3 papers
cs.MS2019
Alsvinn: A Fast multi-GPGPU finite volume solver with a strong emphasis on reproducibility
Kjetil Lye
We present the Alsvinn simulator, a fast multi general purpose graphical processing unit (GPGPU) finite volume solver for hyperbolic conservation laws in multiple space dimensions.…
math.NA2019
A Multi-level procedure for enhancing accuracy of machine learning algorithms
Kjetil O. Lye, Siddhartha Mishra, Roberto Molinaro
We propose a multi-level method to increase the accuracy of machine learning algorithms for approximating observables in scientific computing, particularly those that arise in syst…
physics.comp-ph2019
Deep learning observables in computational fluid dynamics
Kjetil O. Lye, Siddhartha Mishra, Deep Ray
Many large scale problems in computational fluid dynamics such as uncertainty quantification, Bayesian inversion, data assimilation and PDE constrained optimization are considered…