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Ltop August 2014

ltop@nikhef.nl

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ESC14
by Gerhard Raven 12 Aug '14

12 Aug '14

Hi *, I just received some posters for https://web.infn.it/esc14/. Looks like a relevant school… — Gerhard

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gcc (and clang) vector extensions...
by Gerhard Raven 05 Aug '14

05 Aug '14

Can’t resist sharing this one ;-) With a fairly small code change (see https://svnweb.cern.ch/trac/lhcb/changeset/175997) which does some explicit vectorisation using the gcc vector extension, I’ve been able to get the overall HLT to run 3% faster (according to valgrind). Not bad for 2 days of work ;-) (now, if only I could get 3% of the investment money in the event filter farm payed out to me, I could go on vacation for the remainder of the year) — Gerhard

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