Voltaire Grid interconnect solutions provide the high performance interconnect for four supercomputers on the 23rd edition of the Top500 list. These include:

• Mississippi State University in the number 158 position;
• Sandia National Laboratories in the number 211 position;
• Ohio Supercomputer Center in the number 272 position; and
• Sandia National Laboratories in the number 293 position.

The Maverick cluster at the ERC at Mississippi State University is comprised of 192 dual Xeon processor IBM eServer xSeries x335 servers running in a diskless configuration. Connected by Voltaire interconnect solutions, the cluster submitted performance results of 1.4 TFlops. Prior to deploying Voltaire's interconnect solutions, the ERC used Myrinet and Gigabit Ethernet for its cluster interconnect.

Two clusters from Sandia National Laboratories achieving high ranks in this issue of the Top500 leverage Voltaire interconnect solutions to gain accelerated throughput and enhanced overall performance for key supercomputing initiatives. The Catalyst cluster ranked at number 211 consists of 256 P4 Xeon nodes - 128 nodes are connected by InfiniBand - and submitted results of 1.076 TFlops. The number 293 ranked cluster from Sandia National Laboratories, which consists of 192 Dell PowerEdge Servers with dual Xeon processors - 96 nodes are connected by InfiniBand, submitted results of 882 Gigaflops.

The list's number 272 ranking cluster from Ohio Supercomputer Center, which consists of 256 dual Intel Xeon compute nodes - 128 nodes are connected by Voltaire's InfiniBand-based interconnect solutions, submitted results of 933 Gigaflops. This cluster is used to support the OSC's advanced MPI-based applications.

Voltaire Grid interconnect solutions consist of InfiniBand switch routers, IP routers and Fibre Channel routers, fabric management software, adapters and software that enable high performance applications to run on commodity server, storage and network resources that are virtualized into supercomputers. With outstanding price/performance, the solution improves the efficiency of server clusters and Grid computing environments.

The latest addition to Voltaire interconnect solutions is the Voltaire ISR 9288, the industry's largest modular InfiniBand switch for building high performance computing clusters and grids ranging from tens to thousands of nodes. The Voltaire ISR 9288 is available in July 2004.