def test_uniform_vector(self):
rng_R = random_state_type()
low = tensor.vector()
high = tensor.vector()
post_r, out = uniform(rng_R, low=low, high=high)
assert out.ndim == 1
f = compile.function([rng_R, low, high], [post_r, out], accept_inplace=True)
def as_floatX(thing):
return numpy.asarray(thing, dtype=theano.config.floatX)
low_val = as_floatX([0.1, 0.2, 0.3])
high_val = as_floatX([1.1, 2.2, 3.3])
rng = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
# Arguments of size (3,)
rng0, val0 = f(rng, low_val, high_val)
numpy_val0 = as_floatX(numpy_rng.uniform(low=low_val, high=high_val))
assert numpy.all(val0 == numpy_val0)
# arguments of size (2,)
rng1, val1 = f(rng0, low_val[:-1], high_val[:-1])
numpy_val1 = as_floatX(numpy_rng.uniform(low=low_val[:-1], high=high_val[:-1]))
assert numpy.all(val1 == numpy_val1)
# Specifying the size explicitly
g = compile.function([rng_R, low, high], uniform(rng_R, low=low, high=high, size=(3,)), accept_inplace=True)
rng2, val2 = g(rng1, low_val, high_val)
numpy_val2 = as_floatX(numpy_rng.uniform(low=low_val, high=high_val, size=(3,)))
assert numpy.all(val2 == numpy_val2)
self.assertRaises(ValueError, g, rng2, low_val[:-1], high_val[:-1])
def test_random_function_noshape_args(self):
"""Test if random_function helper works with args but without shape"""
rng_R = random_state_type()
# No shape, default args -> OK
post_out, out = uniform(rng_R, size=None, ndim=2)
f = compile.function(
[compile.In(rng_R, value=numpy.random.RandomState(utt.fetch_seed()), update=post_out, mutable=True)],
[out],
accept_inplace=True,
)
o, = f()
# No shape, args that have to be broadcasted -> OK
low = tensor.TensorType(dtype="float64", broadcastable=(False, True, True))()
high = tensor.TensorType(dtype="float64", broadcastable=(True, True, True, False))()
post_out2, out2 = uniform(rng_R, size=None, ndim=2, low=low, high=high)
self.assertEqual(out2.ndim, 4)
self.assertEqual(out2.broadcastable, (True, False, True, False))
g = compile.function(
[
low,
high,
compile.In(rng_R, value=numpy.random.RandomState(utt.fetch_seed()), update=post_out2, mutable=True),
],
[out2],
accept_inplace=True,
)
low_v = [[[3]], [[4]], [[-5]]]
high_v = [[[[5, 8]]]]
o2, = g(low_v, high_v)
self.assertEqual(o2.shape, (1, 3, 1, 2))
def test_uniform_vector(self):
m = Module()
m.random = RandomStreams(utt.fetch_seed())
low = tensor.vector()
high = tensor.vector()
out = m.random.uniform(low=low, high=high)
assert out.ndim == 1
m.f = Method([low, high], out)
# Specifying the size explicitly
m.g = Method([low, high],
m.random.uniform(low=low, high=high, size=(3,)))
made = m.make()
made.random.initialize()
low_val = numpy.asarray([.1, .2, .3], dtype=config.floatX)
high_val = numpy.asarray([1.1, 2.2, 3.3], dtype=config.floatX)
seed_gen = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
# Arguments of size (3,)
val0 = made.f(low_val, high_val)
numpy_val0 = numpy_rng.uniform(low=low_val, high=high_val)
assert numpy.allclose(val0, numpy_val0)
# arguments of size (2,)
val1 = made.f(low_val[:-1], high_val[:-1])
numpy_val1 = numpy_rng.uniform(low=low_val[:-1], high=high_val[:-1])
assert numpy.allclose(val1, numpy_val1)
# Specifying the size explicitly
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
val2 = made.g(low_val, high_val)
numpy_val2 = numpy_rng.uniform(low=low_val, high=high_val, size=(3,))
assert numpy.allclose(val2, numpy_val2)
self.assertRaises(ValueError, made.g, low_val[:-1], high_val[:-1])
def test_ndim(self):
"""Test that the behaviour of 'ndim' optional parameter"""
# 'ndim' is an optional integer parameter, specifying the length
# of the 'shape', passed as a keyword argument.
# ndim not specified, OK
m1 = Module()
m1.random = RandomStreams(utt.fetch_seed())
m1.fn = Method([], m1.random.uniform((2,2)))
made1 = m1.make()
made1.random.initialize()
# ndim specified, consistent with shape, OK
m2 = Module()
m2.random = RandomStreams(utt.fetch_seed())
m2.fn = Method([], m2.random.uniform((2,2), ndim=2))
made2 = m2.make()
made2.random.initialize()
val1 = made1.fn()
val2 = made2.fn()
assert numpy.all(val1 == val2)
# ndim specified, inconsistent with shape, should raise ValueError
m3 = Module()
m3.random = RandomStreams(utt.fetch_seed())
self.assertRaises(ValueError, m3.random.uniform, (2,2), ndim=1)
def test_binomial_vector(self):
random = RandomStreams(utt.fetch_seed())
n = tensor.lvector()
prob = tensor.vector()
out = random.binomial(n=n, p=prob)
assert out.ndim == 1
f = function([n, prob], out)
n_val = [1, 2, 3]
prob_val = numpy.asarray([.1, .2, .3], dtype=config.floatX)
seed_gen = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
# Arguments of size (3,)
val0 = f(n_val, prob_val)
numpy_val0 = numpy_rng.binomial(n=n_val, p=prob_val)
assert numpy.all(val0 == numpy_val0)
# arguments of size (2,)
val1 = f(n_val[:-1], prob_val[:-1])
numpy_val1 = numpy_rng.binomial(n=n_val[:-1], p=prob_val[:-1])
assert numpy.all(val1 == numpy_val1)
# Specifying the size explicitly
g = function([n, prob], random.binomial(n=n, p=prob, size=(3,)))
val2 = g(n_val, prob_val)
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
numpy_val2 = numpy_rng.binomial(n=n_val, p=prob_val, size=(3,))
assert numpy.all(val2 == numpy_val2)
self.assertRaises(ValueError, g, n_val[:-1], prob_val[:-1])
def test_normal_vector(self):
m = Module()
m.random = RandomStreams(utt.fetch_seed())
avg = tensor.vector()
std = tensor.vector()
out = m.random.normal(avg=avg, std=std)
assert out.ndim == 1
m.f = Method([avg, std], out)
# Specifying the size explicitly
m.g = Method([avg, std],
m.random.normal(avg=avg, std=std, size=(3,)))
made = m.make()
made.random.initialize()
avg_val = [1, 2, 3]
std_val = numpy.asarray([.1, .2, .3], dtype=config.floatX)
seed_gen = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
# Arguments of size (3,)
val0 = made.f(avg_val, std_val)
numpy_val0 = numpy_rng.normal(loc=avg_val, scale=std_val)
assert numpy.allclose(val0, numpy_val0)
# arguments of size (2,)
val1 = made.f(avg_val[:-1], std_val[:-1])
numpy_val1 = numpy_rng.normal(loc=avg_val[:-1], scale=std_val[:-1])
assert numpy.allclose(val1, numpy_val1)
# Specifying the size explicitly
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
val2 = made.g(avg_val, std_val)
numpy_val2 = numpy_rng.normal(loc=avg_val, scale=std_val, size=(3,))
assert numpy.allclose(val2, numpy_val2)
self.assertRaises(ValueError, made.g, avg_val[:-1], std_val[:-1])
def test_binomial(self):
"""Test that raw_random.binomial generates the same results
as numpy."""
# Check over two calls to see if the random state is correctly updated.
rng_R = random_state_type()
# Use non-default parameters, and larger dimensions because of
# the integer nature of the result
post_r, bin = binomial(rng_R, (7, 12), 5, 0.8)
f = compile.function(
[compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=post_r, mutable=True)],
[bin], accept_inplace=True)
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
val0 = f()
val1 = f()
numpy_val0 = numpy_rng.binomial(5, 0.8, size=(7, 12))
numpy_val1 = numpy_rng.binomial(5, 0.8, size=(7, 12))
print val0
print numpy_val0
print val1
print numpy_val1
self.assertTrue(numpy.all(val0 == numpy_val0))
self.assertTrue(numpy.all(val1 == numpy_val1))
def test_random_integers_vector(self):
random = RandomStreams(utt.fetch_seed())
low = tensor.lvector()
high = tensor.lvector()
out = random.random_integers(low=low, high=high)
assert out.ndim == 1
f = function([low, high], out)
low_val = [100, 200, 300]
high_val = [110, 220, 330]
seed_gen = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
# Arguments of size (3,)
val0 = f(low_val, high_val)
numpy_val0 = numpy.asarray([numpy_rng.randint(low=lv, high=hv+1)
for lv, hv in zip(low_val, high_val)])
assert numpy.all(val0 == numpy_val0)
# arguments of size (2,)
val1 = f(low_val[:-1], high_val[:-1])
numpy_val1 = numpy.asarray([numpy_rng.randint(low=lv, high=hv+1)
for lv, hv in zip(low_val[:-1], high_val[:-1])])
assert numpy.all(val1 == numpy_val1)
# Specifying the size explicitly
g = function([low, high], random.random_integers(low=low, high=high, size=(3,)))
val2 = g(low_val, high_val)
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
numpy_val2 = numpy.asarray([numpy_rng.randint(low=lv, high=hv+1)
for lv, hv in zip(low_val, high_val)])
assert numpy.all(val2 == numpy_val2)
self.assertRaises(ValueError, g, low_val[:-1], high_val[:-1])
def test_permutation(self):
"""Test that raw_random.permutation generates the same
results as numpy."""
rng_R = random_state_type()
post_r, out = permutation(rng_R, size=(9,), n=6)
print 'OUT NDIM', out.ndim
f = compile.function(
[compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=post_r, mutable=True)],
[out], accept_inplace=True)
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
# Check over two calls to see if the random state is correctly updated.
# numpy_rng.permutation outputs one vector at a time,
# so we call it iteratively to generate all the samples.
val0 = f()
val1 = f()
numpy_val0 = numpy.asarray([numpy_rng.permutation(6)
for i in range(9)])
numpy_val1 = numpy.asarray([numpy_rng.permutation(6)
for i in range(9)])
print val0
print numpy_val0
print val1
print numpy_val1
self.assertTrue(numpy.all(val0 == numpy_val0))
self.assertTrue(numpy.all(val1 == numpy_val1))
def test_random_integers(self):
"""Test that raw_random.random_integers generates the same
results as numpy."""
# Check over two calls to see if the random state is correctly updated.
rng_R = random_state_type()
# Use non-default parameters, and larger dimensions because of
# the integer nature of the result
post_r, out = random_integers(rng_R, (11, 8), -3, 16)
f = compile.function(
[compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=post_r, mutable=True)],
[out], accept_inplace=True)
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
val0 = f()
val1 = f()
numpy_val0 = numpy_rng.random_integers(-3, 16, size=(11, 8))
numpy_val1 = numpy_rng.random_integers(-3, 16, size=(11, 8))
print val0
print numpy_val0
print val1
print numpy_val1
self.assertTrue(numpy.allclose(val0, numpy_val0))
self.assertTrue(numpy.allclose(val1, numpy_val1))
def test_multinomial(self):
"""Test that raw_random.multinomial generates the same
results as numpy."""
