Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloModeling performance of heterogeneous parallel computing systems
Anno di pubblicazione1999
  • Elettronico
  • Cartaceo
Autore/iClematis A.; Corana A.
Affiliazioni autoriIMA-CNR, Via de Marini 6, 16149, Genova, Italy; ICE-CNR, Via de Marini 6, 16149, Genova, Italy
Autori CNR e affiliazioni
  • inglese
AbstractWe analyze and model the performance of heterogeneous parallel computing systems, where in general each node has a different computing power. The main features of our approach are: a simple but quite rigorous analysis; an `energetic' perspective on performance analysis, using concepts like the useful work carried out by each node, the work lost due to the various sources of overhead, and the local and global efficiencies, both for dedicated and non-dedicated environments. Although we carry out the analysis having workstation networks in mind, in the first part of the paper we try to maintain maximum generality, without introducing any constraint on the kind of interconnection between nodes and communication speed. This general framework can be applied to different specific situations, provided supplementary assumptions are feasible and values of system and application dependent parameters are available. In the second part the focus of analysis narrows to consider systems with the same communication speed between each pair of nodes, as it occurs for example with workstations connected by switched networks. We examine in this case a class of problems for which it is possible to define an efficiency worsening factor related to the degree of heterogeneity.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da1131
Pagine a1145
Pagine totali-
RivistaParallel computing
Attiva dal 1984
Editore: North-Holland : Amsterdam - [poi] Elsevier Science [S.l.]
Paese di pubblicazione: Paesi Bassi
Lingua: inglese
ISSN: 0167-8191
Titolo chiave: Parallel computing
Titolo proprio: Parallel computing.
Titolo abbreviato: Parallel comput.
Numero volume della rivista25
Fascicolo della rivista9
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)
  • Scopus (Codice:2-s2.0-0032691340)
  • ISI Web of Science (WOS) (Codice:000082647700004)
Parole chiaveperformance analysis; performance modeling; heterogeneous parallel systems; networks of workstations; SPMD applications
Link (URL, URI)
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — IEIIT - Sede secondaria di Genova
Moduli CNR-
Progetti Europei-
  • Modeling performance of heterogeneous parallel computing systems