TY - GEN
T1 - Multicore and accelerator development for a leadership-class stellar astrophysics code
AU - Messer, O. E.Bronson
AU - Harris, J. Austin
AU - Parete-Koon, Suzanne
AU - Chertkow, Merek A.
PY - 2013
Y1 - 2013
N2 - 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 (1). 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.
AB - 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 (1). 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.
KW - GPU
KW - OpenACC
KW - OpenMP
KW - stellar astrophysics
KW - supernovae
UR - http://www.scopus.com/inward/record.url?scp=84874196264&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-36803-5_6
DO - 10.1007/978-3-642-36803-5_6
M3 - Conference contribution
AN - SCOPUS:84874196264
SN - 9783642368028
T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
SP - 92
EP - 106
BT - Applied Parallel and Scientific Computing - 11th International Conference, PARA 2012, Revised Selected Papers
T2 - 11th International Conference on Applied Parallel and Scientific Computing, PARA 2012
Y2 - 10 June 2012 through 13 June 2012
ER -