Experiences with implementing Kokkos’ SYCL backend

Conference · Mon Apr 01 00:00:00 EDT 2024

DOI:https://doi.org/10.1145/3648115.3648118· OSTI ID:2336667

Arndt, Daniel ^[1]; Lebrun-Grandie, Damien ^[1]; Trott, Christian ^[2]

---

1. ORNL
2. Sandia National Laboratories (SNL)

With the recent diversification of the hardware landscape in the high-performance computing community, performance-portability solutions are becoming more and more important. One of the most popular choices is Kokkos. In this paper, we describe how Kokkos maps to SYCL 2020, how SYCL had to evolve to enable a full Kokkos implementation, and where we still rely on extensions provided by Intel’s oneAPI implementation. Furthermore, we describe how applications can use Kokkos and its ecosystem to already explore upcoming C++ features also when using the SYCL backend. Finally, we are providing some performance benchmarks comparing native SYCL and Kokkos and also discuss hierarchical parallelism in the SYCL 2020 interface.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE; USDOE Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 2336667
• Country of Publication: United States
• Language: English