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, S?o Crist?v?o Rio de Janeiro - Brasil -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20100414/9ac2f44b/attachment.htm>
