SystemsUsingJava.PDF

International Journal of Scientific Engineering Research Volume 3, Issue 4, April-2012 1 ISSN 2229-5518 Setting CPU Affinity in Windows Based SMP Systems Using Java Bala Dhandayuthapani Veerasamy, Dr. G.M. Nasira Abstract—Multithreaded program involves multiple threads of control within a single program on single or multiple environments. In multithreaded programming model, a single process can have multiple, concurrent execution paths on CPUs. Thread affinity benefit a thread to run on a specific subset of processors. Multithreaded programming is written in many programming languages with an improvement of setting an affinity to threads. Java supports to develop multithreaded programming, while it does not contain any method to set an affinity for threads on CPU. This paper articulates the method to setting CPU affinity for threads in windows based SMP systems using Java. Index Terms— Affinity mask, JNA, Multithread, Thread, Windows programming ——————————  —————————— 1 INTRODUCTION OST concurrent applications [3] are organized around its execution immediately. Once terminated, a thread cannot be the execution of tasks: abstract, discrete units of work. resumed. Thread priority determines how that thread should be M Dividing the work of an application into tasks treated with respect to the others. Thread priorities are integers simplifies program organization, facilitates error recovery by that specify the relative priority of one thread to another. As an providing natural transaction