Date: Thu, 22 Aug 2013 13:44:50 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: Parallella: Litecoin mining Rafael, 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. Alexander
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.