CFD General Notation System (CGNS) is a library used in scientific communities. It is available via Sourceforge in its raw form. I have found packages available for Ubuntu (http://packages.ubuntu.com/karmic/cgns-convert). Although using tools like rpmfind.net, etc. have not turned it up for Red Hat or SUSE. Specifically I am looking for an RPM for SLES 10.1 (IA-64). The system is an Altix 450.
Yes. Use the OpenSuSE software search to download the package; select SLED/SLES 10 from the dropdown. It's under "cgns". There may not be a package for your arch; if not, just set up an RPM build environment (install rpmbuild, basically) and then install the source RPM and tell rpmbuild to compile and build an RPM under your architecture.