Structure

It handles the tangent-matrix in finite element computations.

• MatrixFieldLis_ is a child of MatrixField_.
• It uses LIS_OMP engine.
• It also defines a data type for storing the precondition matrix.

TYPE, EXTENDS(MatrixField_) :: MatrixFieldLis_
  INTEGER(I4B), ALLOCATABLE :: lis_ia(:)
  INTEGER(I4B), ALLOCATABLE :: lis_ja(:)

• If the matrix is square, then the storage format is FMT_NODES
• If the matrix is Rectangle, then the storage format is FMT_NODES