Abstract
We developed a data parallel code written in High Performance Fortran for simulating magnetized fluid flow in thermonuclear fusion devices and solar coronal loops. We compare execution times on a variety of architectures for physically realistic applications. In particular, we quote times measured for high resolution runs on a vector (Cray C90) and several distributed memory parallel architectures (cluster of workstations, CM-5, IBM SP2”, Cray T3D, Cray T3E). On all parallel platforms, we demonstrate almost linear speedup.
Our implementation is designed to study small-scale phenomena occuring on intermediate and long time scales in magnetohydrodynamic simulations. Examples for both are provided: resonantly driven coronal loops where dissipative layers form on the Alfvén time scale, and cylindrical magnetohydrodynamic configurations which are unstable on a resistive time scale with respect to helical deformations.
Research Associate of the Belgian National Fund for Scientific Research (N.F.W.O.)
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© 1998 Springer-Verlag Berlin Heidelberg
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Keppens, R., Poedts, S., Goedbloed, J.P. (1998). Data parallel simulations of the magnetohydrodynamics of plasma loops. In: Sloot, P., Bubak, M., Hertzberger, B. (eds) High-Performance Computing and Networking. HPCN-Europe 1998. Lecture Notes in Computer Science, vol 1401. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0037150
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DOI: https://doi.org/10.1007/BFb0037150
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