[Haskell-cafe] how to measure memory usage?

[Johannes Waldmann]

How could I measure the amount of memory 
that my ghc-compiled program is actually using,
from inside the program? 

It is expanding nodes in a (game) tree,
and I need to stop this when it gets 
near the physical limits of the system
(or some other limit that I want to set on the command line)

The node size is varying so I cannot just
pre-compute a maximal number of nodes.

Thanks - J.W.

PS: the program is this:
http://www.littlegolem.net/jsp/info/player.jsp?plid=22146