Date: Sat, 17 Nov 2012 16:39:53 +0100 From: Marc Brinkmann <marc.brinkmann@...il.com> To: john-users@...ts.openwall.com Subject: Re: scalar mode Dear Magnum, sorry, but i'm all new to this. Like this guy... http://i2.kym-cdn.com/photos/images/original/000/234/765/b7e.jpg could you tell me, how apply the patch? I copied the file into the John folder and tried $ patch bughunt.diff But then nothing happend :( Thanks BR Marc 2012/11/17 magnum <john.magnum@...hmail.com> > This drives me mad. Could you check out the latest again, and apply the > enclosed patch? I actually do the same for OSX in office2007 due to what I > think is an nvidia bug. > > > > > In case this solves the problem, please provide benchmarks from running > with and without the --request-vectorize option. > > magnum > > > On 17 Nov, 2012, at 10:13 , Marc Brinkmann <marc.brinkmann@...il.com> > wrote: > > > I',m sorry, but it did not help in my case :( > > i tried sabayon with recent catalyst 12.10 and my ubuntu 12.04 with > > catalyst 12.8 and the very recent 12.11 beta8 > > none of them were working, but 12.11beta even did not work with the > version > > <= 13.11.2012 > > I guess its AMD's damn driver and will simply use the old build with > > catalyst 12.8. > > > > Btw. while i tested your recent builds on my Netbook running ION i never > > had any issues, so Nvidia drivers seem to be much more stable .... > > Of course it is slow 120c/s.. but i never runs into segfault... > > > > > > 2012/11/16 magnum <john.magnum@...hmail.com> > > > >> On 16 Nov, 2012, at 23:10 , magnum <john.magnum@...hmail.com> wrote: > >>> Try latest commit. The office2007/2010/2013 and ntlmv2 OpenCL formats > >> will now default to scalar mode on any device, including CPU. You can > now > >> add --request-vectorize to your command line and see if vectorizing > >> triggers the bug, or if it gets faster or slower. Office actually gets a > >> tad faster on some nvidias, I've never seen that before. > >> > >> Correction: It is ntlmv2 that gets faster vectorized on some nvidias. > And > >> only the "one salt" case (the opposite would seem more natural to me as > >> we're memory bound). > >> > >> Vectorizing the Office formats are very bad for nvidia but has shown > some > >> 40% boost on Cayman. > >> > >> CPUs should benefit from vectorizing but I have seen huge regressions in > >> some cases and great speedups in other cases. Maybe the ideal would be > to > >> decide at runtime after a quick benchmark. I'm not feeling very inspired > >> right now though. Damn drivers :-( > >> > >> magnum > >> > > >
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