System Status

Scheduled OSC System Downtimes

OSC strives to minimize the number of system downtimes and provide clients with significant advance notice but reserves the right to change the date(s) of these downtimes and/or add additional downtimes to improve the performance of our services.

Tuesday, March 22, 2022
Tuesday, June 21, 2022
Tuesday, September 27, 2022
Tuesday, December 13, 2022

Active System Messages

Planned network maintenance Jan 28 2022

There is a planned network maintenance with OSC systems on 28 Jan 2022. It is expected to cause a loss of connection to OSC systems for up to 5 mins during the maintenance window of 5am-6am on 28 Jan 2022. Please contact if there are any questions.

Home directory quota is inaccurate after Dec 14 Downtime

The home directory quota when logging into systems, or displayed through OnDemand or client portal ( is inaccurate after Dec 14 Downtime. For more information see this page:

OSC Classroom Support

CLASSROOM RESOURCES FOR DISTANCE LEARNING If your class has lost or limited access to computer labs, the Ohio Supercomputer Center might be able to help by providing no-cost access to cloud computing resources. Classes and workloads of any size can gain access. OSC's web-browser interface to its substantial Linux computer systems provides novice users with virtual desktops preloaded with applications, such as MATLAB, RStudio, or Jupyter Notebook. As an example, an OSU undergrad statistics class recently used iPads to remotely access RStudio on OSC systems.

Known Issues (unresolved)

A list of all known issues, including those that have been resolved, can be found here.

Title Category Description Posted Updated
Ansys DesignModeler with hardware acceleration Software

Ansys DesignModeler with hardware acceleration is not working.

With Ansys version greater than 19.1, DesignModeler is working with software rendering mode, but it is very slow.

 ... Read more

2 years 1 month ago 2 years 1 month ago
Large MPI job startup hang with mvapich2/2.3 and mvapich2/2.3.1 Owens, Pitzer, Software

We have found that large MPI jobs may hang at startup with mvapich2/2.3 and mvapich/2.3.1 (on any compiler dependency) due to a known bug that has been fixed in release 2... Read more

2 years 2 months ago 2 years 2 months ago
Gaussian g16b01 G4 problem Owens, Pitzer, Software

Gaussian-4 (G4) theory calculations in Gaussian 16 Rev. B.01 can produce erratic results.  A workaround is to use Gaussian 16 Rev. A.03 or Rev. C.01, e.g.: 

module load gaussian/... Read more          
2 years 12 months ago 2 years 3 months ago
Error when downloading SRA data on computing nodes Owens, Pitzer, Software

NCBI blocks any connection from computing nodes because they are behind firewalls. Thus OSC users cannot use SRA tools to download data "on-the-fly" at runtime on computing nodes, e.g. 'fastq-dump... Read more

2 years 6 months ago 2 years 6 months ago
LAMMPS 14May16 velocity command problem on Owens Software

LAMMPS 14May16 on Owens can hang when using the velocity command.  Inputs that hang on Owens work on Oakley and Ruby.  LAMMPS 31Mar17 on Owens also works.  Here is an example failing input snippet... Read more

5 years 1 month ago 4 years 3 months ago