An approach to the characterisation of parallel systems using a structured layered methodology is described here. The aim of this is to produce accurate performance predictions which maybe used to influence the choice of machines and investigate implementation trade-offs. The methodology described enables the separate characterisation of both application, and parallel machine to be developed in...

Performance Engineering uses multiple performance assessment tools depending on the state of the software and the amount of performance data available. This paper demonstrates how Web Services can be used to facilitate the use of modeling tools in a plug-and-play manner thus enabling the use of the tool best suited to the analysis. It describes the design and implementation of a prototype Web S...

Developing green propulsion concepts for aviation requires some changes in standard procedures for the preliminary aircraft design. Standard design procedures are not readily applicable to aircraft/rotorcraft that use multiple energy sources; innovative concepts like hybrid propulsion systems require new approaches in weight and performance prediction. In this paper the application of new metho...

Various papers have reported on the differential performance of virtual machine instances of the same type, and same supposed performance rating, in Public Infrastructure Clouds. It has been established that instance performance is determined in large part by the underlying hardware, and performance variation is due to the heterogeneous nature of large and growing Clouds. Currently, customers h...

Although there are many situations in which a model of application performance is valuable, performance modeling of parallel programs is not commonplace, largely because of the diiculty of developing accurate models of real applications executing on real multiprocessors. This paper describes a toolkit for performance tuning and prediction based on lost cycles analysis. Lost cycles analysis deco...

Despite construction of powerful parallel systems and networked computational grids, achieving a large fraction of peak performance for a range of applications has proven very diÆcult. In this paper, we describe the components of Delphi, an integrated performance measurement and prediction environment that places system design on a solid performance engineering basis.

The development of software tools for performance evaluation and modeling has been an active research area since the early years of computer science. In this paper, we offer a short overview of historical evolution of the field with an emphasis on popular performance modeling techniques such as queuing networks and Petri nets. A review of recent works that provide new perspectives to software t...

Performance prediction or forecasting sporting outcomes involves a great deal of insight into the particular area one is dealing with, and a considerable amount of intuition about the factors that bear on such outcomes and performances. The mathematical Theory of Evidence offers representation formalisms which grant experts a high degree of freedom when expressing their subjective beliefs in th...

â  using of prediction models is one of the methods of financial performance prediction. financial ratios are employed as predictive variable in prediction models. the main purpose of this study is to compare the incremental information content of accrual and cash ratios for prediction and evaluation of the financial performance of business entities by data mining models. in align with research...