• Conference Object  

      Building and validating a reduced TPC-H benchmark 

      Vandierendonck, Hans; Trancoso, Pedro (2006)
      The properties of computer system such as performance, energy, reliability, etc. are commonly evaluated by running benchmarks. However, the benchmarking process is complicated to set-up and use and running the benchmarks ...
    • Article  

      Categorized sliding window in streaming data management systems 

      Papas, Marios; Larriba-Pey, J. -L; Trancoso, Pedro (2008)
      For many applications, data is collected at very large rates from various sources. Applications that produce results from this data have a requirement for very efficient processing in order to achieve timely decisions. An ...
    • Conference Object  

      Characterization of computational grid resources using low-level benchmarks 

      Tsouloupas, George; Dikaiakos, Marios D. (2006)
      An important factor that needs to be taken into account by end-users and systems (schedulers, resource brokers, policy brokers) when mapping applications to the Grid is the performance capacity of hardware resources attached ...
    • Article  

      Deterministic planning in the fifth international planning competition: PDDL3 and experimental evaluation of the planners 

      Gerevini, A. E.; Haslum, P.; Long, D.; Saetti, A.; Dimopoulos, Yannis (2009)
      The international planning competition (IPC) is an important driver for planning research. The general goals of the IPC include pushing the state of the art in planning technology by posing new scientific challenges, ...
    • Conference Object  

      Distributed network size estimation and average degree estimation and control in networks isomorphic to directed graphs 

      Shames, I.; Charalambous, T.; Hadjicostis, Christoforos N.; Johansson, M. (2012)
      Many properties of interest in graph structures are based on the nodes' average degree (i.e., the average number of edges incident to/from each node). In this work, we present asynchronous distributed algorithms, based on ...
    • Conference Object  

      Dynamic split: Flexible border between instruction and data cache 

      Trancoso, Pedro (2005)
      Current microprocessors are optimized for the average use. Nevertheless, it is known that different applications impose different demands on the system. This work focuses on the reconfiguration of the first-level caches. ...
    • Article  

      Exploiting course grain parallelism from FORTRAN by mapping it to IF1 

      Lachanas, Adrianos; Evripidou, Paraskevas (1998)
      FORTRAN, a classical imperative language is mapped into IF1, a machine-independent dataflow graph description language with Single Assingment Semantics (SAS). Parafrase 2 (P2) is used as the front-end of our system. It ...
    • Article  

      Grid benchmarking: Vision, challenges, and current status 

      Dikaiakos, Marios D. (2007)
      Grid benchmarking is an important and challenging topic of Grid computing research. In this paper, we present an overview of the key challenges that need to be addressed for the integration of benchmarking practices, ...
    • Conference Object  

      Grid resource selection by application benchmarking for computational haemodynamics applications 

      Tirado-Ramos, A.; Tsouloupas, George; Dikaiakos, Marios D.; Sloot, P. (2005)
      Grid benchmarking for improved computational resource selection can shed a light for improving the performance of computationally intensive applications. In this paper we report on a number of experiments with a biomedical ...
    • Article  

      GridBench: A tool for the interactive performance exploration of Grid infrastructures 

      Tsouloupas, George; Dikaiakos, Marios D. (2007)
      As Grids rapidly expand in size and complexity, the task of benchmarking and testing, interactive or unattended, quickly becomes unmanageable. In this article we describe the difficulties of testing/benchmarking resources ...
    • Conference Object  

      GridBench: A workbench for Grid benchmarking 

      Tsouloupas, George; Dikaiakos, Marios D. (2005)
      In this article we present the GridBench, an extensible tool for benchmarking and testing Grid resources. We give an overview of the GridBench services and tools that provide easy invocation of benchmarks and management ...
    • Conference Object  

      Heterogeneous grid computing: Issues and early benchmarks 

      Kenny, E.; Coghlan, B.; Tsouloupas, George; Dikaiakos, Marios D.; Walsh, J.; Childs, S.; O'Callaghan, D.; Quigley, G. (2005)
      A heterogeneous implementation of the current LCG2/EGEE grid computing software is supported in the Grid-Ireland infrastructure. The porting and testing of the current software version of LCG2 is presented for different ...
    • Conference Object  

      Heterogeneous- and NUMA-aware scheduling for many-core architectures 

      Petrides, P.; Trancoso, Pedro (Association for Computing Machinery, Inc, 2017)
      As the number of cores increases in a single chip processor, several challenges arise: wire delays, contention for out-ofchip accesses, and core heterogeneity. In order to address these issues and the applications demands, ...
    • Conference Object  

      Information quality evaluation for grid information services 

      Xing, Wei; Corcho, O.; Goble, C.; Dikaiakos, Marios D. (Springer Science and Business Media, LLC, 2007)
      The quality of the information provided by information services deployed in the EGEE production testbed differs from one system to another. Under the same conditions, the answers provided for the same query by different ...
    • Conference Object  

      Modeling the implications of DRAM failures and protection techniques on datacenter TCO 

      Nikolaou, Panagiota; Sazeides, Yiannakis; Ndreu, L.; Kleanthous, Marios M. (IEEE Computer Society, 2015)
      Total Cost of Ownership (TCO) is a key optimization metric for the design of a datacenter. This paper proposes, for the first time, a framework for modeling the implications of DRAM failures and DRAM error protection ...
    • Conference Object  

      A performance analysis framework for mobile agent systems 

      Dikaiakos, Marios D.; Samaras, George S. (Springer Verlag, 2001)
      In this paper we propose a novel performance analysis ap- proach that can be used to gauge quantitatively the performance char- acteristics of different mobile-agent platforms. We materialize this ap- proach as a hierarchical ...
    • Article  

      Reducing TPC-H benchmarking time 

      Trancoso, Pedro; Adamou, Christodoulos; Vandierendonck, Hans (2005)
      Benchmarking a system can be a time consuming operation. Therefore, many researchers have developed kernels and microbenchmarks. Nevertheless, these programs are not able to capture the details of a full application. One ...
    • Article  

      Robust Direct Adaptive Regulation of Unknown Disturbances in the Vicinity of Low-Damped Complex Zeros-Application to AVC 

      Castellanos Silva, A.; Landau, I. D.; Ioannou, Petros A. (2016)
      Adaptive feedback control approaches have been widely used to address the issue of rejecting multiple narrow band disturbances with unknown and time-varying characteristics (frequency, phase, and amplitude) in active ...
    • Conference Object  

      Towards a versatile Surface Electromyography classification system 

      Barmpakos, D.; Strimpakos, N.; Karkanis, S. A.; Pattichis, Constantinos S. (Springer Verlag, 2016)
      The use of sEMG signals for the movement classification plays an important role in various applications from robotics to effective prosthetic limbs control. The performance of the classification scheme is severely influenced ...
    • Conference Object  

      Towards the definition of an e-government benchmarking status methodology 

      Germanakos, Panagiotis; Christodoulou, Eleni; Samaras, George S. (2006)
      The main concern of a city that wants to adapt e-Government systems promoting online processes, services and participation is to identify its IT legacy systems and technological infrastructure and to analyze and identify ...