67 lines
2.9 KiB
Python
67 lines
2.9 KiB
Python
"""
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Copyright (C) 2020 Intel Corporation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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from mo.utils.error import FrameworkError, Error
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from mo.utils.utils import refer_to_faq_msg
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try:
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import mxnet
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except ImportError:
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raise Error('Module mxnet was not found. Please install appropriate version of mxnet via install_prerequisites '
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'script.' + refer_to_faq_msg(52))
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from extensions.load.loader import Loader
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from mo.front.common.register_custom_ops import update_extractors_with_extensions
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from mo.front.extractor import extract_node_attrs
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from mo.front.mxnet.extractor import mxnet_op_extractors, mxnet_op_extractor
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from mo.front.mxnet.loader import symbol2nx, load_symbol_def
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from mo.front.mxnet.nd_to_params import save_params_file
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from mo.graph.graph import Graph
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class MxNetLoader(Loader):
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enabled = True
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def load(self, graph: Graph):
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argv = graph.graph['cmd_params']
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try:
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model_nodes, model_params, model_name, iteration_number = load_symbol_def(argv.input_model,
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argv.input_symbol,
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argv.input,
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argv.nd_prefix_name,
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argv.pretrained_model_name,
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argv.legacy_mxnet_model)
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except (ValueError, mxnet.base.MXNetError) as e:
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raise FrameworkError(
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'The following error happened while loading mxnet model {}: {}. ' +
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refer_to_faq_msg(53),
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argv.input_model,
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str(e)
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) from e
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if argv.nd_prefix_name and argv.pretrained_model_name and argv.save_params_from_nd:
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save_params_file(model_name, model_params._arg_params, model_params._aux_params, iteration_number)
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update_extractors_with_extensions(mxnet_op_extractors)
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symbol2nx(graph, model_nodes, model_params, argv.input)
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graph.check_empty_graph('symbol2nx. It may happen due to problems with loaded model')
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graph.graph['layout'] = 'NCHW'
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graph.graph['fw'] = 'mxnet'
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graph.graph['feature_dim'] = 1 if graph.graph['layout'] == 'NCHW' else 3
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extract_node_attrs(graph, mxnet_op_extractor)
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