Additional Software

cw-install installs and updates the basic ICE ClusterWare ™ software. Additional software packages are available in the ClusterWare repository.

cw-install manipulates the /etc/yum.repos.d/clusterware.repo file to automatically enable the cw repos when the tool executes and disable the repos when finished. This is done to avoid inadvertent updating of ClusterWare packages when executing a simple yum update.

Note

If the cluster administrator has created multiple /etc/yum.repos.d/*.repo files that specify repos containing ClusterWare RPMs, then this protection against inadvertent updating is performed only for /etc/yum.repos.d/clusterware.repo, not for those additional repo files.

Accordingly, the --enablerepo=cw* --enablerepo=scyld* argument is required when using yum for listing, installing, and updating these optional ClusterWare packages on a head node. For example, these optional installable software packages can be viewed using yum list --enablerepo=cw* --enablerepo=scyld* | grep scyld. After installation, any available updates can be viewed using yum check-update --enablerepo=cw* --enablerepo=scyld* | grep scyld.

Specific install and configuration instructions for various of these packages, e.g., job managers and OpenMPI middleware, are detailed in this chapter.