def testJVPFunctionWithBatchOfTangents(self):
add_outputs = (constant_op.constant(4.),)
jvp_flat = forwardprop._jvp_dispatch(
op_name="Add",
attr_tuple=(),
inputs=(constant_op.constant(1.), constant_op.constant(3.)),
outputs=add_outputs,
tangents=(
constant_op.constant([1., 2., 3.]),
constant_op.constant([4., 5., 6.]),
),
use_batch=True)
# Using evaluate and asserting with just a list works too
# but the output is more explicit this way
self.assertAllClose([constant_op.constant([1. + 4., 2. + 5., 3. + 6.])],
jvp_flat)
mul_outputs = (constant_op.constant([20.]),)
jvp_flat = forwardprop._jvp_dispatch(
op_name="Mul",
attr_tuple=(),
inputs=(constant_op.constant([4.]), constant_op.constant([5.])),
outputs=mul_outputs,
tangents=(
constant_op.constant([[1.], [0.], [1.]]),
constant_op.constant([[0.], [1.], [1.]]),
),
use_batch=True)
self.assertAllClose([constant_op.constant([[5.], [4.], [5. + 4.]])],
jvp_flat)
def testJVPFunctionRaisesError(self):
sum_outputs = (constant_op.constant(6.),)
with self.assertRaisesRegex(ValueError, r".*was expected to be of shape*"):
forwardprop._jvp_dispatch(
op_name="Add",
attr_tuple=(),
inputs=(constant_op.constant(2.), constant_op.constant(4.)),
outputs=sum_outputs,
tangents=(constant_op.constant([1., 2.]),
constant_op.constant([[1.], [2.]])),
use_batch=True)
def testJVPFunction(self):
add_outputs = (constant_op.constant(4.),)
vp, = forwardprop._jvp_dispatch(
op_name="Add",
attr_tuple=(),
inputs=(constant_op.constant(1.), constant_op.constant(3.)),
outputs=add_outputs,
tangents=(
constant_op.constant(1.),
constant_op.constant(5.),
))
self.assertAllClose(1. + 5., self.evaluate(vp))
mul_outputs = (constant_op.constant([20.]),)
vp, = forwardprop._jvp_dispatch(
op_name="Mul",
attr_tuple=(),
inputs=(constant_op.constant([4.]), constant_op.constant([5.])),
outputs=mul_outputs,
tangents=(
constant_op.constant([2.]),
constant_op.constant([3.]),
))
self.assertAllClose([2. * 5. + 3. * 4.], self.evaluate(vp))