def build_net(graph: Graph):
try:
if not hasattr(os.environ, 'GLOG_minloglevel'):
os.environ['GLOG_minloglevel'] = '2'
import caffe
log.info('Partial inference via the framework is available')
except ImportError:
log.warning(
'pyCaffe is not available. Partial inference via the framework is not '
+ 'possible')
return
try:
net = caffe.Net(graph.proto_path, graph.caffemodel_path, caffe.TEST)
except Exception as err:
raise Error(
'Error happened while constructing caffe.Net in the Caffe fallback function: {}. '
+ refer_to_faq_msg(12), str(err)) from err
inputs_node_name = find_inputs(graph)
reshape_flag = False
for i in inputs_node_name:
new_input_shape = graph.node[i]['shape'].astype(int)
top_node = get_node_top(graph, i)
caffe_shape = list(net.blobs[top_node].shape)
if not np.all(caffe_shape == new_input_shape):
net.blobs[top_node].reshape(*[int(x) for x in new_input_shape])
reshape_flag = True
if reshape_flag:
net.reshape()
try:
net.forward()
except KeyError as err:
log.error('Error happened in Caffe net.forward: {}.'.format(str(err)))
log.error(
'It may point to the known bug in pycaffe when top and name of the layer do not match.'
)
log.error('Please make sure that the latest pycaffe is used.')
raise Error(
'Cannot infer shapes due to exception in Caffe: {}. ' +
refer_to_faq_msg(13), str(err)) from err
except Exception as err:
raise Error(
'Cannot infer shapes in Caffe net.forward due to exception: {}.' +
refer_to_faq_msg(13), str(err)) from err
graph.__setattr__('caffe_net', net)
def load(self, graph: Graph):
argv = graph.graph['cmd_params']
model_proto = load_onnx_model(argv.input_model)
model_graph = model_proto.graph # pylint: disable=no-member
# print(model_graph)
# assert len(model_graph) == 1, "An ONNX model contains more than 1 graph: unsupported"
log.debug("Number of nodes in graph_def: {}".format(len(model_graph.node)))
log.debug("Number of all input ports (not true inputs) in graph_def: {}".format(len(model_graph.input)))
log.debug("Number of initializers in graph_def: {}".format(len(model_graph.initializer)))
log.debug(
"Number of real inputs in graph_def: {}".format(len(model_graph.input) - len(model_graph.initializer)))
update_extractors_with_extensions(onnx_op_extractors)
try:
protobuf2nx(graph, model_proto)
except Exception as e:
raise Error(
'Cannot pre-process ONNX graph after reading from model file "{}". ' \
'File is corrupt or has unsupported format. Details: {}. ' +
refer_to_faq_msg(44),
argv.input_model,
str(e)
) from e
log.debug("Number of nodes in NX graph: {}".format(graph.number_of_nodes()))
graph.__setattr__('name',
argv.model_name if argv.model_name else model_proto.graph.name) # pylint: disable=no-member
graph.graph['layout'] = 'NCHW'
graph.graph['fw'] = 'onnx'
graph.graph['feature_dim'] = 1
if hasattr(model_proto, 'opset_import'):
graph.graph['fw_opset_version'] = model_proto.opset_import[0].version # pylint: disable=no-member
else:
graph.graph['fw_opset_version'] = None
graph.check_empty_graph('protobuf2nx. It may happen due to problems with loaded model')
extract_node_attrs(graph, lambda node: onnx_op_extractor(node, check_for_duplicates(onnx_op_extractors)))
send_op_names_info('onnx', graph)
send_shapes_info('onnx', graph)
def load(self, graph: Graph):
argv = graph.graph['cmd_params']
caffe_pb2 = loader.import_caffe_pb2(argv.caffe_parser_path)
proto, model = loader.load_caffe_proto_model(caffe_pb2,
argv.input_proto,
argv.input_model)
update_extractors_with_extensions(
caffe_type_extractors, argv.disable_omitting_optional if hasattr(
argv, 'disable_omitting_optional') else False,
argv.disable_flattening_optional_params if hasattr(
argv, 'disable_flattening_optional_params') else False)
try:
original_shapes = loader.caffe_pb_to_nx(graph, proto, model)
except ValueError as e:
raise Error(
'Invalid prototxt file: value error {}. ' +
refer_to_faq_msg(11), str(e)) from e
graph.check_empty_graph('load_caffe_proto_model')
graph.__setattr__('proto_path', argv.input_proto)
graph.__setattr__('caffemodel_path', argv.input_model)
graph.__setattr__('name',
