Fix CUDA test without devices.
Getting the runtime version fails when no devices are present.
@@ -9,20 +9,21 @@ int cuda_devices(void) {
int main(void) {
std::cout << "Compiled against CUDA version: " << CUDART_VERSION << "\n";
+
int runtime_version = 0;
- cudaError_t r = cudaRuntimeGetVersion(&runtime_version);
- if (r != cudaSuccess) {
- std::cout << "Couldn't obtain CUDA runtime version (error " << r << "). Exiting.\n";
- return -1;
- }
+ switch (cudaError_t r = cudaRuntimeGetVersion(&runtime_version)) {
+ case cudaSuccess:
std::cout << "CUDA runtime version: " << runtime_version << "\n";
-
- int n = cuda_devices();
- if (n == 0) {
+ break;
+ case cudaErrorNoDevice:
std::cout << "No CUDA hardware found. Exiting.\n";
return 0;
+ default:
+ std::cout << "Couldn't obtain CUDA runtime version (error " << r << "). Exiting.\n";
+ return -1;
}
+ int n = cuda_devices();
std::cout << "Found " << n << " CUDA devices.\n";
return 0;
}
