Abstract
In this paper we investigate the performance-energy balance of a variety of concurrent architectures, from general-purpose and digital signal multicore systems to graphics processors (GPUs), representative of current technology. This analysis employs the conjugate gradient method, an important algorithm for the iterative solution of linear systems that is basically composed of the sparse matrix-vector product and other (minor) vector kernels. To allow a fair comparison, we leverage simple implementations of the numerical methods and underlying kernels, and rely only on those optimizations applied by the target compiler.
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Acknowledgements
This work was supported by the CICYT project TIN2011-23283 and FEDER, and by EU FET grant “EXA2GREEN” 318793.
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Aliaga, J.I. et al. (2014). Performance and Energy Analysis of the Iterative Solution of Sparse Linear Systems on Multicore and Manycore Architectures. In: Wyrzykowski, R., Dongarra, J., Karczewski, K., Waśniewski, J. (eds) Parallel Processing and Applied Mathematics. PPAM 2013. Lecture Notes in Computer Science(), vol 8384. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-55224-3_72
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DOI: https://doi.org/10.1007/978-3-642-55224-3_72
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