A typical HP XC system contains from 5 to 512 nodes. To allow
systems of a greater size, an HP XC system can be arranged into a
large-scale configuration with up to 1024 compute nodes (HP might consider
larger systems as special cases).
This configuration arranges the HP XC system as
a collection of hardware regions that are tied together through a ProCurve
2848 Ethernet switch.
The nodes of the large-scale system are divided as equally
as possible between the individual HP XC systems, which are known
as regions. The head node for a large-scale HP XC system
is always the head node of region 1.
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