Mellanox Technologies announced today that the results of a recent High Performance Computing (HPC) cluster benchmark have demonstrated that InfiniBand delivers excellent scalability and superb benchmark results. During the test, peak processing performance levels of approximately one-half teraflop was measured on a 64-node Linux cluster.

In the benchmark test, which was performed by Linux Networx, a Linux-based InfiniBand cluster reportedly delivered near-linear efficiency as the cluster size was scaled to 64 nodes. A measured LINPACK performance result of 505 Gflops was achieved, and these results were attained without the opportunity to optimize the cluster. In a separate test cluster of 48-nodes the near-linear scalability efficiency was also demonstrated by the InfiniBand interconnect, the companies said.

The InfiniBand 10Gb/sec test cluster results are based on 48-nodes of Linux Networx Evolocity II (E2) with dual Intel processors, and a second separate cluster with 64-nodes of Linux Networx Evolocity II with dual Intel processors. Both used GNU Compiler 3.2, OSU MVAPICH 0.9, Mellanox MTPB23108 HCAs and a Mellanox InfiniScale 96-Port Switch. MPI software, MVAPICH (MPI for InfiniBand on VAPI Layer), was provided by the Department of Computer and Information Science at Ohio State University.

 
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