如何在MPI中列出每个节点的可用资源？

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <mpi.h>

int main(int argc, char** argv) {
    MPI_Init(&argc, &argv);

    int rank, size;
    char processor_name[MPI_MAX_PROCESSOR_NAME];
    int name_len;

    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &size);
    MPI_Get_processor_name(processor_name, &name_len);

    // 获取当前节点的可用资源信息，这里以获取CPU核数为例
    int num_cores = get_num_cores(); // 自定义函数，获取当前节点的CPU核数

    // 将当前节点的资源信息发送给根节点
    int* all_num_cores = NULL;
    if (rank == 0) {
        all_num_cores = (int*)malloc(size * sizeof(int));
    }
    MPI_Gather(&num_cores, 1, MPI_INT, all_num_cores, 1, MPI_INT, 0, MPI_COMM_WORLD);

    // 根节点打印所有节点的资源信息
    if (rank == 0) {
        for (int i = 0; i < size; i++) {
            printf("Node %d: %s, Num Cores: %d\n", i, processor_name, all_num_cores[i]);
        }
        free(all_num_cores);
    }

    MPI_Finalize();
    return 0;
}