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Date: Sat, 31 Dec 2011 14:09:13 +0000
From: Alex Sicamiotis <>
To: <>
Subject: DES with OpenMP

I've benchmarked DES (openMP) with GCC 4.6 / 4.7 and ICC 12.1... In my case, (dual core Celeron E3200 - Wolfdale 45nm core), the second core scaled +80% for GCC, and over 99.5% for ICC. So there's some kind of problem (?) in GCC-OpenMP I suppose for DES. Performance with GCC+openMP was better in blowfish and MD5 for GCC compared to ICC (not necessarily because ICC had scaling problems - rather it was slower in MD5 + Blowfish, even in single session). 


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