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Topic: Communicating sequential processes


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In the News (Mon 28 Dec 09)

  
  Operating Systems
The idea of communicating sequential processes was first clearly stated by Hoare in his 1978 paper "Communicating Sequential Processes" in Communications of the ACM volume 21, number 8.
There are three process here; the consumer, the producer, and the buffer X. When the producer wants to produce it sends the output command p to the buffer X. If the buffer is busy at this point, or full, the producer will have to wait.
Hoare C.A.R., "Communicating Sequential Processes," Communications of the ACM, vol.
ei.cs.vt.edu /~cs5204/sp99/csp.html   (808 words)

  
 WoTUG - CSP
Communicating Sequential Processes, or CSP, is a formal language used to describe parallel systems created by C. ("Tony") Hoare in the early 1980's and described in his book "Communicating Sequential Processes", published by Prentice-Hall, 1985
CSP describes processes in terms of entities (processes) which interact using events (which can be thought of as messages).
It is an important part of CSP that if you hide the interactions between a group of processes, but not the interactions between that group and the "rest of the world" (the environment), that you end up with another process.
www.wotug.org /csp.shtml   (351 words)

  
 CSP for Java programmers, Part 2
In this second installment of his three-part introduction to Communicating Sequential Processes (CSP) for Java programmers, Abhijit Belapurkar shows you how to use the Java-based JCSP library to write multithreaded Java applications that are guaranteed to be free of concurrency issues such as race hazards, deadlocks, livelocks, and resource starvation.
A CSP process is different from a typical Java object in that both the data encapsulated in a process component and the algorithms for manipulating that data are private.
Processes in CSP form the basic building blocks for complex systems -- one process can be wired up with one or more other processes (all set to execute in parallel) to form a network of processes.
www.ibm.com /developerworks/java/library/j-csp2   (5323 words)

  
 Communicating sequential processes - Wikipedia, the free encyclopedia
In computer science, Communicating Sequential Processes (CSP) is a formal language for describing patterns of interaction in concurrent systems.
CSP was influential in the development of the occam programming language.
process, which represents divergence, as well as various operators such as alphabetized parallel, piping, and indexed choices.
en.wikipedia.org /wiki/Communicating_sequential_processes   (1566 words)

  
 Communicating sequential processes
As its name suggests, CSP allows us to describe systems as a number of components (processes) which operate independently and communicate with each other solely over well-defined channels.
CSP introduces a process algebra which is used to describe a process' communications with its environment.
To give the archetypal CSP example; an abstract representation of a chocolate machine might be able to carry out two different events, 'coin' and 'choc' which represent the insertion of payment and the delivery of a chocolate respectively.
www.askfactmaster.com /Communicating_Sequential_Processes   (552 words)

  
 Communicating Sequential Processes (CSP)
CSP was first described in a 1978 paper by C.A.R. Hoare.
As its name suggests, CSP allows us to describe systems as a number of components (processes) which operate independently and communicate with each other over well-defined channels.
The basic communication model of CSP, where information is passed only over named channels, is one of the core ideas underlying the occam programming language.
myweb.lsbu.ac.uk /~abdallae/units/sse/csp.html   (144 words)

  
 Communicating Sequential Processes   (Site not responding. Last check: 2007-10-18)
Communicating Sequential Processes (CSP) ist eine von Tony Hoare an der Universität Oxford entwickelte Sprache zur Beschreibung von Interaktion zwischen kommunizierenden Prozessen.
Die Programmiersprache Occam ist eine praktische Implementierung der CSP.
CSP verwendet Großbuchstaben für Zustände des Automaten sowie Kleinbuchstaben für Ereignisse.
www.biologie.de /biowiki/Communicating_Sequential_Processes   (363 words)

  
 The CSP archive
Jim Davies supports typesetting of CSP and the Z notation using Computer Modern fonts.
Jim Davies that supports CSP and Z, and uses the new font selection mechanism.
CSP - Communicating Sequential Processes, a brief introduction by Dan Richardson.
archive.comlab.ox.ac.uk /csp.html   (190 words)

  
 Communicating sequential processes - Definition, explanation
Hoare in 1978, the basic ideas in that paper were refined into the book “Communicating Sequential Processes” which was published in 1985.
In May 2005, that book was still the third-most cited computer science reference of all time according to Citeseer (albeit a very unreliable source due to the nature of it sampling).
These two processes can be put in parallel, the resulting processes depending on the events they must synchronise on.
www.calsky.com /lexikon/en/txt/c/co/communicating_sequential_processes.php   (619 words)

