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Disable SVML AVX-512 routines in the pyna update script #1444

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merged 1 commit into from
Jan 5, 2024
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Disable SVML AVX-512 routines in the pyna update script #1444

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9 changes: 9 additions & 0 deletions networks/update_pynucastro_nets.py
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Original file line number Diff line number Diff line change
@@ -1,10 +1,18 @@
#!/usr/bin/env python3
"""Update all the pynucastro networks in the current directory."""

import os
import subprocess
import sys
from pathlib import Path

# Disable slightly-less-precise AVX-512 SVML routines to avoid roundoff diffs
# when different machines regenerate the networks. Accuracy is important here,
# and these calculations aren't a bottleneck. See pynucastro/conftest.py for
# more details.
env = os.environ.copy()
env["NPY_DISABLE_CPU_FEATURES"] = "AVX512F AVX512CD AVX512_SKX"

cwd = Path.cwd()
for net_file in sorted(cwd.glob("**/pynucastro.net")):
network_dir = net_file.parent
Expand All @@ -23,6 +31,7 @@
result = subprocess.run(
[sys.executable, update_script],
cwd=network_dir,
env=env,
capture_output=False,
check=False,
)
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