ffc team mailing list archive

[Kristian Oelgaard <k.b.oelgaard@xxxxxxxxxx>]

We forgot to mention explicitly that we now rely on UFL as the input language.

Kristian

Quoting Anders Logg <logg@xxxxxxxxx>:

> 0.7.0
>  - Move contents of TODO to: https://blueprints.launchpad.net/ffc
>  - Support for restriction of finite elements to only consider facet dofs
>  - Use quadrature_order from metadata when integrating terms using tensor
> representation
>  - Use loop to reset the entries of the local element tensor
>  - Added new symbolic classes for quadrature optimisation (speed up
> compilation)
>  - Added demos: Biharmonic.ufl, div(grad(v)) term;
>                 ReactionDiffusion.ufl, tuple notation;
>                 MetaData.ufl, how to attach metadata to the measure;
>                 ElementRestriction.ufl, restriction of elements to facets
>  - Tabulate the coordinates of the integration points in the
> tabulate_tensor() function
>  - Change command line option '-f split_implementation' -> '-f split'
>  - Renaming of files and restructuring of the compiler directory
>  - Added option -q rule (--quadrature-rule rule) to specify which rule to use
>    for integration of a given integral. (Can also bet set through the
> metadata
>    through "quadrature_rule"). No rules have yet been implemented, so default
>    is the FIAT rule.
>  - Remove support for old style .form files/format
> 0.6.2 [2009-04-07]
>  - Experimental support for UFL, supporting both .form and .ufl
>  - Moved configuration and construction of python extension module to
> ufc_module
> 0.6.1 [2009-02-18]
>  - Initial work on UFL transition
>  - Minor bug fixes
>  - The version of ufc and swig is included in the form signature
>  - Better system configuration for JIT compiled forms
>  - The JIT compiled python extension module use shared_ptr for all classes
> 0.6.0 [2009-01-05]
>  - Update DOLFIN output format (-l dolfin) for DOLFIN 0.9.0
>  - Cross-platform fixes for test scripts
>  - Minor bug fix for quadrature code generation (forms affected by this bug
> would not be able to compile
>  - Fix bug with output of *.py.
>  - Permit dot product bewteen rectangular matrices (Frobenius norm)
> 0.5.1 [2008-10-20]
>  - New operator skew()
>  - Allow JIT compilation of elements and dof maps
>  - Rewrite JIT compiler to rely on Instant for caching
>  - Display flop count for evaluating the element tensor during compilation
>  - Add arguments language and representation to options dictionary
>  - Fix installation on Windows
>  - Add option -f split_implementation for separate .h and .cpp files
> 0.5.0 [2008-06-23]
>  - Remove default restriction +/- for Constant
>  - Make JIT optimization (-O0 / -O2) optional
>  - Add in-memory cache to speed up JIT compiler for repeated assembly
>  - Allow subdomain integrals without needing full range of integrals
>  - Allow simple subdomain integral specification dx(0), dx(1), ds(0) etc
> 0.4.5 [2008-04-30]
>  - Optimizations in generated quadrature code
>  - Change formatting of floats from %g to %e, fixes problem with too long
> integers
>  - Bug fix for order of values in interpolate_vertex_values, now according to
> UFC
>  - Speed up JIT compiler
>  - Add index ranges to form printing
>  - Throw runtime error in functions not generated
>  - Update DOLFIN format for new location of include files
> 0.4.4 [2008-02-18]
>  - RT, BDM, BDFM and Nedelec now working in 2D and 3D
>  - New element type QuadratureElement
>  - Add support for 1D elements
>  - Add experimental support for new Darcy-Stokes element
>  - Use FIAT transformed spaces instead of mapping in FFC
>  - Updates for UFC 1.1
>  - Implement caching of forms/modules in ~/.ffc/cache for JIT compiler
>  - Add script ffc-clean
>  - New operators lhs() and rhs()
>  - Bug fixes in simplify
>  - Bug fixes for Nedelec and BDFM
>  - Fix bug in mult()
>  - Fix bug with restrictions on exterior facet integrals
>  - Fix bug in grad() for vectors
>  - Add divergence operator for matrices
> 0.4.3 [2007-10-23]
>  - Require FIAT to use UFC reference cells
>  - Fix bug in form simplification
>  - Rename abs --> modulus to avoid conflict with builtin abs
>  - Fix bug in operators invert, abs, sqrt
>  - Fix bug in integral tabulation
>  - Add BDFM and Nedelec elements (nonworking)
>  - Fix bug in JIT compiler
> 0.4.2 [2007-08-31]
>  - Change license from GPL v2 to GPL v3 or later
>  - Add JIT (just-in-time) compiler
>  - Fix bug for constants on interior facets
> 0.4.1 [2007-06-22]
>  - Fix bug in simplification of forms
>  - Optimize removal of unused terms in code formattting
> 0.4.0 [2007-06-20]
