Performance analysis and simulation of an equivalent model of serial queues for computer networks
MOAS'07 Proceedings of the 18th conference on Proceedings of the 18th IASTED International Conference: modelling and simulation
Performance analysis and simulation of an equivalent model of serial queues for computer networks
MS '07 The 18th IASTED International Conference on Modelling and Simulation
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We evaluate the performance of a Fast Ethernet network configured with a single switch, a single hub, a combination of hubs and switches, and a 4x4 2D torus topology in a testbed cluster of commodity Pentium Pro PCs. An MPI collective communication benchmark and the NAS Parallel Benchmarks version 2.2 (NPB2) show that the torus network performs best for all sizes that we were able to test (up to 16 nodes). For larger networks the Ethernet switch outperforms the hub, though its performance is far less than peak. The hub/switch combination tests indicate that the NAS parallel benchmarks are relatively insensitive to hub densities of less than 7 nodes per hub.