[petsc-users] KSP_SpeedUP

[Pedro Torres]

2010/4/14 Lisandro Dalcin <dalcinl at gmail.com>

> On 14 April 2010 19:07, Pedro Torres <torres.pedrozpk at gmail.com> wrote:
> > Thanks, for a quickly reply. I have four nodes (GigaEthernet), each node
> > with two Quad Core E5410 at 2.33GHz, Mem 16Gb - DDR2 667Mhz., and
> definitely
> > I'm not have the enough memory bandwidth for a reasonable speedup.
> >
>
> Smart process to core binding may help you (mpiexec.hydra -n 4/8
> --binding topo:sockets), Open MPI has equivalent functionality
>
>
> http://wiki.mcs.anl.gov/mpich2/index.php/Using_the_Hydra_Process_Manager#Process-core_Binding
>

Yes, It really helped me. Thank you very much!.

Regards


>
>
> --
> Lisandro Dalcin
> ---------------
> CIMEC (INTEC/CONICET-UNL)
> Predio CONICET-Santa Fe
> Colectora RN 168 Km 472, Paraje El Pozo
> Tel: +54-342-4511594 (ext 1011)
> Tel/Fax: +54-342-4511169
>



-- 
Pedro Torres
GESAR/UERJ
Rua Fonseca Teles 121, São Cristóvão
Rio de Janeiro - Brasil
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