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Flash memory has accelerated the architectural evolution of storage systems with its unique characteristics compared to magnetic disks. The no-overwrite property of flash memory naturally supports transactions, a commonly used mechanism in systems to provide consistency. However, existing embedded transaction designs in flash-based Solid State Drives (SSDs) either limit the transaction concurrency...
While Phase Change Memory (PCM) has emerged as one of most promising complements or even replacements of DRAM-based memory, it has only limited write endurance. Because of uneven write distribution, PCM is highly likely to have early failures, which can spread over the chip space and leave the entire chip unusable. Wear leveling is an indispensable technique to even out wear caused by the writes....
Numerical reservoir simulation is one of the effective tools for complex fluid analysis in the oil industry. This paper analyzed the principle of thermal recovery simulation, and designed and implemented a parallel program of the thermal recovery simulation based on PESTc toolkit. The improved domain decomposition with load-balance control was presented to partition the computation into different...
Computerized data becomes more and more critical in todaypsilas digital life. With the help of redundant hardware and software, remote mirror can keep information systems alive by seamless service switching, even encountering site corruptions. Unfortunately, existing mirror systems have some limitations such as restrictions to specific storage devices and/or low level drivers. In this paper, we design...
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