TY - GEN
T1 - Performance modeling of algebraic multigrid on blue Gene/Q
T2 - 2012 SC Companion: High Performance Computing, Networking Storage and Analysis, SCC 2012
AU - Gahvari, Hormozd
AU - Gropp, William
AU - Jordan, Kirk E.
AU - Schulz, Martin
AU - Yang, Ulrike Meier
PY - 2012
Y1 - 2012
N2 - The IBM Blue Gene/Q represents a large step in the evolution of massively parallel machines. It features 16-core compute nodes, with additional parallelism in the form of four simultaneous hardware threads per core, connected together by a five-dimensional torus network. Machines are being built with core counts in the hundreds of thousands, with the largest, Sequoia, featuring over 1.5 million cores. In this paper, we develop a performance model for the solve cycle of algebraic multigrid on Blue Gene/Q to help us understand the issues this popular linear solver for large, sparse linear systems faces on this architecture. We validate the model on a Blue Gene/Q at IBM, and conclude with a discussion of the implications of our results.
AB - The IBM Blue Gene/Q represents a large step in the evolution of massively parallel machines. It features 16-core compute nodes, with additional parallelism in the form of four simultaneous hardware threads per core, connected together by a five-dimensional torus network. Machines are being built with core counts in the hundreds of thousands, with the largest, Sequoia, featuring over 1.5 million cores. In this paper, we develop a performance model for the solve cycle of algebraic multigrid on Blue Gene/Q to help us understand the issues this popular linear solver for large, sparse linear systems faces on this architecture. We validate the model on a Blue Gene/Q at IBM, and conclude with a discussion of the implications of our results.
UR - http://www.scopus.com/inward/record.url?scp=84876557717&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84876557717&partnerID=8YFLogxK
U2 - 10.1109/SC.Companion.2012.57
DO - 10.1109/SC.Companion.2012.57
M3 - Conference contribution
AN - SCOPUS:84876557717
SN - 9780769549569
T3 - Proceedings - 2012 SC Companion: High Performance Computing, Networking Storage and Analysis, SCC 2012
SP - 377
EP - 385
BT - Proceedings - 2012 SC Companion
Y2 - 10 November 2012 through 16 November 2012
ER -