Here you can find information on using Ohio Supercomputer Center (OSC) software and on our charging policies.
Academic Agreement forms are required to use some third-party software. These documents apply to more than one platform or to no particular platform. A complete list is available on the forms page.
The following text describes the charging algorithms for academic use on OSC hardware.
Charging for Academic Use
Supercomputer resources on The Cluster are charged in terms of Resource Units, a common measure of the use of CPU and file storage across all platforms.
The charging formula for RUs consumed by a process is:
The formula for calculating total CPU time differs between parallel and serial jobs. Parallel jobs are charged for whole nodes regardless of the ppn request submitted. This means if you were to only request ppn=2 for a 2 node parallel job on Oakley, you would be charged as if you requested a ppn=12 regardless.
For serial jobs:
For parallel jobs:
There is no charge specifically for GPU usage. There is a difference in how GPU jobs are allocated normal processors, and therefore charged, between Oakley and Glenn. Serial GPU jobs on Oakley may request partial nodes ( ppn < 12 ) and will only be allocated their requested processors like a normal serial job, while on Glenn serial GPU jobs are allocated like parallel jobs ( they must request the whole node via ppn=8 ) and therefore are charged like them.
The only special charging case is for a serial GPU job on Glenn:
total CPU time = [walltime used] x [max ppn on system] x [nodes requested]
NOTE: At this time, there is no charge for file storage.
The Ohio Supercomputer Center manages a program that offers state-of-the art software installed at the user's home site. Originally this program was titled "Statewide Software Library." That is subsumed by the later program: Statewide Software Distribution.