User is running a model on a Distributed environment. He observes that with contact present in his model, he gets the following decomposer ERROR

Failure in the Greedy domain decomposer.
Error Code = 2.

What does this message mean and is there a workaround?

This is a very general error message, but in one particular case involving the presence of contact, the message was triggered by two contact pairs in the model that were overlapping. Once this overlap was removed, the model ran fine. The explanation was that the decomposer had a subdomain containing nothing but contact/target elements, but was not able to find any near by 'real' elements to 'absorb.' Consequently, it had a subdomain whose stiffness was 0.

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