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59 Implementation The Move Transaction as far as possible processing block is split down further and its algorithm illustrated in the flowchart shown in Figure 19. Move Transaction as far as possible Yes Start Is current block GENERATE? Yes Execute GENERATE block Execute next block Has Transaction time changed? No Is Transaction terminated? No Is next block in same partition? No End No Yes Yes Figure 19: Scheduling flowchart - part 3
60 Implementation The algorithm will first check whether the Transaction is currently within a GENERATE block and if so the GENERATE block is execute. Then the Transaction is moved into the next following block by executing it. Unless the move time of the Transaction changed, the Transaction got terminated or the next block of the Transaction lays within a different partition the algorithm will repeatedly execute the next block for the Transaction in a loop and therefore move the Transaction from block to block. From this flowchart it can be seen that the execution of GENERATE blocks is treated different to the execution of other blocks. The reason is that GENERATE blocks are the only blocks that are executed when a Transaction leaves the block where as all other blocks are executed when the Transaction enters them. This allows a GENERATE block to create the next Transaction when the last one created leaves it. The table below mentions the different methods that implement the flowchart processing blocks described. Flowchart processing block Method Initialise GENERATE blocks SimulationEngine.initializeGenerateBlocks() Update simulation time SimulationEngine.updateClock() Move all Transactions for current simulation time Chain out next movable Transaction for current time Move Transaction as far as possible SimulationEngine. moveAllTransactionsAtCurrentTime() SimulationEngine. chainOutNextMovableTransactionForCurrentTime() SimulationEngine.moveTransaction() Chain in Transaction SimulationEngine.chainIn() Execute GENERATE block GenerateBlock.execute() Execute next block Calls the execute() method of the next block instance for the Transaction Table 8: Methods implementing basic GPSS scheduling functionality
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TRANSACTION-ORIENTED SIMULATION IN
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Table of Content II Table of Conten
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IV Table of Content 6 VALIDATION OF
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Figures VI Figures Figure 1: Ad Hoc
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Tables VIII Tables Table 1: Change
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2 Introduction synchronisation algo
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2 Fundamental Concepts Fundamental
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Figure 1: Ad Hoc Grid architecture
Page 17 and 18: 8 Fundamental Concepts In continuou
Page 19 and 20: 10 Fundamental Concepts Two other a
Page 21 and 22: 12 Fundamental Concepts known as st
Page 23 and 24: 14 Fundamental Concepts event execu
Page 25 and 26: 3 Ad Hoc Grid Aspects 16 Ad Hoc Gri
Page 27 and 28: 18 Ad Hoc Grid Aspects resources an
Page 29 and 30: 20 Ad Hoc Grid Aspects means that a
Page 31 and 32: Parallel Transaction-oriented Simul
Page 33 and 34: 24 Parallel Transaction-oriented Si
Page 35 and 36: 4.2 Synchronisation algorithm 26 Pa
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Page 51 and 52: 42 Implementation confirm a provisi
Page 53 and 54: 44 Implementation large numerical p
Page 55 and 56: 46 Implementation A detailed descri
Page 57 and 58: 48 Implementation But in a parallel
Page 59 and 60: 50 Implementation GPSS test models
Page 61 and 62: Simulation Controller side 52 Imple
Page 63 and 64: 54 Implementation technique describ
Page 65 and 66: Implementation Euclidean distance b
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Page 71 and 72: No Start Is Active Object body acti
Page 73 and 74: 5.3.2 GVT Calculation and End of Si
Page 75 and 76: 66 Implementation provisional simul
Page 77 and 78: Implementation relatively basic per
Page 79 and 80: 70 Implementation log4j.logger.para
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Page 83 and 84: 74 Implementation Memory Allocation
Page 85 and 86: 76 Validation of the Parallel Simul
Page 93 and 94: 6.4 Validation 4 84 Validation of t
Page 97 and 98: … LpccEnabled=true LpccClusterNum
Page 99 and 100: Validation 5.2 Validation of the Pa
Page 105 and 106: 7 Conclusions 96 Conclusions Even s
Page 107 and 108: References 98 References [1] Amin K
Page 109 and 110: [19] Krafft G. Parallelisation of T
Page 111 and 112: Appendix A: Detailed GPSS Syntax 10
Page 113 and 114: Reserved word: DEPART Syntax: [] DE
Page 115 and 116: Reserved word: SEIZE Syntax: [] SEI
Page 117 and 118: Setting: LpccClusterNumber Default
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Appendix C: Simulator log4j loggers
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Logger: parallelJavaGpssSimulator.l
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114 Appendix D: Structure of the at
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Appendix E: Documentation of select
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!"#"$$%$&"'"(!))*+,-$"./#0$! 1$"))
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!/+/.7/8$ Appendix E: Documentation
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Returns: Appendix E: Documentation
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!"#$%&'()#%*+,"-*.# Appendix E: Doc
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Constructor Detail !"#$%&'$(#$)*$%+
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Validation 1.1, output of simulate:
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Validation 2, output of LP: Appendi
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Appendix F: Validation output logs
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Validation 2, output of simulate: A
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Validation 3.1, output of LP1: Appe
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Validation 4, output of LP1: Append
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simulation for time 2000) (628) 20:
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Validation 4, output of simulate: A
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(135) 19:37:56,477 Total transactio
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(68) 19:37:56,619 by the transactio
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(1295) 14:25:22,740 Simulation stop
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(68) 14:25:22,888 by the transactio
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Validation 6.2, output of LP2: (1)
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(32) (1,2) 0 765 Block: TRANSFER 0.
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