# Check over two calls to see if the random state is correctly updated.
rng_R = random_state_type()
post_r, out = multinomial(rng_R, (7, 3), 6, [0.2] * 5)
f = compile.function(
[compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=post_r, mutable=True)],
[out], accept_inplace=True)
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
val0, = f()
val1, = f()
numpy_val0 = numpy_rng.multinomial(6, [0.2] * 5, (7, 3))
numpy_val1 = numpy_rng.multinomial(6, [0.2] * 5, (7, 3))
print val0
print numpy_val0
print val1
print numpy_val1
self.assertTrue(numpy.all(val0 == numpy_val0))
self.assertTrue(numpy.all(val1 == numpy_val1))
self.assertTrue(val0.shape == (7, 3, 5))
self.assertTrue(val1.shape == (7, 3, 5))
def test_binomial_vector(self):
rng_R = random_state_type()
n = tensor.lvector()
prob = tensor.vector()
post_r, out = binomial(rng_R, n=n, p=prob)
assert out.ndim == 1
f = compile.function([rng_R, n, prob], [post_r, out],
accept_inplace=True)
n_val = [1, 2, 3]
prob_val = numpy.asarray([.1, .2, .3], dtype=config.floatX)
rng = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
# Arguments of size (3,)
rng0, val0 = f(rng, n_val, prob_val)
numpy_val0 = numpy_rng.binomial(n=n_val, p=prob_val)
assert numpy.all(val0 == numpy_val0)
# arguments of size (2,)
rng1, val1 = f(rng0, n_val[:-1], prob_val[:-1])
numpy_val1 = numpy_rng.binomial(n=n_val[:-1], p=prob_val[:-1])
assert numpy.all(val1 == numpy_val1)
# Specifying the size explicitly
g = compile.function([rng_R, n, prob],
binomial(rng_R, n=n, p=prob, size=(3,)),
accept_inplace=True)
rng2, val2 = g(rng1, n_val, prob_val)
numpy_val2 = numpy_rng.binomial(n=n_val, p=prob_val, size=(3,))
assert numpy.all(val2 == numpy_val2)
self.assertRaises(ValueError, g, rng2, n_val[:-1], prob_val[:-1])
def test_random_integers_vector(self):
rng_R = random_state_type()
low = tensor.lvector()
high = tensor.lvector()
post_r, out = random_integers(rng_R, low=low, high=high)
assert out.ndim == 1
f = compile.function([rng_R, low, high], [post_r, out],
accept_inplace=True)
low_val = [100, 200, 300]
high_val = [110, 220, 330]
rng = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
# Arguments of size (3,)
rng0, val0 = f(rng, low_val, high_val)
numpy_val0 = numpy.asarray([numpy_rng.random_integers(low=lv, high=hv)
for lv, hv in zip(low_val, high_val)])
assert numpy.all(val0 == numpy_val0)
# arguments of size (2,)
rng1, val1 = f(rng0, low_val[:-1], high_val[:-1])
numpy_val1 = numpy.asarray([numpy_rng.random_integers(low=lv, high=hv)
for lv, hv in zip(low_val[:-1], high_val[:-1])])
assert numpy.all(val1 == numpy_val1)
# Specifying the size explicitly
g = compile.function([rng_R, low, high],
random_integers(rng_R, low=low, high=high, size=(3,)),
accept_inplace=True)
rng2, val2 = g(rng1, low_val, high_val)
numpy_val2 = numpy.asarray([numpy_rng.random_integers(low=lv, high=hv)
for lv, hv in zip(low_val, high_val)])
assert numpy.all(val2 == numpy_val2)
self.assertRaises(ValueError, g, rng2, low_val[:-1], high_val[:-1])
def test_no_inplace(self):
"""Test that when not running inplace, the RandomState is
not updated"""
rf = RandomFunction("uniform", tensor.dvector)
rng_R = random_state_type()
post_r, out = rf(rng_R, (3,), 0.0, 1.0)
f = compile.function([rng_R], [post_r, out])
rng = numpy.random.RandomState(utt.fetch_seed())
rng0, val0 = f(rng)
rng_ = numpy.random.RandomState(utt.fetch_seed())
# rng should still be in a fresh state
self.assertTrue(rng_R.type.values_eq(rng, rng_))
# rng0 should be in an updated state
self.assertFalse(rng_R.type.values_eq(rng, rng0))
f2 = compile.function([compile.In(rng_R, value=rng, update=post_r, mutable=False)], [post_r, out])
rng2, val2 = f2()
# rng should be in a fresh state
self.assertTrue(rng_R.type.values_eq(rng, rng_))
# rng2 should be in an updated state
self.assertFalse(rng_R.type.values_eq(rng, rng2))
# The updated state should be the same for both functions
self.assertTrue(rng_R.type.values_eq(rng2, rng0))
rng3, val3 = f2()
# rng2 should not have changed
self.assertTrue(rng_R.type.values_eq(rng2, rng0))
# rng3 should be an updated again version of rng2
self.assertFalse(rng_R.type.values_eq(rng3, rng2))
self.assertFalse(rng_R.type.values_eq(rng3, rng))
def test_infer_shape(self):
if not imported_scipy:
raise SkipTest("Scipy needed for the Cholesky op.")
rng = numpy.random.RandomState(utt.fetch_seed())
A = theano.tensor.matrix()
b = theano.tensor.matrix()
self._compile_and_check([A, b], # theano.function inputs
[self.op(A, b)], # theano.function outputs
# A must be square
[numpy.asarray(rng.rand(5, 5),
dtype=config.floatX),
numpy.asarray(rng.rand(5, 1),
dtype=config.floatX)],
self.op_class,
warn=False)
rng = numpy.random.RandomState(utt.fetch_seed())
A = theano.tensor.matrix()
b = theano.tensor.vector()
self._compile_and_check([A, b], # theano.function inputs
[self.op(A, b)], # theano.function outputs
# A must be square
[numpy.asarray(rng.rand(5, 5),
dtype=config.floatX),
numpy.asarray(rng.rand(5),
dtype=config.floatX)],
self.op_class,
warn=False)
def test_multinomial_vector(self):
random = RandomStreams(utt.fetch_seed())
n = tensor.lvector()
pvals = tensor.matrix()
out = random.multinomial(n=n, pvals=pvals)
assert out.ndim == 2
f = function([n, pvals], out)
n_val = [1, 2, 3]
pvals_val = [[.1, .9], [.2, .8], [.3, .7]]
pvals_val = numpy.asarray(pvals_val, dtype=config.floatX)
seed_gen = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
# Arguments of size (3,)
val0 = f(n_val, pvals_val)
numpy_val0 = numpy.asarray([numpy_rng.multinomial(n=nv, pvals=pv)
for nv, pv in zip(n_val, pvals_val)])
assert numpy.all(val0 == numpy_val0)
# arguments of size (2,)
val1 = f(n_val[:-1], pvals_val[:-1])
numpy_val1 = numpy.asarray([numpy_rng.multinomial(n=nv, pvals=pv)
for nv, pv in zip(n_val[:-1], pvals_val[:-1])])
assert numpy.all(val1 == numpy_val1)
# Specifying the size explicitly
g = function([n, pvals], random.multinomial(n=n, pvals=pvals, size=(3,)))
val2 = g(n_val, pvals_val)
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
numpy_val2 = numpy.asarray([numpy_rng.multinomial(n=nv, pvals=pv)
for nv, pv in zip(n_val, pvals_val)])
assert numpy.all(val2 == numpy_val2)
self.assertRaises(ValueError, g, n_val[:-1], pvals_val[:-1])
def test_choice(self):
"""Test that raw_random.choice generates the same
results as numpy."""
# numpy.random.choice is only available for numpy versions >= 1.7
major, minor, _ = numpy.version.short_version.split('.')
if (int(major), int(minor)) < (1, 7):
raise utt.SkipTest('choice requires at NumPy version >= 1.7 '
'(%s)' % numpy.__version__)
# Check over two calls to see if the random state is correctly updated.
rng_R = random_state_type()
# Use non-default parameters, and larger dimensions because of
# the integer nature of the result
post_r, out = choice(rng_R, (11, 8), 10, 1, 0)
f = compile.function(
[compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=post_r, mutable=True)],
[out], accept_inplace=True)
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
val0 = f()
val1 = f()
numpy_val0 = numpy_rng.choice(10, (11, 8), True, None)
numpy_val1 = numpy_rng.choice(10, (11, 8), True, None)
print val0
print numpy_val0
print val1
print numpy_val1
self.assertTrue(numpy.allclose(val0, numpy_val0))
self.assertTrue(numpy.allclose(val1, numpy_val1))
def test_normal_vector(self):
random = RandomStreams(utt.fetch_seed())
avg = tensor.dvector()
std = tensor.dvector()
out = random.normal(avg=avg, std=std)
assert out.ndim == 1
f = function([avg, std], out)
avg_val = [1, 2, 3]
std_val = [.1, .2, .3]
seed_gen = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
# Arguments of size (3,)
val0 = f(avg_val, std_val)
numpy_val0 = numpy_rng.normal(loc=avg_val, scale=std_val)
assert numpy.allclose(val0, numpy_val0)
# arguments of size (2,)
val1 = f(avg_val[:-1], std_val[:-1])
numpy_val1 = numpy_rng.normal(loc=avg_val[:-1], scale=std_val[:-1])
assert numpy.allclose(val1, numpy_val1)
# Specifying the size explicitly
g = function([avg, std], random.normal(avg=avg, std=std, size=(3,)))
val2 = g(avg_val, std_val)
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
numpy_val2 = numpy_rng.normal(loc=avg_val, scale=std_val, size=(3,))
assert numpy.allclose(val2, numpy_val2)
self.assertRaises(ValueError, g, avg_val[:-1], std_val[:-1])
def test_gpu4_gibbs_chain(self):
rng = numpy.random.RandomState(utt.fetch_seed())
v_vsample = numpy.array(rng.binomial(1, .5, size=(3, 20),),
dtype='float32')
vsample = theano.shared(v_vsample)
trng = theano.sandbox.rng_mrg.MRG_RandomStreams(
utt.fetch_seed())
def f(vsample_tm1):
return trng.binomial(vsample_tm1.shape, n=1, p=0.3,
dtype='float32') * vsample_tm1
theano_vsamples, updates = theano.scan(f,
[],
vsample,
[],
n_steps=10,
truncate_gradient=-1,
go_backwards=False,
mode=mode_with_gpu)
my_f = theano.function([],
theano_vsamples[-1],
updates=updates,
allow_input_downcast=True,
mode=mode_with_gpu)
# I leave this to tested by debugmode, this test was anyway
# more of does the graph compile kind of test
t_result = my_f()
def test_uniform_vector(self):
random = RandomStreams(utt.fetch_seed())
low = tensor.dvector()
high = tensor.dvector()
out = random.uniform(low=low, high=high)
assert out.ndim == 1
f = function([low, high], out)
low_val = [.1, .2, .3]
high_val = [1.1, 2.2, 3.3]
seed_gen = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
# Arguments of size (3,)
val0 = f(low_val, high_val)
numpy_val0 = numpy_rng.uniform(low=low_val, high=high_val)
print('THEANO', val0)
print('NUMPY', numpy_val0)
assert numpy.all(val0 == numpy_val0)
# arguments of size (2,)
val1 = f(low_val[:-1], high_val[:-1])
numpy_val1 = numpy_rng.uniform(low=low_val[:-1], high=high_val[:-1])
print('THEANO', val1)
print('NUMPY', numpy_val1)
assert numpy.all(val1 == numpy_val1)
# Specifying the size explicitly
g = function([low, high], random.uniform(low=low, high=high, size=(3,)))
val2 = g(low_val, high_val)
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
numpy_val2 = numpy_rng.uniform(low=low_val, high=high_val, size=(3,))
assert numpy.all(val2 == numpy_val2)
self.assertRaises(ValueError, g, low_val[:-1], high_val[:-1])
def test_multinomial_vector(self):
rng_R = random_state_type()
n = tensor.lvector()
pvals = tensor.matrix()
post_r, out = multinomial(rng_R, n=n, pvals=pvals)
assert out.ndim == 2
f = compile.function([rng_R, n, pvals], [post_r, out], accept_inplace=True)
n_val = [1, 2, 3]
pvals_val = [[0.1, 0.9], [0.2, 0.8], [0.3, 0.7]]
pvals_val = numpy.asarray(pvals_val, dtype=config.floatX)
rng = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
# Arguments of size (3,)
rng0, val0 = f(rng, n_val, pvals_val)
numpy_val0 = numpy.asarray([numpy_rng.multinomial(n=nv, pvals=pv) for nv, pv in zip(n_val, pvals_val)])
assert numpy.all(val0 == numpy_val0)
# arguments of size (2,)
rng1, val1 = f(rng0, n_val[:-1], pvals_val[:-1])
numpy_val1 = numpy.asarray(
[numpy_rng.multinomial(n=nv, pvals=pv) for nv, pv in zip(n_val[:-1], pvals_val[:-1])]
)
assert numpy.all(val1 == numpy_val1)
# Specifying the size explicitly
g = compile.function([rng_R, n, pvals], multinomial(rng_R, n=n, pvals=pvals, size=(3,)), accept_inplace=True)
rng2, val2 = g(rng1, n_val, pvals_val)
numpy_val2 = numpy.asarray([numpy_rng.multinomial(n=nv, pvals=pv) for nv, pv in zip(n_val, pvals_val)])
assert numpy.all(val2 == numpy_val2)
self.assertRaises(ValueError, g, rng2, n_val[:-1], pvals_val[:-1])
def test_binomial_vector(self):
m = Module()
m.random = RandomStreams(utt.fetch_seed())
n = tensor.lvector()
prob = tensor.vector()
out = m.random.binomial(n=n, p=prob)
assert out.ndim == 1
m.f = Method([n, prob], out)
# Specifying the size explicitly
m.g = Method([n, prob],
m.random.binomial(n=n, p=prob, size=(3,)))
made = m.make()
made.random.initialize()
n_val = [1, 2, 3]
prob_val = numpy.asarray([.1, .2, .3], dtype=config.floatX)
seed_gen = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
# Arguments of size (3,)
val0 = made.f(n_val, prob_val)
numpy_val0 = numpy_rng.binomial(n=n_val, p=prob_val)
assert numpy.all(val0 == numpy_val0)
# arguments of size (2,)
val1 = made.f(n_val[:-1], prob_val[:-1])
numpy_val1 = numpy_rng.binomial(n=n_val[:-1], p=prob_val[:-1])
assert numpy.all(val1 == numpy_val1)
# Specifying the size explicitly
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
val2 = made.g(n_val, prob_val)
numpy_val2 = numpy_rng.binomial(n=n_val, p=prob_val, size=(3,))
assert numpy.all(val2 == numpy_val2)
self.assertRaises(ValueError, made.g, n_val[:-1], prob_val[:-1])
def test_normal_vector(self):
rng_R = random_state_type()
avg = tensor.vector()
std = tensor.vector()
post_r, out = normal(rng_R, avg=avg, std=std)
assert out.ndim == 1
f = compile.function([rng_R, avg, std], [post_r, out], accept_inplace=True)
def as_floatX(thing):
return numpy.asarray(thing, dtype=theano.config.floatX)
avg_val = [1, 2, 3]
std_val = as_floatX([0.1, 0.2, 0.3])
rng = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
# Arguments of size (3,)
rng0, val0 = f(rng, avg_val, std_val)
numpy_val0 = as_floatX(numpy_rng.normal(loc=as_floatX(avg_val), scale=as_floatX(std_val)))
assert numpy.all(val0 == numpy_val0)
# arguments of size (2,)
rng1, val1 = f(rng0, avg_val[:-1], std_val[:-1])
numpy_val1 = numpy.asarray(numpy_rng.normal(loc=avg_val[:-1], scale=std_val[:-1]), dtype=theano.config.floatX)
assert numpy.all(val1 == numpy_val1)
# Specifying the size explicitly
g = compile.function([rng_R, avg, std], normal(rng_R, avg=avg, std=std, size=(3,)), accept_inplace=True)
rng2, val2 = g(rng1, avg_val, std_val)
numpy_val2 = numpy.asarray(numpy_rng.normal(loc=avg_val, scale=std_val, size=(3,)), dtype=theano.config.floatX)
assert numpy.all(val2 == numpy_val2)
self.assertRaises(ValueError, g, rng2, avg_val[:-1], std_val[:-1])
def test_broadcast_arguments(self):
m = Module()
m.random = RandomStreams(utt.fetch_seed())
low = tensor.vector()
high = tensor.col()
out = m.random.uniform(low=low, high=high)
assert out.ndim == 2
m.f = Method([low, high], out)
made = m.make()
made.random.initialize()
rng_seed = numpy.random.RandomState(utt.fetch_seed()).randint(2**30)
numpy_rng = numpy.random.RandomState(int(rng_seed))
low_vals = [
numpy.asarray([-5, .5, 0, 1], dtype=config.floatX),
numpy.asarray([.9], dtype=config.floatX),
numpy.asarray([-5, .5, 0, 1], dtype=config.floatX) ]
high_vals = [
numpy.asarray([[1.]], dtype=config.floatX),
numpy.asarray([[1.], [1.1], [1.5]], dtype=config.floatX),
numpy.asarray([[1.], [1.1], [1.5]], dtype=config.floatX) ]
val0 = made.f(low_vals[0], high_vals[0])
val1 = made.f(low_vals[1], high_vals[1])
val2 = made.f(low_vals[2], high_vals[2])
numpy_val0 = numpy_rng.uniform(low=low_vals[0], high=high_vals[0])
numpy_val1 = numpy_rng.uniform(low=low_vals[1], high=high_vals[1])
numpy_val2 = numpy_rng.uniform(low=low_vals[2], high=high_vals[2])
assert numpy.allclose(val0, numpy_val0)
assert numpy.allclose(val1, numpy_val1)
assert numpy.allclose(val2, numpy_val2)
def test_permutation(self):
