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A novel non-volatile 1-bit binary comparator based on pure memristors and an 8-bit comparator based on 1T1M (1 transistor per memristor) crossbar array are proposed in this paper. The proposed comparator is sneak-path free and has short delays. It can be extended to an arbitrary N-bit comparator with 7N memristors and 7N transistors. The worst case input-to-output delay is 4.8ns. A 64-bit comparator...
Currently, researchers use simulators to experimenttheir innovation on emerging non-volatile memory. Unfortunately, simulation method is both time-consuming andare hard to debug. In this paper, we present a non-volatile memory emulatorwhich enables system-level research on emerging memory. Ouremulator uses performance monitoring units on off-the-shelfprocessors to implement an accurete performance...
Non-volatile memory (NVM) provides persistence with dynamic random access memory (DRAM)-like performance. This paper presents SwapX, an NVM-based hierarchical swapping framework for guest operating systems (OSs) in virtual machines (VMs). SwapX works in a cluster connected to a NVM pool, where each server is equipped with both NVM and DRAM to provide hierarchical swapping service for VMs. SwapX: 1)...
Emerging non-volatile memory (NVM) requires refactoring of the hardware and software stacks used on current computer systems. Modern researchers typically rely on simulators to test their innovations. Unfortunately, running a simulation requires orders of magnitude more time than performing a native run, and most simulation platforms are difficult to modify or debug. In this paper, we propose using...
This paper presents a memory crossbar based on two serial memristors with threshold characteristic to eliminate the effect of sneak paths, which is a key issue in crossbar memory system leading to great degradation in their performance and power efficiency. At first, we analyze the threshold characteristic of memristor and propose a memristor model with threshold. Based on this model, the paper presents...
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