Title :
GdfidL: a finite difference program with reduced memory and CPU usage
Author_Institution :
Tech. Univ. Berlin, Germany
Abstract :
Two new field solvers based on the FDTD algorithm are described. One solver computes resonant fields in loss-free structures, the other computes time dependent fields, scattering parameters and wake potentials in lossy or loss-free structures. The program uses linked lists instead of three dimensional arrays to model the computational volume. The main advantage of this approach is: Grid cells are only needed in regions, which are not filed with electric or magnetic conducting materials. This may result in an appreciable reduction of memory and CPU usage. The modeling via the linked lists is described in detail and some examples of calculated realistic geometries are given
Keywords :
beam handling techniques; finite difference methods; high energy physics instrumentation computing; particle accelerators; FDTD algorithm; GdfidL program; computational volume; field solvers; finite difference program; grid cells; linked lists; loss-free structures; lossy structures; particle accelerators; reduced CPU usage; reduced memory; resonant fields; scattering parameters; time dependent fields; wake potentials; Computational modeling; Conducting materials; Dielectric materials; Difference equations; Eigenvalues and eigenfunctions; Finite difference methods; Geometry; Maxwell equations; Resonance; Scattering parameters;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.751304
