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In multi-model optimization, the number of processors must be larger than the number of models plus one.
I am getting this error
Please help.
The documentation from the Help of OptiStruct for MMO also states these requirements.
But just like the message that you have compied here, you need to use +1 processors than models that going to be run. (assuming 1 process per model)
So if your MMO run has 2 sub-models, then each model will run in 1 process, and you need an extra one for controlling the process.
So, for 2 models, -np 3 should be enough.