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Showing 1 to 3 of 3 for “"Inexact Solves"”.
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Inexact Solves in Interpolatory Model Reduction
… these linear systems often require employing inexact solves. The aim of this thesis is to investigate the impact of inexact solves on interpolatory model reduction. We considered preconditioning the linear systems, varying the stopping tolerances, employing GMRES and BiCG as the inexact …
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Issues in Interpolatory Model Reduction: Inexact Solves, Second-order Systems and DAEs
… systems. Especially in the large-scale setting, inexact solves become desirable if not necessary. With the introduction of inexact solutions, however, exact interpolation no longer holds. While the effect of this loss of interpolation has previously been studied, we extend the discussion to the …
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The solution of large viscoelastic flow problems using parallel iterative techniques
… Krylov iterations preconditioned with inexact solves in a two-level additive Schwarz framework are used to solve this system at each time step. Added efficiency is introduced by using a discontinuous Galerkin spatial discretization, which allows element-by-element condensation of the …