The shell script "ccd-max" (create core data ) generates all the DIMACS 
 core test data files for max-flow problem in the current directory.
 It is invoked with one argument as follows:
			 																 
 ccd $1 			 												 		 
			 																 
 where n=2^($1),  is the size of the input which must be a power of two.
 It assumes that all the generator programs have been compiled in their
 respective directories in the dimacs directory structure. That is 
 there is a directory netflow/generators/network and the sub-directories
 for the various generators. Set the variable GENDIR in ccd-max to point
 to the root of the dimacs tree.

 For the Network-Width Family Genrmf-Long needs x to be a multiple of 4.
 If x is not a multiple of 4 then ccd-max chooses the next higher multiple 
 of 4. Similarly for Genrmf-Wide ccd-max chooses the next higher multiple
 of 5 as x. Here the input size is 2^x.
 
 The data files have appropriate names like  Genrmf-Long.max etc.

 Amit Jain