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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.5.6] - 2024-10-28

Added

  • Sequential version of gallery functions.

[0.5.5] - 2024-10-07

Added

  • Support for ghost layers of more than a single element in thickness.

[0.5.4] - 2024-08-28

Added

  • Function array_of_tuples.
  • Export statement for local_permutation.
  • Experimental support for block arrays via types BRange, BVector, BMatrix, and BArray.

[0.5.3] - 2024-08-16

Fixed

  • Typo: node_coorinates_unit_cube -> node_coordinates_unit_cube.
  • Bug in nullspace_linear_elasticity.
  • Bug in PVector when working in split format.

Deprecated

  • near_nullspace_linear_elasticity in favor of nullspace_linear_elasticity.

[0.5.2] - 2024-08-13

Added

  • Split format support for PVector.
  • Helper functions to build partitioned sparse matrices and vectors in split format, pvector_from_split_blocks and psparse_from_split_blocks.
  • Gallery function linear_elasticity_fem.
  • Function global_to_owner.

Deprecated

  • OwnAndGhostVectors is replaced by SplitVector.

[0.5.1] - 2024-07-26

Added

  • Function spmv!.

Fixed

  • Performance improvements in sparse matrix-vector multiplication.

[0.5.0] - 2024-07-26

Changed

  • MPIArray and DebugArray are now inmutable for performance reasons.

Fixed

  • Many type instabilities.
  • mul! (and also consistent!, exchange! ) allocation free for MPIArray (with check-bounds=no)

Removed

  • OldPSparseMatrix and related functionality.

Added

  • New method for psparse that accepts a sparse matrix type as first argument.

[0.4.7] - 2024-07-18

Added

  • Functions laplacian_fdm and laplacian_fem to generate distributed sparse matrices from the discretization of the Laplacian operator.

[0.4.6] - 2024-05-25

Fixed

  • Bug in consistent! for sparse matrices.

[0.4.5] - 2024-05-17

Fixed

  • Bug in copy.
  • Bug in sparse matrix-matrix products.
  • Performance improvements in tuple_of_arrays.

Added

  • Function centralize for sparse matrix.
  • multicast for arbitrary types.

[0.4.4] - 2024-02-20

Fixed

  • Bug in psparse.

Added

  • Distributed sparse matrix-matrix multiplication routines.
  • Distributed transposed sparse matrix-vector product.

[0.4.3] - 2024-02-09

Added

  • Function sparse_matrix, which is is equivalent to sparse, but it allows one to pass negative indices (which will be ignored). Useful to handle boundary conditions.

[0.4.2] - 2024-02-07

Added

  • Enhancements in the logic behind the (undocumented) optional arguments in psparse, pvector, and psystem.

[0.4.1] - 2024-02-05

Added

  • Gather/scatter for non isbitstype objects.
  • Function find_local_indices.

[0.4.0] - 2024-01-21

Changed

  • Major refactoring in PSparseMatrix (and in PVector in a lesser extent). The old code is still available (but deprecated), and can be recovered applying this renaming to your code-base:

    • PSparseMatrix -> OldPSparseMatrix
    • psparse! -> old_psparse!
    • pvector! -> old_pvector!
    • trivial_partition -> old_trivial_partition

  • The default parallel sparse matrix format is now split into 4 blocks corresponding to own/ghost columns/rows. The previous "monolithic" storage is not implemented anymore for the new version of PSparseMatrix, but can be implemented in the new setup if needed.

  • emit renamed to multicast. The former name is still available but deprecated.

Added

  • Efficient re-construction of PSparseMatrix and PVector objects.
  • Functions assemble and consistent (allocating versions of assemble! and consistent! with a slightly different treatment of the ghost rows).
  • Function consistent for PSparseMatrix.
  • Functions repartition and repartition! used to change the data partition of PSparseMatrix and PVector objects.
  • Functions psystem and psystem! for generating a system matrix and vector at once.
  • Function trivial_partition.
  • Support for sub-assembled matrices in PSparseMatrix.

[0.3.4] - 2023-09-06

Added

  • Function partition_from_color.
  • Base.copyto! and Base.copy! for PSparseMatrix.

Fixed

  • Bugfix: Base.similar methods for PSparseMatrix not working.

[0.3.3] - 2023-08-09

Added

  • MPI ibarrier-based (supposedly scalable) algorithm to find rcv neighbours in a sparse all-to-all communication graph given the snd neighbors. We left the previous non-scalable algorithm as default (based on gather-scatter) until we have experimental evidence on the relative performance and scalability of the former with respect to the latter and for which core ranges.
  • New kwarg discover_cols=true to the psparse! constructor, which allows the user to skip column index discovery.

Fixed

  • Bugfix: global_length for PRange not working as intended.

[0.3.2] - 2023-05-10

Fixed

  • Performance improvements.

[0.3.1] - 2023-03-17

Fixed

  • Performance improvements in functions tuple_of_arrays and assemble!.

[0.3.0] - 2023-02-01

Changed

This version is a major refactor of the code with improvements in the software abstractions and documentation. Almost all previous functionality should be available, but with a different API.

Previous versions

A changelog is not maintained for older versions than 0.3.0.