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,
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.
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:
and to stimulate discussion and ideas on the roles concurrency will play in the future:
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, ...);
Of course, neither of the above sets of bullets are exclusive.
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.
A database of papers and presentations from WoTUG conferences is here.
The Abstract below has been randomly selected from this database.
TCP Input Threading in High Performance Distributed Systems
TCP is the only widely supported protocol for reliable communication. Therefore, TCP is the obvious choice when developing distributed systems that need to work on a wide range of platforms. Also, for this to work a developer has to use the standard TCP interface provided by a given operating system.
This work explores various ways to use TCP in high performance distributed systems. More precisely, different ways to use the standard Unix TCP API efficiently are explored, but the findings apply to other operating systems as well. The main focus is how various threading models affect TCP input in a process that has to handle both computation and I/O.
The threading models have been evaluated in a cluster of Linux workstations and the results show that a model with one dedicated I/O thread generally is good. It is at most 10% slower than the best model in all tests, while the other models are between 30 to 194% slower in specific tests.