openib无法支持

[oleotiger]

Background information

What version of Open MPI are you using? (e.g., v1.10.3, v2.1.0, git branch name and hash, etc.)

从仓库直接git pull，分支huawei

Describe how Open MPI was installed (e.g., from a source/distribution tarball, from a git clone, from an operating system distribution package, etc.)

git clone

Please describe the system on which you are running

• Operating system/version: CentOS Linux release 7.6.1810 (AltArch)
• Computer hardware: 1620 4P，Oceanstor 100D
• Network type: 业务走MLX CX5 ib，管理走1822

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Details of the problem

安装了hucx，然后安装hmpi。
安装hmpi时，执行configure，根据log打印，openib不编译。

configure:115308: checking if MCA component btl:openib can compile
configure:115310: result: no

发现需要加上--with-verbs。
./configure --prefix=/opt/libs/hmpi --with-verbs --with-platform=contrib/platform/mellanox/optimized --enable-mpi1-compatibility --with-ucx=/opt/libs/hucx 2>&1 | tee config.log
加上后，根据config log还是不编译openib。根据打印的log，是with-verbs识别为no。

如果取消其他多余的options，
``./configure --with-verbs `
根据log打印，会编译openib，with-verbs为yes。

查看了configure里面的内容，发现第一种情况无法识别--with-verbs，强制修改with-verbs为yes，打印的log可见

configure:115308: checking if MCA component btl:openib can compile
configure:115310: result: yes

make -j && make install后，ompi_info|grep btl发现无openib。

如何编译才可以使能openib？mlx网卡驱动是正常安装的。

[razor1991]

ucx支持ib，不需要走openib。