Date: Thu, 17 Jan 2013 15:07:41 +0400 From: Solar Designer <solar@...nwall.com> To: john-dev@...ts.openwall.com Subject: Re: CUDA multigpu first draft for pwsafe Lukas - On Wed, Jan 16, 2013 at 10:22:12PM +0100, Lukas Odzioba wrote: > Thanks to one of john users I got access to GTX 690. Cool! Can you benchmark other CUDA and OpenCL formats on it as well, and compare those to the older NVIDIA cards that we have? > For identical gpus code scales very well: > before: > Raw: 96376 c/s real, 97090 c/s virtual > after: > Raw: 192752 c/s real, 192752 c/s virtual The single GPU run here is a bit slower than what we're getting on bull's o/c GTX 570: Benchmarking: Password Safe SHA-256 [CUDA]... DONE Raw: 108881 c/s real, 108196 c/s virtual Local worksize (LWS) 256, Global worksize (GWS) 57344 Benchmarking: Password Safe SHA-256 [OpenCL]... DONE Raw: 128143 c/s real, 128862 c/s virtual and a lot slower than what we're getting on HD 7970: Local worksize (LWS) 64, Global worksize (GWS) 57344 Benchmarking: Password Safe SHA-256 [OpenCL]... DONE Raw: 352524 c/s real, 17203K c/s virtual I am not surprised. Nice work on multi-GPU, although I guess we'll approach it differently at a later time. Thanks, Alexander
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