Definitions for barrierˈbær i ər

This page provides all possible meanings and translations of the word barrier

Princeton's WordNetRate this definition:(0.00 / 0 votes)

  1. barrier(noun)

    a structure or object that impedes free movement

  2. barrier, roadblock(noun)

    any condition that makes it difficult to make progress or to achieve an objective

    "intolerance is a barrier to understanding"

  3. barrier(noun)

    anything serving to maintain separation by obstructing vision or access

WiktionaryRate this definition:(0.00 / 0 votes)

  1. barrier(Noun)

    A structure that bars passage.

  2. barrier(Noun)

    An obstacle or impediment.

  3. barrier(Noun)

    A boundary or limit.

Webster DictionaryRate this definition:(0.00 / 0 votes)

  1. Barrier(noun)

    a carpentry obstruction, stockade, or other obstacle made in a passage in order to stop an enemy

  2. Barrier(noun)

    a fortress or fortified town, on the frontier of a country, commanding an avenue of approach

  3. Barrier(noun)

    a fence or railing to mark the limits of a place, or to keep back a crowd

  4. Barrier(noun)

    an any obstruction; anything which hinders approach or attack

  5. Barrier(noun)

    any limit or boundary; a line of separation

FreebaseRate this definition:(0.00 / 0 votes)

  1. Barrier

    In parallel computing, a barrier is a type of synchronization method. A barrier for a group of threads or processes in the source code means any thread/process must stop at this point and cannot proceed until all other threads/processes reach this barrier. Many collective routines and directive-based parallel languages impose implicit barriers. For example, a parallel do loop in Fortran with OpenMP will not be allowed to continue on any thread until the last iteration is completed. This is in case the program relies on the result of the loop immediately after its completion. In message passing, any global communication may imply a barrier. Classic barrier constructs define the set of participating processes/threads statically. This is usually done either at program startup or when a barrier like the Pthreads barrier is instantiated. This restricts the possible applications for which barriers can be used. To support more dynamic programming paradigms like fork/join parallelism, the sets of participants have to be dynamic. Thus, the set of processes/threads participating in a barrier operation needs to be able to change over time. X10 introduced the concept of clocks for that purpose, which provide a dynamic barrier semantic. Building on clocks, phasers have been proposed to add even more flexibility to barrier synchronization. With phasers it is possible to express data dependencies between the participating processes explicitly to avoid unnecessary over-synchronization.

Dictionary of Military and Associated TermsRate this definition:(0.00 / 0 votes)

  1. barrier

    A coordinated series of obstacles designed or employed to channel, direct, restrict, delay, or stop the movement of an opposing force and to impose additional losses in personnel, time, and equipment on the opposing force. Barriers can exist naturally, be man-made, or a combination of both.

British National Corpus

  1. Nouns Frequency

    Rank popularity for the word 'barrier' in Nouns Frequency: #1373

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