fedora16安装openmpi

安装 ：$ sudo yum install openmpi openmpi-devel openmpi-libs

安装之后，查看安装位置：

$ whereis oenmpi

openmpi:/usr/lib64/openmpi


配置 ：将MPI的bin和lib加入到PATH 和LD_LIBRARY_PATH中去。

打开$HOME/.bash_profile
在最后加上

PATH=$PATH:/usr/lib64/openmpi/bin

LD_LIBRARY_PATH=/usr/lib64/openmpi/lib

保存

注销后登录查看配置结果

$echo $PATH

$echo $LD_LIBRARY_PATH

结果中显示有/usr/lib64/openmpi/lbin和 /usr/lib64/openmpi/lib则为配置成功

测试：

hello.c:

#include <stdio.h>  #include <mpi.h>  #include <unistd.h>    int main(int argc, char *argv[]) {     int numprocs, rank, namelen;     char processor_name[MPI_MAX_PROCESSOR_NAME];     MPI_Init(&argc, &argv);     MPI_Comm_size(MPI_COMM_WORLD, &numprocs);     MPI_Comm_rank(MPI_COMM_WORLD, &rank);     MPI_Get_processor_name(processor_name, &namelen);     printf("Hello World! from process %d out of %d on %s/n", rank, numprocs, processor_name);     MPI_Finalize();       return 0;  }    编译：mpicc -o hello hello.c  运行：mpirun -np5 hello  运行结果显示：  Hello World! from process 0 out of 5 on Shisir  Hello World! from process 4 out of 5 on Shisir  Hello World! from process 2 out of 5 on Shisir  Hello World! from process 3 out of 5 on Shisir  Hello World! from process 1 out of 5 on Shisir    恭喜  安装配置成功！