def test_multiple_sources(self):
"""Test that passing multiple sources works"""
class O(gof.op.Op):
def __init__(self, tst, grad_ok):
self.tst = tst
self.grad_ok = grad_ok
def make_node(self, *inputs):
outputs = [gof.generic(),gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inputs, grads):
g0, g1 = grads
if not self.grad_ok:
self.tst.fail()
else:
if g1:
return [g0, g0+g1]
else:
return [g0, g0]
i = gof.generic()
j = gof.generic()
k = gof.generic()
a1 = O(self,True).make_node(i,j)
a2 = O(self,True).make_node(k,a1.outputs[1])
g = _grad_sources_inputs([(a2.outputs[0], 1), (a1.outputs[1],4),
(a1.outputs[0], 3), (a1.outputs[0], 3)], None)
self.assertTrue(g[a2.inputs[0]] == 1)
self.assertTrue(g[a2.inputs[1]] == 5)
self.assertTrue(g[a1.outputs[0]] == 6)
self.assertTrue(g[a1.outputs[1]] == 5)
self.assertTrue(g[a1.inputs[0]] == 6)
self.assertTrue(g[a1.inputs[1]] == 11)
def test_ifelse():
a = T.scalar()
b = generic()
c = generic()
notimpl = NotImplementedOp()
lazys = [True]
# We need lazy to end up being True for this test.
if theano.config.vm.lazy in [True, None]:
lazys = [True, None]
cloops = [True, False]
if theano.config.cxx == "":
cloops = [False]
for cloop in cloops:
for lazy in lazys:
linker = theano.gof.vm.VM_Linker(use_cloop=cloop, lazy=lazy)
f = function([a, b, c], ifelse(a, notimpl(b), c),
mode=Mode(linker=linker, optimizer='fast_run'))
try:
# print "case 1"
f(1, 'a', 'b')
assert False
except NotImplementedOp.E:
pass
# print "... passed"
# print "case 2"
# print f(0, 'a', 'b')
assert f(0, 'a', 'b') == 'b'
def test_some_None_igrads(self):
"""Test that traversal works properly when an op return some None"""
class O(gof.op.Op):
def __init__(self, tst, grad_ok):
self.tst = tst
self.grad_ok = grad_ok
def make_node(self, *inputs):
outputs = [gof.generic(),gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inputs, g_out):
if not self.grad_ok:
self.tst.fail()
else:
return [1, None]
i = gof.generic()
j = gof.generic()
k = gof.generic()
a1 = O(self, True).make_node(i,j)
a2 = O(self, True).make_node(a1.outputs[1], k)
g = grad_sources_inputs([(a2.outputs[0], 1)], None, warn_type=False)
self.assertTrue(g[i] is 1 and j not in g and k not in g)
a1 = O(self, True).make_node(i,j)
a2 = O(self, True).make_node(k, a1.outputs[1])
g = _grad_sources_inputs([(a2.outputs[0], 1)], None)
self.assertTrue(g[k] is 1 and i not in g and j not in g)
def test_ifelse():
a = T.scalar()
b = generic()
c = generic()
notimpl = NotImplementedOp()
lazys = [True]
