This work describes the idea of the system of informational support for the scientific projects and the development of computational task tracking complex. Due to large requirements for computational experiments the problem of presentation of the information about HPC tasks becomes one of the most important. Nonstandard usage of the service desk system as a basis of the computational task tracking and support system can be the solution of this problem. Particular attention is paid to the analysis and the satisfaction of the conflicting requirements to the task tracking complex from the different user groups. Besides the web service kit used for the integration of the task tracking complex and the datacenter environment is considered. This service kit became the main interconnect between the parts of the scientific project support system and also this kit allows to reconfigure the whole system quickly and safely. Комплекс слежения за вычислительными задачами в системе информационной поддержки научных проектов Н. В. Южанин, Ю. А. Типикин, И. Г. Ганкевич, В. И. Золотарев -Петербургский государственный университет, Россия, 198504, г. Санкт-Петербург, Петергоф, Университетский просп., д. 35 В данной работе рассматривается идея системы информационной поддержки научных проектов и построение комплекса слежения за вычислительными задачами. Ввиду больших потребностей в вычислительных экспериментах предоставление информации о вычислительных задачах на HPC-ресурсах становится одной из важнейших проблем. В качестве решения этой проблемы предлагается нестандартное использование системы service desk -построение на ее базе комплекса слежения за выполнением вычислительных задач на распределенной системе и ее сопровождения. Особое внимание в статье уделено анализу и удовлетворению противоречивых требований к комплексу со стороны разных групп пользователей. Помимо этого, рассмотрена система веб-служб, служащая для интеграции комплекса слежения с окружением датацентра. Данный набор веб-служб является основным связующим компонентом системы поддержки научных проектов и позволяет гибко изменять конфигурацию системы в целом в любое время с минимальными потерями.
СанктКлючевые слова: служба поддержки, отслеживание статуса выполнения задач, HPC, веб-сервисResearch was carried out using computational resources provided
In the work on the example of a tunnel erector, the concept of recurrent metamodeling is determined which allows engineering new designs of mining machines. In this case, the metamodel of their entire family is associated with the family of models of machine nodes. The effect of various laws of movement of the erector devices is analyzed and it is proved that its minimum time is observed under conditions of compliance with the U-shaped law. A mathematical model of the hydraulic drive of the erector devices has been developed, which allows, taking into account any options for moving the point mass, to determine the law of control of the movement of the spool of the hydraulic directional control valve (DCV) in relation to the laminar and turbulent type of liquid flow. The erector device metamodel was created using the algorithmic language MATLAB Simulink.
The Earth's underlying surface has a significant impact on the characteristics of antennas and the energy parameters of the radio path. Although the theoretical aspects of the influence of the finite conductivity of the underlying surface on antennas have been sufficiently studied, there is a need for the development of a specific methodology that would allow to automize energy parameters calculations of radio paths using the wavehop method. This article presents a methodology for accounting for the electrical characteristics of the subsoil surface, which differs in its ability to use digital maps and automate calculations. It also includes separate calculation results for correcting antenna coefficients that confirm the theoretical calculations. The developed methodology can be used for calculations of energy parameters of radio paths using the wavehop method.
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