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I'm trying to run a Riks analysis, and I get the following error message:
** Error: zero pivot at node5's Tx degree of freedom (EQN#25)!
What is this due to? The solver halves the time-step after this. Also, I am trying to model a pressure, but since Riks does not support this, I am using a variable load (but constant function) normal to the surface instead. This should have the same effect, right?
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Do you mean "from Sparse to AMG", since I only saw this for BCS and never for AMG?
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