# Test that raw_random.permutation generates the same results as numpy.
rng_R = random_state_type()
post_r, out = permutation(rng_R, size=(9,), n=6)
f = compile.function(
[compile.In(rng_R,
value=np.random.RandomState(utt.fetch_seed()),
update=post_r, mutable=True)],
[out], accept_inplace=True)
numpy_rng = np.random.RandomState(utt.fetch_seed())
# Check over two calls to see if the random state is correctly updated.
# numpy_rng.permutation outputs one vector at a time,
# so we call it iteratively to generate all the samples.
val0 = f()
val1 = f()
numpy_val0 = np.asarray([numpy_rng.permutation(6)
for i in range(9)])
numpy_val1 = np.asarray([numpy_rng.permutation(6)
for i in range(9)])
self.assertTrue(np.all(val0 == numpy_val0))
self.assertTrue(np.all(val1 == numpy_val1))
# Test that we can generate a list: have size=None or ().
for ndim in [1, None]:
post_r, out = permutation(rng_R, n=10, size=None, ndim=ndim)
inp = compile.In(rng_R,
value=np.random.RandomState(utt.fetch_seed()),
update=post_r, mutable=True)
f = theano.function([inp], out)
o = f()
assert o.shape == (10,)
assert (np.sort(o) == np.arange(10)).all()
# Wrong number of dimensions asked
self.assertRaises(TypeError, permutation, rng_R, size=None, ndim=2)
def test_inverse_grad():
rng = np.random.RandomState(utt.fetch_seed())
r = rng.randn(4, 4)
tensor.verify_grad(matrix_inverse, [r], rng=np.random)
rng = np.random.RandomState(utt.fetch_seed())
r = rng.randn(4, 4)
tensor.verify_grad(matrix_inverse, [r], rng=np.random)
def test_permutation_helper(self):
"""Test that raw_random.permutation_helper generates the same
results as numpy,
and that the 'ndim_added' keyword behaves correctly."""
# permutation_helper needs "ndim_added=1", because its output
# is one dimension more than its "shape" argument (and there's
# no way to determine that automatically).
# Check the working case, over two calls to see if the random
# state is correctly updated.
rf = RandomFunction(permutation_helper, tensor.imatrix, 8,
ndim_added=1)
rng_R = random_state_type()
post_r, out = rf(rng_R, (7,), 8)
f = compile.function(
[compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=post_r, mutable=True)],
[out], accept_inplace=True)
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
val0 = f()
val1 = f()
# numpy_rng.permutation outputs one vector at a time,
# so we call it iteratively to generate all the samples.
numpy_val0 = numpy.asarray([numpy_rng.permutation(8)
for i in range(7)])
numpy_val1 = numpy.asarray([numpy_rng.permutation(8)
for i in range(7)])
print val0
print numpy_val0
print val1
print numpy_val1
self.assertTrue(numpy.all(val0 == numpy_val0))
self.assertTrue(numpy.all(val1 == numpy_val1))
# This call lacks "ndim_added=1", so ndim_added defaults to 0.
# A ValueError should be raised.
rf0 = RandomFunction(permutation_helper, tensor.imatrix, 8)
post_r0, out0 = rf0(rng_R, (7,), 8)
f0 = compile.function(
[compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=post_r0, mutable=True)],
[out0], accept_inplace=True)
self.assertRaises(ValueError, f0)
# Here, ndim_added is 2 instead of 1. A ValueError should be raised.
rf2 = RandomFunction(permutation_helper, tensor.imatrix, 8,
ndim_added=2)
post_r2, out2 = rf2(rng_R, (7,), 8)
f2 = compile.function(
[compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=post_r2, mutable=True)],
[out2], accept_inplace=True)
self.assertRaises(ValueError, f2)
def test_shuffle_row_elements(self):
"""Test that RandomStreams.shuffle_row_elements generates the right results"""
# Check over two calls to see if the random state is correctly updated.
# On matrices, for each row, the elements of that row should be shuffled.
# Note that this differs from numpy.random.shuffle, where all the elements
# of the matrix are shuffled.
random = RandomStreams(utt.fetch_seed())
m_input = tensor.dmatrix()
f = function([m_input], random.shuffle_row_elements(m_input), updates=random.updates())
# Generate the elements to be shuffled
val_rng = numpy.random.RandomState(utt.fetch_seed()+42)
in_mval = val_rng.uniform(-2, 2, size=(20, 5))
fn_mval0 = f(in_mval)
fn_mval1 = f(in_mval)
print(in_mval[0])
print(fn_mval0[0])
print(fn_mval1[0])
assert not numpy.all(in_mval == fn_mval0)
assert not numpy.all(in_mval == fn_mval1)
assert not numpy.all(fn_mval0 == fn_mval1)
rng_seed = numpy.random.RandomState(utt.fetch_seed()).randint(2**30)
rng = numpy.random.RandomState(int(rng_seed))
numpy_mval0 = in_mval.copy()
numpy_mval1 = in_mval.copy()
for row in numpy_mval0:
rng.shuffle(row)
for row in numpy_mval1:
rng.shuffle(row)
assert numpy.all(numpy_mval0 == fn_mval0)
assert numpy.all(numpy_mval1 == fn_mval1)
# On vectors, the behaviour is the same as numpy.random.shuffle,
# except that it does not work in place, but returns a shuffled vector.
random1 = RandomStreams(utt.fetch_seed())
v_input = tensor.dvector()
f1 = function([v_input], random1.shuffle_row_elements(v_input))
in_vval = val_rng.uniform(-3, 3, size=(12,))
fn_vval = f1(in_vval)
numpy_vval = in_vval.copy()
vrng = numpy.random.RandomState(int(rng_seed))
vrng.shuffle(numpy_vval)
print(in_vval)
print(fn_vval)
print(numpy_vval)
assert numpy.all(numpy_vval == fn_vval)
# Trying to shuffle a vector with function that should shuffle
# matrices, or vice versa, raises a TypeError
self.assertRaises(TypeError, f1, in_mval)
self.assertRaises(TypeError, f, in_vval)
def test_vector_arguments(self):
m = Module()
m.random = RandomStreams(utt.fetch_seed())
low = tensor.vector()
out = m.random.uniform(low=low, high=1)
assert out.ndim == 1
m.f = Method([low], out)
high = tensor.vector()
outb = m.random.uniform(low=low, high=high)
assert outb.ndim == 1
m.fb = Method([low, high], outb)
size = tensor.lvector()
outc = m.random.uniform(low=low, high=high, size=size, ndim=1)
m.fc = Method([low, high, size], outc)
made = m.make()
made.random.initialize()
seed_gen = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
low_val0 = numpy.asarray([-5, .5, 0, 1], dtype=config.floatX)
low_val1 = numpy.asarray([.9], dtype=config.floatX)
val0 = made.f(low_val0)
val1 = made.f(low_val1)
numpy_val0 = numpy_rng.uniform(low=low_val0, high=1)
numpy_val1 = numpy_rng.uniform(low=low_val1, high=1)
assert numpy.allclose(val0, numpy_val0)
assert numpy.allclose(val1, numpy_val1)
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
val0b = made.fb([-4., -2], [-1, 0])
val1b = made.fb([-4.], [-1])
numpy_val0b = numpy_rng.uniform(low=[-4., -2], high=[-1, 0])
numpy_val1b = numpy_rng.uniform(low=[-4.], high=[-1])
assert numpy.allclose(val0b, numpy_val0b)
assert numpy.allclose(val1b, numpy_val1b)
self.assertRaises(ValueError, made.fb, [-4., -2], [-1, 0, 1])
#TODO: do we want that?
#self.assertRaises(ValueError, made.fb, [-4., -2], [-1])
numpy_rng = numpy.random.RandomState(int(seed_gen.randint(2**30)))
val0c = made.fc([-4., -2], [-1, 0], [2])
val1c = made.fc([-4.], [-1], [1])
numpy_val0c = numpy_rng.uniform(low=[-4., -2], high=[-1, 0])
numpy_val1c = numpy_rng.uniform(low=[-4.], high=[-1])
assert numpy.allclose(val0c, numpy_val0c)
assert numpy.allclose(val1c, numpy_val1c)
self.assertRaises(ValueError, made.fc, [-4., -2], [-1, 0], [1])
self.assertRaises(ValueError, made.fc, [-4., -2], [-1, 0], [1,2])
self.assertRaises(ValueError, made.fc, [-4., -2], [-1, 0], [2,1])
self.assertRaises(ValueError, made.fc, [-4., -2], [-1], [1])
def test_vector_arguments(self):
rng_R = random_state_type()
low = tensor.vector()
post_r, out = uniform(rng_R, low=low, high=1)
assert out.ndim == 1
f = compile.function([rng_R, low], [post_r, out], accept_inplace=True)
def as_floatX(thing):
return numpy.asarray(thing, dtype=theano.config.floatX)
rng_state0 = numpy.random.RandomState(utt.fetch_seed())
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
post0, val0 = f(rng_state0, [-5, .5, 0, 1])
post1, val1 = f(post0, as_floatX([.9]))
numpy_val0 = as_floatX(numpy_rng.uniform(low=[-5, .5, 0, 1], high=1))
numpy_val1 = as_floatX(numpy_rng.uniform(low=as_floatX([.9]), high=1))
assert numpy.all(val0 == numpy_val0)
assert numpy.all(val1 == numpy_val1)
high = tensor.vector()
post_rb, outb = uniform(rng_R, low=low, high=high)
assert outb.ndim == 1
fb = compile.function([rng_R, low, high], [post_rb, outb],
accept_inplace=True)
post0b, val0b = fb(post1, [-4., -2], [-1, 0])
post1b, val1b = fb(post0b, [-4.], [-1])
numpy_val0b = as_floatX(numpy_rng.uniform(low=[-4., -2], high=[-1, 0]))
numpy_val1b = as_floatX(numpy_rng.uniform(low=[-4.], high=[-1]))
assert numpy.all(val0b == numpy_val0b)
assert numpy.all(val1b == numpy_val1b)
self.assertRaises(ValueError, fb, post1b, [-4., -2], [-1, 0, 1])
#TODO: do we want that?
