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Projects / Programmes source: ARIS

Parallel and Distributed Systems

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Periods
January 1, 1999 - December 31, 2003
Research activity

Code Science Field Subfield
2.07.00  Engineering sciences and technologies  Computer science and informatics   

Code Science Field
P170  Natural sciences and mathematics  Computer science, numerical analysis, systems, control 
P175  Natural sciences and mathematics  Informatics, systems theory 
B110  Biomedical sciences  Bioinformatics, medical informatics, biomathematics biometrics 
T180  Technological sciences  Telecommunication engineering 
T111  Technological sciences  Imaging, image processing 
Evaluation (rules)
source: COBISS
Evaluation of bibliographic research performance indicators according to ARIS methodology
Citations Citations for bibliographic records in COBIB.SI that are linked to records in citation databases
source: WoS source: Scopus source: COBISS
Researchers (6)
no. Code Name and surname Research area Role Period No. of publications
1.  03302  PhD Viktor Avbelj  Systems and cybernetics  Researcher  2001 - 2003  203 
2.  11915  PhD Igor Benko  Computer science and informatics  Researcher  2001 - 2003  22 
3.  06897  Tomaž Krištofelc    Researcher  2001 - 2003  6 
4.  21555  PhD Marjan Šterk  Computer science and informatics  Researcher  2001 - 2003  69 
5.  11077  PhD Denis Trček  Computer science and informatics  Researcher  2001 - 2003  323 
6.  06875  PhD Roman Trobec  Computer science and informatics  Head  2001 - 2003  469 
Organisations (1)
no. Code Research organisation City Registration number No. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  90,742 
Abstract
The research program ""Parallel and Distributed Systems"" is focused on parallel algorithms, communication issues in parallel computers with data security and integrity, and parallel simulations. Parallel computers, executing concurrently several operations on a set of data, have been broadening research and applications in computer science. In an effective parallel computer, parallel algorithms and communication between units are equally important for adequate performance. Within the research program we are developing new parallel algorithms for simulations in chemistry and medicine. The communication and calculation complexity of the parallel algorithms are analyzed. Some general principles for the simplification of writing and debugging of parallel programs are devised. Fault- tolerance and system diagnostic methods are studied either in parallel or distributed systems. New communication principles among parallel processors are developed and tested. In any network of processors, routing has a key impact on the effectiveness of a parallel computer. Only if the message transfer is optimal, does a parallel algorithm have the chance to be optimal. The scalable interconnection networks for parallel systems are studied. Any kind of collective communication and routing schemes in d-mesh and torus topologies are investigated to find the optimal solutions. The security services in information-communications systems, and the problem of incorporating incomplete security policy specifications at early stages of system analysis and design are studied in distributed systems. Computer simulations are often the only possible way of investigating natural phenomena. The theoretical results from the mentioned research areas are transferred into the practical environment, particularly in chemistry, medicine and communication system industry. We already implemented for example the parallel programs of force integration in molecular dynamics, and the calculation of temperature distribution on the human heart during surgery. The results of such simulations have to be tested in practice and we have developed a device for measuring bioelectrical signals i.e.: body surface potentials resulting from human heart activity.
Most important scientific results Final report
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