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Building a High-Performance Cluster with GentooBuilding a High-Performance Cluster with GentooPosted Apr 12, 2007 10:36 UTC (Thu) by jschrod (subscriber, #1646)In reply to: Building a High-Performance Cluster with Gentoo by gdt Parent article: Building a High-Performance Cluster with Gentoo
Probably they are afraid that the (most often flaky) interconnect driver doesn't work any more after the upgrade.
As long as you're using Gbit Ethernet for interconnects, upgrades are easy. If you're using Myrinet or Infiniband, that's a whole other story.
(My experience is from HPC work for automotive and aerospace companies.)
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