HP XC System 3.x Software - Manual (Page 24)

$ head /proc/cpuinfo
Table 1-1 presents the representative output for each of the platforms. This output may differ
according to changes in models and so on.
Table 1-1 Determining the Node Platform
Partial Output of /proc/cpuinfo Platform
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 3
model name : Intel(R) Xeon(TM) CP3000
processor : 0
vendor_id : AuthenticAMD
cpu family : 15
model : 5
model name : AMD Opteron(tm) CP4000
processor : 0
vendor : GenuineIntel
arch : IA-64
family : Itanium 2
model : 1 CP6000
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 6
model name : Intel(R) Xeon(TM) CPU 3.73GHz CP300BL
(Blade-only
XC systems)
Note:
The /proc/cpuinfo file is dynamic.
1.1.4 Node Specialization
The HP XC system is implemented as a sea-of-nodes. Each node in the system contains the same
software image on its local disk. There are two types of nodes in the system — a
head node and
client nodes.
head node
The node is installed with the HP XC system software first — it is used to
generate other HP XC (client) nodes. The head node is generally of interest
only to the administrator of the HP XC system.
client nodes All the other the nodes that make up the system. They are replicated from
the head node and are usually given one or more specialized
role s to perform
various system functions, such as logging into the system or running jobs.
The HP XC system allows for the specialization of client nodes to enable efficient and flexible
distribution of the workload. Nodes can be assigned one or more specialized roles that determine
how a particular node is used and what system services it provides. Of the many different roles
that can be assigned to a client node, the following roles contain services that are of special interest
to the general user:
login role
The role most visible to users is on nodes that have the login role. Nodes
with the login role are where you log in and interact with the system to
perform various tasks. For example, once logged in to a node with login role,
you can execute commands, build applications, or submit jobs to compute
nodes for execution. There can be one or several nodes with the login role
in an HP XC system, depending upon cluster size and requirements. Nodes
with the login role are a part of the Linux Virtual Server ring, which
24 Overview of the User Environment