Date: Thu, 22 Aug 2013 22:06:39 +0100 From: Rafael Waldo Delgado Doblas <lord.rafa@...il.com> To: john-dev@...ts.openwall.com Subject: Re: Parallella: Litecoin mining Hello, 2013/8/22 Solar Designer <solar@...nwall.com> > 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. Regards, Rafael. Content of type "text/html" skipped
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