ABCDPlace: Accelerated Batch-Based Concurrent Detailed Placement on Multithreaded CPUs and GPUs | IEEE Journals & Magazine | IEEE Xplore

ABCDPlace: Accelerated Batch-Based Concurrent Detailed Placement on Multithreaded CPUs and GPUs


Abstract:

Placement is an important step in modern verylarge-scale integrated (VLSI) designs. Detailed placement is a placement refining procedure intensively called throughout the...Show More

Abstract:

Placement is an important step in modern verylarge-scale integrated (VLSI) designs. Detailed placement is a placement refining procedure intensively called throughout the design flow, thus its efficiency has a vital impact on design closure. However, since most detailed placement techniques are inherently greedy and sequential, they are generally difficult to parallelize. In this article, we present a concurrent detailed placement framework, ABCDPlace, exploiting multithreading and graphic processing unit (GPU) acceleration. We propose batch-based concurrent algorithms for widely adopted sequential detailed placement techniques, such as independent set matching, global swap, and local reordering. The experimental results demonstrate that ABCDPlace can achieve 2× -5× faster runtime than sequential implementations with multithreaded CPU and over 10× with GPU on ISPD 2005 contest benchmarks without quality degradation. On larger industrial benchmarks, we show more than 16× speedup with GPU over the state-of-the-art sequential detailed placer. ABCDPlace finishes the detailed placement of a 10-million-cell industrial design in 1 min.
Page(s): 5083 - 5096
Date of Publication: 04 February 2020

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