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Date: Sun, 21 Aug 2011 20:40:19 +0400
From: Solar Designer <>
Subject: Re: MPI / OpenMPI

groszek suggested, assuming that Richard is using MPI:

On Sun, Aug 21, 2011 at 4:22 AM, groszek <> wrote:
> killall -USR1 john

But apparently Richard is using something else:

On Sun, Aug 21, 2011 at 09:52:08AM -0500, Richard Miles wrote:
> Thanks for suggestion, but it doesn't work as expected. It kills my
> current john task and the next on the queue is still not responsive
> with space bar...
> ./ line 21: 14362 User defined signal 1   /tools/jtr/john
> --format=$1 -w:/home/rick/myrockyou-75.txt -rules:$i $2

Richard - you may send all john's a SIGHUP:

killall -HUP john

which makes them update their .rec files right away, then query their
status with:

john --status=SESSION-NAME

This way, you'll see the progress of each of them.

Obviously, this is not very convenient if your only reason to run
multiple john's was to use multiple CPUs.  Improvements in this area are
planned.  Currently, you can avoid running multiple john's yet use
multiple CPUs for some hash types with an OpenMP-enabled build.


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