#self.assertRaises(ValueError, fb, post1b, [-4., -2], [-1])
size = tensor.lvector()
post_rc, outc = uniform(rng_R, low=low, high=high, size=size, ndim=1)
fc = compile.function([rng_R, low, high, size], [post_rc, outc],
accept_inplace=True)
post0c, val0c = fc(post1b, [-4., -2], [-1, 0], [2])
post1c, val1c = fc(post0c, [-4.], [-1], [1])
numpy_val0c = as_floatX(numpy_rng.uniform(low=[-4., -2], high=[-1, 0]))
numpy_val1c = as_floatX(numpy_rng.uniform(low=[-4.], high=[-1]))
assert numpy.all(val0c == numpy_val0c)
assert numpy.all(val1c == numpy_val1c)
self.assertRaises(ValueError, fc, post1c, [-4., -2], [-1, 0], [1])
self.assertRaises(ValueError, fc, post1c, [-4., -2], [-1, 0], [1, 2])
self.assertRaises(ValueError, fc, post1c, [-4., -2], [-1, 0], [2, 1])
self.assertRaises(ValueError, fc, post1c, [-4., -2], [-1], [1])
def setUp(self):
self.rng = numpy.random.RandomState(seed=utt.fetch_seed())
def test_extract_diag_grad():
rng = numpy.random.RandomState(utt.fetch_seed())
x = rng.rand(5, 4)
tensor.verify_grad(extract_diag, [x], rng=rng)
# print "CPU time: %.3f, GPU time: %.3f, speed up %f" % (
# (time_cpu, time_gpu, time_cpu/time_gpu))
# print "Estimated time for one pass through MNIST with CPU: %f" % (
# (time_cpu * (60000.0 / (n_train*bsize))))
# print "Estimated time for one pass through MNIST with GPU: %f" % (
# (time_gpu * (60000.0 / (n_train*bsize))))
# Default parameters for all subsequent tests
gpu_only = False
cpu_only = False
ignore_error = False
verbose = 0
version = -1
seed = utt.fetch_seed()
def test_lenet_28(): # MNIST
cmp_run_conv_nnet2_classif(seed, 28, 5, 60, n_train=10,
ignore_error=ignore_error, gpu_only=gpu_only,
cpu_only=cpu_only, verbose=verbose, version=version)
def test_lenet_32(): # CIFAR10 / Shapeset
cmp_run_conv_nnet2_classif(seed, 32, 5, 60, n_train=8,
ignore_error=ignore_error, gpu_only=gpu_only,
verbose=verbose, version=version)
def test_lenet_32_long(): # CIFAR10 / Shapeset
def test_det_grad():
rng = numpy.random.RandomState(utt.fetch_seed())
r = rng.randn(5, 5).astype(config.floatX)
tensor.verify_grad(det, [r], rng=numpy.random)
enable_cuda=False)
theano.sandbox.gpuarray.init_dev('cuda')
if not theano.sandbox.gpuarray.pygpu_activated:
raise SkipTest("pygpu disabled")
from ..type import (GpuArrayType, gpuarray_shared_constructor)
from ..basic_ops import (host_from_gpu, gpu_from_host, gpu_alloc, GpuAlloc,
gpu_from_cuda, cuda_from_gpu, HostFromGpu,
GpuContiguous, GpuFromHost, GpuReshape, gpu_join,
GpuJoin, GpuSplit, GpuEye, gpu_contiguous)
from ..subtensor import GpuSubtensor
from theano.tests import unittest_tools as utt
utt.seed_rng()
rng = numpy.random.RandomState(seed=utt.fetch_seed())
from pygpu import gpuarray
if theano.config.mode == 'FAST_COMPILE':
mode_with_gpu = theano.compile.mode.get_mode('FAST_RUN').including(
'gpuarray').excluding('gpu')
mode_without_gpu = theano.compile.mode.get_mode('FAST_RUN').excluding(
'gpuarray')
else:
mode_with_gpu = theano.compile.mode.get_default_mode().including(
'gpuarray').excluding('gpu')
mode_without_gpu = theano.compile.mode.get_default_mode().excluding(
'gpuarray')
def test_specify_shape_inplace(self):
# test that specify_shape don't break inserting inplace op
dtype = self.dtype
if dtype is None:
dtype = theano.config.floatX
rng = np.random.RandomState(utt.fetch_seed())
a = np.asarray(rng.uniform(1, 2, [40, 40]), dtype=dtype)
a = self.cast_value(a)
a_shared = self.shared_constructor(a)
b = np.asarray(rng.uniform(1, 2, [40, 40]), dtype=dtype)
b = self.cast_value(b)
b_shared = self.shared_constructor(b)
s = np.zeros((40, 40), dtype=dtype)
s = self.cast_value(s)
s_shared = self.shared_constructor(s)
f = theano.function([],
updates=[
(s_shared,
theano.dot(a_shared, b_shared) + s_shared)
])
topo = f.maker.fgraph.toposort()
f()
# [Gemm{inplace}(<TensorType(float64, matrix)>, 0.01, <TensorType(float64, matrix)>, <TensorType(float64, matrix)>, 2e-06)]
if theano.config.mode != 'FAST_COMPILE':
assert sum([
node.op.__class__.__name__
in ["Gemm", "GpuGemm", "StructuredDot"] for node in topo
]) == 1
assert all(node.op == tensor.blas.gemm_inplace for node in topo
if isinstance(node.op, tensor.blas.Gemm))
assert all(node.op.inplace for node in topo
if node.op.__class__.__name__ == "GpuGemm")
# Their is no inplace gemm for sparse
# assert all(node.op.inplace for node in topo if node.op.__class__.__name__ == "StructuredDot")
s_shared_specify = tensor.specify_shape(
s_shared,
s_shared.get_value(borrow=True).shape)
# now test with the specify shape op in the output
f = theano.function([],
s_shared.shape,
updates=[(s_shared,
theano.dot(a_shared, b_shared) +
s_shared_specify)])
topo = f.maker.fgraph.toposort()
shp = f()
assert np.all(shp == (40, 40))
if theano.config.mode != 'FAST_COMPILE':
assert sum([
node.op.__class__.__name__
in ["Gemm", "GpuGemm", "StructuredDot"] for node in topo
]) == 1
assert all(node.op == tensor.blas.gemm_inplace for node in topo
if isinstance(node.op, tensor.blas.Gemm))
assert all(node.op.inplace for node in topo
if node.op.__class__.__name__ == "GpuGemm")
# now test with the specify shape op in the inputs and outputs
a_shared = tensor.specify_shape(
a_shared,
a_shared.get_value(borrow=True).shape)
b_shared = tensor.specify_shape(
b_shared,
b_shared.get_value(borrow=True).shape)
f = theano.function([],
s_shared.shape,
updates=[(s_shared,
theano.dot(a_shared, b_shared) +
s_shared_specify)])
topo = f.maker.fgraph.toposort()
shp = f()
assert np.all(shp == (40, 40))
if theano.config.mode != 'FAST_COMPILE':
assert sum([
node.op.__class__.__name__
in ["Gemm", "GpuGemm", "StructuredDot"] for node in topo
]) == 1
assert all(node.op == tensor.blas.gemm_inplace for node in topo
if isinstance(node.op, tensor.blas.Gemm))
assert all(node.op.inplace for node in topo
if node.op.__class__.__name__ == "GpuGemm")
def test_permutation_helper(self):
"""Test that raw_random.permutation_helper generates the same
results as numpy,
and that the 'ndim_added' keyword behaves correctly."""
# permutation_helper needs "ndim_added=1", because its output
# is one dimension more than its "shape" argument (and there's
# no way to determine that automatically).
# Check the working case, over two calls to see if the random
# state is correctly updated.
rf = RandomFunction(permutation_helper,
tensor.imatrix,
8,
ndim_added=1)
rng_R = random_state_type()
post_r, out = rf(rng_R, (7, ), 8)
f = compile.function([
compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=post_r,
mutable=True)
], [out],
accept_inplace=True)
numpy_rng = numpy.random.RandomState(utt.fetch_seed())
val0 = f()
val1 = f()
# numpy_rng.permutation outputs one vector at a time,
# so we call it iteratively to generate all the samples.
numpy_val0 = numpy.asarray(
[numpy_rng.permutation(8) for i in range(7)])
numpy_val1 = numpy.asarray(
[numpy_rng.permutation(8) for i in range(7)])
print val0
print numpy_val0
print val1
print numpy_val1
self.assertTrue(numpy.all(val0 == numpy_val0))
self.assertTrue(numpy.all(val1 == numpy_val1))
# This call lacks "ndim_added=1", so ndim_added defaults to 0.
# A ValueError should be raised.
rf0 = RandomFunction(permutation_helper, tensor.imatrix, 8)
post_r0, out0 = rf0(rng_R, (7, ), 8)
f0 = compile.function([
compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=post_r0,
mutable=True)
], [out0],
accept_inplace=True)
self.assertRaises(ValueError, f0)
# Here, ndim_added is 2 instead of 1. A ValueError should be raised.
rf2 = RandomFunction(permutation_helper,
tensor.imatrix,
8,
ndim_added=2)
post_r2, out2 = rf2(rng_R, (7, ), 8)
f2 = compile.function([
compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=post_r2,
mutable=True)
], [out2],
accept_inplace=True)
self.assertRaises(ValueError, f2)
def test_dimshuffle(self):
utt.seed_rng()
rng = numpy.random.RandomState(utt.fetch_seed())
# 2d -> 0d
a = theano._asarray(rng.randn(1, 1), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
assert numpy.allclose(numpy.transpose(a),
cuda_ndarray.dimshuffle(b, ()))
# Test when we drop a axis that don't have shape 1
a = theano._asarray(rng.randn(2, 1), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
self.assertRaises(ValueError, cuda_ndarray.dimshuffle, b, ())
# Test that we can't take a dimensions multiple time
a = theano._asarray(rng.randn(2, 1), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
self.assertRaises(ValueError, cuda_ndarray.dimshuffle, b, (1, 1))
# 1d
a = theano._asarray(rng.randn(3, ), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
assert numpy.allclose(numpy.transpose(a),
cuda_ndarray.dimshuffle(b, (0, )))
assert numpy.allclose(a[None, :, None],
cuda_ndarray.dimshuffle(b, (-1, 0, -1)))
# 2d
a = theano._asarray(rng.randn(3, 11), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
assert numpy.allclose(numpy.transpose(a),
cuda_ndarray.dimshuffle(b, (1, 0)))
assert numpy.allclose(
numpy.transpose(a)[None, :, None, :, None],
cuda_ndarray.dimshuffle(b, (-1, 1, -1, 0, -1)))
# 2d -> 1d
a = theano._asarray(rng.randn(1, 11), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
assert numpy.allclose(a[:], cuda_ndarray.dimshuffle(b, (1, )))
a = theano._asarray(rng.randn(11, 1), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
assert numpy.allclose(a.reshape((11, )),
cuda_ndarray.dimshuffle(b, (0, )))
# 3d
a = theano._asarray(rng.randn(3, 4, 5), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
assert numpy.allclose(a, cuda_ndarray.dimshuffle(b, (0, 1, 2)))
assert numpy.allclose(numpy.swapaxes(a, 0, 1),
cuda_ndarray.dimshuffle(b, (1, 0, 2)))
assert numpy.allclose(numpy.swapaxes(a, 0, 2),
cuda_ndarray.dimshuffle(b, (2, 1, 0)))
assert numpy.allclose(numpy.swapaxes(a, 1, 2),
cuda_ndarray.dimshuffle(b, (0, 2, 1)))
assert numpy.allclose(
numpy.swapaxes(a, 1, 2)[None, :, None, :, :, None],
cuda_ndarray.dimshuffle(b, (-1, 0, -1, 2, 1, -1)))
# 4d
a = theano._asarray(rng.randn(3, 11, 4, 5), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
assert numpy.allclose(numpy.swapaxes(a, 0, 1),
cuda_ndarray.dimshuffle(b, (1, 0, 2, 3)))
assert numpy.allclose(numpy.swapaxes(a, 0, 2),
cuda_ndarray.dimshuffle(b, (2, 1, 0, 3)))
assert numpy.allclose(numpy.swapaxes(a, 0, 3),
cuda_ndarray.dimshuffle(b, (3, 1, 2, 0)))
assert numpy.allclose(numpy.swapaxes(a, 0, 3),
cuda_ndarray.dimshuffle(b, (3, 1, 2, 0)))
assert numpy.allclose(
numpy.swapaxes(a, 0, 3)[None, :, None, :, :, :],
cuda_ndarray.dimshuffle(b, (-1, 3, -1, 1, 2, 0)))
def test_reshape():
shapelist = [((1, 2, 3), (1, 2, 3)), ((1, ), (1, )),
((1, 2, 3), (3, 2, 1)), ((1, 2, 3), (6, )),
((1, 2, 3, 2), (6, 2)), ((2, 3, 2), (6, 2)),
((2, 3, 2), (12, ))]
bad_shapelist = [((1, 2, 3), (1, 2, 4)), ((1, ), (2, )),
((1, 2, 3), (2, 2, 1)), ((1, 2, 3), (5, )),
((1, 2, 3, 2), (6, 3)), ((2, 3, 2), (5, 2)),
((2, 3, 2), (11, ))]
utt.seed_rng()
rng = numpy.random.RandomState(utt.fetch_seed())
def subtest(shape_1, shape_2, rng):
#print >> sys.stdout, "INFO: shapes", shape_1, shape_2
a = theano._asarray(rng.randn(*shape_1), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
aa = a.reshape(shape_2)
bb = b.reshape(shape_2)
n_bb = numpy.asarray(bb)
# print n_bb
assert numpy.all(aa == n_bb)
assert aa.shape == n_bb.shape
# Test the not contiguous case
shape_1_2x = (shape_1[0] * 2, ) + shape_1[1:]
a = theano._asarray(rng.randn(*shape_1_2x), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
a = a[::2]
b = b[::2]
aa = a.reshape(shape_2)
bb = b.reshape(shape_2)
n_bb = numpy.asarray(bb)
# print n_bb
assert numpy.all(aa == n_bb)
assert aa.shape == n_bb.shape
def bad_subtest(shape_1, shape_2, rng):
a = theano._asarray(rng.randn(*shape_1), dtype='float32')
b = cuda_ndarray.CudaNdarray(a)
try:
bb = b.reshape(shape_2)
except Exception as ValueError:
return
assert False
# test working shapes
for shape_1, shape_2 in shapelist:
subtest(shape_1, shape_2, rng)
subtest(shape_2, shape_1, rng)
# test shape combinations that should give error
for shape_1, shape_2 in bad_shapelist:
bad_subtest(shape_1, shape_2, rng)
bad_subtest(shape_2, shape_1, rng)
def new_run(self,
inputs_info,
states_info,
parameters_info,
n_outputs,
n_shared_updates):
"""Generates a test for scan.
