标签：str cal down root https 传递 some 环境变量 end
OpenMPI（open Message Passing Interface），OpenMPI是MPI的一种实现，是信息传递接口库项目。
1、安装OpenMPI
# wget https://download.open-mpi.org/release/open-mpi/v4.0/openmpi-4.0.4.tar.bz2 # tar jxvf openmpi-4.0.4.tar.bz2 # cd openmpi-4.0.4/ # ./configure --prefix=/usr/local/openmpi # make # make install
2、添加环境变量
# export PATH="/usr/local/openmpi/bin:$PATH" # export LD_LIBRARY_PATH="/usr/local/openmpi/lib/:$LD_LIBRARY_PATH"
或者写 /etc/profile 环境变量文件
或者使用Moudle管理环境变量
# cat /etc/modulefiles/mpi/openmpi-4.04 #%Module 1.0 ## ## OpenMPI module for use with ‘environment-modules‘ package: module-whatis "sets up access to openmpi-4.04" #prereq openmpi-4.04 conflict mpi setenv SOMEVERION 4.04 append-path PATH /usr/local/openmpi/bin append-path LD_LIBRARY_PATH /usr/local/openmpi/lib
3、测试mpirun
# cd openmpi-4.0.4/examples # mpicc hello_c.c -o hello # mpirun --allow-run-as-root hello Hello, world, I am 0 of 2, (Open MPI v4.0.4, package: Open MPI root@m1 Distribution, ident: 4.0.4, repo rev: v4.0.4, Jun 10, 2020, 102) Hello, world, I am 1 of 2, (Open MPI v4.0.4, package: Open MPI root@m1 Distribution, ident: 4.0.4, repo rev: v4.0.4, Jun 10, 2020, 102)
多节点运行
多节点尽量使用NFS共享存储，不然所有节点都需要安装OpenMPI；
# for i in `seq 1 3` ; do echo "node$i" >> hostlist ; done # /usr/local/openmpi/bin/mpirun --allow-run-as-root -np 6 --hostfile hostlist /openmpi-4.0.4/examples/hello Hello, world, I am 0 of 6, (Open MPI v4.0.4, package: Open MPI root@m1 Distribution, ident: 4.0.4, repo rev: v4.0.4, Jun 10, 2020, 102) Hello, world, I am 1 of 6, (Open MPI v4.0.4, package: Open MPI root@m1 Distribution, ident: 4.0.4, repo rev: v4.0.4, Jun 10, 2020, 102) Hello, world, I am 4 of 6, (Open MPI v4.0.4, package: Open MPI root@m1 Distribution, ident: 4.0.4, repo rev: v4.0.4, Jun 10, 2020, 102) Hello, world, I am 5 of 6, (Open MPI v4.0.4, package: Open MPI root@m1 Distribution, ident: 4.0.4, repo rev: v4.0.4, Jun 10, 2020, 102) Hello, world, I am 2 of 6, (Open MPI v4.0.4, package: Open MPI root@m1 Distribution, ident: 4.0.4, repo rev: v4.0.4, Jun 10, 2020, 102) Hello, world, I am 3 of 6, (Open MPI v4.0.4, package: Open MPI root@m1 Distribution, ident: 4.0.4, repo rev: v4.0.4, Jun 10, 2020, 102)
标签：str cal down root https 传递 some 环境变量 end
原文地址：https://www.cnblogs.com/liu-shaobo/p/13296701.html
