def check_forward_consistency(self, use_cudnn='always'):
x_cpu = chainer.Variable(self.x)
W_cpu = chainer.Variable(self.W)
b_cpu = None if self.nobias else chainer.Variable(self.b)
y_cpu = F.deconvolution_nd(x_cpu,
W_cpu,
b_cpu,
stride=self.stride,
pad=self.pad,
outsize=self.outsize,
dilate=self.dilate,
groups=self.groups)
x_gpu = chainer.Variable(cuda.to_gpu(self.x))
W_gpu = chainer.Variable(cuda.to_gpu(self.W))
b_gpu = None if self.nobias else chainer.Variable(cuda.to_gpu(self.b))
with chainer.using_config('use_cudnn', use_cudnn):
with chainer.using_config('autotune', self.autotune):
y_gpu = F.deconvolution_nd(x_gpu,
W_gpu,
b_gpu,
stride=self.stride,
pad=self.pad,
outsize=self.outsize,
dilate=self.dilate,
groups=self.groups)
self.assertEqual(y_cpu.data.dtype, self.x_dtype)
self.assertEqual(y_gpu.data.dtype, self.x_dtype)
testing.assert_allclose(y_cpu.data, y_gpu.data.get(),
**self.test_forward_options)
def test_estimated_outsize(self):
x = numpy.random.uniform(-1, 1, (2, 3, 4)).astype(numpy.float32)
W = numpy.random.uniform(-1, 1, (3, 2, 2)).astype(numpy.float32)
stride = 1
pad = 10
with self.assertRaises(AssertionError):
F.deconvolution_nd(x, W, stride=stride, pad=pad)
def check_array_supplied(self, x_ary, W_ary, b_ary):
y_ary = F.deconvolution_nd(x_ary, W_ary, b_ary)
x_var = chainer.Variable(x_ary)
W_var = chainer.Variable(W_ary)
b_var = chainer.Variable(b_ary)
y_var = F.deconvolution_nd(x_var, W_var, b_var)
testing.assert_allclose(y_ary.data, y_var.data)
def test_bias(self):
# dtype
x = numpy.random.uniform(-1, 1, (2, 3, 4)).astype(numpy.float32)
W = numpy.random.uniform(-1, 1, (3, 2, 2)).astype(numpy.float32)
b = numpy.random.uniform(-1, 1, (2,)).astype(numpy.int32)
with self.assertRaises(type_check.InvalidType):
F.deconvolution_nd(x, W, b=b)
# ndim
x = numpy.random.uniform(-1, 1, (2, 3, 4)).astype(numpy.float32)
W = numpy.random.uniform(-1, 1, (3, 2, 2)).astype(numpy.float32)
b = numpy.random.uniform(-1, 1, (2, 2)).astype(numpy.float32)
with self.assertRaises(type_check.InvalidType):
F.deconvolution_nd(x, W, b=b)
def f(*args):
return F.deconvolution_nd(*args,
stride=self.stride,
pad=self.pad,
outsize=self.outsize,
dilate=self.dilate,
groups=self.groups)
def check_forward_consistency_regression(self,
x_data,
W_data,
b_data,
use_cudnn='always'):
x = chainer.Variable(x_data)
W = chainer.Variable(W_data)
b = None if self.nobias else chainer.Variable(b_data)
with chainer.using_config('use_cudnn', use_cudnn):
y_nd = F.deconvolution_nd(x,
W,
b,
stride=self.stride,
pad=self.pad,
outsize=self.outsize,
dilate=self.dilate)
y_2d = F.deconvolution_2d(x,
W,
b,
stride=self.stride,
pad=self.pad,
outsize=self.outsize,
dilate=self.dilate)
testing.assert_allclose(y_nd.data, y_2d.data,
**self.test_forward_options)
def check_forward_consistency_regression(self, backend_config):
inputs = self.generate_inputs()
if self.nobias:
x, W = inputs
b = None
else:
x, W, b = inputs
x = chainer.Variable(backend_config.get_array(x))
W = chainer.Variable(backend_config.get_array(W))
if b is not None:
b = chainer.Variable(backend_config.get_array(b))
use_cudnn = backend_config.use_cudnn
with chainer.using_config('use_cudnn', use_cudnn):
y_nd = F.deconvolution_nd(x,
W,
b,
stride=self.stride,
pad=self.pad,
outsize=self.outsize,
