Static vs Adaptive Routing
 

Static Routing vs Probing Adaptive Routing on 512-node Myri-10G cluster (32-port crossbars, Clos diameter-3). Benchmark is MPI_Sendrecv() of 1MB messages between random pairs of nodes. 5000 patterns, 20 iterations per pattern. Result  is the average bandwidth across all pairs for a given pattern, normalized to point-to-point bandwidth. To appear in Hot Interconnects 08.