multiLevel at the scotch level
Functionality to add/problem to solve
multiLevel decomposition can be used to minimise 'expensive' cuts. scotch can support this natively using SCOTCH_archTleaf.
Target audience
multi-node runs
Proposal
E.g. start from the extended multiLevel input:
numberOfSubdomains 1024;
method multiLevel;
multiLevelCoeffs
{
method scotch
domains (2 8); //< inferred as domains (64 2 8);
}
Just needs additional spec of the individual cut weights.
What does success look like, and how can we measure that?
Would be nice to have stats about cuts*weights on the individual levels...
Edited by Mattijs Janssens