# We need lazy to end up being True for this test.
if theano.config.vm.lazy in [True, None]:
lazys = [True, None]
cloops = [True, False]
if theano.config.cxx == "":
cloops = [False]
for cloop in cloops:
for lazy in lazys:
linker = theano.gof.vm.VM_Linker(use_cloop=cloop, lazy=lazy)
f = function([a, b, c],
ifelse(a, notimpl(b), c),
mode=Mode(linker=linker, optimizer='fast_run'))
try:
# print "case 1"
f(1, 'a', 'b')
assert False
except NotImplementedOp.E:
pass
# print "... passed"
# print "case 2"
# print f(0, 'a', 'b')
assert f(0, 'a', 'b') == 'b'
def test_some_None_igrads(self):
"""Test that traversal works properly when an op return some None"""
class O(gof.op.Op):
def __init__(self, tst, grad_ok):
self.tst = tst
self.grad_ok = grad_ok
def make_node(self, *inputs):
outputs = [gof.generic(),gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inputs, g_out):
if not self.grad_ok:
self.tst.fail()
else:
return [1, None]
i = gof.generic()
j = gof.generic()
k = gof.generic()
a1 = O(self, True).make_node(i,j)
a2 = O(self, True).make_node(a1.outputs[1], k)
g = grad_sources_inputs([(a2.outputs[0], 1)], None, warn_type=False)
self.assertTrue(g[i] is 1 and j not in g and k not in g)
a1 = O(self, True).make_node(i,j)
a2 = O(self, True).make_node(k, a1.outputs[1])
g = _grad_sources_inputs([(a2.outputs[0], 1)], None)
self.assertTrue(g[k] is 1 and i not in g and j not in g)
def test_ifelse():
a = tt.scalar()
b = generic()
c = generic()
notimpl = NotImplementedOp()
lazys = [True]
# We need lazy to end up being True for this test.
if theano.config.vm__lazy in [True, None]:
lazys = [True, None]
cloops = [True, False]
if theano.config.cxx == "":
cloops = [False]
for cloop in cloops:
for lazy in lazys:
linker = theano.link.vm.VMLinker(use_cloop=cloop, lazy=lazy)
f = function(
[a, b, c],
ifelse(a, notimpl(b), c),
mode=Mode(linker=linker, optimizer="fast_run"),
)
with pytest.raises(NotImplementedOpException):
f(1, "a", "b")
assert f(0, "a", "b") == "b"
def test_multiple_sources(self):
"""Test that passing multiple sources works"""
class O(gof.op.Op):
def __init__(self, tst, grad_ok):
self.tst = tst
self.grad_ok = grad_ok
def make_node(self, *inputs):
outputs = [gof.generic(),gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inputs, grads):
g0, g1 = grads
if not self.grad_ok:
self.tst.fail()
else:
if g1:
return [g0, g0+g1]
else:
return [g0, g0]
i = gof.generic()
j = gof.generic()
k = gof.generic()
a1 = O(self,True).make_node(i,j)
a2 = O(self,True).make_node(k,a1.outputs[1])
g = _grad_sources_inputs([(a2.outputs[0], 1), (a1.outputs[1],4),
(a1.outputs[0], 3), (a1.outputs[0], 3)], None)
self.assertTrue(g[a2.inputs[0]] == 1)
self.assertTrue(g[a2.inputs[1]] == 5)
self.assertTrue(g[a1.outputs[0]] == 6)
self.assertTrue(g[a1.outputs[1]] == 5)
self.assertTrue(g[a1.inputs[0]] == 6)
self.assertTrue(g[a1.inputs[1]] == 11)
def test_Nin_Nout(self):
"""Test grad is called correctly for a many-to-many op"""
gval0 = gof.generic()
gval1 = gof.generic()
class O(gof.op.Op):
def make_node(self):
inputs = [gof.generic(),gof.generic()]
outputs = [gof.generic(),gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inp, grads):
return gval0, gval1
a1 = O().make_node()
g = _grad_sources_inputs([(a1.outputs[0], 1)], None)
self.assertTrue(g[a1.inputs[0]] is gval0)
self.assertTrue(g[a1.inputs[1]] is gval1)
def test_Nin_Nout(self):
"""Test grad is called correctly for a many-to-many op"""
gval0 = gof.generic()
gval1 = gof.generic()
class O(gof.op.Op):
def make_node(self):
