Cedar/Cypress

Hardware

• Servers for Scientific Applications such as Gaussian, Amber, and custom parallel code
• Machine Names: cedar.isis.unc.edu (login host) and cypress.isis.unc.edu (compute host)
• cedar: SGI Altix 350 - 8 Intel Itanium2 Processors (1500MHz), each with 16k L1 cache for data, 16k L1 cache for instructions, 256k L2 cache, 4MB L3 cache, 1GB of Shared Memory (8GB total memory), 1 CD-ROM drive, two 70 GB SATA System Disks; local JBOD SCSI disks comprising a 430 GB XFS filesystem for local scratch/temp needs.
• cypress: SGI Altix 3700bx2 - 128 Intel Itanium2 Processors (1600MHz), each with 16k L1 cache for data, 16k L1 cache for instructions, 256k L2 cache, 6MB L3 cache, 4GB of Shared Memory (512GB total memory), 1 CD-ROM drive, two 70 GB SCSI System Disks; local fiber-channel attached SCSI drive array comprising a 4.5 TB XFS filesystem for local scratch/temp needs.
• Access to 10 TB of NetApp NAS RAID array used for scratch space, mounted as /nas and /netscr

Operating System

• RHEL 3 with Propack 3, Service Pack 3
• Intel Compilers with Math Kernel Libraries

System Maintenance Guidelines

• System maintenance is scheduled when necessary with as much notice as possible, typically a month in advance.
• Scheduled maintenance is announced in advance with a Change Notice.
• Unscheduled repairs may involve little or no advance notice depending on the nature of the problem. An Emergency or Follow Up Change Notice will be issued as soon as possible.

System Policies

• The /netscr file system is not backed up.
• The local /scr file system is not backed up.
• When the /netscr file system has reached 92% of its capacity, it will be purged of old files until it becomes 85% utilized.

System Support Personnel

• Larry Mason, System Administrator