Re: [Beowulf] Fwd: removing X

2009-02-08 Thread Tim Cutts
On 8 Feb 2009, at 10:49 pm, Greg Lindahl wrote: On Wed, Feb 04, 2009 at 08:00:59PM +0100, Francesco Pietra wrote: Failure of one (or two) slot(s) of kingston 400 DDR1 ECC on the multisocket workstation prevents running startx, presumably by corrupting files related to X. Well, another poss

Re: [Beowulf] Fwd: removing X

2009-02-08 Thread Carsten Aulbert
Hi, Greg Lindahl schrieb: > Debian packages must have some way of verifying that the files on disk > match what's in the package. You could use that to detect actual disk > corruption. aptitude install deubsums Description: verification of installed package files against MD5 checksums debsums c

[Beowulf] updated GPU-HMMer/mpiHMMer bits

2009-02-08 Thread Joe Landman
This time compared to a loaner AMD shanghai 2.3 GHz (same one I did the rzf tests on a few weeks ago). From the mpihmmer mailing list: --- A new release of GPU-HMMER is available at www.mpihmmer.org. The most notable change in the new code is support for multi-GPU systems. We have tested the

Re: [Beowulf] Need someone to recommend me some books

2009-02-08 Thread Peter St. John
Carlos, I'd start with the Wiki article and it's links, http://en.wikipedia.org/wiki/Beowulf_(computing)#External_links and Prof "RGB" Brown's book, available wihin his webpages at http://www.phy.duke.edu/~rgb/ I don't know a comprehensive recent bibliography...guys? Peter On 2/3/09, Carlos To

[Beowulf] Connecting two 24-port IB edge switches to core switch: extra switch hop overhead

2009-02-08 Thread Ivan Oleynik
I am purchasing 36-node cluster that will be integrated to already existing system. I am exploring the possibility to use two 24 4X port IB edge switches in core/leaf design that have maximum capability of 960Gb (DDR)/480Gb (SDR). They would be connected to the main Qlogic Silverstorm switch. I wo

Re: [Beowulf] Fwd: removing X

2009-02-08 Thread Greg Lindahl
On Wed, Feb 04, 2009 at 08:00:59PM +0100, Francesco Pietra wrote: > Failure of one (or two) slot(s) of kingston 400 DDR1 ECC on the > multisocket workstation prevents running startx, presumably by > corrupting files related to X. Well, another possiblity is that X is juts tripping over a real ha

Re: Re: [Beowulf] IBM Sequoia

2009-02-08 Thread Igor Kozin
2009/2/4 Eloi Gaudry > Kilian CAVALOTTI wrote: > >> Hi John, >> >> On Tuesday 03 February 2009 18:25:04 John Hearns wrote: >> >> >>> http://www.theregister.co.uk/2009/02/03/llnl_buys_ibm_supers/ >>> >>> I make this 400 cores per 1U rack unit. How is the counting being done >>> here? >>> >>> >> >>

[Beowulf] Re: What is the right lubricant for computer sliding rails?

2009-02-08 Thread David Mathog
"Douglas Eadline" wrote > Indeed why use rails at all. Lack of access to the side mount screws when installed. A certain rack used to be located in a room such that there was access (albeit with minor contortions by the operator) to all screws and connections. Consequently it was ordered with

Re: [Beowulf] Fwd: removing X

2009-02-08 Thread Tim Cutts
On 8 Feb 2009, at 6:41 pm, Reuti wrote: Am 04.02.2009 um 20:00 schrieb Francesco Pietra: How to purge remove cleanly a damaged X server from a working station running on debian lenny amd64? Failure of one (or two) slot(s) of kingston 400 DDR1 ECC on the multisocket workstation prevents runn

Re: [Beowulf] Fwd: removing X

2009-02-08 Thread Reuti
Am 04.02.2009 um 20:00 schrieb Francesco Pietra: How to purge remove cleanly a damaged X server from a working station running on debian lenny amd64? Failure of one (or two) slot(s) of kingston 400 DDR1 ECC on the multisocket workstation prevents running startx, presumably by corrupting files

Re: [Beowulf] Fwd: removing X

2009-02-08 Thread Carsten Aulbert
Hi Francesco Pietra schrieb: > How to purge remove cleanly a damaged X server from a working station > running on debian lenny amd64? > aptitude purge xserver-xorg should do the trick (it will give you a list of packages which you might want to purge as well). HTH Carsten

Re: [Beowulf] Re: What is the right lubricant for computer rack sliding rails?

2009-02-08 Thread Daniel Kidger
Actually I had never heard of Astroglide until yesterday - I guess it is only sold in the USA. I saw it mentioned on Wikipedia when I searched for 'lubricant' (!) But you have got to admit, if NASA invented something for easing sticking rails in clusters, Astroglide would be a great product name. >

Re: [Beowulf] What is the right lubricant for computer rack sliding rails?

2009-02-08 Thread Ethan VanMatre
Might as well throw in my choice - McLube Sailkote - I use it on the Sail track on my sailboat "It dries quickly to a hard, smooth, ultra-slick, hydrophobic dry coating that bonds tenaciously to almost any surface. And because Sailkote is a dry lubricant, it will not attract dirt or cont

[Beowulf] Fwd: removing X

2009-02-08 Thread Francesco Pietra
How to purge remove cleanly a damaged X server from a working station running on debian lenny amd64? Failure of one (or two) slot(s) of kingston 400 DDR1 ECC on the multisocket workstation prevents running startx, presumably by corrupting files related to X. My work around did not resolve the iss

Re: Re: [Beowulf] IBM Sequoia

2009-02-08 Thread Eloi Gaudry
Kilian CAVALOTTI wrote: Hi John, On Tuesday 03 February 2009 18:25:04 John Hearns wrote: http://www.theregister.co.uk/2009/02/03/llnl_buys_ibm_supers/ I make this 400 cores per 1U rack unit. How is the counting being done here? Even for the intermediate "development" system, Dawn, th

Re: [Beowulf] What is the right lubricant for computer rack sliding rails?

2009-02-08 Thread Daniel Kidger
> >> Dear Beowulfers > >> > >> A mundane question: > >> > >> What is the right lubricant for computer rack sliding > rails? > >> Silicone, paraffin, graphite, WD-40, machine oil, grease, > other? To avoid such lock-ups, we use Crisco

Re: [Beowulf] What is the right lubricant for computer rack sliding rails?

2009-02-08 Thread andrew holway
I wonder what BOFH would do? On Thu, Feb 5, 2009 at 4:49 PM, Gus Correa wrote: > Dear Beowulfers > > A mundane question: > > What is the right lubricant for computer rack sliding rails? > Silicone, paraffin, graphite, WD-40, machine oil, grease, other? > > Thank you, > Gus Correa > --

[Beowulf] Need someone to recommend me some books

2009-02-08 Thread Carlos Tomasio
Good afternoon. Please I need someone to recommend me good books on Beowulf. I am trying to build a project on clusters and I would like to read a lot and get more knowlegde on this. Regards Carlos Tomasio ___ Beowulf mailing list, Beowulf@beowulf.org