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Date: Wed, 15 Aug 2012 00:23:38 +0800
From: myrice <qqlddg@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: Result of hard core password generation on 7970

Solar, Samuele -

On Sun, Aug 12, 2012 at 9:51 PM, Samuele Giovanni Tonon
<samu@...uxasylum.net> wrote:
>
> hello myrice,
> do you have committed this on github ?
>

Sorry for late replay. It is on the github now. I implement 4 bitmaps
but on global memory, it is still 16MB for each bitmaps. I will
enlarge it later. Currently I use 4*8KB = 32KB local memory for
bitmaps. I find performance decrease in 4 bitmaps case. It may due to
more work(compute for bitmaps) in kernel. But for hashes in local
memory case, it really need optimization. Here is the result:

1:
guesses: 0  time: 0:00:01:36 0.00%  c/s: 1752M

1000:
guesses: 0  time: 0:00:01:40 0.00%  c/s: 1682G

1M:
guesses: 0  time: 0:00:02:01 0.00%  c/s: 648120G

Thanks
myrice

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