HPCG benchmarks

These are based upon the HPCG Conjugate Gradient solver benchmark. At the time of writing, there are three benchmarks in the suite: the original implementation, one which solves the same problem with a hard-coded stencil, and one which solves a different problem with an LFRic stencil and data.

Usage

From the top-level directory of the repository, you can run the benchmarks with

reframe -c benchmarks/apps/hpcg -r --performance-report

You can use the -n/--name argument to pick HPCG_Original / HPCG_Stencil / HPCG_LFRic to select a particular benchmark. Alternatively, if you want to compare the two implementations of the 27 point stencil problem (Original and Stencil), you can filter by tag -t 27pt_stencil.

This app is currently intended to be parallelized with MPI, and it is recommended to use the --system argument to pick up the appropriate hardware details, as well as Spack libraries.