pytorch/caffe2/python/helpers/control_ops.py
Ilia Cherniavskii 79ac146808 Add if and while ops to brew
Summary:
Adding if and while control ops to brew, also adding unit tests
Note: unlike net_builder where we can figure which blobs are external and which ones are local to subnets, here in brew we need to use external_blobs param explicitly to point at external blobls

Reviewed By: harouwu

Differential Revision: D6440508

fbshipit-source-id: c920f0af84b77ccb2d8462ffc7567bb1908c844a
2017-12-05 17:33:34 -08:00

44 lines
1.4 KiB
Python

# Copyright (c) 2016-present, Facebook, Inc.
#
# 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.
##############################################################################
## @package control_ops
# Module caffe2.python.helpers.control_ops
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
from __future__ import unicode_literals
from caffe2.python.control_ops_util import add_if_op, add_while_op
def cond(model, cond_blob, external_blobs, then_model, else_model=None):
"""Condition"""
add_if_op(
model.net,
cond_blob,
external_blobs,
then_model.net,
else_model.net if else_model else None)
def loop(model, cond_blob, external_blobs, loop_model, cond_model=None):
"""Loop"""
add_while_op(
model.net,
cond_blob,
external_blobs,
loop_model.net,
cond_model.net if cond_model else None)