Chaos in computer performance | Zendy

Hugues Berry | Zendy; Daniel Gracia Pérez | Zendy; Olivier Temam | Zendy

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Chaos in computer performance

Author(s) -

Hugues Berry,

Daniel Gracia Pérez,

Olivier Temam

Publication year - 2006

Publication title -

chaos an interdisciplinary journal of nonlinear science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.971

H-Index - 113

eISSN - 1089-7682

pISSN - 1054-1500

DOI - 10.1063/1.2159147

Subject(s) - aperiodic graph , computer science , chaos (operating system) , nonlinear system , sensitivity (control systems) , variable (mathematics) , computer engineering , computer architecture , parallel computing , electronic engineering , operating system , engineering , mathematics , physics , quantum mechanics , combinatorics , mathematical analysis

Modern computer microprocessors are composed of hundreds of millions oftransistors that interact through intricate protocols. Their performance duringprogram execution may be highly variable and present aperiodic oscillations. Inthis paper, we apply current nonlinear time series analysis techniques to theperformances of modern microprocessors during the execution of prototypicalprograms. Our results present pieces of evidence strongly supporting that thehigh variability of the performance dynamics during the execution of severalprograms display low-dimensional deterministic chaos, with sensitivity toinitial conditions comparable to textbook models. Taken together, these resultsshow that the instantaneous performances of modern microprocessors constitute acomplex (or at least complicated) system and would benefit from analysis withmodern tools of nonlinear and complexity science

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