Date: Fri, 20 Jan 2012 17:36:57 +0400 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: JtR OpenCL patch On Fri, Jan 20, 2012 at 02:01:46PM +0100, Lukas Odzioba wrote: > I am happy to announce new version of OpenCL patch for John The Ripper. Thank you! > Itis available on wiki - john-1.7.9-jumbo-5-opencl-4.1.diff. (Now updated further to -5.) > * Supported formats: ssha-opencl, raw-md5-opencl, nt-opencl, > raw-sha1-opencl, cryptmd5-opencl, phpass-opencl > * -gpu option is added for multi OpenCL device systems, works also for > OpenCL capable CPUs like Intel Sandy Bridge Did you actually test on CPUs? What OpenCL implementation did you use? My understanding is that Intel's OpenCL implementation is currently only capable of using CPU cores, but not yet the GPU component present in Sandy Bridge chips. On the bright side, it does not actually require Sandy Bridge, but also supports many older CPUs from Intel. > * faster cryptmd5 and ssha formats Got any numbers you can post? Is cryptmd5 as supported in your OpenCL patch still slower than it is with your CUDA patch? > More info about usage is available at the top of this page: > http://openwall.info/wiki/john/GPU FWIW, I've recently started mirroring these patches here: http://download.openwall.net/pub/projects/john/contrib/gpu/ Alexander
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