Kokkos 4.5 Release Briefing

The Kokkos Team is inviting you to the Kokkos 4.5 release briefing.

The briefing will be held online on the 10th of December, 11 AM EST / 9 AM MST / 5 PM CET and cover updates on the Kokkos community and changes in Kokkos from 4.4.

The full change log can be found at https://github.com/kokkos/kokkos/blob/4.5.00/CHANGELOG.md#4500 and https://github.com/kokkos/kokkos-kernels/blob/4.5.00/CHANGELOG.md#4500 respectively.

Community Updates

• Kokkos is now officially a HPSF Established project
• Kokkos User group Meeting 2025 in conjunction with HPSF Conference
• Kokkos 5.0 release plan (C++ standard, interface updates and deprecations)

Kokkos Core Changes:

• SequentialHostInit view allocation property
• Support building Kokkos with Run-Time Type Information (RTTI) disabled
• Support of new macros for relocatable device code (needed for SYCL)
• Support unified memory architectures (APU, e.g. NVIDIA Grace Hopper, AMD Phoenix)
• Move SYCL out of the Experimental namespace
• Graphs enhancements
• Revert default memory allocation on CUDA to synchronous
• Occupation tuning for CUDA
• Deprecations in preparation for 5.0

Kokkos Kernels Changes:

• New batched dense BLAS functions
• Improved support for MAGMA TPL
• Improved convergence in ODE solver
• Deprecations in preparation for 5.0 release