[mpich-discuss] Problems with mpiexec.hydra in mpich2-1.2

[Bryan Putnam]

On Mon, 19 Oct 2009, Pavan Balaji wrote:

> Bryan,
> 
> > I've recently installed mpich2-1.2 on three of our Linux clusters, and 
> > have found that mpiexec.hydra is no longer working on any of them. One is 
> > a Chelsio cluster, the other two are Infiniband, and all three are running 
> > RHEL5.
> > 
> > The first few lines of the errors I'm seeing are appended below.
> > 
> > Note that if I use the same executable built with mpich2-1.2, and then use 
> > the previous mpich2-1.1.1p1 version of mpiexec.hydra. it still works fine.
> 
> I believe you are running into this issue:
> http://trac.mcs.anl.gov/projects/mpich2/ticket/893
> 
> This has been fixed, but the fix didn't make it into mpich2-1.2; it'll
> be in 1.2.1. In the meanwhile, can you try using PBS as:
> 
> % mpiexec.hydra -rmk pbs ./hellof
> 
> .. and let us know if that works OK?
> 
> Thanks,
> 
>  -- Pavan

Pavan,

Using

mpiexec.hydra -rmk pbs ./hellof
mpiexec.hydra -f $PBS_NODEFILE -rmk pbs -np 4 ./hellof

did not have any effect. If the fix is in mpich2-1.2.1 that sounds good. 
We can still use the OSC mpiexec, or the mpdboot method, or the 
mpiexec.hydra from mpich2-1.1.1p1.

Thanks,
Bryan

> 
> -- 
> Pavan Balaji
> http://www.mcs.anl.gov/~balaji
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