This report presents LoadBuilder, a distributed environment designed to provide a portable way of empirically studying the effects of various kinds of workloads in local area networks of heterogeneous workstations. This tool is especially intended to build distributed experimentations including composite workload setting, statistics collecting...
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November 1996 (v1)ReportUploaded on: December 4, 2022
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January 15, 1999 (v1)Publication
In this thesis, we focus on technics and tools that help in building and optimizing parallel and distributed applications for networks and clusters of workstations. The first problem we study is dynamic load balancing in a strongly heterogeneous environment: an efficient dynamic load balancing strategy requires first to evaluate and compare the...
Uploaded on: December 3, 2022 -
March 5, 2013 (v1)Conference paper
A rigorous scientific methodology has to follow a number of supposedly well-known principles. These principles come from as far as the ancient Greece where they started to be established by Philosophers like Aristotle; later noticeable contributions include principles edicted by Descartes, and more recently Karl Popper. All disciplines of...
Uploaded on: October 11, 2023 -
2005 (v1)Report
This report describes work in progress to initiate the collaborative development of a new software platform for discrete-event simulation studies, the Open Simulation Architecture (OSA). OSA is primarily designed to be a federating platform for the simulation community: it is designed to favour the integration of new or existing contributions...
Uploaded on: December 3, 2022 -
December 9, 2012 (v1)Conference paper
Reproducibility of experiments is the pillar of a rigorous scientific approach. However, simulation-based experiments often fail to meet this fundamental requirement. In this paper, we first revisit the definition of reproducibility in the context of simulation. Then, we give a comprehensive review of issues that make this highly desirable...
Uploaded on: December 3, 2022 -
February 8, 2007 (v1)Conference paper
In this paper we show that Fractal, a generic component model coming from the Component-Based Software Engineering (CBSE) community, meets most of the functional expectations identified so far in the simulation community for component-based modeling and simulation. We also demonstrate that Fractal offers additional features that have not yet...
Uploaded on: February 28, 2023 -
March 5, 2013 (v1)Conference paper
A rigorous scientific methodology has to follow a number of supposedly well-known principles. These principles come from as far as the ancient Greece where they started to be established by Philosophers like Aristotle; later noticeable contributions include principles edicted by Descartes, and more recently Karl Popper. All disciplines of...
Uploaded on: December 3, 2022 -
July 1, 2011 (v1)Journal article
This two-part article addresses the issues concerning the building of new simulation software by either reusing existing general purpose software products and concepts or by writting the simulation software from scratch. The first part, published in the previous issue of the M&S Magazine, described a selected list of existing software that...
Uploaded on: December 3, 2022 -
May 28, 2006 (v1)Conference paper
This paper describes work in progress to initiate the collaborative development of a new software platform for discrete-event simulation studies, the Open Simulation Architecture (OSA). OSA is primarily intended to be a federating platform for the simulation community: it is designed to favour the integration of new or existing contributions at...
Uploaded on: February 28, 2023 -
December 2014 (v1)Book section
Computer simulation is used for many purposes and is one of the first applications of computer programming. Given this long history and the many intended use of the simulation software written so far, writing about simulation software architectures without an additional strong point of focus would certainly turn into a challenging and endless...
Uploaded on: March 25, 2023 -
July 1, 2011 (v1)Journal article
This two-part article addresses the issues concerning the building of new simulation software by either reusing existing general purpose software products and frameworks or by writing the simulation software from scratch. As a means of discussing the use of existing software, this first part describes a selected list of such existing software:...
Uploaded on: December 3, 2022 -
September 17, 2008 (v1)Conference paper
In this paper, we introduce new techniques in the field of simulation to help in the process of building advanced simulation scenarios using preexisting simulation components. The first technique consists in using the Aspect Oriented Programming paradigm to capture some of the private data of an existing model component. The second one is an...
Uploaded on: December 3, 2022 -
December 2011 (v1)Conference paper
In order to study the performance of scheduling algorithms, simulators of parallel and distributed applications need accurate models of the application's behavior during execution. For this purpose, traces of low-level events collected during the actual execution of real applications are needed. Collecting such traces is a difficult task due to...
Uploaded on: December 4, 2022 -
December 13, 2009 (v1)Conference paper
OSA (Open Simulation Architecture) is a collaborative platform for component-based discrete-event simulation. It has been created to support both M&S studies and research on M&S techniques and methodology. The OSA project started from the observation that despite no single simulation software seems to be perfect, most of the elements required...
Uploaded on: December 3, 2022 -
2010 (v1)Book
no abstract
Uploaded on: December 4, 2022 -
April 4, 2011 (v1)Conference paper
ADL are particularly well suited for component-based model frameworks that support hierarchical composition, such as DEVS with coupled models. In this paper we present some features found in the ADL of another hierarchical component model, namely the Fractal Component Model (FCM). To our best knowledge, these features are not yet available in...
Uploaded on: December 3, 2022 -
March 19, 2012 (v1)Conference paper
In order to evaluate the performance and estimate the resource usage of peer-to-peer backup systems, it is important to analyze the time they spend in storing, retrieving and keeping the redundancy of the stored files. The analysis of such systems is difficult due to the random behavior of the peers and the variations of network conditions....
Uploaded on: December 3, 2022 -
March 5, 2013 (v1)Conference paper
This paper presents NetStep, a prototype for the distributed simulation of very large scale network simulations, such as the simulation of peer-to-peer applications. We use simulation micro-steps as a means for optimizing the overlap of communications and computations, without changing the original event-driven model. As a consequence, NetStep...
Uploaded on: December 4, 2022 -
March 17, 2014 (v1)Conference paper
This paper addresses the problems related to data types used for time representation in DEVS, a formalism for the specification and simulation of discrete-event systems. When evaluating a DEVS simulation model into an actual com- puter simulation program, a data type is required to hold the virtual time of the simulation and the time elapsed in...
Uploaded on: March 25, 2023 -
December 13, 2009 (v1)Conference paper
The development of M&S products often seems to be driven by need: people start coding because they are interested in either a concrete simulation study, or they are interested in a (single) research subject of M&S methodology. We claim that discussing, designing, developing, and comparing M&S products should be based on software engineering...
Uploaded on: December 3, 2022 -
August 24, 2015 (v1)Conference paper
The time-line in Discrete Event Simulation (DES) is a sequence of events defined in a numerable subset of R +. When it comes from an experimental measurement, the timing of these events has a limited precision. This precision is usually well-known and documented for each instruments and procedures used for collecting experimental datas....
Uploaded on: February 28, 2023 -
2009 (v1)Report
This report presents our on-going work on a new system designed to provide a continuous network connectivity to communicating devices located on-board a vehicle moving at "high speed" with a predictable trajectory such as trains, subways or buses. The devices on-board the vehicle form a sub-network called the "in-motion network". This system we...
Uploaded on: December 3, 2022 -
March 31, 2010 (v1)Report
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...
Uploaded on: December 3, 2022 -
March 6, 2009 (v1)Conference paper
Realistic simulation of 802.11 traffic subject to high interference, for example in dense urban areas, is still an open issue. Many studies do not address the interference problem properly. In this paper, we present our preliminary work on a method to recreate interference traffic from real measurements. The method consists in capturing real...
Uploaded on: December 3, 2022 -
March 15, 2010 (v1)Conference paper
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...
Uploaded on: December 4, 2022