Check out the latest version of Routino: svn co http://routino.org/svn/trunk routino
Go back to the internal structure used (but reverted) during version 1.2 development where each segment is stored only once. This halves the memory usage (mmap files or just files) for planetsplitter. This is allowed because a new algorithm to create the node to segment indexes makes it simpler now that it was. This change is required so that super-node/segment optimisation doesn't remove mutual loops. This change doesn't handle turn restrictions yet.
trunk/src/nodesx.c