HICAL

HICAL

Access

Software
      current version:   1.3
      public distribution:   yes
           what is available:   source
           and where:   available from the authors upon request
           mirror sites:   ---
Author/Maintainer
      name:   Andreas Beckers, Thomas Worsch, et al.
      WWW home page:   http://liinwww.ira.uka.de/~worsch/
      email:   mailto:worsch@ira.uka.de
General information about the software
      WWW information:    ---
      Literature:   Beckers:1995:AHP

Hardware and software requirements

Environment 1
      compiler runs on:   Unix workstations with C compiler
      simulation runs on:   Unix workstations with X11 and Tcl/Tk

Standard CA

Lattice
      lattice structure:   one- and two-dimensional Euclidean grids
      lattice size:   rectangles of arbitrary size
      boundary conditions:   fixed, toroidal (can be chosen independently for both dimensions)
Neighborhoods
      limitations:   none
      notation:   vectors; they can be given names
      grouping constructs:   yes
Set of states
      max size:   no limit
      structure:   yes
           how:   registers
           data types:   enums; ints with a definable number of significant bits; 32 bits floats
Local rule
      limitations:   none

Extensions

Local rule
      probabilistic rules:   yes
      block rules:   no
      moving objects:   no
Global rule
      asynchronous CA:   no
Temporal inhomogeneity:    (yes)
      how:   (put a step counter in each cell)
Spatial inhomogeneity:    yes
      how:   Modules with cells using different local rules can be put side by side.
Hierarchical aspects:    yes
      how:   Modules may be built using smaller modules; similarly for single cells.

BibTeX entries

All entries in one file, comprising   Beckers:1995:AHP

Further remarks

A CA can be composed of modules. These are rectangularly shaped subgrids which may overlap and use different local rules. Modules can also be put together in a hierarchical way to build larger modules; this concerns the set of states as well as the local rule to be used. Similarly cell prototypes can be composed of simpler subcells (and additional registers and extensions of the local rule). Hical includes \texttt{hii} which is a graphical frontend allowing the interactive control of simulation runs and the inspection of the states of all cells at run time.
This page has been automatically generated on Sat May 3 14:15:20 1997
Please send questions, remarks, updates to Thomas Worsch <worsch@ira.uka.de>