Re: [Beowulf] Consumer vs. Enterprise Hard Drives in Clusters

2009-01-29 Thread Erwan Velu
Bill Broadley wrote: > I found my actual results from a WD consumer 320GB drive (single platter) with > the drive on the bench vs inside a 1U node: > > http://cse.ucdavis.edu/bill/wd320-2MB-points.png > > http://cse.ucdavis.edu/bill/wd320-2MB-points-vibration.png > > Once the WD320 (a consumer driv

Re: [Beowulf] copying big files

2008-08-14 Thread Erwan Velu
same as one needs for copying the file between two nodes plus 0.1s. One needs basically a daemon which handles copying requests and establishes the connection to next node in the chain. Has somebody written such a tool? Sounds like you are looking for http://taktuk.gforge.inria.fr/ -- Erw

Re: [Beowulf] How do people keep track of computers in your cluster(s)?

2007-10-22 Thread Erwan Velu
Carsten Aulbert a écrit : Hi all, we are currently looking into the problem, how to keep track of computers which we are going to buy. On the one hand there are the standard tools to monitor a running cluster like ganglia, nagios, zenoss, ... but these are - to my understanding - just for monito

[Beowulf] Archives looks like broken

2007-05-03 Thread Erwan Velu
Hey folks, I just realize the archive website looks like broken : http://www.scyld.com/pipermail/beowulf/ Can anyone fix it ? Thanks, Erwan, ___ Beowulf mailing list, Beowulf@beowulf.org To change your subscription (digest mode or unsubscribe) visit

Re: [Beowulf] non-proprietary IPMI card?

2006-11-29 Thread Erwan Velu
Bill Broadley wrote: I've heard of folks successfully getting the tyan card to work: http://www.tyan.com/products/html/m3291.html Anyone else using these cards? [...] I'm using some of theses. Does anyone know if IPMI can "share" a GigE port? Or does it usually require a dedicated port o

Re: [Beowulf] non-proprietary IPMI card?

2006-11-29 Thread Erwan Velu
Tony Ladd wrote: The Broadcom 5721 NIC comes with IPMI capability. We use Dell PE850's which are equipped with dual onboard Broadcom 5721J NICS. One of the NICS has IPMI built in. You set up the IPMI in the BIOS-IP address, username, password-and then you can access over the same CAT5 cable. The

Re: [Beowulf] GPFS on Linux (x86)

2006-09-14 Thread Erwan Velu
Brent Franks wrote: Hello, We have been researching GPFS from IBM and are very interested in what looks like promising performance and scalability. Does anyone use GPFS, we are looking at running it in a distributed mode, rather than using one central SAN. Some months about, IBM annonced the o

Re: [Beowulf] Memory latency (was woodcrest)

2006-08-19 Thread Erwan Velu
Bill Broadley wrote: For those interested in latency. I wrote a pthread based latency tester that will access N integers randomly per thread. Each member of the array is accessed once. All the numbers below are for N=1,000,000 integers. Every integer is loaded exactly once, randomly. [...