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Hot-Spot Avoidance With Multi-Pathing Over InfiniBand: An MPI Perspective
2007
Seventh IEEE International Symposium on Cluster Computing and the Grid (CCGrid '07)
Large scale InfiniBand clusters are becoming increasingly popular, as reflected by the TOP 500 Supercomputer rankings. At the same time, fat tree has become a popular interconnection topology for these clusters, since it allows multiple paths to be available in between a pair of nodes. However, even with fat tree, hot-spots may occur in the network depending upon the route configuration between end nodes and communication pattern(s) in the application. To make matters worse, the deterministic
doi:10.1109/ccgrid.2007.60
dblp:conf/ccgrid/VishnuKMMNP07
fatcat:jlbhdiajkja7fmzpjm253nlqga