TCG-S: Orthogonal coupling of P*-admissible representations for general floorplans

Jai Ming Lin, Yao Wen Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)


We extend in this paper the concept of the P-admissible floorplan representation to that of the P*-admissible one. A P*-admissible representation can model the most general floorplans. Each of the currently existing P*-admissible representations, SP, BSG, and TCG, has its strengths as well as weaknesses. We show the equivalence of the two most promising P*-admissible representations, TCG and SP, and integrate TCG with a packing sequence (part of SP) into a new representation, called TCG-S. TCG-S combines the advantages of SP and TCG and at the same time eliminates their disadvantages. With the property of SP, faster packing and perturbation schemes are possible. Inherited nice properties from TCG, the geometric relations among modules are transparent to TCG-S (implying faster convergence to a desired solution), placement with position constraints becomes much easier, and incremental update for cost evaluation can be realized. These nice properties make TCG-S a superior representation which exhibits an elegant solution structure to facilitate the search for a desired floorplan/placement. Extensive experiments show that TCG-S results in the best area utilization, wirelength optimization, convergence speed, and stability among existing works and is very flexible in handling placement with special constraints.

Original languageEnglish
Title of host publicationProceedings of the 39th Annual Design Automation Conference, DAC'02
Number of pages6
Publication statusPublished - 2002 Aug 31
Event39th Annual Design Automation Conference, DAC'02 - New Orleans, LA, United States
Duration: 2002 Jun 102002 Jun 14

Publication series

NameProceedings - Design Automation Conference
ISSN (Print)0738-100X


Other39th Annual Design Automation Conference, DAC'02
Country/TerritoryUnited States
CityNew Orleans, LA

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Control and Systems Engineering


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