6533b85afe1ef96bd12ba03b

RESEARCH PRODUCT

Methodology for Structured Data-Path Implementation in VLSI Physical Design: A Case Study

Dhilleswararao PudiSamuel Jigme HarrisonDimitrios StathisSrinivas BoppuAhmed HemaniLinga Reddy Cenkeramaddi

subject

Computer Networks and CommunicationsHardware and ArchitectureControl and Systems Engineeringdata-path; placement; routing; innovus; electronic design automation; physical designSignal ProcessingElectrical and Electronic EngineeringVDP::Teknologi: 500::Informasjons- og kommunikasjonsteknologi: 550

description

State-of-the-art modern microprocessor and domain-specific accelerator designs are dominated by data-paths composed of regular structures, also known as bit-slices. Random logic placement and routing techniques may not result in an optimal layout for these data-path-dominated designs. As a result, implementation tools such as Cadence’s Innovus include a Structured Data-Path (SDP) feature that allows data-path placement to be completely customized by constraining the placement engine. A relative placement file is used to provide these constraints to the tool. However, the tool neither extracts nor automatically places the regular data-path structures. In other words, the relative placement file is not automatically generated. In this paper, we propose a semi-automated method for extracting bit-slices from the Innovus SDP flow. It has been demonstrated that the proposed method results in 17% less density or use for a pixel buffer design. At the same time, the other performance metrics are unchanged when compared to the traditional place and route flow.

yearjournalcountryeditionlanguage
2022-09-19Electronics
https://doi.org/10.3390/electronics11182965