inputs = [gof.generic(),gof.generic()]
outputs = [gof.generic(),gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inp, grads):
return gval0, gval1
a1 = O().make_node()
g = _grad_sources_inputs([(a1.outputs[0], 1)], None)
self.assertTrue(g[a1.inputs[0]] is gval0)
self.assertTrue(g[a1.inputs[1]] is gval1)
def test_wrong_rval_len1(self):
"""Test that it is not ok to return the wrong number of gradients"""
class retNone(gof.op.Op):
def make_node(self, *inputs):
outputs = [gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inputs, grads):
return [None]
i = gof.generic()
j = gof.generic()
a1 = retNone().make_node(i)
g = _grad_sources_inputs([(a1.out, 1)], None)
a2 = retNone().make_node(i,j)
try:
g = _grad_sources_inputs([(a2.out, 1)], None)
except ValueError, e:
self.assertTrue(e[0] is gradient._msg_badlen)
return
def test_wrong_rval_len1(self):
"""Test that it is not ok to return the wrong number of gradients"""
class retNone(gof.op.Op):
def make_node(self, *inputs):
outputs = [gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inputs, grads):
return [None]
i = gof.generic()
j = gof.generic()
a1 = retNone().make_node(i)
g = _grad_sources_inputs([(a1.out, 1)], None)
a2 = retNone().make_node(i,j)
try:
g = _grad_sources_inputs([(a2.out, 1)], None)
except ValueError, e:
self.assertTrue(e[0] is gradient._msg_badlen)
return
def test_retNone1_b(self):
"""Test that it is ok to return [None] from op.grad()"""
class retNone(gof.op.Op):
def make_node(self, *inputs):
outputs = [gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inp, grads):
return [None]
i = gof.generic()
a = retNone().make_node(i)
g = _grad_sources_inputs([(a.out, 1)], None)
self.assertTrue(not i in g)
def test_ifelse():
a = T.scalar()
b = generic()
c = generic()
notimpl = NotImplementedOp()
f = function([a, b, c], ifelse(a, notimpl(b), c), mode=Mode(linker="vm", optimizer="fast_run"))
try:
print "case 1"
f(1, "a", "b")
assert False
except NotImplementedOp.E:
pass
print "... passed"
print "case 2"
print f(0, "a", "b")
assert f(0, "a", "b") == "b"
print "... passed"
def test_retNone1_b(self):
"""Test that it is ok to return [None] from op.grad()"""
class retNone(gof.op.Op):
def make_node(self, *inputs):
outputs = [gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inp, grads):
return [None]
i = gof.generic()
a = retNone().make_node(i)
g = _grad_sources_inputs([(a.out, 1)], None)
self.assertTrue(not i in g)
def test_ifelse():
a = generic()
b = generic()
c = generic()
notimpl = NotImplementedOp()
f = function([a,b,c], ifelse(a, notimpl(b), c),
mode=Mode(linker='vm', optimizer='fast_run'))
try:
print "case 1"
f( True, 'a', 'b')
assert False
except NotImplementedOp.E:
pass
print "... passed"
print "case 2"
print f( False, 'a', 'b')
assert f( False, 'a', 'b') == 'b'
print "... passed"
def more_complex_test():
notimpl = NotImplementedOp()
ifelseifelseif = IfElseIfElseIf()
x1 = T.scalar('x1')
x2 = T.scalar('x2')
c1 = generic('c1')
c2 = generic('c2')
t1 = ifelse(c1,x1,notimpl(x2))
t1.name = 't1'
t2 = t1*10
t2.name = 't2'
t3 = ifelse(c2,t2, x1+t1)
t3.name = 't3'
t4 = ifelseifelseif(T.eq(x1,x2), x1, T.eq(x1,5), x2, c2, t3, t3+0.5)
t4.name = 't4'
f = function([c1,c2,x1,x2], t4, mode=Mode(linker='vm', optimizer='fast_run'))
print f(1, 0, numpy.array(10,dtype=x1.dtype),0)
assert f(1,0,numpy.array(10,dtype=x1.dtype),0) == 20.5
print '... passed'
def test_1in_1out(self):
"""Test grad is called correctly for a 1-to-1 op"""
gval = gof.generic()
class O(gof.op.Op):
def make_node(self):
