Ravana is the 28 nodes cluster. It includes 27 dual-CPU AMD Opterons: 1.4GHz (10 nodes - Opteron 240), 1.6GHz (15 nodes - Opteron 242), and dual-core 2.2GHz (2 nodes - Opteron 275) cluster (150896.54 bogomips total) with total 167GB of RAM (8GB main node, 5GB per Opteron 240 node, 6GB per Opteron 242 node, 12GB per Opteron 275 node) and 5.2+1.6 TB of RAID space (RAID6+RAID5 accordingly, raw space 6TB+2TB) served by raider node via bonded Gigabit Ethernet interfaces. Besides AMD ia32 compatible nodes it includes a single dual-CPU Itanium 2 node (900MHz) with 8GB of RAM (it is present in the network under name itanix).
All nodes run Debian GNU/Linux distribution to enjoy the beauty of a "right" package management and easy updates.
FAI was used for effective automatic cluster installation. Further configuration of the cluster is maintained using cfengine v2 which helps to bring peace of mind in system administration. BackupPC is used to perform daily backups of the cluster onto NAS RAID5.
Torque (AKA PBS)+Maui Scheduler are used to utilize the power of the cluster. MPI and PVM options also are present to provide trully parallel computing power.
New accounts are opened with a permission from Dr. S. Hanson.
After you get permission from Dr.Hanson (CC SysAdmin) you would need to email SysAdmin (please include next items as attachments, do not cut-paste into the email text)
Send the form and the key in a plain text format, please no M$ Word, nor CrapOffice documents.
Upon your account creation please go through Ravana Usage Instructions/Tips/Tricks. Changes to this page can be monitored via a news feed. Before asking any question please use "Search" on the Instructions page to see if the issue was discussed before.