Generation of Efficient Nested Loops from Polyhedra.
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| Title: | Generation of Efficient Nested Loops from Polyhedra. |
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| Authors: | Quilleré, Fabien1, Rajopadhye, Sanjay1, Wilde, Doran2 |
| Source: | International Journal of Parallel Programming. Oct2000, Vol. 28 Issue 5, p469-498. 30p. |
| Subjects: | Polyhedra models, Geometric modeling, Code generators, Coding theory, Program generators (Computer programs), Parallel programming, Computer programming, Algorithms |
| Abstract: | Automatic parallelization in the polyhedral model is based on affine transformations from an original computation domain (iteration space) to a target space-time domain, often with a different transformation for each variable. Code generation is an often ignored step in this process that has a significant impact on the quality of the final code. It involves making a trade-off between code size and control code simplification/optimization. Previous methods of doing code generation are based on loop splitting, however they have nonoptimal behavior when working on parameterized programs. We present a general parameterized method for code generation based on dual representation of polyhedra. Our algorithm uses a simple recursion on the dimensions of the domains, and enables fine control over the tradeoff between code size and control overhead. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Parallel Programming is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 17143262 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Generation of Efficient Nested Loops from Polyhedra. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Quilleré%2C+Fabien%22">Quilleré, Fabien</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rajopadhye%2C+Sanjay%22">Rajopadhye, Sanjay</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wilde%2C+Doran%22">Wilde, Doran</searchLink><relatesTo>2</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Parallel+Programming%22">International Journal of Parallel Programming</searchLink>. Oct2000, Vol. 28 Issue 5, p469-498. 30p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Polyhedra+models%22">Polyhedra models</searchLink><br /><searchLink fieldCode="DE" term="%22Geometric+modeling%22">Geometric modeling</searchLink><br /><searchLink fieldCode="DE" term="%22Code+generators%22">Code generators</searchLink><br /><searchLink fieldCode="DE" term="%22Coding+theory%22">Coding theory</searchLink><br /><searchLink fieldCode="DE" term="%22Program+generators+%28Computer+programs%29%22">Program generators (Computer programs)</searchLink><br /><searchLink fieldCode="DE" term="%22Parallel+programming%22">Parallel programming</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+programming%22">Computer programming</searchLink><br /><searchLink fieldCode="DE" term="%22Algorithms%22">Algorithms</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Automatic parallelization in the polyhedral model is based on affine transformations from an original computation domain (iteration space) to a target space-time domain, often with a different transformation for each variable. Code generation is an often ignored step in this process that has a significant impact on the quality of the final code. It involves making a trade-off between code size and control code simplification/optimization. Previous methods of doing code generation are based on loop splitting, however they have nonoptimal behavior when working on parameterized programs. We present a general parameterized method for code generation based on dual representation of polyhedra. Our algorithm uses a simple recursion on the dimensions of the domains, and enables fine control over the tradeoff between code size and control overhead. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Parallel Programming is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1023/a:1007554627716 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 30 StartPage: 469 Subjects: – SubjectFull: Polyhedra models Type: general – SubjectFull: Geometric modeling Type: general – SubjectFull: Code generators Type: general – SubjectFull: Coding theory Type: general – SubjectFull: Program generators (Computer programs) Type: general – SubjectFull: Parallel programming Type: general – SubjectFull: Computer programming Type: general – SubjectFull: Algorithms Type: general Titles: – TitleFull: Generation of Efficient Nested Loops from Polyhedra. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Quilleré, Fabien – PersonEntity: Name: NameFull: Rajopadhye, Sanjay – PersonEntity: Name: NameFull: Wilde, Doran IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2000 Type: published Y: 2000 Identifiers: – Type: issn-print Value: 08857458 Numbering: – Type: volume Value: 28 – Type: issue Value: 5 Titles: – TitleFull: International Journal of Parallel Programming Type: main |
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