Title :
A Study on Mixed Precision Techniques for a GPU-based SIP Solver
Author :
Igounet, Pablo ; Dufrechou, Ernesto ; Pedemonte, Martín ; Ezzatti, Pablo
Author_Institution :
Inst. de Comput., Univ. de la Repub., Montevideo, Uruguay
Abstract :
This article presents the study and application of mixed precision techniques to accelerate a GPU-based implementation of the Strongly Implicit Procedure (SIP) to solve hepta-diagonal linear systems. In particular, two different options to incorporate mixed precision in the GPU implementation are discussed and one of them is implemented. The experimental evaluation of our proposal demonstrates that a runtime similar to a single precision implementation on GPU can be attained, but achieving a numerical accuracy comparable to double precision arithmetic.
Keywords :
digital arithmetic; graphics processing units; GPU-based SIP solver; double precision arithmetic; hepta-diagonal linear systems; mixed precision techniques; strongly implicit procedure; Accuracy; Graphics processing units; Linear systems; Multicore processing; Proposals; Runtime; GPU; SIP; hepta-diagonal systems; mixed precision;
Conference_Titel :
Applications for Multi-Core Architectures (WAMCA), 2012 Third Workshop on
Conference_Location :
New York, NY
Print_ISBN :
978-1-4673-5025-9
DOI :
10.1109/WAMCA.2012.17
