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| HAL : hal-00144243, version 1 |
| arXiv : 0705.0280 |
| Fiche détaillée |  Récupérer au format |
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| SIMULATION OF LASER PROPAGATION IN A PLASMA WITH A FREQUENCY WAVE EQUATION |
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Sylvain Desroziers 1Frédéric Nataf 2 |
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| (02/05/2007) |
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| The aim of this work is to perform numerical simulations of the propagation of a laser in a plasma. At each time step, one has to solve a Helmholtz equation in a domain which consists in some hundreds of millions of cells. To solve this huge linear system, one uses a iterative Krylov method with a preconditioning by a separable matrix. The corresponding linear system is solved with a block cyclic reduction method. Some enlightments on the parallel implementation are also given. Lastly, numerical results are presented including some features concerning the scalability of the numerical method on a parallel architecture. |
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| 1 : | Commissariat à l'Energie Atomique |
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CEA |
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| 2 : | Laboratoire Jacques-Louis Lions (LJLL) |
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CNRS : UMR7598 – Université Pierre et Marie Curie [UPMC] - Paris VI |
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| Domaine | : | Mathématiques/Analyse numérique |
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| laser plasma interaction – high performance parallel computing – domain decomposition method |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00144243, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00144243 | |
| oai:hal.archives-ouvertes.fr:hal-00144243 | |
| Contributeur : Frédéric Nataf | |
| Soumis le : Mercredi 2 Mai 2007, 14:22:12 | |
| Dernière modification le : Mercredi 2 Mai 2007, 14:50:06 | |
