AuthorsD. Unat, X. Cai and S. Baden
TitleOptimizing the Aliev-Panfilov Model of Cardiac Excitation on Heterogeneous Systems
AfilliationScientific Computing, Center for Biomedical Computing (SFF), , Scientific Computing
Project(s)Center for Biomedical Computing (SFF)
Publication TypeTalks, contributed
Year of Publication2010
Location of TalkTalk at Para 2010: State of the Art in Scientific and Parallel Computing in Reykjavik on June 6-9, 2010

The Aliev-Panfilov model is a simple model for signal propagation in cardiac tissue, and accounts for complex behavior such as how spiral waves break up and form elaborate patterns. Spiral waves can lead to life-threatening situations such as ventricular fibrillation. We discuss an implementation and underlying optimizations for the nVIDIA Tesla C1060 GPU as well as an implementation on multiple GPUs running under MPI. We achieve nearly perfect scaling on 4 GPUs, in single precision, running 58 times faster than a CPU-only implementation and 26 times faster in double precision.

Citation KeySimula.acdc.8