petsc-3.8.4 2018-03-24

PetscGLL

the locations, from [-1,1] and weights of the Gauss-Lobatto-Legendre nodes of a given size

typedef struct {
  PetscInt  n;
  PetscReal *nodes;
  PetscReal *weights;
} PetscGLL;

These values are usful in implementing spectral methods based on the Gauss-Lobatto-Legendre nodes

The array nodes[] contains the vertices of each node The array weights[] are the integration weights

The mass matrix for the element corresponds to the diagona matrix whose entries are the weights[]

Developer Notes: This may eventually get merged into a more abstract or general object for managing integration schemes or discretization schemes.

References: XXXX