如何获取cuda设备的核数？

#include <iostream>
#include <cuda_runtime.h>

int main() {
    int deviceCount;
    cudaGetDeviceCount(&deviceCount);

    if (deviceCount == 0) {
        std::cerr << "No CUDA devices found." << std::endl;
        return -1;
    }

    for (int i = 0; i < deviceCount; ++i) {
        cudaDeviceProp prop;
        cudaGetDeviceProperties(&prop, i);

        std::cout << "Device "<< i << " (" << prop.name << ") has "
                  << prop.multiProcessorCount << " multiprocessors, "
                  << prop.multiProcessorCount * prop.maxThreadsPerMultiProcessor
                  << " CUDA cores." << std::endl;
    }

    return 0;
}

nvcc -o get_cuda_cores get_cuda_cores.cu
./get_cuda_cores