:param inputs_info: list of lists of dictionaries
Each list of dictionary represents one input sequence. Each
dictionary is one tap of that sequence. The dictionary has two
keys. ``use`` is either True or False, and it indicates if this
tap should be used in the inner graph or not. ``tap`` is the tap
value.
:param states_info: list of lists of dictionaries
see param ``inputs_info``. ``states_info`` has the same
semantics, just that it is for states and not for inputs
:param paramters_info: list of dictionary
Each dictionary is a different parameter. It has only one key,
namely ``use`` which says if the parameter should be used
internally or not
:param n_outputs: int
Number of pure outputs for scan
:param n_shared_updates: int
Number of shared variable with updates. They are all numeric.
"""
# Check the scan node has at least one output
if n_outputs + n_shared_updates + len(states_info) == 0:
return
rng = numpy.random.RandomState(utt.fetch_seed())
n_ins = len(inputs_info)
inputs = [tensor.matrix('u%d' % k) for k in xrange(n_ins)]
scan_inputs = []
for inp, info in zip(inputs, inputs_info):
scan_inputs.append(dict(input=inp, taps=[x['tap'] for x in
info]))
n_states = len(states_info)
scan_states = []
states = []
for info in states_info:
if len(info) == 1 and info[0]['tap'] == -1:
state = tensor.vector('x%d' % k)
states.append(state)
scan_states.append(state)
else:
state = tensor.matrix('x%d' % k)
states.append(state)
scan_states.append(
dict(initial=state, taps=[x['tap'] for x in info]))
n_parameters = len(parameters_info)
parameters = [tensor.vector('p%d' % k) for k in xrange(n_parameters)]
original_shared_values = []
shared_vars = []
for k in xrange(n_shared_updates):
data = rng.uniform(size=(4,)).astype(theano.config.floatX)
original_shared_values.append(data)
shared_vars.append(theano.shared(data, name='z%d' % k))
def inner_function(*args):
"""
Functions that constructs the inner graph of scan
"""
arg_pos = 0
to_add = None
for in_info in inputs_info:
for info in in_info:
arg = args[arg_pos]
arg_pos += 1
# Construct dummy graph around input
if info['use']:
if to_add is None:
to_add = arg * 2
else:
to_add = to_add + arg * 2
states_out = [to_add] * n_states
for dx, st_info in enumerate(states_info):
for info in st_info:
arg = args[arg_pos]
arg_pos += 1
if info['use']:
if states_out[dx]:
states_out[dx] = states_out[dx] + arg * 3
else:
states_out[dx] = arg * 3
for info in parameters_info:
arg = args[arg_pos]
arg_pos += 1
if info['use']:
if to_add is None:
to_add = arg * 4
else:
to_add = to_add + arg * 4
if to_add is not None:
shared_outs = [sh * 5 + to_add for sh in shared_vars]
rval = []
for arg in states_out:
if arg is None:
rval.append(to_add)
else:
rval.append(arg + to_add)
states_out = rval
pure_outs = [to_add ** 2 for x in xrange(n_outputs)]
else:
shared_outs = [sh * 5 for sh in shared_vars]
states_out = [x for x in states_out]
pure_outs = [2 for x in xrange(n_outputs)]
return states_out + pure_outs, dict(izip(shared_vars, shared_outs))
def execute_inner_graph(*args):
"""
Functions that computes numerically the values that scan should
return
"""
# Check if you need to go back in time over the sequences (the
# first argument is n_steps, the second is go_backwards)
nsteps = args[0]
invert = False
if args[1]:
nsteps = nsteps * -1
if nsteps < 0:
new_ins = [x[::-1] for x in args[2: 2 + n_ins]]
else:
new_ins = [x for x in args[2: 2 + n_ins]]
nsteps = abs(nsteps)
# Simplify the inputs by slicing them according to the taps
nw_inputs = []
for inp, info in zip(new_ins, inputs_info):
taps = [x['tap'] for x in info]
if numpy.min(taps) < 0:
_offset = abs(numpy.min(taps))
else:
_offset = 0
nw_inputs += [inp[_offset + k:] for k in taps]
# Simplify the states by slicing them according to the taps.
# Note that if the memory buffer for the inputs and outputs is
# the same, by changing the outputs we also change the outputs
nw_states_inputs = []
nw_states_outs = []
for st, info in zip(args[2 + n_ins:2 + n_ins + n_states],
states_info):
taps = [x['tap'] for x in info]
membuf = numpy.zeros((nsteps + abs(numpy.min(taps)), 4))
if abs(numpy.min(taps)) != 1:
membuf[:abs(numpy.min(taps))] = st[:abs(numpy.min(taps))]
else:
membuf[:abs(numpy.min(taps))] = st
nw_states_inputs += [membuf[abs(numpy.min(taps)) + k:]
for k in taps]
nw_states_outs.append(membuf[abs(numpy.min(taps)):])
parameters_vals = args[2 + n_ins + n_states:]
out_mem_buffers = [numpy.zeros((nsteps, 4)) for k in
xrange(n_outputs)]
shared_values = [x.copy() for x in original_shared_values]
for step in xrange(nsteps):
arg_pos = 0
to_add = None
for in_info in inputs_info:
for info in in_info:
arg = nw_inputs[arg_pos][step]
arg_pos += 1
# Construct dummy graph around input
if info['use']:
if to_add is None:
to_add = arg * 2
else:
to_add = to_add + arg * 2
arg_pos = 0
for dx, st_info in enumerate(states_info):
if to_add is not None:
nw_states_outs[dx][step] = to_add
for info in st_info:
arg = nw_states_inputs[arg_pos][step]
arg_pos += 1
if info['use']:
nw_states_outs[dx][step] += arg * 3
for arg, info in zip(parameters_vals, parameters_info):
if info['use']:
if to_add is None:
to_add = arg * 4
else:
to_add = to_add + arg * 4
if to_add is not None:
shared_values = [sh * 5 + to_add for sh in shared_values]
for state in nw_states_outs:
state[step] += to_add
for out in out_mem_buffers:
out[step] = to_add ** 2
else:
shared_values = [sh * 5 for sh in shared_values]
for out in out_mem_buffers:
out[step] = 2
return nw_states_outs + out_mem_buffers, shared_values
possible_n_steps = [-1, 1, 5, -5]
if n_ins > 0:
possible_n_steps.append(None)
for n_steps in [-1, 1, 5, -5, None]:
for go_backwards in [True, False]:
outputs, updates = scan_module.scan(
inner_function,
sequences=scan_inputs,
outputs_info=scan_states,
non_sequences=parameters,
n_steps=n_steps,
go_backwards=go_backwards,
truncate_gradient=-1)
my_f = theano.function(inputs + states + parameters,
outputs,
updates=updates,
allow_input_downcast=True)
if n_steps is not None and abs(n_steps) == 1:
all_nodes = my_f.maker.fgraph.toposort()
assert len([x for x in all_nodes
if isinstance(x.op, ScanOp)]) == 0
print(' n_steps', n_steps, file=sys.stderr)
print(' go_backwards', go_backwards, file=sys.stderr)
print(' Scenario 1. Correct shape', file=sys.stderr)
if n_steps is not None:
_n_steps = n_steps
else:
_n_steps = 8
# Generating data
# Scenario 1 : Good fit shapes
input_values = []
for info in inputs_info:
taps = [x['tap'] for x in info]
offset = 0
if len([x for x in taps if x < 0]) > 0:
offset += abs(numpy.min([x for x in taps if x < 0]))
if len([x for x in taps if x > 0]) > 0:
offset += numpy.max([x for x in taps if x > 0])
data = rng.uniform(size=(abs(_n_steps) + offset, 4))
input_values.append(data)
state_values = []
for info in states_info:
taps = [x['tap'] for x in info]
offset = abs(numpy.min(taps))
if offset > 1:
data = rng.uniform(size=(offset, 4))
else:
data = rng.uniform(size=(4,))
data = numpy.arange(4)
state_values.append(data)
param_values = [rng.uniform(size=(4,)) for k in
xrange(n_parameters)]
param_values = [numpy.arange(4) for k in
xrange(n_parameters)]
for var, val in zip(shared_vars, original_shared_values):
var.set_value(val)
theano_outs = my_f(*(input_values + state_values +
param_values))
args = ([_n_steps, go_backwards] +
input_values +
state_values +
param_values)
rvals = execute_inner_graph(*args)
numpy_outs, numpy_shared = rvals
assert len(numpy_outs) == len(theano_outs)
assert len(numpy_shared) == len(shared_vars)
for th_out, num_out in zip(theano_outs, numpy_outs):
try:
assert numpy.allclose(th_out, num_out)
except Exception:
#import ipdb; ipdb.set_trace()
raise
for th_out, num_out in zip(shared_vars, numpy_shared):
try:
assert numpy.allclose(th_out.get_value(), num_out)
except Exception:
#import ipdb; ipdb.set_trace()
raise
# Scenario 2 : Loose fit (sequences longer then required)
print(' Scenario 2. Loose shapes', file=sys.stderr)
input_values = []
for pos, info in enumerate(inputs_info):
taps = [x['tap'] for x in info]
offset = 0
if len([x for x in taps if x < 0]) > 0:
offset += abs(numpy.min([x for x in taps if x < 0]))
if len([x for x in taps if x > 0]) > 0:
offset += numpy.max([x for x in taps if x > 0])
if n_steps is not None:
# loose inputs make sense only when n_steps is
# defined
data = rng.uniform(
size=(abs(_n_steps) + offset + pos + 1, 4))
else:
data = rng.uniform(size=(abs(_n_steps) + offset, 4))
input_values.append(data)
state_values = []
for pos, info in enumerate(states_info):
taps = [x['tap'] for x in info]
offset = abs(numpy.min(taps))
if offset > 1:
data = rng.uniform(size=(offset + pos + 1, 4))
else:
data = rng.uniform(size=(4,))
state_values.append(data)
param_values = [rng.uniform(size=(4,)) for k in
xrange(n_parameters)]
for var, val in zip(shared_vars, original_shared_values):
var.set_value(val)
theano_outs = my_f(*(input_values + state_values +
param_values))
args = ([_n_steps, go_backwards] +
input_values +
state_values +
param_values)
rvals = execute_inner_graph(*args)
numpy_outs, numpy_shared = rvals
assert len(numpy_outs) == len(theano_outs)
assert len(numpy_shared) == len(shared_vars)
for th_out, num_out in zip(theano_outs, numpy_outs):
assert numpy.allclose(th_out, num_out)
for th_out, num_out in zip(shared_vars, numpy_shared):
assert numpy.allclose(th_out.get_value(), num_out)
# Scenario 3 : Less data then required
print(' Scenario 2. Wrong shapes', file=sys.stderr)
input_values = []
for pos, info in enumerate(inputs_info):
taps = [x['tap'] for x in info]
offset = 0
if len([x for x in taps if x < 0]) > 0:
offset += abs(numpy.min([x for x in taps if x < 0]))
if len([x for x in taps if x > 0]) > 0:
offset += numpy.max([x for x in taps if x > 0])
data = rng.uniform(size=(abs(_n_steps) + offset - 1, 4))
input_values.append(data)
state_values = []
for pos, info in enumerate(states_info):
taps = [x['tap'] for x in info]
offset = abs(numpy.min(taps))
data = rng.uniform(size=(offset - 1, 4))
state_values.append(data)
param_values = [rng.uniform(size=(4,)) for k in
xrange(n_parameters)]
for var, val in zip(shared_vars, original_shared_values):
var.set_value(val)
self.assertRaises(Exception, my_f,
inputs + state_values + param_values)
def test001_generate_tests(self):
rng = numpy.random.RandomState(utt.fetch_seed())
all_inputs_info = [[]]
possible_taps_use_pairs = [[dict(tap=0, use=True)],
[dict(tap=0, use=False)],
[dict(tap=-3, use=True),
dict(tap=-1, use=True)],
[dict(tap=-3, use=True),
dict(tap=-1, use=False)],
[dict(tap=-3, use=False),
dict(tap=-1, use=False)],
[dict(tap=-2, use=True),
dict(tap=0, use=True)],
[dict(tap=-2, use=False),
dict(tap=0, use=True)],
[dict(tap=-2, use=False),
dict(tap=0, use=False)],
[dict(tap=0, use=True),
dict(tap=3, use=True)],
[dict(tap=2, use=True),
dict(tap=3, use=True)],
[dict(tap=-2, use=True),
dict(tap=3, use=True)]]
test_nb = 0
for n_ins in [1, 2]:
# Randomly pick up 4*n_ins combinations of arguments
for k in xrange(4 * n_ins):
inp = []
for inp_nb in xrange(n_ins):
pos = rng.randint(len(possible_taps_use_pairs))
inp.append(possible_taps_use_pairs[pos])
all_inputs_info.append(inp)
all_states_info = [[]]
possible_taps_use_pairs = [[dict(tap=-1, use=True)],
[dict(tap=-1, use=False)],
[dict(tap=-3, use=True)],
[dict(tap=-3, use=False)],
[dict(tap=-3, use=True),
dict(tap=-1, use=True)],
[dict(tap=-3, use=True),
dict(tap=-1, use=False)],
[dict(tap=-3, use=False),
dict(tap=-1, use=False)],
