Re: Problem namd2 and mpich2

From: Axel Kohlmeyer (akohlmey_at_cmm.chem.upenn.edu)
Date: Mon Jun 08 2009 - 09:01:42 CDT

On Mon, 2009-06-08 at 12:10 +0530, sudipta wrote:
> Hi All,

sudipta,

>
> I have compiled with NAMD with MPICH2 on a x86_64 eight node
> cluster. After the compilation some warnings came without any error.
> The namd2 is working fine if I don't write the output data in a log
> file i,e on screen it doesn't show any error.

[...]

> MB memory
> mpiexec_master.iithpc.com (handle_stdin_input 1089): stdin problem; if
> pgm is run in background, redirect from /dev/null
> mpiexec_master.iithpc.com (handle_stdin_input 1090): e.g.: mpiexec
> -n 4 a.out < /dev/null &
> mpiexec_master.iithpc.com (handle_stdin_input 1089): stdin problem; if
> pgm is run in background, redirect from /dev/null
> mpiexec_master.iithpc.com (handle_stdin_input 1090): e.g.: mpiexec
> -n 4 a.out < /dev/null &
> mpiexec_master.iithpc.com (handle_stdin_input 1089): stdin problem; if
> pgm is run in background, redirect from /dev/null
> mpiexec_master.iithpc.com (handle_stdin_input 1090): e.g.: mpiexec
> -n 4 a.out < /dev/null &
> mpiexec_master.iithpc.com (handle_stdin_input 1089): stdin problem; if
> pgm is run in background, redirect from /dev/null
> mpiexec_master.iithpc.com (handle_stdin_input 1090): e.g.: mpiexec
> -n 4 a.out < /dev/null &
>
>
> Can you please give any suggestions, how shall I rectify this problem.
> I am egar for your early reply.

have you tried following the suggestion that mpiexec gives you
on the screen? i.e. redirect input from stdin? i.e. add < /dev/null
befor the '&'???

please note, that this is the behavior of your MPI installation
and has nothing to do with NAMD. so if you need any clarifications
i suggest reading the mpiexec documentation.

cheers,
   axel.

>
> Thanks and regards
> Sudipta
>
>

-- 
=======================================================================
Axel Kohlmeyer   akohlmey_at_cmm.chem.upenn.edu   http://www.cmm.upenn.edu
   Center for Molecular Modeling   --   University of Pennsylvania
Department of Chemistry, 231 S.34th Street, Philadelphia, PA 19104-6323
tel: 1-215-898-1582,  fax: 1-215-573-6233,  office-tel: 1-215-898-5425
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