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This paper proposes the algorithms for optimization of Remote Core Locking (RCL) synchronization method in multithreaded programs. The algorithm of initialization of RCL-locks and the algorithms for threads affinity optimization are developed. The algorithms consider the structures of hierarchical computer systems and non-uniform memory access (NUMA) to minimize execution time of RCL-programs. The...
This paper represents the heuristic algorithms for optimizing communications in parallel PGAS-programs and minimizes of its execution time. This is achieved by taking into account of hierarchical structure of computer systems while reduction. Developed algorithms are implemented for PGAS-language Cray Chapel.
The article describes the development of a web page classification model using data mining techniques. The model allows to perform a multi-label soft classification of web pages. In order to develop this classification model we combined new, with already existing methods. The experiments show an increased classification precision.
In this study, a new multicomponent model (MCM) to determine the time variation of ionospheric parameters is suggested. The model was based on the combination of wavelets with autoregressive-integrated moving average model classes and allowed the study of the seasonal and diurnal variations of ionospheric parameters and the determination of anomalies occurring during ionospheric disturbances. To investigate...
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