WoTUG - The place for concurrent processes

Annual Conference: Communicating Process Architectures

Communicating Process Architectures 2018, the 40th. WoTUG conference on concurrent and parallel systems, takes place from Sunday August 19th. to Wednesday August 22nd. 2018 and is hosted by Professor Dr. Rainer Spallek, Chair of VLSI Design, Diagnostics and Architecture at the Faculty of Computer Science, Technische Universität Dresden, Germany. The conference is organised by Dr. Spallek in collboration with Oliver Knodel and Uwe Mielke and in partnership with WoTUG.

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.

A Personal Perspective on the State of HPC in 2013

By Christopher C.R. Jones

This paper is fundamentally a personal perspective on the sad state of High Performance Computing (HPC, or what was known once as Supercomputing). It arises from the author's current experience in trying to find computing technology that will allow codes to run faster: codes that have been painstakingly adapted to efficient performance on parallel computing technologies since around 1990, and have allowed effective 10-fold increases in computing performance at 5 year HPC up-grade intervals, but for which the latest high-count multi-core processor options fail to deliver improvement. The presently available processors may as well not have the majority of their cores as to use them actually slows the code - hard-won budget must be squandered on cores that will not contribute. The present situation is not satisfactory: there are very many reasons why we need computational response, not merely throughput. There are a host of cases where we need a large, complex simulation to run in a very short time. A simplistic calculation based on the nominal performance of some of the big machines with vast numbers of cores would lead one to believe that such rapid computation would be possible. The nature of the machines and the programming paradigms, however, remove this possibility. Some of the ways in which the computer science community could mitigate the hardware shortfalls are discussed, with a few more off the wall ideas about where greater compute performance might be found.

Complete record...


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