def generate_2D(N, corners):
if corners:
print("Generating %dx%d 2-D adjacency system with corners..." %
(N**2, N**2))
A = np.zeros((N**2, N**2)) + 8 * np.eye(N**2)
else:
print("Generating %dx%d 2-D adjacency system without corners..." %
(N**2, N**2))
A = np.zeros((N**2, N**2)) + 4 * np.eye(N**2)
# These are the same for both cases
off_one = np.full(N**2 - 1, -1, dtype=np.float64)
A += np.diag(off_one, k=1)
A += np.diag(off_one, k=-1)
off_N = np.full(N * (N - 1), -1, dtype=np.float64)
A += np.diag(off_N, k=N)
A += np.diag(off_N, k=-N)
# If we have corners then we have four more cases
if corners:
off_N_plus = np.full(N * (N - 1) - 1, -1, dtype=np.float64)
A += np.diag(off_N_plus, k=N + 1)
A += np.diag(off_N_plus, k=-(N + 1))
off_N_minus = np.full(N * (N - 1) + 1, -1, dtype=np.float64)
A += np.diag(off_N_minus, k=N - 1)
A += np.diag(off_N_minus, k=-(N - 1))
# Then we can generate a random b matrix
b = np.random.rand(N**2)
return A, b
def generate_random(N):
print("Generating %dx%d system..." % (N, N))
# Generate a random matrix
A = np.random.rand(N, N)
# Make sure that it is diagonally dominate
A = A + N * np.eye(N)
# Generate a random vector
b = np.random.rand(N)
return A, b
def generate_random(N):
print("Generating %dx%d symmetric positive definite system..." % (N, N))
# Generate a random matrix
A = np.random.rand(N, N)
# Make sure the matrix is symmetric
A = 0.5 * (A + A.T)
# Now make sure that it is positive definite
A = A + N * np.eye(N)
b = np.random.rand(N)
return A, b
def test():
assert lg.count_nonzero(lg.array([])) == 0
assert lg.count_nonzero(lg.array([], dtype="?")) == 0
assert_equal(lg.nonzero([]), np.nonzero([]))
assert lg.count_nonzero(lg.array([[], []])) == 0
assert lg.count_nonzero(lg.array([[], []], dtype="?")) == 0
assert_equal(lg.nonzero([[], []]), np.nonzero([[], []]))
assert lg.count_nonzero(lg.array([0])) == 0
assert lg.count_nonzero(lg.array([0], dtype="?")) == 0
assert_equal(lg.nonzero(lg.array([0])), ([],))
assert lg.count_nonzero(lg.array([1])) == 1
assert lg.count_nonzero(lg.array([1], dtype="?")) == 1
assert_equal(lg.nonzero([1]), np.nonzero([1]))
assert lg.count_nonzero(lg.array(0)) == 0
assert lg.count_nonzero(lg.array(0, dtype="?")) == 0
assert_equal(lg.nonzero(0), np.nonzero(0))
assert lg.count_nonzero(lg.array(1)) == 1
assert lg.count_nonzero(lg.array(1, dtype="?")) == 1
assert_equal(lg.nonzero(1), np.nonzero(1))
x = lg.array([1, 0, 2, -1, 0, 0, 8])
x_np = np.array([1, 0, 2, -1, 0, 0, 8])
assert lg.count_nonzero(x) == 4
assert_equal(lg.nonzero(x), np.nonzero(x_np))
# TBD: this will work once nonzero returns output in row-major output
# x = lg.array([[0, 1, 0], [2, 0, 3]])
# x_np = np.array([[0, 1, 0], [2, 0, 3]])
# assert (lg.count_nonzero(x) == 3)
# assert_equal(lg.nonzero(x), np.nonzero(x_np))
x_lg = lg.eye(3)
