OpenMPI 4.0的编译安装

OpenMPI 4.0的编译安装

安装步骤：

下载源码包并解压

wget https://download.open-mpi.org/release/open-mpi/v4.0/openmpi-4.0.0.tar.bz2

tar -xvf openmpi-4.0.0.tar.bz2

根据OpenMPI 4.0的configur帮助说明，集群支持UCX，需要编译UCX

编译安装UCX

wget https://github.com/openucx/ucx/releases/download/v1.6.0/ucx-1.6.0.tar.gz

tar xvf ucx-1.6.0.tar.gz

cd ucx-1.6.0

./contrib/configure-release --prefix=/data/ucx1.6

make && make install

编译安装

cd openmpi-4.0.0

./configure --prefix=/data/openmpi4.0 CC=gcc FC=gfortran --enable-openib-control-hdr-padding --with-ucx=/data/ucx1.6 --with-ucx-libdir=/data/ucx1.6/lib

make

make install

配置环境变量

vi .bashrc

添加以下语句：

#OPENMPI4.0

export PATH=/data/openmpi4.0/bin:$PATH

export INCLUDE=/data/openmpi4.0/include:$INCLUDE

export LD_LIBRARY_PATH=/data/openmpi4.0/lib:$LD_LIBRARY_PATH

export MANPATH=$MANPATH:/data/openmpi4.0/share/man

保存退出，并source .bashrc

查看是否导入成功

which mpicc

测试

在源码解压目录/home/baolu/openmpi-4.0.0/examples下

mpicc hello_c.c -o hello.exe

生成可执行文件hello.exe

或者

make

生成可执行文件hello_c

启动并行计算

mpirun --mca btl self -np 12 hello.exe

说明测试正常结束，编译安装成功了。