Linear Algebra¶ Matrix Addressing Overview CSR Format Row Layout: Lower | Diagonal | Upper Face Addressing Arrays 8-Cell 2-Rank Example LDU to CSR Correspondence Physical Boundary Contributions (COO) Processor Boundary Contributions (COO) How to Access Values in Practice Operator Assembly Conventions gaussGreenGrad — Explicit Only gaussGreenDiv — Explicit gaussGreenDiv — Implicit gaussGreenLaplacian — Explicit gaussGreenLaplacian — Implicit