Originally posted by: rahul123don

Hi,
I want to start my MIP with an initial feasible solution. I have came to know that ILOG can pick up the solution from a .MST or .SOL file. Can anybody help me with the block of code that need to be put in for cplex to write the output in these format of files. Also subsequently, I will need to import this solution to give it as MIP start. Please help me the code snippet of that too. I am using interactive optimizer. Please help, this is urgent.
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Originally posted by: SystemAdmin

To write the file:

read model.lp
opt
write start.mst

To read the file

read model.lp
read start.mst
opt

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Originally posted by: rahul123don

Thanx for replying Daniel.

I wrote

execute PARAMS {
cplex.writelevel = 1;
cplex.WriteSolution("start.mst");
}

but this gives the error as " unknown property 'WriteSolution' "

How do I write my solution?
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Originally posted by: GuangFeng

It looks like you are using OPL Script. To provide a solution to a problem, you can refer to the sample warmstart (<CPLEX_Studio122>\opl\examples\opl\warmstart).

To write a solution of an OPL model to a file, you need to use IloOplModel.printSolution().
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