Publication Type
Conference Paper
Book Title
Applied Parallel and Scientific Computing
Publication Date
Page Numbers
92 to 106
Volume
7782
Publisher Location
Heidelberg, Germany
Conference Name
PARA 2012
Conference Location
Helsinki, Finland
Conference Date
Abstract
We describe recent development work on the core-collapse supernova code CHIMERA. CHIMERA has consumed more than 100 million cpu-hours on Oak Ridge Leadership Computing Facility (OLCF) platforms in the past 3 years, ranking it among the most important applications at the OLCF. Most of the work described has been focused on exploiting the multicore nature of the current platform (Jaguar) via, e.g., multithreading using OpenMP. In addition, we have begun a major effort to marshal the computational power of GPUs with CHIMERA. The impending upgrade of Jaguar to Titan – a 20+ PF machine with an NVIDIA GPU on many nodes – makes this work essential.
