The paper addresses the problem of supporting research of the energy systems resilience. The resilience is concerned with the energy system ability to withstand large disturbances. To reach the goal of creating user-f...
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A spreadsheet is one of the most commonly used forms of representation for datasets of similar type. Spreadsheets provide considerable flexibility for data structure organisation. As a result of this flexibility, tabl...
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This article is aimed at solving an urgent problem for modern transport science – development of tools to support the modeling of railway transport objects. Since railway transport belongs to the category of so-call...
This article is aimed at solving an urgent problem for modern transport science – development of tools to support the modeling of railway transport objects. Since railway transport belongs to the category of so-called “complex systems”, the analytical approach is of little use for carrying out system analysis using methods of mathematical modeling, and it is necessary to use the simulation modeling methods. During the analysis of the subject area and the known approaches used for simulation modeling of complex technical systems, it was found that, firstly, the most convenient in this case is the method of agent-based modeling; secondly, AnyLogic that has a well-developed railway library is the most suitable as a modeling environment. The railway marshalling yard is considered as an object of modeling. The main technological processes are built in the form of blocks of the AnyLogic railway library. The simulation process of the model is visualized and presented in 3D. The offered method is suitable for describing a wide range of systems for freight and passenger transport that is expected to be implemented in the future.
We consider a semilinear differential-algebraic system of partial differential equations of index (k, 0). We numerically solve this system by applying the spline-collocation method based on splitting the matrix pencil...
We consider a class of multiple sums involving odd powers of natural numbers. Such sums appear while considering the continuous limit of the integrable hierarchy of evolution equations associated with the Itoh–Narita...
We develop an algorithmic support for some classes of nonlinear optimal control problems. We propose several algorithms based on the first- and second order necessary conditions for solving optimal control problems wi...
We consider a nonstationary system of differential-algebraic equations, i.e., the first order ordinary differential equations with variable coefficients and identically singular matrix at the derivative of the unknown...
We consider a linear nonstationary system of ordinary differential equations with interval coefficients which is not solvable with respect to the derivative of the unknown vector-valued function for any matrix coeffic...
The modern astrophysics is moving towards the enlarging of experiments and combining the channels for detecting the highest energy processes in the Universe. To obtain reliable data, the experiments should operate wit...
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Currently, a resource allocation issue in a high-performance computing environment is still a challenge. Its solution enables us to improve large spectrum criteria. Among them are the time, cost, reliability and other...
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ISBN:
(数字)9781728170411
ISBN:
(纸本)9781728170428
Currently, a resource allocation issue in a high-performance computing environment is still a challenge. Its solution enables us to improve large spectrum criteria. Among them are the time, cost, reliability and other parameters of problem-solving by end-users. High computational complexity related to optimal solving this issue through the hard search among all scenarios of the resource allocation. At the same time, we can apply knowledge-based heuristic approaches to obtain satisfactory sub-optimal solutions. Applying a multi-agent technology is one such approach. In the paper, we propose a multi-agent model of resource allocation in a high-performance computing environment in the job flow processing. We suppose that such job flows are generated by distributed applied software package. A high-performance computing environment is based on the resources of a public access supercomputer center. In such conditions, we compare traditional meta-schedulers (GridWay and Condor DAGMan) and our multi-agent system in terms of the effectiveness of job flow management. We provide the experimental results that obviously show advantages of the proposed multi-agent management in speedup and efficiency of computations, processor load, and its balancing.
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