Comparison between an imperative and functional solution executed on the cloud : Java vs Scala for matrix multiplication performed on Amazon EC2

This thesis handles a comparison of matrix multiplication in the functional and imperative paradigm. The main focus was on the performance of the different implementations executed on the EC2 cloud service. The imperative solution was implemented in Java, and the functional solution was implemented in Scala. This thesis also investigates general differences in lines of written code and the amount of Java bytecode for each implementation. The performances of the two implementations were evaluated through benchmarks when running on a local computer and when executed on the cloud. Consequently, a functional implementation in Scala is preferable when computing matrix multiplication in terms of memory usage and minimum execution time, both on the cloud and on a local computer. The Scala implementation consisted of less amount of written code as well. Although, a Java solution generates less estimated amount of Java bytecode