On Mon, Oct 12, 2009 at 11:50:10AM -0700, Greg Kurtzer wrote:
> The underlying components that make up a distribution are in-fact an
> important component to an HPC system in its entirety. There are many
> reasons for this, but I will focus on just a few that I hope don't
> strike too much of a re
Rahul Nabar wrote:
> [I apologize if this might be somewhat offtopic for HPC;it could be
> termed a generic Linux logon problem but I couldn't find many leads in
> my typical linux.misc group.]
How to secure a valuable network resource like a cluster sounds on topic to me.
> I've used RSA type ca
>
> Gerasimatos, Dimitrios V (343K) wrote:
> > According to SPECfp2006, the X5560 should blow the doors off of the
> E5430.
> > The X5560 scores 36 while the E5430 scores about 18.
> >
> >
> > However, our own benchmarking using nbench, unixbench, and a home-
> grown
> > utility (twobod) all show
On Mon, Oct 12, 2009 at 01:08:47PM -0700, Gerasimatos, Dimitrios V (343K) wrote:
>
>
> According to SPECfp2006, the X5560 should blow the doors off of the E5430.
> The X5560 scores 36 while the E5430 scores about 18.
>
>
> However, our own benchmarking using nbench, unixbench, and a home-grown
Gerasimatos, Dimitrios V (343K) wrote:
According to SPECfp2006, the X5560 should blow the doors off of the E5430.
The X5560 scores 36 while the E5430 scores about 18.
However, our own benchmarking using nbench, unixbench, and a home-grown
utility (twobod) all show that any differences are attri
On Mon, Oct 12, 2009 at 2:35 PM, Leif Nixon wrote:
> Rahul Nabar writes:
>
> That's the point.
>
>> Now there might be some who may say that's the point but I just think
>> it was a pain.
>
> Sure it's a pain. Hopefully there had been a proper risk analysis
> carried out that indicated that it st
>> We have more then 400 machines. Every month there is one machine that we
>> can
>> not reboot using IPMI or the SOL is not working.
>
> we have something like 2500 nodes, mostly HP dl145g2's, and have a
> BMC-wedge
> probably 6-12 times/year. can I ask what brand/model has such flakey
> IPMI?
On Sun, Oct 11, 2009 at 1:29 PM, Nifty Tom Mitchell
wrote:
> On Mon, Oct 05, 2009 at 12:02:11PM +0200, Tomislav Maric wrote:
>> Nifty Tom Mitchell wrote:
>> > On Sun, Oct 04, 2009 at 01:08:27PM +0200, Tomislav Maric wrote:
>> >> Mark Hahn wrote:
>> I've seen Centos mentioned a lot in connecti
According to SPECfp2006, the X5560 should blow the doors off of the E5430.
The X5560 scores 36 while the E5430 scores about 18.
However, our own benchmarking using nbench, unixbench, and a home-grown
utility (twobod) all show that any differences are attributed to clock speed.
I have been in a HP seminar where the AMD invited presenter told us that
quad-core Opterons are socket-compatible with older dual cores. He further
said that there will be a small performance drop in motherboards that do
not have the split-power capabality.
Has anybody successfully conducted such
On Monday 12 October 2009 20:08:08 Hearns, John wrote:
> Flicking through New Scientist dated 3rd October, an article on green
> technologies suggests
> sending data centres out to sea. The idea is to use raw seawater for
> cooling, and you could use wave power for
> generating electricity. Seeming
Rahul Nabar writes:
> Yess! For sure. I used to work in a corporate stup where this was a
> nightmare. Some "smart" sys admin had decided to use the same magnetic
> ID for door-access, photoID, and computer OTP authentication. You
> needed the ID-card inserted into a reader connected via USB to
Rahul Nabar writes:
> Are there any good open source alternatives? The actual
> time-seeded random-number generation key fobs seem pretty cheap (less
> than $20 a piece e.g. http://www.yubico.com/products/yubikey/ ). So
> the hardware is OK but I still need the backend software to tie it in
> to
Thanks for the comments Jim and John!
On Mon, Oct 12, 2009 at 1:00 PM, Lux, Jim (337C)
wrote:
>
> This is what going with RSA buys you.. They have basically turnkey solutions
> for every operating system known.
> Yes, you're beholden to a proprietary
> solution, but think of it like being beh
for us. Are there any good open source alternatives? The actual
time-seeded random-number generation key fobs seem pretty cheap (less
than $20 a piece e.g. http://www.yubico.com/products/yubikey/ ).
the back-end for cards like these is a Radius server (if I'm not wrong -
last time I looked at st
On 10/12/09 10:05 AM, "Rahul Nabar" wrote:
> In all the tiny clusters I've managed so far I've had primitive (I
> think) access control by strong [sic] passwords. How practical is it
> for a small HPC setup to think about rolling out a two-factor,
> one-time-password system?
>
> [I apologize
Flicking through New Scientist dated 3rd October, an article on green
technologies suggests
sending data centres out to sea. The idea is to use raw seawater for
cooling, and you could use wave power for
generating electricity. Seemingly this guy's idea:
http://cseweb.ucsd.edu/~vahdat/
So to be a
In all the tiny clusters I've managed so far I've had primitive (I
think) access control by strong [sic] passwords. How practical is it
for a small HPC setup to think about rolling out a two-factor,
one-time-password system?
[I apologize if this might be somewhat offtopic for HPC;it could be
terme
Tomislav Maric wrote:
[...]
OK, I guess then Ubuntu will suffice for a 12 node Cluster. :) Anyway,
I'll try it and see. Thanks!
Hello, Tomislav.
Ubuntu is based on Debian, which is a well established server OS, and I
think you should consider Ubuntu LTS as a 'serious' option. It does more
th
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