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August 2010 decades [18]. The unbalanced performance improvement leads to one of the significant performance bottlenecks in high-performance computing known as memory-wall problem [24,39]. The reason behind this huge processor-memory per-formance disparity is several folds. First, most advanced architectural and organizational efforts are focused on processor technology, instead of memory storage devices. Second, drastically improving semiconductor technology results in much smaller and more transistors to be built on chip for processing units and thus can achieve a high computational capability