[dict(tap=-4, use=True),
dict(tap=-2, use=True)],
[dict(tap=-4, use=False),
dict(tap=-2, use=True)]]
for n_ins in [1, 2]:
# Randomly pick up 4*n_ins combinations of arguments
for k in xrange(4 * n_ins):
state = []
for state_nb in xrange(n_ins):
pos = rng.randint(len(possible_taps_use_pairs))
state.append(possible_taps_use_pairs[pos])
all_states_info.append(state)
all_parameters_info = [[],
[dict(use=False)],
[dict(use=True)],
[dict(use=True), dict(use=True)],
[dict(use=True), dict(use=False)]]
# This generates errors related to some unfixed bug in the current
# version of scan
# The test will also have to be changesd following some further
# restriction of scan and reduction of the number of corner cases
return
for n_outputs in [0, 1, 2]:
for n_shared_updates in [0, 1, 2]:
for n_random_combinations in xrange(1):
pos_inp = rng.randint(len(all_inputs_info))
pos_st = rng.randint(len(all_states_info))
pos_param = rng.randint(len(all_parameters_info))
print(file=sys.stderr)
print('Test nb', test_nb, file=sys.stderr)
print(' inputs', all_inputs_info[pos_inp], file=sys.stderr)
print(' states', all_states_info[pos_st], file=sys.stderr)
print(' parameters', \
all_parameters_info[pos_param], file=sys.stderr)
print(' n_outputs', n_outputs, file=sys.stderr)
print(' n_shared_updates', n_shared_updates, file=sys.stderr)
test_nb += 1
self.new_run(inputs_info=all_inputs_info[pos_inp],
states_info=all_states_info[pos_st],
parameters_info=all_parameters_info[pos_param],
n_outputs=n_outputs,
n_shared_updates=n_shared_updates)
def setUp(self):
super(TestConv3D, self).setUp()
utt.seed_rng()
self.rng = N.random.RandomState(utt.fetch_seed())
mode = copy.copy(theano.compile.mode.get_default_mode())
mode.check_py_code = False
self.W = shared(N.ndarray(shape=(1, 1, 1, 1, 1), dtype=floatX))
self.W.name = 'W'
self.b = shared(N.zeros(1, dtype=floatX))
self.b.name = 'b'
self.rb = shared(N.zeros(1, dtype=floatX))
self.rb.name = 'rb'
self.V = shared(N.ndarray(shape=(1, 1, 1, 1, 1), dtype=floatX))
self.V.name = 'V'
self.d = shared(N.ndarray(shape=(3, ), dtype=int))
self.d.name = 'd'
self.H = conv3D(self.V, self.W, self.b, self.d)
self.H.name = 'H'
self.H_func = function([], self.H, mode=mode)
self.H_shape_func = function([], self.H.shape, mode=mode)
self.RShape = T.vector(dtype='int64')
self.RShape.name = 'RShape'
self.otherH = T.TensorType(floatX,
(False, False, False, False, False))(name='otherH')
self.transp = convTransp3D(self.W, self.rb, self.d,
self.otherH, self.RShape)
self.transp.name = 'transp'
self.transp_func = function([self.otherH, self.RShape],
self.transp, mode=mode)
self.R = convTransp3D(self.W, self.rb, self.d, self.H, self.RShape)
self.R.name = 'R'
self.R_func = function([self.RShape], self.R, mode=mode)
self.R_shape_func = function([self.RShape], self.R.shape)
diff = self.V - self.R
diff.name = 'diff'
sqr = T.sqr(diff)
sqr.name = 'sqr'
self.reconsObj = T.sum(sqr)
self.reconsObj.name = 'reconsObj'
self.reconsObjFunc = function([self.RShape], self.reconsObj, mode=mode)
W_grad = T.grad(self.reconsObj, self.W)
self.gradientsFunc = function([self.RShape],
[W_grad, T.grad(self.reconsObj,
self.H), T.grad(self.reconsObj, self.V),
T.grad(self.reconsObj, self.b)], mode=mode)
self.check_c_against_python = function([self.RShape],
[T.grad(self.reconsObj, self.W), T.grad(self.reconsObj,
self.H), T.grad(self.reconsObj, self.V),
T.grad(self.reconsObj, self.b)], mode='DEBUG_MODE')
self.dCdW_shape_func = function([self.RShape],
T.grad(self.reconsObj, self.W).shape, mode=mode)
def setUp(self):
utt.seed_rng()
self.rng = np.random.RandomState(seed=utt.fetch_seed())
def setUp(self):
super(test_MatrixInverse, self).setUp()
self.op_class = MatrixInverse
self.op = matrix_inverse
self.rng = numpy.random.RandomState(utt.fetch_seed())
def test_shuffle_row_elements(self):
"""Test that RandomStreams.shuffle_row_elements generates the right results"""
# Check over two calls to see if the random state is correctly updated.
# On matrices, for each row, the elements of that row should be
# shuffled.
# Note that this differs from numpy.random.shuffle, where all the
# elements of the matrix are shuffled.
mm = Module()
mm.random = RandomStreams(utt.fetch_seed())
m_input = tensor.dmatrix()
mm.f = Method([m_input], mm.random.shuffle_row_elements(m_input))
mmade = mm.make()
mmade.random.initialize()
# Generate the elements to be shuffled
val_rng = numpy.random.RandomState(utt.fetch_seed() + 42)
in_mval = val_rng.uniform(-2, 2, size=(20, 5))
fn_mval0 = mmade.f(in_mval)
fn_mval1 = mmade.f(in_mval)
print in_mval[0]
print fn_mval0[0]
print fn_mval1[0]
assert not numpy.all(in_mval == fn_mval0)
assert not numpy.all(in_mval == fn_mval1)
assert not numpy.all(fn_mval0 == fn_mval1)
rng_seed = numpy.random.RandomState(utt.fetch_seed()).randint(2**30)
rng = numpy.random.RandomState(int(rng_seed))
numpy_mval0 = in_mval.copy()
numpy_mval1 = in_mval.copy()
for row in numpy_mval0:
rng.shuffle(row)
for row in numpy_mval1:
rng.shuffle(row)
assert numpy.all(numpy_mval0 == fn_mval0)
assert numpy.all(numpy_mval1 == fn_mval1)
# On vectors, the behaviour is the same as numpy.random.shuffle,
# except that it does not work in place, but returns a shuffled vector.
vm = Module()
vm.random = RandomStreams(utt.fetch_seed())
v_input = tensor.dvector()
vm.f = Method([v_input], vm.random.shuffle_row_elements(v_input))
vmade = vm.make()
vmade.random.initialize()
in_vval = val_rng.uniform(-3, 3, size=(12, ))
fn_vval = vmade.f(in_vval)
numpy_vval = in_vval.copy()
vrng = numpy.random.RandomState(int(rng_seed))
vrng.shuffle(numpy_vval)
print in_vval
print fn_vval
print numpy_vval
assert numpy.all(numpy_vval == fn_vval)
# Trying to shuffle a vector with function that should shuffle
# matrices, or vice versa, raises a TypeError
self.assertRaises(TypeError, vmade.f, in_mval)
self.assertRaises(TypeError, mmade.f, in_vval)
def test_extract_diag_grad(self):
rng = numpy.random.RandomState(utt.fetch_seed())
x = rng.rand(5, 4).astype(self.floatX)
tensor.verify_grad(extract_diag, [x], rng=rng)
def test_specify_shape(self):
dtype = self.dtype
if dtype is None:
dtype = theano.config.floatX
rng = np.random.RandomState(utt.fetch_seed())
x1_1 = np.asarray(rng.uniform(1, 2, [4, 2]), dtype=dtype)
x1_1 = self.cast_value(x1_1)
x1_2 = np.asarray(rng.uniform(1, 2, [4, 2]), dtype=dtype)
x1_2 = self.cast_value(x1_2)
x2 = np.asarray(rng.uniform(1, 2, [4, 3]), dtype=dtype)
x2 = self.cast_value(x2)
# Test that we can replace with values of the same shape
x1_shared = self.shared_constructor(x1_1)
x1_specify_shape = tensor.specify_shape(x1_shared, x1_1.shape)
x1_shared.set_value(x1_2)
assert np.allclose(self.ref_fct(x1_shared.get_value(borrow=True)),
self.ref_fct(x1_2))
shape_op_fct = theano.function([], x1_shared.shape)
topo = shape_op_fct.maker.fgraph.toposort()
if theano.config.mode != 'FAST_COMPILE':
assert len(topo) == 3
assert isinstance(topo[0].op, tensor.opt.Shape_i)
assert isinstance(topo[1].op, tensor.opt.Shape_i)
assert isinstance(topo[2].op, tensor.opt.MakeVector)
# Test that we forward the input
specify_shape_fct = theano.function([], x1_specify_shape)
assert np.all(
self.ref_fct(specify_shape_fct()) == self.ref_fct(x1_2))
topo_specify = specify_shape_fct.maker.fgraph.toposort()
assert len(topo_specify) == 2
# Test that we put the shape info into the graph
shape_constant_fct = theano.function([], x1_specify_shape.shape)
assert np.all(shape_constant_fct() == shape_op_fct())
topo_cst = shape_constant_fct.maker.fgraph.toposort()
if theano.config.mode != 'FAST_COMPILE':
assert len(topo_cst) == 1
topo_cst[0].op == theano.compile.function_module.deep_copy_op
# Test that we can take the grad.
if (theano.sparse.enable_sparse and isinstance(
x1_specify_shape.type, theano.sparse.SparseType)):
# SparseVariable don't support sum for now.
assert not hasattr(x1_specify_shape, 'sum')
else:
shape_grad = tensor.grad(x1_specify_shape.sum(), x1_shared)
shape_constant_fct_grad = theano.function([], shape_grad)
# theano.printing.debugprint(shape_constant_fct_grad)
shape_constant_fct_grad()
# Test that we can replace with values of the different shape
# but that will raise an error in some case, but not all
specify_shape_fct()
x1_shared.set_value(x2)
self.assertRaises(AssertionError, specify_shape_fct)
# No assertion will be raised as the Op is removed from the graph
# when their is optimization
if theano.config.mode not in [
'FAST_COMPILE', 'DebugMode', 'DEBUG_MODE'
]:
shape_constant_fct()
else:
self.assertRaises(AssertionError, shape_constant_fct)
def test_WEIRD_STUFF():
n_vis = 3
rng = N.random.RandomState(unittest_tools.fetch_seed(7722342))
x = rng.randn(10,n_vis)
y = rng.randn(10,n_vis)
#set y to be like x with a lag of LAG
LAG = 4
y[LAG:] = x[:-LAG, 0:n_vis]
minimizer_fn1 = sgd_minimizer(stepsize = 0.001, WEIRD_STUFF = False)
minimizer_fn2 = sgd_minimizer(stepsize = 0.001, WEIRD_STUFF = True)
rnn_module1 = ExampleRNN(n_vis, minimizer_fn1)
rnn_module2 = ExampleRNN(n_vis, minimizer_fn2)
rnn1 = rnn_module1.make(mode='FAST_RUN')
# rnn2 = rnn_module1.make(mode='FAST_COMPILE')#work
# rnn2 = rnn_module1.make(mode='FAST_RUN')#fail
rnn2 = rnn_module2.make(mode=Mode('c|py', 'fast_run'))#fail
# rnn2 = rnn_module1.make(mode=Mode('c|py', 'fast_run').excluding("inplace"))#work
# rnn2 = rnn_module1.make(mode=Mode('c|py', 'fast_compile'))#work
# rnn2 = rnn_module1.make(mode=Mode('py', 'fast_run_stable'))#work
# rnn2 = rnn_module1.make(mode=Mode('py', 'merge'))#work
# rnn2 = rnn_module1.make(mode=Mode('c|py', 'fast_run').excluding("inplace_opt"))#work
# rnn2 = rnn_module1.make(mode=Mode('py', 'fast_run'))#fail
m = Mode('py', 'fast_run')
# for n in m.optimizer: print n.name
if 0:
topo1=rnn1.minimizer.step_cost.maker.fgraph.toposort()
topo2=rnn2.minimizer.step_cost.maker.fgraph.toposort()
for i in range(len(topo1)):
print '1',i, topo1[i]
print '2',i, topo2[i]
if 0:
topo1=rnn1.minimizer.step.maker.fgraph.toposort()
topo2=rnn2.minimizer.step.maker.fgraph.toposort()
for i in range(len(topo1)):
print '1',i, topo1[i]
print '2',i, topo2[i]
import theano.printing
#print len(rnn1.minimizer.step.maker.inputs)
#print len(rnn2.minimizer.step.maker.inputs)
#print rnn1.minimizer.step.maker.inputs
#print rnn2.minimizer.step.maker.inputs
# for i in range(1,len(rnn1.minimizer.step.maker.inputs)):
# print "valid update:",theano.printing.pp(rnn1.minimizer.step.maker.inputs[i].update),
# print rnn1.minimizer.step.maker.inputs[i].update.name
# print "other update",theano.printing.pp(rnn2.minimizer.step.maker.inputs[i].update),
# print rnn2.minimizer.step.maker.inputs[i].update.name
# print dir(rnn1.minimizer.step.maker.inputs[5].update)
# print dir(rnn2.minimizer.step.maker.inputs[5].update)
niter=3
for i in xrange(niter):
#print rnn1.minimizer.step_cost(x, y)
#print rnn2.minimizer.step_cost(x, y)
# assert rnn1.n_vis != rnn2.n_vis or slef.n_hid != rnn2.n_hid or rnn1.n_out != rnn2.n_out
assert (N.abs(rnn1.z0-rnn2.z0)<1e-8).all()
#print (N.abs(rnn1.w-rnn2.w)<1e-8).all()
#print (N.abs(rnn1.w-rnn2.w))
#print rnn1.w
#print rnn2.w
assert (N.abs(rnn1.w-rnn2.w)<1e-8).all()
def setUp(self):
super(test_Eig, self).setUp()
self.rng = numpy.random.RandomState(utt.fetch_seed())
self.A = theano.tensor.matrix(dtype=self.dtype)
X = numpy.asarray(self.rng.rand(5, 5), dtype=self.dtype)
self.S = X.dot(X.T)
def test_random_function_ndim_added(self):
"""Test that random_function helper function accepts ndim_added as
keyword argument"""
