Publications

Thesis

Désiré NUENTSA WAKAM, Parallelism and robustness in hybrid solvers for large linear systems : Application to design optimization in fluid dynamics, PhD thesis, University of Rennes I, December 2011

Papers

  1. Désiré NUENTSA WAKAM and Jocelyne ERHEL, Parallelism and robustness in GMRES with the Newton basis and the deflated restarting, ETNA, to appear, Preprint.
  2. Désiré NUENTSA WAKAM, Jocelyne ERHEL and William D. GROPP, Parallel Adaptive Deflated GMRES, Domain Decomposition Methods in Science and Engineering XX, Lecture Notes in Computational Science and Engineering Volume 91, 2013, pp 631-638
  3. Désiré NUENTSA WAKAM and François PACULL, Memory Efficient Hybrid Algebraic Solvers for Linear Systems Arising from Compressible Flows, Computers and Fluids, Vol. 80, pp. 158-167, 2013
  4. Désiré NUENTSA WAKAM and Guy-Antoine ATENEKENG, Parallel GMRES with a multiplicative Schwarz preconditioner, ARIMA Rev. Afr. Rech. Inform. Math. Appl., Vol 14, 2011.
  5. Laura GRIGORI, Désiré NUENTSA WAKAM and Hua XIANG, Saving flops in LU based shift-and-invert, Journal of Computational and Applied Mathematics, Volume 234 Issue 12, October, 2010, Also Research report INRIA RR-6553.
  6. Désiré NUENTSA WAKAM, Jocelyne ERHEL, Edouard CANOT and Guy-Antoine ATENEKENG, A comparative study of some distributed linear solvers on systems arising from fluid-dynamics simulations, B. Chapman; F. Desprez; G. Joubert; A. Lichnewsky; F. Peters & T. Priol, (ed.) Parallel Computing: from Multicores and GPU's to Petascale (proceedings of PARCO'09) IOS Press, pp. 51-58, 2010.
  7. Désiré NUENTSA WAKAM, Jocelyne ERHEL and Edouard CANOT, Parallélisme à deux niveaux dans GMRES avec un préconditionneur Schwarz multiplicatif (in french), E. Badouel; A. Sbihi & I. Lokpo,(ed.) proceedings of CARI'2010, pp. 189-196. 2010

Talks in International conferences and workshops

  1. Parallel Deflated GMRES with the Newton basis, SIAM Conference on Applied Linear Algebra, June 2012, Valencia, Spain
  2. Robustness in hybrid algebraic solvers for large linear systems, 23rd International Conference on Parallel Computational fluid dynamics, May 2011, Barcelona, Spain
  3. GMRES with Schwarz-based preconditioners : challenge of robustness and parallelism, 20th International Conference on domain decomposition methods, February 2011, San Diego, USA.
  4. Parallel implementation of the deflated GMRES in the PETSc package, 4th Workshop of the Joint laboratory on Petascale Computation, November 2010, Urbana-Champaign, USA.
  5. Two levels of parallelism in GMRES with a Multiplicative Schwarz preconditioner, CARI, October 2010, Yamoussoukro, Ivory Coast.
  6. GMRES with deflated restarting and multiplicative Schwarz preconditioner, 3rd Workshop of the Joint laboratory on Petascale Computation, June 2010, Bordeaux, France.
  7. Mixing direct and iterative linear solvers for the solution of large linear systems, CERFACS Sparse days, Juin 2009, Toulouse, France.
  8. A short comparison of some linear solvers, Workshop on numerical methods and north-south cooperation, March 2009, Yaoundé, Cameroon.