Abstract
This paper presents a generic precision optimisation methodology for quadrature computation targeting reconfigurable hardware to maximise performance at a given error tolerance level. The proposed methodology optimises performance by considering integration grid density versus mantissa size of floating-point operators. The optimisation provides the number of integration points and mantissa size with maximised throughput while meeting given error tolerance requirement. Three case studies show that the proposed reduced precision designs on a Virtex-6 SX475T FPGA are up to 6 times faster than comparable FPGA designs with double precision arithmetic. They are up to 15.1 times faster and 234.9 times more energy efficient than an i7-870 quad-core CPU, and are 1.2 times faster and 42.2 times more energy efficient than a Tesla C2070 GPU.
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Tse, A.H.T., Chow, G.C.T., Jin, Q., Thomas, D.B., Luk, W. (2012). Optimising Performance of Quadrature Methods with Reduced Precision. In: Choy, O.C.S., Cheung, R.C.C., Athanas, P., Sano, K. (eds) Reconfigurable Computing: Architectures, Tools and Applications. ARC 2012. Lecture Notes in Computer Science, vol 7199. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-28365-9_21
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DOI: https://doi.org/10.1007/978-3-642-28365-9_21
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