Title
System-level memory management based on statistical variability compensation for frame-based applications
Abstract
Process variability and dynamic domains increase the uncertainty of embedded systems and force designers to apply pessimistic designs, which become unnecessarily conservative and have a tremendous impact on both performance and energy consumption. In this context, developing uncertainty-aware design methodologies that take both variation at platform and at application level into account becomes a must. These methodologies should mitigate the effects derived from uncertainty, avoiding worst-case assumptions. In this article we propose a comprehensive methodology to tackle two forms of uncertainty: (1) process variation on the memory system, (2) application dynamism. A statistical model has been developed to deal with variability derived from fabrication process, whereas system scenarios are selected to cope with dynamic domains. Both sources of uncertainty are firstly tackled in combination at design time, to be refined later, at setup. As a result, at run time the platform can be successfully adapted to the current application behaviour as well as the current variations. Our simulations show that this methodology provides significant energy savings while still meeting strict timing constraints.
Year
DOI
Venue
2013
10.1145/2536747.2536757
ACM Trans. Embedded Comput. Syst.
Keywords
Field
DocType
process variation,fabrication process,comprehensive methodology,application dynamism,frame-based application,current variation,process variability,statistical variability compensation,application level,system-level memory management,design time,dynamic domain,current application behaviour
Dynamism,Computer science,Statistical variability,Real-time computing,Memory management,Frame based,Process variation,Statistical model,Energy consumption,System level
Journal
Volume
Issue
ISSN
13
1s
1539-9087
Citations 
PageRank 
References 
1
0.36
19
Authors
5
Name
Order
Citations
PageRank
Concepción Sanz161.13
José Ignacio Gómez21376.77
Christian Tenllado331721.41
Manuel Prieto434931.23
Francky Catthoor53932423.30