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- W2014641514 abstract "With increasing speed and power density, high-performance memories, including FB-DIMM (Fully Buffered DIMM) and DDR2 DRAM, now begin to require dynamic thermal management(DTM) as processors and hard drives did. The DTM of memories, nevertheless, is different in that it should take the processor performance and power consumption into consideration. Existing schemes have ignored that. In this study, we investigate a new approach that controls the memory thermal issues from the source generating memory activities - the processor. It will smooth the program execution when compared with shutting down memory abruptly, and therefore improve the overall system performance and power efficiency. For multicore systems, we propose two schemes called adaptive core gating and coordinated DVFS. The first scheme activates clock gating on selected processor cores and the second one scales down the frequency and voltage levels of processor cores when the memory is to be over-heated. They can successfully control the memory activities and handle thermal emergency. More importantly, they improve performance significantly under the given thermal envelope. Our simulation results show that adaptive coregating improves performance by up to 23.3% (16.3% on average) on a four-core system with FB-DIMM when compared with DRAM thermal shutdown; and coordinated DVFS with control-theoretic methods improves the performance by up to 18.5% (8.3% on average)." @default.
- W2014641514 created "2016-06-24" @default.
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- W2014641514 date "2007-06-09" @default.
- W2014641514 modified "2023-10-01" @default.
- W2014641514 title "Thermal modeling and management of DRAM memory systems" @default.
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- W2014641514 doi "https://doi.org/10.1145/1250662.1250701" @default.
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