Date: Sat, 3 Dec 2011 10:53:40 +0400 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: AMD X6 multicore issue On Fri, Dec 02, 2011 at 04:58:53PM +0200, Caesarmv wrote: > I got performance: > > * guesses: 0 time: 0:00:04:41 (3) c/s: 1752 trying: o2c - saban* This is as expected. > Is it possible to use version 1.7.9 with GPU? Not 1.7.9 specifically, but yes: http://openwall.info/wiki/john/GPU You need to apply the john-1.7.8-allcuda-0.3.diff patch on top of the 1.7.8 release (non-jumbo). You can download 1.7.8 here: http://download.openwall.net/pub/projects/john/1.7.8/ and the patch here: http://openwall.info/wiki/john/patches > What performance I will get with modern video card? This gives about 4800 c/s on a GTX 460: http://openwall.info/wiki/john/GPU#SHA512-based-crypt Yes, you need an NVidia card for the current implementation. You'll probably want to run two instances of John at once: one for your GPU and the other for your CPU cores (maybe setting OMP_NUM_THREADS=5 will be more optimal then, leaving one CPU core for the GPU run - you'll need to experiment with this). Alexander
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