Make Zoltan's Hyperedge Size Threshold Runtime Controllable #6036
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As a secondary benefit, this PR will obviate the |
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Slight rewording and splitting long lines for the most part.
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| this->zoltanPhgEdgeSizeThreshold())); | ||
| } | ||
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| if ((partitionMethod == Dune::PartitionMethod::metis) && |
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could be else if
Good point. I've pushed an update to that effect.
This commit introduces a new hidden runtime parameter,
ZoltanPhgEdgeSizeThreshold (--zoltan-phg-edge-size-threshold,
double, default value = 0.35)
which maps to Zoltan's low-level control parameter
PHG_EDGE_SIZE_THRESHOLD
that controls which hypergraph edges to omit/discard. We add a new
parameter to 'setupZoltanParameters()' and thread the command line
parameter through as an argument to this function.
This is to enable runtime experimentation with this aspect of the
partitioning algorithm, but end-users should typically not alter the
default value without good reason.
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PR approved and build check is green. I'll merge into master. |
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This commit introduces a new hidden runtime parameter,
which maps to Zoltan's low-level control parameter
that controls which hypergraph edges to omit/discard. We add a new parameter to
setupZoltanParameters()and thread the command line parameter through as an argument to this function.This is to enable runtime experimentation with this aspect of the partitioning algorithm, but end-users should typically not alter the default value without good reason.