San Diego, March 4, 2009 -- While engineers at Calit2 and elsewhere on the UC San Diego campus continue to build a testbed for monitoring and assessing the energy efficiency of cyberinfrastructure, the supplier of a key hardware component - a 10 Gigabit Ethernet switch - is showcasing the project.
In a case study of Calit2's GreenLight Project, published this week, U.K.-based Quadrics, Ltd. notes that the "project run by the University of California, San Diego aims to measure the energy efficiency of new technologies such as 10 Gigabit Ethernet and their impact on cluster capacity and efficiency - and reduction of energy costs."
When it is built, the GreenLight Instrument will measure, monitor and help optimize the energy consumption of large-scale scientific applications from many different disciplines. "GreenLight uses 10 Gbps over dedicated optical fiber links, so end users move their clusters out of their faculty closets and into much greener configurations," GreenLight principal investigator Tom DeFanti is quoted saying.
GreenLight consists of an eco-friendly Sun Modular Datacenter container with 8 racks of servers. When fully populated, the servers will connect to seven edge switches via 1 Gbps links. The edge switches will, in turn, connect with 10 GigE uplinks to the Quadrics TG201-XA switch. The Quadrics switch "aggregates 10GE links from each of the edge switches. Five additional channel-bonded links will provide a 50-Gbps connection to the OptIPuter Core," notes the case study.
"The Quadrics TG201 24-port 10GiGE switch is a full-bisection bandwidth switch that enables us to richly connect the Greenlight Instrument into campus research networks," said Philip Papadopoulos, a San Diego Supercomputer Center scientist and co-PI on the GreenLight project. "We are driving DWDM optics directly from the switch to support as much as 80Gbit/sec on a single fiber pair."
"Thanks to UC San Diego, the technology sector will acquire valuable insights to reduce the costs of running a business and to boost efficiency," said Luigi Lavorgna, Quadrics Director. "The private sector can benefit enormously from efficient products that the evolution of information technology has now made available, and in particular with the adoption of 10 Gigabit Ethernet products such as Quadrics TG201 switches."
In general, the case study notes, 10 GigE technology is scalable (it "provides computationally-intensive applications room to scale"); uses servers better, "as the high bandwidth proved by 10 GigE reduces the inefficiencies of network bottlenecks"; and reduces the number of connections required to obtain high bandwidth.
Doug Ramsey, 858-822-5825, firstname.lastname@example.org