%0 Conference Paper
%B Proceedings of 2011 Particle Accelerator Conference
%D 2011
%T Performance Analysis on the IBM Blue Gene/P for Wakefield Calculations
%A M. S. Min
%A P. F. Fischer
%X Accurate and efficient simulations will significantly reduce the cost and the risk in the design process for various applications in accelerator design. We improved capability of the Argonne-developed high-fidelity wakefield simulation code, NekCEM, by upgrading pre-setup and communication subroutines for high-performance simulations beyond petascale. We present a detailed study of parallel performance of NekCEM on the IBM Blue Gene/P at Argonne. We demonstrate strong scaling up to P=131,072 cores using up to more than 1.1 billion grid points with the total number of elements up to E=273,000 and N=15 which gives 75% efficiency at 8,530 grid points per core compared to the base case of P=16,384 cores.
%B Proceedings of 2011 Particle Accelerator Conference
%I PAC'11 OC/IEEE
%C New York, NY, USA
%8 04/2011
%G eng
%U http://accelconf.web.cern.ch/AccelConf/PAC2011/papers/wep137.pdf
%1 http://www.mcs.anl.gov/papers/P1870.pdf