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Damaris: Addressing Performance Variability in Data Management for Post-Petascale Simulations

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Academic year: 2021

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Fig. 1: Variability across processes and across I/O phases in the IOR benchmark using a file-per-process approach on Grid’5000’s Rennes site [Grid’5000 2015], with a PVFS2 [Carns et al
Fig. 2: Two approaches to gain insight from large-scale simulations: (a) the traditional approach of storing data in a parallel file system and reading it offline, (b) the new trend of coupling simulation and  visualiza-tion.
Fig. 3: Software architecture of the implementation of Damaris.
Fig. 4: Semantics of the three functions: (a) At iteration n, a segment is allocated for a given variable through damaris alloc, the simulation holds it
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