BibSonomy publications for /user/myhlowThu Jul 02 07:42:14 CEST 2009In Proceedings of the 7th International Symposium on Advanced Parallel Processing Technologies151-160A Parallel BSP Algorithm for Irregular Dynamic Programming2007bsp-dp Thu Jul 02 07:41:20 CEST 2009Parallel and Distributed Computing Practices1The Development of Conservative Super-step Protocols for Shared Memory Multiprocessor Systems42001pdcp2001 Thu Jul 02 07:40:33 CEST 2009Journal of Simulation269-79An Integrated and Adaptive Decision-Support Framework for High-Tech Manufacturing and Service Networks12007jos2007 Thu Jul 02 07:39:11 CEST 20092005 International Conference on Modeling and Analysis of Semiconductor Manufacturing (MASM)October201-208Analysis of Lot Sizing and Planning Bucket Strategies for Semiconductor Backend Operation2005Bucket Lot Planning Semiconductor Sizing Capacity planning in existing semiconductor assembly and test operation is usually done in weekly buckets, and incoming customer orders are checked “capable-to-promise” against these weekly buckets. Consequently, delivery of a customer order on a specific date can be ensured only if they are planned for in the previous planning week. The overall leadtime from customer order processing to final delivery can amount to more than six weeks. Significant leadtime reduction can be made through moving from weekly to daily planning buckets. At the same time, in the hyper-complex, make-to-order environment of the assembly and test manufacturing process, where order quantities are not necessarily a multiple of the optimal lot sizes due to customer order constraints, the issue of lot sizing has become even more critical than before. In this paper, we investigate the issue of lot sizing and the impact of planning bucket on the order fulfillment rate of the backend operation. A simulation model based on actual factory data is constructed and experiments were carried out to determine the best lot size to use for the factory as well as to evaluate the impact of switching from a weekly to a daily planning bucket.Thu Jul 02 07:38:27 CEST 20094th International IEEE Conference on Industrial Informatics (INDIN'06)AugustA Survey of Emergent Behavior and Its Impacts in Agent-based Systems2006Agent-based Behavior Emergent Impacts Survey Increasingly, software agents are evolving from the roles of facilitators into decision-makers in managing complex, real-time systems such as logistics enterprise. Emergent behavior is that which is not attributed to any individual (agent), but is a global outcome of individual (agent) coordination. While agent’s degree of autonomy and responsibility will continue to increase with time, the impact of emergent behavior in agent system on the performance and stability of these systems become an important issue. We found that emergent behavior is a major concern of potential users while we try to apply agent technology to such industry areas as transportation planning and logistics coordination. To really make agent technology work in industry convincingly, it is valuable to do a study of emergent behaviour and its impacts to the application of agent technology. This paper reviews the research on emergent behaviour, discuss its research challenge and application impact, and suggest research directions on agent emergent behaviour.Thu Jul 02 07:37:50 CEST 2009UK Operational Research Society Simulation Workshop 2006 (SW06)MarchUsing Web Services and Business Process Execution Language for HLA-based Distributed Supply-chain Simulation2006BPEL Distributed Interoperability SOAP Services Simulation UDDI Web Supply-chains are large systems consisting of many components interacting in complex ways. The challenge faced by companies is how to design and manage such systems. Modeling and simulation enables analysis of complex systems but as the model increases in size and realism, a distribution capability is needed. While the High Level Architecture provides the infrastructure needed for large-scale distributed simulation, it does not have a mechanism to coordinate the configuration and invocation of geographically distributed models through a single point of access. This capability is provided by Web services. By publishing the HLA-based simulation models of their enterprise as Web services, companies can critically compare customized supply-chain scenarios by configuring, executing and analyzing the corresponding distributed simulations. This paper describes an approach that uses Web services and Business Process Execution Language to support the business process (discovery, configuration, deployment and execution) of carrying out large-scale distributed simulations using the HLA framework.Thu Jul 02 07:36:10 CEST 20092006 Winter Simulation ConferenceDecember1101-1110Developing Interoperability Standards for Distributed Simulation and COTS Simulation Packages with CSPI PDG2006COTS CSPIPDG Distributed Interoperability Packages Simulation Standards For many years discrete-event simulation has been used to analyze production and logistics problems in manufacturing and defense. In the early 1980s, visual interactive modelling environments were created that supported the development, experimentation and visualization of simulation models. Today these environments are termed Commercial-off-the-shelf Simulation Packages (CSPs). With the advent of distributed simulation and, later, the High Level Architecture, the possibility existed to link together these CSPs and their models to simulate larger problems within enterprises (e.g. multiple production lines) and across supply chains. However, the problem of standardizing the use of the HLA and its constituent parts in this domain exists. The solution of this problem is the work of the CSP Interoperability Product