A comparison of algebraic multigrid preconditioners using graphics processing units and multi-core central processing units

Authors:
Markus Wagner;Karl Rupp;Josef Weinbub
Affiliations:
Institute for Microelectronics, TU Wien, Wien, Austria;Institute for Microelectronics, TU Wien, Wien, Austria and Institute for Analysis and Scientific Computing, TU Wien Wiedner, Wien, Austria;Institute for Microelectronics, TU Wien, Wien, Austria
Venue:
Proceedings of the 2012 Symposium on High Performance Computing
Year:
2012

Citing 4
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Abstract

The influence of multi-core central processing units and graphics processing units on several algebraic multigrid methods is investigated in this work. Different performance metrics traditionally employed for algebraic multigrid are reconsidered and reevaluated on these novel computing architectures. Our benchmark results show that with the use of graphics processing units for the solver phase, it is crucial to keep algebraic multigrid setup times low, even if this leads to a higher number of solver iterations.