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arXiv · 2006.05693

A GPU Register File using Static Data Compression

Alexandra Angerd·Erik Sintorn·Per Stenström
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Abstract

GPUs rely on large register files to unlock thread-level parallelism for high throughput. Unfortunately, large register files are power hungry, making it important to seek for new approaches to improve their utilization. This paper introduces a new register file organization for efficient register-packing of narrow integer and floating-point operands designed to leverage on advances in static analysis. We show that the hardware/software co-designed register file organization yields a performance improvement of up to 79%, and 18.6%, on average, at a modest output-quality degradation.

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Alexandra Angerd, Erik Sintorn, Per Stenström. 2020-06-10. A GPU Register File using Static Data Compression. https://doi.org/10.1145/3404397.3404431

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