Abstract : Questions whether numerical simulation is reproducible or not have been reported in several sensitive applications. Numerical reproducibility failure mainly comes from the finite precision of computer arithmetic. Results of floating-point computation depends on the computer arithmetic precision and on the order of arithmetic operations. Massive parallel HPC which merges, for instance, many-core CPU and GPU, clearly modifies these two parameters even from run to run on a given computing platform. How to trust such computed results? This paper presents how three classic approaches in computer arithmetic may provide some first steps towards more numerical reproducibility.
https://hal-lirmm.ccsd.cnrs.fr/lirmm-00872562
Contributeur : Philippe Langlois
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Soumis le : lundi 14 octobre 2013 - 08:24:50
Dernière modification le : vendredi 21 décembre 2018 - 12:00:02
Document(s) archivé(s) le : vendredi 7 avril 2017 - 10:12:54
