KIOPS: A fast adaptive Krylov subspace solver for exponential integrators

•KIOPS, a new Krylov subspace algorithm for computing linear combinations of φ-functions is presented.•KIOPS uses the incomplete orthogonalization procedure and an adaptive strategy to determine the optimal parameters.•Numerical experiments demonstrate that KIOPS outperforms the current state-of-the...

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Veröffentlicht in:	Journal of computational physics 2018-11, Vol.372, p.236-255
Hauptverfasser:	Gaudreault, Stéphane, Rainwater, Greg, Tokman, Mayya
Format:	Artikel
Sprache:	eng
Schlagworte:	Adaptive algorithms Adaptive Krylov subspace methods Algorithms Computation Computational physics Exponential integrators Incomplete orthogonalization Integrators Jacobi matrix method Jacobian matrix Matrix exponential Subspaces Time integration φ-functions
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