = "merge"):
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# In this method we are changing destination for a connection with given port with type 'in'.
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# This method requires exactly one destination or empty destinations list.
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# See detailed example below.
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#
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# SOURCE - Op1(out_port:0)
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#
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# DESTINATIONS - Op2(in_port:0)
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#
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# NEW PORT - Op3(in_port:0)
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#
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# CONNECTION
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# Op1(out_port:0)--->Op2(in_port:0)
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#
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# When we set destination for connection we disconnect destination port if exists and connect source to
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# the new given port with type='in'.
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#
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# UPDATED CONNECTION
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#
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# Op1(out_port:0)--->Op3(in_port:0)
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#
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# attributes_save_mode defines which attributes with tensor debug information should be
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# transferred to resulting connection.
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# 'source' - attributes are transferred from the outgoing edge (front phase) or
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# outgoing data node (middle/back phase) of the source of resulting connection.
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# 'dest' - attributes are transferred from the incoming edge (front phase) or
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# incoming data node (middle/back phase) of the destination of resulting connection.
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# 'merge' - attributes from source and destination are merged.
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def check_and_remove_edge():
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if self.destinations:
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for destination in self.destinations:
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edge_attrs, u, v, key = destination.get_in_edge_attrs(data=True)
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if u is None:
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raise Error(
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"Broken Connection object! Destination (node:{}) is not connected to source.".format(
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destination.node.name))
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destination.disconnect()
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return edge_attrs, key
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return {}, None
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if self.destinations and len(self.destinations) > 1:
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raise Error("set_destination applicable only for connections that has exactly one destination or "
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"when there is no destinations")
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if port.type == 'out':
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raise Error("Wrong port type in set_destination method. Should be 'in' but given 'out'")
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if self.control_flow is True:
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raise Error("Cannot operate with connection with control_flow=True")
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if self.graph.stage == 'front':
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if self.source is not None:
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node = self.source.node
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source_attrs, _ = check_and_remove_edge()
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dest_attrs = port.get_in_edge_attrs() or {}
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edge_attrs = {}
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new_tensor_info = self._get_new_tensor_debug_info(attributes_save_mode, source_attrs, dest_attrs)
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self._update_tensor_debug_info(edge_attrs, new_tensor_info)
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self.graph.create_edge(node, port.node, out_port=self.source.idx, in_port=port.idx,
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edge_attrs=edge_attrs)
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self.destinations = [port]
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else:
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# create out node if not exists and mark node with need_shape_inference = True
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# in case if data node exists just use it as is
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if self.source is not None:
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data_node = self.source._create_data_if_necessary()
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edge_attrs, key = check_and_remove_edge()
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edge_attrs.update({'in': port.idx})
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dest_attrs = {}
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if port.idx in port.node.in_nodes():
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dest_attrs = port.node.in_node(port.idx).attrs()
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new_tensor_info = self._get_new_tensor_debug_info(attributes_save_mode, data_node.attrs(), dest_attrs)
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self._update_tensor_debug_info(data_node.attrs(), new_tensor_info)
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self.graph.add_edge(data_node.id, port.node.id, key=key, **edge_attrs)
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self.destinations = [port]
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def add_destination(self, port):
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# In this method we are adding destination port with type 'in' for a connection.
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# See detailed example below.
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#
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# SOURCE - Op1(out_port:0)
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#
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# DESTINATIONS - Op2(in_port:0)
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#
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# NEW PORT - Op3(in_port:0)
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#
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# CONNECTION
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# Op1(out_port:0)--->Op2(in_port:0)
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#
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# When we set destination for connection we disconnect destination port if exists and connect source to
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# the new given port with type='in'.
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#
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# UPDATED CONNECTION
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# ,-->Op3(in_port:0)
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# Op1(out_port:0)--->Op2(in_port:0)
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#
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if self.control_flow is True:
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raise Error("Cannot operate with connection with control_flow=True")
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if self.source is None:
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raise Error("Can not add destination for connection without source port!")
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if self.graph.stage == 'front':
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node = self.source.node
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self.graph.create_edge(node, port.node, out_port=self.source.idx, in_port=port.idx)
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else:
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data_node = self.source._create_data_if_necessary()
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self.graph.add_edge(data_node.id, port.node.id, **{'in': port.idx})
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self.destinations.append(port)
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def remove(self):
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# This method deletes all edges in connection. After that connection is not more accessible.
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# See detailed example below.
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#
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# SOURCE - Op1(out_port:0)
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#
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# | Op4(in_port:0)
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# DESTINATIONS - | Op3(in_port:0)
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# | Op2(in_port:0)
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#
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# ,--->Op4(in_port:0)
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# CONNECTION ,--->Op3(in_port:0)
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# Op1(out_port:0)--->Op2(in_port:0)
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#
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# After removing edges connection will be empty
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#
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# REMOVED CONNECTION
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# Op5(out_port:0) Op4(in_port:0) Op2(in_port:0) Op3(in_port:0)
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#
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if self.destinations:
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for dst_port in self.destinations:
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dst_port.disconnect()
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self.source = None
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self.destinations = []
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def insert_node(self, new_node):
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assert len(new_node.out_ports()) == 1, 'The node {} has several output ports'.format(new_node.soft_get('name'))
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source_port = self.get_source()
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self.set_source(new_node.out_port(0))
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source_port.connect(new_node.in_port(0))
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