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36 changes: 30 additions & 6 deletions dpctl/tensor/_ctors.py
Original file line number Diff line number Diff line change
Expand Up @@ -1247,19 +1247,31 @@ def tril(X, k=0):

if k >= shape[nd - 1] - 1:
res = dpt.empty(
X.shape, dtype=X.dtype, order=order, sycl_queue=X.sycl_queue
X.shape,
dtype=X.dtype,
order=order,
usm_type=X.usm_type,
sycl_queue=X.sycl_queue,
)
hev, _ = ti._copy_usm_ndarray_into_usm_ndarray(
src=X, dst=res, sycl_queue=X.sycl_queue
)
hev.wait()
elif k < -shape[nd - 2]:
res = dpt.zeros(
X.shape, dtype=X.dtype, order=order, sycl_queue=X.sycl_queue
X.shape,
dtype=X.dtype,
order=order,
usm_type=X.usm_type,
sycl_queue=X.sycl_queue,
)
else:
res = dpt.empty(
X.shape, dtype=X.dtype, order=order, sycl_queue=X.sycl_queue
X.shape,
dtype=X.dtype,
order=order,
usm_type=X.usm_type,
sycl_queue=X.sycl_queue,
)
hev, _ = ti._tril(src=X, dst=res, k=k, sycl_queue=X.sycl_queue)
hev.wait()
Expand Down Expand Up @@ -1290,19 +1302,31 @@ def triu(X, k=0):

if k > shape[nd - 1]:
res = dpt.zeros(
X.shape, dtype=X.dtype, order=order, sycl_queue=X.sycl_queue
X.shape,
dtype=X.dtype,
order=order,
usm_type=X.usm_type,
sycl_queue=X.sycl_queue,
)
elif k <= -shape[nd - 2] + 1:
res = dpt.empty(
X.shape, dtype=X.dtype, order=order, sycl_queue=X.sycl_queue
X.shape,
dtype=X.dtype,
order=order,
usm_type=X.usm_type,
sycl_queue=X.sycl_queue,
)
hev, _ = ti._copy_usm_ndarray_into_usm_ndarray(
src=X, dst=res, sycl_queue=X.sycl_queue
)
hev.wait()
else:
res = dpt.empty(
X.shape, dtype=X.dtype, order=order, sycl_queue=X.sycl_queue
X.shape,
dtype=X.dtype,
order=order,
usm_type=X.usm_type,
sycl_queue=X.sycl_queue,
)
hev, _ = ti._triu(src=X, dst=res, k=k, sycl_queue=X.sycl_queue)
hev.wait()
Expand Down
22 changes: 22 additions & 0 deletions dpctl/tests/test_usm_ndarray_ctor.py
Original file line number Diff line number Diff line change
Expand Up @@ -1503,6 +1503,28 @@ def test_triu(dtype):
assert np.array_equal(Ynp, dpt.asnumpy(Y))


@pytest.mark.parametrize("tri_fn", [dpt.tril, dpt.triu])
@pytest.mark.parametrize("usm_type", ["device", "shared", "host"])
def test_tri_usm_type(tri_fn, usm_type):
q = get_queue_or_skip()
dtype = dpt.uint16

shape = (2, 3, 4, 5, 5)
size = np.prod(shape)
X = dpt.reshape(
dpt.arange(size, dtype=dtype, usm_type=usm_type, sycl_queue=q), shape
)
Y = tri_fn(X) # main execution branch
assert Y.usm_type == X.usm_type
assert Y.sycl_queue == q
Y = tri_fn(X, k=-6) # special case of Y == X
assert Y.usm_type == X.usm_type
assert Y.sycl_queue == q
Y = tri_fn(X, k=6) # special case of Y == 0
assert Y.usm_type == X.usm_type
assert Y.sycl_queue == q


def test_tril_slice():
q = get_queue_or_skip()

Expand Down