What is predication (branch predication)? - Definition from WhatIs.com

Definition

predication (branch predication)

Part of the Microprocessors glossary:

Predication (also called branch predication ) is a process implemented in Explicitly Parallel Instruction Computing ( EPIC )-based processor s and their compiler s to increase performance by eschewing branch prediction (a common technique used in modern processors), where a wrong guess by the processor brings a performance penalty. In predication, all the possible code branches are executed in parallel before the branch condition is proved. Applications like data mining and data warehousing that depend on large back-end database stand to gain the most from predicative methods.

Intel's IA-64 architecture is based on EPIC and the first processor in the IA-64 line, the Itanium , uses predication.

This was last updated in March 2011
Posted by: Margaret Rouse

Related Terms

Definitions

  • pressure sensing

    - Pressure sensing is the capacity for some system to sense the force exerted on a surface per unit area and express that force in the strength of an electric signal. (WhatIs.com)

  • neurosynaptic chip (cognitive chip)

    - A neurosynaptic chip, also known as a cognitive chip, is a computer processor that functions more like a biological brain than a typical CPU does. (WhatIs.com)

  • von Neumann bottleneck

    - The von Neumann bottleneck is a limitation on throughput caused by the standard personal computer architecture. (WhatIs.com)

Glossaries

  • Microprocessors

    - Terms related to microprocessors, including definitions about silicon chips and words and phrases about computer processors.

  • Internet applications

    - This WhatIs.com glossary contains terms related to Internet applications, including definitions about Software as a Service (SaaS) delivery models and words and phrases about web sites, e-commerce ...

Ask a Question. Find an Answer.Powered by ITKnowledgeExchange.com

Ask An IT Question

Get answers from your peers on your most technical challenges

Ask Question

Tech TalkComment

Share
Comments

    Results

    Contribute to the conversation

    All fields are required. Comments will appear at the bottom of the article.