def test_works_with_underflow_case(self):
for np_dtype, atol in [(np.float32, 0.05), (np.float64, 1e-5),
(np.complex64, 0.05), (np.complex128, 1e-5)]:
with self.subTest(np_dtype=np_dtype, atol=atol):
matrix = (np.eye(20) * 1e-6).astype(np_dtype)
_, logdet_np = np.linalg.slogdet(matrix)
with self.session():
logdet_tf = linalg.logdet(matrix)
self.assertAllClose(logdet_np,
self.evaluate(logdet_tf),
atol=atol)
def test_works_with_five_different_random_pos_def_matrices(self):
for n in range(1, 6):
for np_dtype, atol in [(np.float32, 0.05), (np.float64, 1e-5),
(np.complex64, 0.05),
(np.complex128, 1e-5)]:
with self.subTest(n=n, np_dtype=np_dtype, atol=atol):
matrix = _RandomPDMatrix(n, self.rng, np_dtype)
_, logdet_np = np.linalg.slogdet(matrix)
with self.session():
# Create 2 x n x n matrix
# matrix = np.array(
# [_RandomPDMatrix(n, self.rng, np_dtype),
# _RandomPDMatrix(n, self.rng, np_dtype)]).astype(np_dtype)
logdet_tf = linalg.logdet(matrix)
self.assertAllClose(logdet_np,
self.evaluate(logdet_tf),
atol=atol)