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Section: New Software and Platforms
MUMPS
A MUltifrontal Massively Parallel Solver
Keywords: High-Performance Computing - Direct solvers - Finite element modelling
Functional Description: MUMPS is a software library to solve large sparse linear systems (AX=B) on sequential and parallel distributed memory computers. It implements a sparse direct method called the multifrontal method. It is used worldwide in academic and industrial codes, in the context numerical modeling of physical phenomena with finite elements. Its main characteristics are its numerical stability, its large number of features, its high performance and its constant evolution through research and feedback from its community of users. Examples of application fields include structural mechanics, electromagnetism, geophysics, acoustics, computational fluid dynamics. MUMPS is developed by INPT(ENSEEIHT)-IRIT, Inria, CERFACS, University of Bordeaux, CNRS and ENS Lyon. In 2014, a consortium of industrial users has been created (http://mumps-consortium.org).
Release Functional Description: MUMPS versions 5.1.0, 5.1.1 and 5.1.2, all released in 2017 include many new features and improvements. The two main new features are Block Low-Rank compression, decreasing the complexity of sparse direct solvers for various types of applications, and selective 64-bit integers, allowing to process matrices with more than 2 billion entries. Several new features have been developed in 2017 and 2018 that are included in some MUMPS versions provided to partners for experimentation (e.g. in the context of industrial contracts). These features will appear in the future public versions, starting with MUMPS 5.2.0.
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Participants: Gilles Moreau, Abdou Guermouche, Alfredo Buttari, Aurélia Fevre, Bora Uçar, Chiara Puglisi, Clément Weisbecker, Emmanuel Agullo, François-Henry Rouet, Guillaume Joslin, Jacko Koster, Jean-Yves L'excellent, Marie Durand, Maurice Bremond, Mohamed Sid-Lakhdar, Patrick Amestoy, Philippe Combes, Stéphane Pralet, Theo Mary and Tzvetomila Slavova
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Partners: Université de Bordeaux - CNRS - CERFACS - ENS Lyon - INPT - IRIT - Université de Lyon - Université de Toulouse - LIP