| Commit message (Collapse) | Author | Age |
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Two new parameters:
bool tracking, default: no
bool merge_overlapping_components, default: no
tracking:
Allow dynamic regridding using grid component coordinate
offset steered by an external tracker thorn.
merge_overlapping_components:
Merges components once they touch.
- Christian
darcs-hash:20060222144838-34d71-3ee8ae0bad17aa08d270d5856cd7a0fccb4a0754.gz
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darcs-hash:20051117200040-dae7b-47c4cead494170bd96ca4a2a1f43093d6dd73f27.gz
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Correct some errors in the automatic regridding routine.
Add a parameter for verbose screen output.
darcs-hash:20050323211540-891bb-8591fe329d8878afb826f7336d00daf6bb1345cb.gz
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darcs-hash:20050303102105-891bb-990bc0d6e67280328487d08e332794505954890c.gz
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darcs-hash:20050209173226-58c7f-891ddae66abda60e48a6205c84741255a0ca4789.gz
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darcs-hash:20050101162121-891bb-ac9d070faecc19f91b4b57389d3507bfc6c6e5ee.gz
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darcs-hash:20041008214349-891bb-c7bfec9052c47d14c70ed7c9c620e97be1b959f6.gz
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Replace all CVS header tags with the standard "$Header:$".
darcs-hash:20040918132147-891bb-dea889bdd94a479ec412d14d08e9efca63e5c24d.gz
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darcs-hash:20040802094036-07bb3-64cf06381dc2b174152cf31a4725ee88f19ae4f9.gz
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Introduce a parameter that allows omitting calling recompose when no
new levels have been activated or removed.
darcs-hash:20040529165242-07bb3-5a81b08811c9c7cd16cfdcd84482dd3695c4e6bb.gz
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Add parameter "verbose".
Fix regrid-every scheme.
darcs-hash:20040527102716-07bb3-9cd5cdfbcbbe96215ef53895035cc8d37549c3af.gz
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Remove the parameters Carpet::prolongate_initial_data; this is now
always done.
Remove arguments initialise_from and do_prolongate from Regrid().
Regridding is now done in level mode instead of meta mode.
Furthermore, CarpetRegrid is called in singlemape mode.
darcs-hash:20040418112943-07bb3-2e392df1737ab75f3f0d553bb53bde2ed41f8773.gz
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darcs-hash:20040414201944-07bb3-3abc45a6f1034c083fa413d0b917d0f2791a787c.gz
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darcs-hash:20040205151120-07bb3-cfe9235ac5b627bd71559cd5c2db694b4cc895fe.gz
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Introduce a keyword parameter that selects between fixed and variable
progressive mesh refinement.
darcs-hash:20040205085315-07bb3-08164f32105ec814e53691afac7d88ea8e2099fc.gz
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Import the recently announced changes:
1. Carpet has now an infrastructure for multiple maps (aka "grid
patches"). Instead of a single grid hierarchy there can now be
several. This is largely untested, because the remainder of Cactus
cannot handle multiple coordinate systems.
2. The order in which the schedule bins are called has changed. As Ian
Hawke pointed out, the previous order during time evolution was
inconsistent. The initial data ordering did not allow for recovering
and was not usable for progressively solving elliptic equations for
initial data.
3. Carpet now supports convergence levels. The convergence level
specifies by how many factors of two the resolution in the parameter
file should be coarsened (or refined, if negative). This should make
convergence tests and test runs much easier. It is, in principle, also
possible to run several convergence levels at once. This has not been
tested because the remainder of Cactus cannot handle multiple
resolutions. This will be necessary for a multigrid solver, and also
for having a shadow hierarchy to determine where to refine adaptively.
4. Carpet works together with the new CoordBase domain specification
parameters. Without these, using convergence levels will lead to very
strange results.
5. The "modes" have changed. There are now:
meta mode: the whole simulation
global mode: one convergence level
level mode: one refinement level
singlemap mode: one map on one refinement level
local mode: as previously
The whole mode handling has been cleaned up.
6. The regridding thorn has been cleaned up.
7. The kind of prolongation stencil is now determined in Carpet, i.e. at
a fairly hight level, instead of in CarpetLib.
8. The low-order prolongation operators have been made much more
efficient (as have previously the higher-order ones).
