Open MPI User's Mailing List Archives

Subject: Re: [OMPI users] How do I run OpenMPI safely on a Nehalem standalone machine?
From: John Hearns (hearnsj_at_[hidden])
Date: 2010-05-05 02:14:28

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Regarding hyperthreading, and finding our information about your CPUs
in detail, there is the excellent hwloc project from OpenMPI

http://www.open-mpi.org/projects/hwloc/

I downloaded the 1.0 release candidate, and it compiled and ran first
time on Nehalem systems. Gives a superb and helpful view of core and
cache layout. Don't be afraid to download this version.

• Next message: Guanyinzhu: "[OMPI users] MPI_Recv hang because readv failed at mca_btl_tcp_frag_recv()"
• Previous message: Gus Correa: "Re: [OMPI users] How do I run OpenMPI safely on a Nehalem standalone machine?"
• In reply to: Gus Correa: "Re: [OMPI users] How do I run OpenMPI safely on a Nehalem standalone machine?"
• Next in thread: Jeff Squyres: "Re: [OMPI users] How do I run OpenMPI safely on a Nehalemstandalone machine?"
• Reply: Jeff Squyres: "Re: [OMPI users] How do I run OpenMPI safely on a Nehalemstandalone machine?"