[PerfSuite-users] RE: Psrun with argonne mpich (fwd)

[Rick K. <rk...@nc...>]

More info on psrun and MPICH/ch_p4... has anyone had success with this?

Rick

---------- Forwarded message ----------
Date: Mon, 23 Aug 2004 19:31:01 -0500 (CDT)
From: Rick Kufrin <rk...@os...>
To: "Venkatesh, Vangal" <van...@in...>
Subject: RE: Psrun with argonne mpich

Vangal,

Yes, I see that I can reproduce the same behavior here, using a ch_p4
version of MPICH.  I'm guessing it's due to the way that the commands
are constructed and eventually launched on the remote nodes, but
unfortunately I don't know an easy way to invoke mpirun or mpirun.ch_p4
to get around it.

We typically use a different MPICH (MPICH-GM) here, so probably I was
confusing with that?

One thing you can do is to change your source code to include a call
to the library that psrun uses... not sure if you're willing to do
that.  If you are, then what you'd have to do is include a call to the
following routine, probably right after MPI_Init is best:

   #include <pshwpc.h>
   int ps_hwpc_psrun(void);  (C)

or

   include 'fperfsuite.h'
   subroutine psf_hwpc_psrun(ierr)   (Fortran)

Successful returns from either of these two routines are PS_SUCCESS
(or 0).  

That should be the only change to your source, but you would have to
also arrange for the -I and -L options at link time.  The libraries
you'd want to include are -lpshwpc and possibly -lperfsuite and -lpapi,
depending on your system/environment.

With the library linked in, you can forget about psrun and just run
the executable as normal.  All the environment variables that psrun
recognizes should work as usual.

If you try this and still have problems, let me know (if it works
for you, that would be good to know too!)  In the meantime, I'll
see if I can figure out an alternate way to use psrun rather than
having to go through changing source code and let you know if something
comes up.

Rick

On Mon, 23 Aug 2004, Venkatesh, Vangal wrote:

> Rick,
>      I am getting the following error message:
> [vvenkat1@spd206-6 run_dir]$ ../../mpich-ia32e/mpich-1.2.5.2/bin/mpirun
> -np 2 /
> usr/local/bin/psrun /home/spd/vvenkat1/pop1.4/run_dir/pop2
> spd206-6: No such file or directory
> p0_10443:  p4_error: Child process exited while making connection to
> remote proc
> ess on spd206-6: 0
> 
>   Some how it thinks spd206-6 is a file (it is a machine in my
> machinefile). I also tried putting in the -machinefile option.
> 
> Vangal
>