OSCusage is command developed at OSC for use on OSC's systems.  It allows for a user to see information on their project's current RU balance, including which users and jobs incurred what charges.

Glenn Retirement

Glenn Cluster Retired: March 24, 2016

The Glenn Cluster supercomputer has been retired from service to make way for a much more powerful new system. As an OSC client, the removal of the cluster will result in work being added to the heavy workload being handled by Oakley or Ruby, potentially impacting you.

Migrating jobs from Glenn to Oakley or Ruby

This page includes a summary of differences to keep in mind when migrating jobs from Glenn to one of our other clusters.


Most Oakley nodes have 12 cores and 48GB memory. There are eight large-memory nodes with 12 cores and 192GB memory, and one huge-memory node with 32 cores and 1TB of memory. Most Ruby nodes have 20 cores and 64GB of memory. There is one huge-memory node with 32 cores and 1TB of memory. By contrast, most Glenn nodes have 8 cores and 24GB memory, with eight nodes having 16 cores and 64GB memory.

LAMMPS 7Dec15 now available

Wednesday, February 3, 2016 - 12:45pm

LAMMPS stable version 7Dec15 has been installed on Glenn, Oakley, and Ruby.  Usage is via the modules lammps-7Dec15 on Glenn and lammps/7Dec15 on Oakley and Ruby.  For information on installation details, such as, available packages, see the output of the respective module help command, e.g.:  module help lammps/7Dec15


The Schrodinger molecular modeling software suite includes a number of popular programs focused on drug design and materials science but of general applicability, for example Glide, Jaguar, and MacroModel.  Maestro is the graphical user interface for the suite.  It allows the user to construct and graphically manipulate both simple and complex chemical structures, to apply molecular mechanics and dynamics techniques to evaluate the energies and geometries of mole

Firewall and Proxy Settings

Connections to OSC

In order for users to access OSC resources through the web your firewall rules should allow for connections to the following IP ranges.  Otherwise, users may be blocked or denied access to our services.


The followingg TCP ports should be opened:

  • 80 (HTTP)
  • 443 (HTTPS)
  • 22 (SSH)

The following domain should be allowed:

Software Refresh

OSC timely installs new software versions on OSC systems, and periodically do coordinated software refresh (update the default versions to be more up-to-date and remove some versions that are quite out of date) on OSC systems. While we encourage everyone to use up-to-date software, the old defaults will still be available till the next software refresh, in case some users prefer to use the old defaults. The software refresh is usually made during the scheduled downtime, while we will send out notifications to all users ahead of time for any questions/suggestions/concerns.


Glenn retired from service on March 24, 2016.

To cite Glenn, please use the following Archival Resource Key:


Here is the citation in BibTeX format:

ark = {ark:/19495/hpc1ph70},
url = {},
year  = {2009},
author = {Ohio Supercomputer Center},
title = {Glenn supercomputer}

And in EndNote format:


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