Cost-effective way to speed up micromagnetic simulations in granular media

dc.contributor.author	Τσιάντος, Βασίλειος	el
dc.contributor.author	Schrefl, Thomas	en
dc.contributor.author	Fidler, Josef	en
dc.contributor.author	Μπράτσος, Αθανάσιος Γ.	el
dc.date.accessioned	2015-06-05T17:57:23Z
dc.date.available	2015-06-05T17:57:23Z
dc.date.issued	2015-06-05
dc.identifier.uri	http://hdl.handle.net/11400/15177
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.source	http://www.scopus.com/record/display.url?origin=recordpage&eid=2-s2.0-0035498771&citeCnt=0&noHighlight=false&sort=plf-f&src=s&sid=2DCF200B00379677732236F1AFC88BE5.ZmAySxCHIBxxTXbnsoe5w%3a3440&sot=autdocs&sdt=autdocs&sl=18&s=AU-ID%2815724401200%29&relpos=23	en
dc.subject	υπολογιστική προσομοίωση
dc.subject	Μαγνητικά υλικά
dc.subject	Μαγνήτιση
dc.subject	Συνήθεις διαφορικές εξισώσεις
dc.subject	Computer simulation
dc.subject	Magnetic materials
dc.subject	Magnetization
dc.subject	Ordinary differential equations
dc.title	Cost-effective way to speed up micromagnetic simulations in granular media	en
heal.type	journalArticle
heal.classification	Μαθηματικά
heal.classification	Εφαρμοσμένα μαθηματικά
heal.classification	Mathematics
heal.classification	Applied mathematics
heal.classificationURI	N/A-Μαθηματικά
heal.classificationURI	N/A-Εφαρμοσμένα μαθηματικά
heal.classificationURI	http://skos.um.es/unescothes/C02437
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh93002523
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85079720
heal.keywordURI	http://id.loc.gov/authorities/subjects/sh85079774
heal.identifier.secondary	DOI: 10.1016/S0168-9274(01)00097-6
heal.language	en
heal.access	campus
heal.recordProvider	Τεχνολογικό Εκπαιδευτικό Ίδρυμα Αθήνας. Σχολή Τεχνολογικών Εφαρμογών. Τμήμα Ναυπηγών Μηχανικών Τ.Ε.	el
heal.publicationDate	2001-11
heal.bibliographicCitation	Tsiantos, V.D. , Schrefl, T., Fidler, J. and Bratsos, A. (2001) Cost-effective way to speed up micromagnetic simulations in granular media. Applied Numerical Mathematics. [Online] 39 (2), pp.191-204. Available from: http://www.scopus.com [Accessed 05/06/2015]	en
heal.abstract	In this paper an investigation of the effect of the maximum dimension of the Krylov subspace projection methods, within the Ordinary Differential Equations (ODEs) context, on the speed of micromagnetic simulations of granular media has been done. The stiffness of the problem has been investigated using two different solvers, a nonstiff (Adams) and a stiff one (backward differentiation formulae, BDF) for the solution of the large system of ODEs. Then micromagnetic simulations have been run for a variety of values of the maximum dimension of the Krylov subspace for different sizes of finite elements in order to establish an optimum value. Adams method requires 3 times more CPU time than BDF for the same simulation time. The latter result shows that granular media micromagnetic simulations are stiff. Furthermore, it has been found that increasing the maximum dimension of the Krylov subspace to 15 (default value =5) a considerable increase to the speed of the simulations occurs in the order of 20-52%.	en
heal.publisher	Elsevier	en
heal.journalName	Applied Numerical Mathematics	en
heal.journalType	peer-reviewed
heal.fullTextAvailability	true