Title
Enabling Approximate Storage through Lossy Media Data Compression
Abstract
As compute capabilities continue to scale, memory capacity and bandwidth continue to lag behind. Data compression is an effective approach to improving memory capacity and bandwidth; but prior works have focused primarily on lossless compression and retrieval for data-critical applications. While data integrity is critical to many applications, a growing number of memory-bound applications contain non-critical program data; this property can be exploited to improve memory performance and capacity. In this work, we enable approximate storage to exploit the inherent error resilience of multimedia and other applications, through lossy compression, to improve storage without adversely affecting application functionality. We realize an incidence of approximate storage through modification of the Base-Delta-Immediate algorithm to create a lossy memory compression algorithm. We conclude that approximate storage is an effective and promising technique for improving effective memory capacity and decreasing the energy cost of memory access; results show that memory capacity can be increased by 15% with only 3% loss in image recognition application quality.
Year
DOI
Venue
2019
10.1145/3299874.3318029
Proceedings of the 2019 on Great Lakes Symposium on VLSI
Keywords
Field
DocType
approximate storage, inherent error resilience, lossy compression
Lossy compression,Computer science,Real-time computing,Exploit,Bandwidth (signal processing),Data integrity,Data compression,Lag,Computer engineering,Lossless compression
Conference
ISSN
ISBN
Citations 
1066-1395
978-1-4503-6252-8
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
Brian Worek100.34
Paul Ampadu228528.55