C++ MPI_Finalize中的总线错误

我正在为一个并行计算类编写一个MPI程序。我已经让代码正常工作，并且它输出了正确的结果，但是当我尝试用多个进程调用MPI_Finalize时，我得到了一个Buss错误。我通过Eclipse中的PTP环境在OSX上运行它。错误如下：

[Fruity:49034] *** Process received signal ***
[Fruity:49034] Signal: Bus error (10)
[Fruity:49034] Signal code:  (2)
[Fruity:49034] Failing at address: 0x100336d7e
[Fruity:49034] [ 0] 2   libSystem.B.dylib                   0x00007fff865cc1ba _sigtramp + 26
[Fruity:49034] [ 1] 3   ???                                 0x0000000000000000 0x0 + 0
[Fruity:49034] [ 2] 4   libSystem.B.dylib                   0x00007fff86570c27 tiny_malloc_from_free_list + 1196
[Fruity:49034] [ 3] 5   libSystem.B.dylib                   0x00007fff8656fabd szone_malloc_should_clear + 242
[Fruity:49034] [ 4] 6   libopen-pal.0.dylib                 0x0000000100187b9f opal_memory_base_open + 527
[Fruity:49034] [ 5] 7   libSystem.B.dylib                   0x00007fff8656f98a malloc_zone_malloc + 82
[Fruity:49034] [ 6] 8   libSystem.B.dylib                   0x00007fff8656dc88 malloc + 44
[Fruity:49034] [ 7] 9   libSystem.B.dylib                   0x00007fff8657846d asprintf + 157
[Fruity:49034] [ 8] 10  libopen-rte.0.dylib                 0x000000010013aebc orte_schema_base_get_job_segment_name + 108
[Fruity:49034] [ 9] 11  libopen-rte.0.dylib                 0x000000010013d899 orte_smr_base_set_proc_state + 57
[Fruity:49034] [10] 12  libmpi.0.dylib                      0x0000000100063758 ompi_mpi_finalize + 312
[Fruity:49034] [11] 13  Assignment31                        0x0000000100002642 main + 491
[Fruity:49034] [12] 14  Assignment31                        0x0000000100001688 start + 52
[Fruity:49034] *** End of error message ***
mpirun noticed that job rank 0 with PID 49033 on node Fruity.local exited on signal 15 (Terminated).
1 additional process aborted (not shown)

这是我的代码的主要功能。我确信这里有一些C++的坏实践（我多年来没有使用过它，但是它自学了），但是它确实输出了正确的值。如果我需要发布文件的其余部分，我可以这样做。我只是不想让这成为一个巨大的问题，如果有什么明显的错误

int main(int argc, char* argv[]){
    /* start up MPI */
    MPI_Init(&argc, &argv);

    /* find out process rank */
    MPI_Comm_rank(MPI_COMM_WORLD, &myRank);

    /* find out number of processes */
    MPI_Comm_size(MPI_COMM_WORLD, &numProcs);


    /* find which nodes this processor is responsible for */
    findStartAndEndPositions();

    /*Intitialize the array to its starting values. */
    initializeArray();

    /*Find the elements that are dependent on outside processors */
    findDependentElements();

    MPI_Barrier(MPI_COMM_WORLD);
    if(myRank == 0){
        startTime = MPI_Wtime();
        printArray();
    }

    int iter;
    for(iter = 0; iter < NUM_ITERATIONS; iter++){
        doCommunication();
        MPI_Barrier(MPI_COMM_WORLD);
        doIteration();
    }


    double check = computeCheck();
    double receive = 0;

    if(myRank == 0){
        MPI_Reduce(&check, &receive, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
        std::cout << "The total time was: " << MPI_Wtime() - startTime << " \n";
        std::cout << "The checksum was: " << receive << " \n";
        printArray();
    }

    else{
        MPI_Reduce(&check, &receive, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
    }

    /* shut down MPI */
    MPI_Barrier(MPI_COMM_WORLD);
    MPI_Finalize();
    return 0;
}

intmain（intargc，char*argv[]）{
/*启动MPI*/
MPI_Init（&argc，&argv）；
/*找出工艺等级*/
MPI_Comm_rank（MPI_Comm_WORLD和myRank）；
/*找出进程的数量*/
MPI通信大小（MPI通信世界和numProcs）；
/*查找此处理器负责的节点*/
findStartAndEndPositions（）；
/*将数组初始化为其起始值*/
初始化array（）；
/*查找依赖于外部处理器的元素*/
findDependentElements（）；
MPI_屏障（MPI_通信世界）；
如果（myRank==0）{
startTime=MPI_Wtime（）；
printArray（）；
}
国际热核实验堆；
对于（iter=0；iterstd:：cout我不确定这是否是原因，但MPI_Reduce通常只有一行，不需要写两行。试试看是否有帮助

MPI_Reduce(&check, &receive, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
if(myRank == 0){
     std::cout << "The total time was: " << MPI_Wtime() - startTime << " \n";
     std::cout << "The checksum was: " << receive << " \n";
     printArray();
}

MPI-Reduce（检查和接收，1，MPI-DOUBLE，MPI-SUM，0，MPI-COMM-WORLD）；
如果（myRank==0）{
std：：不能。不过谢谢你的想法。恐怕你必须发布整个程序。否则我们看不到整个画面。我刚刚添加了一个函数，错误似乎是由该函数引起的。你的temp超出了使用范围，除非你的start==0，应该是temp[pos start]这解释了为什么它在非0级处理器上失败。谢谢！
MPI_Reduce(&check, &receive, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
if(myRank == 0){
     std::cout << "The total time was: " << MPI_Wtime() - startTime << " \n";
     std::cout << "The checksum was: " << receive << " \n";
     printArray();
}