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Soft errors are increasing in modern computers. These faults can corrupt the results of scientific simulations. This work studies error propagation by a bit flip in conjugate gradient (CG) methods. We will also introduce adaptivity to selective reliable fault-tolerant (SRFT) solvers. Our study reduces the compute-intensive reliability steps in SRFT solvers.
As a fundamental task in computer architecture research, performance comparison has been continuously hampered by the variability of computer performance. In traditional performance comparisons, the impact of performance variability is usually ignored (i.e., the means of performance observations are compared regardless of the variability), or in the few cases directly addressed with $t$<alternatives> <inline-graphic xlink:type="simple" xlink:href="chen-ieq1-2315614.gif"/></alternatives>...
As a fundamental task in computer architecture research, performance comparison has been continuously hampered by the variability of computer performance. In traditional performance comparisons, the impact of performance variability is usually ignored (i.e., the means of performance measurements are compared regardless of the variability), or in the few cases where it is factored in using parametric...
There are demands for uninterrupted delivery of increasingly higher quality videos over the Internet from users, while video transcoding stage is a long time and resources consume processing. Cloud computing offers the power to supply on-demand resources dynamically. In this paper, we proposed a video encoding infrastructure and a rate control scheme to improve the coding efficiency on cloud environments...
The emerging wireless mesh networks (WMN) is a broadband access technology. However, the introduction of multi-hop and self-organization properties of WMN disables the adoption of IEEE 802.11i security scheme which is widely used in WLAN networks. This paper mainly focuses on the studies of secure authentication protocols of mesh security association (MSA) architecture proposed by IEEE 802.11s task...
In this paper, a novel teaching system for programming, data structure as well as algorithm design is proposed in which a self-studying platform with real-time online judging system is presented. Through the platform, the traditional teaching mode is improved so that the students will have more opportunities to practice their programming skill making them knowing as well as mastering the programming...
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