Friday 14 March, 11:00h, at Nikhef in H331
Speaker: David Groep (Nikhef)
Title: "Big Data Beyond Moore’s Law – highlights from CHEP2013"
Abstract:
“Much of what we knew we have forgotten, but much of what was forgotten we have now learnt anew”: over 70 hours of material and 280 posters constitute the wealth of new ideas presented during the Computing in High Energy and Nuclear Physics conference in October 2013 in Amsterdam. But at the same time they address some of the same questions we faced at the first CHEP conference in Amsterdam in 1985. This meta-summary talk will review the highlights of the CHEP2013 conference, ranging from the convergence of on-line and off-line processing, the increased use of common frameworks for event processing, a myriad of distributed processing frameworks (not only for experiments but also for the infrastructure providers), storage systems for the Petabyte range, and the experience of running all this in production across all the HENP computing centres in the world. But special focus of course goes to many-core and vector processing: a hot topic 30 years ago, the end of Dennard scaling a few years ago has rightfully rekindled the interest in parallel and vector algorithms. We now need to learn anew a lot of what we had almost forgotten – just to be able to exploit modern processor architectures and new accelerator boards; and maybe at the same time recoup the massive performance waste we face in most HENP codes today even on conventional CPUs. But if indeed we had lost some of our collective knowledge even on computing itself, how can we preserve our data and knowledge for the future? Will we remember how to analyse and reproduce our results 30 years from now? and in a hundred years? As our field matures we grow closer to the library and cultural heritage specialists than we may have though before … have you described your data well enough?
link naar colloquia pagina