Overview of computing at NCAR -
Mathematical and other libraries

Last update: 05/14/2008

Mathematical libraries

Mathematical libraries are provided by the vendor (or by third-party vendors) optimized for each type of system. Many of these libraries are multi-threaded to maximize performance on our cluster systems. The following links provide library information for our systems:

Through several decades, CISL has provided locally-developed libraries that have been valuable resources on the supercomputers of the past. These libraries are sequential, so do not perform efficiently on the massively parallel computers now being used. But we will help you build them on /contrib, on the CISL supercomputers and data analysis cluster, if you need them for historical reasons.

If a vendor library does not provide the functionality you want, consider the Netlib repository of libraries maintained by The University of Tennessee at Knoxville and Oak Ridge National Laboratory. Netlib is a large collection of single-threaded math and statistics libraries useful to computational work in the geosciences. Note that most of these libraries have not been designed for multiple-thread usage, so you should use them only in single-threaded codes. You should only consider libraries from this source to be thread safe if this is explicitly declared.

netCDF - Interface for data access

NetCDF (network Common Data Form) is an interface for array-oriented data access and a software library that provides an implementation of the interface. The netCDF library also defines a machine-independent format for representing scientific data. Together, the interface, library, and format support the creation, access, and sharing of scientific data. The netCDF software was developed at the Unidata Program Center in Boulder, Colorado. The freely available source can be obtained from Unidata's netCDF website.

CISL maintains the netCDF library in /usr/local/lib in most cases.

Converting from Cray-style datasets to IEEE format

Please contact us at the addresses in the link below if you have data conversion problems.


Overview of computing at NCAR - Table of contents

If you have questions about this document, please contact us via any of the methods (phone, email, ticket, or in person) described here: CISL Customer Support.

© Copyright 2003-2008. University Corporation for Atmospheric Research (UCAR). All Rights Reserved.

Address of this page: http://www.cisl.ucar.edu/docs/access/libs.html