Hi everyone.
Sorry for my ignorance. I'm trying to follow the instructions at
https://www.ibm.com/support/pages/stop-cplex-optimization-run-and-resume-it-later-timeI'm optimizing a problem in LP format using CPLEX_Studio128, where all variables are binary. CPLEX is running for a long time after the following standard shell commands:
CPLEX> read filename.lp
CPLEX> optimize
I was told that in a day or two there will be a power interruption at my place of work. So before that happens I will need to stop CPLEX, apply some appropriate shell commands, and exit CPLEX. Once the power comes back on I would like to resume optimization from where it stopped.
I've run some test examples to try and follow the instructions in the above link and got the following error:
CPLEX> write filename.bas
CPLEX Error 1262: No basis exists.
I also tried:
CPLEX> write filename.mst
CPLEX Error 3020: No MIP start exists.
No file written.
Can someone please tell me the explicit commands I need to enter before exiting CPLEX so that I can resume where I was during the optimization procedure?
Thank you,
Marcus.
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Marcus Garvie
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