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Reply To: Manipulating populations with postprocessors on GPU

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› Forums › OpenLB › General Topics › Manipulating populations with postprocessors on GPU › Reply To: Manipulating populations with postprocessors on GPU

November 17, 2025 at 10:46 am #10973
Adrian
Keymaster

Overlap communication is not designed to encompass the entire domain. You will need custom code to realize such a complex scheme. E.g. for our FSI integrals we implemented custom PerBlock scoped post processors with CPU / GPU specific implementations.

Can you explain what you want to implement in more detail? I do not quite get why you need to access cells at the opposite side of the domain (unless it is for periodicity which is a different question and doesn’t require the overlap to span the entire domain).