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More robust pre-loading of Python Nvidia nvrtc. #51

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Merged
duburcqa merged 3 commits into from
Jan 6, 2026
Merged

More robust pre-loading of Python Nvidia nvrtc. #51

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4cf0ba7
More robust pre-loading of Python Nvidia nvrtc.
duburcqa Jan 6, 2026
b9ac4d3
Fix indentation in Nvidia compiler runtime preload
duburcqa Jan 6, 2026
0172516
Simplify error handling for Nvidia compiler runtime
duburcqa Jan 6, 2026
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12 changes: 7 additions & 5 deletions src/bridge/gs_madrona/renderer_gs.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import os
import ctypes
from importlib.metadata import distribution, PackageNotFoundError
from pathlib import Path
from typing import Tuple

Expand Down Expand Up @@ -62,11 +63,12 @@ def __init__(

# Preload Nvidia compiler runtime if available (i.e. torch is not built from source)
try:
import nvidia.cuda_nvrtc
nvrtc_dir = Path(nvidia.cuda_nvrtc.__file__).parent.absolute()
libnvrtc_path, *_ = filter(Path.is_file, (nvrtc_dir / "lib").glob("libnvrtc.so.1*"))
ctypes.CDLL(libnvrtc_path, ctypes.RTLD_LOCAL)
except ImportError:
dist = distribution("nvidia_cuda_nvrtc_cu12")
for file in dist.files:
if file.name.startswith("libnvrtc.so.1"):
ctypes.CDLL(dist.locate_file(file), ctypes.RTLD_LOCAL)
break
except PackageNotFoundError:
pass

self.madrona = MadronaBatchRenderer(
Expand Down