LoBoS and LoBoS2 Supercomputers' Configuration
LoBoS2 is an implementation of a Beowulf -class supercomputer. It consists of 100 dual PentiumII computers connected with Gigabit and Fast Ethernet networks. LoBoS2 has been implemented with gigabit communications paths in a fat tree topology.
100

 Compute Nodes:Dual PentiumIIs in a fully connected network
Nodes assembled by PowerBox Systems. (ZERO defects so far!)
Supermicro P6DBE Motherboard
450MHz, 512K cache, 256MB SDRAM, 100MHz system bus
9.1 GB UltraIDE Drives including 512MB swap space
1 Packet Engines Gigabit Ethernet GNIC-II
4 Master Nodes:Dual Processor PentiumPros
AMI MerlinDP 200MHz, 256K cache,1.2 GB EIDE

New Master Nodes: Currently being installed
Supermicro 450MHz, 512K cache,9GB EIDE
RAID Storage: New master nodes are Configured with 1.2 Terabytes (total) of RAID5 Storage from RAIDZONE: using SmartCans
1 3COM CoreBuilder 9000: Used to support a gigabit backbone connecting LoBoS, LoBoS2, RAID server and desktop workstations.
4 Foundry Networks FastIron switches:
16 and 24 10/100BaseT ports and a Gigabit uplink
 


LoBoS is currently being turned into desktop machines but continues to be in production use performing molecular modeling simulations and other computational biology applications. Seventeen compute nodes have been converted to desktop machines. LoBoS is currently comprised of a ring of 47 dual-processor Pentium Pro 200 MHz compute nodes (94 processors). The compute nodes have point-to-point connections supporting simultaneous data transfer over the network's ring topology. Benchmarks of the current configuration are also available.
47

 Compute Nodes:Dual Processor PentiumPros in a ring topology
AMI MerlinDP
Nodes assembled by PowerBox Systems. (64 nodes with ZERO defects !)
200MHz, 256K cache, 128MB RAM, 1.2 GB EIDE Drives with 256MB swap
3 Fast Ethernet D-Link DFE500 NICs (N+1, N-1 in ring, user network)
4 Master Nodes:Shared with LoBoS2
4 Cisco Series 300 Fast Ethernet Hub:Used for Job initialization and I/O only
96 10/100 ports w/Network management module for pulse
1 Foundry Networks FastIron switch: Used to break the I/O network into 4 collision domains and connect to gigabit backbone
16 and 24 10/100BaseT ports and a Gigabit uplink