petsc-3.13.6 2020-09-29
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MatPartitioningPTScotchSetStrategy

 Sets the strategy to be used in PTScotch.

Synopsis

#include "petscmat.h" 
PetscErrorCode MatPartitioningPTScotchSetStrategy(MatPartitioning part,MPPTScotchStrategyType strategy)
Collective on MatPartitioning

Input Parameters

part - the partitioning context
strategy - the strategy, one of 
     MP_PTSCOTCH_DEFAULT     - Default behavior
     MP_PTSCOTCH_QUALITY     - Prioritize quality over speed
     MP_PTSCOTCH_SPEED       - Prioritize speed over quality
     MP_PTSCOTCH_BALANCE     - Enforce load balance
     MP_PTSCOTCH_SAFETY      - Avoid methods that may fail
     MP_PTSCOTCH_SCALABILITY - Favor scalability as much as possible

Options Database

-mat_partitioning_ptscotch_strategy [quality,speed,balance,safety,scalability] -strategy

Notes

The default is MP_SCOTCH_QUALITY. See the PTScotch documentation for more information.

See Also

MatPartitioningPTScotchSetImbalance(), MatPartitioningPTScotchGetStrategy()

Level

advanced

Location

src/mat/partition/impls/scotch/scotch.c

Implementations

MatPartitioningPTScotchSetStrategy_PTScotch in src/mat/partition/impls/scotch/scotch.c

Index of all MatOrderings routines
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Index of all manual pages