Hello Terry,Finally, I have installed dbx. I enclose a file with the result that I get when I type "dbx - PID of mpirun..." and then "where" on computer 10.4.5.123 .
Do you have any idea what could be the problem?
Thanks a lot!! Sofia----- Original Message ----- From: "Terry Dontje" <terry.don...@sun.com>
To: <us...@open-mpi.org> Sent: Wednesday, September 17, 2008 5:52 PM Subject: Re: [OMPI users] Problem with MPI_Send and MPI_Recv
Date: Wed, 17 Sep 2008 16:23:59 +0200 From: "Sofia Aparicio Secanellas" <sapari...@grpss.ssr.upm.es> Subject: Re: [OMPI users] Problem with MPI_Send and MPI_Recv To: "Open MPI Users" <us...@open-mpi.org> Message-ID: <0625EEFB84E04647A1930A963A8DF7E3@aparicio1> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Hello Terry, Thank you very much for your help.> Sofia, >> I took your program and actually ran it successfully on my systems > using Open MPI r19400. A couple questions:> > 1. Have you tried to run the program on a single node?> mpirun -np 2 --host 10.4.5.123 --prefix /usr/local > ./PruebaSumaParalela.out>Yes. In this case, the program works perfectly.> 2. Can you try and run the code the following way and is the output > different? > mpirun -np 2 --host 10.4.5.123,edu@10.4.5.126 --mca > mpi_preconnect_all 1 --prefix /usr/local ./PruebaSumaParalela.out>The program also hangs but the output is different. In both computers I get the following:Inicio Inicio totalnodes:2 mynode:0 Inicio RecvOk, so it looks like rank 1 is not getting out of MPI_Init> 3. When the program hangs can you attach a debugger to one of the > processes and print out a stack?>I do not know how to do that.With Solaris, I usually do the following: % dbx - <pid of process> dbx> where <stack prints out>Sorry for the bonehead question but is edu@10.4.5.126 the actual machine name? Is its IP address really 10.4.5.126? Can you try that instead? I would guess the issue is that the tcp btl is somehow not matching the two nodes as being connected to each other.> 4. What version of Open MPI are you using, on what type of machine, > using which OS?>Openmpi-1.2.2 in both computers In 10.4.5.123 I have:Ubuntu Linux pichurra 2.6.22-15-generic #1 SMP Tue Jun 10 09:21:34 UTC 2008 i686 GNU/LinuxIn edu@10.4.5.126 I have:K-Ubuntu Linux hp1-Linux 2.6.20-16-generic #2 SMP Sun Sep 23 19:50:39 UTC 2007 i686 GNU/Linux--tdSofia_______________________________________________ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users No virus found in this incoming message Checked by PC Tools AntiVirus (4.0.0.26 - 10.100.007).http://www.pctools.com/free-antivirus/
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result_dbx
Description: Binary data
