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Code layout optimization seeks to reorganize the instructions of a program to better utilize the cache. On multicore, parallel executions improve the throughput but may significantly increase the cache contention, because the co-run programs share the cache and in the case of hyper-threading, the instruction cache. In this paper, we extend the reference affinity model for use in whole-program code...
Nowadays many software services are hosted in the Cloud. When there are more requests on these services, there are also more queries sent to the underlying database. In order to keep up with the increasing workload, it is necessary to have multiple servers hosting the data. Some cloud providers offer the full data replication solution. However, this solution only works when the load mainly consists...
Many techniques characterize the program working set by the notion of the program footprint, which is the volume of data accessed in a time window. A complete characterization requires measuring data access in all O(n^2) windows in an n-element trace. Two recent techniques have significantly reduced the measurement time, but the cost is still too high for real-size workloads. Instead of measuring...
A new method of auxiliary sources(MAS) is presented in this paper to solve the body of revolution(BOR) scattering problems, where continuous circular loop currents are used as auxiliary sources. By using Werner's formulas, the EM fields radiated by circular loop currents can be computed very efficiently, which render the high efficiency of our method. Numerical examples are presented to demonstrate...
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