  
 FreeTechBooks.com - Communicating Sequential Processes
This book is an introduction to CSP (Communicating Sequential Processes), a formal language used to describe parallel systems.
The language and this book was authored by the same person, C. Hoare, a well known figure who discovered the QuickSort algorithm in 1959 and led a team in the design and delivery of the first commercial compiler for the programming language, the Algol 60, in 1960.
The parallel composition of subsystems is as simple as the sequential composition of lines or statements in a conventional programming language.
www.freetechbooks.com /about292.html   (518 words)

  
 physics - Communicating sequential processes
In May 2003, that book was the third-most cited computer science reference of all time according to Citeseer (albeit a very unreliable source due to the nature of it sampling).
This book has been updated by Jim Davies at the Oxford University Computer Laboratory and the new edition is available for download as a pdf file at the Using CSP website.
Formal Systems develop CSP tools, some of which are freely downloadable.
www.physicsdaily.com /physics/Communicating_Sequential_Processes   (553 words)

  
 Citations: Communicating Sequential Processes - Hoare (ResearchIndex)   (Site not responding. Last check: 2007-10-18)
Hoare, C. Communicating sequential processes, Communications of the ACM 21 (1978), pp.
Communications of the ACM 21, 8 (August 1978), 666-677.
C.A.R. Hoare, "Communicating sequential processes." Communications of the ACM, 21(8):666-667, August 1978.
citeseer.ist.psu.edu /context/552/0   (245 words)

  
 Citations: Interaction categories and communicating sequential processes - Abramsky (ResearchIndex)   (Site not responding. Last check: 2007-10-18)
An asynchronous process category is constructed in the same manner as a synchronous process category, and thus its construction involves two steps: identifying an appropriate model category; and selecting a cover system to express bisimulation.
Whether a process is a span as in Cockett and Spooner or an object in a comma category as here is not important.
in which processes have linear types [24] Also, it is not difficult to show that (the classifying category for) a bicategory of spans is a traced monoidal category in the sense of Joyal et al.
citeseer.ist.psu.edu /context/156895/0   (3185 words)

  
 Virtual Library formal methods: CSP
The Modelling and Analysis of Security Protocols: The CSP Approach, Peter Ryan, Steve Schneider, Michael Goldsmith, Gavin Lowe and Bill Roscoe.
CSP - Communicating Sequential Processes, a brief introduction by Dan Richardson.
CCSP - an execution environment for CSP programs from the University of Missouri - Rolla, USA.
www.afm.sbu.ac.uk /csp   (190 words)

  
 25 Years of Communicating Sequential Processes, 7-8 July 2004, London, UK
http://www.lsbu.ac.uk/menass/csp25/ * Preliminary programme, titles/abstracts & a poster are now online This event has been organised to commemorate twenty-five years of CSP, since it has been about twenty-five years since the publication of Tony Hoare's original paper on Communicating Sequential Processes, today regarded as one of the influential papers in Computer Science.
The intention is to celebrate, reflect upon and look beyond the first quarter-century of CSP contributions to Computer Science.
CSP has made profound impacts on many areas stretching from semantics and logic, through the design of parallel programming languages to applications varying from distributed systems and parallel computing to web services and hardware circuits.
www.talkaboutcomputing.com /group/comp.sys.transputer/messages/10739.html   (332 words)

  
 [Islam-Online- Science, Ideas & Technology]
A concurrent program with a coarser granularity, on the other hand, would be a program which has two or more processes running in parallel, each executing several distinct operations and each of which has its own life thread throughout the execution time of the program.
Among the many formal methods available, three are highly distinguishable: Calculus of Communicating Systems (CCS), Communicating Sequential Processes (CSP), and Language of Temporal Orderings (LOTOS), all of which are formal specification methods that are concerned with modeling process communication and ordering of events.
LOTOS, however, which is based on the roots of CCS and CSP, provides an extended mechanism that allows for abstract data types.
www.islamonline.net /iol-english/dowalia/techng-01-03-2000/techng3.asp   (924 words)

  
 Communicating Sequential Processes for Java (JCSP)
Communicating Process Architectures 2007 (CPA 2007) conference home page, 8-11th.
Communicating Process Architectures 2006 (CPA 2006) conference home page, 15-18th.
Communicating Process Architectures 2004 (CPA 2004) conference home page, 5-8th.
www.cs.kent.ac.uk /projects/ofa/jcsp   (748 words)

