I have a question about Xeon and memory... It looks like I have one Gb per CPU, and not 4 Gb for the 4 CPU without restriction. Is this problem at the hardware level? What is the maximum amount of memory a CPU can use? I heard talk of a Tb memory machine, but it was part of a 1000 node cluster, so I am thinking OK 1 Gb per node. Can anyone clarify this for me? Cheers, Dan. On Mon, 29 Mar 2004, Philip MacMenamin wrote: > On Monday 29 March 2004 05:38 am, you wrote: > > hello all, > > > > i'm interested to the constructiong of a linux cluster of computer for > > bioinformatics purpose. but i dont have a cluu about the performans it > > should have. is there any one who can give any suggestion? > > > > in the hope of an answer > > > Its kind of a nebulous question. > > Basically... buy Xeon || AMD two way boxes. Be boring, look at Dell or > penguin computing or something. Dont bother with 64 bit. Think about that in > about 2 years time. It will irritate you in 2 months after you buy it, *i > promise*. > > Dont buy from some indy very cheap manufacturer, cause, if the nodes will > fail, you will be left waiting... or make them give you a decent guarantee. > Or a big box of bits. > > Look at the price of the chip : speed ratio. This graph will have an > inflection point, at which more money input gives diminishing returns > speed-wise. Buy at this inflection point. This changes all the time... of > course. There is no point in buying the *best* out there right this second. > Just buy a little behind it, and buy an extra box or two. > > Find out what you want to run. > Buy as enough memory so it doesn't thrash your disks. (Or just fill it with > memory). > > Spending about 2 grand (USD) on them a piece (I dont know what that is in > Lira) should buy you something decent operating at 3 gigs, with a couple of > gigs ram. > > Then have a look at > http://bioinformatics.org/biobrew/ > www.rocksclusters.org/ > > Sorry if this is very uninspiring/boring advice... its just, you want to keep > everything as simple as you can. There will be tricky bits no matter how > simple you make everything. > Good luck. > Philip. > _______________________________________________ > Bioclusters maillist - Bioclusters@bioinformatics.org > https://bioinformatics.org/mailman/listinfo/bioclusters >