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Re: [Question #697526]: CHOLMOD warning: matrix not positive definite


Question #697526 on Yade changed:

    Status: Open => Answered

Bruno Chareyre proposed the following answer:
It can happen that LDL fails for numerical reason, then the solver switches to LDLt, which is more stable.
I _could_ be a safe warning.

That said, I'm struggling to understand why you would use periodic FlowEngine with (it seems) a non-periodic problem.
Also this makes no sense in periodic conditions since there are no boundaries:

I hope it helps.


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