Discrete exterior calculus is a fundamental concept of our grid based fluid solvers.
Directly applying the operators can be implemented efficiently, but they are often encoded via sparse matrices. These matrices are easier to handle for the implementation of preconditioners compared to the direct evaluation.
Therefore we need a way to transform the operators into sparse matrices.
msiglreith
commented
7 years ago
Discrete exterior calculus is a fundamental concept of our grid based fluid solvers. Directly applying the operators can be implemented efficiently, but they are often encoded via sparse matrices. These matrices are easier to handle for the implementation of preconditioners compared to the direct evaluation.
Therefore we need a way to transform the operators into sparse matrices.