|The BOBCAT Cluster|
|[Systems] [EPCC Home]|
BOBCAT ("Budget-Optimised Beowulf Cluster using Affordable Technology") is a small (16-node) Beowulf-type PC cluster using commodity hardware components intended to develop expertise in the area and provide an in-house computing resource for staff and TRACS visitors. In order to keep the costs low, BOBCAT uses an Ethernet-based cluster interconnect and mid-range processors. Construction of the cluster commenced in February 2000 and BOBCAT was fully operational by the end of April 2000. The total cost of the cluster hardware was under £16000.
The cluster consists of 16 diskless compute nodes plus one front-end/NFS
server system. The cluster interconnect consists of two 100base-TX Fast
Ethernets, one for system traffic (NFS etc.) and the other for
application traffic (eg. MPI).
The compute nodes each comprise a 650MHz AMD
processor on a Gigabyte
motherboard, with 128Mb of ECC SDRAM(*) and two 3Com 3C905B Fast Ethernet
cards. The system and application Ethernets employ a 3Com SuperStack II hub
and switch respectively. All nodes run Red Hat Linux, the diskless compute
nodes using the
Etherboot network booting software. The cluster is housed in
19in rack-mount enclosures mounted in two cannibalised Meiko M60E cabinets.
(*) currently awaiting upgrade to 256Mb.
BOBCAT has the following compilers installed: gcc/g++ 2.91.66, g77 0.5.24 and Portland Group PGF77/PGF90/PGHPF 3.1. The PVM 3.4.3 and MPICH 1.2.0 message-passing libraries are also installed, the latter configured for gcc, g++, PGF77 and PGF90.
|Webpage maintained by email@example.com|