getattr(proto, 'name', None) or argv.model_name)
graph.graph['layout'] = 'NCHW'
graph.graph['fw'] = 'caffe'
graph.graph['original_shapes'] = original_shapes
graph.graph['caffe_pb2'] = caffe_pb2
custom_layers_map = custom_layers_mapping.load_layers_xml(argv.k)
custom_layers_mapping.update_extractors(
caffe_type_extractors, custom_layers_map,
argv.disable_omitting_optional if hasattr(
argv, 'disable_omitting_optional') else False,
argv.enable_flattening_nested_params if hasattr(
argv, 'enable_flattening_nested_params') else False)
extract_node_attrs(
graph, lambda node: caffe_extractor(
node, check_for_duplicates(caffe_type_extractors)))
send_op_names_info('caffe', graph)
send_shapes_info('caffe', graph)
def load(self, graph: Graph):
argv = graph.graph['cmd_params']
if argv.tensorflow_custom_layer_libraries:
libraries = argv.tensorflow_custom_layer_libraries.split(',')
for library in libraries:
log.info('Loading library "{}" with custom operations'.format(
library))
tf_v1.load_op_library(library)
graph_def, variables_values, framework, inputs_outputs_order = load_tf_graph_def(
graph_file_name=argv.input_model,
is_binary=not argv.input_model_is_text,
checkpoint=argv.input_checkpoint,
user_output_node_names_list=argv.output,
model_dir=argv.saved_model_dir,
meta_graph_file=argv.input_meta_graph,
saved_model_tags=argv.saved_model_tags)
if inputs_outputs_order is not None and isinstance(
inputs_outputs_order, tuple):
graph.inputs_order = inputs_outputs_order[0]
graph.outputs_order = inputs_outputs_order[1]
send_framework_info(framework)
try:
tf_v1.import_graph_def(graph_def, name='')
except:
log.warning(
"TensorFlow post-processing of loaded model was unsuccessful. "
"This is an optional step that Model Optimizer performs for any input model but it is not usually "
"required for all models. "
"It likely means that the original model is ill-formed. "
"Model Optimizer will continue converting this model.")
log.debug("Number of nodes in graph_def: {}".format(len(
graph_def.node))) # pylint: disable=no-member
if argv.tensorboard_logdir:
tensorboard_util.dump_for_tensorboard(graph_def,
argv.tensorboard_logdir)
update_extractors_with_extensions(tf_op_extractors)
try:
protobuf2nx(graph, graph_def)
except Exception as e:
raise Error(
'Cannot pre-process TensorFlow graph after reading from model file "{}". ' \
'File is corrupt or has unsupported format. Details: {}. ' +
refer_to_faq_msg(44),
argv.model_name,
str(e)
) from e
graph.__setattr__('name', argv.model_name)
# 'layout' parameter change may cause an issue in EltwiseInputReshape replacer
# and convert_nhwc_to_nchw(graph)
graph.graph['layout'] = 'NCHW' if argv.disable_nhwc_to_nchw else 'NHWC'
graph.graph['fw'] = 'tf'
graph.graph['variables_values'] = variables_values
del variables_values
used_tensors = restore_edges(graph, get_tf_edges)
# Tensor names information corresponding to a node is stored on outgoing edges.
# As output nodes do not have outgoing edges, fake outputs are required. In the following code
# for each output Identity node is added, and tensor name for the output is kept
# on (output, fake output) edge. After Result nodes adding transformation fake outputs
# are deleted from graph.
add_outputs_identity(
graph, graph.nodes - used_tensors,
lambda g, output, fake_node_name: g.add_edges_from(
[create_tf_edge(output, fake_node_name, 0)]))
remove_control_dependency_inputs(graph)
graph.check_empty_graph(
'protobuf2nx. It may happen due to problems with loaded model')
extract_node_attrs(
graph, lambda node: tf_op_extractor(
node, check_for_duplicates(tf_op_extractors)))
# try to detect layout from the nodes of the graph. If there are no convolution nodes in N(D)HWC layout then we
# consider that the graph is in NCHW layout and no layout conversion should be performed
if not argv.disable_nhwc_to_nchw and not graph_or_sub_graph_has_nhwc_ops(
graph):
if not argv.silent:
log.debug('disable_nhwc_to_nchw" was automatically enabled.')
for_graph_and_each_sub_graph_recursively(
graph, update_cmd_params_and_layout)
send_op_names_info(framework, graph)
send_shapes_info(framework, graph)
