[Pw_forum] mpirun

FELIPE VALENCIA felipe at titan.ipicyt.edu.mx
Tue Apr 29 19:25:55 CEST 2003

Thanks for your reply Paulo...

Well, I am little experienced with beowulf... but even so I can understand
I must compile the parallel version of the program in order to run it on
parallel :-))

I do compile the pararell version of the program.. I can run it in the
localhost (and in any other host via rsh) , but I cant make it run in
several nodes, nor even in a single node, using mpirun...

When I do, for example, 

#>grep MPI\_INIT pw.x
binary file matches,

but there seems to be no reference to MPI_FINALIZE

¿may my built be wrong?

> > -------------------------------------------------------
> > It seems that [at least] one of processes that was started with mpirun
> > did not invoke MPI_INIT before quitting (it is possible that more than one
> > process did not invoke MPI_INIT -- mpirun was only notified of the first
> > one, which was on node n0).
> >
> > mpirun can *only* be used with MPI programs (i.e., programs that
> > invoke MPI_INIT and MPI_FINALIZE).  You can use the "lamexec" program
> > to run non-MPI programs over the lambooted nodes.
> > --------------------------------------------------------
> >
> > Any advices?
> try to start the code without mpirun. If it starts and does not print
>      Parallel version (MPI)
> you have not compiled properly for the parallel case
> Paolo
> -- 
> Paolo Giannozzi             e-mail:  giannozz at nest.sns.it
> Scuola Normale Superiore    Phone:   +39/050509412
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