[Scip] vbctool

[Stefan Heinz]

Hi SCIP users,


the vbctool which can be used to visualize the branch-and-cut trees is 
now available in source code (along with new pre-compiled binaries). 
This fixes the issues people had with the outdated binaries.

http://www.informatik.uni-koeln.de/ls_juenger/research/vbctool/

This tool can be used to visualize the search tree of SCIP. Setting the 
string parameter "vbc/filename" via the callable library or within the 
interactive shell enable SCIP to produce a file (with the specified 
name) which is readable by the vbctool and visualizes the 
branch-and-bound tree. The colors of the node are defined here:

http://scip.zib.de/doc/html/type__vbc_8h.html#ade28dec7694b51161d2acc407b689ce8

Also have a look at the parameters:

# name of the VBC Tool output file, or - if no VBC Tool output should be created
# [type: string, default: "-"]
vbc/filename = "-"

# should the real solving time be used instead of a time step counter in VBC output?
# [type: bool, range: {TRUE,FALSE}, default: TRUE]
vbc/realtime = TRUE

# should the node where solutions are found be visualized?
# [type: bool, range: {TRUE,FALSE}, default: FALSE]
vbc/dispsols = FALSE


Enjoy Stefan