Nek5000/nekRS: v23.0

What is new? Lagrangian phase model (one-way coupling) Overset grids (neknek) Particle tracking Single source udf+oudf Device support BoomerAMG Improved runtime statistics 4th-kind Chebyshev smoothers Configureable time averaging Extrapolation initialGuess method Scaleable JIT compilation Real gas support for lowMach More examples Various bug fixes Good to know [udf] Changes in include files do not trigger a rebuild automatically [udf] Plugins kernels will be loaded automatically (call in UDF_LoadKernels no longer required) Breaking Changes [nrsconfig] Ensure env-vars CC, CXX and FC point to the correct MPI compiler wrappers (see README.md for an example) [udf] Plugin header files need to be included explicitly [udf] Rename bc->wrk => bc->usrwrk [udf] Update to new API of lowMach plugin (see lowMach example) Time step was added to nekRS::outfld(..., int step, ...) [par] Use pMGSchedule instead of pMultigridCoarsening (see help for more details) [par] Rename writeControl value runTime => simulationTime [par] Remove multigrid qualifier coarse [par] Remove SEMFEM solver specification from key preconditioner, use semfemSolver instead [par] Replace stressFormulation = true by equation = navierStokes+variableViscosity [par] Replace bcType fixedValue by codedFixedValue [par] Replace elasticity by pcg+block for mesh solver Use occa::memory mesh_t objects for vgeo, cubvgeo, ggeom, sgeom, LMM, invLMM (no longer mirrored on host) All boundaryIDs need to be assigned in boundaryTypeMap (use none for an internal boundary) Known Bugs / Restrictions Code is not fully optimized on CPUs in general and Intel GPUs 485 729 258 Thanks to our Contributors @neil-lindquist, @kris-rowe, @pwang234, @nandu90, @yhaomin2007 We are grateful to all who added new features, filed issues or helped resolve them, asked and answered questions, and were part of inspiring discussions