========================= CHANGES: PETSc for Python ========================= :Author: Lisandro Dalcin :Contact: dalcinl@gmail.com Release 3.20.0 ============== - Update to PETSc 3.20 release. - Update Cython build, require ``Cython >= 3.0.0``. Release 3.19.0 ============== - Update to PETSc 3.19 release. - Expose ``PetscDevice`` and ``PetscDeviceContext`` API as ``PETSc.Device`` and ``PETSc.DeviceContext`` classes respectively. Release 3.18.0 ============== - Update to PETSc 3.18 release. Release 3.17.0 ============== - Update to PETSc 3.17 release. Release 3.16.0 ============== - Update to PETSc 3.16 release. Release 3.15.0 ============== - Update to PETSc 3.15 release. Release 3.14.1 ============== - Fix build issues after changes in recent PETSc patch releases. - Add various missing types and enums definitions. - Update Cython build, require ``Cython >= 0.24``. Release 3.14.0 ============== - Update to PETSc 3.14 release. Release 3.13.0 ============== - Update to PETSc 3.13 release. Release 3.12.0 ============== - Update to PETSc 3.12 release. Release 3.11.0 ============== - Update to PETSc 3.11 release. Release 3.10.1 ============== - Fix for removal of ``SNESTEST``. - Fix ``Mat`` in-place divide. Release 3.10.0 ============== - Update to PETSc 3.10 release. Release 3.9.1 ============= - Add ``Mat.zeroRowsColumnsLocal()``. - Add ``Mat.getISLocalMat()``. - Add ``Mat.convertISToAIJ()``. Release 3.9.0 ============= - Update to PETSc 3.9 release. Release 3.8.0 ============= - Update to PETSc 3.8 release. Release 3.7.0 ============= - Update to PETSc 3.7 release. Release 3.6.0 ============= - Update to PETSc 3.6 release. Release 3.5.1 ============= - Add ``Log.{begin|view|destroy}()``. - Add ``Mat.SOR()`` and ``Mat.SORType``. - Add ``DMPlex.createCoarsePointIS()``. - Add ``LGMap.createSF()``. - Add ``SNES.getVIInactiveSet()``. - Add ``Vec.isaxpy()``. - Add ``PC.setReusePreconditioner()``. - Return correct type in ``DM.getCoordinateDM()``. - Fix SWIG wrappers to handle 64bit ``PetscInt``. - Fix linker flags for Python from Fink. Release 3.5 =========== - Update to PETSc 3.5 release. Release 3.4 =========== - Update to PETSc 3.4 release. - Add support for ``DMComposite`` and ``DMPlex``. - Change ``Mat.getSizes()`` to return ``((m,M),(n,N))``. Release 3.3.1 ============= - Fix ``Options.getAll()`` mishandling values with negative numbers. - Minor backward compatibility fix for PETSc 3.2 . - Minor bugfix for TSPYTHON subtype. Release 3.3 =========== - Update to PETSc 3.3 release. - Change ``Vec.getLocalForm()`` to ``Vec.localForm()`` for use with context manager and add ``Vec.setMPIGhost()``. - Add ``AO.createMemoryScalable()`` and ``LGMap.block()`` / ``LGMap.unblock()`` - Add ``Object.handle`` property (C pointer as a Python integer). Can be used with ``ctypes`` to pass a PETSc handle. - Add ``Comm.tompi4py()`` to get a ``mpi4py`` communicator instance. Release 1.2 =========== - Update to PETSc 3.2 release. - Add new ``DM`` class , make ``DA`` inherit from ``DM``. - Better support for inplace LU/ILU and Cholesky/ICC factorization and factor PC subtypes. - Now the ``Mat``/``PC``/``KSP``/``SNES``/``TS`` Python subtypes are implemented with Cython. - Better interaction between Python garbage collector and PETSc objects. - Support for PEP 3118 and legacy Python's buffer interface. Release 1.1.2 ============= This is a new-features and bug-fix release. - Add support for copying and computing complements in ``IS`` (``IS.copy()`` and ``IS.complement()``). - Add support for coarsening in ``DA`` (``DA.coarsen()``). - Support for shallow copy and deep copy operations (use ``copy.copy`` and ``copy.deepcopy``). Deep copy is only supported for a bunch of types (``IS``, ``Scatter``, ``Vec``, ``Mat``) - Support for ``pip install petsc4py`` to download and install PETSc. Release 1.1.1 ============= This is a new-features and bug-fix release. - Support for setting PETSC_COMM_WORLD before PETSc initialization. - Support for coordinates, refinement and interpolation in DA. Many thanks to Blaise Bourdin. - Workaround build failures when PETSc is built with *mpiuni*. - Workaround GIL-related APIs for non-threaded Python builds. Release 1.1 =========== - Update for API cleanups, changes, and new calls in PETSc 3.1 and some other missing features. - Add support for Jed Brown's THETA an GL timestepper implementations. - Fix the annoying issues related to Open MPI shared libraries dependencies and Python dynamic loading. - Many minor bug-fixes. Many thanks to Ethan Coon, Dmitry Karpeev, Juha Jaykka, and Michele De Stefano. Release 1.0.3 ============= This is a bug-fix release. - Added a quick fix to solve build issues. The macro __SDIR__ is no longer passed to the compiler in the command line. Release 1.0.2 ============= This is a new-features and bug-fix release. - Now ``petsc4py`` works against core PETSc built with complex scalars. - Added support for PETSc logging features like stages, classes and events. Stages and events support the context manager interface (``with`` statement). - Documentation generated with Epydoc and Sphinx is now included in the release tarball. - Removed enumeration-like classes from the ``petsc4py.PETSc`` module namespace. For example, now you have to use ``PETSc.KSP.Type`` instead of ``PETSc.KSPType``. - The ``PETSc.IS`` to ``numpy.ndarray`` conversion now works for stride and block index sets. - Implemented a more robust import machinery for multi-arch ``petsc4py`` installations. Now a wrong value in the ``PETSC_ARCH`` environmental variable emit a warning (instead of failing) at import time. - The unittest-based testsuite now can run under ``nose`` with its default options. - Removed the dependency on ``numpy.distutils``, just use core Python ``distutils``. Release 1.0.1 ============= This is a bug-fix release. Compile Cython-generated C sources with ``-Wwrite-strings`` removed, as this flag (inherited from PETSc) made GCC emit a lot of (harmless but annoying) warnings about conversion of string literals to non-const char pointers. Release 1.0.0 ============= This is the fist release of the all-new, Cython-based, implementation of *PETSc for Python*.