GMatEvaluateBoundaryOperatorGalerkin

Evaluates the weak form of an operator over a field on the locations defined by the boundary of the underlying grid and its discretization. The test function are defined on the entire grid, but the only nonzeros come from functions with support on the boundary.

Synopsis

#include "gvec.h" 
int GMatEvaluateBoundaryOperatorGalerkin(GMat M, int numFields, int *sFields, VarOrdering sOrder, LocalVarOrdering sLocOrder,
                                         int *tFields, VarOrdering tOrder, LocalVarOrdering tLocOrder, int op, PetscScalar alpha,
                                         MatAssemblyType type, void *ctx)

Input Parameter

M -The grid matrix

numFields -The number of fields in sFields and tFields

sFields -The shape function fields

sOrder -The global variable ordering for the shape functions

sLocOrder -The local variable ordering for the shape functions

tFields -The test function fields

tOrder -The global variable ordering for the test functions

tLocOrder -The local variable ordering for the test functions

op -The operator

alpha -A scalar multiple for the operator

type -The matrix assembly type

ctx -An optional user provided context for the function

GMatEvaluateBoundaryOperatorGalerkin

Synopsis

Input Parameter

See Also