x_np = np.eye(3)
assert lg.count_nonzero(x_lg) == np.count_nonzero(x_np)
assert_equal(lg.nonzero(x_lg), np.nonzero(x_np))
# TBD: this will work once nonzero returns output in row-major output
# x = lg.array([[[0, 1], [1, 1], [7, 0], [1, 0], [0, 1]], [[3, 0], [0, 3], [0, 0], [2, 2], [0, 19]]]) # noqa E501
# x_np = np.array([[[0, 1], [1, 1], [7, 0], [1, 0], [0, 1]], [[3, 0], [0, 3], [0, 0], [2, 2], [0, 19]]]) # noqa E501
# assert (lg.count_nonzero(x) == np.count_nonzero(x_np))
# assert_equal(lg.count_nonzero(x, axis=0), np.count_nonzero(x_np, axis=0))
# assert_equal(lg.count_nonzero(x, axis=1), np.count_nonzero(x_np, axis=1))
# assert_equal(lg.count_nonzero(x, axis=2), np.count_nonzero(x_np, axis=2))
# assert (lg.count_nonzero(x, axis=(0, 1, 2)) == np.count_nonzero(x_np, axis=(0, 1, 2))) # noqa E501
# assert_equal(lg.nonzero(x), np.nonzero(x_np))
# x_np = np.concatenate((x_np,) * 2000, axis=1)
# x = lg.array(x_np)
# assert (lg.count_nonzero(x) == np.count_nonzero(x_np))
# assert_equal(lg.count_nonzero(x, axis=0), np.count_nonzero(x_np, axis=0))
# assert_equal(lg.count_nonzero(x, axis=1), np.count_nonzero(x_np, axis=1))
# assert_equal(lg.count_nonzero(x, axis=2), np.count_nonzero(x_np, axis=2))
# assert (lg.count_nonzero(x, axis=(0, 1, 2)) == np.count_nonzero(x_np, axis=(0, 1, 2))) # noqa E501
# assert_equal(lg.nonzero(x), np.nonzero(x_np))
# lg_nonzero = lg.nonzero(x)
# np_nonzero = np.nonzero(x_np)
# assert_equal(lg_nonzero, np_nonzero)
assert_equal(lg.nonzero(0), ([],))
assert_equal(lg.nonzero(1), ([0],))
x_np = np.random.randn(100)
indices = np.random.choice(
np.arange(x_np.size), replace=False, size=int(x_np.size * 0.2)
)
x_np[indices] = 0
x = lg.array(x_np)
assert lg.count_nonzero(x) == np.count_nonzero(x_np)
lg_nonzero = lg.nonzero(x)
np_nonzero = np.nonzero(x_np)
assert_equal(lg_nonzero, np_nonzero)
# x_np = x_np.reshape(10, 10)
# x = lg.array(x_np)
# assert (lg.count_nonzero(x) == np.count_nonzero(x_np))
# lg_nonzero = lg.nonzero(x)
# np_nonzero = np.nonzero(x_np)
# assert_equal(lg_nonzero, np_nonzero)
return
def test():
x = lg.array([])
r = lg.sum(x)
assert r == 0
x = lg.array([1])
r = lg.sum(x)
assert r == 1
x = lg.eye(3)
r = lg.sum(x)
assert r == 3
x = lg.array([1, 2, 3, 4.0])
r = lg.sum(x)
r2 = lg.add.reduce(x)
assert r == r2 == 10
x = lg.array([1, 2, 3, 4.0, 5.0])
r = lg.prod(x)
r2 = lg.multiply.reduce(x)
assert r == r2 == 120
asserts.assert_equal(lg.sum([]), np.sum([]))
asserts.assert_equal(lg.add.reduce([]), np.add.reduce([]))
asserts.assert_equal(lg.sum([[], []]), np.sum([[], []]))
asserts.assert_equal(lg.add.reduce([[], []]), np.add.reduce([[], []]))
