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Author (up) Becker, F.; Kosowski, A.; Matamala, M.; Nisse, N.; Rapaport, I.; Suchan, K.; Todinca, I. pdf  doi
  Title Allowing each node to communicate only once in a distributed system: shared whiteboard models Type
  Year 2015 Publication Distributed Computing Abbreviated Journal Distrib. Comput.  
  Volume 28 Issue 3 Pages 189-200  
  Keywords Distributed computing; Local computation; Graph properties; Bounded communication  
  Abstract In this paper we study distributed algorithms on massive graphs where links represent a particular relationship between nodes (for instance, nodes may represent phone numbers and links may indicate telephone calls). Since such graphs are massive they need to be processed in a distributed way. When computing graph-theoretic properties, nodes become natural units for distributed computation. Links do not necessarily represent communication channels between the computing units and therefore do not restrict the communication flow. Our goal is to model and analyze the computational power of such distributed systems where one computing unit is assigned to each node. Communication takes place on a whiteboard where each node is allowed to write at most one message. Every node can read the contents of the whiteboard and, when activated, can write one small message based on its local knowledge. When the protocol terminates its output is computed from the final contents of the whiteboard. We describe four synchronization models for accessing the whiteboard. We show that message size and synchronization power constitute two orthogonal hierarchies for these systems. We exhibit problems that separate these models, i.e., that can be solved in one model but not in a weaker one, even with increased message size. These problems are related to maximal independent set and connectivity. We also exhibit problems that require a given message size independently of the synchronization model.  
  Address [Becker, Florent; Todinca, Ioan] Univ Orleans, LIFO, Orleans, France, Email:;  
  Corporate Author Thesis  
  Publisher Springer Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 0178-2770 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000354708400003 Approved  
  Call Number UAI @ eduardo.moreno @ Serial 492  
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