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The advance of CMOS process is still going, but the end is coming into sight. Semiconductor chips with advanced process later than 21nm are so expensive that they are developed only for million selling products. On the other hand, the advanced AI, IoT and big data technologies require more and more computation/communication power with a tightly limited power budget. How we can develop a “Cool chips”...
Sparse Matrix-Vector multiplication (SpMV) is a computational kernel widely used in many applications. There are many different implementations using different processors and algorithms for SpMV. The performances of different SpMV implementations are quite different, and it is basically difficult to choose the implementation that has the best performance for a given sparse matrix and a given platform...
DRAM-based main memories are energy-hungry components of modern computer systems. Since accesses to DRAM need a complex protocol, the performance of an address-mapping scheme that decides physical locations of data based on physical addresses has a big impact on energy consumption. To improve the energy efficiency, this paper proposes a mechanism that dynamically selects an appropriate address-mapping...
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