Supported finite elements in the matrix-free infrastrucutre

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giuseppe orlando

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Mar 3, 2025, 1:38:08 PM3/3/25
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Dear all,
I'm writing this message to ask some confirmations about the finite element spaces that support the matrix-free infrastructure.

Trying to use Raviart-Thomas finite element, I get the following error. Hence, I have the impression that only scalar fields and extension to multicomponents can be employed in the finite element framework, unlike a natively vectorial space such as the Raviart-Thomas or the Nédélec finite element space. Is that true?

What about simplicial meshes and related finite element spaces? I'm aware that it is still marked as experimental, but is there any matrix-free support?

Thanks in advance 
 
Screenshot 2025-03-03 alle 19.32.00.png

Peter Munch

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Mar 3, 2025, 1:53:58 PM3/3/25
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The normal RT element is not working. But FE_RaviartThomasNodal is working with MF.

Regarding simplices: `FE_Simplex(DG)P` (also with FESystem) is working.

Best,
Peter

giuseppe orlando

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Mar 4, 2025, 12:39:59 AM3/4/25
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Dear Peter,
thanks a lot for your answer.

Best,
Giuseppe

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