Getting a Libra Account

You can easily get by with your personal computer, but you can also have an account on the Libra Linux cluster for your simulations and data analysis during Q550. Libra contains Matlab and statistical software, as well as most high-level compilers. You can find a list of software available on Libra at: http://rac.uits.iu.edu/rats/research/libra/Libra_software.shtml

The following compilers are available on Libra:

* IBM XL Fortran Enterprise Edition

* IBM XL C/C++ Enterprise Edition

* GNU C/C++

* GNU Fortran77

* Java 32-bit and Java 64-bit

Several scientific/numerical subroutine libraries are also available on Libra. These can be called within your Fortran or C programs if the libraries are linked at compile time. The following libraries are available:

* GNU Scientific Library (GSL)

* IBM Engineering and Scientific Subroutine Library (ESSL)

* IBM Mathematical Acceleration Subsystem (MASS)

* International Mathematical Subroutine Library (IMSL)

* LAPACK Fortran Numerical Library

* NAG Parallel Routines (Numerical Algorithms Group)

To sign up for an account, go to http://rc.uits.iu.edu/rats/forms/application.php and check "Libra." Enter your information, and my email address as sponsor (jonesmn@indiana.edu). Under comments, just write "Q550: Computational Models of Cognition" and select "No" to all questions that follow. Then submit.

If you’re using a Mac to connect, install X11 (if you haven’t already). If you’re planning to connect from a PC, you will likely want SSH (http://www.ssh.com/) and/or some sort of XWindows emulator, such as Cygwin (http://www.cygwin.com/).

For more information on Libra, go to: http://rc.uits.iu.edu/rats/research/libra/index.shtml