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/petsc/src/ksp/ksp/tutorials/amrex/
H A DMyTest.cxx50 MLEBABecLap mleb(geom, grids, dmap, info, amrex::GetVecOfConstPtrs(factory)); in solve()
87 plotmf[ilev].define(grids[ilev], dmap[ilev], 2, 0); in writePlotfile()
136 grids.resize(nlevels); in initGrids()
150 grids[ilev].define(domain); in initGrids()
151 grids[ilev].maxSize(max_grid_size); in initGrids()
169 dmap[ilev].define(grids[ilev]); in initData()
172 …factory[ilev].reset(new EBFArrayBoxFactory(eb_level, geom[ilev], grids[ilev], dmap[ilev], {2, 2, 2… in initData()
174 phi[ilev].define(grids[ilev], dmap[ilev], 1, 1, MFInfo(), *factory[ilev]); in initData()
175 rhs[ilev].define(grids[ilev], dmap[ilev], 1, 0, MFInfo(), *factory[ilev]); in initData()
176 acoef[ilev].define(grids[ilev], dmap[ilev], 1, 0, MFInfo(), *factory[ilev]); in initData()
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H A DMyTest.H47 amrex::Vector<amrex::BoxArray> grids; variable
/petsc/doc/overview/
H A Ddiscrete_table.md16 * - Structured grids
21 * - Staggered structured grids
41 * - Unstructured grids
H A Dnutshell.md44 - Simple structured grids, `DMDA`.
45 - Staggered grids, {any}`ch_stag`, `DMSTAG`.
46 - Unstructured grids, {any}`ch_unstructured`, `DMPLEX`.
48 - Quad or octree grids, `DMFOREST`.
/petsc/doc/manualpages/MANSECHeaders/
H A DDM4 … other) simulations. See, for structured grids `DMDA`, for staggered grids `DMSTAG`, and for unstr…
/petsc/src/mat/tests/output/
H A Dex111_1.out1 coarse grids: 4 4 4; fine grids: 7 7 7
H A Dex111_2.out1 coarse grids: 4 4 4; fine grids: 7 7 7
/petsc/doc/manual/
H A Ddmcommonality.md18 ## DMDA simple structured grids
20 For structured grids, {any}`sec_struct`, the indexing is trivial, the points are represented as tup…
28 For finite difference methods on structured grids using a stencil formula, the "connectivity inform…
33 ## DMSTAG simple stagger grids
38 numerical values. As with simple structured grids, each cell can be represented as a $(i, j, k)$ tu…
48 For finite difference methods on staggered structured grids using a stencil formula the "connectivi…
56 For general unstructured grids, {any}`ch_unstructured`, there is no formula for computing the `offs…
62 For unstructured grids, one does not in general iterate over all the entities on all the points. Ra…
H A Ddmbase.md6 … connecting the solvers to the mathematical models and discretizations, including grids (or meshes)
13 classes `DM` currently supports are PDEs on structured and staggered grids with finite difference m…
16 grids with finite element and finite volume methods (`DMPLEX` -- {any}`ch_unstructured`), PDEs on q…
H A Dvec.md44 as structured grids, staggered grids, unstructured grids, networks, and particles.
84 …s running in parallel that involve multi-dimensional structured grids, unstructured grids, network…
91 …any}`sec_stag`, and {any}`ch_unstructured` for more details on `DM` for structured grids, staggered
92 structured grids, and for unstructured grids,
103 ### DMDA - Creating vectors for structured grids
106 are intended for use with *logically structured rectangular grids*
111 parallelizing staggered arrays/grids, `DMSTAG` -- {any}`ch_stag`, or unstructured grid problems, `D…
212 ### DMSTAG - Creating vectors for staggered grids
214 For structured grids with staggered data (living on elements, faces, edges,
221 ### DMPLEX - Creating vectors for unstructured grids
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H A Ddmstag.md5 For structured (aka "regular") grids with staggered data (degrees of freedom potentially living on …
13 … choosing and adhering to the complex indexing conventions needed for staggered grids (in parallel)
H A Ddmnetwork.md25 graph problems, or generator/transmission line data for power grids.
H A Dksp.md1116 …> This option and the previous option work to determine how aggressively the grids are coarsened.
1131 …rs` \<rn,rn-1,...,r1:int> Set a schedule for MPI rank reduction on coarse grids. `See PCGAMGSetRan…
1209 number of active processes on coarse grids to reduce communication costs
1216 reducing the active number of processes on other coarse grids.
1223 repartition the coarse grids with `-pc_gamg_repartition <true>`,
1249 are additional parameters for changing the weights on coarse grids.
1290 grids or highly anisotropic problems, large jumps in material
1314 coarse grids and generally decreasing the solver convergence rate.
1323 larger coarse grids and is more expensive, but generally improves
1325 If the coarse grids are expensive to compute, and use a lot of memory,
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/petsc/doc/changes/
H A D21.md10 - Simpler interface for structured grids, see
101 - Simpler interface for structured grids, see
104 nonlinear problems on structured grids. See
H A D212.md18 - Allow coloring of periodic grids
H A D2029.md134 codes that use rectangular grids
157 codes that use rectangular grids
H A D221.md72 nonuniform grids using the coordinate information provided with
H A D311.md93 on regular staggered grids, in a manner similar to the usage of
H A D31.md140 to generate refined grids. Added options
H A D2017.md111 using unstructured grids. See
H A D34.md246 - There is now a manual section on unstructured grids.
H A D315.md146 which to reduce active processors on coarse grids in `PCGAMG` that
H A D314.md300 Please use `.vtr` or `.vts` for structured grids (DMDA) and
/petsc/doc/tutorials/
H A Dhandson.md290 - Handling unstructured grids
/petsc/doc/community/meetings/2025/
H A Dindex.md100 … Landau damping with logically regular particle and continuum phase space grids. Stable long time …
182 …into Devito’s symbolic API while maintaining compatibility with staggered grids, subdomains, and c…

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