dilate=self.dilate)
y_2d = F.deconvolution_2d(x,
W,
b,
stride=self.stride,
pad=self.pad,
outsize=self.outsize,
dilate=self.dilate)
testing.assert_allclose(y_nd.array, y_2d.array,
**self.check_forward_options)
def check_forward_consistency(self, use_cudnn=True):
x_cpu = chainer.Variable(self.x)
W_cpu = chainer.Variable(self.W)
b_cpu = None if self.nobias else chainer.Variable(self.b)
y_cpu = F.deconvolution_nd(
x_cpu, W_cpu, b_cpu, stride=self.stride, pad=self.pad,
outsize=self.outsize, use_cudnn=use_cudnn)
x_gpu = chainer.Variable(cuda.to_gpu(self.x))
W_gpu = chainer.Variable(cuda.to_gpu(self.W))
b_gpu = None if self.nobias else chainer.Variable(cuda.to_gpu(self.b))
y_gpu = F.deconvolution_nd(
x_gpu, W_gpu, b_gpu, stride=self.stride, pad=self.pad,
outsize=self.outsize, use_cudnn=use_cudnn)
self.assertEqual(y_cpu.data.dtype, self.x_dtype)
self.assertEqual(y_gpu.data.dtype, self.x_dtype)
testing.assert_allclose(
y_cpu.data, y_gpu.data.get(), **self.test_forward_options)
def forward(self, inputs, device):
if self.nobias:
x, W = inputs
b = None
else:
x, W, b = inputs
y = F.deconvolution_nd(
x, W, b, stride=self.stride, pad=self.pad,
outsize=self.outsize, dilate=self.dilate,
groups=self.groups)
return y,
def forward_expected(self, link, inputs):
x, = inputs
W = link.W
b = link.b
y = F.deconvolution_nd(x,
W,
b,
outsize=self.outsize,
stride=self.stride,
pad=self.pad,
groups=self.groups)
return y.array,
def check_forward_consistency_regression(self, x_data, W_data, b_data,
use_cudnn=True):
x = chainer.Variable(x_data)
W = chainer.Variable(W_data)
b = None if self.nobias else chainer.Variable(b_data)
y_nd = F.deconvolution_nd(x, W, b, stride=self.stride, pad=self.pad,
outsize=self.outsize, use_cudnn=use_cudnn)
y_2d = F.deconvolution_2d(x, W, b, stride=self.stride, pad=self.pad,
outsize=self.outsize, use_cudnn=use_cudnn)
testing.assert_allclose(
y_nd.data, y_2d.data, **self.test_forward_options)
def __call__(self, x):
"""Applies N-dimensional convolution layer.
Args:
x (~chainer.Variable): Input image.
Returns:
~chainer.Variable: Output of convolution.
"""
return deconvolution_nd(
convolution_nd(x, self.W, self.b, self.stride, self.pad), self.W,
self.b, self.stride, self.pad)
def check_forward_consistency(self, use_cudnn='always'):
x_cpu = chainer.Variable(self.x)
W_cpu = chainer.Variable(self.W)
b_cpu = None if self.nobias else chainer.Variable(self.b)
y_cpu = F.deconvolution_nd(
x_cpu, W_cpu, b_cpu, stride=self.stride, pad=self.pad,
outsize=self.outsize, dilate=self.dilate,
groups=self.groups)
x_gpu = chainer.Variable(cuda.to_gpu(self.x))
W_gpu = chainer.Variable(cuda.to_gpu(self.W))
b_gpu = None if self.nobias else chainer.Variable(cuda.to_gpu(self.b))
with chainer.using_config('use_cudnn', use_cudnn):
with chainer.using_config('autotune', self.autotune):
y_gpu = F.deconvolution_nd(
x_gpu, W_gpu, b_gpu, stride=self.stride, pad=self.pad,
outsize=self.outsize, dilate=self.dilate,
groups=self.groups)
self.assertEqual(y_cpu.data.dtype, self.x_dtype)
self.assertEqual(y_gpu.data.dtype, self.x_dtype)
testing.assert_allclose(
y_cpu.data, y_gpu.data.get(), **self.test_forward_options)
def check_forward_consistency_regression(self, x_data, W_data, b_data,
use_cudnn='always'):
x = chainer.Variable(x_data)
