RuPAC2016 - List of Keywords (distributed)

Paper	Title	Other Keywords	Page
TUPSA031	The Cascade Interference Switch Comprising a Transmission Resonator	plasma, cavity, simulation, high-voltage	282
	S.A. Gorev, S.N. Artemenko, V.S. Igumnov TPU, Tomsk, Russia
	The new concept of microwave interference switches is reported. Interference switch is based on series of H-plane T-junctions (cascade switch) in the view of decreasing switched power at Off state and comprises irises in both its own input and output arms. At On state the irises act as a transmission resonator localizing the nodes of the standing wave at the junctions. Such distribution is expected to decrease the plasma losses. It was shown with a simulation that the cascade switch with additional irises increases the efficiency of the active microwave compressors. The simulation was made with CST studio and COMSOL.
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WEPSB011	About Development System for the Analysis of Charged Particle Beam Dynamics	controls, acceleration, focusing, quadrupole	379
	M.Yu. Balabanov Saint Petersburg State University, Saint Petersburg, Russia
	Modern research process of scientific problems often requires large computational resources. To solve them we have to use distributed computing systems. Researcher groups need to use them simultanieously and mostly remotely. The paper describes build of the distributed system for collaborative research process. As example was chosen a problem of the optimization dynamics charged particle beams using high-performance computing systems. The solution of many topical tasks leads to nonlinear optimization problems for example the controlling beams of charged particles. Optimization is performed by minimizing some quality functional the choice of which is a corollary fact that the control functions which provides a functional minimum should determine the accelerating structure with the desired characteristics. The problem is usually formulated as finding the control functions for which the controlled system satisfies the given constraints. There is a necessity of the quality functional choice which ensures the problem solution. Research objectives: the development of a distributed information-computational system for the analysis of charged particle beam dynamics.
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WEPSB020	On a New Approach for Description of Self-Consistent Distributions for a Charged Particle Beam	operation, electron, linac, synchrotron	407
	O.I. Drivotin, D.A. Ovsyannikov St. Petersburg State University, St. Petersburg, Russia
	The present report is concerned with the problem of particle phase space distributions for a charged particle beam. A new approach is presented. It provides the possibility to specify various coordinates in the phase space. The main attention has been focused on the case where motion integrals are taken as phase coordinates. Using such coordinates, one can obtain a lot of self-consistent distributions. Some distributions for a breathing beam are considered as examples: generalized Brillouin flow, generalized KV distribution, and others. Besides, this approach allows simple graphical representation of various self-consistent distributions.
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WEPSB023	Formation of a Given Distribution of the Beam in the Periodic Channel	controls, feedback, space-charge, focusing	411
	S.N. Andrianov St. Petersburg State University, St. Petersburg, Russia N.S. Edamenko Saint Petersburg State University, Saint Petersburg, Russia
	The article considers the problem of forming a predetermined distribution density of the beam (in the phase or configuration space) in a periodic channel. The proposed approach is based on a method of constructing a beam mapping in the form of a truncated series consisting from matrices up to necessary order of nonlinearities. Similar approach allows us to formulate the given task as an optimization problem for some special functionals, created from parameters of the accelerator. Some results of the testing tasks are demonstrated.
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WEPSB025	Application of GPGPUs and Multicore CPUs in Optimization of Some of the MpdRoot Codes	framework, GPU, detector, experiment	416
	A.I. Fatkina, O.O. Iakushkin, N.O. Tikhonov Saint Petersburg State University, Saint Petersburg, Russia
	Funding: This research was partially supported by SPbU (Saint Petersburg State University) grants 9.37.157.2014, 0.37.155.2014 and Russian Foundation for Basic Research grant (project no. 16-07-01113). We analyzed the ways to optimize MPDRoot algorithms using existing solutions from external libraries. We also examined the libraries designed to work with graphics accelerators and multi-core CPUs, such as cuRAND, cuFFT and OpenCL FFT. The paper describes the ways to expedite a portion of Kalman filter by transferring it to GPUs or multi-core CPUs using the implementation included into the MPDRoot package.
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Paper

