Linux Cycles

  • Instructional Unix Cycle Servers: The Instructional Linux Cluster is known as "Attu". The cluster is comprised of seven systems. The first cohort is four Dell PowerEdge R430s, each with two Intel Xeon E5-2670v3 CPUs (2.3GHz,30M Cache,9.60GT/s QPI,12C/24T) for a total of 48 cores and 128GB of RAM per box. The 2nd more modern cohort is comprised of three three Supermicro systems, each with two Intel Xeon Gold 6132 (2.6GHz, 2666 MT/s, 14C/28T) for a total of 56 cores and 192GB per box. You can simply ssh to and be connected (at random) to one of the seven servers. Alternatively you can directly connect to attu[1-7] You can glimpse the relative load across the cluster here: If you need to have long running jobs (e.g., hours/days of CPU time), please inform support@cs of your requirements/intentions. Otherwise it is possible that your jobs may be classified as "runaways" and will be killed (at worst) and stopped (at best) until it is made clear that they are actually performing useful work.
  • Research Unix Cycle Servers:Members of the CSE research community needing general UNIX cycles can use any of the research Linux cycle servers:,, and Process limits are governed by Cgroups. Please compute responsibly. is available as an administrative login server.
  • Contact support@cs for additional Linux servers designed for remote access


Any application with printing interface using IPP protocol on any network can use this service provided that valid CS.WASHINGTON.EDU Kerberos credentials are used to run the application. (However, only research account holders can print to research printers.)

[+] CUPS Print Servers and Configuration

[+] Printing from Terminal

Network File Access

The recommended way of connecting to CSE files and folders from a non-lab managed machine is via the fuse-sshfs package (most applicable directories are already exported on lab-managed machines). It is also possible to request exports of a specific directory to a local desktop by emailing support@cs.

[+] Mapping Your Home Directory

[+] Mapping a Project Directory

[+] High-Level File System Structure

Remote Access

We provide ways that you can telecommute and use CSE resources and software. If your destination is Unix, we offer several packages for connecting, including: OpenSSH and XTerm for X support. If your destination is Windows, Remote Desktop Protocol (RDP) is the current (and only) supported method.

[+] Accessing Remote Windows Machines

[+] Accessing Remote Linux Machines


Linux Virtual Machines or "Home VM"

The CSE lab prepares virtual machine images that, in a rough sense, allow you to take a lab Windows or Linux workstation home with you. More details can be found HERE.



The CSE Linux cycle, admin, and desktop machines run CentOS Linux as their OS. CentOS is a community-supported open source project, which produces a free derivative of the RedHat Enterprise Linux (RHEL) distribution.

CentOS releases have a multi-year life cycle. Updates for security and bug fixes are frequently provided throughout the release cycle and periodic 'point releases' may introduce new features and rebase key software components to new versions.

We install a standard set of packages each release. The instructional software is usually a superset of what is installed on the research systems, since they have additional 'courseware', requested by instructors, which varies each quarter.

Software updates and security fixes are routinely applied, as received from the upstream distribution.

Only CS Lab staff have root access. NFS file access from lab-managed file servers is available only to lab-managed Unix systems.

For more details see CentOS Linux at CSE