About: Automatic parallelization

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Automatic parallelization, also auto parallelization, or autoparallelization refers to converting sequential code into multi-threaded and/or vectorized code in order to use multiple processors simultaneously in a shared-memory multiprocessor (SMP) machine. Fully automatic parallelization of sequential programs is a challenge because it requires complex program analysis and the best approach may depend upon parameter values that are not known at compilation time.

Attributes	Values
rdf:type	Thing
rdfs:label	Automatic parallelization (en)
rdfs:comment	Automatic parallelization, also auto parallelization, or autoparallelization refers to converting sequential code into multi-threaded and/or vectorized code in order to use multiple processors simultaneously in a shared-memory multiprocessor (SMP) machine. Fully automatic parallelization of sequential programs is a challenge because it requires complex program analysis and the best approach may depend upon parameter values that are not known at compilation time. (en)
rdfs:seeAlso	Automatic parallelization tool
sameAs	Automatic parallelization Automatic parallelization
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Subject	Compiler optimizations Parallel computing Articles with example Fortran code
Link from a Wikipage to an external page	https://archive.org/details/byte-magazine-1989-12/page/n382/mode/1up
prov:wasDerivedFrom	http://en.wikipedia.org/wiki/Automatic_parallelization?oldid=1064702467&ns=0
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Wikipage revision ID	1064702467 (xsd:integer)
Link from a Wikipage to another Wikipage	Fortran Program analysis Alias analysis Aliasing (computing) Analyser Automatic parallelization tool Automatic vectorization Binary Modular Dataflow Machine SequenceL Thread (computing) Byte (magazine) C (programming language) Compiler optimizations Parallel computing Distributed memory Message passing Occam (programming language) Pipeline (software) Preprocessor Runtime (program lifecycle phase) Distributed memory Source-to-source compiler Source code Compiler Computer configuration Control flow High Performance Fortran Microprocessor Motion compensation OpenHMPP OpenMP Orthogonal frequency-division multiplexing Parallel computing Speculative multithreading Embarrassingly parallel S&P Global Scalable parallelism Scheduling (computing) 6-way Systolic array Dependence analysis Transputer Vector Fabrics, B.V. Vectorization Articles with example Fortran code Parallel rendering Iteration Loop nest optimization Loop splitting Lexical analysis Multiprocessing Polytope model
has abstract	Automatic parallelization, also auto parallelization, or autoparallelization refers to converting sequential code into multi-threaded and/or vectorized code in order to use multiple processors simultaneously in a shared-memory multiprocessor (SMP) machine. Fully automatic parallelization of sequential programs is a challenge because it requires complex program analysis and the best approach may depend upon parameter values that are not known at compilation time. The programming control structures on which autoparallelization places the most focus are loops, because, in general, most of the execution time of a program takes place inside some form of loop.There are two main approaches to parallelization of loops: pipelined multi-threading and cyclic multi-threading. For example, consider a loop that on each iteration applies a hundred operations, and runs for a thousand iterations. This can be thought of as a grid of 100 columns by 1000 rows, a total of 100,000 operations. Cyclic multi-threading assigns each row to a different thread. Pipelined multi-threading assigns each column to a different thread. (en)
foaf:isPrimaryTopicOf	http://en.wikipedia.org/wiki/Automatic_parallelization
is Wikipage redirect of	Auto-parallelisation Auto parallelisation Auto parallelization Automatic parallelisation Autoparallelisation Parallelizing compiler Auto-parallelization Automatic parallelizing Autoparallelization Parallelizing Irregular algorithm
is Link from a Wikipage to another Wikipage of	Normalized loop Array access analysis Auto-parallelisation Auto parallelisation Auto parallelization Automatic parallelisation Automatic parallelization tool Autoparallelisation General-purpose computing on graphics processing units DOPIPE Linear map Compiler

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