HP XC System Software Installation Guide Version 3.2

• Dynamic Host Control Protocol (DHCP) server (dhcp)
• HPTC file system server (hptc_cluster_fs)
• License manager (hptc-lm)
• InfiniBand switch monitor (ibmon)
• Image server (imageserver)
• HP MPI interconnect setup (mpiic)
• Myrinet switch monitor (gmmon)
• NFS server (nfs_server)
• Network time protocol (ntp)
• Power daemon server (pwrmgmtserver)
• Quadrics switch monitor (swmlogger)
The configuration and management database, in which all management configuration information
is stored, runs on a node with this role.
The power manager service manages the powering on and off of nodes in the system.
The MPI interconnect settings are managed by nodes running this role.
The image server service provides images from the SystemImager tool to all client nodes.
The NTP server synchronizes the time on all nodes.
The license manager service enables some software components in the system when a valid
license is present.
F.3.13 Resource Management Role
Nodes with the resource_management role provide the services necessary to support SLURM
and LSF.
On systems with fewer than 63 total nodes, this role is assigned by default to the head node. On
large-scale systems with more than 64 nodes, this role is assigned by default to the node with
the internal node name that is one less than the head node. For example, if the head node is n256,
node n255 is assigned as the resource manager. On large-scale systems, the
resource_management role is exclusive; the node with this role has no other roles assigned
to it.
The configuration and management database names of the services provided by this role are as
follows:
• LSF master node (lsf)
• SLURM central control service (slurm)
• Resource Management System (RMS) (rm)
You can assign this role to multiple nodes in the cluster to provide support for failover. Multiple
nodes may have this role defined, but only one is active at a time. If the SLURM central control
service fails on the active node, the daemon will be started on another node with the resource
management role.
214 Description of Node Roles, Services, and the Default Configuration