Date: Mon, 13 Aug 2012 02:22:29 +0200 From: magnum <john.magnum@...hmail.com> To: john-dev@...ts.openwall.com Subject: Re: bf-opencl fails self-test on CPU On 2012-08-12 20:33, Solar Designer wrote: > On Sun, Aug 12, 2012 at 11:28:05PM +0530, Sayantan Datta wrote: >> With Intel SDK bf-opencl passed the self test on i5 2500k with 1450c/s . >> However it fails with AMD SDK on same machine. Probably its not a very good >> idea but still I was wondering if we could we use the Intel SDK for AMD >> cpu's too. > > We can, but my point was that there could be a bug somewhere in our > bf-opencl code that only shows up on some builds - if so, we'd want to > find and fix the bug even if it's of little practical relevance > currently. Indeed, it is also possible that the bug is actually in > AMD's SDK. We just don't know. I believe this patch (just committed to git) strongly indicates that it's a bug in the SDK - it works around the problem with no ill side effects. magnum@...l:src [1.7.9-jumbo-6-fixes]$ ../run/john -t -fo:bf-opencl -plat=1 -dev=1 OpenCL platform 1: AMD Accelerated Parallel Processing, 2 device(s). Using device 1: AMD FX(tm)-8120 Eight-Core Processor ****Please see 'opencl_bf_std.h' for device specific optimizations**** Benchmarking: OpenBSD Blowfish (x32) [OpenCL]... DONE Raw: 3056 c/s real, 386 c/s virtual magnum View attachment "bf-opencl-cpufix.diff" of type "text/x-patch" (1408 bytes)
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