# If using numpy's uniform distribution, ndim_added should be 0,
# because the shape provided as argument is the output shape.
# Specifying a different ndim_added will change the Op's output ndim,
# so numpy.uniform will produce a result of incorrect shape,
# and a ValueError should be raised.
def ndim_added_deco(ndim_added):
def randomfunction(random_state,
size=(),
low=0.0,
high=0.0,
ndim=None):
ndim, size, bcast = raw_random._infer_ndim_bcast(ndim, size)
if ndim_added < 0:
bcast = bcast[:ndim_added]
else:
bcast = bcast + ((False, ) * ndim_added)
assert len(bcast) == ndim + ndim_added
op = RandomFunction('uniform',
tensor.TensorType(dtype='float64',
broadcastable=bcast),
ndim_added=ndim_added)
return op(random_state, size, low, high)
return randomfunction
uni_1 = ndim_added_deco(1)
uni_0 = ndim_added_deco(0)
uni_m1 = ndim_added_deco(-1)
rng_R = random_state_type()
p_uni11, uni11 = uni_1(rng_R, size=(4, ))
p_uni12, uni12 = uni_1(rng_R, size=(3, 4))
p_uni01, uni01 = uni_0(rng_R, size=(4, ))
p_uni02, uni02 = uni_0(rng_R, size=(3, 4))
p_unim11, unim11 = uni_m1(rng_R, size=(4, ))
p_unim12, unim12 = uni_m1(rng_R, size=(3, 4))
self.assertEqual(uni11.ndim, 2)
self.assertEqual(uni12.ndim, 3)
self.assertEqual(uni01.ndim, 1)
self.assertEqual(uni02.ndim, 2)
self.assertEqual(unim11.ndim, 0)
self.assertEqual(unim12.ndim, 1)
f11 = compile.function([
compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=p_uni11,
mutable=True)
], [uni11],
accept_inplace=True)
f12 = compile.function([
compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=p_uni12,
mutable=True)
], [uni12],
accept_inplace=True)
fm11 = compile.function([
compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=p_unim11,
mutable=True)
], [unim11],
accept_inplace=True)
fm12 = compile.function([
compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=p_unim12,
mutable=True)
], [unim12],
accept_inplace=True)
f0 = compile.function([
compile.In(rng_R,
value=numpy.random.RandomState(utt.fetch_seed()),
update=p_uni02,
mutable=True)
], [uni01, uni02],
accept_inplace=True)
self.assertRaises(ValueError, f11)
self.assertRaises(ValueError, f12)
self.assertRaises(ValueError, fm11)
self.assertRaises(ValueError, fm12)
u01, u02 = f0()
print u01
print u02
self.assertTrue(numpy.allclose(u01, u02[0]))
def test_alloc_diag_grad(self):
rng = numpy.random.RandomState(utt.fetch_seed())
x = rng.rand(5)
tensor.verify_grad(alloc_diag, [x], rng=rng)
def test_infer_shape(self):
rng_R = random_state_type()
rng_R_val = numpy.random.RandomState(utt.fetch_seed())
# no shape specified, default args
post_r, out = uniform(rng_R)
self._compile_and_check([rng_R], [out], [rng_R_val], RandomFunction)
post_r, out = uniform(rng_R, size=None, ndim=2)
self._compile_and_check([rng_R], [out], [rng_R_val], RandomFunction)
"""
#infer_shape don't work for multinomial.
#The parameter ndim_added is set to 1 and in this case, the infer_shape
#inplementation don't know how to infer the shape
post_r, out = multinomial(rng_R)
self._compile_and_check([rng_R], [out], [rng_R_val],
RandomFunction)
"""
# no shape specified, args have to be broadcasted
low = tensor.TensorType(dtype='float64',
broadcastable=(False, True, True))()
high = tensor.TensorType(dtype='float64',
broadcastable=(True, True, True, False))()
post_r, out = uniform(rng_R, size=None, ndim=2, low=low, high=high)
low_val = [[[3]], [[4]], [[-5]]]
high_val = [[[[5, 8]]]]
self._compile_and_check([rng_R, low, high], [out],
[rng_R_val, low_val, high_val], RandomFunction)
# multinomial, specified shape
"""
#infer_shape don't work for multinomial
n = iscalar()
pvals = dvector()
size_val = (7, 3)
n_val = 6
pvals_val = [0.2] * 5
post_r, out = multinomial(rng_R, size=size_val, n=n, pvals=pvals,
ndim=2)
self._compile_and_check([rng_R, n, pvals], [out],
[rng_R_val, n_val, pvals_val],
RandomFunction)
"""
# uniform vector low and high
low = dvector()
high = dvector()
post_r, out = uniform(rng_R, low=low, high=1)
low_val = [-5, .5, 0, 1]
self._compile_and_check([rng_R, low], [out], [rng_R_val, low_val],
RandomFunction)
low_val = [.9]
self._compile_and_check([rng_R, low], [out], [rng_R_val, low_val],
RandomFunction)
post_r, out = uniform(rng_R, low=low, high=high)
low_val = [-4., -2]
high_val = [-1, 0]
self._compile_and_check([rng_R, low, high], [out],
[rng_R_val, low_val, high_val], RandomFunction)
low_val = [-4.]
high_val = [-1]
self._compile_and_check([rng_R, low, high], [out],
[rng_R_val, low_val, high_val], RandomFunction)
# uniform broadcasting low and high
low = dvector()
high = dcol()
post_r, out = uniform(rng_R, low=low, high=high)
low_val = [-5, .5, 0, 1]
high_val = [[1.]]
self._compile_and_check([rng_R, low, high], [out],
[rng_R_val, low_val, high_val], RandomFunction)
low_val = [.9]
high_val = [[1.], [1.1], [1.5]]
self._compile_and_check([rng_R, low, high], [out],
[rng_R_val, low_val, high_val], RandomFunction)
low_val = [-5, .5, 0, 1]
high_val = [[1.], [1.1], [1.5]]
self._compile_and_check([rng_R, low, high], [out],
[rng_R_val, low_val, high_val], RandomFunction)
# uniform with vector slice
low = dvector()
high = dvector()
post_r, out = uniform(rng_R, low=low, high=high)
low_val = [.1, .2, .3]
high_val = [1.1, 2.2, 3.3]
size_val = (3, )
self._compile_and_check([rng_R, low, high], [out],
[rng_R_val, low_val[:-1], high_val[:-1]],
RandomFunction)
# uniform with explicit size and size implicit in parameters
# NOTE 1: Would it be desirable that size could also be supplied
# as a Theano variable?
post_r, out = uniform(rng_R, size=size_val, low=low, high=high)
self._compile_and_check([rng_R, low, high], [out],
[rng_R_val, low_val, high_val], RandomFunction)
# binomial with vector slice
n = ivector()
prob = dvector()
post_r, out = binomial(rng_R, n=n, p=prob)
n_val = [1, 2, 3]
prob_val = [.1, .2, .3]
size_val = (3, )
self._compile_and_check([rng_R, n, prob], [out],
[rng_R_val, n_val[:-1], prob_val[:-1]],
RandomFunction)
# binomial with explicit size and size implicit in parameters
# cf. NOTE 1
post_r, out = binomial(rng_R, n=n, p=prob, size=size_val)
self._compile_and_check([rng_R, n, prob], [out],
[rng_R_val, n_val, prob_val], RandomFunction)
# normal with vector slice
avg = dvector()
std = dvector()
post_r, out = normal(rng_R, avg=avg, std=std)
avg_val = [1, 2, 3]
std_val = [.1, .2, .3]
size_val = (3, )
self._compile_and_check([rng_R, avg, std], [out],
[rng_R_val, avg_val[:-1], std_val[:-1]],
RandomFunction)
# normal with explicit size and size implicit in parameters
# cf. NOTE 1
post_r, out = normal(rng_R, avg=avg, std=std, size=size_val)
self._compile_and_check([rng_R, avg, std], [out],
[rng_R_val, avg_val, std_val], RandomFunction)
# multinomial with tensor-3 probabilities
"""
def test_pool2d():
shps = [
(1, 12),
(1, 1, 12),
(1, 1, 1, 12),
(1, 1, 2, 2),
(1, 1, 1, 1),
(1, 1, 4, 4),
(1, 1, 10, 11),
(1, 2, 2, 2),
(3, 5, 4, 4),
(25, 1, 7, 7),
(1, 1, 12, 12),
(1, 1, 2, 14),
(1, 1, 12, 14),
(1, 1, 14, 14),
(1, 1, 16, 16),
(1, 1, 18, 18),
(1, 1, 24, 24),
(1, 6, 24, 24),
(10, 1, 24, 24),
(10, 6, 24, 24),
(30, 6, 12, 12),
(30, 2, 24, 24),
(30, 6, 24, 24),
(10, 10, 10, 11),
(1, 1, 10, 1025),
(1, 1, 10, 1023),
(1, 1, 1025, 10),
(1, 1, 1023, 10),
(3, 2, 16, 16, 16),
(3, 2, 6, 6, 6, 5),
(3, 2, 6, 6, 6, 5, 7),
]
np.random.RandomState(utt.fetch_seed()).shuffle(shps)
test_ws = (2, 2), (3, 2), (1, 1)
test_st = (2, 2), (3, 2), (1, 1)
test_mode = ["max", "sum", "average_inc_pad", "average_exc_pad"]
ref_mode = copy.copy(mode_without_gpu)
ref_mode.check_py_code = False
gpu_mode = mode_with_gpu.excluding("cudnn")
gpu_mode.check_py_code = False
for shp in shps:
for mode, ws, st in itertools.product(test_mode, test_ws, test_st):
if ws[0] > shp[-2] or ws[1] > shp[-1]:
continue
for ignore_border, pad in zip((True, False), [(1, 1), (0, 0)]):
if pad[0] >= ws[0] or pad[1] >= ws[1]:
continue
if mode == "average_exc_pad" and (pad[0] > 0 or pad[1] > 0):
continue
# print('test_pool2d', shp, ws, st, pad, mode, ignore_border)
ds_op = Pool(ndim=len(ws), mode=mode, ignore_border=ignore_border)
a = theano.shared(rand(*shp), "a")
a_pooled = ds_op(tensor.as_tensor_variable(a), ws, st, pad)
f = theano.function([], a_pooled, mode=gpu_mode)
f2 = theano.function([], a_pooled, mode=ref_mode)
assert any(
[isinstance(node.op, GpuPool) for node in f.maker.fgraph.toposort()]
)
assert any(
[isinstance(node.op, Pool) for node in f2.maker.fgraph.toposort()]
)
assert np.allclose(f(), f2()), (shp, ws, st, pad, mode, ignore_border)
a_pooled_grad = tensor.grad(a_pooled.sum(), a)
g = theano.function([], a_pooled_grad, mode=gpu_mode)
g2 = theano.function([], a_pooled_grad, mode=ref_mode)
if mode == "max":
gop = GpuMaxPoolGrad
gop2 = MaxPoolGrad
else:
gop = GpuAveragePoolGrad
gop2 = AveragePoolGrad
assert any(
[isinstance(node.op, gop) for node in g.maker.fgraph.toposort()]
)
assert any(
[isinstance(node.op, gop2) for node in g2.maker.fgraph.toposort()]
)
assert np.allclose(g(), g2()), (shp, ws, st, pad, mode, ignore_border)
# test rop and grad grad for max pooling
# for average pooling grad grad is just average pooling grad
if mode != "max":
continue
ea = theano.shared(rand(*shp), "ea")
gr = theano.function([], tensor.Rop(a_pooled, a, ea), mode=gpu_mode)
gr2 = theano.function([], tensor.Rop(a_pooled, a, ea), mode=ref_mode)
assert any(
[
isinstance(node.op, GpuDownsampleFactorMaxGradGrad)
for node in gr.maker.fgraph.toposort()
]
)
assert any(
[
isinstance(node.op, DownsampleFactorMaxGradGrad)
for node in gr2.maker.fgraph.toposort()
]
)
assert np.allclose(gr(), gr2()), (shp, ws, st, pad, mode, ignore_border)
ggf = gradient.Lop(tensor.grad((a_pooled ** 2).sum(), a), a, a)
gg = theano.function([], ggf, mode=gpu_mode)
gg2 = theano.function([], ggf, mode=ref_mode)
assert any(
[
isinstance(node.op, GpuDownsampleFactorMaxGradGrad)
for node in gg.maker.fgraph.toposort()
]
)
assert any(
[
isinstance(node.op, DownsampleFactorMaxGradGrad)
for node in gg2.maker.fgraph.toposort()
]
)
assert np.allclose(gg(), gg2()), (shp, ws, st, pad, mode, ignore_border)
def setup_method(self):
self.rng = np.random.RandomState(seed=utt.fetch_seed())
self.m_val = self.rng.rand(3, 2)
self.v_val = self.rng.rand(4)
def test_specify_shape_partial(self):
dtype = self.dtype
if dtype is None:
dtype = theano.config.floatX
rng = np.random.RandomState(utt.fetch_seed())
x1_1 = np.asarray(rng.uniform(1, 2, [4, 2]), dtype=dtype)
x1_1 = self.cast_value(x1_1)
x1_2 = np.asarray(rng.uniform(1, 2, [4, 2]), dtype=dtype)
x1_2 = self.cast_value(x1_2)
x2 = np.asarray(rng.uniform(1, 2, [5, 2]), dtype=dtype)
x2 = self.cast_value(x2)
# Test that we can replace with values of the same shape
x1_shared = self.shared_constructor(x1_1)
x1_specify_shape = tensor.specify_shape(
x1_shared,
(tensor.as_tensor_variable(x1_1.shape[0]), x1_shared.shape[1]),
)
x1_shared.set_value(x1_2)
assert np.allclose(
self.ref_fct(x1_shared.get_value(borrow=True)), self.ref_fct(x1_2)
)
shape_op_fct = theano.function([], x1_shared.shape)
topo = shape_op_fct.maker.fgraph.toposort()
shape_op_fct()
if theano.config.mode != "FAST_COMPILE":
assert len(topo) == 3
assert isinstance(topo[0].op, tensor.opt.Shape_i)
assert isinstance(topo[1].op, tensor.opt.Shape_i)
assert isinstance(topo[2].op, tensor.opt.MakeVector)
# Test that we forward the input
specify_shape_fct = theano.function([], x1_specify_shape)
specify_shape_fct()
# theano.printing.debugprint(specify_shape_fct)
assert np.all(self.ref_fct(specify_shape_fct()) == self.ref_fct(x1_2))
topo_specify = specify_shape_fct.maker.fgraph.toposort()
if theano.config.mode != "FAST_COMPILE":
assert len(topo_specify) == 4
# Test that we put the shape info into the graph
shape_constant_fct = theano.function([], x1_specify_shape.shape)
# theano.printing.debugprint(shape_constant_fct)
assert np.all(shape_constant_fct() == shape_op_fct())
topo_cst = shape_constant_fct.maker.fgraph.toposort()
if theano.config.mode != "FAST_COMPILE":
assert len(topo_cst) == 2
# Test that we can replace with values of the different shape
# but that will raise an error in some case, but not all
x1_shared.set_value(x2)
with pytest.raises(AssertionError):
specify_shape_fct()
# No assertion will be raised as the Op is removed from the graph
if theano.config.mode not in ["FAST_COMPILE", "DebugMode", "DEBUG_MODE"]:
shape_constant_fct()
else:
with pytest.raises(AssertionError):
shape_constant_fct()
def test_one_sequence_one_output_weights_gpu1(self):
def f_rnn(u_t, x_tm1, W_in, W):
return u_t * W_in + x_tm1 * W
u = theano.tensor.fvector('u')
x0 = theano.tensor.fscalar('x0')
W_in = theano.tensor.fscalar('win')
W = theano.tensor.fscalar('w')
mode = mode_with_gpu.excluding('InputToGpuOptimizer')
output, updates = theano.scan(f_rnn,
u,
x0, [W_in, W],
n_steps=None,
truncate_gradient=-1,
go_backwards=False,
mode=mode)
output = gpu_from_host(output)
f2 = theano.function([u, x0, W_in, W],
output,
updates=updates,
allow_input_downcast=True,
mode=mode)
rng = numpy.random.RandomState(utt.fetch_seed())
v_u = rng.uniform(size=(4, ), low=-5., high=5.)
