在Ubuntu14.01 LTS下安装OpenMPI

安装与测试

系统：Ubuntu14.04 LTS

安装OpenMPI

Ctrl+Alt+T 打开终端，输入命令直接安装
:~$ sudo apt-get install libopenmpi-dev openmpi-bin openmpi-doc

测试是否安装成功

代码

//HelloMpi.c#include <stdio.h>#include <mpi.h>int main(int argc, char *argv[]){    int myrank, nprocs;    MPI_Init(&argc, &argv);    MPI_Comm_size(MPI_COMM_WORLD, &nprocs);    MPI_Comm_rank(MPI_COMM_WORLD, &myrank);    printf("hello from processror %d of %d\n", myrank, nprocs);    MPI_Finalize();    return 0;}

编译

:~/Mine/code/testMPI$ mpicc HelloMpi.c -o HelloMpi

执行

:mpiexec -n 4 HelloMpi

输出结果

hello from processror 2 of 4hello from processror 3 of 4hello from processror 0 of 4

参考

Ubuntu 12.04 架设 OpenMPI Cluster