This book constitutes the thoroughly refereed post-conference proceedings of the 11th
International Conference on Large-Scale Scientific Computations LSSC 2017 held in Sozopol
Bulgaria in June 2017. The 63 revised short papers together with 3 full papers presented were
carefully reviewed and selected from 63 submissions. The conference presents results from the
following topics: Hierarchical adaptive domain decomposition and local refinement methods
Robust preconditioning algorithms Monte Carlo methods and algorithms Numerical linear algebra
Control and optimization Parallel algorithms and performance analysis Large-scale
computations of environmental biomedical and engineering problems. The chapter 'Parallel
Aggregation Based on Compatible Weighted Matching for AMG' is available open access under a CC
BY 4.0 license.