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As technology scales, modern massive parallel processing (MPP) systems are facing large system overhead caused by high failure rates. To provide the system-level fault tolerance, the traditional in-disk checkpointing/restart schemes are usually adopted by periodically dumping system states and memory contents to hard disk drives (HDDs). When errors occur, the system can be restored by reading checkpoints...
Three-dimensional (3D) on-chip memory stacking has been proposed as a promising solution to the “memory wall” challenge with the benefits of low access latency, high data bandwidth, and low power consumption. The stacked memory tiers leverage through-silicon-vias (TSVs) to communicate with logic tiers, and thus dramatically reduce the access latency and improve the data bandwidth without the constraint...
In Application-Layer Multicast (ALM) tree, when a parent node leaves, all its descendent nodes must adjust their positions resulting in the interruption of multicast connections. This is called stability problem of ALM trees which may degrade the continuity of multicast data transmission. In this paper, we analyze the stability problem of ALM trees and propose the Instantaneous Stability Degree Model...
Dynamic bandwidth assignment (DBA) in Ethernet Passive Optical Networks (EPONs) is based on a frame structure that is broadcast downstream periodically. In most DBA schemes supporting priorities, frames are divided to allocate bandwidth for different traffic classes according to weights, which, however, are often either determined empirically or supposed to be pre-known. How to determine these weights...
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