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Message-ID: <CAKGDhHX9hKORETQRbtX_LuO6_C1ZOOgPmDRS0c9dgcLT1d2VCA@mail.gmail.com>
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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