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Message-ID: <20120403220127.GA18289@openwall.com>
Date: Wed, 4 Apr 2012 02:01:27 +0400
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Cc: Per Thorsheim <per@...rsheim.net>, Sprengers.Martijn@...g.nl
Subject: Re: MD5-crypt on Nvidia GPUs tips
On Sun, Apr 01, 2012 at 03:03:03PM +0400, Solar Designer wrote:
> We also have GPU code for John the Ripper here:
>
> http://openwall.info/wiki/john/GPU
>
> It is slower than hashcat's, though. (IIRC, I get around 630k c/s
> without tuning on my GTX 570 1600 MHz. To do: need to try tuning it for
> the card.)
I've just tried tuning the settings for Lukas' code. With arch sm_20,
blocks 30, threads 768, I get:
Benchmarking: cryptmd5-cuda [MD5-based CRYPT]... DONE
Raw: 714240 c/s real, 707168 c/s virtual
There's still lots of room for improvement, which I hope Lukas or others
will take care of.
Alexander
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