2011 IEEE International Symposium on Parallel and Distributed Processing Workshops and Phd Forum (2011)
Anchorage, Alaska USA
May 16, 2011 to May 20, 2011
This paper presents a detailed analysis of a mixed precision iterative refinement solver applied to a linear system obtained from the 2D discretization of a fluid flow problem. The total execution time and energy need of different soft- and hardware implementations are measured and compared with those of a plain GMRES-based solver in double precision. The time and energy consumption of individual parts of the algorithm are monitored as well, enabling a deeper insight and the possibility of optimizing the energy consumption of the code on a general-purpose multi-core architecture and systems accelerated by a graphics processor.
H. Anzt et al., "Power Consumption of Mixed Precision in the Iterative Solution of Sparse Linear Systems," 2011 IEEE International Symposium on Parallel and Distributed Processing Workshops and Phd Forum(IPDPSW), Anchorage, Alaska USA, 2011, pp. 829-836.