4 papers
Skywing: A Platform for Decentralized Mathematical Computing in Unreliable Environments
Alyson Fox, Colin Ponce, Annika Mauro +4
Emerging edge, autonomous, and cyber-physical systems increasingly require mathematical computation across heterogeneous devices connected by unreliable communication networks. Tra…
Multilevel spectral coarsening for graph Laplacian problems with application to reservoir simulation
Andrew T. Barker, Stephan V. Gelever, Chak S. Lee +2
We extend previously developed two-level coarsening procedures for graph Laplacian problems written in a mixed saddle point form to the fully recursive multilevel case. The resulti…
Scalable hierarchical PDE sampler for generating spatially correlated random fields using non-matching meshes
Sarah Osborn, Patrick Zulian, Thomas Benson +3
This work describes a domain embedding technique between two non-matching meshes used for generating realizations of spatially correlated random fields with applications to large-s…
A Multilevel, Hierarchical Sampling Technique for Spatially Correlated Random Fields
Sarah Osborn, Panayot Vassilevski, Umberto Villa
We propose an alternative method to generate samples of a spatially correlated random field with applications to large-scale problems for forward propagation of uncertainty. A clas…