MATLAB Distributed Computing Server (MDCS) lets you run MATLAB programs and Simulink models on computer clusters. Build your program or model on a desktop using Parallel Computing Toolbox, and then run your code on many computers using MDCS.
Parallel Computing Toolbox is included in the MATLAB product suite that departments, employees, and students can buy through the Vanderbilt Software Store. Once you subscribe to MATLAB, you are eligible to get MDCS at no cost through the store.
See http://www.mathworks.com/products/distriben/ for product information.