= GCC cluster =

The GCC has its own 480 core cluster. The main workhorses are 10 servers with 48 cores, 256 GB, 1 GBit management NIC and a 10 GBit NIC for a dedicated IO connection to a 2 PB shared GPFS for storage. 

== Servers ==

||**Function**||**DNS**||**IP**||**Comments**||
||User interface node||cluster.gcc.rug.nl||195.169.22.156||Login node to submit and inspect jobs. [[BR]] Relatively powerful machine. [[BR]] Users can run code outside the scheduler for debugging purposes.||
||scheduler VM||scheduler01||195.169.22.214||Runs Torque's ''pbs_server'' resource manager and the ''maui'' scheduler.||
||scheduler VM||scheduler02||195.169.22.190||Runs Torque's ''pbs_server'' resource manager and the ''maui'' scheduler.||
||Execution node||targetgcc01||192.168.211.191||Runs Torque's ''pbs_mom'' [[BR]] Dedicated test node: only the ''test-short'' and ''test-long'' queues run on this node. [[BR]] Crashing the test node shall not affect production!.||
||Execution node||targetgcc02||192.168.211.192||Runs Torque's ''pbs_mom'' [[BR]] Production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.||
||Execution node||targetgcc03||192.168.211.193||Runs Torque's ''pbs_mom'' [[BR]] Production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.||
||Execution node||targetgcc04||192.168.211.194||Runs Torque's ''pbs_mom'' [[BR]] Production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.||
||Execution node||targetgcc05||192.168.211.195||Runs Torque's ''pbs_mom'' [[BR]] Production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.||
||Execution node||targetgcc06||192.168.211.196||Runs Torque's ''pbs_mom'' [[BR]] Production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.||
||Execution node||targetgcc07||192.168.211.197||Runs Torque's ''pbs_mom'' [[BR]] Production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.||
||Execution node||targetgcc08||192.168.211.198||Runs Torque's ''pbs_mom'' [[BR]] Production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.||
||Execution node||targetgcc09||192.168.211.199||Runs Torque's ''pbs_mom'' [[BR]] Production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.||
||Execution node||targetgcc10||192.168.211.200||Runs Torque's ''pbs_mom'' [[BR]] Production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.||


== PBS software / flavour ==

The current setup uses the resource manager **Torque 2.5.12** combined with the scheduler **Maui 3.3.1**.

=== Maui ===

Runs only on the schedulers with config files in
{{{
/usr/local/maui/
}}}

=== Torque ===

Torque clients are available on all servers.[[BR]]
Torque's pbs_server deamon runs only on the schedulers.[[BR]]
Torque's pbs_mom daemon runs only on the execution nodes where the real work is done.[[BR]]
Torque config files are installed in
{{{
/var/spool/torque/
}}}

== Dual scheduler setup ==

== Installation details ==