FWIW, I have seen this same problem with older versions of the Intel
9.1 compiler in Open MPI (and since OMPI's C++ bindings were derived
from LAM's C++ bindings, there is probably a correlation here).
There was a bug in all versions of the Intel 9.1 compiler related to
this issue. I reported this problem to Intel; they confirmed the bug
and then fixed it in a recent service release. I don't recall the
exact version that fixed it, but I have the following version of the
intel compilers and they work for me:
[5:48] svbu-mpi:~ % icc --version
icc (ICC) 9.1 20070109
Copyright (C) 1985-2007 Intel Corporation. All rights reserved.
On Jun 1, 2007, at 10:44 AM, Anthony R Fletcher wrote:
> I successfully compiled the cxxhello program from the LAM examples but
> get a run time error when I run it. Lamboot starts correctly, lamnodes
> works as do programs compiled with mpicc.
>
> I'm running lam, version 7.2b1svn10376 from the SVN repository,
> compiled
> with the Intel compiler, version 9.1.043. I see the same thing with
> version 7.2b1svn10366.
>
> The platform is a Fedora Core 6, 32-bit Athlon system,
>
> The error from cxxhello is
>
> % mpirun C ./cxxhello
> MPI_Comm_rank: invalid communicator: Invalid argument (rank 0,
> MPI_COMM_WORLD)
> Rank (0, MPI_COMM_WORLD): Call stack within LAM:
> Rank (0, MPI_COMM_WORLD): - MPI_Comm_rank()
> Rank (0, MPI_COMM_WORLD): - main()
> MPI_Comm_rank: invalid communicator: Invalid argument (rank 1,
> MPI_COMM_WORLD)
> Rank (1, MPI_COMM_WORLD): Call stack within LAM:
> Rank (1, MPI_COMM_WORLD): Call stack within LAM:
>
> ----------------------------------------------------------------------
> -------
> One of the processes started by mpirun has exited with a nonzero
> exit
> code. This typically indicates that the process finished in error.
> If your process did not finish in error, be sure to include a
> "return
> 0" or "exit(0)" in your C code before exiting the application.
>
> PID 27324 failed on node n0 (192.168.1.3) with exit status 22.
>
> ----------------------------------------------------------------------
> -------
>
> This has worked with the version 8 Intel compiler.
>
> Am I missing some vital flag to icpc? Any suggestions?
>
> Anthony.
>
> --
> Anthony R Fletcher
> Room 2033, Building 12A, http://dcb.cit.nih.gov/~arif
> National Institutes of Health, arif_at_[hidden]
> 12A South Drive, Bethesda, Phone: (+1) 301 402 1741.
> MD 20892-5624, USA.
> <laminfo.txt>
> _______________________________________________
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--
Jeff Squyres
Cisco Systems
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