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arch: prevent erroring at init in isolation #2815

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arch: prevent erroring at init in isolation #2815

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cae0b9d
arch: prevent erroring at init in isolation
mloubout Jan 6, 2026
a627fe4
arch: Warn users if driver version is 0
JDBetteridge Jan 6, 2026
8dad3b5
misc: Refactor long conditional
JDBetteridge Jan 9, 2026
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15 changes: 8 additions & 7 deletions devito/arch/archinfo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -656,13 +656,14 @@ def check_cuda_runtime():
driver_version = ctypes.c_int()
runtime_version = ctypes.c_int()

if cuda.cudaDriverGetVersion(ctypes.byref(driver_version)) == 0 and \
cuda.cudaRuntimeGetVersion(ctypes.byref(runtime_version)) == 0:
driver_version = driver_version.value
runtime_version = runtime_version.value

driver_v = parse(str(driver_version/1000))
runtime_v = parse(str(runtime_version/1000))
# Check the get*Version call succeeds and is a non-zero value
call_success = cuda.cudaDriverGetVersion(ctypes.byref(driver_version)) == 0
call_success &= cuda.cudaRuntimeGetVersion(ctypes.byref(runtime_version)) == 0
call_success &= bool(driver_version.value)

if call_success:
driver_v = parse(str(driver_version.value/1000))
runtime_v = parse(str(runtime_version.value/1000))
# First check the "major" version, known to be incompatible
if driver_v.major < runtime_v.major:
raise RuntimeError(
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