1) 设置ssh免密登录
[root@node1 ~]# ssh-keygen -N ''
[root@node1 ~]# ssh-copy-id root@node1.1000cc.net
[root@node1 ~]# ssh-copy-id root@node2.1000cc.net
[root@node1 ~]# ssh-copy-id root@node3.1000cc.net

2) 安装mpich
[root@node1 ~]# wget http://www.mpich.org/static/downloads/3.3.2/mpich-3.3.2.tar.gz

[root@node1 ~]# pscp.pssh -h host-list.txt ./mpich-3.3.2.tar.gz ~
[1] 18:04:07 [SUCCESS] root@node2.1000cc.net
[3] 18:04:07 [SUCCESS] root@node3.1000cc.net

[root@node1 ~]# pssh -h host-list.txt -i 'tar xvfz mpich-3.3.2.tar.gz'

[root@node1 ~]# pssh -h host-list.txt 'yum install gcc gcc-gfortran gcc-c++ -y

[1] 18:06:22 [SUCCESS] root@node1.1000cc.net
[2] 18:06:40 [SUCCESS] root@node2.1000cc.net
[3] 18:06:40 [SUCCESS] root@node3.1000cc.net

# 为所有主机[node1,node2,node3]安装mpich
[root@node1 ~]# cd mpich-3.3.2
[root@node1 mpich-3.3.2]# ./configure && make && make install

[root@node2 ~]# cd mpich-3.3.2
[root@node2 mpich-3.3.2]# ./configure && make && make install

[root@node3 ~]# cd mpich-3.3.2
[root@node3 mpich-3.3.2]# ./configure && make && make install

3) 确认mpich安装完成
[root@node1 ~]# mpiexec -version
HYDRA build details:
    Version:                                 3.3.2
    Release Date:                            Tue Nov 12 21:23:16 CST 2019
    CC:                              gcc -std=gnu99    
    CXX:                             g++    
    F77:                             gfortran   
    F90:                             gfortran   
    Configure options:                       '--disable-option-checking' '--prefix=NONE' '--cache-file=/dev/null' '--srcdir=.' 'CC=gcc -std=gnu99' 'CFLAGS= -O2' 'LDFLAGS=' 'LIBS=' 'CPPFLAGS= -I/root/mpich-3.3.2/src/mpl/include -I/root/mpich-3.3.2/src/mpl/include -I/root/mpich-3.3.2/src/openpa/src -I/root/mpich-3.3.2/src/openpa/src -D_REENTRANT -I/root/mpich-3.3.2/src/mpi/romio/include' 'MPLLIBNAME=mpl'
    Process Manager:                         pmi
    Launchers available:                     ssh rsh fork slurm ll lsf sge manual persist
    Topology libraries available:            hwloc
    Resource management kernels available:   user slurm ll lsf sge pbs cobalt
    Checkpointing libraries available:       
    Demux engines available:                 poll select

4) 测试mpich HPC集群
[root@node1 ~]# vim host.lst 
node2.1000cc.net
node3.1000cc.net

# 定义计算处理为6次,计算节点为machinefile所指定文件中包含的主机
[root@node1 ~]# mpiexec -n 6 -machinefile ~/host.lst ~/mpich-3.3.2/examples/cpi
no sessions
open terminal failed: not a terminal
no sessions
open terminal failed: not a terminal
Process 2 of 6 is on node2.1000cc.net
Process 4 of 6 is on node2.1000cc.net
Process 1 of 6 is on node3.1000cc.net
Process 5 of 6 is on node3.1000cc.net
Process 0 of 6 is on node2.1000cc.net
Process 3 of 6 is on node3.1000cc.net
pi is approximately 3.1415926544231243, Error is 0.0000000008333312
wall clock time = 0.020401