performance evaluation is one of the important components of each organization, and educational organizations are not the exceptions. teachers are believed by many researchers as the single most important factor influencing student academic success or failure. therefore, they need to be at the center of attempts to improve or reform the educational system of any country. considering the pivotal...

Abstract Because of the increasing complexities systems and applications, performance many traditional HPC benchmarks, such as HPL or HPCG, no longer correlates strongly with actual real applications. To address discrepancy between simple benchmarks to better understand application systems, some metrics use a set either applications mini In particular, Sustained System Performance (SSP) metric ...

During the last years a great number of Query Performance Prediction methods have been proposed. However, this explosion of prediction method proposals have not been paralleled by an in-depth study of suitable methods to evaluate these estimations. In this paper we analyse the current approaches to evaluate Query Performance Prediction methods, highlighting some limitations they present. We als...

We present an overview of current research in performance modeling, focusing on efforts underway in the Performance Evaluation Research Center (PERC). Using some new techniques, we are able to construct performance models that can be used to project the sustained performance of large-scale scientific programs on different systems, over a range of job and system sizes. Such models can be used by...