NDLI: Damaris/Viz: A nonintrusive, adaptable and user-friendly in situ visualization framework

Content Provider	IEEE Xplore Digital Library
Author	Dorier, M. Sisneros, R. Peterka, T. Antoniu, G. Semeraro, D.
Copyright Year	2013
Description	Author affiliation: INRIA Rennes Bretagne-Atlantique, Rennes, France (Antoniu, G.) \|\| Argonne Nat. Lab., Argonne, IL, USA (Peterka, T.) \|\| Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA (Sisneros, R.; Semeraro, D.) \|\| ENS Cachan Brittany, IRISA Rennes, Rennes, France (Dorier, M.)
Abstract	Reducing the amount of data stored by simulations will be of utmost importance for the next generation of large-scale computing. Accordingly, there is active research to shift analysis and visualization tasks to run in situ, that is, closer to the simulation via the sharing of some resources. This is beneficial as it can avoid the necessity of storing large amounts of data for post-processing. In this paper, we focus on the specific case of in situ visualization where analysis codes are collocated with the simulation's code and run on the same resources. It is important for an in situ technique to require minimum modifications to existing codes, be adaptable, and have a low impact on both run times and resource usage. We accomplish this through the Damaris/Viz framework, which provides in situ visualization support to the Damaris I/O middleware. The use of Damaris as a bridge to existing visualization packages allows us to (1) reduce code moditication to a minimum for existing simulations, (2) gather capabilities of several visualization tools to offer a unified data management interface, (3) use dedicated cores to hide the run time impact of in situ visualization and (4) efficiently use memory through a shared-memory-based communication model. Experiments are conducted on Blue Waters and Grid'5000 to visualize the CM1 atmospheric simulation and the Nek5000 CFD solver.
Starting Page	67
Ending Page	75
File Size	521319
Page Count	9
File Format	PDF
ISBN	9781479916597
DOI	10.1109/LDAV.2013.6675160
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-10-13
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multicore Architectures Dedicated Cores Exascale Computing I/O In Situ Visualization
Content Type	Text
Resource Type	Article

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