Extending the OMNeT++ Sequence Chart for Supporting Parallel Simulations in Horizon
نویسندگان
چکیده
Developing parallel network simulations is a complex task. Besides getting the model right, developers of parallel simulations are striving for an additional design goal: Performance. We argue that developers need an insight into the behavior of a simulation model in order to assess and optimize its parallel performance. Specifically, given a parallel simulation model, it is imperative to identify and eliminate performance bottlenecks. To this end, we extend the sequence chart provided by the Eclipse-IDE of OMNeT++ with specific functionality to visualize, analyze, and optimize the performance of parallel simulations in the context of our OMNeT++-based parallel simulation framework Horizon. This extended abstract presents the features and modifications of our code contribution.
منابع مشابه
Finite Horizon Economic Lot and Delivery Scheduling Problem: Flexible Flow Lines with Unrelated Parallel Machines and Sequence Dependent Setups
This paper considers the economic lot and delivery scheduling problem in a two-echelon supply chains, where a single supplier produces multiple components on a flexible flow line (FFL) and delivers them directly to an assembly facility (AF). The objective is to determine a cyclic schedule that minimizes the sum of transportation, setup and inventory holding costs per unit time without shortage....
متن کاملImproved Optimization Process for Nonlinear Model Predictive Control of PMSM
Model-based predictive control (MPC) is one of the most efficient techniques that is widely used in industrial applications. In such controllers, increasing the prediction horizon results in better selection of the optimal control signal sequence. On the other hand, increasing the prediction horizon increase the computational time of the optimization process which make it impossible to be imple...
متن کاملA fuzzy mixed-integer goal programming model for a parallel machine scheduling problem with sequence-dependent setup times and release dates
This paper presents a new mixed-integer goal programming (MIGP) model for a parallel machine scheduling problem with sequence-dependent setup times and release dates. Two objectives are considered in the model to minimize the total weighted flow time and the total weighted tardiness simultaneously. Due to the com-plexity of the above model and uncertainty involved in real-world scheduling probl...
متن کاملPitfalls when using parallel streams in OMNeT++ simulations
By means of a simple OMNeT++ simulation scenario, which uses parallel streams of random numbers, we want to point out several technical pitfalls when applying different random number generators and using different initialization values for them. We describe shortcomings of the built-in random number generator (RNG) and describe traps when using modern RNGs. Quantitative and qualitative analyses...
متن کاملExtending INET framework for directional and asymmetrical wireless communications
This paper reports our work on extending the OMNeT++ INET Framework with a directional radio model, putting a special emphasis on the implementation of asymmetrical communications. We first analyze the original INET radio model, focusing on its design and components. Then we discuss the modifications that have been done to support directional communications. Our preliminary results show that th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2012