Title

Other Keywords

Page

TUPSA031

The Cascade Interference Switch Comprising a Transmission Resonator

plasma, cavity, simulation, high-voltage

282

S.A. Gorev, S.N. Artemenko, V.S. Igumnov
TPU, Tomsk, Russia

The new concept of microwave interference switches is reported. Interference switch is based on series of H-plane T-junctions (cascade switch) in the view of decreasing switched power at Off state and comprises irises in both its own input and output arms. At On state the irises act as a transmission resonator localizing the nodes of the standing wave at the junctions. Such distribution is expected to decrease the plasma losses. It was shown with a simulation that the cascade switch with additional irises increases the efficiency of the active microwave compressors. The simulation was made with CST studio and COMSOL.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSB011

About Development System for the Analysis of Charged Particle Beam Dynamics

controls, acceleration, focusing, quadrupole

379

M.Yu. Balabanov
Saint Petersburg State University, Saint Petersburg, Russia

Modern research process of scientific problems often requires large computational resources. To solve them we have to use distributed computing systems. Researcher groups need to use them simultanieously and mostly remotely. The paper describes build of the distributed system for collaborative research process. As example was chosen a problem of the optimization dynamics charged particle beams using high-performance computing systems. The solution of many topical tasks leads to nonlinear optimization problems for example the controlling beams of charged particles. Optimization is performed by minimizing some quality functional the choice of which is a corollary fact that the control functions which provides a functional minimum should determine the accelerating structure with the desired characteristics. The problem is usually formulated as finding the control functions for which the controlled system satisfies the given constraints. There is a necessity of the quality functional choice which ensures the problem solution. Research objectives: the development of a distributed information-computational system for the analysis of charged particle beam dynamics.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSB020

On a New Approach for Description of Self-Consistent Distributions for a Charged Particle Beam

operation, electron, linac, synchrotron

407

O.I. Drivotin, D.A. Ovsyannikov
St. Petersburg State University, St. Petersburg, Russia

The present report is concerned with the problem of particle phase space distributions for a charged particle beam. A new approach is presented. It provides the possibility to specify various coordinates in the phase space. The main attention has been focused on the case where motion integrals are taken as phase coordinates. Using such coordinates, one can obtain a lot of self-consistent distributions. Some distributions for a breathing beam are considered as examples: generalized Brillouin flow, generalized KV distribution, and others. Besides, this approach allows simple graphical representation of various self-consistent distributions.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSB023

Formation of a Given Distribution of the Beam in the Periodic Channel

controls, feedback, space-charge, focusing

411

S.N. Andrianov
St. Petersburg State University, St. Petersburg, Russia
N.S. Edamenko
Saint Petersburg State University, Saint Petersburg, Russia

The article considers the problem of forming a predetermined distribution density of the beam (in the phase or configuration space) in a periodic channel. The proposed approach is based on a method of constructing a beam mapping in the form of a truncated series consisting from matrices up to necessary order of nonlinearities. Similar approach allows us to formulate the given task as an optimization problem for some special functionals, created from parameters of the accelerator. Some results of the testing tasks are demonstrated.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)

WEPSB025

Application of GPGPUs and Multicore CPUs in Optimization of Some of the MpdRoot Codes

framework, GPU, detector, experiment

416

A.I. Fatkina, O.O. Iakushkin, N.O. Tikhonov
Saint Petersburg State University, Saint Petersburg, Russia

Funding: This research was partially supported by SPbU (Saint Petersburg State University) grants 9.37.157.2014, 0.37.155.2014 and Russian Foundation for Basic Research grant (project no. 16-07-01113).
We analyzed the ways to optimize MPDRoot algorithms using existing solutions from external libraries. We also examined the libraries designed to work with graphics accelerators and multi-core CPUs, such as cuRAND, cuFFT and OpenCL FFT. The paper describes the ways to expedite a portion of Kalman filter by transferring it to GPUs or multi-core CPUs using the implementation included into the MPDRoot package.

Export •

reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)