Date: Wed, 30 Oct 2013 13:55:51 +0100 From: Katja Malvoni <kmalvoni@...il.com> To: john-dev@...ts.openwall.com Subject: Re: bcrypt-parallella on 64-core (was: Katja's weekly report #13) Alexander, Yaniv - what I see as the biggest problem is the fact that in all runs I did so far at least one core stuck and never started computation (not counting 2nd row). I thought it was because of external loads to specific registers (r53, r0, r2, r38). Another idea I have is to use local memory instead of external - with this approach I would avoid external loads completely. But this approach failed with E16 because stack would overwrite part of S-box in some cases. But format would usually pass self test. I have that code somewhere so I'll modify optimized code accordingly and try this approach, it might work (at least for self test so that we can see performance). Katja Content of type "text/html" skipped
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