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Any hard numbers to support claim that cluster built in alike way is indeed faster against (OSCAR|Rocks|Warewulf) binary installation on the same hardware?
Building a High-Performance Cluster with Gentoo
Posted Apr 10, 2007 18:35 UTC (Tue) by ajross (subscriber, #4563)
That's not as much a joke as it sounds like. People who are truly interested in implementing high performance systems occupy themselves with writing and running benchmarks and other analysis tools. When they find issues, they document their findings and (hopefully) submit patches to the appropriate software maintainers.
People who just want to play with their compiler switches and talk about the need "to eke out every last bit of performance from hardware" without actually doing the hard work? They run gentoo.
Posted Apr 10, 2007 19:09 UTC (Tue) by asamardzic (guest, #27161)
Yeah, I supposed something alike :-)
Basically, I have same concerns over this that Steven expressed below - for serious HPC work, it is more important to choose carefully between all available implementations of low-level libraries (for example, regarding BLAS kernel, between ATLAS, or vendor implementation like Intel Math Kernel Library, or maybe Kazushige Goto's implementation), than to choose over one Linux distribution or another. And, again as Steven stated below, it is much more important, regarding overall efficiency, how the algorithm given is actually parallelized...
Posted Apr 12, 2007 13:18 UTC (Thu) by pbardet (guest, #22762)
It took me 2 years to setup a usable Gentoo box. Only 1/2 hour to break it and another 1/2h to switch to Ubuntu to get a similar system. Not better, not worse, but no more guesses.
Posted Apr 19, 2007 10:49 UTC (Thu) by TRauMa (guest, #16483)
Posted Apr 19, 2007 10:53 UTC (Thu) by TRauMa (guest, #16483)
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