Printer Friendly
Dictionary, Encyclopedia and Thesaurus - The Free Dictionary
1,764,696,148 visitors served.
forum mailing list For webmasters
?
New: Language forums
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

parallelism
(redirected from Paralellism)

   Also found in: Medical, Legal, Wikipedia 0.04 sec.

parallelism

An overlapping of processing, input/output (I/O) or both.


parallelism
Philosophy the dualistic doctrine that mental and physical processes are regularly correlated but are not causally connected, so that, for example, pain always accompanies, but is not caused by, a pin-prick

1.parallelism - parallel processing.
2.(parallel)parallelism - The maximum number of independent subtasks in a given task at a given point in its execution. E.g. in computing the expression

(a + b) *

(c + d) the expressions a, b, c and d can all be calculated in parallel giving a degree of parallelism of (at least) four. Once they have been evaluated then the expressions a + b and c + d can be calculated as two independent parallel processes.

The Bernstein condition states that processes P and Q can be executed in parallel (or in either sequential order) only if:

(i) there is no overlap between the inputs of P and the outputs of Q and vice versa and

(ii) there is no overlap between the outputs of P, the outputs of Q and the inputs of any other task.

If process P outputs value v which process Q reads then P must be executed before Q. If both processes write to some variable then its final value will depend on their execution order so they cannot be executed in parallel if any other process depends on that variable's value.


How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
?Page tools
Printer friendly
Cite / link
Email
Feedback
? Mentioned in ? References in periodicals archive
 
It is said to provide a closing and clamping force with unequaled paralellism and even distribution of force across the platen.
 
Encyclopedia browser? ? Full browser
 
 
Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2009 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.