Título:
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A case for resource-conscious out-of-order processors
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Autor/a:
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Cristal Kestelman, Adrián; Martínez, José F; Llosa Espuny, José Francisco; Valero Cortés, Mateo
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Otros autores:
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Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CAP - Grup de Computació d'Altes Prestacions |
Abstract:
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Modern out-of-order processors tolerate long-latency memory operations by supporting a large number of in-flight instructions. This is achieved in part through proper sizing of critical resources, such as register files or instruction queues. In light of the increasing gap between processor speed and memory latency, tolerating upcoming latencies in this way would require impractical sizes of such critical resources.To tackle this scalability problem, we make a case for resource-conscious out-of-order processors. We present quantitative evidence that critical resources are increasingly underutilized in these processors. We advocate that better use of such resources should be a priority in future research in processor architectures. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Informàtica::Arquitectura de computadors -Microprocessors -- Design and construction -Out-of-order processor -Memory latency -Instruction-level parallelism -Resource utilization -Checkpointing -Microprocessadors -- Disseny i construcció |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Artículo |
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