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Selected Publications on Distributed Systems

about distributed systems
[1]

On Set Consensus Numbers
Zitatschlüssel GK-OSCN-09
Autor Gafni, Eli and Kuznetsov, Petr
Buchtitel Distributed Computing (Proceedings of the 23rd International Symposium on Distributed Computing (DISC 2009))
Seiten 35–47
Jahr 2009
ISBN 978-3-642-04354-3
ISSN 0302-9743
DOI http://dx.doi.org/10.1007/978-3-642-04355-0_8
Ort Elche/Elx, Spain
Adresse Berlin / Heidelberg
Monat September
Notiz nominated for Best Paper Award
Verlag Springer
Zusammenfassung We propose a complete characterization of a large class of distributed tasks, with respect to a weakened solvability notion called it weak termination. A task is weak-termination solvable if there is an algorithm by which at least one process outputs. The proposed categorization of tasks is based on the weakest failure detectors needed to solve them. We show that every task T in the considered class is equivalent (in the failure detector sense) to some form of set agreement, and thus its solvability with weak termination is completely characterized by its set consensus number: the maximal integer K such that T can be (weak-termination) solved using read-write registers and k-set agreement objects. The characterization goes through showing that ¬Ω_k, recently shown to be the weakest failure detector for the task of k-set agreement, is necessary to solve any task that is k-resilient impossible.
Link zur Publikation [2] Download Bibtex Eintrag [3]
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