[Beowulf] Please help test compiler/hardware issue

James Cuff james_cuff at harvard.edu
Thu May 3 17:52:02 PDT 2007

Hi Orion,

I'm thinking you may have bad memory/hardware on one of those nodes  
here mate...

Compiles and runs fine here in 32 bit ubuntu fiesty:

jcuff at harold:~$ uname -a
Linux harold 2.6.20-15-386 #2 Sun Apr 15 07:34:00 UTC 2007 i686 GNU/ 

jcuff at harold:~$ cat /proc/cpuinfo | grep "model name"
model name      : Intel(R) Pentium(R) 4 CPU 2.53GHz

jcuff at harold:~$ gfortran -O3 -o tt test.f90
jcuff at harold:~$ time ./tt
real    8m11.766s
user    8m5.862s
sys     0m4.280s

Also your 64 bit static compiled version runs fine even on a rather  
crappy "64 bit" Celeron I have on FC 5:

[jcuff at gw ~]$ cat /proc/cpuinfo  | grep "model name"
model name      :                 Intel(R) Celeron(R) CPU 2.93GHz

[jcuff at gw ~]$ uname -a
Linux 2.6.20-1.2312.fc5 #1 SMP Tue Apr 10 15:14:58 EDT 2007 x86_64  
x86_64 x86_64 GNU/Linux

[jcuff at gw ~]$ time ./testatob
real    5m5.794s
user    3m38.785s
sys     0m9.890s

Hope this helps.



James Cuff, D. Phil.
Director of Research Computing, Life Sciences Division.
Bauer Laboratory, 7 Divinity Avenue, Cambridge, MA. 02138
Tel: 617-384-5065   Direct Dial: 617-384-7647

On May 3, 2007, at 8:34 PM, <orion at cora.nwra.com> wrote:

> >
> > Okay, I have a test case for the problem I reported before
> Statically compiled binary at http://www.cora.nwra.com/~orion/ 
> testatob.bz2
> for those of you without the PGF compiler to try.
> --
> Orion Poplawski
> Technical Manager                     303-415-9701 x222
> NWRA/CoRA Division                    FAX: 303-415-9702
> 3380 Mitchell Lane                  orion at cora.nwra.com
> Boulder, CO 80301              http://www.cora.nwra.com
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