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arXiv · 2505.03269

The Tensor-Core Beamformer: A High-Speed Signal-Processing Library for Multidisciplinary Use

Leon Oostrum·Bram Veenboer·Ronald Rook·Michael Brown·Pieter Kruizinga·John W. Romein
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Abstract

Beamforming is a well-known technique to combine signals from multiple sensors. It has a wide range of application domains. This paper introduces the Tensor-Core Beamformer: a generic, optimized beamformer library that harnesses the computational power of GPU tensor cores to accelerate beamforming computations. The library hides the complexity of tensor cores from the user, and supports 16-bit and 1-bit precision. An extensive performance evaluation on NVIDIA and AMD GPUs shows that the library outperforms traditional beamforming on regular GPU cores by a wide margin, at much higher energy efficiency. In the 16-bit mode, it achieves over 600 TeraOps/s on an AMD MI300X GPU, while approaching 1 TeraOp/J. In the 1-bit mode, it breaks the 3 PetaOps/s barrier and achieves over 10 TeraOps/J on an NVIDIA A100 GPU. The beamforming library can be easily integrated into existing pipelines. We demonstrate its use for medical ultrasound and radio-astronomical instruments.

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Leon Oostrum, Bram Veenboer, Ronald Rook, Michael Brown, Pieter Kruizinga, John W. Romein. 2025-05-06. The Tensor-Core Beamformer: A High-Speed Signal-Processing Library for Multidisciplinary Use. https://arxiv.org/abs/2505.03269

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