>  - Move to UFC interface for code generation
>  - Major rewrite, restructure, cleanup
>  - Add support for Brezzi-Douglas-Marini (BDM) elements
>  - Add support for Raviart-Thomas (RT) elements
>  - Add support for Discontinuous Galerkin (DG) methods
>  - Operators jump() and avg()
>  - Add quadrature compilation mode (experimental)
>  - Simplification of forms
>  - Operators sqrt(), abs() and inverse
>  - Improved Python interface
>  - Add flag -f precision=n
>  - Generate code for basis functions and derivatives
>  - Use Set from set module for Python2.3 compatibility
> 0.3.5 [2006-12-01]
>  - Bug fixes
>  - Move from Numeric to numpy
> 0.3.4 [2006-10-27]
>  - Updates for new DOLFIN mesh library
>  - Add support for evaluation of functionals
>  - Add operator outer() for outer product of vector-valued functions
>  - Enable optimization of linear forms (in addition to bilinear forms)
>  - Remove DOLFIN SWIG format
>  - Fix bug in ffc -v/--version (thanks to Ola Skavhaug)
>  - Consolidate DOLFIN and DOLFIN SWIG formats (patch from Johan Jansson)
>  - Fix bug in optimized compilation (-O) for some forms ("too many values to
> unpack")
> 0.3.3 [2006-09-05]
>  - Fix bug in operator div()
>  - Add operation count (number of multiplications) with -d0
>  - Add hint for printing more informative error messages (flag -d1)
>  - Modify implementation of vertexeval()
>  - Add support for boundary integrals (Garth N. Wells)
> 0.3.2 [2006-04-01]
>  - Add support for FErari optimizations, new flag -O
> 0.3.1 [2006-03-28]
>  - Remove verbose output: silence means success
>  - Generate empty boundary integral eval() to please Intel C++ compiler
>  - New classes TestFunction and TrialFunction
> 0.3.0 [2006-03-01]
>  - Work on manual, document command-line and user-interfaces
>  - Name change: u --> U
>  - Add compilation of elements without form
>  - Add generation of FiniteElementSpec in DOLFIN formats
>  - Fix bugs in raw and XML formats
>  - Fix bug in LaTeX format
>  - Fix path and predefine tokens to enable import in .form file
>  - Report number of entries in reference tensor during compilation
> 0.2.5 [2005-12-28]
>  - Add demo Stabilization.form
>  - Further speedup computation of reference tensor (use ufunc Numeric.add)
> 0.2.4 [2005-12-05]
>  - Report time taken to compute reference tensor
>  - Restructure computation of reference tensor to use less memory.
>    As a side effect, the speed has also been improved.
>  - Update for DOLFIN name change node --> vertex
>  - Update finite element interface for DOLFIN
>  - Check for FIAT bug in discontinuous vector Lagrange elements
>  - Fix signatures for vector-valued elements
> 0.2.3 [2005-11-28]
>  - New fast Numeric/BLAS based algorithm for computing reference tensor
>  - Bug fix: reassign indices for complete subexpressions
>  - Bug fix: operator Function * Integral
>  - Check tensor notation for completeness
>  - Bug fix: mixed elements with more than two function spaces
>  - Don't declare unused coefficients (or gcc will complain)
> 0.2.2 [2005-11-14]
>  - Add command-line argument -v / --version
>  - Add new operator mean() for projection onto piecewise constants
>  - Add support for projections
>  - Bug fix for higher order mixed elements: declaration of edge/face_ordering
>  - Generate code for sub elements of mixed elements
>  - Add new test form: TensorWeighteLaplacian
>  - Add new test form: EnergyNorm
>  - Fix bugs in mult() and vec() (skavhaug)
>  - Reset correct entries of G for interior in BLAS mode
>  - Only assign to entries of G that meet nonzero entries of A in BLAS mode
> 0.2.1 [2005-10-11]
>  - Only generate declarations that are needed according to format
>  - Check for missing options and add missing default options
>  - Simplify usage of FFC as Python module: from ffc import *
>  - Fix bug in division with constants
>  - Generate output for BLAS (with option -f blas)
>  - Add new XML output format
>  - Remove command-line option --license (collect in compiler options -f)
>  - Modify demo Mass.form to use 3:rd order Lagrange on tets
>  - Fix bug in dofmap() for equal order mixed elements
>  - Add compiler option -d debuglevel
>  - Fix Python Numeric bug: vdot --> dot
> 0.2.0 [2005-09-23]
>  - Generate function vertexeval() for evaluation at vertices
>  - Add support for arbitrary mixed elements
>  - Add man page
>  - Work on manual, chapters on form language, quickstart and installation
>  - Handle exceptions gracefully in command-line interface
>  - Use new template fenicsmanual.cls for manual
>  - Add new operators grad, div, rot (curl), D, rank, trace, dot, cross