Development Group (CSPI PDG). The purpose of this paper is to introduce the CSPI PDG and to review the suite of standards proposed by the group and current progress.Tue Sep 16 10:57:52 CEST 2008In Proceedings of the 15 th European Simulation Symposium (ESS2003)5-13Implementation Issues for Shared State in HLA-based Distributed Simulation2003imported Tue Aug 26 17:32:54 CEST 2008Utrecht, The NetherlandIn Proceedings of the 2005 International Conference on Autonomous Agent and Multiagent Systems (AAMAS) July85-92An Agent-based Approach for Managing Symbiotic Simulation of Semiconductor Assembly and Test Operations2005Agent-based Approach Assembly Managing Operations Semiconductor Simulation Symbiotic Test Sat Jul 05 19:33:28 CEST 2008Future Generation Computer Systems187-95Federate Migration in HLA-based Simulation212005Federate HLA-based Migration Simulation Sat Jul 05 19:32:33 CEST 20083rd High Performance Computing (HPC) Asia1180-1189A Parallel Discrete-Event Simulation of Wafer Fabrication Processes1998Discrete Event Fabrication Parallel Processes Simulation discrete simulation Sun Aug 12 10:02:26 CEST 2007ACM Transactions on Modeling and Computer SimulationOct4316-345Algorithms for HLA-based Distributed Simulation Cloning152005High architecture, distributed infrastructure, level runtime Distributed simulation cloning technology is designed to analyze alternative scenarios of a distributed simulation concurrently within the same execution session. One important goal is to optimize execution by avoiding repeated computation among independent scenarios. Our research is concerned with the cloning of High Level Architecture (HLA)-based distributed simulations; a federate may spawn clones to explore different scenarios at a decision point. This article introduces the cloning mechanism and the supporting infrastructure. When enabling cloning, our approach ensures the state consistency and supports user transparency and reusability of federate codes. When a federate clones, it is desirable to replicate only those federates whose states will be affected while the rest are shared among the old and new scenarios. This article discusses the theory and issues involved in such an incremental cloning mechanism, which guarantees accurate sharing and initiates cloning only when absolutely necessary. Experiments have been carried out to compare the performance of entire cloning and incremental cloning mechanisms. Experimental results indicate that the proposed approach provides correct cloning and can significantly reduce the execution time for evaluating different scenarios of a distributed simulation. Moreover the incremental cloning mechanism significantly surpasses entire cloning in terms of execution efficiency.Sat Apr 07 17:58:04 CEST 2007Microprocessors and Microsystems Journal7409-421Loop Parallelisation Tool for Message-Passing SystemsM201997Loop Message-Passing Parallelisation Systems Tool Sat Apr 07 17:57:24 CEST 2007Simulation: Transactions of the Society for Modeling and Simulation International,4279-291Optimistic Synchronization in HLA Based Distributed Simulation812005Distributed HLA Optimistic Simulation Synchronization Sat Apr 07 17:44:00 CEST 2007Simulation: Transactions of the Society for Computer Simulation (SCS), Joint Special Issue on Parallel and Distributed Simulation3170-186Survey of Languages and Runtime Libraries for Parallel Discrete Event Simulation721999discrete event languages libraries parallel runtime simulation survey Tue Mar 27 06:46:15 CEST 2007Simulation: Transactions of the Society for Modeling and Simulation InternationalAugust8511-521Shared State Synchronization for HLA-Based Distributed Simulation822006Distributed HLA Shared Simulation State Tue Mar 27 06:44:50 CEST 2007IEEE Transactions on System, Man Cybernetics. Part A: Systems and HumansJan1109-122Integrating Heterogeneous Distributed COTS Discrete-Event Simulation Packages: An Emerging Standards-based Approach362006Discrete-event architecture distributed high interoperability level simulation standards This paper reports on the progress made toward the emergence of standards to support the integration of heterogeneous discrete-event simulations (DESs) created in specialist support tools called commercial-off-the-shelf (COTS) discrete-event simulation packages (CSPs). The general standard for heterogeneous integration in this area has been developed from research in distributed simulation and is the IEEE 1516 standard The High Level Architecture (HLA). However, the specific needs of heterogeneous CSP integration require that the HLA is augmented by additional complementary standards. These are the suite of CSP interoperability (CSPI) standards being developed under the Simulation Interoperability Standards Organization (SISO—http://www.sisostds.org) by the CSPI Product Development Group (CSPI-PDG). The suite consists of several interoperability reference models (IRMs) that outline different integration needs of CSPI, interoperability frameworks (IFs) that define the HLA-based solution to each IRM, appropriate data exchange representations to specify the data exchanged in an IF, and benchmarks termed CSP emulators (CSPEs). This paper contributes to the development of the Type I IF that is intended to represent the HLA-based solution to the problem outlined by the Type I IRM (asynchronous entity passing) by developing the entity transfer specification (ETS) data exchange representation. The use of the ETS in an illustrative case study implemented using a prototype CSPE is shown. This case study also allows us to highlight the importance of event granularity and lookahead in the performance and development of the Type I IF, and to discuss possible methods to automate the capture of appropriate values of lookahead.