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Trace-level speculative multithreaded architecture

Molina Clemente, Carlos / González Colás, Antonio María / Tubella Murgadas, Jordi

This paper presents a novel microarchitecture to exploit trace-level speculation by means of two threads working cooperatively in a speculative and non-speculative way respectively. The architecture presents two main benefits: (a) no significant penalties are introduced in the presence of a misspeculation and (b) any type of trace predictor can work together with this proposal. In this way, aggressive trace predictors can be incorporated since misspeculations do not introduce significant penalties. We describe in detail TSMA (trace-level speculative multithreaded architecture) and present initial results to show the benefits of this proposal. We show how simple trace predictors achieve significant speed-up in the majority of cases. Results of a simple trace speculation mechanism show an average speed-up of 16%. ; Peer Reviewed ; Postprint (published version)

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Trace-level speculative multithreaded architecture

Molina Clemente, Carlos / González Colás, Antonio María / Tubella Murgadas, Jordi

This paper presents a novel microarchitecture to exploit trace-level speculation by means of two threads working cooperatively in a speculative and non-speculative way respectively. The architecture presents two main benefits: (a) no significant penalties are introduced in the presence of a misspeculation and (b) any type of trace predictor can work together with this proposal. In this way, aggressive trace predictors can be incorporated since misspeculations do not introduce significant penalties. We describe in detail TSMA (trace-level speculative multithreaded architecture) and present initial results to show the benefits of this proposal. We show how simple trace predictors achieve significant speed-up in the majority of cases. Results of a simple trace speculation mechanism show an average speed-up of 16%. ; Peer Reviewed ; Postprint (published version)

Trace-level speculative multithreaded architecture

Molina Clemente, Carlos / González Colás, Antonio María / Tubella Murgadas, Jordi

This paper presents a novel microarchitecture to exploit trace-level speculation by means of two threads working cooperatively in a speculative and non-speculative way respectively. The architecture presents two main benefits: (a) no significant penalties are introduced in the presence of a misspeculation and (b) any type of trace predictor can work together with this proposal. In this way, aggressive trace predictors can be incorporated since misspeculations do not introduce significant penalties. We describe in detail TSMA (trace-level speculative multithreaded architecture) and present initial results to show the benefits of this proposal. We show how simple trace predictors achieve significant speed-up in the majority of cases. Results of a simple trace speculation mechanism show an average speed-up of 16%. ; Peer Reviewed ; Postprint (published version)

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Title:

Trace-level speculative multithreaded architecture

Contributors:

Molina Clemente, Carlos (author) / González Colás, Antonio María (author) / Tubella Murgadas, Jordi (author) / Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors / Universitat Politècnica de Catalunya. ARCO - Microarquitectura i Compiladors

Publication date:

2002-01-01

DOI:

https://doi.org/10.1109/ICCD.2002.1106802

Type of media:

Miscellaneous

Type of material:

Electronic Resource

Language:

English

Keywords:

Microprocessors , Microprocessadors , Arquitectura d'ordinadors , Simultaneous multithreading processors , Computer architecture , Àrees temàtiques de la UPC::Informàtica::Arquitectura de computadors , Multi-threading

Classification:

DDC: 720 / 005

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