Date: Sun, 27 Jan 2013 09:56:20 +0530 From: Sayantan Datta <std2048@...il.com> To: john-dev@...ts.openwall.com Subject: Re: mscash2 speed (was: Proposed optimizations to pwsafe) On Sun, Jan 27, 2013 at 6:16 AM, magnum <john.magnum@...hmail.com> wrote: > Still, I get <75K real-life figures from latest oclHashCat and >100K from > latest JtR. Not sure why. That is on Cat 12.8. > > magnum > > > On 27 Jan, 2013, at 1:33 , Solar Designer <solar@...nwall.com> wrote: > > > On Sun, Jan 27, 2013 at 01:08:46AM +0100, Lukas Odzioba wrote: > >> 2013/1/27 magnum <john.magnum@...hmail.com>: > >>> Maybe that is why Atom does not list DCC2 benchmarks... > >> > >> Earlier he listed them: > >> > http://web.archive.org/web/20120103091803/http://hashcat.net/oclhashcat-plus/ > > > > This has speed for DCC2 on 7970 with Catalyst 12.4, and for GTX 570 o/c > > just like ours: > > > > > http://web.archive.org/web/20120606061027/http://hashcat.net/oclhashcat-plus/ > > > > 107.6k c/s and 31604 c/s, respectively. > > > > JtR's current speeds are: > > > > $ ./john -te -fo=mscash2-opencl -pla=1 > > OpenCL platform 1: AMD Accelerated Parallel Processing, 2 device(s). > > Device 0: Tahiti (AMD Radeon HD 7900 Series) > > Optimal Work Group Size:128 > > Kernel Execution Speed (Higher is better):1.556560 > > Benchmarking: M$ Cache Hash 2 (DCC2) PBKDF2-HMAC-SHA-1 [OpenCL]... DONE > > Raw: 103232 c/s real, 5079K c/s virtual > > > > $ ./john -te -fo=mscash2-opencl > > OpenCL platform 0: NVIDIA CUDA, 1 device(s). > > Device 0: GeForce GTX 570 > > Optimal Work Group Size:128 > > Kernel Execution Speed (Higher is better):0.475342 > > Benchmarking: M$ Cache Hash 2 (DCC2) PBKDF2-HMAC-SHA-1 [OpenCL]... DONE > > Raw: 30340 c/s real, 30567 c/s virtual > > > > $ ./john -te -fo=mscash2-cuda > > Benchmarking: M$ Cache Hash 2 (DCC2) PBKDF2-HMAC-SHA-1 [CUDA]... DONE > > Raw: 13714 c/s real, 13644 c/s virtual > > > > The CUDA build needs compile-time tuning of THREADS and BLOCKS, which I > > did not do here... > > > > Alexander > > > > Yes, the last time I saw it was 107.6k c/s for 7970 with cat 12.6. Maybe hashcat is artificially limiting their speed to reduce temps and improve responsiveness. Regards, Sayantan Content of type "text/html" skipped
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