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Fix: Replace os.sched_getaffinity() with os.cpu_count() for Windows/macOS compatibility #1105

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Fix: Replace os.sched_getaffinity() with os.cpu_count() for Windows/macOS compatibility #1105

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Fix: Replace os.sched_getaffinity() with os.cpu_count() for cross-pla…
ishansurdi Dec 24, 2025
1b0aec7
chore: trigger CLA check
ishansurdi Dec 24, 2025
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6 changes: 3 additions & 3 deletions run_alphafold.py
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Original file line number Diff line number Diff line change
Expand Up @@ -234,23 +234,23 @@ class ModelsToRelax(enum.Enum):
flags.DEFINE_integer(
'jackhmmer_n_cpu',
# Unfortunately, os.process_cpu_count() is only available in Python 3.13+.
min(len(os.sched_getaffinity(0)), 8),
min(os.cpu_count() or 8, 8),
'Number of CPUs to use for Jackhmmer. Defaults to min(cpu_count, 8). Going'
' above 8 CPUs provides very little additional speedup.',
lower_bound=0,
)
flags.DEFINE_integer(
'hmmsearch_n_cpu',
# Unfortunately, os.process_cpu_count() is only available in Python 3.13+.
min(len(os.sched_getaffinity(0)), 8),
min(os.cpu_count() or 8, 8),
'Number of CPUs to use for HMMsearch. Defaults to min(cpu_count, 8). Going'
' above 8 CPUs provides very little additional speedup.',
lower_bound=0,
)
flags.DEFINE_integer(
'hhsearch_n_cpu',
# Unfortunately, os.process_cpu_count() is only available in Python 3.13+.
min(len(os.sched_getaffinity(0)), 8),
min(os.cpu_count() or 8, 8),
'Number of CPUs to use for HHsearch. Defaults to min(cpu_count, 8). Going'
' above 8 CPUs provides very little additional speedup.',
lower_bound=0,
Expand Down