Date: Tue, 12 Apr 2011 03:24:24 +0200 From: Łukasz Odzioba <lukas.odzioba@...il.com> To: john-dev@...ts.openwall.com Subject: Re: sha256 format patches >Right, but your current code will likely bump into another bottleneck >first. I think it already does on my system. You might be right. >> Slow sha256 calculates 380 c/s - 35kB/s PCI-e transfer >I think you wrongly substituted the on-CPU speed here (not GPU), but >that didn't affect your conclusion. That's my mistke it should be around 2500 c/s as on the bottom of my post. I also was wrong about 64bit integers in cuda (nv is not boasting of it). According to this document http://developer.download.nvidia.com/compute/cuda/3_0/toolkit/docs/ptx_isa_2.0.pdf - page 64, this should't be a problem. Bitslice implementation looks very interesting. I'll do further research on it. oclHashcat results are impressive. Thanks for *1mod.diff ! Lukas
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