petsc-3.7.5 2017-01-01
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MatCoarsenApply

 Gets a coarsen for a matrix.

Synopsis

#include "petscmat.h" 
PetscErrorCode  MatCoarsenApply(MatCoarsen coarser)
Collective on MatCoarsen

Input Parameter

coarsen -the coarsen

Options Database Keys

To specify the coarsen through the options database, use one of the following 
   -mat_coarsen_type mis
To see the coarsen result 
   -mat_coarsen_view

Notes: Use MatCoarsenGetData() to access the results of the coarsening

The user can define additional coarsens; see MatCoarsenRegister().

Keywords

matrix, get, coarsen

See Also

MatCoarsenRegister(), MatCoarsenCreate(),
MatCoarsenDestroy(), MatCoarsenSetAdjacency(), ISCoarsenToNumbering(), ISCoarsenCount(), MatCoarsenGetData()

Level:beginner
Location:src/mat/coarsen/coarsen.c
Index of all MatOrderings routines
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Index of all manual pages