Redhat5.4安装mpich2-1.4.1p1全过程

最新推荐文章于 2021-08-20 10:51:29 发布

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本文档详细介绍了在Redhat5.4系统上安装和测试mpich2-1.4.1p1的步骤，包括配置主机文件、创建用户、设置NFS无密码登录、安装mpich2以及验证安装和测试MPI程序。

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1.配置环境

(1) 在两台机器上分别配置/etc/hosts (root用户)

192.168.100.37 amao991 （主节点）

192.168.100.50 amao992 (从节点)

(2) 在两台机器上分别创建amao用户

(3) 配置NFS

从amao992上mount主节点amao991上/home目录，设为开机挂载

(4) 配置无密码登录(在amao991上用amao用户)

ssh-keygen -t rsa
cp ~/.ssh/id_rsa.pub ~/.ssh/authorized_keys

2. 安装mpich2 (amao用户在amao991节点上)

(0)预备

在/home/amao下创建

program/mpich2-install目录

soft目录(放置mpich2-1.4.1p1.tar.gz)

study/mpi-study目录

(1) 解压

tar -zxvf mpich2-1.4.1p1.tar.gz

(2) 安装

./configure -prefix=/home/amao/program/mpich2-install/
make
make install

(3) 简单配置
[amao@amao991 ~]$ vi .bashrc
export PATH=/home/amao/program/mpich2-install/bin:$PATH
[amao@amao991 ~]$ source .bashrc
(4)验证
[amao@amao991 ~]$ which mpicc
~/program/mpich2-install/bin/mpicc
[amao@amao991 ~]$ which mpiexec
~/program/mpich2-install/bin/mpiexec

3. 测试

(1) machinefile //还是用ip把，用机器名时在测试例子时遇到了错误

[amao@amao991 ~]$ vi machinefile
202.117.10.37:4
202.117.10.50:2

(2) 测试

[amao@amao991 ~]$ mpiexec -f machinefile -n 6 ./soft/mpich2-1.4.1p1/examples/cpi
Process 0 of 6 is on amao991
Process 1 of 6 is on amao991
Process 3 of 6 is on amao991
Process 2 of 6 is on amao991
Process 4 of 6 is on amao992
Process 5 of 6 is on amao992
pi is approximately 3.1415926544231239, Error is 0.0000000008333307
wall clock time = 0.001708

4. 增强的配置

(1)把machinefile加入环境变量
cp ~/machinefile ~/program/mpich2-install/

[amao@amao991 mpich2-install]$ vi ~/.bashrc
export MPI_USEP4SSPORT=yes
export MPI_P4SSPORT=22
export P4_RSHCOMMAND=ssh
export PATH=/home/amao/program/mpich2-install/bin:$PATH
export HYDRA_HOST_FILE=/home/amao/program/mpich2-install/machinefile
[amao@amao991 mpich2-install]$ source ~/.bashrc
(2) 测试 (即不用在命令行声明machinefile了，缺省按照环境变量中的HYDRA_HOST_FILE进行)

[amao@amao991 ~]$ mpiexec -n 6 ./soft/mpich2-1.4.1p1/examples/cpi
Process 1 of 6 is on amao991
Process 2 of 6 is on amao991
Process 3 of 6 is on amao991
Process 0 of 6 is on amao991
Process 4 of 6 is on amao992
Process 5 of 6 is on amao992
pi is approximately 3.1415926544231239, Error is 0.0000000008333307
wall clock time = 0.001440