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Fix silently ignored CUDA errors in nvcuda backend #409

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Fix silently ignored CUDA errors in nvcuda backend #409

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5 changes: 5 additions & 0 deletions kernel_tuner/utils/nvcuda.py
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Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,9 @@

def cuda_error_check(error):
"""Checking the status of CUDA calls using the NVIDIA cuda-python backend."""
# cuda-python always returns a tuple, also for calls that only return a status, e.g. (CUresult,)
if isinstance(error, tuple) and len(error) == 1:
error = error[0]
if isinstance(error, driver.CUresult):
if error != driver.CUresult.CUDA_SUCCESS:
_, name = driver.cuGetErrorName(error)
Expand All @@ -60,6 +63,8 @@ def cuda_error_check(error):
if error != nvrtc.nvrtcResult.NVRTC_SUCCESS:
_, desc = nvrtc.nvrtcGetErrorString(error)
raise RuntimeError(f"NVRTC error: {desc.decode()}")
else:
raise TypeError(f"Unable to check CUDA status of unexpected type {type(error).__name__}: {error!r}")


def _check(call_result):
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