OutOfMemoryError in TransitiveClosure.closeSimpleDirectedGraph()

[dportabella]

I have a graph with 100k edges, and I get a OutOfMemoryError
when executing TransitiveClosure.closeSimpleDirectedGraph()

is there a solution for this?

[jsichi]

Run with a bigger heap?

[dportabella]

i was thinking more about serializing to a temporal file as needed, rather than increasing the heap memory.
is it possible?
has JGraphT some work in this direction?

[jsichi]

All of our algorithms are currently in-memory, not disk-based, so no we haven't worked in that direction so far.