2009 IEEE Computer Society Annual Symposium on VLSI

Format:

Book

Author/Creator:

IEEE Computer Society Symposium on VLSI, author.

Contributor:

IEEE Staff, Contributor.

Language:

English

Subjects (All):

System design--Congresses.

System design.

Physical Description:

1 online resource

Place of Publication:

[Place of publication not identified] IEEE 2009

Language Note:

English

Summary:

Scratchpad memories (SPMs) are promising for energy-efficient embedded systems. Most optimizing techniques for mapping data and code elements to SPMs assume the availability of source code. However, embedded software development has to cope with legacy code, third-party software, and IP-protected applications for which only the binaries are available. The few techniques that directly handle binaries operate on executable files and are limited to either code or data. This work proposes a new technique that addresses both data and code allocation into SPMs. Since it operates directly on binaries, the technique allows library elements to be eligible for SPM mapping. It consists of three main engines: a profiler, a mapper and a patcher. The patcher was designed to operate upon relocatable object binaries so as to overcome the inefficiency of bookkeeping SPM relocations on executable binaries. As compared to code-only SPM mapping, an average energy saving of 15% was obtained for a varied set of benchmark programs and memory configurations. Savings around 47% were reached for the two programs with higher static data content. The average patching time was 0.23s on a quad-core workstation.

Notes:

Bibliographic Level Mode of Issuance: Monograph

ISBN:

9781509074792

1509074791

9780769536842

0769536840