Shallow Water Waves on a Deep Technology Stack: Accelerating a Finite Volume Tsunami Model Using Reconfigurable Hardware in Invasive Computing

Pöppl, Alexander; Damschen, Marvin; Schmaus, Florian; Fried, Andreas; Mohr, Manuel; Blankertz, Matthias; Bauer, Lars; Henkel, Jörg; Schröder-Preikschat, Wolfgang; Bäder, Michael

doi:10.1007/978-3-319-75178-8_54

Cited by 2 publications

(1 citation statement)

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“…In [13] and [14], we showed that this approach can be used for applications in HPC as well, by implementing a tsunami simulation proxy application, SWE-X10. SWE-X10 uses actors for communication across cores as well as shared memory domains and has been shown to work on the invasive hardware platform [15] as well as on HPC systems [14]. The PGAS features of X10 enable a straightforward implementation of the actor communication scheme, as the language enables an implicit transfer of arbitrary objects between ranks, and global pointers make it easy to track the relationships between the different actors.…”

Section: Motivation and Related Workmentioning

confidence: 99%

A UPC++ Actor Library and Its Evaluation On a Shallow Water Proxy Application

Pppl

Baden

Bäder

2019

2019 IEEE/ACM Parallel Applications Workshop, Alternatives to MPI (PAW-ATM)

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Programmability is one of the key challenges of Exascale Computing. Using the actor model for distributed computations may be one solution. The actor model separates computation from communication while still enabling their overlap. Each actor possesses specified communication endpoints to publish and receive information. Computations are undertaken based on the data available on these channels. We present a library that implements this programming model using UPC++, a PGAS library, and evaluate three different parallelization strategies, one based on rank-sequential execution, one based on multiple threads in a rank, and one based on OpenMP tasks. In an evaluation of our library using shallow water proxy applications, our solution compares favorably against an earlier implementation based on X10, and a BSP-based approach.

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