Date: Wed, 15 Dec 2010 23:28:16 +0300 From: Solar Designer <solar@...nwall.com> To: john-users@...ts.openwall.com Subject: Re: MacOSX Jumbo 9 and OpenMP DES Custom Binary Erik, all - On Mon, Dec 13, 2010 at 06:56:47AM -0500, Erik Winkler wrote: > I created an updated version of the MacOS X binary using jumbo 9 and the omp des 7 patches and put it up on the wiki at http://openwall.info/wiki/john/custom-builds. Thanks! I added this to the usual places: http://www.openwall.com/john/#contrib http://download.openwall.net/pub/projects/john/contrib/macosx/ > I used gcc 4.6.0 this time ... Actually, gcc 4.6.0 has not been released yet, and the release will differ from current development snapshots, including in OpenMP specific aspects. One relevant change went in just recently: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43706 "Default to spin count 300000 instead of 20000000 if neither OMP_WAIT_POLICY nor GOMP_SPINCOUNT is specified." > and there is improved performance with DES That's nice. > and a little bit with LM hashes For LM hashes, it is typically possible to obtain better performance by using the "faster bitslice DES key setup" patch alone (no OpenMP). This is john-1.7.6-fast-des-key-setup-3.diff.gz available here: http://openwall.info/wiki/john/patches I understand that this might be unsuitable for a generic binary build where you want OpenMP to be available for other hash types. Thanks again, Alexander
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