Allocations and Accounts

The Ohio Supercomputer Center provides cycles to both academic and industrial clients. The methods for gaining access to the systems are different for each user community.

Primarily, our users are Ohio-based and academic, and the vast majority of our cycles will continue to be consumed by Ohio-based academic users. Those cycles are allocated to academic PIs via an allocations process overseen by the Statewide Users Group, which evaluates applications via a peer review process. There are two basic classes of academic allocations:

  1.  an allocation of a number of resource units (RUs) that never expire
  2.  an annual allocation process that awards an RU allocation for the upcoming calendar year. The annual allocation process is designed for "discovery level" users, who consistently consume large amounts of resources, and allow the Allocations Committee to better allocate the limited Center resources.

Other users (non-Ohio academic or industrial/commercial) interested in using Center resources may purchase cycles at a rate set by the expected total consumption. Expert consulting support is also available.

You may find more information about "RU" calculation and charging here.

  Ohio Academic Other
  Rolling Annual Rolling
Duration Unlimited 1 year Unlimited
Allocation Approval SUG SUG OSC Director
Call for Proposals At any time November At any time
  Apply [By invitation] Apply

For users interested in gaining access to larger resources, please contact OSC Help. We can assist you in applying for resources at an NSF or XSEDE site.

Once a project has been created, the PI can create accounts for users by contacting OSC Help to add existing users to that project

I need to add authorized users to my project

Please contact OSC Help. We require PI approval. 

I need additional resources for my existing project

If you already have a project, but are running low on allocated resources, you can click on the links above for your project type to request additional resources.

I wish to use OSC to support teaching a class

We provide special classroom allocations for this purpose. You may apply here.

I don't think I fit in the above categories

Please contact us.

Managing Your Account

Once your account is set-up, you will receive a welcome letter from us containing your username and instructions for setting up your account.

MyOSC, one of our web portals, provides services to OSC users, including:

  • Password changes and resets for your HPC accounts
  • Changing your UNIX shell
  • Updating your email address
  • Tracking your project(s) balance​

Note: HPC password changes and resets take 3-5 minutes to process. If you attempt to login with your new password, you will receive an error. Too many failed login attempts results in your account being automatically locked for 5 minutes.


Are the answers you're looking for not here? Contact OSC Help


Managing Your Project

Principal Investigators of OSC projects are responsible for updating their authorized user list, their outside funding sources, and their publications and presentations that cite OSC. All of these tasks can be accomplished by contacting OSC Help with the information. PIs are also responsible for monitoring their project's Resource Unit balance and for submitting a proposal to the Allocations Committee of the Statewide Users Group before the balance goes negative. Projects with negative balances are subject to restrictions, causing submitted jobs to have lower priority in the queue. We have a resource page for your convenience. 

Allocation managment for Ohio-based academic projects

Eligible Principal Investigators must be tenure-track faculty members or permanent research scientists at Ohio colleges or universities. All other researchers, such as postdoctoral researchers, graduate students, and undergraduate students, may be authorized users under a project led by an eligible PI.

Principal Investigators who plan to submit a proposal for additional resource units should have the following information ready when they fill out the application form:

  • names, departments, affiliations, and email addresses of new authorized users
  • names and email address of two or three suggested peer reviewers
  • document with performance reports and justification for request
  • electronic version of resume/CV
  • list of publications and presentations that cite OSC
  • proposal text
  • document with other pertinent information (optional)

Send a query to or to if you require more detailed information concerning the application process.

Once a proposal has been approved for peer review, any restrictions that have been accrued due to a negative balance will be lifted. The Allocations Committee meets every other month (even-numbered months), and awards are made after the meeting.

Account Maintenance and Usage: Please use MyOSC to update your password, shell, and check usage on the project. The command OSCusage will also provide usage details. 

Allocation managment for purchased cycles

Please disregard any RU messages or instructions to apply for additional resources. If you have any billing questions, please consult your contact at OSC or inquire with OSC Help.