PIAF: a knowledge-based/algorithmic top-down floorplanning system

Marwan A. Jabri*, David Skellern

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

5 Citations (Scopus)


A top-down floorplanning automation tool, PIAF, which combines knowledge-based and algorithmic techniques, is presented. PIAF designs floorplans by estimation, planning, and successive refinement using a strategy that separates the floorplanning process into either knowledge-based or algorithmic phases. The former implements qualitative reasoning, while the latter addresses fast quantitative processing. This strategy eases the acquisition of expert knowledge as subdomains become more narrow and produces results comparable to those of experienced integrated circuit designers in a fraction of the time. An example is given to illustrate PIAF's operation.

Original languageEnglish
Title of host publication26th conference on design automation, 1989
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages4
ISBN (Print)0897913108
Publication statusPublished - 1989
Externally publishedYes

Publication series

NameACM / IEEE Design Automation Conference Proceedings
ISSN (Print)0738-100X


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