Boon-Ping Gan

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The development of parallel simulation technology is seen as an enabler for the implementation of the virtual factory concept, the integrated simulation of all the systems in a factory. One important parallel simulation protocol, the asynchronous deadlock avoidance algorithm proposed by Chandy, Misra, and Bryant, has usually been discussed in the context of(More)
Simulation cloning is designed to satisfy the requirement of examining alternative scenarios concurrently. This article discusses the issues involved in cloning distributed simulations based on the High Level Architecture (HLA) and proposes tentative solutions. Alternative solutions are compared from both the qualitative and quantitative point of view. In(More)
<italic>Load balancing is a crucial factor in achieving good performance for parallel discrete event simulations. In this paper, we present a load balancing scheme that combines both static partitioning and dynamic load balancing. The static partitioning scheme maps simulation objects to logical processes before simulation starts while the dynamic load(More)
Supply chain management offers a large potential for organizations to reduce costs and improve customer service performance. Simulation of supply chains can help in these objectives by evaluating the impact of alternate inventory control policies. Supply chain simulation involves modeling of multiple factories across the chain and can get quite complex.(More)
Semiconductor manufacturing is a highly complex and asset intensive process. Solutions are needed to automate control of equipment and improve efficiency. We describe a symbiotic simulation control system which uses reactive what-if analysis to find a stable configuration of a wet bench tool set. This control system is based on a generic framework for(More)
We have developed a set of performance prediction tools which help to estimate the achievable speedups from parallelizing a sequential simulation. The tools focus on two important factors in the actual speedup of a parallel simulation program : (a) the simulation protocol used, and (b) the inherent parallelism in the simulation model. The first two tools(More)
The High Level Architecture (HLA) is an IEEE standard for interoperating simulation federates. In this paper, we describe a set of requirements that simulation packages need to satisfy in order to be made interoperable using the HLA standard. <i>AutoSched AP</i>, a commercial off-the-shelf simulation package (CSP) which is widely used in the semiconductor(More)
Effective supply chain management (SCM) enables organisations to be more competitive in the current world of global manufacturing. Simulation can help by evaluating the feasibility of alternative policies and arrangements for managing a supply chain. However, detailed simulation of the supply chain can be complex and computationally intensive. We develop a(More)
Time synchronization has always been a critical deciding factor of whether interoperating simulation models using the high level architecture (HLA) is achievable efficiently. In this paper, we propose a conservative time synchronization algorithm that makes use of the manufacturing process flow information (a sequence of steps production lots flow through)(More)