Date: Wed, 28 Mar 2012 04:40:32 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: rawsha256.cu patch(using shared memory) Lukas - Thank you for your help with the discussions around GSoC. On Tue, Mar 27, 2012 at 05:51:40PM +0200, Lukas Odzioba wrote: > I should have somewhere old version much faster than that. Oh, old version. This explains the faster benchmarks on the wiki. Why don't you get that faster version into magnum-jumbo, then? Does the new version have some other advantage? > Attacking worst optimized format is not a good idea if you want show > your abilities. I guess myrice was not aware that this was considered the worst optimized format, and going after a low hanging fruit makes sense in many cases (maybe not to show one's abilities, though). > First of all you must decide will you apply for slow, or fast hashes. > Those are DIFFERENT tasks with different needs. Yes, but I'm fine with people trying both briefly to get a better feeling of that. ;-) Otherwise they won't make an informed decision on what to apply for. > Please do not post multiple results for the same format, choose top1 > or avg if you want. BTW, the relbench script may be used to compare two sets of results (with multiple invocations of each version of the program): http://www.openwall.com/lists/john-dev/2011/12/14/1 (this demonstrates it for an OpenMP setting, but the same approach can be applied to different source code revisions and CUDA/OpenCL). For these highly unoptimized formats, we're looking for such major differences in speed that this fine benchmarking is not necessary, though. So raw output should better be posted. Alexander
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