TY - GEN
T1 - Adaptive mapping to resource availability for dynamic wavelet-based applications
AU - Ferentinos, Vissarion
AU - Geelen, Bert
AU - Catthoor, Francky
AU - Lafruit, Gauthier
AU - Stouraitis, Thanos
AU - Lauwereins, Rudy
AU - Verkest, Diederik
PY - 2007
Y1 - 2007
N2 - Platforms have to cope with unpredictably varying system resource requirements, because of inter-task level dynamism. To deal with this, they have to be at least partially reconfigurable. It is then important for applications to optimally exploit the memory hierarchy under varying memory availability. Moreover, in the case of intra-task dynamism, additional unpredictability is inserted and the exploration of the optimal memory hierarchy depends on data dependent application behavior. This paper presents a mapping strategy for a wavelet-based video application: depending on the encountered resource availability, switching to different memory optimized instantiations (i.e. localizations) of the application offers up to 25% energy gains in memory accesses, for a representative test sequence. We observe that it is possible to exploit the input motion characteristics in detail (that reflect the intra-task dynamism) by enabling motion-triggered switching, and further increase the achieved gains.
AB - Platforms have to cope with unpredictably varying system resource requirements, because of inter-task level dynamism. To deal with this, they have to be at least partially reconfigurable. It is then important for applications to optimally exploit the memory hierarchy under varying memory availability. Moreover, in the case of intra-task dynamism, additional unpredictability is inserted and the exploration of the optimal memory hierarchy depends on data dependent application behavior. This paper presents a mapping strategy for a wavelet-based video application: depending on the encountered resource availability, switching to different memory optimized instantiations (i.e. localizations) of the application offers up to 25% energy gains in memory accesses, for a representative test sequence. We observe that it is possible to exploit the input motion characteristics in detail (that reflect the intra-task dynamism) by enabling motion-triggered switching, and further increase the achieved gains.
UR - http://www.scopus.com/inward/record.url?scp=47849083264&partnerID=8YFLogxK
U2 - 10.1109/ESTMED.2007.4375802
DO - 10.1109/ESTMED.2007.4375802
M3 - Conference contribution
AN - SCOPUS:47849083264
SN - 9781424416547
T3 - Proceedings of the 2007 IEEE/ACM/IFIP Workshop on Embedded Systems for Real-Time Multimedia, ESTIMedia 2007
SP - 53
EP - 58
BT - Proceedings of the 2007 IEEE/ACM/IFIP Workshop on Embedded Systems for Real-Time Multimedia, ESTIMedia 2007
T2 - 2007 5th Workshop on Embedded Systems for Real-Time Multimedia, ESTIMedia 2007
Y2 - 4 October 2007 through 5 October 2007
ER -