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**Target config**
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lightweight nodes (40 3.0 ghz or 60 2.0 ghz)  (160 or 240 cores)
  * 2gb RAM
  * single HD
  * two dual-core processors (high efficiency for opteron)
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4 heavyweight nodes (32 cores)
  * 2 with 16gb RAM 2 with 32gb RAM
  * single HD
  * two quad-core processors (four dual-core processors for opteron)
  * 1 TB total high performance disk 
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1 head node\\
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1 I/O node
  * HBA to attach to SAN storage
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Mass storage
  * 10 TB lower performance general storage on SAN (via fiber to IO node, NFS to lightweight nodes)
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Interconnectivity
  * 16 nodes interconnected via infiniband, at a minimum (all heavyweight nodes + rest lightweight nodes)
  * remainder interconnected via gig-E 

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