e-journal

Diversity: A Design Goal for Heterogeneous Processors

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A growing number of processors have CPU cores that implement the same instruction set architecture (ISA) using different microarchitectures. The underlying motivation for single-ISA heterogeneity is that a diverse set of cores can enable runtime flexibility. Modern processors are subject to strict power budgets, and heterogeneity provides the runtime scheduler with more latitude to decide the level of performance a program should have based on the amount of power that can be spent. We argue that selecting a diverse set of heterogeneous cores to enable flexible operation at runtime is a non-trivial problem due to diversity in program behavior. We further show that common evaluation methods lead to false conclusions about diversity. Finally, we suggest the KS statistical test as an evaluation metric. The KS test is the first step toward a heterogeneous design methodology that optimizes for runtime flexibility.

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Informasi Detail

Judul Seri

Computer Architecture

No. Panggil

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Penerbit

Sweden : IEEE Computer Architecture Letters., 2015

Deskripsi Fisik

IEEE Computer Architecture Letters

Bahasa

English

ISBN/ISSN

DOI 10.1109/LCA.2015

Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

ARSITEKTUR KOMPUTER

Info Detail Spesifik

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Pernyataan Tanggungjawab

deliza

Versi lain/terkait

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