Re: [Beowulf] Optimal BIOS settings for Tyan K8SRE

2006-09-03 Thread Mark Hahn
270s) which are being used primarily for Oceanographic modelling (MPICH2 running on Debian/Linux 2.6 kernel). on gigabit? I had to make some tweaks to make all 4GB of RAM visible to the OS. how much was missing, and was it just graphics aperture-related? HT-LDT FrequencyAut

Re: [Beowulf] Optimal BIOS settings for Tyan K8SRE

2006-09-03 Thread Bruce Allen
Stephen, Search the archives of this list to find some advice from me and others about setting the ECC features. Cheers, Bruce On Thu, 31 Aug 2006, stephen mulcahy wrote: Hi, I'm maintaining a 20-node cluster of Tyan K8SREs (4GB RAM, dual Opteron 270s) which are being used primari

Re: [Beowulf] latency and bandwidth micro benchmarks

2006-09-03 Thread Lawrence Stewart
On Aug 29, 2006, at 1:47 AM, Bill Broadley wrote: On Tue, Aug 15, 2006 at 09:02:12AM -0400, Lawrence Stewart wrote AFAIK, the canonical latency benchmark is lat_mem_rd, which is part of the lmbench suite. Really? Seems like more of a prefetch test then a latency benchmark. A fixed stride

[Beowulf] cluster softwares supporting parallel CFD computing

2006-09-03 Thread amjad ali
Hello, Hi All. We are developing Beowulf Cluster for the first time at our university department. We will perform numerical simulations in CFD on the cluster. We have chosen that each node (master and compute) of the cluster will be consisting of 2 AMD Dual Core Opteron Processors on Tyan Thunder

[Beowulf] Regarding Performance

2006-09-03 Thread Renuka Prasad
Hi All,   we are using Loadleveller 3.1 running on AIX 5.1.The users are getting more performance, when they execute their parallel jobs using poe.But, not the same(poor performance) when they submit using general class defined in the cluster.I'm not getting, whether problem with nodes or n/w 

[Beowulf] Optimal BIOS settings for Tyan K8SRE

2006-09-03 Thread stephen mulcahy
Hi, I'm maintaining a 20-node cluster of Tyan K8SREs (4GB RAM, dual Opteron 270s) which are being used primarily for Oceanographic modelling (MPICH2 running on Debian/Linux 2.6 kernel). I had to make some tweaks to make all 4GB of RAM visible to the OS. I'm now at the point where I'm considering

Re: [Beowulf] SPEC CPU 2006 released

2006-09-03 Thread Mike Davis
Vincent, I think that we have two different audiences in this discussion and you are addressing one of them. The programming side of spec and hw benchmarks is interesting. To me its interesting theoretically. What I care about is how the majority of my applications perform on a given set of h

Re: [Beowulf] SPEC CPU 2006 released

2006-09-03 Thread Vincent Diepeveen
- Original Message - From: "Robert G. Brown" <[EMAIL PROTECTED]> To: "Vincent Diepeveen" <[EMAIL PROTECTED]> Cc: "Geoff Jacobs" <[EMAIL PROTECTED]>; Sent: Saturday, August 26, 2006 1:43 PM Subject: Re: [Beowulf] SPEC CPU 2006 released On Sat, 26 Aug 2006, Vincent Diepeveen wrote: F

Re: [Beowulf] SPEC CPU 2006 released

2006-09-03 Thread Ed Hill
On Sun, 03 Sep 2006 16:08:05 +0200 Toon Moene <[EMAIL PROTECTED]> wrote: > Robert G. Brown wrote: > > > On Fri, 25 Aug 2006, Geoff Jacobs wrote: > > > >> I should have been more specific and said that I do not believe > >> any integrated benchmarks packaged and shipped by SPEC are in > >> any WS

Re: [Beowulf] SPEC CPU 2006 released

2006-09-03 Thread Toon Moene
Greg Lindahl wrote: No surprises in the relative compiler rankings, and it seems that nobody has done an "art" to the new suite, yet. Nine out of seventeen (in the FP suite) done in Fortran. I'm poised to do an INT benchmark in Fortran, just because ... -- Toon Moene - e-mail: [EMAIL PROTECT

Re: [Beowulf] SPEC CPU 2006 released

2006-09-03 Thread Toon Moene
Robert G. Brown wrote: On Fri, 25 Aug 2006, Geoff Jacobs wrote: I should have been more specific and said that I do not believe any integrated benchmarks packaged and shipped by SPEC are in any WSOF Open Source or Free Software. Apparently some software included in SPECCpu 2006 is in fact lice