john-users - Re: issues with mpirun

Openwall GNU/*/Linux 3.0 - a small security-enhanced Linux distro for servers

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Date: Sat, 4 May 2013 16:09:02 +0200
From: magnum <john.magnum@...hmail.com>
To: john-users@...ts.openwall.com,
 T E <tobias2esc@...oo.com>
Subject: Re: issues with mpirun

On 4 May, 2013, at 14:56 , T E <tobias2esc@...oo.com> wrote:
>> You did it right as far as stated here. Did you "make clean" after editing Makefile though?
> 
> 
> Yes, I did a "make clean" before compiling and I am sure that I used the binary I created before.
> 
> Luckily I was able to fix the problem today. In addition to installing OpenMP and mpich with apt-get (as described in the tutorial)

Assuming you mean OpenMPI and mpich, you should use either. Not both.

> I had to compile the mpich sourcecode (http://www.mpich.org/) manually. After compiling mpich I didn't need to recompile JtR again, but was able to run john with up to 8 kernels with mpi.
> However, I don't really know which part of mpich was missing (and why this wasn't installed using apt-get). As it was not necessary to recompile john it must be something like a runtime lib or an additional binary. 

That's odd.

> For future development it would be useful if john could print a warning if someone tries to use mpirun without having all necessary libraries,...


I would think a missing library would stop john from even starting. Not sure what to test. I'm open to ideas.

magnum