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Proceedings Paper

Novel development tool for software pipeline optimization for VLIW-DSPs used in real-time image processing
Author(s): Johannes Fuertler; Konrad J. Mayer; Werner Krattenthaler; Ivan Bajla
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Paper Abstract

Although the hardware platform is often seen as the most important element of real-time imaging systems, software optimization can also provide remarkable reduction of overall computational costs. The recommended code development flow for digital signal processors based on the TMS320C6000(TM) architecture usually involves three phases: development of C code, refinement of C code, and programming linear assembly code. Each step requires a different level of knowledge of processor internals. The developer is not directly involved in the automatic scheduling process. In some cases, however, this may result in unacceptable code performance. A better solution can be achieved by scheduling the assembly code by hand. Unfortunately, scheduling of software pipelines by hand not only requires expert skills but is also time consuming, and moreover, prone to errors. To overcome these drawbacks we have designed an innovative development tool - the Software Pipeline Optimization Tool (SPOT(TM)). The SPOT is based on visualization of the scheduled assembly code by a two-dimensional interactive schedule editor, which is equipped with feedback mechanisms deduced from analysis of data dependencies and resource allocation conflicts. The paper addresses optimization techniques available by the application of the SPOT. Furthermore, the benefit of the SPOT is documented by more than 20 optimized image processing algorithms.

Paper Details

Date Published: 14 April 2003
PDF: 12 pages
Proc. SPIE 5012, Real-Time Imaging VII, (14 April 2003); doi: 10.1117/12.477491
Show Author Affiliations
Johannes Fuertler, ARC Seibersdorf Research GmbH (Austria)
Konrad J. Mayer, ARC Seibersdorf Research GmbH (Austria)
Werner Krattenthaler, ARC Seibersdorf Research GmbH (Austria)
Ivan Bajla, ARC Seibersdorf Research GmbH (Austria)

Published in SPIE Proceedings Vol. 5012:
Real-Time Imaging VII
Nasser Kehtarnavaz; Phillip A. Laplante, Editor(s)

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