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Message-ID: <4255c2571003131023y3c5c9ab2uc6d9404102ce0565@mail.gmail.com>
Date: Sat, 13 Mar 2010 11:23:21 -0700
From: RB <aoz.syn@...il.com>
To: john-users@...ts.openwall.com
Subject: Re: Is JTR MPIrun can be optimized for more cores ?
On Sat, Mar 13, 2010 at 09:23, Magnum, P.I. <rawsmooth@...dband.net> wrote:
> john-1.7.5-jumbo2:
> ------------------
> $ ./john -stdout -w=sd.lst -ru=s >file1
> words: 62570773 time: 0:00:00:12 100.00% w/s: 5171K current: snip
>
> $ ./john -stdout -w=sd.lst -ru=s >/dev/null
> words: 62570773 time: 0:00:00:10 100.00% w/s: 5804K current: snip
>
>
> john-1.7.5-jumbo2-fullmpi-3 using MPICH2
> ----------------------------------------
> $ ./john -stdout -w=sd.lst -ru=s >file2
> words: 62570773 time: 0:00:03:45 100.00% w/s: 277021 current: snip
> ^^^^ ^^^^^^
> $ ./john -stdout -w=sd.lst -ru=s >/dev/null
> words: 62570773 time: 0:00:00:29 100.00% w/s: 2124K current: snip
>
>
> john-1.7.5-jumbo2-fullmpi-3 using OpenMPI
> -----------------------------------------
> $ ./john -stdout -w=sd.lst -ru=s >file2
> words: 62570773 time: 0:00:00:13 100.00% w/s: 4693K current: snip
>
> $ ./john -stdout -w=sd.lst -ru=s >/dev/null
> words: 62570773 time: 0:00:00:11 100.00% w/s: 5266K current: snip
>
>
> I didn't change one single line of code, just recompiled it with openmpi
> libs.
This is similar to what I was seeing; I developed and tested with
OpenMPI. My tests (without the jumbo patches) were simply to run
'john --test' for a few key ciphers and showed similarly significant
hits in c/s rates over 10-15 runs each.
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