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CHANGELOG.md

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Changelog

Develop

  • Added hdf5 support for probes and added hdf5 I/O helper routines

  • Added the Richardson wall model.

  • Added the data_streamer simulation component, allowing data streaming

  • Added the variable NEKO_VARNAME_LEN in common/utils.f90 to set a fixed size for name attributes in e.g. field_t and vector_t.

  • Added the field_subsampler simulation component, allowing sampling of fields at a different polynomial order and with masking by point_zones.

  • Basic implementation of an overset interface boundary condition is added

  • Modify field_writer and probes to by default output in case.output_directory

  • Added MOST wall model and added diagnostics for the wall models.

  • Added the data_streamer simulation component, allowing data streaming with ADIOS2.

  • Fixed a bug (mu_msk) in device_calc_force_array in force_torque.f90.

  • Added MOST wall model and added diagnostics for the wall models.

  • Added ALE framework.

  • Added masked I/O capabilities for the field_writer via the optional point_zone JSON keyword.

  • Added the user-defined Neumann boundary conditions for the scalar solver.

  • BREAKING Changed the user-defined scalar Dirichlet boundary conditions keyword from user to user_dirichlet.

  • Add possibility to create mesh and dofmap objects from masked entries.

  • Enabled 1D stats files in csv format as a possible input to average_fields_in_time.

  • Added the possibility to configure interpolation parameters for probes.

  • BREAKING Changed the user interface of fluid/scalar initial condition to read interpolation parameters from the interpolation JSON subdict instead of individual parameters.

  • Added public variables GLOBAL_INTERP_PAD and GLOBAL_INTERP_TOL in global_interpolation as default values for tolerance and padding parameters.

  • Added the possibility to initialize global_interpolation from a JSON subdict.

  • Added the json_get_subdict_or_empty which seeks a JSON subdict and returns an empty object if not found.

  • If the "field" is provided for scalar_stats in the case file, append this name to the scalar_stats registry prefix and the default output filename.

  • Added a script to add new unit tests under contrib/add_unit_test. Added templates for serial and parallel unit tests.

  • Added optional log output from the flow_rate_force, controlled by the log parameter.

  • Increased precision of the time value in the log.

  • Added a script to add new unit tests under contrib/add_unit_test. The same script can add a .pf file to an existing suite.

  • Bugfix: Fixed a bug in the unmap subroutine, where the device pointer was used to check if the field was mapped, which lead to a crash when trying to unmap an array that was not associated with a device. Correctly does nothing now.

  • Added an AI policy to the contribution guidelines.

  • Added simple support for VTKHDF. For now it can be used for fluid outputs. Simple restarts are supported with fixed mesh and MPI configuration. The VTKHDF output format is still experimental and will change in the future.

  • Added templates for serial and parallel unit tests.

  • Added code review instructions for LLMs in a copilot-friendly location.

  • Improved pixi installation. Added support to create a Python environment inside the pixi shell. Added support to choose real precision.

  • Added the Deardorff SGS model.

  • Added the optional expected_size argument to json_get_*_array to throw an error if the parsed array size is incorrect.

  • Fixed checkpoint JSON parameter parsing and their documentation. The output_checkpoints parameter no longer has a default value.

  • Added runtime statistics for subgrid-scale contribution to the anisotropic part of the residual stresses.

  • Introduced import_fields: a subroutine to read and import fld data, with interpolation capabilities.

  • Added vector_list_t and name to vector_t.

  • Rework hash table iterators, significantly faster (O(tsize) => O(entries)

  • Remove redundant directory in site-packages when installing pyneko

  • Added options to used masked parts of the domain when performing interpolation

  • Update the simcomp wrappers to better handle allocation and deallocation.

  • Added a factory subroutine for scalar schemes, allowing for more flexible creation of scalar scheme objects based on JSON input.

  • Fixed a bug in the scalar scheme handler where polymorphic objects were not being handled correctly.

  • Support for user-defined scalar schemes are now added.

  • Added source term for direct forcing from a field defined in the registry.

  • Add description of the fld file format to the documentation.

  • Added possibility to assign names to boundary conditions in the case file. The bc_list_t now supports item retrieval by name or zone_index.

  • Runtime statistics fields are now retrievable from the registry, for both fluid_stats and user_stats. The naming convention of the fields in the registry is name_of_simcomp + "/mean_" + name_of_field.

  • Updated field types with a wrapper and ensure lifetime management of field data in field lists and arrays.

  • Updated Developer Patterns documentation with new information on how to manage pointers and lists of complex objects.

  • Added cache cleanup job for CI workflows upon PR closure.

  • Updated compiler check workflows to run on release branches and master.

  • Removed commented-out workflow sections.

  • Added compiler support section to README.

  • Restrict the setuptools version to be less than 81, due to a breaking change in that version for flinter.

  • Added the full_elements option to point_zones. Allows including all points in an element in the mask.

  • BREAKING The sign of the Boussinesq source term is fixed such that the input gravity vector could be prescribed correctly.

  • Added an option for writing the mesh in every output field file.

  • BREAKING All simcomps now have a name keyword in the case file. A default name is assigned, but all names must be unique. If you have two or more simcomps of the same type, you must manually provide each a unique name.

  • BREAKING JSON case file parsing now uses strict type checking. This means, for example, that providing an integer like 2 for a real entry will throw an error, one should set 2.0. Descriptive error and warning messages are issued.

  • Added the possibilty to provide global constants in the case file under the constants object.

    • Added real scalar entries to registry_t.
    • Added neko_const_registry to store global constants defined in the case file.
    • Added submodule case_file_utils to json_utils for extracting JSON entry values from either the JSON itself or the neko_const_regitry.

  • Introduce deprecation warning functionality. Allowing marking functions and classes as deprecated, with optional custom messages.

  • Add missing free operators for output_t class.

  • Add min/max operations when applying strong boundary conditions for the scalar, mimicing the procedure for the fluid. Needed with meshes where an element touches the boundary with only an edge.

  • Fix user scalar boundary conditions only being applied once in the beginning of the simulation.

  • Fix mean_field_output_t initialization, causing start_time to not be respected by the user_stats simulation component.

  • Fix field assignment operator to correctly handle name assignment only when the current field's name is empty. Caused HDF5 bugs when writing fields with pre-existing names.

  • Fix cyclic boundary rotation device bug, which tried to launch kernels with zero threads for ranks not containing cyclic boundaries.

  • Change default parameters for tamg and phmg to be less expensive.

Deprecated features

  • operator::ortho calls with implicit device arrays are deprecated. Please use device_ortho instead.