Re: [SCIENTIFIC-LINUX-USERS] Installation media not recognized duringinstall...

2010-10-21 Thread Troy Dawson

Martes G Wigglesworth wrote:

  On 10/19/2010 11:55 AM, Troy Dawson wrote:


Where, exactly, did you get the dvd-i386 iso?
There are many i386 DVD images relating to Scientific Linux.  Until we 
know which one you are talking about, it's very hard to help.


I checked my history and found this link, which was the source of the 
incident DVD image:


http://ftp1.scientificlinux.org/linux/scientific/55/iso/i386/dvd/SL.55.051810.DVD.i386.disc1.iso



Thanks for sending that.  It helps narrow things down.

Installation page does need a bit of work.

You previously said

I am attempting to install the dvd-i386 iso on a Dell Dimension 5100c
(P4+2GB+CD/DVD) system.
...it attempts to use the option for local CDRom, it fails
to see the DVD that the installation is actually running off of.  The
process halts, and all activities await a recognized CD.

Do you happen to know how what style your CD/DVD is?
Is it ATA, SATA, SCSI, or USB?

It might sound odd that we would list USB, but some manufacturers are 
starting to do that.  Maybe a USB DVD drive is cheaper than a SATA one, 
I don't know.


Troy
--
__
Troy Dawson  daw...@fnal.gov  (630)840-6468
Fermilab  ComputingDivision/SCF/FEF/SLSMS Group
__


Re: TESTING - glibc update for SL5

2010-10-21 Thread Troy Dawson

Hello,
Thus far the tests have been positive, but several people have asked me 
one question.


Do you have to reboot your machine for this update to take effect?

I *believe* the answer is You don't have to reboot your machine for 
this update to take effect, but it is a good practice.


The postinstall script that get's run (glibc_post_upgrade.arch) is a 
binary, so I can't tell exactly what it does.  I know that at a minimum 
is restarts init.  So at the very least, every process started after the 
update is affected.
It might do more than that, and it probably does.  But I don't know that 
for a fact.


Thanks
Troy

Troy J Dawson wrote:

Hello,
Due to the high demand for this glibc update, we are putting it into our 
general testing area so that people can install it as soon as possible.
Although this glibc hasn't gone through our full testing procedure, it 
has gone through preliminary testing, and we expect it to pass all of 
our testing.


This glibc update fixes CVE-2010-3847

We plan on pushing this out on tomorrow - 21 October 2010

To test or update

SL5
---

  yum --enablerepo=sl-testing update glibc\*

or you can download rpm's by hand at

http://ftp.scientificlinux.org/linux/scientific/5rolling/testing/i386/glibc/
http://ftp.scientificlinux.org/linux/scientific/5rolling/testing/x86_64/glibc/

Thanks
Troy Dawson

--
__
Troy Dawson  daw...@fnal.gov  (630)840-6468
Fermilab  ComputingDivision/SCF/FEF/SLSMS Group
__


AMD Magny-Cours

2010-10-21 Thread Esztermann, Ansgar
Hi everyone,

can someone tell me what the support status of Magny-Cours is?
In upstream's release notes and knowledgebase, I have found some obscure (to 
me) notes stating that there is some support with 5.4, 2.6.18-164.9, some more 
with 5.5, and still more with 6.
Currently, we have a bunch of 6168-based 4-core machines here, and while they 
are quite stable with 5.4 and kernel 2.6.18-164.11.1, performance of our main 
hpc application is abysmal. It is 48-way multithreaded and yields hardly even 
half the expected performance; what is more, performance is varying from run to 
run by something like +/- 30%.


Thanks,

A.
-- 
Ansgar Esztermann
DV-Systemadministration
Max-Planck-Institut für biophysikalische Chemie, Abteilung 105


Re: AMD Magny-Cours

2010-10-21 Thread Steven Timm

When Fermilab did our HW evaluation earlier this year we had
Magny-Cours based machines, 12 core processors, available.  It did
work but I don't know what if any tunes were done.

Steve


On Thu, 21 Oct 2010, Esztermann, Ansgar wrote:


Hi everyone,

can someone tell me what the support status of Magny-Cours is?
In upstream's release notes and knowledgebase, I have found some obscure (to 
me) notes stating that there is some support with 5.4, 2.6.18-164.9, some more 
with 5.5, and still more with 6.
Currently, we have a bunch of 6168-based 4-core machines here, and while they 
are quite stable with 5.4 and kernel 2.6.18-164.11.1, performance of our main 
hpc application is abysmal. It is 48-way multithreaded and yields hardly even 
half the expected performance; what is more, performance is varying from run to 
run by something like +/- 30%.


Thanks,

A.



--
--
Steven C. Timm, Ph.D  (630) 840-8525
t...@fnal.gov  http://home.fnal.gov/~timm/
Fermilab Computing Division, Scientific Computing Facilities,
Grid Facilities Department, FermiGrid Services Group, Assistant Group Leader.


xdiff for SL

2010-10-21 Thread Tom Rosmond
Is there a SL YUM repository containing the xdiff utility?

T. Rosmond