GNU Compilers

Fortran, C and C++ compilers produced by the GNU Project. 

Availability and Restrictions


The following versions of the GNU compilers are available on OSC systems:


CDO (Climate Data Operators) is a collection of command line operator to manipulate and analyse climate and NWP model data. It is open source and released under the terms of the GNU General Public License v2 (GPL).

Availability and Restrictions


CDO is available on Oakley Cluster. The versions currently available at OSC are:

Parallel netCDF

PnetCDF is a library providing high-performance parallel I/O while still maintaining file-format compatibility with  Unidata's NetCDF, specifically the formats of CDF-1 and CDF-2. Although NetCDF supports parallel I/O starting from version 4, the files must be in HDF5 format. PnetCDF is currently the only choice for carrying out parallel I/O on files that are in classic formats (CDF-1 and 2). In addition, PnetCDF supports the CDF-5 file format, an extension of CDF-2, that supports more data types and allows users to define large dimensions, attributes, and variables (>2B elements).


Boost is a set of C++ libraries that provide helpful data structures and numerous support functions in a wide range of aspects of programming, such as, image processing, gpu programming, concurrent programming, along with many algorithms.  Boost is portable and performs well on a wide variety of platforms.



Molpro is a complete system of ab initio programs for molecular electronic structure calculations.  The emphasis is on highly accurate computations, with computationally efficient and extensive treatments of electron correlation. The Molpro program offers multiconfiguration SCF, multireference CI, coupled-cluster routines, local electron correlation methods, and a wide range of supporting features. Additional information can be found at the Molpro website.


SIESTA is both a method and its computer program implementation, to perform efficient electronic structure calculations and ab initio molecular dynamics simulations of molecules and solids. More information can be found from here.

Statewide Software Licensing

OSC has received funding from the Ohio Board of Regents to acquire statewide licenses for software tools that will facilitate research. We are pleased to announce the availability of the products below. There are a limited number of licenses for each product. The licensing program initially will be available to current OSC users and then will be expanded to a wider audience. Please remember that this is an experiment for Ohio and the vendors. As such, we will need to hear any concerns or problems you encounter.

User-Defined Material for LS-DYNA

This page describes how to specify user defined material to use within LS-DYNA.  The user-defined subroutines in LS-DYNA allow the program to be customized for particular applications.  In order to define user material, LS-DYNA must be recompiled.


LS-DYNA with user defined material models are only available on the Glenn Cluster.


The following versions on Glenn are available for use with user defined material models:


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