Re: [Beowulf] Virtualization

2007-08-01 Thread Julien Leduc
andrew holway a écrit : > Would this mean that a users environment could never exceed the > resources of a single node? you can deploy as many nodes as you want on your cluster with your own environment, you just reserve the amount of nodes you want to use, deploy your environment (filling the need

Re: [Beowulf] IP address mapping for new cluster

2007-08-01 Thread Larry Stewart
Carsten Aulbert wrote: Hi, I clicked reply to say this seems like a lot of trouble to go through to make it easy to go from IP address to location and function, but it turns out that we do something very similar in our machines. A 972 node SC5832 uses a class B IP address like A.B.y.z/16

Re: [Beowulf] Mobo battery life in constantly on systems?

2007-08-01 Thread richard karhuse
Date: Fri, 27 Jul 2007 16:14:20 -0700 From: "David Mathog" <[EMAIL PROTECTED]> Subject: [Beowulf] Mobo battery life in constantly on systems? To: beowulf@beowulf.org The question: what is the expected motherboard battery lifetime in systems that are continuously on? While this may not apply

[Beowulf] IP address mapping for new cluster

2007-08-01 Thread Carsten Aulbert
Hi, currently we are in the planning stage for a new cluster project and would like to receive some comments about IP address mapping. The new cluster will probably consist of about 1000-2000 nodes distributed over about 60 racks. There will be compute nodes, two distinct classes of file ser

[Beowulf] How to analyze application cache coherency?

2007-08-01 Thread Christian Nygaard
How would you analyze application use of CPU cache on the AMD64, Intel Core platform? I have a set of different applications running in a cluster and a scheduler that distributes jobs on the cluster nodes lets call the applications A,B,C. What I would like to analyze is which mixes of application

Re: [Beowulf] Sidebar: Vista Rant

2007-08-01 Thread Kevin Hunter
At 7:16p -0400 on 19 Jul 2007, Chris Samuel wrote: >> Mind you, MySQL is perfectly capable of corrupting its own data >> without relying on rare hardware and power failures to blame for it. > > We have never found that, but should you come across it I would > suggest filing a bug report so it ca

Re: [Beowulf] Mobo battery life in constantly on systems?

2007-08-01 Thread Joseph Mack NA3T
On Fri, 27 Jul 2007, David Mathog wrote: The question: what is the expected motherboard battery lifetime in systems that are continuously on? the same as when they are off and about the same as the shelf life (I think the drain is uA). I expect the shelf life of a battery at elevated temps i

[Beowulf] Newbie questions on cluster technology to use

2007-08-01 Thread Kirill Lapshin
Hi all, This is my first post, please accept my apologies if questions are too simple. I would appreciate pointers to documentation, writeups, howtos etc. I did some research before posting here, but got lost in sheer amount of information and competing technologies available. We are plannin

Re: [Beowulf] threading building blocks

2007-08-01 Thread Jim Phillips
I just saw a talk that somewhat covered TBB. See slides at http://www.ncsa.uiuc.edu/UserInfo/Training/Workshops/Multicore/presentations/Intel_Threading_Tools.ppt It's closer to OpenMP than pthreads. One idiom I recall is to change your loop body to an operator, possibly adding locks or atomic

Re: [Beowulf] Virtualization

2007-08-01 Thread Julien Leduc
>> I'm interested in utilising the hardware to create something akin to >> the sun grid or the amazon elastic computing cloud whereby the >> resources available to the environment are automatically expanded and >> contracted. Maybe I have the wrong end of the stick on how these >> services operate

Re: [Beowulf] hardware question: building a cluster node/ student workstation

2007-08-01 Thread Ellis Wilson
(An aside: sorry Mark for just replying to you initially with this, forgot to hit Reply All...:) My pennies are invisible, as college students scrapping to stay in school don't have much to spare and aren't very good at convincing administration why they should throw five grand my directio

[Beowulf] nfs: server starsrv not responding, still trying

2007-08-01 Thread A Lenzo
Hello all, I am receiving this message upon shutting down a client node on my 3-machine network NFS/NIS cluster. Nothing else is loaded on these machines, but both NIS and NFS are working just fine. Only when I shut down one of the clients to I receive trouble: Unmounting pipe file systems OK U

[Beowulf] PathScale Compiler Lands at SiCortex

2007-08-01 Thread Douglas Eadline
The PathScale compiler (and team) has been purchased by SiCortex. SiCortex is MIPS based (as was the original PathScale compiler) and will continue to support x86_64. Here is a short story with links: http://www.clustermonkey.net//content/view/208/1/ -- Doug _