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cudaErrorUnknown (999)cudaErrorUnknown is a catch-all for errors that don't match other codes. Requires deeper debugging.
CUDA error: unknown error cudaErrorUnknown
Use debugging tools.
compute-sanitizer ./your_app
# Check dmesg for GPU errors
dmesg | grep -i nvidiaClear state.
nvidia-smi -r # Reset GPUGet latest fixes.
sudo apt update && sudo apt install nvidia-driver-545May hide serious issue.
// Ignoring unknown errorInvestigate thoroughly.
if (err == cudaErrorUnknown) {
log_error("Unknown CUDA error");
check_dmesg();
try_gpu_reset();
}Use compute-sanitizer, check dmesg, try updating driver.
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