pipeline
n. tube, pipe; series of connected pipes; path along which data is transferred within the central processing unit (Computers) | ||||
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Pipelines definition was found in categories: Computer & Internet(1) Language, Idioms & Slang(1) Science & Technology(1) Society & Culture(1) Encyclopedia(1)
Pipelines Definition from Computer & Internet Dictionaries & Glossaries
| FOLDOC |
pipeline
<architecture> A sequence of functional units ("stages") which performs a task in several steps, like an assembly line in a factory. Each functional unit takes inputs and produces outputs which are stored in its output buffer. One stage's output buffer is the next stage's input buffer. This arrangement allows all the stages to work in parallel thus giving greater throughput than if each input had to pass through the whole pipeline before the next input could enter.
The costs are greater latency and complexity due to the need to synchronise the stages in some way so that different inputs do not interfere. The pipeline will only work at full efficiency if it can be filled and emptied at the same rate that it can process.
Pipelines may be synchronous or asynchronous. A synchronous pipeline has a master clock and each stage must complete its work within one cycle. The minimum clock period is thus determined by the slowest stage. An asynchronous pipeline requires handshaking between stages so that a new output is not written to the interstage buffer before the previous one has been used.
Many CPUs are arranged as one or more pipelines, with different stages performing tasks such as fetch instruction, decode instruction, fetch arguments, arithmetic operations, store results. For maximum performance, these rely on a continuous stream of instructions fetched from sequential locations in memory. Pipelining is often combined with instruction prefetch in an attempt to keep the pipeline busy.
When a branch is taken, the contents of early stages will contain instructions from locations after the branch which should not be executed. The pipeline then has to be flushed and reloaded. This is known as a pipeline break.
(1996-10-13)
<architecture> A sequence of functional units ("stages") which performs a task in several steps, like an assembly line in a factory. Each functional unit takes inputs and produces outputs which are stored in its output buffer. One stage's output buffer is the next stage's input buffer. This arrangement allows all the stages to work in parallel thus giving greater throughput than if each input had to pass through the whole pipeline before the next input could enter.
The costs are greater latency and complexity due to the need to synchronise the stages in some way so that different inputs do not interfere. The pipeline will only work at full efficiency if it can be filled and emptied at the same rate that it can process.
Pipelines may be synchronous or asynchronous. A synchronous pipeline has a master clock and each stage must complete its work within one cycle. The minimum clock period is thus determined by the slowest stage. An asynchronous pipeline requires handshaking between stages so that a new output is not written to the interstage buffer before the previous one has been used.
Many CPUs are arranged as one or more pipelines, with different stages performing tasks such as fetch instruction, decode instruction, fetch arguments, arithmetic operations, store results. For maximum performance, these rely on a continuous stream of instructions fetched from sequential locations in memory. Pipelining is often combined with instruction prefetch in an attempt to keep the pipeline busy.
When a branch is taken, the contents of early stages will contain instructions from locations after the branch which should not be executed. The pipeline then has to be flushed and reloaded. This is known as a pipeline break.
(1996-10-13)
Pipelines Definition from Language, Idioms & Slang Dictionaries & Glossaries
| WordNet 2.0 |
pipeline
Noun
1. gossip spread by spoken communication; "the news of their affair was spread by word of mouth"
(synonym) grapevine, word of mouth
(hypernym) gossip, comment, scuttlebutt
2. a pipe used to transport liquids or gases; "a pipeline runs from the wells to the seaport"
(synonym) line
(hypernym) pipe, pipage, piping
(hyponym) Alaskan pipeline, trans-Alaska pipeline
Noun
1. gossip spread by spoken communication; "the news of their affair was spread by word of mouth"
(synonym) grapevine, word of mouth
(hypernym) gossip, comment, scuttlebutt
2. a pipe used to transport liquids or gases; "a pipeline runs from the wells to the seaport"
(synonym) line
(hypernym) pipe, pipage, piping
(hyponym) Alaskan pipeline, trans-Alaska pipeline
Pipelines Definition from Science & Technology Dictionaries & Glossaries
| EIA Energy Glossary |
Pipeline (natural gas)
A continuous pipe conduit, complete with such equipment as valves, compressor stations, communications systems, and meters for transporting natural and/or supplemental gas from one point to another, usually from a point in or beyond the producing field or processing plant to another pipeline or to points of utilization. Also refers to a company operating such facilities.
A continuous pipe conduit, complete with such equipment as valves, compressor stations, communications systems, and meters for transporting natural and/or supplemental gas from one point to another, usually from a point in or beyond the producing field or processing plant to another pipeline or to points of utilization. Also refers to a company operating such facilities.
Pipeline (petroleum)
Crude oil and product pipelines used to transport crude oil and petroleum products, respectively (including interstate, intrastate, and intracompany pipelines), within the 50 states and the District of Columbia.
Pipeline, distribution
A pipeline that conveys gas from a transmission pipeline to its ultimate consumer.
Pipeline, gathering
A pipeline that conveys gas from a production well/field to a gas processing plant or transmission pipeline for eventual delivery to end-use consumers.
Pipeline, transmission
A pipeline that conveys gas from a region where it is produced to a region where it is to be distributed.
Pipelines, rate regulated
FRS (Financial Reporting System Survey) establishes three pipeline segments: crude/liquid (raw materials); natural gas; and refined products. The pipelines included in these segments are all federally or State rate-regulated pipeline operations, which are included in the reporting company's consolidated financial statements. However, at the reporting company's option, intrastate pipeline operations may be included in the U.S. Refining/Marketing Segment if: they would comprise less than 5 percent of U.S. Refining/Marketing Segment net PP&E, revenues, and earnings in the aggregate; and if the inclusion of such pipelines in the consolidated financial statements adds less than $100 million to the net PP&E reported for the U.S. Refining/Marketing Segment.
Pipelines Definition from Society & Culture Dictionaries & Glossaries
| Roller Coaster Glossary |
Pipeline
An as-yet unopened type of coaster, developed by Arrow and similar to a heartline.
An as-yet unopened type of coaster, developed by Arrow and similar to a heartline.
Pipelines Definition from Encyclopedia Dictionaries & Glossaries
| Wikipedia English - The Free Encyclopedia |
Pipeline
Pipeline of CPU may refer to:
- Pipeline transport, a conduit made from pipes connected end-to-end for long-distance fluid transport
- Plastic pressure pipeline, for fluid handling
- Pipeline (computer), a chain of data-processing stages or a CPU optimization found on modern processors
- Pipeline (software), a chain of data-processing processes or other software entities
- Graphics pipeline, the method of rasterization-based rendering as supported by graphics hardware
- Pipeline (Unix), a set of process chained by their standard streams
- XML pipeline, a connection of XML transformations
- Pipeline Plots, alleged political plots related to the oil economy
- Banzai Pipeline, a surfing spot on the North Shore of Oahu
- Mister Pipeline, an Oahu surfer title
- Tolt pipeline trail, an equestrian and biking trail in Redmond, Washington, USA
- Pipeline card, a discount scheme (currently in planning) in the UK which aims to give 5p-7p discount on petrol and diesel
- Pipeline is a term describing the development of pharmaceuticals.
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