%0 Journal Article %J International Journal of High Performance Applications, Special Issue: Automatic Performance Tuning %D 2004 %T Towards an Accurate Model for Collective Communications %A Sathish Vadhiyar %A Graham Fagg %A Jack Dongarra %K lacsi %B International Journal of High Performance Applications, Special Issue: Automatic Performance Tuning %V 18 %P 159-167 %8 2004-01 %G eng