On Thu, 27 Dec 2001, Sugimoto, Kazutaka wrote:
> I am trying to do MPI_REDUCE(3f) on the IMPI. But MPI_REDUCE(3f) can not execute well.
> Can not this function work well on IMPI?
> I've tried on LAM 6.5.6 too, But even simple IMPI program can not execute.
<SNIP>
> $ mpirun -client 0 10.123.111.6:31880 -np 1 a.out
> Remote IMPI host (my index 0) has a different index number for itself (1): Invalid argument
> MPI_Recv: process in local group is dead (rank 0, comm 9)
Let me start by saying I am in no way an expert on IMPI. Unfortunately,
our IMPI guru (Jeff) is on vacation right now. Worst case, he can jump in
on Monday when he gets back from vacation ;-).
Anyway, it looks like you are running into problems long before
MPI_REDUCE. The error message "Remote IMPI host...." is generated when
all the IMPI clients are doing their connection dance, ie, before the
completion of MPI_Init. I would be willing to bet you will run into the
same problems if you had a simple hello, world program - just INIT, print
something, and FINALIZE.
>From the information you provided, that is about all that I can determine.
Some more information will be needed to further diagnose the problem.
First, can you include the output from the IMPI server if you run with the
-v option. The complete output from the IMPI server and all the
impi clients would be very useful. Second, are you only using LAM or LAM
and another MPI implementation?
Thanks,
Brian
--
Brian Barrett
LAM/MPI developer and all around nice guy
Have a LAM/MPI day: http://www.lam-mpi.org/
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