在MPI_Comm_rank()中使用brew、git或内置于MPI中的mpi错误
在MPI_Comm_rank()中使用brew、git或内置于MPI中的mpi错误
提问于 2018-02-01 23:47:39
我不能让MPI在我的MacBook专业上工作。特别是，当我试图调用MPI_Comm_rank()时，它会阻塞故障。下面是一个示例程序：
#include "mpi.h"
#include <iostream>
int main(int argc, char *argv[]) {
std::cout << "Entered main\n";
// Initialize parallel
int rank, numProcess;
MPI_Status status;
MPI_Init(&argc, &argv);
std::cout << "Init\n";
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
std::cout << "Rank\n";
MPI_Comm_size(MPI_COMM_WORLD, &numProcess);
std::cout << "Initialized MPI; rank " << rank << "\n";
MPI_Finalize();
return 0;
}它使用mpic++ mpi_test.cpp -o mpi_test编译得很好，但随后我尝试通过调用mpirun -np 2 ./mpi_test来运行它，并获得以下错误：
Entered main
Entered main
Init
Init
[Bens-MacBook-Pro:22004] *** Process received signal ***
[Bens-MacBook-Pro:22004] Signal: Segmentation fault: 11 (11)
[Bens-MacBook-Pro:22004] Signal code: Address not mapped (1)
[Bens-MacBook-Pro:22004] Failing at address: 0x10000004c
[Bens-MacBook-Pro:22004] [ 0] 0 libsystem_platform.dylib 0x00007fffc0118b3a _sigtramp + 26
[Bens-MacBook-Pro:22004] [ 1] 0 ??? 0x0000000113f92978 0x0 + 4630063480
[Bens-MacBook-Pro:22004] [ 2] 0 mpi_test 0x00000001078e40d1 main + 81
[Bens-MacBook-Pro:22004] [ 3] 0 libdyld.dylib 0x00007fffbff09235 start + 1
[Bens-MacBook-Pro:22004] *** End of error message ***
[Bens-MacBook-Pro:22005] *** Process received signal ***
[Bens-MacBook-Pro:22005] Signal: Segmentation fault: 11 (11)
[Bens-MacBook-Pro:22005] Signal code: Address not mapped (1)
[Bens-MacBook-Pro:22005] Failing at address: 0x10000004c
[Bens-MacBook-Pro:22005] [ 0] 0 libsystem_platform.dylib 0x00007fffc0118b3a _sigtramp + 26
[Bens-MacBook-Pro:22005] [ 1] 0 ??? 0x000000004fc26c50 0x0 + 1338141776
[Bens-MacBook-Pro:22005] [ 2] 0 mpi_test 0x000000010ffd90d1 main + 81
[Bens-MacBook-Pro:22005] [ 3] 0 libdyld.dylib 0x00007fffbff09235 start + 1
[Bens-MacBook-Pro:22005] [ 4] 0 ??? 0x0000000000000001 0x0 + 1
[Bens-MacBook-Pro:22005] *** End of error message ***
-------------------------------------------------------
Primary job terminated normally, but 1 process returned
a non-zero exit code. Per user-direction, the job has been aborted.
-------------------------------------------------------
--------------------------------------------------------------------------
mpirun noticed that process rank 1 with PID 0 on node Bens-MacBook-Pro exited on signal 11 (Segmentation fault: 11).
--------------------------------------------------------------------------注意，它通过了MPI_Init()，并且在MPI_Comm()中失败了。
当我(i)从git下载最新的OpenMpi库并直接安装它，以及(ii)通过brew安装OpenMPI时，我也会遇到同样的错误。
回答 1
Stack Overflow用户
回答已采纳
发布于 2018-02-02 16:22:43
这个问题似乎是由于OpenMPI在$PATH中的版本相互冲突造成的。当我重置我的$PATH变量并专门使用brew安装编译和运行时，一切都正常。此时，我从设备中卸载并删除所有mpi库，然后重新安装并链接brew版本。现在一切都正常了。如果其他人参与了这件事。
页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/48573602
复制相关文章
相似问题
腾讯云开发者
