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Application Domains
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Contracts and Grants with Industry
Other Grants and Activities

Section: Software


Participants : Maurice Brémond, Indranil Chowdhury, Guillaume Joslin, Jean-Yves L'Excellent [ correspondent ] , Bora Uçar.

Mumps (for MUltifrontal Massively Parallel Solver , see ) is a software package for the solution of large sparse systems of linear equations. 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, mainly in collaboration with ENSEEIHT-IRIT (Toulouse, France), lots of developments have been done, to enhance the software with more functionalities and integrate recent research work. Recent developments also involve the former Inria project ScAlAppliX since the recruitment of Abdou Guermouche as an assistant professor at LaBRI , while Cerfacs contributes to some research work.

Mumps implements a direct method, the multifrontal method, and is a parallel code for distributed memory computers; it is unique by the performance obtained and the number of functionalities available, among which we can cite:

Mumps is currently used by more than 1000 academic and industrial users, from a wide range of application fields (see Section  4.1 ). Notice that the Mumps users include:

The latest release is Mumps 4.9.2, available since November 2009 (see ). The most recent features available are: a parallel analysis phase based on the parallel graph partitioning tools pt-scotch or parmetis, the use of 64-bit integers to address large memories, improved performance and memory usage.


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