swMATH ID: 22460
Software Authors: Marchenko, Mikhail Aleksandrovich; Ivanov, Aleksandr Aleksandrovich; Smirnov, Dmitry Dmitriyevich
Description: AMIKS is a program for the numerical analysis of stochastic oscillators on massively parallel computing systems. The certificate of state registration of the computer program №2016616439, the date of state registration in the Register of Computer Programs on 10.06.2016]. (In Russ.): Complex of programs AMIKS for the numerical solution of stochastic differential equations using the Monte Carlo method on supercomputers. The paper describes complex of programs named AMIKS for the numerical solution of stochastic differential equations (SDE) systems on supercomputers. In addition to the ability to create new software modules for the numerical solution of the SDE, AMIKS already has ready-made software modules that, when loaded, allow you to recalculate a specific task with new parameters. The block of calculated program modules consists of some SDE systems that arise in the following fields of science: linear and nonlinear oscillatory circuits, SDE with a randomly structure, strange attractors, movement of spacecraft and gyroscopes, self-oscillating regimes in chemical reactions, motion of a charged particle in an electromagnetic field, SDE of fluid and gas motion, SDE with Poisson component. AMIKS is capable to numerically solve SDE in partial derivatives, which reduces to a numerical solution of SDE systems after discretization with respect to spatial variables. With this, SDE system consisting of tens of thousands of equations and more will arise, which requires a long counting time on hundreds of supercomputer cores. As an example, we use Korteweg-de Vries equation, which has a solution in the form of solitary wave for some parameters. In the AMIKS user interface, there is an opportunity of test calculations on a personal computer in order to select the necessary parameters for task setting on a supercomputer. For the Korteweg-de Vries equation, the results of numerical experiments obtained on the NKS-30T cluster of the Siberian Supercomputer Center at the IVMMG SB RAS are presented. par To analyze the numerical solution, AMIKS provides a convenient interface for plotting graphs such as frequency characteristics, generalizing the integral curve, phase portrait as well as the spectral portrait of the solution. In particular, the last functional was developed specifically for numerical analysis of SDE in partial derivatives. Later, the authors plan to continue developing tools for the analysis of SDE in partial derivatives.
Homepage: http://www.ict.nsc.ru/jct/annotation/1806?l=eng
Keywords: stochastic differential equations; integral frequency curve; frequency phase portrait; generalized Euler method; Monte Carlo method; frequency portrait decisions; soliton; Korteweg-de Vries equation; solitary wave; numerical experiment
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Cited in: 2 Publications

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