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Energy becomes an inevitable challenge when using a large die-stacking dynamic random access memory (DRAM) cache. Although emerging spin-transfer-torque-RAM (STT-RAM) technology can efficiently reduce the static energy of large cache, it cannot completely replace DRAM cache due to the high write energy of STT-RAM. Recently, researchers have observed that there are many redundant bits written in the...
To handle the memory wall problem and satisfy the high processing speed of the multicore processors, there is significant demand for a large cache capacity in future. The 3D die-stacking DRAM cache with high density can be used as a large cache compared with conventional SRAM cache. However, energy becomes an inevitable challenge with the increasing size of DRAM cache. STT-RAM with near-zero leakage...
Emerging die-stacked DRAM cache provides high bandwidth and low latency to break the memory wall. However, energy becomes a major challenge with the increasing size of die-stacked DRAM cache. It is observed that DRAM cache with longer bitlines consumes more energy due to larger capacitance. To reduce the high energy of long bitlines, we propose the TCache by partitioning every subarray of DRAM cache...
Energy is quickly becoming an inevitable challenge to using a large die-stacking DRAM cache. Emerging STT-RAM technology can efficiently reduce the static energy of large cache. However, STT-RAM which has high write energy and latency is not suitable to completely substitute for on-die DRAM cache. We observe that there are a large number of redundant bits written in the row buffer and futile bits...
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