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Message-ID: <CAKGDhHUchyRMq+Oi=rGprFmooFj14DBFkKyE9LJA93K0W8ca3Q@mail.gmail.com>
Date: Mon, 13 Jul 2015 19:19:44 +0200
From: Agnieszka Bielec <bielecagnieszka8@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: Agnieszka's weekly report #10
2015-07-07 3:36 GMT+02:00 Solar Designer <solar@...nwall.com>:
> You should already have the memory (de)allocation out of the loop for
> this. So you'd need to either implement it in some temporary way first
> (like you have for Lyra2?) or complete this task first:
>
>> - Switch all other PHC finalists implemented in JtR so far to use
>> yescrypt's *_region() functions for memory allocation (effectively
>> keeping it out of the loop):
>> http://www.openwall.com/lists/john-dev/2015/07/05/17
I switched pomelo to use *_region function but I modified this
function a little, I hope you don't mind?
but in Lyra2 I am using also many very small chunks dynamically
allocated like 10-60 bytes. it depends of number of threads and I'm
not sure if *_region here makes sense
>
> As to third-party OpenCL and CUDA implementation of yescrypt:
>
>> - Implement yescrypt in OpenCL. May take a look at the existing OpenCL
>> implementation being used for BSTY cryptocoin mining, and at Lyra2
>> authors' CUDA implementation. (URLs were on the PHC discussions list.)
>>
>> - Consider integrating Lyra2 authors' CUDA implementation of yescrypt as
>> well.
>
> I've just recalled that there was a BSTY coin miner CUDA implementation
> as well, and it's likely faster (but more specialized) than the Lyra2
> authors' one. It uses some inline PTX assembly, but it's specialized to
> BSTY's older revision of yescrypt and with some parameters hard-coded.
> Maybe you'd be able to update it to current yescrypt and generalize it
> for arbitrary parameters.
I've implemented from yescrypt-opt.c, yescrypt from BSTY miner looked
like something else for me
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