On 03/05/2017 11:44 AM, RAJAT ARORA wrote:
Thanks for the prompt reply. Yes, I thought about this as deal.ii uses P4est
which does not support anisotropic refinement.
I wanted to confirm that this was indeed the case and I am not missing
something.
Correct.
I'm going to add to both your question and Daniel's answer that 500k elements
in the coarse mesh do not necessarily mean that you will run out of memory.
Sure, it's a lot, but if you have a non-trivial problem, then you will also
have 50k "locally owned" cells on each processor, and the linear system is
going to consume at least as much memory as the 450k artificial cells.
So I think that 500k coarse cells is sort of the limit of what makes sense,
but it's not in itself a death sentence yet that derails the whole approach.
Best
W.
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Wolfgang Bangerth email: [email protected]
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