Application-Dependent Performability Evaluation of Fault-Tolerant Multiprocessors
نویسندگان
چکیده
Abstract A case study of performance and dependability evaluation of fault-tolerant multiprocessors is presented. Two specific architectures are analyzed taking into account system functionality, actual workloads, failures of system components as well as the inter-component dependencies. Since the evaluation of such complex systems has to be performed already during the design phase, simulation models are developed and used to provide insight into the system behavior and to uncover weak points and bottlenecks. Object-oriented software design and process-oriented simulation techniques are used for model construction allowing sophisticated performance and dependability analysis of massively parallel systems.1
منابع مشابه
Simulation-based Performability Evaluation of Fault-tolerant Multiprocessors
We present a case study of performance and dependability evaluation of fault-tolerant multiprocessors. A distributed shared-memory multiprocessor architecture providing faulttolerance is analyzed taking into account system functionalities, actual workloads, failures of system components as well as the inter-component dependences. Since the evaluation of such a complex system has to be performed...
متن کاملFault Injection Based Validation of Fault-Tolerant Multiprocessors
One of the most crucial tasks in the design of fault-tolerant computers is the validation of the builtin error detection and handling mechanisms. Predesign validation techniques, like performability modelling and analysis, often require such information as exact failure rates, which is usually unavailable for the user. Moreover, the majority of computer failures originate from transient faults,...
متن کاملComparative Performability Evaluation of RB, NVP and SCOP
An adaptive scheme for software fault-tolerance is evaluated from the point of view of performability, comparing it with previously published analyses of the more popular schemes, recovery blocks and multiple version programming. In the case considered, this adaptive scheme, "Self-Configuring Optimistic Programming" (SCOP), is equivalent to N-version programming in terms of the probability of d...
متن کاملA Unified Performability Evaluation Framework for Computer and Communication Systems A Unified Performability Evaluation Framework for Computer and Communication Systems
In this paper we discuss a unified approach towards model-based quantitative evaluation of both computer systems and communication systems. In the area of fault-tolerant computer systems, dependability evaluation has been recognized as being a topic of importance, both to judge a system on its merits and to provide trust in the actual dependability of the system. In communication systems, the n...
متن کاملPerformability analysis of guarded-operation duration: a translation approach for reward model solutions
Performability measures are often defined for analyzing the worth of fault-tolerant systems whose performance is gracefully degradable. Accordingly, performability evaluation is inherently well-suited for application of reward model solution techniques. On the other hand, the complexity of performability evaluation for solving engineering problems may prevent us from utilizing those techniques ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1996