Date: Wed, 8 Aug 2012 09:01:24 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: Result of hard core password generation on 7970 On Tue, Aug 07, 2012 at 11:40:47PM +0200, Samuele Giovanni Tonon wrote: > hoping it can help, this are some results on 10 minutes run on the > 6970 on the last code i found on your pg-test branch Thanks! Somehow your speeds for 1 and 1000 hashes are almost 4 times lower than what we're seeing on 7970, although your GPU should be only about 30% slower. Perhaps it's because of this: > Compilation log: > Warning: md5 kernel has register spilling. Lower performance is expected. Your speeds for 1M hashes are closer to 7970's. They're dominated by global memory latency. Alexander
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