Hi again... I've trying to use another MPI (mpich) and xhpl seems to
work.
I've been googling a bit and found that amd64 processor have some
problems with xhpl and MPI... BTW the answers to people's question
are not many. Do you know anything about this?
d
On Jun 8, 2006, at 1:40 PM, Davide Cittaro wrote:
> Hi there, I'm pretty new to LAM/MPI, so please be patient with me ;-)
> I've installed 10 dual opteron nodes cluster with gentoo linux and
> lam/mpi 7.1.1 connected with Gigabit Ethernet, it works fine (even
> coupled with SGE).
> I would like, now, to test the cluster with linpack, so I've
> downloaded and installed xhpl. It happens that as I increase the N
> value (the problem size value) it crashes. More in details:
> 10 nodes, 2 CPU/node, 4Gb RAM/node, running
>
> $ mpirun -np 20 /usr/bin/xhpl
> ----------------------------------------------------------------------
> --
> -----
> One of the processes started by mpirun has exited with a nonzero exit
> code. This typically indicates that the process finished in error.
> If your process did not finish in error, be sure to include a "return
> 0" or "exit(0)" in your C code before exiting the application.
>
> PID 12824 failed on node n0 (85.239.175.36) due to signal 9.
> ----------------------------------------------------------------------
> --
> -----
>
> looking at the HPL.out flie, it crashes as N=520... I'm confused, as
> I read on their website, I should be able to use values up to 40000,
> according to my cluster configuration.
>
> $ head -n6 HPL.dat
> HPLinpack benchmark input file
> Innovative Computing Laboratory, University of Tennessee
> HPL.out output file name (if any)
> 1 device out (6=stdout,7=stderr,file)
> 4 # of problems sizes (N)
> 511 515 520 525 Ns
>
> Does anybody here has same problems?
>
> Thanks
>
> d
>
> /*
> Davide Cittaro
> Bioinformatics Systems @ Informatics Core
>
> IFOM - Istituto FIRC di Oncologia Molecolare
> via adamello, 16
> 20139 Milano
> Italy
>
> tel.: +39(02)574303355
> e-mail: davide.cittaro_at_[hidden]
> */
>
>
>
> _______________________________________________
> This list is archived at http://www.lam-mpi.org/MailArchives/lam/
/*
Davide Cittaro
Bioinformatics Systems @ Informatics Core
IFOM - Istituto FIRC di Oncologia Molecolare
via adamello, 16
20139 Milano
Italy
tel.: +39(02)574303355
e-mail: davide.cittaro_at_[hidden]
*/
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