= 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**||**Deamons**||**Comments**|| ||User interface node||cluster.gcc.rug.nl||195.169.22.156||- (clients only)||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||''pbs_server''[[BR]]''maui''||Dedicated scheduler [[BR]] No user logins if this one is currently the production scheduler|| ||scheduler VM||scheduler02||195.169.22.190||''pbs_server''[[BR]]''maui''||Dedicated scheduler [[BR]] No user logins if this one is currently the production scheduler|| ||Execution node||targetgcc01||192.168.211.191||''pbs_mom''||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||''pbs_mom''||Redundant production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.|| ||Execution node||targetgcc03||192.168.211.193||''pbs_mom''||Redundant production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.|| ||Execution node||targetgcc04||192.168.211.194||''pbs_mom''||Redundant production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.|| ||Execution node||targetgcc05||192.168.211.195||''pbs_mom''||Redundant production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.|| ||Execution node||targetgcc06||192.168.211.196||''pbs_mom''||Redundant production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.|| ||Execution node||targetgcc07||192.168.211.197||''pbs_mom''||Redundant production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.|| ||Execution node||targetgcc08||192.168.211.198||''pbs_mom''||Redundant production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.|| ||Execution node||targetgcc09||192.168.211.199||''pbs_mom''||Redundant production node: only the default ''gcc'' and priority ''gaf'' queues run on this node.|| ||Execution node||targetgcc10||192.168.211.200||''pbs_mom''||Redundant 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 ==