Date: Fri, 5 Jun 2015 22:23:26 +0200 From: Agnieszka Bielec <bielecagnieszka8@...il.com> To: john-dev@...ts.openwall.com Subject: Re: PHC: Lyra2 on CPU 2015-06-05 20:37 GMT+02:00 Agnieszka Bielec <bielecagnieszka8@...il.com>: > 2015-06-02 21:34 GMT+02:00 Solar Designer <solar@...nwall.com>: >> I think for now lets export/encode nCols and nThreads, but keep the rest >> at their hard-coded defaults. > > speed decreased from 9k to 7k after I changed #define N_COLS 256 to > export variable or variable passed by stack. any advice how can i get > around this? ok, solved. there was the modulo division by N_COLS and gcc was optimizing this to x & (N_COLS-1). now I'm checking manually if this value is a power of 2
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