[Scip] Generation of blk and dec files

Marco Luebbecke marco.luebbecke at rwth-aachen.de
Tue Dec 4 21:39:56 MET 2012


Hi Victor,

good to see you active on generic CG...

victorsmiller> 2) I noticed by looking at some of the instances in the
victorsmiller> gcg directory that the lp or mps file was generated by
victorsmiller> zimpl.  How was the associated dec or blk file
victorsmiller> generated?  Was it by hand, or is there some other
victorsmiller> program that helps you to do this?

For the LP files which are shipped with the distribution, try the
following:

read your_file.lp
detect
display decomposition
 

magic, eh? ;-)

victorsmiller> 3) From the brief description of dec and blk files in
victorsmiller> the online docs they appear to be the same.  Are they,
victorsmiller> or if not, how do they differ?

There is an important difference: DEC list the constraint names, BLK
files list the variable names. The first format is more natural.


Concerning 1) I do not have an answer.


Have fun,
Marco


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