search query: @author Egorkine, Artem / total: 1
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Author: | Egorkine, Artem |
Title: | Beam Data Replication for Distributed Calculation Framework |
Publication type: | Master's thesis |
Publication year: | 2008 |
Pages: | (12) + 88 Language: eng |
Department/School: | Tietotekniikan laitos |
Main subject: | Ohjelmistotekniikka (T-106) |
Supervisor: | Tarhio, Jorma |
Instructor: | Kauppinen, Riikka ; Arminen, Johannes |
OEVS: | Electronic archive copy is available via Aalto Thesis Database.
Instructions Reading digital theses in the closed network of the Aalto University Harald Herlin Learning CentreIn the closed network of Learning Centre you can read digital and digitized theses not available in the open network. The Learning Centre contact details and opening hours: https://learningcentre.aalto.fi/en/harald-herlin-learning-centre/ You can read theses on the Learning Centre customer computers, which are available on all floors.
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Location: | P1 Ark Aalto | Archive |
Keywords: | beam data Eclipse Distributed Calculation Framework data replication Subversion radiotheraphy treatment planning |
Abstract (eng): | Radiotherapy treatment planning using the Eclipse Treatment Planning System, developed by Varian Medical Systems, employs beam data for radiation dose distribution calculation. Beam data is a set of dosimetric and configuration data used to model particle beams produced by the particle accelerators used in treatment. Dose distribution calculations may be particularly computationally intensive. In Eclipse, they may be parallelized by distributing parts of the calculation to the neighbouring workstations using the Distributed Calculation Framework. Beam data is loaded every time a workstation starts the calculations. Beam data changes infrequently, but the new data is required to be taken into use immediately when it becomes available. The objective of this thesis is to develop an infrastructure for efficient storage of the beam data and its distribution to the calculation slaves. Various models of data distribution and replication are analyzed in terms of applicability to beam data with its usage and modification scenarios. This thesis presents the design and implementation of a software system built upon Subversion version control system with additional checksum metadata stored alongside of the beam data for off-line verification and validation. The performance of the new system is compared with the beam data access methods currently employed in Eclipse. The new system is shown to be extremely efficient after the initial data replication steps. |
ED: | 2008-08-21 |
INSSI record number: 36047
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