在Centos7安装Openfoam7，采用mpich4.1.2并行计算_centos7 openfoam安装-优快云博客

本文链接：https://blog.youkuaiyun.com/YJaneBachelor/article/details/148174363

bOpenFOAM11安装日志｜配置MPICH为MPI_openfoam11的安装-优快云博客文章浏览阅读1k次，点赞5次，收藏14次。安装OpenFOAM-11，但未成功，这应该是MPI环境设置与教程不一样的问题，教程中用的是OPENMPI，我系统里的是MPICH。假如错误相同应该可以用以下汇总的设置来解决。修改./OpenFOAM/OpenFOAM-11/etc/bashrc 文件；修改./OpenFOAM/OpenFOAM-11/etc/config.sh/mpi 文件；设置环境变量；重新执行安装指令；blockMesh验证。_openfoam11的安装https://blog.youkuaiyun.com/yahhera7901/article/details/145324698主要参考上面博主的方法，感谢，防丢。

openfoam7下载地址：Download v7 | Source Pack | OpenFOAM

！！！前提：mpich已经安装成功，并且成功执行 mpich --version

1. 下载OpenFOAM-dev和ThirdParty-dev

2. 直接执行 source ..../OpenFOAM-dev/etc/bashrc，出现错误：

gcc: error: unrecognized command line option '--showme:link'

解决办法，修改.../OpenFOAM-dev/etc/bashrc中对应行为export WM_MPLIB=MPICH

见第3步。

执行：./Allwmake -j10 出错（-j10指使用10个核）

Compiling enabled on 10 cores
Allwmake /home/data/OpenFOAM/OpenFOAM12/OpenFOAM-dev
make: Nothing to be done for 'all'.

========================================
Start ThirdParty Allwmake
========================================

========================================
Build MPI libraries if required
+ cd /home/data/OpenFOAM/OpenFOAM12/ThirdParty-dev/mpich2-1.1.1p1
/home/data/OpenFOAM/OpenFOAM12/ThirdParty-dev/Allwmake: line 119: cd: /home/data/OpenFOAM/OpenFOAM12/ThirdParty-dev/mpich2-1.1.1p1: No such file or directory
+ exit 1

解决办法，修改.../OpenFOAM-dev/etc/config.sh/mpi

见第4步。

3. 修改.../OpenFOAM-dev/etc/bashrc

如下：export WM_MPLIB=MPICH （默认是export WM_MPLIB=SYSTEMOPENMPI）

4. 修改.../OpenFOAM-dev/etc/config.sh/mpi

找到对应MPICH设置的FOAM_MPI，如下：

MPICH)
export FOAM_MPI=mpich2-1.1.1p1
export MPI_HOME=$WM_THIRD_PARTY_DIR/$FOAM_MPI
export MPI_ARCH_PATH=$WM_THIRD_PARTY_DIR/platforms/$WM_ARCH$WM_COMPILER/$FOAM_MPI

修改为：

export FOAM_MPI=mpich
export MPI_HOME=/usr/local/mpich4.1.2/
export MPI_ARCH_PATH=/usr/local/mpich4.1.2/

其中“/usr/local/mpich4.1.2/”为自己电脑安装mpich的路径，需要自行查找。