help interpreting DSGraph->dump

dot is already available on the CSIL machines at:
  /usr/dcs/projects/cs426/Software/bin/dot

Note that you can generate the local, bottom-up or top-down DS graphs
for each function by using one of these command:

  analyze -datastructure file.bc
  analyze -budatastructure file.bc
  analyze -tddatastructure file.bc

That produces *.dot files for each function.

--Vikram
http://www.cs.uiuc.edu/~vadve