Abstract
The cubic KleinGordon equation is a simple but nontrivial
partial differential equation whose numerical solution has the main building blocks required for the solution of many other partial differential equations. In this study, the library 2DECOMP&FFT is used in a Fourier spectral scheme to solve the KleinGordon equation and strong scaling of the code is examined on thirteen different machines for a problem size of 512^3. The results are useful in assessing likely performance of other parallel fast Fourier transform based programs for solving partial differential equations. The problem is chosen to be large enough to solve on a workstation, yet also of interest to solve quickly on a supercomputer, in particular for parametric studies. Unlike the Linpack benchmark, a high ranking will not be obtained by simply building a bigger computer.
Original language  English 

Title of host publication  HPC '15 Proceedings of the Symposium on High Performance Computing 
Place of Publication  San Diego, U. S. A. 
Publisher  Society for Computer Simulation International 
Pages  182191 
Number of pages  10 
ISBN (Print)  9781510801011 
Publication status  Published  12 Apr 2015 
Keywords
 cs.PF
 cs.DC
 math.NA
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Equipment

High Performance Computing (HPC) Facility
Steven Chapman (Manager)
University of BathFacility/equipment: Facility