[MPICH2-dev] Two mpich2-1.0.3/mpiexec issues

[Ezhov, Dmitry]

Dear Rusty,

Here is the example illustrating the second issue:

export TMP_ENV_VAR=1
mpiexec -genvlist TMP_ENV_VAR -n 1 -host host1 ./a.out : -n 1 -host
host2 ./a.out

or the same using configfile:

export TMP_ENV_VAR=1
mpiexec -configfile a.out.cfgfile
and a.out.cfgfile consists of following lines:
-genvlist TMP_ENV_VAR
-n 1 -host host1 ./a.out
-n 1 -host host2 ./a.out

a.out can be any MPI application, "Hello, World", for example.

Thank you.

-- 
Best regards.

Dmitry Ezhov
Software Engeneer,

Intel SSG/DPD/Parallel Solution Lab,
Russia, Sarov.

-----Original Message-----
From: Rusty Lusk [mailto:lusk at mcs.anl.gov] 
Sent: Thursday, April 20, 2006 6:47 PM
To: Ezhov, Dmitry
Cc: mpich2-dev at mcs.anl.gov; Supalov, Alexander; Voronov, German;
rbutler at mcs.anl.gov; rbutler at mtsu.edu
Subject: Re: [MPICH2-dev] Two mpich2-1.0.3/mpiexec issues

Hi Dmitry,

    Thanks for pointing these problems out.  The first one was already
fixed in our development version.  It may be that we have already fixed
the second one as well, but I would like to make sure.  Can you send me
an example invocation of mpiexec that illustrates the problem, so that
we can attempt to reproduce it?  

Thanks,
Rusty Lusk

From: "Ezhov, Dmitry" <dmitry.ezhov at intel.com>
Subject: [MPICH2-dev] Two mpich2-1.0.3/mpiexec issues
Date: Wed, 19 Apr 2006 15:46:55 +0400

> Dear Sirs,
> 
>  
> 
> The first issue is that mpiexec fails when it is used with -genv
option:
> 
>  
> 
> mpd_uncaught_except_tb handling:
> 
> exceptions.KeyError: key genv not found in parm db
> 
>  
> 
> I guess the failure occurs because of another key value is used in
line
> #535 of the mpiexec.py module:
> 
> parmdb['genv'][args[argidx+1]] = args[argidx+2]
> 
>  
> 
> I tried to correct this issue by changing 'genv' to '-genv' and after
it
> mpiexec works properly with -genv option.
> 
> What do you thing about this correction?
> 
>  
> 
> The second issue is that mpiexec fails when -genvlist option is used
> with two or more -host options (for example, using configfile):
> 
>  
> 
> mpd_uncaught_except_tb handling:
> 
> exceptions.AttributeError: 'list' object has no attribute 'split'
> 
>  
> 
> I guess this failure happens due to -genvlist parameters parsing
section
> (mpiexec.py, start line #656) executes each time the
handle_local_argset
> procedure is called. The first call (i.e. the first parsing section
> execution) converts -genvlist option parameters from string into list,
> but the second one tries to convert obtained list into list again
using
> string splitting method. And this operation results in raising
> AttributeError exception.
> 
> How do you think, whether I'm right in assumption that the issue could
> be probably fixed by moving parameters parsing section before calling
> the aforementioned procedure in order to execute this section only
once,
> for example, to line #269? At least, I tried to do it and got the
> workable mpiexec.py module properly working with -genvlist option
> together with configfile or many -host options. 
> 
>  
> 
> What is your opinion about these two issues?
> 
>  
> 
> Thank you in advance.
> 
>  
> 
> -- 
> 
> Best regards.
> 
>  
> 
> Dmitry Ezhov
> 
> Software Engeneer,
> 
>  
> 
> Intel SSG/DPD/Parallel Solution Lab,
> 
> Russia, Sarov.
> 
>  
>