A Performance Comparison of HPCx and HECToR
Alan Gray, Mike Ashworth, Joachim Hein, Fiona Reid, Michèle Weiland, Tom Edwards, R. M. Johnstone, P. Knight · 2008
The results from running a range of synthetic and application benchmarks on the HPCx and HECToR systems are presented and compared. It is found that there is not much difference between the systems in terms of comparing similar numbers of processing cores, but HECToR is a much larger system with many more cores and a more scalable interconnect. Memory bandwidth is seen to be a bottleneck for certain applications on both systems, with HECToR more seriously affected. This is a Technical Report from the HPCx Consortium c © HPCx UoE Ltd 2008 Neither HPCx UoE Ltd nor its members separately accept any responsibility for loss or damage from the use of information contained in any of their reports or in any communication about their tests or investigations. 1