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Low-complexity distributed issue queue

Abella, J. ; Gonzalez, A.

10th International Symposium on High Performance Computer Architecture (HPCA'04), 2004, p.73-82

Los Alamitos CA: IEEE

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Título:
Low-complexity distributed issue queue
Autor: Abella, J. ; Gonzalez, A.
Assuntos: Applied sciences ; Arquitectura de computadors ; CADCAM ; Clocks ; Computational complexity ; Computer aided manufacturing ; Computer architecture ; Computer science; control theory; systems ; Computer systems and distributed systems. User interface ; Consum d'energia ; Cooling ; Delay ; Dispatching ; Energy consumption ; Exact sciences and technology ; File organisation ; Formal logic ; Informàtica ; Instruction sets ; Logic ; Microprocessadors ; Microprocessors ; Parallel architectures ; Pipelines ; Power dissipation ; Software ; Storage allocation ; Àrees temàtiques de la UPC
É parte de: 10th International Symposium on High Performance Computer Architecture (HPCA'04), 2004, p.73-82
Descrição: As technology evolves, power density significantly increases and cooling systems become more complex and expensive. The issue logic is one of the processor hotspots and, at the same time, its latency is crucial for the processor performance. We present a low-complexity FP issue logic (MB/spl I.bar/distr) that achieves high performance with small energy requirements. The MB/spl I.bar/distr scheme is based on classifying instructions and dispatching them into a set of queues depending on their data dependences. These instructions are selected for issuing based on an estimation of when their operands will be available, so the conventional wakeup activity is not required. Additionally, the functional units are distributed across the different queues. The energy required by the proposed scheme is substantially lower than that required by a conventional issue design, even if the latter has the ability of waking-up only unready operands. MB/spl I.bar/distr scheme reduces the energy-delay product by 35% and the energy-delay product by 18% with respect to a state-of-the-art approach.
Editor: Los Alamitos CA: IEEE
Idioma: Inglês

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Low-complexity distributed issue queue

Abella, J. ; Gonzalez, A.

Los Alamitos CA: IEEE

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