Integration of Dataflow-Based Heterogeneous Multiprocessor Scheduling Techniques in GNU Radio

As the variety of off-the-shelf processors expands, traditional implementation methods of systems for digital signal processing and communication are no longer adequate to achieve design objectives in a timely manner. There is a necessity for designers to easily track the changes in computing platfo...

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Bibliographic Details
Published in:Journal of signal processing systems 2013-02, Vol.70 (2), p.177-191
Main Authors: Zaki, George F., Plishker, William, Bhattacharyya, Shuvra S., Clancy, Charles, Kuykendall, John
Format: Article
Language:English
Subjects:
Circuits and Systems
Computer Imaging
Computer programs
Design engineering
Electrical Engineering
Engineering
Image Processing and Computer Vision
Libraries
Multiprocessor
Pattern Recognition
Pattern Recognition and Graphics
Platforms
Processors
Radio
Signal,Image and Speech Processing
Software
Vision
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Summary:As the variety of off-the-shelf processors expands, traditional implementation methods of systems for digital signal processing and communication are no longer adequate to achieve design objectives in a timely manner. There is a necessity for designers to easily track the changes in computing platforms, and apply them efficiently while reusing legacy code and optimized libraries that target specialized features in single processing units. In this context, we propose an integration workflow to schedule and implement Software Defined Radio (SDR) protocols that are developed using the GNU Radio environment on heterogeneous multiprocessor platforms. We show how to utilize Single Instruction Multiple Data (SIMD) units provided in Graphics Processing Units (GPUs) along with vector accelerators implemented in General Purpose Processors (GPPs). We augment a popular SDR framework (i.e, GNU Radio) with a library that seamlessly allows offloading of algorithm kernels mapped to the GPU without changing the original protocol description. Experimental results show how our approach can be used to efficiently explore design spaces for SDR system implementation, and examine the overhead of the integrated backend (software component) library.
ISSN:1939-8018
1939-8115
DOI:10.1007/s11265-012-0696-0