The main intention of this book is to give an impression of the state of
the art in energy-aware task-scheduling-related issues for very dynamic
emb- ded real-time processing applications. The material is based on
research at IMEC in this area in the period 1999-2006, with a very
extensive state-- the-art overview. It can be viewed as a follow-up of
the earlier "Modeling, veri?cation and exploration of task-level
concurrency in real-time embedded systems" book [234] that was
published in 1999 based on the task-level m- eling work at IMEC. In
order to deal with the stringent timing requirements, the
cost-sensitivity and the dynamic characteristics of our target domain,
we have again adopted a target architecture style (i. e., heterogeneous
mul- processor) and a systematic methodology to make the exploration and
op- mization of such systems feasible. But this time our focus is mainly
on p- viding practical work ?ow out of the (abstract) general ?ow from
previous book and also the relevant scheduling techniques for each step
of this ?ow. Our approach is very heavily application-driven which is
illustrated by several realistic demonstrators. Moreover, the book
addresses only the steps above the traditional real-time operating
systems (RTOS), which are mainly focused on correct solutions for
dispatching tasks. Our methodology is nearly fully independent of the
implementations in the RTOS so it is va- able for the realization on
those existing embedded systems where legacy applications and underlying
RTOS have been developed.
