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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