petsc-3.14.6 2021-03-30
DMPlexRebalanceSharedPoints
Redistribute points in the plex that are shared in order to achieve better balancing. This routine updates the PointSF of the DM inplace.
Synopsis
#include "petscdmplex.h"
PetscErrorCode DMPlexRebalanceSharedPoints(DM dm, PetscInt entityDepth, PetscBool useInitialGuess, PetscBool parallel, PetscBool *success)
Input parameters
| dm | - The DMPlex object.
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| entityDepth | - depth of the entity to balance (0 -> balance vertices).
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| useInitialGuess | - whether to use the current distribution as initial guess (only used by ParMETIS).
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| parallel | - whether to use ParMETIS and do the partition in parallel or whether to gather the graph onto a single process and use METIS.
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Output parameters
| success | - whether the graph partitioning was successful or not. If not, try useInitialGuess=True and parallel=True.
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Level
intermediate
Location
src/dm/impls/plex/plexpartition.c
Index of all DMPLEX routines
Table of Contents for all manual pages
Index of all manual pages