v_x0 = rng.uniform()
W = rng.uniform()
W_in = rng.uniform()
v_u = numpy.asarray(v_u, dtype='float32')
v_x0 = numpy.asarray(v_x0, dtype='float32')
W = numpy.asarray(W, dtype='float32')
W_in = numpy.asarray(W_in, dtype='float32')
# compute the output in numpy
v_out = numpy.zeros((4, ))
v_out[0] = v_u[0] * W_in + v_x0 * W
for step in xrange(1, 4):
v_out[step] = v_u[step] * W_in + v_out[step - 1] * W
theano_values = f2(v_u, v_x0, W_in, W)
utt.assert_allclose(theano_values, v_out)
# TO DEL
topo = f2.maker.fgraph.toposort()
scan_node = [
node for node in topo
if isinstance(node.op, theano.scan_module.scan_op.Scan)
]
assert len(scan_node) == 1
scan_node = scan_node[0]
topo = f2.maker.fgraph.toposort()
assert sum([isinstance(node.op, HostFromGpu) for node in topo]) == 0
assert sum([isinstance(node.op, GpuFromHost) for node in topo]) == 4
scan_node = [
node for node in topo
if isinstance(node.op, theano.scan_module.scan_op.Scan)
]
assert len(scan_node) == 1
scan_node = scan_node[0]
scan_node_topo = scan_node.op.fn.maker.fgraph.toposort()
# check that there is no gpu transfer in the inner loop.
assert any(
[isinstance(node.op, GpuElemwise) for node in scan_node_topo])
assert not any(
[isinstance(node.op, HostFromGpu) for node in scan_node_topo])
assert not any(
[isinstance(node.op, GpuFromHost) for node in scan_node_topo])
def setUp(self):
self.rng = np.random.RandomState(utt.fetch_seed())
def test_downsample():
shps = [
(1, 1, 1, 12),
(1, 1, 2, 2),
(1, 1, 1, 1),
(1, 1, 4, 4),
(1, 1, 10, 11),
(1, 2, 2, 2),
(3, 5, 4, 4),
(25, 1, 7, 7),
(1, 1, 12, 12),
(1, 1, 2, 14),
(1, 1, 12, 14),
(1, 1, 14, 14),
(1, 1, 16, 16),
(1, 1, 18, 18),
(1, 1, 24, 24),
(1, 6, 24, 24),
(10, 1, 24, 24),
(10, 6, 24, 24),
(30, 6, 12, 12),
(30, 2, 24, 24),
(30, 6, 24, 24),
(10, 10, 10, 11),
(1, 1, 10, 1025),
(1, 1, 10, 1023),
(1, 1, 1025, 10),
(1, 1, 1023, 10),
(65536, 1, 10, 10),
(1, 65536, 10, 10),
]
numpy.random.RandomState(unittest_tools.fetch_seed()).shuffle(shps)
for shp in shps:
for ds in (2, 2), (3, 2), (1, 1):
if ds[0] > shp[2]:
continue
if ds[1] > shp[3]:
continue
# GpuDownsampleFactorMax doesn't like having more than 512 columns
# in the output tensor.
if float(shp[3]) / ds[1] > 512:
continue
for ignore_border in (True, False):
# print 'test_downsample', shp, ds, ignore_border
ds_op = Pool(ignore_border=ignore_border)
a = tcn.shared_constructor(my_rand(*shp), 'a')
f = pfunc([],
ds_op(tensor.as_tensor_variable(a), ds),
mode=mode_with_gpu.excluding('cudnn'))
f2 = pfunc([],
ds_op(tensor.as_tensor_variable(a), ds),
mode=mode_without_gpu)
assert any([
isinstance(node.op, tcn.blas.GpuDownsampleFactorMax)
for node in f.maker.fgraph.toposort()
])
assert any([
isinstance(node.op, Pool)
for node in f2.maker.fgraph.toposort()
])
assert numpy.allclose(f(), f2())
# The grad is too slow on GT220 GPU
# This cause the computer to freeze...
# Remove this when it gets optimized enough
# This only bypass the last 2 checks
# Those tests where passing in all Mode on a GTX470
if shp[0] > 30000 or shp[1] > 30000:
continue
g = pfunc([],
tensor.grad(
ds_op(tensor.as_tensor_variable(a), ds).sum(),
a),
mode=mode_with_gpu.excluding('cudnn'))
g2 = pfunc([],
tensor.grad(
ds_op(tensor.as_tensor_variable(a), ds).sum(),
a),
mode=mode_without_gpu)
assert any([
isinstance(node.op, tcn.blas.GpuDownsampleFactorMaxGrad)
for node in g.maker.fgraph.toposort()
])
assert any([
isinstance(node.op, PoolGrad)
for node in g2.maker.fgraph.toposort()
])
assert numpy.allclose(g(), g2()), shp
ggf = gradient.Lop(
tensor.grad((ds_op(tensor.as_tensor_variable(a),
ds)**2).sum(), a), a, a)
ref_mode = copy.copy(mode_without_gpu)
ref_mode.check_py_code = False
gpu_mode = copy.copy(mode_with_gpu)
gpu_mode.check_py_code = False
gg = pfunc([], ggf, mode=gpu_mode)
gg2 = pfunc([], ggf, mode=ref_mode)
assert any([
isinstance(node.op,
tcn.blas.GpuDownsampleFactorMaxGradGrad)
for node in gg.maker.fgraph.toposort()
])
assert any([
isinstance(node.op, DownsampleFactorMaxGradGrad)
for node in gg2.maker.fgraph.toposort()
])
assert numpy.allclose(gg(), gg2()), shp
def test_naacl_model(iters_per_unsup=3, iters_per_sup=3,
optimizer=None, realistic=False):
#print "BUILDING MODEL"
import time
t = time.time()
if optimizer:
mode = theano.Mode(linker='c|py', optimizer=optimizer)
else:
mode = get_default_mode()
if mode.__class__.__name__ == 'DebugMode':
iters_per_unsup = 1
iters_per_sup = 1
if realistic:
m = create_realistic(compile_mode=mode)
else:
m = create(compile_mode=mode)
#print 'BUILD took %.3fs'%(time.time() - t)
prog_str = []
idx_of_node = {}
for i, node in enumerate(m.pretraining_update.maker.fgraph.toposort()):
idx_of_node[node] = i
if False and i > -1:
print ' ', i, node, [(ii, idx_of_node.get(ii.
owner, 'IN')) for ii in node.inputs]
prog_str.append(str(node))
#print input_pretraining_gradients[4].owner.inputs
#print input_pretraining_gradients[4].owner.inputs[1].owner.inputs
#sys.exit()
#print "PROGRAM LEN %i HASH %i"% (len(m.pretraining_update.maker.fgraph.apply_nodes), reduce(lambda a, b: hash(a) ^ hash(b),prog_str))
rng = N.random.RandomState(unittest_tools.fetch_seed(23904))
inputs = [rng.rand(10, m.input_size) for i in 1, 2, 3]
targets = N.asarray([0, 3, 4, 2, 3, 4, 4, 2, 1, 0])
#print inputs
#print 'UNSUPERVISED PHASE'
t = time.time()
for i in xrange(3):
for j in xrange(iters_per_unsup):
try:
known_fail = False
m.pretraining_update(*inputs)
except ValueError:
known_fail = True
except TypeError:
known_fail = True
if known_fail:
raise KnownFailureTest("Deprecated compile.module fails to "
"give a sensible warning when updates to a variable "
"have the wrong type")
s0, s1 = [str(j) for j in m.pretraining_update(*inputs)]
#print 'huh?', i, iters_per_unsup, iters_per_unsup * (i+1), s0, s1
if iters_per_unsup == 3:
assert s0.startswith('0.927793') # '0.403044')
assert s1.startswith('0.068035') # '0.074898')
#print 'UNSUPERVISED took %.3fs'%(time.time() - t)
#print 'FINETUNING GRAPH'
#print 'SUPERVISED PHASE COSTS (%s)'%optimizer
t = time.time()
for i in xrange(3):
for j in xrange(iters_per_unsup):
m.finetuning_update(*(inputs + [targets]))
s0 = str(m.finetuning_update(*(inputs + [targets])))
#print iters_per_sup * (i+1), s0
if iters_per_sup == 10:
s0f = float(s0)
assert 19.7042 < s0f and s0f < 19.7043
def test_DownsampleFactorMaxStride(self):
rng = numpy.random.RandomState(utt.fetch_seed())
maxpoolshps = ((1, 1), (3, 3), (5, 3), (16, 16))
stridesizes = (
(1, 1),
(3, 3),
(5, 7),
)
# generate random images
imval = rng.rand(4, 10, 16, 16)
# The same for each mode
outputshps = (
(4, 10, 16, 16),
(4, 10, 6, 6),
(4, 10, 4, 3),
(4, 10, 16, 16),
(4, 10, 6, 6),
(4, 10, 4, 3),
(4, 10, 14, 14),
(4, 10, 5, 5),
(4, 10, 3, 2),
(4, 10, 14, 14),
(4, 10, 6, 6),
(4, 10, 4, 3),
(4, 10, 12, 14),
(4, 10, 4, 5),
(4, 10, 3, 2),
(4, 10, 12, 14),
(4, 10, 5, 6),
(4, 10, 4, 3),
(4, 10, 1, 1),
(4, 10, 1, 1),
(4, 10, 1, 1),
(4, 10, 1, 1),
(4, 10, 1, 1),
(4, 10, 1, 1),
)
images = tensor.dtensor4()
indx = 0
for mode, maxpoolshp, ignore_border in product(
['max', 'sum', 'average_inc_pad', 'average_exc_pad'], maxpoolshps,
[True, False]):
for stride in stridesizes:
outputshp = outputshps[indx % len(outputshps)]
indx += 1
# Pool op
numpy_output_val = \
self.numpy_max_pool_2d_stride(imval, maxpoolshp,
ignore_border, stride,
mode)
assert numpy_output_val.shape == outputshp, (
"outshape is %s, calculated shape is %s" %
(outputshp, numpy_output_val.shape))
maxpool_op = \
Pool(maxpoolshp,
ignore_border=ignore_border,
st=stride, mode=mode)(images)
f = function([images], maxpool_op)
output_val = f(imval)
utt.assert_allclose(output_val, numpy_output_val)
