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From: Dave Diller (daviddiller_at_[hidden])
Date: 2005-06-24 16:12:01


All,

I am trying to use LAM on a 64-bit Linux cluster running RedHat
2.4.21. I find that the version of LAM that comes bundled with
the operating system does not function properly, specifically the
applications always hang in the method MPI_Init.

I tried downloading LAM and building it myself, and it works OK,
so I am confident that it is not an application error. The
code is very simple, basically a Hello World.

I'm guessing that this is some kind of a library problem, but
it seems that other people must have seen it too.

The output from the command "lamboot -V" is as follows:

LAM 6.5.9/MPI 2 C++ - Indiana University

        Arch: x86_64-redhat-linux-gnu
        RPI: usysv

The output from the command "uname -a" is as follows:

Linux a1 2.4.21-27.ELsmp #1 SMP Wed Dec 1 21:53:57 EST 2004 x86_64 x86_64
x86_64 GNU/Linux

I need to solve this problem, rather then working around it
by building my own version of LAM, because our customers
will be using the pre-installed version of LAM.

Any insights would be appreciated.

Thanks in advance,

Dave Diller
DavidDiller_at_[hidden]