DAGetInterpolation

 Gets an interpolation matrix that maps between grids associated with two DAs.

Synopsis

#include "petscda.h"   
int DAGetInterpolation(DA dac,DA daf,Mat *A,Vec *scale)
Collective on DA

Input Parameters

dac - the coarse grid DA
daf - the fine grid DA

Output Parameters

A - the interpolation matrix
scale - a scaling vector used to scale the coarse grid restricted vector before applying the grid function or grid Jacobian to it.

Keywords

interpolation, restriction, multigrid

See Also

DARefine()

Level:intermediate
Location:src/dm/da/src/dainterp.c
Index of all DA routines
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Index of all manual pages