  
 Communicating Sequential Processes - Moonbase   (Site not responding. Last check: 2007-10-18)
sequential processes which communicate), aka CSP, is a formalism for dealing with the interaction of concurrent processes.
It’s been used as the basis for the concurrency APIs of environments like Plan 9 and the Occam language.
Feedback is private by default; if it's okay for me to post your comment publically, be sure to say so.
moonbase.rydia.net /mental/blog/programming/communicating-sequential-processes.html   (70 words)

  
 MATHS: Process Algebras and Communicating Sequential Processes
Process algebras are very high level models of complex systems or programs.
If a result is true of all atomic steps and is preserved however we assemble the processes, then the result is true for all possible processes.
The idea that it helps to include an empty process that does nothing much comes from Karst Koymans and is worked out in detail by J L M Vranken in the paper [Vran97] published in Theoretical Computer Science in 1997.
www.csci.csusb.edu /dick/maths/math_73_Process_algebra.html   (1612 words)

  
 CSP25 - Models for Data Flow Sequential Processes   (Site not responding. Last check: 2007-10-18)
Hoare's traces model, Roscoe's stable failures model and Brookes and Roscoe's failures/divergences model of Communicating Sequential Processes.
As in CSP, operators are defined that are convenient for constructing processes in the various models.
the contents of input streams and output streams) has to be passed from a terminating process to its successor when processes are composed in sequence, as Hehner has observed.
www.lsbu.ac.uk /menass/csp25/programme/csp25mj.html   (198 words)

  
 Communicating Sequential Processes (CSP)   (Site not responding. Last check: 2007-10-18)
The CSP modell is based on the idea of several 'regular' sequential processes that are running in parallel to each other.
The important difference to a single sequential process is that the programmer never know, how much time a process will need to finish a (sub-) program.
We chose the CSP modell for the implementation of BAP, but omitted the semaphores and added some different functionality on the Client-Server Layer.
www.fraber.de /bap/bap25.html   (489 words)

  
 Communicating Sequential Processes (CSP), by C. A. R. Hoare (Electronic Version)
Communicating Sequential Processes, or CSP, is a language for describing patterns of interaction.
The book Communicating Sequential Processes was first published in 1985 by Prentice Hall International (who have kindly released the copyright); it is an excellent introduction to the language, and also to the mathematical theory.
An electronic version of the book has been produced, and may be copied, printed, and distributed free of charge.
www.usingcsp.com   (235 words)

  
 Java Communicating Sequential Processes
Communicating Sequential Processes is a mathematical theory for describing Parallel applications developed by C.A.R.Hoare.
The occam language was designed to implement the CSP model for the Transputer processor.
Threads are the method using by the Java language to allow more than one part of program to be executed at the same time.
www.cs.kent.ac.uk /projects/ofa/jcsp0-5/glossary.shtml   (154 words)

  
 communicating sequential processes - OneLook Dictionary Search
Communicating Sequential Processes : Free On-line Dictionary of Computing [home, info]
Communicating Sequential Processes : Dictionary of Algorithms and Data Structures [home, info]
Phrases that include communicating sequential processes: contextually communicating sequential processes
www.onelook.com /?loc=rescb&w=communicating+sequential+processes   (107 words)

  
 Communicating sequential processes Details, Meaning Communicating sequential processes Article and Explanation Guide
Communicating sequential processes Guide, Meaning, Facts, Information and Description
JCSP is a binding of CSP & Occam concepts in a Java thread support API.
This is an Article on Communicating sequential processes.
www.e-paranoids.com /c/co/communicating_sequential_processes.html   (605 words)

  
 CiteULike: Communicating sequential processes   (Site not responding. Last check: 2007-10-18)
This paper suggests that input and output are basic primitives of programming and that parallel composition of communicating sequential processes is a fundamental program structuring method.
Their use is illustrated by sample solutions of a variety of a familiar programming exercises.
@article{citeulike:785872, abstract = {This paper suggests that input and output are basic primitives of programming and that parallel composition of communicating sequential processes is a fundamental program structuring method.
www.citeulike.org /user/rgb/article/785872   (208 words)

  
 Communicating Sequential Processes - Seite bearbeiten - MedPort-Lexikon
Was halten Sie von der Aussage der privaten Krankenkassen, dass durch die Gesundheitsreform Gebührenerhöhungen von mindestens 10?% notwendig sind?
JCSP ist die Verbindung von CSP und Occam-Konzepten in einer Java-API.
Elektronische Version des Originalbuchs zu CSP von Tony Hoare (http://www.usingcsp.com/cspbook.pdf)en:Communicating sequential processes
www.medport.de /lexikon/index.php?title=Communicating_Sequential_Processes&action=edit§ion=3   (393 words)

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