inputs = [gof.generic()]
outputs = [gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inp, grads):
return gval,
a1 = O().make_node()
g = _grad_sources_inputs([(a1.outputs[0], 1)], None)
self.assertTrue(g[a1.inputs[0]] is gval)
def test_ifelse():
a = T.scalar()
b = generic()
c = generic()
notimpl = NotImplementedOp()
f = function([a,b,c], ifelse(a, notimpl(b), c),
mode=Mode(linker='vm', optimizer='fast_run'))
try:
print "case 1"
f( 1, 'a', 'b')
assert False
except NotImplementedOp.E:
pass
print "... passed"
print "case 2"
print f( 0, 'a', 'b')
assert f( 0, 'a', 'b') == 'b'
print "... passed"
def test_1in_1out(self):
"""Test grad is called correctly for a 1-to-1 op"""
gval = gof.generic()
class O(gof.op.Op):
def make_node(self):
inputs = [gof.generic()]
outputs = [gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inp, grads):
return gval,
a1 = O().make_node()
g = _grad_sources_inputs([(a1.outputs[0], 1)], None)
self.assertTrue(g[a1.inputs[0]] is gval)
def make_node(self, frames, n, axis):
""" compute an n-point fft of frames along given axis """
_frames = tensor.as_tensor(frames, ndim=2)
_n = tensor.as_tensor(n, ndim=0)
_axis = tensor.as_tensor(axis, ndim=0)
if self.half and _frames.type.dtype.startswith('complex'):
raise TypeError('Argument to HalfFFT must not be complex', frames)
spectrogram = tensor.zmatrix()
buf = generic()
# The `buf` output is present for future work
# when we call FFTW directly and re-use the 'plan' that FFTW creates.
# In that case, buf would store a CObject encapsulating the plan.
rval = Apply(self, [_frames, _n, _axis], [spectrogram, buf])
return rval
def test_some_None_ograds(self):
"""Test grad is called when some output gradients are None"""
class O(gof.op.Op):
def __init__(self, tst):
self.tst = tst
def make_node(self, *inputs):
outputs = [gof.generic(),gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inputs, g_out):
return [1]
i = gof.generic()
a1 = O(self).make_node(i)
g = grad_sources_inputs([(a1.outputs[0], 1)], None, warn_type=False)
self.assertTrue(g[i] is 1)
def test_stop_on_all_none(self):
"""Test that op.grad() is not called when output grads are all None"""
class retNone(gof.op.Op):
def __init__(self, tst):
self.tst = tst
def make_node(self, *inputs):
outputs = [gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inputs, grads):
self.tst.fail()
i = gof.generic()
a1 = retNone(self).make_node(i)
g = _grad_sources_inputs([(a1.out, None)], None)
def test_stop_on_all_none(self):
"""Test that op.grad() is not called when output grads are all None"""
class retNone(gof.op.Op):
def __init__(self, tst):
self.tst = tst
def make_node(self, *inputs):
outputs = [gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inputs, grads):
self.tst.fail()
i = gof.generic()
a1 = retNone(self).make_node(i)
g = _grad_sources_inputs([(a1.out, None)], None)
def test_some_None_ograds(self):
"""Test grad is called when some output gradients are None"""
class O(gof.op.Op):
def __init__(self, tst):
self.tst = tst
def make_node(self, *inputs):
outputs = [gof.generic(),gof.generic()]
return gof.Apply(self, inputs, outputs)
def grad(self, inputs, g_out):
return [1]
i = gof.generic()
a1 = O(self).make_node(i)
g = grad_sources_inputs([(a1.outputs[0], 1)], None, warn_type=False)
self.assertTrue(g[i] is 1)
def make_node(self):
inputs = [gof.generic()]
outputs = [gof.generic()]
return gof.Apply(self, inputs, outputs)
def make_node(self):
inputs = [gof.generic()]
outputs = [gof.generic()]
return gof.Apply(self, inputs, outputs)