LoBoS 2 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. Although partially converted to desktop machines, LoBoS2 continues to be used for performing molecular modeling simulations as well as other computational biology applications. The original LoBoS2 configuration is listed below.

LoBoS2 Specifications

100 Compute Nodes	Dual PentiumIIs in a fully connected network Nodes assembled by PowerBox Systems Full Node Specs: Supermicro - P6DBE Motherboard Dual 450MHz 512K cache 256MB SDRAM 100MHz system bus 9.1 GB UltraIDE Drives with 512MB swap Packet Engines' (bought by Alcatel ) Gigabit Ethernet GNIC-II
4 Master Nodes	The masters were upgraded and are now shared with LoBoS4. The master nodes with which LoBoS2 started had: American Megatrends Inc. - MerlinDP Motherboard Dual 200MHz Pentium Pros 256K cache 1.2GB EIDE
1 3COM - CoreBuilder 9000	Used to support a gigabit backbone connecting LoBoS, LoBoS2, RAID server and desktop workstations.
1 Foundry Networks FastIron switch	16 and 24 10/100BaseT ports and a Gigabit uplink

A bank of LoBoS2 machines

Designed by Alexey Rostapshov. Information and HTML pages provided by: NIH Computational Biophysics Section