# Integration of ab initio nuclear physics calculations with optimization techniques

Title | Integration of ab initio nuclear physics calculations with optimization techniques |

Publication Type | Book Chapter |

Year of Publication | 2008 |

Authors | Sosonkina M, Sharda A, Negoita A, Vary JP |

Editor | Bubak M, VanAlbada GD, Dongarra J, Sloot PMA |

Book Title | Computational Science - Iccs 2008, Pt 1 |

City | Berlin |

Publisher | Springer-Verlag Berlin |

Volume | 5101 |

Pages | 833-842 |

Series Title | Lecture Notes in Computer Science |

ISBN Number | 0302-9743978-3-540-69383 |

Accession Number | ISI:000257188800085 |

Keywords | derivative-free optimization, mfdn, No Core Shell Model, VTDIRECT95 |

Abstract | Optimization techniques are finding their inroads into the field of nuclear physics calculations where the objective functions are very complex and computationally intensive. A vast space of parameters needs searching to obtain a good match between theoretical (computed) and experimental observables, such as energy levels and spectra. In this paper, we propose a design integrating the ab initio nuclear physics code MFDn and the VTDIRECT95 code for derivative-free optimization. We experiment with the initial implementation of the design showing good matches for several single-nucleus cases. For the parallel MFDn code, we determine appropriate processor numbers to execute efficiently a multiple-nuclei parameter search. |