Pavel S. Kostenetskiy

• PhD
• Head of Unit at National Research University Higher School of Economics

Supercomputer technologies are in demand for solving many important and computationally-intensive tasks in various fields of science and technology. Therefore, it is not surprising that there are several dozen supercomputer centers only in Russia. However, the goals of creating such centers, as well as the range of tasks solved in them, can vary gr...

This paper is devoted to the monitoring system HPC TaskMaster developed at the HSE University for the cHARISMa cluster. This system automatically evaluates the efficiency of performing tasks of HPC cluster users and identifies inefficient tasks, thereby significantly saving the expensive machine time. In addition, users can view reports on completi...

The National Research University Higher School of Economics launched its HPC cluster and created a new division named the Supercomputer Simulation Unit. Now the university HPC cluster occupies seventh place in rating the most powerful computers of the CIS TOP50. The HPC cluster uses to solve machine learning problems, population genomics, hydrodyna...

Detection and classification of surface defects of the rolled metal are one of the main tasks for correctly assessing product quality. Historically, these tasks were performed by a human. However, due to a multitude of production factors, such as high rolling rate and temperature of the metal, the results of such human work are rather low. Replacin...

This paper is written as a part of «Automatic visible defect de-tection and classification system (AVDDCS) development for Electrolytic Tinning Unit» project for an Iron and Steel Works. As a part of pre-design research, a system prototype was devel-oped. It consists of Preprocessor, Classifier, Server, Database and User interface. The difference b...

The development of parallel database management systems is an urgent problem due to the rapid information volume growth. Nowadays the basic principles of DBMS performance improvement include the use of multiprocessor systems [8]. At the same time, acceleration could be achieved by using new hardware architectures, such as hybrid clusters with manyc...

There are three supercomputers in the Supercomputer Simulation Laboratory of South Ural State University. Laboratory provides fundamental and applied research and developments of innovative character in the fields of physics, chemistry, mathematics, fundamental informatics and many others. In addition, many Russian industrial companies perform engi...

The need to transfer data through PCI Express bus is considered as one of main bottlenecks in programming for manycore coprocessors and GPUs. This paper focuses on using data compression methods, such as RLE, Null Suppression, LZSS and combination of RLE and Null Suppression to increase efficiency of data transfer between main memory and coprocesso...

The modern manycore coprocessors and GPUs demonstrate very high performance on certain problems. Recent research has shown that these coprocessors can be used to accelerate database operations. But, to the best of our knowledge, there is only a little prior work on using coprocessors in multiprocessor database systems. This paper focuses on evaluat...

The paper is dedicated to issues concerning simulation and analysis of hierarchical multiprocessor systems oriented to database applications. Requirements for a parallel database system model are given. A survey and comparative analysis of known parallel database system models are presented. A new multiprocessor database system model is introduced....

For the multiprocessor systems of the hierarchical-architecture relational databases, a new approach to data layout and load balancing was proposed. Described was a database multiprocessor model enabling simulation and examination of arbitrary multiprocessor hierarchical configurations in the context of the on-line transaction processing applicatio...

In this paper we propose a new approach to data dis- tribution and load balancing in multiprocessor database systems with hierarchical architecture. A model of hier- archical database multiprocessor architecture is de- scribed. This model is called DMM. It allows us to simu- late and analyze various multiprocessors configurations. An important subc...

In this paper we propose a new approach to simulating parallel hardware architectures based on the hierarchical database system model, and an architecture simulator is implemented based on this new approach. This simulator allows for the investigation of different hierarchical architectures under an OLTP workload. It also gives us the opportunity t...