Thermal-constrained memory management for three-dimensional DRAM-PCM memory with deep neural network applications
Microprocessors and Microsystems(2022)
摘要
For the deep neural network applications, the requirement of the memory bandwidth and volume is huge. Multiple DRAM and PCM (phase-change memory) chips are stacked to form the 3D DRAM-PCM memory, which can support different features from DRAM and PCM chips. But the thermal problem in 3D DRAM-PCM memory is more serious than the traditional memories. To constrain the peak temperature, the memory management for the 3D hybrid DRAM-PCM memory is required. In this work, we proposed the thermal-constrained memory management (TCMM) to solve this problem. TCMM applies different methods to reduce the power and constrain the peak temperature: dynamic thermal management with data preloading (DP), data management (DM), and address remapping (AR). Compared to the related works, the 3D DRAM-PCM memory using TCMM can reduce the peak temperature up to 26.25 °C and the latency up to 78.23% in our experiments. The peak temperature can be also constrained under the predefined thermal limitation.
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关键词
DRAM,PCM,3D hybrid memory,Data preload,Address remapping,Hotspot
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