[Scip] Call to adjustedUb in SCIPvarChgUbOriginal causing solve failures

fergal mohan fergal at mohandigital.com
Tue May 3 13:32:46 MEST 2011


Hi all, I've recently updated the Microsoft .NET wrapper that I wrote a couple 
of years ago to allow .NET Applications so that it could be used SCIP 2.0 and 
Soplex 1.5. I restructured the projects to use the new Developer Studio Solution 
files that were made available (thanks Wei Huang) and after fixing up a few 
things that I was expecting all seems to be working as expected apart from one 
problem. When I try to set an upper bound using SCIPvarChgUbOriginal() to 1e100 
the new call to adjustedUb() overrides the incoming value and restricts the 
upper bound to 1e20. This causes my previously working solve to now fail. I'm 
not sure if it's a case that I have previously been relying on something that 
was incorrect in the older versions or if this is a "real" issue with the 
current SCIP version. I can supply more details on my test if it helps but at 
the macro level I just wanted to first check with the the mailing list colective 
wisdom as to whether the adjustedUb() interaction is kosher? Any insights out 
there ?
Fergal 



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