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Fix dpnp.linalg.eigh() hang with complex dtypes on CPU #1832

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Merged
merged 2 commits into from
May 20, 2024
Merged

Fix dpnp.linalg.eigh() hang with complex dtypes on CPU #1832

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4a53451
Wait for each host_task before calling _heevd
vlad-perevezentsev May 17, 2024
994c33f
Merge branch 'master' into fix_heevd_hang_cpu
antonwolfy May 20, 2024
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6 changes: 3 additions & 3 deletions dpnp/linalg/dpnp_utils_linalg.py
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Original file line number Diff line number Diff line change
Expand Up @@ -147,12 +147,12 @@ def _batched_eigh(a, UPLO, eigen_mode, w_type, v_type):
)

# TODO: Remove this w/a when MKLD-17201 is solved.
# Waiting for a host task executing an OneMKL LAPACK syevd call
# Waiting for a host task executing an OneMKL LAPACK syevd/heevd call
# on CPU causes deadlock due to serialization of all host tasks
# in the queue.
# We need to wait for each host tasks before calling _seyvd
# We need to wait for each host tasks before calling _seyvd and _heevd
# to avoid deadlock.
if lapack_func == "_syevd" and is_cpu_device:
if is_cpu_device:
ht_list_ev[2 * i].wait()

# call LAPACK extension function to get eigenvalues and
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