Date: Thu, 20 Aug 2015 22:40:16 +0200 From: Agnieszka Bielec <bielecagnieszka8@...il.com> To: john-dev@...ts.openwall.com Subject: Re: PHC: Argon2 on GPU 2015-08-20 22:34 GMT+02:00 Solar Designer <solar@...nwall.com>: > On Thu, Aug 20, 2015 at 08:04:20PM +0200, Agnieszka Bielec wrote: >> 2015-08-19 18:39 GMT+02:00 Solar Designer <solar@...nwall.com>: >> > I think you may try working on ulong16 or ulong8 instead. I expect >> > ulong8 to match the current GPU hardware best, but OTOH ulong16 makes >> > more parallelism apparent to the OpenCL compiler and allocates it to one >> > work-item. So please try both and see which works best. >> >> I created something using ulong8, it's almost not noticeable better >> speed in my laptop but worse on super both cards, no idea if this is >> what you wanted ( I think that not ), you can take a look on branch >> vector8 > You should also > use the wider vector type for the global memory references and in the > kernel parameter list. was even more slower (on super, both cards)
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