Hard Real-Time Systems with Stochastic Execution Times: Deterministic and Probabilistic Guarantees

2005 ◽  
Vol 27 (2) ◽  
Author(s):  
R. Santos ◽  
J. Santos ◽  
J. Orozco
Keyword(s):  
Real Time ◽  
Real Time Systems ◽  
Execution Times ◽  
Hard Real Time ◽  
Time Systems

scholarly journals PSO based optimization of worst-case execution time for ASIP application

2018 ◽  
Vol 7 (3.3) ◽  
pp. 252
Author(s):  
Mood Venkanna ◽  
Rameshwar Rao ◽  
P Chandra Sekhar
Keyword(s):  
Real Time ◽  
Upper Bounds ◽  
Real Time Systems ◽  
Worst Case ◽  
Reconfigurable Processor ◽  
Worst Case Execution Time ◽  
Execution Times ◽  
Hard Real Time ◽  
Time Systems ◽  
Time Bounds

Industrial requires hard real-time systems for safety and critical applications like automotive, Aeronautics, manufacturing control and train industries. Hard Real-Time Systems’ embedded controllers are with expectation of complete the tasks within a certain time bounds reliably including task scheduling. The estimation of upper bound limits corresponding to the execution times is often termed as the Worst-Case Execution Times (WCETs). It is an essential step in developing and validating the hard real-time systems. Particularly, the upper bounds need to satisfy these constraints related to the execution times. However, it is often not feasible many times to set upper bounds on execution times for programs. In present work, the problem of choosing reconfigurable Custom Instructions (CIs) is accomplished by optimizing the WCET corresponding to an application. This issue is designed using Particle Swarm Optimization (PSO) based program for a path analysis. The work emphasizes on the effectiveness of optimizing the WCET when applied to a reconfigurable processor. It evaluates a compound application of multimedia with a host of reconfigurable CIs corresponding to a number of hardware parameters.  

A Parallelization Approach for Hard Real-Time Systems and Its Application on Two Industrial Programs

2016 ◽  
Vol 44 (6) ◽  
pp. 1296-1336 ◽  
Author(s):  
Martin Frieb ◽  
Ralf Jahr ◽  
Haluk Ozaktas ◽  
Andreas Hugl ◽  
Hans Regler ◽  
...  
Keyword(s):  
Real Time ◽  
Real Time Systems ◽  
Hard Real Time ◽  
Time Systems
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