We use AFS file sharing and Condor batch computing software to implement a high throughput Linux computing environment on diverse hardware, including:

	CPU	CPUS/class	kSI2K/class	dCache/class (TB)
g3	2 x 2.4 GHz Xeon	54	64.80	-
g4	2 x 2.8 GHz Xeon	38	53.20	-
g5	2 x 2.8 GHz Xeon	38	50.40	-
g6	2 x 2.8 GHz Xeon	40	56.00	-
g7	2 x 3.0 GHz Xeon	50	80.00	40.5
g8	2 x 3.0 GHz Xeon	12	19.20	6
g9	4 x 1.8 GHz Opteron	180	207.00	45
g10	4 x 1.8 GHz Opteron	96	110.00	-
g12	8 x 2.6 GHz Xeon	256	691.20	72
g13	8 x 2.3 GHz Xeon	32	n/a	-
g14	8 x 3.0 GHz Xeon	256	1200	128
s5	2 x 2.8 GHz Xeon	18	-	40.50
	Total	~950	~2500	~350

Opportunistic computing resources from the Grid Laboratory of Wisconsin and Computer Science Department provide the potential for utilizating a total of over 2300 Linux CPUs.

Sun Solaris and Linux computers are used to provide domain name service, backups, email, spam filtering, centralized printing and web hosting. We also have a small cluster of HP workstations running HP-UX for CAD work.

Our Grid Network is implemented using a Cisco Catalyst 3750G-16TD switch stack (10 Gbps uplink to the Internet) and our Staff Network is implemented using a Cisco Catalyst 4503 switch (2 Gbps uplink) at the core, with gigabit ethernet over fiber trunks fanning out to Cisco Catalyst 3750 switches.

Our older compute servers are 1U rack-mount systems with Supermicro or Intel motherboards, dual Xeon CPUs and gigabit ethernet. Our newer generations of compute servers are 1U rack-mount 1.8 GHz dual/dual (four CPU) Opteron based Supermicro systems with gigabit ethernet.

Our storage servers are dual Xeon CPU based systems with 5 TB Apple Xserve RAIDs attached via Apple's PCI-X fibre channel card and 80 systems with 1 TB of ordinary ATA100 disk.