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Flex-Convolution/user_ops/test_flex_convolution_transpose.py

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Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright 2017 ComputerGraphics Tuebingen. 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.
# ==============================================================================
# Authors: Fabian Groh, Patrick Wieschollek, Hendrik P.A. Lensch
from misc import FakePointCloud, VerboseTestCase
import tensorflow as tf
import numpy as np
from __init__ import flex_convolution_transpose
case = FakePointCloud(B=2, N=32, K=4, Din=2, Dout=6, Dp=3)
class FlexConvTest(VerboseTestCase):
def __init__(self, methodName="runTest"):
super(FlexConvTest, self).__init__(methodName)
def _forward(self, use_gpu=False, force_gpu=False):
case.init_ops()
with self.test_session(use_gpu=use_gpu, force_gpu=use_gpu) as sess:
actual_op = flex_convolution_transpose(case.features_op,
case.position_op,
case.neighborhood_op,
case.theta_op, case.bias_op)
actual = sess.run(actual_op)
return actual
def test_forward(self):
cpu = self._forward(use_gpu=False)
gpu = self._forward(use_gpu=True)
self.assertAllClose(cpu, gpu, 1e-4)
def _backward_features(self, use_gpu=False, dtype=np.float32, numdiff=True):
case.init_ops(dtype=dtype)
with self.test_session(use_gpu=use_gpu, force_gpu=use_gpu) as sess:
actual_op = flex_convolution_transpose(case.features_op,
case.position_op,
case.neighborhood_op,
case.theta_op, case.bias_op)
if numdiff:
return tf.test.compute_gradient(
[case.features_op], [case.features.shape], actual_op,
case.expected_output_shape())[0]
else:
return sess.run(tf.gradients(actual_op, [case.features_op]))[0]
def _backward_bias(self, use_gpu=False, dtype=np.float32, numdiff=True):
case.init_ops(dtype=dtype)
with self.test_session(use_gpu=use_gpu, force_gpu=use_gpu) as sess:
actual_op = flex_convolution_transpose(case.features_op,
case.position_op,
case.neighborhood_op,
case.theta_op, case.bias_op)
if numdiff:
return tf.test.compute_gradient(
[case.bias_op], [case.bias.shape], actual_op,
case.expected_output_shape())[0]
else:
return sess.run(tf.gradients(actual_op, [case.bias_op]))[0]
def _backward_theta(self, use_gpu=False, dtype=np.float32, numdiff=True):
case.init_ops(dtype=dtype)
with self.test_session(use_gpu=use_gpu, force_gpu=use_gpu) as sess:
actual_op = flex_convolution_transpose(case.features_op,
case.position_op,
case.neighborhood_op,
case.theta_op, case.bias_op)
if numdiff:
return tf.test.compute_gradient(
[case.theta_op], [case.theta.shape], actual_op,
case.expected_output_shape())[0]
else:
return sess.run(tf.gradients(actual_op, [case.theta_op]))[0]
def test_backward_features_cpu_float64(self):
actual, expected = self._backward_features(use_gpu=False, dtype=np.float64)
self.assertAllClose(actual, expected)
def test_backward_bias_cpu_float64(self):
actual, expected = self._backward_bias(use_gpu=False, dtype=np.float64)
self.assertAllClose(actual, expected)
def test_backward_theta_cpu_float64(self):
actual, expected = self._backward_theta(use_gpu=False, dtype=np.float64)
self.assertAllClose(actual, expected)
def test_backward_features_gpu_float64(self):
actual, expected = self._backward_features(use_gpu=True, dtype=np.float64)
self.assertAllClose(actual, expected)
def test_backward_bias_gpu_float64(self):
actual, expected = self._backward_bias(use_gpu=True, dtype=np.float64)
self.assertAllClose(actual, expected)
def test_backward_theta_gpu_float64(self):
actual, expected = self._backward_theta(use_gpu=True, dtype=np.float64)
self.assertAllClose(actual, expected)
def test_backward_features_gpu_float32(self, dtype=np.float32):
cpu = self._backward_features(use_gpu=False, dtype=dtype, numdiff=False)
gpu = self._backward_features(use_gpu=True, dtype=dtype, numdiff=False)
self.assertAllClose(cpu, gpu)
def test_backward_bias_gpu_float32(self, dtype=np.float32):
cpu = self._backward_bias(use_gpu=False, dtype=dtype, numdiff=False)
gpu = self._backward_bias(use_gpu=True, dtype=dtype, numdiff=False)
self.assertAllClose(cpu, gpu, 1e-5)
def test_backward_theta_gpu_float32(self, dtype=np.float32):
cpu = self._backward_theta(use_gpu=False, dtype=dtype, numdiff=False)
gpu = self._backward_theta(use_gpu=True, dtype=dtype, numdiff=False)
self.assertAllClose(cpu, gpu)
if __name__ == '__main__':
tf.test.main()