Title :
Bank-partition and multi-fetch scheme for floating-point special function units in multi-core systems
Author :
Kim, Young-Jun ; Chung, Kyusik ; Kim, Lee-Sup ; Park, Seong Mo
Author_Institution :
Dept. of EECS, KAIST, Daejeon, South Korea
Abstract :
A table loader unit with bank-partition and multi-fetch feature is proposed for multiple special function units in multi-core systems. By sharing the look-up tables among special function units, the proposed scheme reduces look-up table size by 54% and read power consumption by 75% for 8-core/4-bank configuration. However, the performance loss is less than 25% for various benchmark applications. As the number of cores increases for the future multi-core systems, the effects of area and power saving by the proposed schemes increase, but the performance loss is reduced.
Keywords :
floating point arithmetic; multiprocessing systems; storage allocation; table lookup; bank-partition scheme; floating-point special function unit; look-up table; multicore system; multifetch scheme; power consumption; table loader unit; Degradation; Delay; Energy consumption; Equations; Graphics; Interpolation; Performance loss; Polynomials; Read only memory; Table lookup;
Conference_Titel :
Circuits and Systems, 2009. ISCAS 2009. IEEE International Symposium on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-3827-3
Electronic_ISBN :
978-1-4244-3828-0
DOI :
10.1109/ISCAS.2009.5118127
