WoTUG - The place for concurrent processes

Annual Conference: Communicating Process Architectures

Communicating Process Architectures 2015, the 37th. WoTUG conference on concurrent and parallel systems, takes place from Sunday August 23rd. to Wednesday August 26th. 2015 and is hosted by the School of Computing, University of Kent. Accommodation and evening Fringe sessions will be at Keynes College, a few minutes walk from the School.

About WoTUG

WoTUG provides a forum for the discussion and promotion of concurrency ideas, tools and products in computer science. It organises specialist workshops and annual conferences that address key concurrency issues at all levels of software and hardware granularity. WoTUG aims to progress the leading state of the art in:

  • theory (programming models, process algebra, semantics, ...);
  • practice (multicore processors and run-times, clusters, clouds, libraries, languages, verification, model checking, ...);
  • education (at school, undergraduate and postgraduate levels, ...);
  • applications (complex systems, modelling, supercomputing, embedded systems, robotics, games, e-commerce, ...);
and to stimulate discussion and ideas on the roles concurrency will play in the future:
  • for the next generation of scalable computer infrastructure (hard and soft) and application, where scaling means the ability to ramp up functionality (stay in control as complexity increases) as well as physical metrics (such as absolute performance and response times);
  • for system integrity (dependability, security, safety, liveness, ...);
  • for making things simple.
Of course, neither of the above sets of bullets are exclusive.

WoTUG publications

A database of papers and presentations from WoTUG conferences is here. The Abstract below has been randomly selected from this database.

PICOMS: Prioritised Inferred Choice Over Multiway Synchronisation

By Douglas N. Warren

The ability to make a choice over multiway synchronisations (COMS) has always been an integral part of CSP. However, it is something that has been conspicuous by its absence from many concurrent languages, limiting their expressive power. Implementation of a 2-phase commit protocol to resolve such choice can result in large overheads, caused by synchronisation offers having to be withdrawn. The recent Oracle (single-phase) algorithm resolves COMS efficiently, for shared memory concurrency at least. However, the Oracle only deals with arbitrary choice and does not obviously extend to prioritised choice (where we assume the priorities of the participating processes are not in conflict). PICOMS is a proposed efficient method for resolving COMS that honours non-conflicting priorities, with only a modest increase in complexity over the Oracle method.

Complete record...


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