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  1. 02 May, 2012 1 commit
  3. 06 Mar, 2011 1 commit
  5. 10 Feb, 2011 1 commit
  7. 13 Nov, 2010 1 commit
  9. 07 Mar, 2010 1 commit
  11. 21 Aug, 2009 1 commit
    • Tiago Peixoto's avatar
      Dump lambda::bind in favor of boost::bind · 7fb5d71d
      Tiago Peixoto authored 
      This is a large commit which replaces lambda::bind with boost::bind in
most parts of the code. This improves compilation time, and slightly
decreases compilation memory usage in some cases.
      7fb5d71d
  13. 13 Aug, 2009 1 commit
    • Tiago Peixoto's avatar
      Reorganize exceptions thrown · f257d426
      Tiago Peixoto authored 
      No longer only thrown GraphError upon any error, but instead throw
specific exceptions which are more meaninful and are mapped to standard
python exceptions, such as IOError, ValueError and RuntimeError.
      f257d426
  15. 06 Feb, 2009 1 commit
    • Tiago Peixoto's avatar
      Disable internal bounds checking in property maps · 0ababf9c
      Tiago Peixoto authored 
      This includes a new vector property map type (fast_vector_property_map)
which has optional disabling of bounds checking, through its associate
map type (unchecked_fast_vector_property_map). This should improve
performance on algorithms which depend on tight loops which access
property maps.

Bounds checking is only disabled locally just before the algorithms run,
and proper care is taken for bounds checking _beforehand_. The property
maps exposed to python still have internal bounds checking.
      0ababf9c
  17. 15 Jul, 2008 1 commit
  19. 17 Feb, 2008 1 commit
    • Tiago Peixoto's avatar
      Split libgraph_tool into sub-modules and add test cases · 3cfff0cb
      Tiago Peixoto authored 
      This commit splits libraph_tool into different libraries:
 
   - libgraph_tool_core
   - libgraph_tool_clustering (*)
   - libgraph_tool_community (*)
   - libgraph_tool_correlations (*)
   - libgraph_tool_distance (*)
   - libgraph_tool_generation (*)
   - libgraph_tool_layout (*)
   - libgraph_tool_misc (*)
   - libgraph_tool_stats (*)

It also adds the python sub-module 'test', which provides extensive unit
testing of the core functionality. The core library is fully functional
and all test pass successfully.

(*) -> module needs to be ported to new refactoring, and does not yet build
      3cfff0cb
  21. 10 Feb, 2008 1 commit
    • Tiago Peixoto's avatar
      Refactor metaprogramming engine · 0b66e272
      Tiago Peixoto authored 
      This is a huge commit which completely refactors the metaprogramming
engine which generates and selects (at run time) the graph view type and
the desired algorithm implementation (template instantiation) that runs
on it.

Things are laid out now as following. There exists a main underlying
graph type (GraphInterface::multigraph_t) and several other template
classes that mask it some way or another, in a hierarchic fashion:

     multigraph_t -> filtered_graph (edges only, vertices only, both)
         |                               |           |           |
         |                               |           |           |
         |-------(reversed_graph)--------|-----------|-----------|
         |                               |           |           |
         \------(UndirectedAdaptor)------------------------------/

The filtered_graph filters out edges and/or vertices from the graph
based on some scalar boolean property. The reversed_graph reversed the
direction of the edges and, finally, the UndirectedAdaptor treats the
original directed graphs as undirected, transversing the in- and
out-edges of each vertex indifferently. Thus, the total number of graph
view types is 12. (The option --disable-graph-filtering can be passed to
the configure script, which will disable graph filtering altogether and
bring the total number down to 3, to reduce compile time and memory
usage)

In general, some specific algorithm, implemented as a template function
object, needs to be instantiated for each of those types. Furthermore,
the algorithm may also depend on other types, such as specific
property_maps. Thus, the following scheme is used:

    struct my_algorithm // algorithm to be implemented
    {
        template <class Graph, class PropertyMap>
        void operator()(Graph *g, PropertyMap p, double& result) const
        {
            // ...
        }
    };

    // in order for the above code to be instantiated at compile time
    // and selected at run time, the run_action template function object
    // is used from a member function of the GraphInterface class:

    double GraphInterface::MyAlgorithm(string prop_name)
    {
        double result;
        boost::any vprop = prop(property, _vertex_index, _properties);
        run_action<>()(*this, bind<void>(my_algorithm(), _1, _2,
                                         var(result)),
                       vertex_scalar_properties())(vprop);
        return result;
    }

The whole code was changed to reflect this scheme, but now things are
more centralized and less ad-hoc code needed to be
written. Unfortunately, due to GCC's high memory usage during template
instantiations, some of the code (namely all the degree correlation
things) had to be split in multiple compilation units... Maybe this will
change in the future if GCC gets optimized.

This commit also touches other parts of code. More specifically, the way
filtering gets done is very different. Now we only filter on boolean
properties, and with the above scheme, the desired implementation runs
with the correct chosen type, and no implicit type conversions should
ever happen, which would have a bad impact on performance.
      0b66e272
  23. 13 Dec, 2007 1 commit
  25. 26 Nov, 2007 1 commit
  27. 04 Nov, 2007 1 commit
  29. 12 Oct, 2007 1 commit
  31. 11 Jul, 2007 1 commit
    • Tiago Peixoto's avatar
      * src/graph/graph_extended_clustering.cc... · e5d146c6
      Tiago Peixoto authored 
      * src/graph/graph_extended_clustering.cc (GraphInterface::SetExtendedClusteringToProperty): init vector_property_map size, so that access becomes thread safe.

* src/graph/graph_clustering.cc (GraphInterface::SetLocalClusteringToProperty): init vector_property_map size, so that access becomes thread safe.


git-svn-id: https://svn.forked.de/graph-tool/trunk@115 d4600afd-f417-0410-95de-beed9576f240
      e5d146c6
  33. 30 Jun, 2007 2 commits
  35. 18 May, 2007 1 commit
  37. 15 Nov, 2006 1 commit
  39. 14 Nov, 2006 1 commit
  41. 03 Sep, 2006 1 commit
  43. 22 Aug, 2006 1 commit
  45. 18 Aug, 2006 1 commit
  47. 16 Aug, 2006 1 commit
  49. 15 Aug, 2006 2 commits