petsc-3.6.4 2016-04-12

DMPlexComputeInterpolatorFEM

Form the local portion of the interpolation matrix I from the coarse DM to the uniformly refined DM.

Synopsis

#include "petscdmplex.h"   
PetscErrorCode DMPlexComputeInterpolatorFEM(DM dmc, DM dmf, Mat In, void *user)

Input Parameters

	dmf	- The fine mesh
	dmc	- The coarse mesh
	user	- The user context

Output Parameter

In -The interpolation matrix

Note

The first member of the user context must be an FEMContext.

We form the residual one batch of elements at a time. This allows us to offload work onto an accelerator, like a GPU, or vectorize on a multicore machine.

DMPlexComputeInterpolatorFEM

Synopsis

Input Parameters

Output Parameter

Note

See Also