[mpich-discuss] hydra and PBS

Bryan Putnam bfp at purdue.edu
Fri Aug 7 21:23:52 CDT 2009


On Fri, 7 Aug 2009, Pavan Balaji wrote:

> 
> Which version are you using? I remember there was a bug with respect to MPMD
> launches at some point. Can you update to 1.1.1p1?

I'll try that and let you know, we're using the previous mpich2-1.1

Bryan
> 
>  -- Pavan
> 
> On 08/07/2009 09:13 PM, Bryan Putnam wrote:
> > On Fri, 7 Aug 2009, Pavan Balaji wrote:
> > 
> > > > Could you please also tell me if it's possible to set up a master/slave
> > > > type
> > > > job using mpiexec.hydra. That is the equivalent of something like
> > > > 
> > > > mpiexec -machinefile $PBS_NODEFILE -np 1 ./master : -np 3 ./slave
> > > This should work, except mpiexec takes the option "-f" instead of
> > > "-machinefile". I'll add in an alias to "-machinefile" to do the same
> > > thing in
> > > the next release; it might be useful.
> > 
> > Pavan, that didn't seems to work for me, I see
> > 
> > coates-a001 1010% mpiexec.hydra -f $PBS_NODEFILE -np 4 ./hellof
> >  node           2 : Hello world!
> >  node           3 : Hello world!
> >  node           0 : Hello world!
> >  node           1 : Hello world!
> > 
> > Above is OK, but below...
> > 
> > coates-a001 1011% mpiexec.hydra -f $PBS_NODEFILE -np 1 ./hellof : -np 3
> > ./hellof
> > Fatal error in MPI_Init: Other MPI error, error stack:
> > MPIR_Init_thread(377): Initialization failed
> > (unknown)(): Other MPI error
> > Fatal error in MPI_Init: Other MPI error, error stack:
> > MPIR_Init_thread(377): Initialization failed
> > (unknown)(): Other MPI error
> > Fatal error in MPI_Init: Other MPI error, error stack:
> > MPIR_Init_thread(377): Initialization failed
> > (unknown)(): Other MPI error
> > Fatal error in MPI_Init: Other MPI error, error stack:
> > MPIR_Init_thread(377): Initialization failed
> > (unknown)(): Other MPI error
> > coates-a001 1012% 
> > 
> > >  -- Pavan
> > > 
> > > -- 
> > > Pavan Balaji
> > > http://www.mcs.anl.gov/~balaji
> > > 
> > 
> > 
> 
> -- 
> Pavan Balaji
> http://www.mcs.anl.gov/~balaji
> 




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