On the parallel scalability of hybrid linear solvers for large 3D problems

Abstract : Large-scale scientific applications and industrial simulations are nowadays fully integrated in many engineering areas. They involve the solution of large sparse linear systems. The use of large high performance computers is mandatory to solve these problems. The main topic of this research work was the study of a numerical technique that had attractive features for an efficient solution of large scale linear systems on large massively parallel platforms. The goal is to develop a high performance hybrid direct/iterative approach for solving large 3D problems. We focus specifically on the associated domain decomposition techniques for the parallel solution of large linear systems. We have investigated several algebraic preconditioning techniques, discussed their numerical be- haviours, their parallel implementations and scalabilities. We have compared their performances on a set of 3D grand challenge problems.
Complete list of metadatas

Cited literature [97 references]  Display  Hide  Download

https://tel.archives-ouvertes.fr/tel-00347948
Contributor : Séverine Toulouse <>
Submitted on : Wednesday, December 17, 2008 - 11:31:05 AM
Last modification on : Tuesday, March 22, 2016 - 1:20:00 AM
Long-term archiving on : Tuesday, June 8, 2010 - 5:32:27 PM

Identifiers

  • HAL Id : tel-00347948, version 1

Collections

Citation

Azzam Haidar. On the parallel scalability of hybrid linear solvers for large 3D problems. Mathematics [math]. Institut National Polytechnique de Toulouse - INPT, 2008. English. ⟨tel-00347948⟩

Share

Metrics

Record views

275

Files downloads

335