Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Thu, 22 Aug 2013 22:06:39 +0100
From: Rafael Waldo Delgado Doblas <>
Subject: Re: Parallella: Litecoin mining


2013/8/22 Solar Designer <>

> Your epiphany-scrypt.c currently contains the entire scrypt (albeit
> specialized to the parameter values needed for Litecoin mining).
> This means that it contains not only Salsa20/8, BlockMix, and SMix, but
> also SHA-256 and PBKDF2.  Given that in scrypt almost all processing
> time is spent in SMix, we should move SHA-256 and PBKDF2 to host.  Leave
> only SMix on Epiphany.  This will free up some local memory, which
> should enable us to decrease the TMTO factor.
> Ideally, the two PBKDF2 computations (before and after SMix) that we'll
> perform on host should overlap with SMix computation on Epiphany.

Ok I will work on it now.


Content of type "text/html" skipped

Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.