June 17-21, 2012

Hamburg, Germany

Contribution Details

Name: Performance Analysis & Prediction for Distributed Homogeneous Clusters
Time: Monday, June 18, 2012
4:30 PM - 5:00 PM
Room:   Hall C2.2
CCH - Congress Center Hamburg
Speakers:   Sabine Richling, University of Heidelberg
  Erich Strohmaier, LBNL
Abstract:   We present a new performance model based on the roofline concept for the analysis and performance prediction of distributed computing clusters. The background for our performance modeling is the 28 km InfiniBand interconnection between two bwGRiD clusters each consisting of 140 compute nodes in day-to-day production use. The model is used to analyze the MPI performance of inner-cluster communication compared to inter-cluster communication. We compare the new modeling results to our earlier stochastic model [RHKK2010] where we could give an estimate on the bandwidth requirements for doubling the performance of an application (LinPack in the simplest example). We will derive some bounds for the size of regions in a cluster and the scaling of the maximal speed-up for the region-region-interconnected network.  
  • Tutorial Pass
  • HPC in Asia Workshop Pass
  • Conference Pass
  • Conference Pass or Exhibition Pass
    Satellite Event marked with * requires separate pass
  • Morning & Afternoon Coffee Breaks
    Midday Lunch Break
Program may be subject to changes.