Surrogate Applications for Early Design Stage Multicore Contention Modeling

Fernández, Gabriel; Abella, Jaume; Bernat, Guillem; Cazorla, Francisco J.

doi:10.1109/tetc.2018.2852760

Cited by 2 publications

(3 citation statements)

References 12 publications

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“…the Mediabench). While no particular figure has been reported for the required accuracy in timing predictions during early design stages, in the context of multicores, it has been reported that the impact of contention in execution time can be as high as 20x for some kernels and as high as 5.5x for some benchmarks [3]. These are the reference values in this work to assess accuracy.…”

Section: Methodsmentioning

confidence: 93%

“…This relegates assessing timing constraints to late-design phases when potential violations of applications' deadlines are costly to handle, potentially jeopardizing the whole design and product's time to market. Surrogate Applications (SurApp) [3] offer a path to attack this challenge. A SurApp mimics the activities generated by the real (target) application on hardware shared resources (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…While [3] provides an automatic framework to generate SurApps, it has not been validated in any real board yet, but just on a simulation environment. We cover this gap by making the first implementation of the SurApp approach in a real setup.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Multicore Early Design Stage Guaranteed Performance Estimates for the Space Domain

Fernandez

Fernández

Abella

et al. 2019

2019 Design, Automation &Amp; Test in Europe Conference &Amp; Exhibition (DATE)

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The ability to produce early guaranteed performance (worst-case execution time) estimates for multicores, i.e. before software from different providers gets integrated onto the same critical system, is pivotal. This helps reducing latelydetected costly-to-handle timing violations. An existing methodology creates 'copy' (surrogate) applications from the execution in isolation of each target application. Surrogate applications can be used to upperbound multicore contention delay, and hence WCET estimates in multicores. However, this methodology has only been shown to work on a simulation environment. In this paper we show the work we have carried out to adapt this technology to a real multicore processor for the space domain.

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Section: Methodsmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%