Evaluation of Misspeculation Impact on Chip-Multiprocessors Power Overhead
| Autor: | Anupama Mondal, Mamata Dalui, Baisakhi Das, Biplab K. Sikdar, Nilanjana Das, Salma Mandi |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Power loss Hardware_MEMORYSTRUCTURES Computer science business.industry Overhead (engineering) Early detection 02 engineering and technology ComputerSystemsOrganization_PROCESSORARCHITECTURES 01 natural sciences 020202 computer hardware & architecture Power (physics) Embedded system 0103 physical sciences 0202 electrical engineering electronic engineering information engineering business Data cache Data migration Block (data storage) |
| Zdroj: | ICSCA |
| DOI: | 10.1145/3185089.3185124 |
| Popis: | The main reason for low efficiency of data cache in chip-multiprocessors (CMPs) is the presence of dead blocks that are not accessed for a long time before eviction. The design inaccuracies degrade the performance of a system and cause huge power drainage. This demands effective prediction scheme for the early detection of dead block. This work, therefore, targets to study the impact of faults/inaccuracies in prediction (misspeculation) causing additional loss in processor power. Further, the power loss for misspeculation in data migration is evaluated. The analysis of experimental results reveals that the misspeculation needs to be avoided in CMPs to ensure effectiveness of such a system. |
| Databáze: | OpenAIRE |
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