@article {icl:167, title = {Towards an Accurate Model for Collective Communications}, journal = {International Journal of High Performance Applications, Special Issue: Automatic Performance Tuning}, volume = {18}, number = {1}, year = {2004}, month = {2004-01}, pages = {159-167}, keywords = {lacsi}, author = {Sathish Vadhiyar and Graham Fagg and Jack Dongarra} }