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)]:
matrix = (np.eye(20) * 1e-6).astype(np_dtype)
sign_np, log_abs_det_np = np.linalg.slogdet(matrix)
with self.session(use_gpu=True):
sign_tf, log_abs_det_tf = linalg.slogdet(matrix)
self.assertAllClose(log_abs_det_np, log_abs_det_tf.eval(), atol=atol)
self.assertAllClose(sign_np, sign_tf.eval(), atol=atol)
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)]:
matrix = (np.eye(20) * 1e-6).astype(np_dtype)
sign_np, log_abs_det_np = np.linalg.slogdet(matrix)
with self.session(use_gpu=True):
sign_tf, log_abs_det_tf = linalg.slogdet(matrix)
self.assertAllClose(log_abs_det_np, log_abs_det_tf.eval(), atol=atol)
self.assertAllClose(sign_np, sign_tf.eval(), 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)]:
matrix = _RandomPDMatrix(n, self.rng, np_dtype)
sign_np, log_abs_det_np = np.linalg.slogdet(matrix)
with self.session(use_gpu=True):
sign_tf, log_abs_det_tf = linalg.slogdet(matrix)
self.assertAllClose(log_abs_det_np, log_abs_det_tf.eval(), atol=atol)
self.assertAllClose(sign_np, sign_tf.eval(), 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)]:
matrix = _RandomPDMatrix(n, self.rng, np_dtype)
sign_np, log_abs_det_np = np.linalg.slogdet(matrix)
with self.session(use_gpu=True):
sign_tf, log_abs_det_tf = linalg.slogdet(matrix)
self.assertAllClose(log_abs_det_np, log_abs_det_tf.eval(), atol=atol)
self.assertAllClose(sign_np, sign_tf.eval(), atol=atol)