Greetings! "Matthias H. Hennig" <[EMAIL PROTECTED]> writes:
> Hi, > > this discussion is interesting for me, as we're just about to update our > cluster. So far, we're using the messy setup Camm just described - and > this is no longer working reliably, as it's still based on an heavily > upgraded woody (we need gcc-3 among other things). > > For that reason we have decided to go for sarge and want to get rid of > the problem keeping the nfsroots (/etc, /var and all the rest) of the > clients up to date after every upgrade. > > As I understand, FAI can handle this - what is your experience? And how > does it work precisely, simply by chroot or some other method? > The problem we're facing is that most nodes are pc's with different > hardware configuration, so almost each node needs a custom kernel as > well. Is this supported well in FAI? > Am interested in this too. > Btw. a nice way to increase the size of your cluster is simply to ask > the technicians for old hardware (which means everything >600MHz) that > is no longer used. Usually, these computers are from student labs and > would otherwise go to charity (which is of course fine as well...). > Am particularly interested how you make use of a non-uniform cluster. Most of the applications (MPI) we've developed will run as fast as the slowest node. Take care, > Matthias > > > On Tue, 2004-11-16 at 15:13, Camm Maguire wrote: > > Thank you for your work on this! Looks quite impressive -- would like > > to try it one day. Fortunately or not, due to Debian's install-once > > ease of maintenance, we're still running the same many-times > > apt-get-upgraded local disk installation installed on our cluster far > > before any of these nicer tools became available. What a nice > > 'problem' to have with Debian! > > > > Take care, > > > > Thomas Lange <[EMAIL PROTECTED]> writes: > > > > > Hi, > > > > > > another huge and fast cluster was installed using FAI. > > > http://www.informatik.uni-koeln.de/fai/ > > > > > > The HPC2N Opteron cluster named sarek (after Sarek National Park) has > > > a total of 384 processors and 1.54 Tbyte of memory: > > > > > > * 190 HP DL145 nodes, with dual AMD Opteron 248 (2.2GHz) > > > * 2 HP DL585, with dual AMD Opteron 248 (2.2GHz) > > > * 8 GB memory per node > > > * Myrinet 2000 high speed interconnect > > > > > > It's running Linux 2.6.x and is using the Debian Pure64 port. This > > > cluster was listed at rank 168 on the top500.org list of june 2004 and > > > is now at rank 220 (11/2004). It's homepage is > > > > > > http://www.hpc2n.umu.se/resources/sarek.html > > > > > > Thanks to Bjorn Torkelsson who pointed me to this nice FAI example. > > > > > > -- > > > regards Thomas > > > > > > > > > -- > > > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > > > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > > > > > > > > > > > > > > > > -- > > Camm Maguire [EMAIL > > PROTECTED] > > ========================================================================== > > "The earth is but one country, and mankind its citizens." -- Baha'u'llah > > > > > -- > To UNSUBSCRIBE, email to [EMAIL PROTECTED] > with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED] > > > > -- Camm Maguire [EMAIL PROTECTED] ========================================================================== "The earth is but one country, and mankind its citizens." -- Baha'u'llah -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
