• open mpi官网地址：https://www.open-mpi.org/
• open mpi文档地址：https://docs.open-mpi.org/

1.下载

wget https://download.open-mpi.org/release/open-mpi/v4.1/openmpi-4.1.5.tar.gz
tar -xcvf openmpi-4.1.5.tar.gz

2.安装

cd openmpi-4.1.5
mkdir build
cd build

./configure --prefix=/usr/local/openmpi
make
make install

3.配置环境变量

MPI_HOME=/usr/local/openmpi
export PATH=${MPI_HOME}/bin:$PATH
export LD_LIBRARY_PATH=${MPI_HOME}/lib:$LD_LIBRARY_PATH
export MANPATH=${MPI_HOME}/share/man:$MANPATH

4.运行例子

cd openmpi-4.0.4/examples
make
mpirun -np 4 hello_c

输出：