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Scaling Algebraic Multigrid Solvers: On the Road to Exascale

Description: Algebraic Multigrid (AMG) solvers are an essential component of many large-scale scientific simulation codes. Their continued numerical scalability and efficient implementation is critical for preparing these codes for exascale. Our experiences on modern multi-core machines show that significant challenges must be addressed for AMG to perform well on such machines. We discuss our experiences and describe the techniques we have used to overcome scalability challenges for AMG on hybrid architectu… more
Date: December 12, 2010
Creator: Baker, A H; Falgout, R D; Gamblin, T; Kolev, T; Schulz, M & Yang, U M
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Low and High Temperature Combustion Chemistry of Butanol Isomers in Premixed Flames and Autoignition Systems

Description: Butanol is a fuel that has been proposed as a bio-derived alternative to conventional petroleum derived fuels. The structural isomer in traditional 'bio-butanol' fuel is n-butanol, but newer conversion technologies produce iso-butanol as a fuel. In order to better understand the combustion chemistry of bio-butanol, this study presents a comprehensive chemical kinetic model for all the four isomers of butanol (e.g., 1-, 2-, iso- and tert-butanol). The proposed model includes detailed high temper… more
Date: December 12, 2010
Creator: Sarathy, S M; Pitz, W J; Westbrook, C K; Mehl, M; Yasunaga, K; Curran, H J et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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