9. Assorted smaller changes.
For Carpet users, there should be no major incompatibilities. The major
improvements are 3 and 4 combined. Here is an example:
CoordBase::domainsize = extent
CoordBase::spacing = gridspacing
CoordBase::zero_origin_x = yes
CoordBase::zero_origin_y = yes
CoordBase::zero_origin_z = yes
CoordBase::xextent = 20.0
CoordBase::yextent = 20.0
CoordBase::zextent = 20.0
CoordBase::dx = 1.0
CoordBase::dy = 1.0
CoordBase::dz = 1.0
CoordBase::boundary_shiftout_x_lower = 1
CoordBase::boundary_shiftout_y_lower = 1
CoordBase::boundary_shiftout_z_lower = 1
Carpet::domain_from_coordbase = yes
Carpet::convergence_level = 0
grid::type = coordbase
grid::domain = octant
grid::avoid_origin = no
This gives you a grid that extends from the origin ("zero_origin") up to
20.0 with a grid spacing of 1.0. Symmetry zones and boundary zones are
added automatically. The "shiftout" says that there is no boundary
point on the origin. The staggering parameters (not shown) default to
"no". In order to change the resolution, only the convergence level
has to be adjusted. Note that the old way of specifying the domain
extent still works.
For Carpet developers, one major change is the new mode handling. As
described in 5, the looping macros (that loop over all refinement
levels, or all components) have changed.
darcs-hash:20040125135727-07bb3-51c9647c1b5080e7e180b52a1b81fa155cfd19e9.gz
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Changes to CarpetRegrid.
- Does progressive MR correctly again.
- Will take a criteria for the number of levels to activate from an
aliased function if requested, allowing for adaptive refinement in
time.
darcs-hash:20040113125005-58737-15008754eaae7b272c5a144333241be8ab6bbde2.gz
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darcs-hash:20031219150155-07bb3-41d0f7f3df186e02d5a3a98ad823906252564440.gz
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Implement specifying refined boxes by coordinates instead of by grid
point numbers.
darcs-hash:20031113150437-07bb3-3889e9e5e4f97233034f57ab4f968b1476bd515f.gz
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Introduced a new parameter "outside_boundary_points". It decides
whether points on the fine grid that abutt the outer boundary are
allowed to be outside the coarse grid outer boundary. This is
necessary for periodicity.
darcs-hash:20021212133606-07bb3-3983646ef2ae684dd8a63c7a3c8b0793db93759f.gz
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Checking that CarpetRegrid::refinement_levels is not larger than
Carpet::max_refinement_levels.
darcs-hash:20020828075339-07bb3-04d97f33dc327ad351b6be97617729ba3b38294e.gz
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darcs-hash:20020712071015-07bb3-65562c8dfc17e37747a857674d11b43d2d44ad36.gz
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darcs-hash:20020522142201-e415b-9d71031dfef6cff9cc5ac73320035ce3830f40f0.gz
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darcs-hash:20020522130340-07bb3-deb9a837913eaf46e21cc47e9686166530f052fa.gz
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Fixed a bug in CarpetSlab; was using the local instead of the global
extent.
Added a more comfortable way to specify the refined region. The new
method has no restrictions.
Added a way to specify the location of the outer boundary explicitely.
Added dummy parameter "periodic*" so that Carpet can be used as
drop-in replacement of PUGH (at least when running without
refinement).
darcs-hash:20020323192054-07bb3-2b9208c8a6b54a55c98d4035095cd4ff6ebcd447.gz
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Added stream input routines for some CarpetLib containers.
The regridder now has to explicitly say which boundaries are outer,
and which are internal. This will make outer boundaries on fine grid
possible, and is also necessary when there are multiple grid patches.
Started to add support for arbitrariliy many user-specified refinement
regions. Not yet finished.
The Carpet driver can now handle multiple grid patches.
Added example files for multiple grid patches. They use initial data
that does not "fit" the boundary conditions, and they don't use
multiple refinement levels so far.
Removed old and unused example files in CarpetLib.
darcs-hash:20020311121709-07bb3-18594c42bd7a958ee0840d29e158a343208f5711.gz
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Allow grid extents to be specified by integer grid point locations as
well as by physical coordinates.
darcs-hash:20020111163713-07bb3-fa1a86617d4805de7faba76ee1612f36d3a41b6d.gz
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Restructured regridding. Instead of registering the new grid
structure every time you want to regrid, you register a routine that
is called every time it is possible to regrid. This is much cleaner.
darcs-hash:20020111161945-07bb3-a03d269b8a81c5cc3e7196679535c3a4c21b3a78.gz
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Pulled regridding out of the driver proper.
Added automatic refinement, aka AMR.
darcs-hash:20011214153438-07bb3-6f2c0edd77e1cfc8e93bbbcfcc95e11ea7ee17f1.gz
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darcs-hash:20010301114010-f6438-12fb8a9ffcc80e86c0a97e37b5b0dae0dbc59b79.gz
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