petsc-3.6.1 2015-08-06
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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.

See Also

DMPlexComputeJacobianFEM()

Level:developer
Location:src/dm/impls/plex/plexfem.c
Index of all DM routines
Table of Contents for all manual pages
Index of all manual pages