Hal Computer Systems Ltd is said to have created a second cut of its ccNUMA Synfinity cross-bar switch system interconnect which can transfer data at 2.5Gbps, compared with Synfinity I’s 1.6Gbps. Hal parent, Fujitsu Ltd is already using Synfinity in a new series of GP7000F servers built around Hal’s Sparc64 implementation (CI No 3,532) and it is now building Synfinity II systems. The original GP7000F design is supposed to scale to 128 processors in SMP configurations. Synfinity provides a clustering mechanism over twisted pair cable. For comparison, Silicon Graphics Inc’s Spider interconnect operates at 1.6Gbps. Hal will describe the work at this week’s IEEE solid state circuits conference in San Francisco this week.