Originally posted by: CplexUser1453

Hello

I would like to save a solution of an OPL .mod model to an .mst file to be able to do MIP start later on.

It seems to me that the Cplex.MipStart Method should allow me to do it : IDE and OPL > OPL Interfaces > .NET interface reference manual > ILOG.CPLEX Namespace > Cplex Class > Cplex Methods (suggestion : it would be really nice if I could post a link to the documentation I am talking about - this is not pointing in the right direction http://pic.dhe.ibm.com/infocenter/cosinfoc/v12r4/index.jsp?topic=%2Filog.odms.studio.help%2FOptimization_Studio%2Ftopics%2FCOS_relnotes_intro.html)

it seems to me that I should be able to write the following .mod file :

include "myModel.mod"

main {
thisOplModel.generate();
cplex.solve();
cplex.writeMIPStart('start.mst')
}

However I get an "unknown property 'writeMIPStart'" error. What am I missing?
Thx a lot!
#DecisionOptimization
#OPLusingCPLEXOptimizer

Hi,

writeMIPStart is available in the .NET concert API but not in OPL scripting unfortunately.

So what you could do is:

1) Use the writeMIPStart from .NET once you have your CPLEX and OPL .NET objects.

or

2) Do an external java call from OPL scripting, you would call writeMIPStart that is also available with the java concert API.

Regards
#DecisionOptimization
#OPLusingCPLEXOptimizer

Now this is available in OPL as said at

https://www.ibm.com/developerworks/community/forums/html/topic?id=a9847f2f-974b-46a4-ac93-d781f9d08304&ps=25

#DecisionOptimization
#OPLusingCPLEXOptimizer