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On Wednesday, July 23, 2003, at 09:29 PM, kennywang_at_[hidden]
wrote:
> I am new to LAM MPI. At first I run on Redhat 9.0 + LAM 6.5, I can
> run
> example programs with:
>
> recon -v lamhosts (two hosts in file lamhosts)
> lamboot -v lamhosts
> mpirun -np 2 fpi
>
> It's ok. But, when I downloaded and install the newest LAM 7.0, all
> failed
> to run.
>
> The following is the error infomation from "recon -v lamhost":
>
> n0<5849> ssi:boot:base:linear: booting n0 (192.168.0.81)
> n0<5849> ssi:boot:base:linear: booting n1 (192.168.0.37)
> ERROR: LAM/MPI unexpectedly received the following on stderr:
> 192.168.0.37: Connection refused
Most likely this is because the 6.5 installation was configured to use
ssh and the 7.0 installation is trying to use rsh. It does not appear
your system has rsh turned on. To test this theory, you can set the
environment variable LAMRSH to ssh and try running lamboot and recon
again - in theory, everything should "just work". If that was the
cause, you can either continue to set the environment variable (which
is what I generally do - I just have it in my shell startup files) or
you can reconfigure LAM to use ssh by default by specifying the
configure flag:
--with-rsh=ssh
to configure.
Hope this helps,
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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