0.7.1 - Handle setting quadrature degree when it is set to None in UFL form - Added demo: HyperElasticity.ufl 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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