>  - Factorize common reference tensors from terms with equal signatures
>  - Collect small building blocks for form algebra in common module tokens.py
> 0.1.9 [2005-07-05]
>  - Complete support for general order Lagrange elements on triangles and
> tetrahedra
>  - Compute reordering of dofs on tets correctly
>  - Update manual with ordering of dofs
>  - Break compilation into two phases: build() and write()
>  - Add new output format ASE (Matt Knepley)
>  - Improve python interface to FFC
>  - Remove excessive logging at compilation
>  - Fix bug in raw output format
> 0.1.8 [2005-05-17]
>  - Access data through map in DOLFIN format
>  - Experimental support for computation of coordinate maps
>  - Add first draft of manual
>  - Experimental support for computation of dof maps
>  - Allow specification of the number of components for vector Lagrange
>  - Count the number of zeros dropped
>  - Fix bug in handling command-line arguments
>  - Use module sets instead of built-in set (fix for Python 2.3)
>  - Handle constant indices correctly (bug reported by Garth N. Wells)
> 0.1.7 [2005-05-02]
>  - Write version number to output
>  - Add command-line option for choosing license
>  - Display usage if no input is given
>  - Bug fix for finding correct prefix of file name
>  - Automatically choose name of output file (if not supplied)
>  - Use FIAT tabulation mode for vector-valued elements (speedup a factor 5)
>  - Use FIAT tabulation mode for scalar elements (speedup a factor 1000)
>  - Fig bug in demo elasticity.form (change order of u and v)
>  - Make references to constants const in DOLFIN format
>  - Don't generate code for unused entries of geometry tensor
>  - Update formats to write numeric constants with full precision
> 0.1.6 [2005-03-17]
>  - Add support for mixing multiple different finite elements
>  - Add support for division with constants
>  - Fix index bug (reverse order of multi-indices)
> 0.1.5 [2005-03-14]
>  - Automatically choose the correct quadrature rule for precomputation
>  - Add test program for verification of FIAT quadrature rules
>  - Fix bug for derivative of sum
>  - Improve common interface for debugging: add indentation
>  - Add support for constants
>  - Fix bug for sums of more than one term (make copies of references in
> lists)
>  - Add '_' in naming of geometry tensor (needed for large dimensions)
>  - Add example elasticity.form
>  - Cleanup build_indices()
> 0.1.4-1 [2005-02-07]
>  - Fix version number and remove build directory from tarball
> 0.1.4 [2005-02-04]
>  - Fix bug for systems, seems to work now
>  - Add common interface for debugging
>  - Modify DOLFIN output to initialize functions
>  - Create unique numbers for each function
>  - Use namespaces for DOLFIN output instead of class names
>  - Temporary implementation of dof mapping for vector-valued elements
>  - Make DOLFIN output format put entries into PETSc block
>  - Change name of coefficient data: c%d[%d] -> c[%d][%d]
>  - Change ordering of basis functions (one component at a time)
>  - Add example poissonsystem.form
>  - Modifications for new version of FIAT (FIAT-L)
>    FIAT version 0.1 a factor 5 slower (no memoization)
>    FIAT version 0.1.1 a little faster, only a factor 2 slower
>  - Add setup.py script
> 0.1.3 [2004-12-06]
>  - Fix bug in DOLFIN format (missing value when zero)
>  - Add output of reference tensor to LaTeX format
>  - Make raw output format print data with full precision
>  - Add component diagram
>  - Change order of declaration of basis functions
>  - Add new output format raw
> 0.1.2 [2004-11-17]
>  - Add command-line interface ffc
>  - Add support for functions (coefficients)
>  - Add support for constants
>  - Allow multiple forms (left- and right-hand side) in same file
>  - Add test examples: poisson.form, mass.form, navierstokes.form
>  - Wrap FIAT to create vector-valued finite element spaces
>  - Check ranks of operands
>  - Clean up algebra, add base class Element
>  - Add some documentation (class diagram)
>  - Add support for LaTeX output
> 0.1.1-1 [2004-11-10]
>  - Add missing file declaration.py
> 0.1.1 [2004-11-10]
>  - Make output variable names configurable
>  - Clean up DOLFIN code generation
>  - Post-process form to create reference, geometry, and element tensors
>  - Experimental support for general tensor-valued elements
>  - Clean up and improve index reassignment
>  - Use string formatting for generation of output
>  - Change index ordering to access row-wise
> 0.1.0 [2004-10-22]
>  - First iteration of the FEniCS Form Compiler
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