Updates to Oakley Application Software - September 2015

OSC is refreshing the software stack on Oakley on September 15, 2015 (during the scheduled downtime); something we have not done since Oakley entered service in 2012. During the software refresh, some default versions are updated to be more up-to-date and some older versions are removed. Information about the old and new default versions, as well as all available versions of each software package will be included on the corresponding OSC software webpage. See


PNG (Portable Network Graphics) is an extensible file format for the lossless, portable, well-compressed storage of raster images. PNG provides a patent-free replacement for GIF and can also replace many common uses of TIFF. Indexed-color, grayscale, and truecolor images are supported, plus an optional alpha channel. Sample depths range from 1 to 16 bits.

Availability and Restrictions


The following versions of PNG are available on OSC clusters:


Pixman is a low-level software library for pixel manipulation, providing features such as image compositing and trapezoid rasterization. Important users of pixman are the cairo graphics library and the X server. Pixman is implemented as a library in the C programming language. It runs on many platforms, including Linux, BSD Derivatives, MacOS X, and Windows.

Availability and Restrictions


The following versions of Pixman are available on OSC clusters:


FreeType is a freely available software library to render fonts. It is written in C, designed to be small, efficient, highly customizable, and portable while capable of producing high-quality output (glyph images) of most vector and bitmap font formats.

Availability and Restrictions


The following versions of FreeType are available on OSC clusters:


Cairo is a 2D graphics library with support for multiple output devices. It is designed to produce consistent output on all output media while taking advantage of display hardware acceleration when available.

Availability and Restrictions


The following versions of Cairo are available on OSC clusters:


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:


NCL (The NCAR Command Language), is a free interpreted language designed specifically for scientific data processing and visualization. It is a product of the Computational & Information Systems Laboratory at the National Center for Atmospheric Research (NCAR) and sponsored by the National Science Foundation. NCL has robust file input and output: it can read and write netCDF-3, netCDF-4 classic, HDF4, binary, and ASCII data, and read HDF-EOS2, GRIB1, and GRIB2.


ParaView is an open-source, multi-platform application designed to visualize data sets of size varying from small to very large. ParaView was developed to support distributed computational models for processing large data sets and to create an open, flexible user interface.

Availability and Restrictions

ParaView is available on Ruby, Oakley and Glenn Clusters. The versions currently available at OSC are:


TurboVNC is an implementation of VNC optimized for 3D graphics rendering.  Like other VNC software, TurboVNC can be used to create a virtual desktop on a remote machine, which can be useful for visualizing CPU-intensive graphics produced remotely.

Availability and Restrictions

TurboVNC is available on Oakley and Glenn Clusters. The versions currently available at OSC are:



The Visualization ToolKit (VTK) is an open source, freely available software system for 3D computer graphics, image processing and visualization. VTK consists of a C++ class library and several interpreted interface layers including Tcl/Tk, Java and Python.



Subscribe to RSS - Visualization