0.30.0 - 2022-08-22

Added

• Fortran API for Interpolation::execute_adjoint()
• Fortran API for FieldSet::name()
• Fortran API for MeshGenerator::generate(grid,partitioner)
• Pentagon element type
• SphericalHarmonic function
• New interpolation method: ConservativeSphericalPolygonInterpolation
• Support 'variables' option in functionspace::PointCloud::createField

Changed

• Atlas-IO is now standalone project, still embedded but only depending on eckit
• Deprecate Trans naming of 'ifs' or 'trans' in favour of 'ectrans'
• Default StructuredMeshGenerator partitioner is equal_regions instead of trans/ectrans

Fixed

• Fix global numbering HEALPix grid to standard
• Fix NodeColumns remote_index for parallel orca grids
• Fix use of ATLAS_LINALG_DENSE_BACKEND environment variable

0.29.0 - 2022-04-21

Added

• MatchingMeshPartitioner "cubedsphere"
• Interpolator "cubedsphere-bilinear"
• Improvements to Interpolation::Cache
• Add support for rank 2 fields when a nonlinear action is added to the interpolator
• Create Array using ArraySpec only

Changed

• FieldSet::has(...) replaces FieldSet::has_field(...)
• Metadata return value to Interpolation::execute()
• Rename BilinearRemapping to UnstructuredBilinearLonLat

Fixed

• Compatibility with proj version >= 8
• Compatibility with eckit version <= 1.18.5
• Compatibility with GridTools backend and using 64bit idx_t
• Wrongly computed Jacobian::transpose() introduced in 0.28.0
• Fix bug where using ectrans was not enabling adjoint of invtrans
• Avoid segfault when OpenMP tasking is broken, as it is with AppleClang and LLVM libomp

0.28.1 - 2022-03-14

Fixed

• Fix compilation for GNU 7.3

0.28.0 - 2022-03-02

Added

• Assignment of ArrayView from ArrayView
• Grid "regional_variable_resolution" via a new VariableResolutionProjection
• CubedSphereDualMeshGenerator
• VortexRollup function as analytical field for initialising data
• ConvexSphericalPolygon utility class
• Improve Projection::Jacobian
• Initial implementation for bilinear interpolation for unstructured meshes

Changed

• Use new eckit (1.19.0) Sparse and Dense linear algebra API
• General robustness improvements to CubedSphere to using functionspaces with various halos

Fixed

• Workarounds to fix compilation with Fujitsu compiler
• Workarounds to avoid Cray compiler problems with certain flag combinations
• CellColumns::haloExchange for meshes with multiple element types
• Computation of HEALPix mesh remote indices.

0.27.0 - 2021-12-03

Added

• Adjoint interpolation with some restrictions
• Cubed sphere grid partitioner
• Cubed sphere parallel mesh generation
• Cubed sphere function spaces
• Fortran interfaces to Projection methods
• Support discovery of open-source ectrans
• Dense linear Algebra matrix_multiply abstraction

Changed

• Remove etc/atlas/config.yaml because defaults should be in code
• Naming of sparse_matrix_multiply backend 'omp' -> 'openmp'
• Applied clang-format 13.0.0 (all files touched)

0.26.0 - 2021-08-23

Added

• Support for Cubed sphere grids and preliminary support for cubes sphere mesh generation.

Fixed

• Compilation with ALTAS_BITS_LOCAL=64
• Too aggressive optimisation with GNU 11
• Compatibility with CMake 3.20 and NVHPC compilers

0.25.0 - 2021-05-18

Added

• New concept Redistribution to redistribute field on same grid but with different partitioner
• Support for Trans::invtrans_adj() and related methods
• Introduce ~atlas/etc/atlas/config.yaml
• atlas-io with support for encoding/decoding std::array
• atlas-io print support for tiny arrays

Changed

• atlas-io version 0.2
• Move util::SpecRegistry to non-templated grid::SpecRegistry

Fixed

• minor bug fixes

0.24.1 - 2021-04-06

Fixed

• Periodic halo for HEALPix mesh
• General warnings and suggestions by DeepCode bot
• Compilation problems with clang 3.8

0.24.0 - 2021-03-19

Fixed

• Fixed hang in band distribution for L160000x8000 grid
• Fixes to Spectral functionspace and TransIFS regarding vertical levels

Changed

• Requires eckit 1.16

Added

• atlas-io first version, not for operational use
• Spec registry for grids

0.23.0 - 2021-01-19

Fixed

• Structured interpolation method interpolating to area straddling Greenwich.
• Fixes when compiling with ATLAS_BITS_LOCAL=64

Changed

• Possibility to link to alternative open-source version of IFS trans library.

Added

• Caching mechanism for interpolation