Share common Scatterer between Vectors on same FunctionSpace#4293
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chrisrichardson wants to merge 5 commits into
Open
Share common Scatterer between Vectors on same FunctionSpace#4293chrisrichardson wants to merge 5 commits into
chrisrichardson wants to merge 5 commits into
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Can you describe the fix? Issue #3065 presents several options, with pros and cons. |
chrisrichardson
marked this pull request as ready for review
July 21, 2026 13:10
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Addresses #3065 by adding a
ScatterertoFunctionSpace. AllFunctions created on aFunctionSpacenow create aVectorwith the same sharedScatterer.Because all
Vectors in the sameFunctionSpacehave the same parallel layout, a sharedScatterershould always work. TheMPI_Requestand the actual data, required during a scatter operation are external to theScattererso should not be affected by sharing theScattereritself.