Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloPerformance evaluation of the Caltech hypercube multiprocessing system
Anno di pubblicazione1988
  • Elettronico
  • Cartaceo
Autore/iA. Corana; C. Martini; M. Morando; S. Ridella
Affiliazioni autoriICE-CNR, Genova
Autori CNR e affiliazioni
  • inglese
AbstractA Caltech hypercube has been characterized using known methods for obtaining performance figures from a MIMD computer. Speed-up, efficiency and s_1/2 parameter have been evaluated versus the physical problem dimension. The considered problem, the solution of the discretized Laplace equation with assigned boundary potential, permits variation of the computation/communication load ratio, varying the number of spatial points assigned to each processor. The P hypercube processors were mapped on a square, two-dimensional lattice, in order to obtain an Illiac IV-like configuration, and each of them was assigned to a square portion of the problem with N*N/P spatial points. The problem was studied on a simulator kindly supplied from Caltech and installed on a VAX-11/730 with VMS 3.4. The solution was implemented twice, using two different communication protocols. Tests were carried on directly on a Mark II 8 MHz 32 nodes machine at Caltech and run times were measured. Finally, the results were fitted in order to obtain experimental expressions for the various involved times; from these expressions, after an agreement check with the measured data, performance figures were evaluated.
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da31
Pagine a33
Pagine totali-
RivistaInternational journal of mini & microcomputers
Attiva dal 1978 al 1996
Editore: Acta Press. - Calgary, Alta.
Paese di pubblicazione: Canada
Lingua: inglese
ISSN: 0702-0481
Titolo chiave: International journal of mini & microcomputers
Titolo abbreviato: Int. j. mini microcomput.
Numero volume della rivista10
Fascicolo della rivista2
Verificato da refereeSì: Internazionale
Stato della pubblicazionePublished version
Indicizzazione (in banche dati controllate)-
Parole chiaveparallel computers; Caltech hypercube; performance evaluation; discretized Laplace equation
Link (URL, URI)
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IEIIT — IEIIT - Sede secondaria di Genova
Moduli CNR-
Progetti Europei-
  • Performance evaluation of the Caltech hypercube multiprocessing system