Date: Thu, 04 Aug 2011 19:56:49 +0200 From: groszek <necro@...icon.pl> To: john-users@...ts.openwall.com Subject: Re: JtR CUDA patch On 08/04/2011 06:06 AM, Lukas Odzioba wrote: > Hi all! > > I've prepared patch adding nVidia GPU's support for the following formats: > phpass, cryptmd5, cryptsha256, cryptsha512 > > Performance is rather poor, here's a few benchmarks on my GTX460: > > phpass 292k c/s > cryptmd5 391k c/s > cryptsha256 7800 c/s > cryptsha512 5600 c/s > On my GTS 250m i get: Benchmarking: PHPASSCUDA [PORTABLE-MD5]... DONE Raw: 79973 c/s real, 80105 c/s virtual Benchmarking: CRYPTMD5CUDA saltlen=8,passlen=8 [MD5-based CRYPT]. DONE Raw: 57714 c/s real, 57829 c/s virtual Benchmarking: CRYPTSHA256CUDA [SHA256-based CRYPT]... DONE Raw: 823 c/s real, 825 c/s virtual Benchmarking: CRYPTSHA512CUDA [SHA512-based CRYPT]... DONE Raw: 559 c/s real, 560 c/s virtual This is very, very slow... and system becomes unresponsible (even mouse cursor is dead) while its running. Compiled with: - Cuda compilation tools, release 4.0, V0.2.1221 (4.0.8) - gcc x86_64 4.4.5 (cuda still doesn't like 4.5 ... aww!)
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