Product Line

Functionality List

Contents

• Data Structures
• Linear and Non-Linear Algebra
• PDE Modeling

• Parallel Computing
• Utilities
• Documentation

• Preprocessing
• Postprocessing
• User Interfaces

• Quality Assurance
• Problem Exploration
• Extensibility and Communication

Data Structures

• General multidimensional array templates
• List and set templates
• Optimized numerical vector and matrix formats
• Optimized spatial point representation
• Structured, unstructured and staggered grids
• Scalar and vector fields

Linear and Non-Linear Algebra

• Direct and iterative linear solvers
• Multigrid solvers
• Preconditioners
• Convergence monitors
• Non-linear solvers

PDE Modeling

• Stationary and time-dependent PDEs
• Linear and non-linear PDEs
• Systems of coupled PDEs (multi-physics problems)
• Finite element algorithms
• Mixed finite element algorithms
• Implicit finite difference algorithms
• Explicit finite difference algorithms
• Library of finite elements
• Library of finite difference stencils
• Run time selection of spatial dimension (1, 2 or 3 dimension. General dimension for some algorithms)

Parallel Computing

• Parallelization of linear algebra operations in PDE applications (presentation)

Utilities

• Extended I/O, CPU timing, smart pointers
• Result database handling (SimRes database)
• Scripts and makefiles for project management

Documentation

• Textbook from Springer-Verlag (presentation)
• Complete header file documentation
• Reports and scientific papers (presentation)
• Automatic application manual generation

Preprocessing

• Transfinite mapping, super-element and lattice grid preprocessors
• Tools for integration with GeomPack and Triangle
• Adaptive meshing (presentation)
• Interfaces to external preprocessor formats (presentation)

Postprocessing

• Interfaces to Matlab, Gnuplot, IRIS Explorer, AVS, Vtk and more
• Filters for mapping of SimRes database to visualization tools

User Interfaces

• Menu system interfacing through input file, graphical or command line mode (graphical, an input file)

Quality Assurance

• Tools for automatic regression testing of applications
• Automatic memory handling
• Debugging tools
• Code transformation programs between Diffpack versions

Problem Exploration

• Run time selection of all application and library entities, from simple variables to abstract data-types (illustration)
• Batch experiments by sequences of runs configured by the Menu system (example)
• Automatic report generation in LaTeX, ASCII or HTML (example)

Extensibility and Communication

• Register user defined entities in Diffpack's entity tables for interoperability with Diffpack.
• Interfacing external modules for interoperation with Diffpack (e.g. elements, solvers, simulators, possibly in other languages)
• Compile time input control for running as slave under external processes