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March 17, 2019 07:38
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tensorflow convert savedmodel to checkpoint
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# Copyright 2017 The TensorFlow Authors. All Rights Reserved. | |
# | |
# 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. | |
# ================================ | |
"""Imports a protobuf model as a graph in Tensorboard.""" | |
from __future__ import absolute_import | |
from __future__ import division | |
from __future__ import print_function | |
import argparse | |
import sys | |
import tensorflow as tf | |
from tensorflow.core.framework import graph_pb2 | |
from tensorflow.python.client import session | |
from tensorflow.python.framework import importer | |
from tensorflow.python.framework import ops | |
from tensorflow.python.platform import app | |
from tensorflow.python.platform import gfile | |
from tensorflow.python.summary import summary | |
from tensorflow.core.protobuf import saved_model_pb2 | |
from tensorflow.python.util import compat | |
# Try importing TensorRT ops if available | |
# TODO(aaroey): ideally we should import everything from contrib, but currently | |
# tensorrt module would cause build errors when being imported in | |
# tensorflow/contrib/__init__.py. Fix it. | |
# pylint: disable=unused-import,g-import-not-at-top,wildcard-import | |
try: | |
from tensorflow.contrib.tensorrt.ops.gen_trt_engine_op import * | |
except ImportError: | |
pass | |
# pylint: enable=unused-import,g-import-not-at-top,wildcard-import | |
def import_to_tensorboard(model_dir, log_dir): | |
"""View an imported protobuf model (`.pb` file) as a graph in Tensorboard. | |
Args: | |
model_dir: The location of the protobuf (`pb`) model to visualize | |
log_dir: The location for the Tensorboard log to begin visualization from. | |
Usage: | |
Call this function with your model location and desired log directory. | |
Launch Tensorboard by pointing it to the log directory. | |
View your imported `.pb` model as a graph. | |
""" | |
with tf.Session() as sess: | |
with gfile.FastGFile(model_dir, 'rb') as f: | |
data = compat.as_bytes(f.read()) | |
sm = saved_model_pb2.SavedModel() | |
sm.ParseFromString(data) | |
# print(sm) | |
if 1 != len(sm.meta_graphs): | |
print('More than one graph found. Not sure which to write') | |
sys.exit(1) | |
tf.import_graph_def(sm.meta_graphs[0].graph_def, name='') | |
train_writer = tf.summary.FileWriter(log_dir) | |
train_writer.add_graph(sess.graph) | |
print("Model Imported. Visualize by running: " | |
"tensorboard --logdir={}".format(log_dir)) | |
def main(unused_args): | |
import_to_tensorboard(FLAGS.model_dir, FLAGS.log_dir) | |
if __name__ == "__main__": | |
parser = argparse.ArgumentParser() | |
parser.register("type", "bool", lambda v: v.lower() == "true") | |
parser.add_argument( | |
"--model_dir", | |
type=str, | |
default="", | |
required=True, | |
help="The location of the protobuf (\'pb\') model to visualize.") | |
parser.add_argument( | |
"--log_dir", | |
type=str, | |
default="", | |
required=True, | |
help="The location for the Tensorboard log to begin visualization from.") | |
FLAGS, unparsed = parser.parse_known_args() | |
app.run(main=main, argv=[sys.argv[0]] + unparsed) |
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