chris dagdigian wrote: > Jeff Layton wrote: > > ><snip> > > > >First, I take issue with the idea that because I'm interested in > >pure speed, that I don't take the time or care to develop or find or > >buy the tools I need to admin the clusters effectively and efficiently. > >I probably do the same things you do, but instead of coming up with > >tools that ease my admin burden, I come up with tools that ease > >my admin BUT don't compromise speed. I don't now if people > >document what they do in making these tools, but if you start searching > >the web, you'll find them (at least I did). > > > ><snip> > > > Hey Jeff-- > > Good to see a critical mass building up on the list. I didn't mean to > insult the speed demons out there- it just that I've seen lots of groups > (particulary biologists in academic settings) do really hair-raising > stuff like wire capacitors into their motherboards to they can be > overclocked safely. I have no problem doing that stuff at home but I'd > be worried if that hardware had to live in a datacenter and be cared for > by the IT group. This reflects my bias of course as someone who came up > on the industry/biotech side of the fence. No problem. I sometimes get a little sensitive :) I think the next "wave" of clusters is in the Bio-computing field. We're already seeing it and it looks like it's picking up momentum. The interesting thing to me in the Bio-cluster field is that the clusters are really compute farms but the IO requirements are potentially very large. This shows my lack of knowledge of the field. I think it would be just great if someone could present a non-Bio perspective of how Bio apps work and where potential bottlenecks are. I would really LOVE to see something like that! I also come from the industry side where we carefully consider all of the issues you mentioned. I've never heard of anybody mod-ing the motherboard like that! That's scary for "production" servers. When Beowulfs first made an appearance a few years ago, there were many small companies offering clusters with over-clocked CPUs. Not a good thing to put your work (and possibly other people's lives) in the hands of a CPU that's out of spec. > > > I will say though that I still believe that people put far too much > emphasis on hardware price/performance without looking at releated stuff > like physical footprint, electrical consumption, heat output & > management overhead. Those dual-AMD systems are really fast but if you > don't realize that they come with 550-watt power supplies your > cooling/HVAC people people are going to be pretty upset. Oh yeah. Watch electrical, cooling (cooling is just not enough, you also need airflow), weight can be an issue, dimensions (imagine a doorway that's too low - it's happened), and lockable racks (parts have a tendency to disappear). There are lots of things that need to be consider. Thanks! Jeff > > > -Chris > > _______________________________________________ > Bioclusters maillist - Bioclusters@bioinformatics.org > http://bioinformatics.org/mailman/listinfo/bioclusters