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Concurrent vs Parallel - What's the difference?

concurrent | parallel |

In computing terms the difference between concurrent and parallel

is that concurrent is involving more than one thread of computation while parallel is involving the processing of multiple tasks at the same time.

As adjectives the difference between concurrent and parallel

is that concurrent is happening at the same time; simultaneous while parallel is equally distant from one another at all points.

As nouns the difference between concurrent and parallel

is that concurrent is one who, or that which, concurs; a joint or contributory cause while parallel is one of a set of parallel lines.

As an adverb parallel is

with a parallel relationship.

As a verb parallel is

to construct or place something parallel to something else.

concurrent

English

of building models [http://en.wikiversity.org/wiki/Concurrent_testings].

Adjective

(en adjective)
  • Happening at the same time; simultaneous.
  • * Tyndall
    • changes concurrent with the visual changes in the eye
    (Francis Bacon)
  • Belonging to the same period; contemporary.
  • Acting in conjunction; agreeing in the same act or opinion; contibuting to the same event of effect.
  • * Sir J. Davies
    • I join with these laws the personal presence of the king's son, as a concurrent cause of this reformation.
  • * Bishop Warburton
    • the concurrent testimony of antiquity
  • Joint and equal in authority; taking cognizance of similar questions; operating on the same objects.
    • the concurrent jurisdiction of courts
  • (geometry) Meeting in one point.
  • Running alongside one another on parallel courses; moving together in space.
  • (computing) Involving more than one thread of computation.

    • Coordinate terms

    * leading, lagging

    Derived terms

    * concurrent indicator * concurrently

    Noun

    (en noun)
  • One who, or that which, concurs; a joint or contributory cause.
  • * Dr. H. More
    • To all affairs of importance there are three necessary concurrents time, industry, and faculties.
  • One pursuing the same course, or seeking the same objects; hence, a rival; an opponent.
  • * Holland
    • Menander had no concurrent in his time that came near unto him.
  • One of the supernumerary days of the year over fifty-two complete weeks; so called because they concur with the solar cycle, the course of which they follow.
    • (Webster 1913) ----

    parallel

    English

    (wikipedia parallel)

    Adjective

    (-)
  • Equally distant from one another at all points.
    • The horizontal lines on my notebook paper are parallel .
  • * Hakluyt
    • revolutions parallel to the equinoctial
  • Having the same overall direction; the comparison is indicated with "to".
    • The railway line runs parallel to the road.
    The two railway lines are parallel .
  • * Addison
    • When honour runs parallel with the laws of God and our country, it cannot be too much cherished.
  • (hyperbolic geometry) said of a pair of lines:'' that they either do not intersect or they coincide Jos Leys — ''The hyperbolic chamber (paragraph 8)
  • (computing) Involving the processing of multiple tasks at the same time
    • a parallel algorithm

    Antonyms

    * perpendicular, skew, serial

    Adverb

    (en adverb)
  • With a parallel relationship.
    • The road runs parallel with the canal.

    Related terms

    * (l)

    Noun

    (en noun)
  • One of a set of parallel lines.
  • * Alexander Pope
    • Who made the spider parallels design, / Sure as De Moivre, without rule or line?
  • Direction conformable to that of another line.
  • * Garth
    • lines that from their parallel decline
  • A line of latitude.
    • The 31st parallel passes through the center of my town.
  • An arrangement of electrical components such that a current flows along two or more paths; see in parallel.
  • Something identical or similar in essential respects.
  • * Alexander Pope
    • None but thyself can be thy parallel .
  • A comparison made; elaborate tracing of similarity.
    • Johnson's parallel between Dryden and Pope
  • (military) One of a series of long trenches constructed before a besieged fortress, by the besieging force, as a cover for troops supporting the attacking batteries. They are roughly parallel to the line of outer defenses of the fortress.
  • (printing) A character consisting of two parallel vertical lines, used in the text to direct attention to a similarly marked note in the margin or at the foot of a page.

    • Antonyms

    * perpendicular, skew (?)

    Verb

  • To construct or place something parallel to something else.
  • * Sir Thomas Browne
    • The needle doth parallel and place itself upon the true meridian.
  • Of a path etc: To be parallel to something else.
  • Of a process etc: To be analogous to something else.
  • To compare or liken something to something else.
  • To make to conform to something else in character, motive, aim, etc.
  • * Shakespeare
    • His life is parallelled / Even with the stroke and line of his great justice.
  • To equal; to match; to correspond to.
    • (Shakespeare)
  • To produce or adduce as a parallel.
  • * Shakespeare
    • My young remembrance cannot parallel / A fellow to it.
    (John Locke)

    Derived terms

    * embarrassingly parallel * forty-ninth parallel * parallel algorithm * parallel circuit * parallel computing * parallelism * parallelogram * parallel universe * unparalleled

    See also

    * sequential

    References

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