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Close rtsys singleton when cuda.close() is called #455

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Merged
gmarkall merged 3 commits into from
Sep 4, 2025
Merged

Close rtsys singleton when cuda.close() is called #455

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ca9fb9f
close rtsys when cuda.close is called
brandon-b-miller Sep 2, 2025
33dd286
clean
brandon-b-miller Sep 2, 2025
589376d
small changes
brandon-b-miller Sep 3, 2025
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5 changes: 5 additions & 0 deletions numba_cuda/numba/cuda/api.py
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Original file line number Diff line number Diff line change
Expand Up @@ -508,6 +508,11 @@ def close():
Explicitly clears all contexts in the current thread, and destroys all
contexts if the current thread is the main thread.
"""
# Must clear memsys object in case it has been used already
from .memory_management import rtsys

rtsys.close()

devices.reset()


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8 changes: 8 additions & 0 deletions numba_cuda/numba/cuda/memory_management/nrt.py
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Expand Up @@ -69,10 +69,18 @@ def __new__(cls, *args, **kwargs):

def __init__(self):
"""Initialize memsys module and variable"""
self._reset()

def _reset(self):
"""Reset to the uninitialized state"""
self._memsys_module = None
self._memsys = None
self._initialized = False

def close(self):
"""Close and reset"""
self._reset()

def _compile_memsys_module(self):
"""
Compile memsys.cu and create a module from it in the current context
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