Heres the latest paper I've published in JPDC. The Wellcome Trust has paid for it to be made open access.
Andrew J. Page, Thomas M. Keane and Thomas J. Naughton, Multi-heuristic dynamic task allocation using genetic algorithms in a heterogeneous distributed system, Journal of Parallel and Distributed Computing, Volume 70, Issue 7, July 2010, 758-766.
We present a multi-heuristic evolutionary task allocation algorithm to dynamically map tasks to processors in a heterogeneous distributed system. It utilizes a genetic algorithm, combined with eight common heuristics, in an effort to minimize the total execution time. It operates on batches of unmapped tasks and can preemptively remap tasks to processors. The algorithm has been implemented on a Java distributed system and evaluated with a set of six problems from the areas of bioinformatics, biomedical engineering, computer science and cryptography. Experiments using up to 150 heterogeneous processors show that the algorithm achieves better efficiency than other state-of-the-art heuristic algorithms.