Real-Time and Real-Fast Performance of General-Purpose and Real-Time Operating Systems in Multithreaded Physical Simulation of Complex Mechanical Systems
Joint Authors
Mundo, Domenico
Toso, Alessandro
Garre, Carlos
Gubitosa, Marco
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-05-22
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Physical simulation is a valuable tool in many fields of engineering for the tasks of design, prototyping, and testing.
General-purpose operating systems (GPOS) are designed for real-fast tasks, such as offline simulation of complex physical models that should finish as soon as possible.
Interfacing hardware at a given rate (as in a hardware-in-the-loop test) requires instead maximizing time determinism, for which real-time operating systems (RTOS) are designed.
In this paper, real-fast and real-time performance of RTOS and GPOS are compared when simulating models of high complexity with large time steps.
This type of applications is usually present in the automotive industry and requires a good trade-off between real-fast and real-time performance.
The performance of an RTOS and a GPOS is compared by running a tire model scalable on the number of degrees-of-freedom and parallel threads.
The benchmark shows that the GPOS present better performance in real-fast runs but worse in real-time due to nonexplicit task switches and to the latency associated with interprocess communication (IPC) and task switch.
American Psychological Association (APA)
Garre, Carlos& Mundo, Domenico& Gubitosa, Marco& Toso, Alessandro. 2014. Real-Time and Real-Fast Performance of General-Purpose and Real-Time Operating Systems in Multithreaded Physical Simulation of Complex Mechanical Systems. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-510324
Modern Language Association (MLA)
Garre, Carlos…[et al.]. Real-Time and Real-Fast Performance of General-Purpose and Real-Time Operating Systems in Multithreaded Physical Simulation of Complex Mechanical Systems. Mathematical Problems in Engineering No. 2014 (2014), pp.1-14.
https://search.emarefa.net/detail/BIM-510324
American Medical Association (AMA)
Garre, Carlos& Mundo, Domenico& Gubitosa, Marco& Toso, Alessandro. Real-Time and Real-Fast Performance of General-Purpose and Real-Time Operating Systems in Multithreaded Physical Simulation of Complex Mechanical Systems. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-14.
https://search.emarefa.net/detail/BIM-510324
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-510324