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A SystemC AMS extension for controlled modules and dynamic step sizes

: Reuther, Christiane; Einwich, Karsten

Postprint urn:nbn:de:0011-n-2195527 (484 KByte PDF)
MD5 Fingerprint: 9095872dbaf59a76138da0705ab5f7c3
Created on: 20.11.2012

Morawiec, Adam ; European Electronic Chips & Systems design Initiative -ECSI-, Gieres; Institute of Electrical and Electronics Engineers -IEEE-:
Forum on Specification & Design Languages, FDL 2012. Proceedings : September 18-20, 2012, Vienna, Austria
Gieres: ECSI, 2012
ISBN: 978-2-9530504-5-5
ISBN: 978-2-9530504-7-9
ISBN: 978-1-4673-1240-0
Forum on Specification & Design Languages (FDL) <2012, Vienna>
Conference Paper, Electronic Publication
Fraunhofer IIS, Institutsteil Entwurfsautomatisierung (EAS) ()

This paper presents a possibility to increase significantly the speed of simulation of the linear solver in SystemC AMS for certain categories of models. This is achieved by the aid of the Woodbury formula. This formula enables to compensate the time-consuming refactorization of the coefficient matrix in the linear system in case of a modicum of changed matrix entries. The modification of the coefficient matrix of a linear system of equations is caused by controlled linear modules which change their value in time and variable step sizes. The linear solver is prepared to master dynamic step sizes. This is important for the dynamic extension of the TDF model of computation which is introduced in [1]. The article finishes with a demonstration of the benefit of the Woodbury formula on the basis of relevant industry examples.