2-D R-Matrix Propagation: A Large Scale Electron Scattering Simulation Dominated by the Multiplication of Dynamically Changing Matrices

Abstract : We examine the computational aspects of propagating a global R-matrix, ℜ, across sub-regions in a 2-D plane. This problem originates in the large scale simulation of electron collisions with atoms and ions at intermediate energies. The propagation is dominated by matrix multiplications which are complicated because of the dynamic nature of ℜ, which changes the designations of its rows and columns and grows in size as the propagation proceeds. The use of PBLAS to solve this problem on distributed memory HPC machines is the main focus of the paper. Topics: Large Scale Simulations in all areas of Engineering and Science; Numerical Methods; Parallel and Distributed Computing.
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Lecture notes in computer science, springer, 2003, 2565, pp.354-367. 〈10.1007/3-540-36569-9_23〉
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Contributeur : Ist Rennes <>
Soumis le : mardi 17 avril 2012 - 16:40:24
Dernière modification le : lundi 30 avril 2018 - 17:38:02

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Timothy Stitt, Stan Scott, Penny Scott, Phil Burke. 2-D R-Matrix Propagation: A Large Scale Electron Scattering Simulation Dominated by the Multiplication of Dynamically Changing Matrices. Lecture notes in computer science, springer, 2003, 2565, pp.354-367. 〈10.1007/3-540-36569-9_23〉. 〈hal-00688459〉

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