TRIDENT
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Architecture and Real Time Systems Lab University of Massachusetts, Amherst * Provides Network Measures which quantify how network parameters including topology and routing techniques effect the reliability of a given system * Provides Computer Measures which quantify how parameters such as task allocation, scheduling, check pointing and fault recovery algorithms affect the system’s reliability * GUI part of simulator allows user to draw the topology and specify the task sets * Output of the simulator is presented in the form of graph between various parameters TRIDENT
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TRIDENT. * Provides Network Measures which quantify how network parameters including topology and routing techniques effect the reliability of a given system - PowerPoint PPT Presentation
Transcript of TRIDENT
Architecture and Real Time Systems Lab
University of Massachusetts, Amherst
* Provides Network Measures which quantify how network parameters including topology and routing techniques effect the reliability of a given system
* Provides Computer Measures which quantify how parameters such as task allocation, scheduling, check pointing and fault recovery algorithms affect the system’s reliability
* GUI part of simulator allows user to draw the topology and specify the task sets
* Output of the simulator is presented in the form of graph between various parameters
TRIDENT
Architecture and Real Time Systems Lab
University of Massachusetts, Amherst
Calculating Computer Measures for Robotics Application
Loading environment file for robotics application
Simulator is running nowGraphs indicating computer measures are produced
Architecture and Real Time Systems Lab
University of Massachusetts, Amherst
Computer Measures for Robotics Application
Minimum Deadline vs. Surge size for various number of processors
Recovery Time vs. Surge size for various number of processors
Architecture and Real Time Systems Lab
University of Massachusetts, Amherst
Computer Measures for Robotics Application
System Recovery Time vs. Surge Orientation Processor for various number of processors
Processor Recovery Time vs. Processor ID for various number of processors
Architecture and Real Time Systems Lab
University of Massachusetts, Amherst
Calculating Network and Computer Measures for Avionics Application
Loading environment file for Avionics application
Simulator is running nowGraphs indicating network measures are produced
Simulator is running now to get computer measures
Graphs indicating computer measures are produced
Architecture and Real Time Systems Lab
University of Massachusetts, Amherst
Network Measures for Avionics Application
Diameter vs. Link Failure Probability for various networks
Probability of Disconnection vs. Link Failure Probability for various networks
Architecture and Real Time Systems Lab
University of Massachusetts, Amherst
Network Measures for Avionics Application
Node Pair Distance vs. Link Failure Probability for various networks
Frequency of failure and component size vs. Link Failure Probability for various networks
Architecture and Real Time Systems Lab
University of Massachusetts, Amherst
Minimum Deadline vs. Surge size for various Tasks sets
Recovery Time vs. Surge size for various Tasks sets
Computer Measures for Avionics Application
Architecture and Real Time Systems Lab
University of Massachusetts, Amherst
System Recovery Time vs. Surge Origination Processor for various Tasks sets
Processor Recovery Time vs. Processor ID for various Tasks sets
Computer Measures for Avionics Application
Architecture and Real Time Systems Lab
University of Massachusetts, Amherst
Summary
The new measures can be used to evaluate the effect of
* Task Allocation algorithms
* Scheduling algorithms
* Interconnection topologies
* Communication protocols
* Failure recovery mechanisms
on real-time dependability
Our tool, TRIDENT, calculates the new dependability measures and presents in graphical form
