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- W2303352020 abstract "Publisher Summary This chapter describes the performance prediction of hybrid OpenMP/MPI code. After a brief overview of the heterogeneous system simulation environment (HESSE) simulation environment, the problem of the tracing and of the simulation of an OpenMP/MPI application is dealt with. HESSE is a simulation tool that can reproduce or predict the performance behavior of a (possibly heterogeneous) distributed system for a given application, under different computing and network load conditions. The distinctive feature of HESSE is the adoption of a compositional modeling approach. Distributed heterogeneous systems (DHS) are modeled as a set of interconnected components; each simulation component reproduces the performance behavior of a section of the complete system at a given level of detail. Support components are also provided, to manage simulation-support features, such as statistical validation and simulation restart. System modeling is thus performed primarily at the logical architecture level. A case study based on a parallel N-body code is also discussed. The small errors between the performance predicted and measured on a real cluster show the effectiveness of the approach adopted for the simulation of OpenMP code." @default.
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- W2303352020 date "2004-01-01" @default.
- W2303352020 modified "2023-09-27" @default.
- W2303352020 title "Performance simulation of a hybrid openMP/MPI application with HeSSE" @default.
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- W2303352020 doi "https://doi.org/10.1016/s0927-5452(04)80098-4" @default.
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