Hello, list - We are at a point where we'd like to explore a tiny cluster of two systems to speed up execution of the FVCOM circulation model. We already have a two-year-old system with two 14-core CPUs (Xeon E-2680), and I have budget to purchase another system at this point, which we plan to directly connect via Infiniband. Should I buy an exact match, or go with the most my budget can handle (for example 2xXeon Gold 1630, 16-cores) under the assumption that the two-system cluster will operate at about the same speed *and* I can reap the benefits of the added performance when running smaller simulations independently?
Our list owner already provided some thoughts: > I've always preferred homgenous clusters, but what you say is, > I think, quite plausible. The issue you will have though is > ensuring that the application is built for the earliest of the > architectures so you don't end up using instructions for a newer > CPU on the older one (which would result in illegal instruction > crashes). > > But there may be other gotchas that others think of! Thank you ... Tad _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
