Date: Sat, 31 Mar 2012 11:08:50 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: fast hashes on GPU On Sat, Mar 31, 2012 at 04:22:34AM +0800, myrice wrote: > Yes, I mean what you said. We can compute all combination of salts and a > bunch of password with invoke one kernel. So for benchmark, we have to add > a bench_set_salts for that? I don't know if it good to change the interface > at this time. However, I will test for the performance. I've just explained how you can do it in another message (a lengthy one). No, you don't have to add a bench_set_salts(). > Besides, I write xsha512-cuda format. Optimization is needed. I put it to > my github: https://github.com/qqldd/myrice-JtR I just took a look. You haven't yet implemented the keys_changed trick that I had proposed - you're sending the entire set of keys to GPU on every crypt_all() call, which you don't have to do. Please implement this one trick and re-benchmark the thing _before_ you possibly proceed with the salts optimization (which is a lot more complicated). We need to know which of the optimizations made what performance difference. Thanks, 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.