[OMPI users] Does current Intel dual processor support MPI?

2006-09-05 Thread Aidaros Dev
Nowdays we hear about intel dual core processor, An Intel dual-core processor consists of two complete execution cores in one physical processor both running at the same frequency. Both cores share the same packaging and the same interface with the chipset/memory. Can I use MPI library to communic

[OMPI users] Remote node processes stuck

2006-09-05 Thread Paul Fons
I have what is probably a simple question (I hope). I have built openmpi-1.1.1 from source using gfortran on Mac OS X 10.4.7. I can run parallel jobs on my own using the mpiexec -np command. My machinefile contains the lines: tachyon.a04.aist.go.jp tachyon.a04.aist.go.jp gehirn.local geh

[OMPI users] MPI_Lookup_name ERROR!!

2006-09-05 Thread Eng. A.A. Isola
Hi, 1)Today I have compiled my first MPI application by using OPEN MPI compiler mpicc. A very strange thing happens, a program that worked correctly with MPICH2 now gives me an error. I show you the error message that appears when I execute it: *** An error occurred in MPI_Lookup_name *** on

Re: [OMPI users] Does current Intel dual processor support MPI?

2006-09-05 Thread Peter Kjellström
On Tuesday 05 September 2006 09:19, Aidaros Dev wrote: > Nowdays we hear about intel dual core processor, An Intel dual-core > processor consists of two complete execution cores in one physical > processor both running at the same frequency. Both cores share the same > packaging and the same interf

Re: [OMPI users] Can Open MPI support SOLARIS OS?

2006-09-05 Thread Jeff Squyres
More specifically, Sun has joined the Open MPI project. However, I believe that their first officially supported version will be v1.2 (i.e., it hasn't been released yet). On 9/4/06 12:41 PM, "George Bosilca" wrote: > Solaris is tested on a regular basis now. And Open MPI runs correctly > on t

Re: [OMPI users] Does current Intel dual processor support MPI?

2006-09-05 Thread George Bosilca
On Sep 5, 2006, at 3:19 AM, Aidaros Dev wrote: Nowdays we hear about intel dual core processor, An Intel dual-core processor consists of two complete execution cores in one physical processor both running at the same frequency. Both cores share the same packaging and the same interface wit

Re: [OMPI users] Does current Intel dual processor support MPI?

2006-09-05 Thread Greg Lindahl
On Tue, Sep 05, 2006 at 11:50:54AM -0400, George Bosilca wrote: > Yes and yes. However, these architectures fit better on a different > programming model. If you want to get the max performance out of > them, a OMP approach (instead of MPI) is more suitable. Eh? You mean all of those examples

Re: [OMPI users] Does current Intel dual processor support MPI?

2006-09-05 Thread Durga Choudhury
My opinion would be to use pthreads, for a couple of reasons: 1. You don't need an OMP aware compiler; any old compiler would do. 2. The pthread library is more well adapted and hence might be more optimized than the code emitted from an OMP compiler. If your operating system is Linux, you may u