TY - GEN

T1 - Schedule optimisation for interactive parallel structure simulations

AU - Knežević, Jovana

AU - Mundani, Ralf Peter

AU - Rank, Ernst

PY - 2013

Y1 - 2013

N2 - Computational effort required for the interactive parallel simulation of a structure under loading usually does not allow for results to be gained rapidly. Further, custom decomposition techniques, as in the case of long structures such as thigh bones, typically hinder the efficient exploitation of the underlying computing power. For the algebraic equations, gained by the p-version Finite Element Method (p-FEM) describing the behaviour of one such structure, K (u = d with K the system stiffness matrix, u the nodal displacements, and d all accumulated forces, often, due to the poor condition numbers, sophisticated iterative solvers fail to be efficient. As it is pointed out in [1, 3], applying hierarchical concepts, based on a nested dissection approach (i. e. recursive domain decomposition technique based on Schur complements, the de-facto standard of most domain decomposition approaches), allow for both the design of sophisticated direct solvers as well as for advanced parallelisation strategies, both of which are indispensable within interactive applications. Our main goal is the development of an efficient load balancing strategy for the existing structure simulation of the bone stresses with p-FEM organised via octrees as described in [2].

AB - Computational effort required for the interactive parallel simulation of a structure under loading usually does not allow for results to be gained rapidly. Further, custom decomposition techniques, as in the case of long structures such as thigh bones, typically hinder the efficient exploitation of the underlying computing power. For the algebraic equations, gained by the p-version Finite Element Method (p-FEM) describing the behaviour of one such structure, K (u = d with K the system stiffness matrix, u the nodal displacements, and d all accumulated forces, often, due to the poor condition numbers, sophisticated iterative solvers fail to be efficient. As it is pointed out in [1, 3], applying hierarchical concepts, based on a nested dissection approach (i. e. recursive domain decomposition technique based on Schur complements, the de-facto standard of most domain decomposition approaches), allow for both the design of sophisticated direct solvers as well as for advanced parallelisation strategies, both of which are indispensable within interactive applications. Our main goal is the development of an efficient load balancing strategy for the existing structure simulation of the bone stresses with p-FEM organised via octrees as described in [2].

UR - http://www.scopus.com/inward/record.url?scp=84874210320&partnerID=8YFLogxK

U2 - 10.1007/978-3-642-36803-5_41

DO - 10.1007/978-3-642-36803-5_41

M3 - Conference contribution

AN - SCOPUS:84874210320

SN - 9783642368028

T3 - Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

SP - 536

EP - 540

BT - Applied Parallel and Scientific Computing - 11th International Conference, PARA 2012, Revised Selected Papers

T2 - 11th International Conference on Applied Parallel and Scientific Computing, PARA 2012

Y2 - 10 June 2012 through 13 June 2012

ER -