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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.
# ==============================================================================
"""Generate tensorflow graphs for testing tfcompile."""
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import argparse
import sys
from tensorflow.core.protobuf import saver_pb2
from tensorflow.python.client import session
from tensorflow.python.framework import constant_op
from tensorflow.python.framework import dtypes
from tensorflow.python.framework import function
from tensorflow.python.framework import ops
from tensorflow.python.ops import array_ops
from tensorflow.python.ops import math_ops
from tensorflow.python.ops import variables
from tensorflow.python.platform import app
from tensorflow.python.training import saver as saver_lib
FLAGS = None
def tfadd(_):
x = constant_op.constant([1], name='x_const')
y = constant_op.constant([2], name='y_const')
math_ops.add(x, y, name='x_y_sum')
def tfadd_with_ckpt(out_dir):
x = array_ops.placeholder(dtypes.int32, name='x_hold')
y = variables.Variable(constant_op.constant([0]), name='y_saved')
math_ops.add(x, y, name='x_y_sum')
init_op = variables.initialize_all_variables()
saver = saver_lib.Saver(write_version=saver_pb2.SaverDef.V1)
with session.Session() as sess:
sess.run(init_op)
sess.run(y.assign(y + 42))
# Without the checkpoint, the variable won't be set to 42.
ckpt = '%s/test_graph_tfadd_with_ckpt.ckpt' % out_dir
saver.save(sess, ckpt)
def tfadd_with_ckpt_saver(out_dir):
x = array_ops.placeholder(dtypes.int32, name='x_hold')
y = variables.Variable(constant_op.constant([0]), name='y_saved')
math_ops.add(x, y, name='x_y_sum')
init_op = variables.initialize_all_variables()
saver = saver_lib.Saver(name='abcprefix', write_version=saver_pb2.SaverDef.V1)
with session.Session() as sess:
sess.run(init_op)
sess.run(y.assign(y + 42))
# Without the checkpoint, the variable won't be set to 42.
ckpt_file = '%s/test_graph_tfadd_with_ckpt_saver.ckpt' % out_dir
saver.save(sess, ckpt_file)
# Without the SaverDef, the restore op won't be named correctly.
saver_file = '%s/test_graph_tfadd_with_ckpt_saver.saver' % out_dir
with open(saver_file, 'wb') as f:
f.write(saver.as_saver_def().SerializeToString())
def tfgather(_):
params = array_ops.placeholder(dtypes.float32, name='params')
indices = array_ops.placeholder(dtypes.int32, name='indices')
array_ops.gather(params, indices, name='gather_output')
def tfmatmul(_):
x = array_ops.placeholder(dtypes.float32, name='x_hold')
y = array_ops.placeholder(dtypes.float32, name='y_hold')
math_ops.matmul(x, y, name='x_y_prod')
def tfmatmulandadd(_):
# This tests multiple outputs.
x = array_ops.placeholder(dtypes.float32, name='x_hold')
y = array_ops.placeholder(dtypes.float32, name='y_hold')
math_ops.matmul(x, y, name='x_y_prod')
math_ops.add(x, y, name='x_y_sum')
def tffunction(_):
@function.Defun(dtypes.int32, dtypes.int32)
def test_func(a, b):
return a + b
x = constant_op.constant([1], name='x_const')
y = constant_op.constant([2], name='y_const')
test_func(x, y, name='func_call') # pylint: disable=unexpected-keyword-arg
def write_graph(build_graph, out_dir):
"""Build a graph using build_graph and write it out."""
g = ops.Graph()
with g.as_default():
build_graph(out_dir)
filename = '%s/test_graph_%s.pb' % (out_dir, build_graph.__name__)
with open(filename, 'wb') as f:
f.write(g.as_graph_def().SerializeToString())
def main(_):
write_graph(tfadd, FLAGS.out_dir)
write_graph(tfadd_with_ckpt, FLAGS.out_dir)
write_graph(tfadd_with_ckpt_saver, FLAGS.out_dir)
write_graph(tfgather, FLAGS.out_dir)
write_graph(tfmatmul, FLAGS.out_dir)
write_graph(tfmatmulandadd, FLAGS.out_dir)
write_graph(tffunction, FLAGS.out_dir)
if __name__ == '__main__':
parser = argparse.ArgumentParser()
parser.register('type', 'bool', lambda v: v.lower() == 'true')
parser.add_argument(
'--out_dir',
type=str,
default='',
help='Output directory for graphs, checkpoints and savers.')
FLAGS, unparsed = parser.parse_known_args()
app.run(main=main, argv=[sys.argv[0]] + unparsed)
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