I'm new to Boost and today I tried to use the mcgregor_common_subgraphs
functions but can't find an explanation why the function shows such bad
performance when I use it.
On windows/vc/boost-1.68, the same thing happens. The graphs are tiny [reading and parsing should take most of the time], it looks more like you [the algo] get stuck in a loop, i.e. you hit a cycle (in a graph) with 0.8 and not with 0.7 (or there's a bug in your algo, creating an endless loop).
degski