Developing MiniApps on Modern Platforms Using Multiple Programming Models

We have developed a set of reduced, proxy applications ("MiniApps") based on large-scale application codes supported at the Oak Ridge Leadership Computing Facility (OLCF). The MiniApps are designed to encapsulate the details of the most important (i.e. the most time-consuming and/or unique...

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Bibliographic Details
Main Authors: Messer, O.E.B., D'Azevedo, E., Hill, J., Joubert, W., Laosooksathit, S., Tharrington, A.
Format: Conference Proceeding
Language:English
Subjects:
Computer architecture
Graphics processing units
high-performance computing
Kinetic theory
Linear systems
performance modeling
Production
Scalability
Online Access:Request full text
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Summary:We have developed a set of reduced, proxy applications ("MiniApps") based on large-scale application codes supported at the Oak Ridge Leadership Computing Facility (OLCF). The MiniApps are designed to encapsulate the details of the most important (i.e. the most time-consuming and/or unique) facets of the applications that run in production mode on the OLCF. In each case, we have produced or plan to produce individual versions of the MiniApps using different specific programming models (e.g., OpenACC, CUDA, OpenMP). We describe some of our initial observations regarding these different implementations along with estimates of how closely the MiniApps track the actual performance characteristics (in particular, the overall scalability) of the large-scale applications from which they are derived.
ISSN:1552-5244
2168-9253
DOI:10.1109/CLUSTER.2015.130