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Modeling Complex Systems with simlib: A Practical Guide

This chapter provides an introduction to modeling complex systems using simlib, a simple simulation language. Topics include list processing in simulation, single-server queueing system, time-shared computer model, multi-teller bank with jockeying, job-shop model, and efficient event-list manipulation.

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Modeling Complex Systems with simlib: A Practical Guide

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  1. Chapter 2 Modeling Complex Systems

  2. Outline • Introduction • List Processing in Simulation • A Simple Simulation Language: simlib • Single-Server Queueing System with simlib • Time-Shared Computer Model • Multi-teller Bank with Jockeying • Job-Shop Model • Efficient Event-List Manipulation Prof. Huei-Wen Ferng

  3. Introduction • Most real-world systems • Quite complex • A difficult and time-consuming task Prof. Huei-Wen Ferng

  4. Outline • Introduction • List Processing in Simulation • A Simple Simulation Language: simlib • Single-Server Queueing System with simlib • Time-Shared Computer Model • Multi-teller Bank with Jockeying • Job-Shop Model • Efficient Event-List Manipulation Prof. Huei-Wen Ferng

  5. Prof. Huei-Wen Ferng

  6. List Processing in Simulation • Complex simulations require many lists • Use FIFO manner to process the list • Two approaches to storing lists • Sequential allocation • Linked allocation Prof. Huei-Wen Ferng

  7. Advantages of Linked Allocation • Time can be significantly reduced • We can speed up event-list processing considerably • Memory can be reduced • It is a general framework Prof. Huei-Wen Ferng

  8. Outline • Introduction • List Processing in Simulation • A Simple Simulation Language: simlib • Single-Server Queueing System with simlib • Time-Shared Computer Model • Multi-teller Bank with Jockeying • Job-Shop Model • Efficient Event-List Manipulation Prof. Huei-Wen Ferng

  9. A Simple Simulation Language: simlib • An easy-to-understand C-based simulation “language” • Symbols, declarations, and definitions see pp 114-122 • Source codes Prof. Huei-Wen Ferng

  10. Outline • Introduction • List Processing in Simulation • A Simple Simulation Language: simlib • Single-Server Queueing System with simlib • Time-Shared Computer Model • Multi-teller Bank with Jockeying • Job-Shop Model • Efficient Event-List Manipulation Prof. Huei-Wen Ferng

  11. Single-Server Queueing System with simlib • Source codes for the M/M/1 queueing system Prof. Huei-Wen Ferng

  12. Outline • Introduction • List Processing in Simulation • A Simple Simulation Language: simlib • Single-Server Queueing System with simlib • Time-Shared Computer Model • Multi-teller Bank with Jockeying • Job-Shop Model • Efficient Event-List Manipulation Prof. Huei-Wen Ferng

  13. Problem Statement Prof. Huei-Wen Ferng

  14. Prof. Huei-Wen Ferng

  15. Prof. Huei-Wen Ferng

  16. Prof. Huei-Wen Ferng

  17. Prof. Huei-Wen Ferng

  18. Time-Shared Computer Model • Source code Prof. Huei-Wen Ferng

  19. Outline • Introduction • List Processing in Simulation • A Simple Simulation Language: simlib • Single-Server Queueing System with simlib • Time-Shared Computer Model • Multi-teller Bank with Jockeying • Job-Shop Model • Efficient Event-List Manipulation Prof. Huei-Wen Ferng

  20. Problem Statement Prof. Huei-Wen Ferng

  21. Prof. Huei-Wen Ferng

  22. Prof. Huei-Wen Ferng

  23. Prof. Huei-Wen Ferng

  24. Prof. Huei-Wen Ferng

  25. Multi-teller Bank with Jockeying • Source code Prof. Huei-Wen Ferng

  26. Outline • Introduction • List Processing in Simulation • A Simple Simulation Language: simlib • Single-Server Queueing System with simlib • Time-Shared Computer Model • Multi-teller Bank with Jockeying • Job-Shop Model • Efficient Event-List Manipulation Prof. Huei-Wen Ferng

  27. Problem Statement Prof. Huei-Wen Ferng

  28. Prof. Huei-Wen Ferng

  29. Prof. Huei-Wen Ferng

  30. Prof. Huei-Wen Ferng

  31. Job-Shop Model • Source code Prof. Huei-Wen Ferng

  32. Outline • Introduction • List Processing in Simulation • A Simple Simulation Language: simlib • Single-Server Queueing System with simlib • Time-Shared Computer Model • Multi-teller Bank with Jockeying • Job-Shop Model • Efficient Event-List Manipulation Prof. Huei-Wen Ferng

  33. Efficient Event-List Manipulation • Efficient searching method • Data structures etc. Prof. Huei-Wen Ferng

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