[SCIP] parameters not all coped to subscip

[James Cussens]

Dear SCIP,


I have a SCIP problem where I add many parameters.
I've noticed that the RINS and ALNS heuristics create a subscip (from the
main scip instance) using SCIPcopyLargeNeighborhoodSearch. One problem I
have encountered is that not all parameters from my main scip instance get
copied to the subscip, and this causes errors during the subscip solving
since e.g. I have a separator in one of my constraint handlers that asks
for a value from one of these uncopied parameters. All of SCIP's parameters
(in contrast to those added by my project code) get copied fine.

The parameters that I add during SCIPincludeConshdlr... for my constraint
handlers are copied (along with their current values), but not the
parameters  added during problem construction.

This is not a big problem, and indeed the value that my separator needs
should be stored in the constraint handler data (current code was an easy
hack). But I am interested to know whether this is intended behaviour or
not.

James

-- 
James Cussens
Dept of Computer Science
Room 326, The Hub, Deramore Lane
University of York
York YO10 5GE, UK
Tel    +44 (0)1904 325371
http://www.cs.york.ac.uk/~jc
http://www.york.ac.uk/docs/disclaimer/email.htm
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