Lines Matching refs:as
23 A **point** is a `PetscInt` that serves as an abstract "index" into arrays from iterable sets, such…
24 …able set examples can be as simple as the points of a finite difference grid, or cells of a finite…
67 …ec_petscsection_concept` were actually applied onto the **default field**, which is indexed as `0`.
68 The fields inherit the same chart as the "parent" `PetscSection`.
85 A `PetscSection` with one field and and offsets set in `PetscSectionSetUp()` may be thought of as d…
115 … Field-major ordering is provided mainly for compatibility with external packages, such as LibMesh.
120 This is most often used when creating a new `Vec` for a `PetscSection` such as:
151 `PetscSection` can also be applied to distributed problems as well.
163 …we use `PetscSectionCreateGlobalSection()`, which takes the `localSection` and `pointSF` as inputs.
166 The `globalSection` can be used to create global vectors, just as the local section is used to crea…
174 …and vice versa can be done via `DMGlobalToLocal()` and `DMLocalToGlobal()` as described in {any}`s…
175 Note that not all `DM` types use this system, such as `DMDA` (see {any}`sec_struct`).
221 [^petscsection-footnote]: A `PetscSection` can be thought of as a generalization of `PetscLayout`, …