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(name, orcid, 
Goz David, ORCID: 0000-0001-9808-2283, INAF-OATs
Tornatore Luca, ORCID: 0000-0003-1751-0130, INAF-OATs
Sara Bertocco, ORCID: 0000-0003-2386-623X, INAF-OATs
Giuliano Taffoni, ORCID: 0000-0002-4211-6816, INAF-OATs
Main Affiliation OA Trieste
Titles Direct N-body code designed for heterogeneous platforms
Series OATS Technical Report
Series Number 223
Publication Year 2018
Resource type text
Language en
abstract  The ExaNeSt H2020 project aims at the design and development of an exascale ready supercomputer with a low energy consumption profile but able to support the most demanding scientific and technical applications. The project will produce a prototype based on hybrid hardware (CPUs+accelerators) implementing a co-design approach where scientific applications requirements are driving the hardware design.
Astrophysical codes are playing a fundamental role to validate the exascale platform.
We present strategies adopted in order to port on heterogeneous platform a state-of-the-art N-body code (called ExaHiGPUs) based on high order Hermite's integration scheme with a direct evaluation of pair-wise particle forces.

Direct N-body code designed for heterogeneous platforms.pdf