| Autor: |
Simmendinger, Christian, Iakymchuk, Roman, Cebamanos, Luis, Akhmetova, Dana, Bartsch, Valeria, Rotaru, Tiberiu, Rahn, Mirko, Laure, Erwin, Markidis, Stefano, Mencagli, Gabriele, França, Felipe MG, Bentes, Cristiana Barbosa, Justen Marzulo, Leandro Augusto, Lima Pilla, Mauricio, Wyrzykowski, Roman, Deelman, Ewa |
| Předmět: |
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| Zdroj: |
International Journal of High Performance Computing Applications; May2019, Vol. 33 Issue 3, p554-568, 15p |
| Abstrakt: |
One of the main hurdles of partitioned global address space (PGAS) approaches is the dominance of message passing interface (MPI), which as a de facto standard appears in the code basis of many applications. To take advantage of the PGAS APIs like global address space programming interface (GASPI) without a major change in the code basis, interoperability between MPI and PGAS approaches needs to be ensured. In this article, we consider an interoperable GASPI/MPI implementation for the communication/performance crucial parts of the Ludwig and iPIC3D applications. To address the discovered performance limitations, we develop a novel strategy for significantly improved performance and interoperability between both APIs by leveraging GASPI shared windows and shared notifications. First results with a corresponding implementation in the MiniGhost proxy application and the Allreduce collective operation demonstrate the viability of this approach. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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