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Date: Sun, 1 Apr 2012 23:44:14 +0800
From: myrice <>
Subject: Re: fast hashes on GPU

On Sat, Mar 31, 2012 at 3:08 PM, Solar Designer <> wrote:

> I just took a look.  You haven't yet implemented the keys_changed trick
> that I had proposed - you're sending the entire set of keys to GPU on
> every crypt_all() call, which you don't have to do.  Please implement
> this one trick and re-benchmark the thing _before_ you possibly proceed
> with the salts optimization (which is a lot more complicated).  We need
> to know which of the optimizations made what performance difference.
> Yes, this is only my first non-optimized version. I will add to it. I
expect I will have this done on Tuesday!

Dongdong Li

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