CCC PC Cluster

System Description

The CCC PC complex is a growing collection of PCs connected via fast Ethernet. The cluster is intended to serve as a platform for parallel development and to run out-of-house codes.

The complex currently consists of one larger cluster named cluster3. There are currently 60 Pentium 4 machines in this third generation cluster, with clock speeds ranging from 2.5-3.2 GHz and physical memory ranging fom 1-2 GB. Scratch directories are called /tmp1 through /tmp9 with subdirectories for each legal user. The new 3 GHz machines are equipped with 120 GB hard drives, roughly 110 GB set aside for temp space. The intracluster network is switched at 100 Mbps, with 1 Gbps ethernet segments between cluster3 switches and the cluster servers (the main CCC network is 10 Mbps). These machines reside behind a gateway/firewall machine named zuul.

Our PC cluster has a new addition a 21-node dual Opteron parallel cluster. Each node has available to it 6 GB of memory. The nodes are connected together through a Gigabit network.

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