Changeset 3141 for Deliverables/D6.46.5/workshops.ltx
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 Apr 12, 2013, 7:23:22 PM (7 years ago)
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Deliverables/D6.46.5/workshops.ltx
r3139 r3141 41 41 In addition to his own technical talk, he took the opportunity to advertise, and solicit interest in, the recently formed COST Action IC1202 Timing Analysis and CostLevel Estimation (TACLe), of which he is Chair. This offers very promising potential for future collaborations and the wider communication of results from \cerco{}. 42 42 43 A common theme emerged from the shared sessions with QAPL, and in particular the invited talk there from prof. Alessandra di Pierro on \emph{probabilistic} timing analysis: the parametrisation of a given timing analysis with respect to different cost \emph{algebras}. In the case of probabilistic analyses, costs are taken with respect to given probability distributions, with \emph{expected} costs being computed. prof. Vartanegra's talk emphasised a radical approach to such analyses, by making assumptions about the processor/cache architecture to yield an essentially deterministicanalysis.43 A common theme emerged from the shared sessions with QAPL, and in particular the invited talk there from prof. Alessandra di Pierro on \emph{probabilistic} timing analysis: the parametrisation of a given timing analysis with respect to different cost \emph{algebras}. In the case of probabilistic analyses, costs are taken with respect to given probability distributions, with \emph{expected} costs being computed. prof. Vartanegra's talk emphasised a radical approach to such analyses, by making assumptions about the processor/cache architecture to yield an essentially predictable analysis. 44 44 45 45 In the deterministic case studied in \cerco{}, we have taken a given, fixed, cost algebra of natural numbers (obtained from Siemens datasheet clock timings) under addition, but already Tranquili's work on \emph{dependent labelling} suggests a move to computing costs in algebras of \emph{functions} (in the case of his analysis of loop unrolling, of cost expressions parametrised with respect to valuations of the loop index variables). The wider implications of such a move are yet to be explored.
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