petsc-3.8.4 2018-03-24
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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

See Also

PetscGLLCreate(), PetscGLLDestroy(), PetscGLLView()

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