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000022300 005__ 20170622150006.0
000022300 04107 $$aeng
000022300 046__ $$k2015-05-25
000022300 100__ $$aStavroulakis, G.
000022300 24500 $$aENHANCING THE PERFORMANCE OF ITERATIVE SOLVERS IN THE CONTEXT OF STRUCTURAL DYNAMICS

000022300 24630 $$n5.$$pComputational Methods in Structural Dynamics and Earhquake Engineering
000022300 260__ $$bNational Technical University of Athens, 2015
000022300 506__ $$arestricted
000022300 520__ $$2eng$$aSpatial and temporal discretization of partial differential equations, such as the ones occurring from continuum mechanics theory, produce sparse matrices which are dominated by zero elements. These matrices are usually involved in the solution of large linear systems which describe the behaviour of complex structural systems which may exhibit dynamic and/or non-linear properties. For the solution of these systems in a parallel environment, domain decomposition methods are usually employed ([2], [3]) which utilize iterative solvers such as the Krylov subspace solvers. These solvers involve the execution of three time-consuming kernels [1], namely sparse-matrix vector products (SpMV), vector-vector operations (AXPY) and dot products, while for domain decomposition methods, forward and backward substitution is also included. In this work, an acceleration scheme for the SpMV is presented, taking into consideration the specific properties of the sparse matrices that are produced from the spatial and temporal discretization of structural dynamics problems and its numerical performance is showcased. .

000022300 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000022300 653__ $$a

000022300 7112_ $$aCOMPDYN 2015 - 5th International Thematic Conference$$cCrete (GR)$$d2015-05-25 / 2015-05-27$$gCOMPDYN2015
000022300 720__ $$aStavroulakis, G.$$iPapadrakakis, M.$$iKaratarakis, A.
000022300 8560_ $$ffischerc@itam.cas.cz
000022300 8564_ $$s19715$$uhttps://invenio.itam.cas.cz/record/22300/files/C3582_abstract.pdf$$yOriginal version of the author's contribution as presented on CD, section: 
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000022300 962__ $$r22030
000022300 980__ $$aPAPER