Fast formation and assembly of finite element matrices with application to isogeometric linear elasticity

Recently, a new formation and assembly strategy was proposed in [1], which resulted in significant speedups in the formation and assembly time of the Galerkin mass matrix in isogeometric analysis. The strategy relies on three key ingredients: (1) assembly row by row, instead of element by element; and an efficient formation strategy based on (2) sum factorization and (3) weighted quadrature, that is applied to each specific row of the matrix....