caa a22 4500 445852488 CHVBK 20180317145417.0 cr unu---uuuuu 170323e20110801xx s 000 0 eng 10.1007/s11227-010-0397-z doi (NATIONALLICENCE)springer-10.1007/s11227-010-0397-z Parallel medical image reconstruction: from graphics processing units (GPU) to Grids [Elektronische Daten] [Maraike Schellmann, Sergei Gorlatch, Dominik Meiländer, Thomas Kösters, Klaus Schäfers, Frank Wübbeling, Martin Burger] We present and compare a variety of parallelization approaches for a real-world case study on modern parallel and distributed computer architectures. Our case study is a production-quality, time-intensive algorithm for medical image reconstruction used in computer tomography (PET). We parallelize this algorithm for the main kinds of contemporary parallel architectures: shared-memory multiprocessors, distributed-memory clusters, graphics processing units (GPU) using the CUDA framework, the Cell processor and, finally, how various architectures can be accessed in a distributed Grid environment. The main contribution of the paper, besides the parallelization approaches, is their systematic comparison regarding four important criteria: performance, programming comfort, accessibility, and cost-effectiveness. We report results of experiments on particular parallel machines of different architectures that confirm the findings of our systematic comparison. Springer Science+Business Media, LLC, 2010 Medical image reconstruction nationallicence Parallel programming nationallicence Parallel architecture comparison nationallicence Positron Emission Tomography (PET) nationallicence List-mode OSEM algorithm nationallicence Cell processor nationallicence Graphics processing units (GPU) nationallicence CUDA nationallicence Schellmann Maraike Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut Gorlatch Sergei Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut Meiländer Dominik Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut Kösters Thomas Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut Schäfers Klaus Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut Wübbeling Frank Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut Burger Martin Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut The Journal of Supercomputing Springer US; http://www.springer-ny.com 57/2(2011-08-01), 151-160 0920-8542 57:2<151 2011 57 11227 https://doi.org/10.1007/s11227-010-0397-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11227-010-0397-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Schellmann Maraike Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Gorlatch Sergei Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Meiländer Dominik Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Kösters Thomas Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Schäfers Klaus Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Wübbeling Frank Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut NATIONALLICENCE 700 1- Burger Martin Institut für Informatik, Universität Münster, Einsteinstr. 62, 48149, Münster, Germany aut NATIONALLICENCE 773 0- The Journal of Supercomputing Springer US; http://www.springer-ny.com 57/2(2011-08-01), 151-160 0920-8542 57:2<151 2011 57 11227 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer