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PRODID:-//Microsoft Corporation//Outlook MIMEDIR//EN
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DTSTART:20151117T231500Z
DTEND:20151118T010000Z
LOCATION:Level 4 - Lobby
DESCRIPTION;ENCODING=QUOTED-PRINTABLE:ABSTRACT: In this research project we have taken the TeaLeaf ’mini-app’ and developed several ports using a mixture of new and mature parallel programming models. Performance data collected on modern HPC devices demonstrates the capacity for each to achieve portable performance. =0A=0AWe have discovered that RAJA is a promising model with an intuitive development approach, that exhibits good performance on CPUs, but currently lack functional portability. Kokkos requires more up-front development, but presents a highly competitive option for performance portability on CPUs and NVIDIA GPUs. The results show that Kokkos can exhibit performance to within 5% of OpenMP and hand-optimised CUDA for some solvers, and collaboration with Sandia demonstrated that good performance could be achieved on Intel Xeon Phi devices at the expense of GPU performance.=0A=0AOur poster presents highlights of the results collected during this research to enable open discussion about the benefits of each model for application developers.
SUMMARY:A Performance Evaluation of Kokkos and RAJA using the TeaLeaf Mini-App
PRIORITY:3
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