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A GPU-based Real-time Software Correlation System for the Murchison Widefield Array Prototype

Wayth, Randall B; Greenhill, Lincoln; Briggs, Franklin

Description

Modern graphics processing units (GPUs) are inexpensive commodity hardware that offer Tflop/s theoretical computing capacity. GPUs are well suited to many compute-intensive tasks including digital signal processing. We describe the implementation and performance of a GPU-based digital correlator for radio astronomy. The correlator is implemented using the NVIDIA CUDA development environment. We evaluate three design options on two generations of NVIDIA hardware. The different designs utilize...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/18313
Source: Publications of the Astronomical Society of the Pacific
DOI: 10.1086/605334

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