Gentoo Archives: gentoo-cluster

From: Nick Anderson <nick@××××××××.net>
To: gentoo-cluster@l.g.o
Subject: Re: [gentoo-cluster] examples of (large) Gentoo clusters
Date: Sat, 02 Dec 2006 14:41:07
Message-Id: 200612020840.16353.nick@anders0n.net
In Reply to: [gentoo-cluster] examples of (large) Gentoo clusters by Bryan Green
1 Unfortunately we haven't done a gentoo cluster, though with portage
2 maintenance would be easy. I did want to comment on your processor choice. If
3 you choose quad core your only option currently is Intel clovertown. These
4 machines are power hungry. I would reccomend waiting for the opteron quad
5 core chips that will be comming out in 07. If your going dual core I would
6 reccomend opterons. They don't require the fully buffered dimms which from
7 our testing seem to draw about 15W per dimm. The other thing to consider is
8 the characteristics of your code, what we have seen from the Intel cpus is
9 jobs run quite well if they are serial jobs, however when running parallel
10 jobs the opterons still win out.
11
12 Just some food for thought ....
13
14 On Friday 01 December 2006 17:16, Bryan Green wrote:
15 > Hello all,
16 >
17 > I am looking for something of a survey of examples of Gentoo-driven
18 > clusters out there. If such a survey has been done, perhaps someone point
19 > me to it. But I would like to hear from others on the list about their
20 > clusters.
21 >
22 > I am in the process of advocating for using Gentoo on a new cluster that we
23 > will be building. The cluster will be a "hyperwall", meaning that each
24 > node will have graphics, forming a grid of displays for multi-parameter,
25 > multi-dimensional scientific visualization. There will also be several
26 > disk servers which will run Suse in order to get Lustre support (Lustre
27 > support on the client side will be OS-neutral when the current beta is
28 > officially released). In addition to graphics, the nodes will also be used
29 > for compute jobs (scientific), and may serve as a testbed for a production
30 > scientific computing environment.
31 >
32 > In the process of making my case, I've been asked what other examples there
33 > are of large Gentoo clusters. This cluster will be 128 nodes (dual socket,
34 > dual or quad core). Of particular interest are production and/or
35 > scientific environments - not so much database clusters, though all
36 > examples are of interest. Use of MPI is particularly relevant. Graphics
37 > clusters are also of interest of course.
38 >
39 > I'd be grateful for any feedback I get from others on the list about the
40 > clusters they maintain or use, and perhaps some comments about the efficacy
41 > of Gentoo in an environment where stability is very important, and how
42 > system administration compares to administration of a Suse or Redhat
43 > cluster.
44 >
45 > Thanks,
46 > -bryan
47 --
48 gentoo-cluster@g.o mailing list