JWarp: a Java library for parallel discrete-event simulations

Abstract

Java is a very promising language for use in the simulation of physical models due to its objectoriented nature, portability, robustness and support for multithreading. This paper presents JWarp, a Java library for discrete-event parallel simulations. It is based on an optimistic model for synchronization of the simulation entities: the Time Warp mechanism. We introduce the main features of the library and discuss some of the implementation details.

MPJ Express Meets Gadget: Towards a Java Code for Cosmological Simulations

“…JWarp [3] is a Java library for discrete-event parallel simulations, which builds its own communication infrastructure based on Remote Method Invocation (RMI). MONARC [4] is a simulation framework for large scale computing resources.…”

ASDA: um ambiente de simulação distribuída automático

“…• JWarp (Bizarro et al, 1998): desenvolvido na Universidade de Coimbra, utiliza a linguagem Java e implementa o protocolo Time Warp;…”

“…A UML é uma linguagem gráfica para visualização, especificação, construção e documentação de artefatos de sistemas complexos de software (Booch et al, 2000), propondo…”

“…A arquitetura de sistema pode ter 5 visões complementares e inter-relacionadas, como ilustrado na figura B.1 (Booch et al, 2000). Em conjunto, essas visões representam a base do projeto do software e podem conter aspectos estruturais (características estáticas) e comportamentais (características dinâmicas).…”

SPaDES/Java: object-oriented parallel discrete-event simulation

“…Simkit [2] event or process-oriented sequential Java JADIS [17] event-oriented sequential Java JSIM [14] process interaction distributed sequential Java SimJava [18] event-oriented multi-threaded seq Java DESMO-J [10] event + process-oriented multi-threaded seq Java Jwarp [1] event-oriented optimistic Java SPEEDES [12,22] event-oriented optimistic C++ CPSim [15] event-oriented conservative C This paper introduces SPaDES/Java, a PDES library that supports the process-oriented modeling view and implemented in the Java language. SPaDES/Java provides transparency of the underlying event synchronization implementation and relieve the programmer from parallel programming, thereby enabling the simulationist to concentrate on modeling the problem at hand.…”