Building a High-Performance Cluster with Gentoo
Posted Apr 11, 2007 4:09 UTC (Wed) by gdt
Parent article: Building a High-Performance Cluster with Gentoo
The main advantage of using Gentoo seems to be Portage. The incremental upgrade approach of Portage might well be worth the effort.
The "big upgrade" approach of Red Hat doesn't seem to cut it. My experience  with pushing around Large Hadron Collider datasets is that there's still a lot of clusters running RH9, with its kernel's lack of ability to push big fat network pipes to capacity. Whenever I ask a HPC administator to upgrade to a recent kernel I get a look of horror.
So if you argue that system libraries and kernels don't matter to HPC performance, then why are HPC administrators so reluctant to change something so irrelevant? Perhaps it is because the packaging solution they use makes the risk of a change too great. It would well be worth a look at Gentoo to see if its packaging system lowers the risk of changes.
 a network engineer at a academic and research network with responsibility for end-to-end performance.
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