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RETRACTED ARTICLE: AI system outperforms humans in designing floorplans for microchips
RETRACTED ARTICLE: AI system outperforms humans in designing floorplans for microchips

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- Retraction [21 September 2023](#correction-0)

# RETRACTED ARTICLE: AI system outperforms humans in designing floorplans for microchips

A machine-learning system has been trained to place memory blocks in microchip designs. The system beats human experts at the task, and offers the promise of better, more-rapidly produced chip designs than are currently possible.


By


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1. [Andrew B. Kahng](mailto:abk@ucsd.edu)

1. Andrew B. Kahng is in the Department of Computer Science and Engineering, and in the Department of Electrical and Computer Engineering, University of California, San Diego, La Jolla, California 92093, USA.


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Success or failure in designing microchips depends heavily on steps known as floorplanning and placement. These steps determine where memory and logic elements are located on a chip. The locations, in turn, strongly affect whether the completed chip design can satisfy operational requirements such as processing speed and power efficiency. So far, the floorplanning task, in particular, has defied all attempts at automation. It is therefore performed iteratively and painstakingly, over weeks or months, by expert human engineers. But in [a paper in _Nature_](https://www.nature.com/articles/s41586-021-03544-w), researchers from Google (Mirhoseini _et al_.[1](#ref-CR1)) report a machine-learning approach that achieves superior chip floorplanning in hours.

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_Nature_ **594**, 183-185 (2021)

_doi: https://doi.org/10.1038/d41586-021-01515-9_

### Updates & Corrections

- **Retraction 21 September 2023**: The author has retracted this article because new information about the methods used in the reported paper (A. Mirhoseini _et al._ _Nature_ **594**, 207–212; 2021) has become available since publication, and that has changed the author’s assessment of, and conclusions about, the paper’s contributions. _Nature_ is also doing an independent investigation of the performance claims in the paper.


## References

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