Speaker: Montse Ros
When: 1:00PM Thursday 23rd October 2003
Venue: GPSouth 78-344
Abstract:
Code size has always been an important issue for all embedded applications as well as larger systems. Code compression techniques have been devised as a way of battling bloated code; however, the impact of VLIW compiler methods and outputs on these compression schemes has not been thoroughly investigated.
This paper describes the application of single- and multiple-instruction dictionary methods for code compression to decrease overall code size for the TI TMS320C6xxx DSP family. The compression scheme is applied to benchmarks taken from the Mediabench benchmark suite built with differing compiler optimization parameters.
In the single instruction encoding scheme, it was found that compression ratios were not a useful indicator of the best overall code size - the best results (smallest overall code size) were obtained when the compression scheme was applied to size-optimized code. In the multiple instruction encoding scheme, changing parallel instruction order was found to only slightly improve compression in unoptimized code and does not affect the code compression when it is applied to builds already optimized for size.
Biography:
Montse Ros is a confirmed phd student in the School of ITEE at UQ and is a recipient of the UQ Postgraduate Research Scholarship. This talk will be presented at the International Conference on Compilers, Architecture and Synthesis for Embedded Systems. Her research interests include the application of pure mathematics (particularly coding theory and cryptography) to hardware and software, as well as computer architecture and digital design. Her research topic aims to combine some of these areas.
Contact: Dr Peter Sutton