petsc-3.14.6 2021-03-30
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DMPlexComputeBdIntegral

 Form the integral over the specified boundary from the global input X using pointwise functions specified by the user

Synopsis

#include "petscdmplex.h"   
PetscErrorCode DMPlexComputeBdIntegral(DM dm, Vec X, DMLabel label, PetscInt numVals, const PetscInt vals[],
                                       void (*func)(PetscInt, PetscInt, PetscInt,
                                                    const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[],
                                                    const PetscInt[], const PetscInt[], const PetscScalar[], const PetscScalar[], const PetscScalar[],
                                                    PetscReal, const PetscReal[], const PetscReal[], PetscInt, const PetscScalar[], PetscScalar[]),
                                       PetscScalar *integral, void *user)

Input Parameters

dm - The mesh
X - Global input vector
label - The boundary DMLabel
numVals - The number of label values to use, or PETSC_DETERMINE for all values
vals - The label values to use, or PETSC_NULL for all values
func = The function to integrate along the boundary
user - The user context

Output Parameter

integral - Integral for each field

See Also

DMPlexComputeIntegralFEM(), DMPlexComputeBdResidualFEM()

Level

developer

Location

src/dm/impls/plex/plexfem.c

Examples

src/snes/tutorials/ex12.c.html

Implementations

src/dm/impls/plex/plexfem.c:2164:static PetscErrorCode DMPlexComputeBdIntegral_Internal(DM dm, Vec locX, IS pointIS,
Index of all DMPLEX routines
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Index of all manual pages