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Titolo:
A SCALABILITY TEST FOR PARALLEL CODE
Autore:
LYON G; KACKER R; LINZ A;
Indirizzi:
NATL INST STAND & TECHNOL,DIV ADV SYST,B364-223 GAITHERSBURG MD 20899 NATL INST STAND & TECHNOL,DIV STAT ENGN GAITHERSBURG MD 20899
Titolo Testata:
Software, practice & experience
fascicolo: 12, volume: 25, anno: 1995,
pagine: 1299 - 1314
SICI:
0038-0644(1995)25:12<1299:ASTFPC>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Keywords:
DESIGNED EXPERIMENTS; MIMD SCALABILITY; PARALLEL PROCESSING; PERFORMANCE EVALUATION; SENSITIVITY ANALYSIS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
CompuMath Citation Index
Science Citation Index Expanded
Citazioni:
10
Recensione:
Indirizzi per estratti:
Citazione:
G. Lyon et al., "A SCALABILITY TEST FOR PARALLEL CODE", Software, practice & experience, 25(12), 1995, pp. 1299-1314

Abstract

Code scalability, crucial on any parallel system, determines how wellparallel code avoids becoming a bottleneck as its host computer is made larger. The scalability of computer code can be estimated by statistically designed experiments that empirically approximate a multivariate Taylor expansion of the code's execution response function, Each suspected code bottleneck corresponds to a first-order term in the expansion, the coefficient for that term indicating how sensitive executionis to changes in the suspect location, However, it is the expansion coefficients for second-order interactions between code segments and the number of processors that are fundamental to discovering which program elements impede parallel speedup. A new, unified view of these second-order coefficients yields an informal relative scalability test of high utility in code development. Discussion proceeds through actual examples, including a straightforward illustration of the test applied to SLALOM, a complex, multiphase benchmark, A quick graphical shortcutmakes the scalability test readily accessible,

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 18:18:42