W = chainer.Variable(W_data)
b = None if self.nobias else chainer.Variable(b_data)
with chainer.using_config('use_cudnn', use_cudnn):
y_nd = F.deconvolution_nd(x, W, b, stride=self.stride,
pad=self.pad, outsize=self.outsize,
dilate=self.dilate)
y_2d = F.deconvolution_2d(x, W, b, stride=self.stride,
pad=self.pad, outsize=self.outsize,
dilate=self.dilate)
testing.assert_allclose(
y_nd.data, y_2d.data, **self.test_forward_options)
def forward(self, x):
if self.W.array is None:
self._initialize_params(x.shape[1])
pad_width = [(0, 0), (0, 0)] + list(map(lambda x: (x, x), self.pad))
x = F.pad(x, pad_width, self.pad_mode)
return F.deconvolution_nd(x,
self.W,
b=self.b,
stride=self.stride,
pad=0,
outsize=self.outsize,
dilate=self.dilate,
groups=self.groups)
def forward_expected(self, inputs):
"""
Current forward_expected implementation depends on
F.deconvolution_nd itself and thus it's only capable
of checking consistency between backends, not absolute
correctness of computations
"""
if self.nobias:
x, W = inputs
b = None
else:
x, W, b = inputs
y_expected = F.deconvolution_nd(
x, W, b, stride=self.stride, pad=self.pad,
outsize=self.outsize, dilate=self.dilate,
groups=self.groups)
return y_expected.array,
def test_data_and_weight(self):
# dtype of data
x = numpy.random.uniform(-1, 1, (2, 3, 4)).astype(numpy.int32)
W = numpy.random.uniform(-1, 1, (3, 2, 2)).astype(numpy.float32)
with self.assertRaises(type_check.InvalidType):
F.deconvolution_nd(x, W)
# dtype of weight
x = numpy.random.uniform(-1, 1, (2, 3, 4)).astype(numpy.float32)
W = numpy.random.uniform(-1, 1, (3, 2, 2)).astype(numpy.int32)
with self.assertRaises(type_check.InvalidType):
F.deconvolution_nd(x, W)
# ndim of weight
x = numpy.random.uniform(-1, 1, (2, 3, 4, 4)).astype(numpy.float32)
W = numpy.random.uniform(-1, 1, (3, 2, 2)).astype(numpy.float32)
with self.assertRaises(type_check.InvalidType):
F.deconvolution_nd(x, W)
# shapes of data and weight
x = numpy.random.uniform(-1, 1, (2, 3, 4)).astype(numpy.float32)
W = numpy.random.uniform(-1, 1, (2, 2, 2)).astype(numpy.float32)
with self.assertRaises(type_check.InvalidType):
F.deconvolution_nd(x, W)
def test_deconv3d(self):
(x, W, b) = self._get_data(3)
testing.assert_allclose(
F.deconvolution_nd(x, W, b).data, F.deconvolution_3d(x, W, b).data)
def f(*args):
y = F.deconvolution_nd(
*args, stride=self.stride, pad=self.pad, outsize=self.outsize,
dilate=self.dilate, groups=self.groups)
return y * y # make the function nonlinear
def test_supplied_outsize(self):
x = numpy.random.uniform(-1, 1, (2, 3, 4)).astype(numpy.float32)
W = numpy.random.uniform(-1, 1, (3, 2, 2)).astype(numpy.float32)
outsize = (10,)
with self.assertRaises(type_check.InvalidType):
F.deconvolution_nd(x, W, outsize=outsize)
def f(*args):
return F.deconvolution_nd(*args, stride=self.stride, pad=self.pad,
outsize=self.outsize)
def forward(self):
x = chainer.Variable(self.x)
W = chainer.Variable(self.W)
return F.deconvolution_nd(x, W, None, stride=1, pad=1)
def f(*args):
return F.deconvolution_nd(
*args, stride=self.stride, pad=self.pad, outsize=self.outsize,
dilate=self.dilate, groups=self.groups)
def f(*args):
y = F.deconvolution_nd(
*args, stride=self.stride, pad=self.pad, outsize=self.outsize)
return y * y # make the function nonlinear
