Basic Simulation Modeling - Parallel/distributed simulation and the high level architecture

5 important questions on Basic Simulation Modeling - Parallel/distributed simulation and the high level architecture

Logical processes (lP)

sequential discrete-event simulation model, having its own local state variables, event list and simulation clock

Local causality constraint (LCC)

each LP processes all its events in increasing order of time

Goal of conservative synchronization and 2 disadvantages

goal: absolutely avoid violating the LCC
Disadvantages:
1) can't fully exploit the available parallelism
2) not very robust
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Give 2 types of synchronization mechanism

1) conservative synchronization
2) Optimistic synchronization

What's the best-known optimistic approach?

Time-wrap mechanism: rollback to earlier time of incoming message + antimessages (and possibly secondary rollbacks etc.)

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