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cs.DC2021
Strong Scaling of OpenACC enabled Nek5000 on several GPU based HPC systems
Jonathan Vincent, Jing Gong, Martin Karp +11
We present new results on the strong parallel scaling for the OpenACC-accelerated implementation of the high-order spectral element fluid dynamics solver Nek5000. The test case con…
cs.DC2020★ 2 cited
Optimised allgatherv, reduce_scatter and allreduce communication in message-passing systems
Andreas Jocksch, Noe Ohana, Emmanuel Lanti +2
Collective communications, namely the patterns allgatherv, reduce_scatter, and allreduce in message-passing systems are optimised based on measurements at the installation time of…