asserts.assert_equal(lg.sum(lg.array([0])), np.sum(np.array([0])))
asserts.assert_equal(
lg.add.reduce(lg.array([0])), np.add.reduce(np.array([0]))
)
asserts.assert_equal(lg.sum([1]), np.sum([1]))
asserts.assert_equal(lg.add.reduce([1]), np.add.reduce([1]))
asserts.assert_equal(lg.sum(0), np.sum(0))
asserts.assert_equal(lg.add.reduce(0), np.add.reduce(0))
asserts.assert_equal(lg.sum(1), np.sum(1))
asserts.assert_equal(lg.add.reduce(1), np.add.reduce(1))
x = lg.array([1, 0, 2, -1, 0, 0, 8])
x_np = np.array([1, 0, 2, -1, 0, 0, 8])
asserts.assert_equal(lg.sum(x), np.sum(x_np))
asserts.assert_equal(lg.add.reduce(x), np.add.reduce(x_np))
x = lg.array([[0, 1, 0], [2, 0, 3]])
x_np = np.array([[0, 1, 0], [2, 0, 3]])
asserts.assert_equal(lg.sum(x), np.sum(x_np))
asserts.assert_equal(lg.add.reduce(x), np.add.reduce(x_np))
x = lg.eye(3)
x_np = np.eye(3)
asserts.assert_equal(lg.sum(x), np.sum(x_np))
asserts.assert_equal(lg.add.reduce(x), np.add.reduce(x_np))
x = lg.array(
[
[[0, 1], [1, 1], [7, 0], [1, 0], [0, 1]],
[[3, 0], [0, 3], [0, 0], [2, 2], [0, 19]],
]
)
x_np = np.array(
[
[[0, 1], [1, 1], [7, 0], [1, 0], [0, 1]],
[[3, 0], [0, 3], [0, 0], [2, 2], [0, 19]],
]
)
asserts.assert_equal(lg.sum(x, axis=0), np.sum(x_np, axis=0))
asserts.assert_equal(lg.sum(x, axis=1), np.sum(x_np, axis=1))
asserts.assert_equal(lg.sum(x, axis=2), np.sum(x_np, axis=2))
asserts.assert_equal(lg.add.reduce(x, axis=0), np.add.reduce(x_np, axis=0))
asserts.assert_equal(lg.add.reduce(x, axis=1), np.add.reduce(x_np, axis=1))
asserts.assert_equal(lg.add.reduce(x, axis=2), np.add.reduce(x_np, axis=2))
asserts.assert_equal(lg.sum(x), np.sum(x_np))
asserts.assert_equal(lg.add.reduce(x), np.add.reduce(x_np))
x_np = np.concatenate((x_np,) * 2000, axis=1)
x = lg.array(x_np)
asserts.assert_equal(lg.sum(x, axis=0), np.sum(x_np, axis=0))
asserts.assert_equal(lg.sum(x, axis=1), np.sum(x_np, axis=1))
asserts.assert_equal(lg.sum(x, axis=2), np.sum(x_np, axis=2))
asserts.assert_equal(lg.sum(x), np.sum(x_np))
asserts.assert_equal(lg.add.reduce(x, axis=0), np.add.reduce(x_np, axis=0))
asserts.assert_equal(lg.add.reduce(x, axis=1), np.add.reduce(x_np, axis=1))
asserts.assert_equal(lg.add.reduce(x, axis=2), np.add.reduce(x_np, axis=2))
asserts.assert_equal(lg.add.reduce(x), np.add.reduce(x_np))
x_np = np.random.randn(100)
indices = np.random.choice(
np.arange(x_np.size), replace=False, size=int(x_np.size * 0.2)
)
x_np[indices] = 0
x = lg.array(x_np)
asserts.assert_allclose(lg.sum(x), np.sum(x_np))
asserts.assert_allclose(lg.add.reduce(x), np.add.reduce(x_np))
x_np = x_np.reshape(10, 10)
x = lg.array(x_np)
asserts.assert_allclose(lg.sum(x), np.sum(x_np))
asserts.assert_allclose(lg.add.reduce(x), np.add.reduce(x_np))
return
