Section: Software and Platforms

MUMPS

Participants : Patrick Amestoy, Alfredo Buttari, Jean-Yves L'Excellent [correspondent] , Wissam M. Sid-Lakhdar, Bora Uçar.

Mumps (for MUltifrontal Massively Parallel Solver) see http://mumps-solver.org is a software package for the solution of large sparse systems of linear equations. It implements a direct method, the so called multifrontal method; it is a parallel code capable of exploiting distributed-memory computers as well as multithreaded libraries; its main originalities are its numerical robustness and the wide range of functionalities available.

The latest public release is Mumps 4.10.0 (May 2011).

The development of Mumps was initiated by the European project PARASOL (Esprit 4, LTR project 20160, 1996-1999), whose results and developments were public domain. Since then, Mumps has been supported by CERFACS, CNRS, ENS Lyon, INPT(ENSEEIHT)-IRIT, Inria, and University of Bordeaux. Following a contractual agreement signed by those institutes, the next release of Mumps will be distributed under the Cecill-C license; a technical committee was also defined, currently composed of Patrick Amestoy, Abdou Guermouche, and Jean-Yves L'Excellent.

In the context of an ADT project (Action of Technological Development), Maurice Brémond (from Inria “SED” service in Grenoble) also worked part-time on the project, in particular on visualization tools helping researchers to analyze the behaviour of a parallel MUMPS execution.

More information on Mumps is available on http://mumps-solver.org . See also Section  6.20 of this report.