Whether it’s force of habit, or from actual need, users of HPC environments crave interactivity. Because the impact of unmanaged interactive sessions can be significant, there exists the potential for concern. Is it possible to meet users’ need for interactivity while managing the potential for impact? In this first part of a two-part series on managing interactive impact, attention focuses on the introduction of login nodes to a cluster managed by Bright Cluster Manager. The second part in this series will focus on use of workload managers as a complementary means for managing the interactive impact on the compute nodes of a cluster.
Okay, you've logged into a node, installed packages and have gotten it to just the perfect state. Now you want to save the running state of this node back a new Bright Cluster Manager software image. Good plan: it will save you a lot of time moving forward. This article shows how to do that using the Bright Cluster Management Shell (CMSH). Of course this can also be done using the CMGUI, but that's a different "how-to" article.