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Message-ID: <e2258e1d1ff68760e68251b7244b47aa@smtp.hushmail.com>
Date: Thu, 23 Jul 2015 01:33:26 +0200
From: magnum <john.magnum@...hmail.com>
To: john-dev@...ts.openwall.com
Subject: Re: PHC: yescrypt on GPU
On 2015-07-23 00:36, Agnieszka Bielec wrote:
> has anyone idea why copying parts of memory from __global to __private
> makes my code slower when there are different passwords and faster
> where all passwords are the same? I did in lyra2 something very
> similar, maybe my code is too big and I have to do split kernels?
Are there differences in length distribution in the two cases? If not,
Maybe in the slow case they end up spilling to local memory due to
harder register pressure.
magnum
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