Combinatorial optimization: algorithms and complexity
Combinatorial optimization: algorithms and complexity
Dependability Modeling and Evaluation of Software Fault-Tolerant Systems
IEEE Transactions on Computers
Determining Redundancy Levels for Fault Tolerant Real-Time Systems
IEEE Transactions on Computers - Special issue on fault-tolerant computing
Scheduling Algorithms for Multiprogramming in a Hard-Real-Time Environment
Journal of the ACM (JACM)
Experimental evaluation of the impact of processor faults on parallel applications
SRDS '95 Proceedings of the 14TH Symposium on Reliable Distributed Systems
Real-Time Multiprocessor Systems: Performability Evaluation
Real-Time Multiprocessor Systems: Performability Evaluation
Best-effort decision-making for real-time scheduling
Best-effort decision-making for real-time scheduling
Performance-Related Reliability Measures for Computing Systems
IEEE Transactions on Computers
On Evaluating the Performability of Degradable Computing Systems
IEEE Transactions on Computers
IPDPS '02 Proceedings of the 16th International Parallel and Distributed Processing Symposium
Addressing Sporadic Contention on Shared Computing Clusters
HPCASIA '05 Proceedings of the Eighth International Conference on High-Performance Computing in Asia-Pacific Region
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This paper deals with object-oriented real-time dependable systems required to achieve the best usage of the resources, even under adverse circumstances as transient overloads or component failures. Various possible trade-offs among the different application requirements must be considered to allow a flexible management of system resources. On the basis of a simple formulation of the concept of object value in real-time systems we propose a performability metric that represents a suitable measure of system accomplishment level. A planner component is defined which is responsible for implementing a value-driven admission policy that maximizes the performability index and hence achieves the optimal utilization of available system resources. The numerical evaluation of a system organization taken as an example is performed for different load sets and various redundant execution techniques.