Date: Sun, 22 Apr 2012 13:17:24 +0200 From: magnum <john.magnum@...hmail.com> To: john-dev@...ts.openwall.com Subject: Re: New RAR OpenCL kernel On 04/22/2012 04:26 AM, Rich Rumble wrote: > This site keeps coming up here http://www.golubev.com/igprs/ ... had a > blog post about properly powering and then tweaking the settings of > the GPU of a 6990: http://www.golubev.com/blog/?p=210 He confirms that RAR is very hard to write in GPU and that different cards need completely different algorithms. Maybe I chose a bad first experiment :) > it's possible > that Nvidia or other ATI models aren't running at full speed by > default or for some HW reason...? For mobile devices like the one I tested, this is even more plausible. A full size computer can easily have a kilo-watt power supply, and a laptop PS is less than a tenth of that. Also, cooling in a laptop is not comparable to a full size tower case... But then why did they put a GPU in a laptop in the first place? Marketing? magnum
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