Parallel Element Agglomeration Algebraic Multigrid and Upscaling Library

Software · Tue Oct 24 00:00:00 EDT 2017

OSTI ID:1418985

Barker, Andrew T. ^[1]; Benson, Thomas R. ^[1]; Lee, Chak Shing ^[1]; Osborn, Sarah V. ^[1]; Vassilevski, Panayot S. ^[1]; Villa, Umberto E. ^[1]

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1. LLNL

ParELAG is a parallel C++ library for numerical upscaling of finite element discretizations and element-based algebraic multigrid solvers. It provides optimal complexity algorithms to build multilevel hierarchies and solvers that can be used for solving a wide class of partial differential equations (elliptic, hyperbolic, saddle point problems) on general unstructured meshes. Additionally, a novel multilevel solver for saddle point problems with divergence constraint is implemented.

• Short Name / Acronym: ParELAG; 005578MLTPL00
• Site Accession Number: LLNL-CODE-745557
• Version: 00
• Programming Language(s): Medium: X; OS: Linux and Darwin
• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• Contributing Organization: Lawrence Livermore National Laboratory
• DOE Contract Number: AC52-07NA27344
• OSTI ID: 1418985
• Country of Origin: United States