Advance registration at reduced rates for the 2012 International Supercomputing Conference officially closes on 15 May. By registering now, ISC’12 attendees can save more than 25 per cent off the onsite registration rates at the Congress Center Hamburg. Taking place 17-21 June in Hamburg, Germany, the comprehensive program consists of full-day tutorials, workshops, a four-day conference and three-day exhibition featuring exhibits from leading HPC companies and research organisations. At the time of writing, the number of exhibitors stands at 172.