标准C语言中的MPI SEND / RECV字符串数组

int MPI_Send(void *buf, int count, MPI_Datatype datatype, int dest, int tag, MPI_Comm comm)

int MPI_Recv(void *buf, int count, MPI_Datatype datatype, int source, int tag, MPI_Comm comm, MPI_Status *status)

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

#define MAX_STR_LEN 100

int main() {
    int rank, size;
    char str_array[3][MAX_STR_LEN] = {"Hello", "World", "MPI"};
    char recv_str[MAX_STR_LEN];

    MPI_Init(NULL, NULL);
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &size);

    if (rank == 0) {
        // 发送字符串数组给进程1
        MPI_Send(str_array, 3 * MAX_STR_LEN, MPI_CHAR, 1, 0, MPI_COMM_WORLD);
    } else if (rank == 1) {
        // 接收字符串数组并打印
        MPI_Recv(recv_str, 3 * MAX_STR_LEN, MPI_CHAR, 0, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
        printf("Received string array: %s, %s, %s\n", recv_str, recv_str + MAX_STR_LEN, recv_str + 2 * MAX_STR_LEN);
    }

    MPI_Finalize();
    return 0;
}