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Update PhysDeriv CUDA kernel implementation

Issue/feature addressed

This MR tidy-up PhysDeriv CUDA kernels in prevision of future benchmarking tests

Here are a summary of the changes:

  • Tidy-up PhysDeriv CUDA kernel implementation
  • Fuse kernel functions for better efficiency
  • Simplify loops in kernel functions
  • Improved coalesced memory access to global memory
  • Add templated option for shared memory
  • Add 1D indexing version of QP (multilevel) Kernels
  • Interleave data for non-QP kernels

To do (future MRs):

  • Interleave data for non-QP kernels
  • Consider templating nq0, nq1, nq2 parameters
  • Optimizing CUDA grid parameters

Proposed solution



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  • Functions and classes, or changes to them, are documented.
  • [ ] User guide/documentation is updated.
  • [ ] Changelog is updated.
  • [ ] Suitable tests added for new functionality.
  • Contributed code is correctly formatted. (See the contributing guidelines).
  • [ ] License added to any new files.
  • No extraneous files have been added (e.g. compiler output or test data files).
Edited by Jacques Xing

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