| Commit message (Collapse) | Author | Age |
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Use set instead of list to store registered gh, dh, th, gf, data.
Do not store an iterator as handle for de-registering.
This corrects some memory corruption with the Intel compiler; the previous code may have been illegal.
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Store the current Cactus time (and not a fake Carpet time) in the th
"time hiearchy". This removes the now redundant "leveltimes" data
structure in Carpet.
Add past time levels to th, so that it can store the time for past
time levels instead of assuming the time step size is constant. This
allows changing the time step size during evolution.
Share the time hierarchy between all maps, instead of having one time
hierarchy per map.
Simplify the time level cycling and time stepping code used during
evolution.
Improve structure of the code that loops over time levels for certain
schedule bins. Introduce a new Carpet variable "timelevel", similar
to "reflevel".
This also makes it possible to avoid time interpolation for the past
time levels during regridding. The past time levels of the fine grid
then remain aligned (in time) with the past time levels of the coarse
grid. This is controlled by a new parameter
"time_interpolation_during_regridding", which defaults to "yes" for
backwards compatibility.
Simplify the three time level initialisation. Instead of initialising
all three time levels by taking altogether three time steps (forwards
and backwards), initialise only one past time level by taking one time
step backwards. The remaining time level is initialised during the
first time step of the evolution, which begins by cycling time levels,
which drops the non-initialised last time level anyway.
Update Carpet and the mode handling correspondingly.
Update the CarpetIOHDF5 checkpoint format correspondingly.
Update CarpetInterp, CarpetReduce, and CarpetRegrid2 correspondingly.
Update CarpetJacobi and CarpetMG correspondingly.
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Ignore-this: 309b4dd613f4af2b84aa5d6743fdb6b3
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Add an overloaded function memoryof which measures the size in bytes
of CarpetLib's data structures.
darcs-hash:20080202154302-dae7b-de41c79cb04617327695fae27928c05c5d431ee8.gz
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Define a macro AT() to index into std::vector. Depending on the macro
NDEBUG, AT() is defined either as at(), providing index checking, or
as operator[], providing no checking.
darcs-hash:20070203205854-dae7b-a1999c88c95ba12b1ee66505f712aefdd67d7e6f.gz
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Split recompose functions into two stages, regrid and recompose. The
first stage, regrid, changes the grid structure in the gh and dh
classes. The second stage, recompose, changes the values of the
actual grid functions, i.e., changes the gf<T> and data<T> objects.
The second stage has to be called individually for every refinement
level.
This is necessary since the boundary conditions need to be applied
after recomposing one refinement level, before the next fine
refinement level can be recomposed.
darcs-hash:20060904230433-dae7b-3ba1982460f57b34da11a6fbb6b4b524dc5b348f.gz
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Add support for varying refinement factors. The spatial refinement
factors can be different in different directions, can be different
from the time refinement factor, and can be different on each level.
(However, the underlying spatial transport operators do currently not
handle any factors except two.)
darcs-hash:20050501205010-891bb-8d3a74abaad55ee6c77ef18d51fca2a2b69740de.gz
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darcs-hash:20050201231759-891bb-db87543a706110d2cd819a7f38c1e67cf27e16a3.gz
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Change the way in which the grid hierarchy is stored. The new hierarchy is
map
mglevel
reflevel
component
timelevel
i.e., mglevel moved from the bottom to almost the top. This is
because mglevel used to be a true multigrid level, but is now meant to
be a convergence level.
Do not allocate all storage all the time. Allow storage to be
switched on an off per refinement level (and for a single mglevel,
which prompted the change above). Handle storage management with
CCTK_{In,De}creaseGroupStorage instead of
CCTK_{En,Dis}ableGroupStorage.
darcs-hash:20050201225827-891bb-eae3b6bd092ae8d6b5e49be84c6f09f0e882933e.gz
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darcs-hash:20050101191615-891bb-20b262ff1a4468d5e1c5ac8626a3ead0727c2da9.gz
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Turn most of the templates in CarpetLib, which used to have the form
template<int D> class XXX
into classes, i.e., into something like
class XXX
by setting D to the new global integer constant dim, which in turn is set to 3.
The templates gf and data, which used to be of the form
template<typename T, int D> class XXX
are now of the form
template<typename T> class XXX
The templates vect, bbox, and bboxset remain templates.
This change simplifies the code somewhat.
darcs-hash:20050101182234-891bb-c3063528841f0d078b12cc506309ea27d8ce730d.gz
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darcs-hash:20050101162121-891bb-ac9d070faecc19f91b4b57389d3507bfc6c6e5ee.gz
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That is, say e.g. <cmath> instead of <math.h>.
darcs-hash:20041225182902-891bb-2a4502d6a76ed830ab978030fc4e4765b183509f.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:20040323173014-07bb3-e99c8937bf04a64b17c5f0c94caaa618143dd48b.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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darcs-hash:20030810195845-07bb3-f96960adb07b21f8a202fcf673389c21aa516095.gz
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darcs-hash:20030810195309-07bb3-b72a129026bf8d159cfaafaf3ee0b78212596d7f.gz
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Removed the "dimgeneric_*" data types from CarpetLib. They were never
really used anyway.
Changed "th" into "th<D>".
Renamed "generic_*" to "g*".
Propagated these changes to all other places.
darcs-hash:20030103144936-07bb3-c4d74d2d94a56a898f9bb735666eefc01e2610e2.gz
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darcs-hash:20020925175408-07bb3-3a5085b3148aa5d51bcf34743cdc5b3b7f7eeb63.gz
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Changed the variable types for the time from int to real. This allows
more flexibility for time interpolation.
The time interpolators now accept an explicit argument for the current
time, instead of using the current time from the time hierarchy. This
allows arbitrary current times, which are necessary for the
intermediate time steps for time interpolators. The times that are
interpolated _from_ still come from the time hierarchy.
darcs-hash:20020925134915-07bb3-26927a425ca5c0b52a2ca02bc54673c4b9e1781e.gz
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Removed user choice of C++ template instantiation model. In my
experience, only one model works, namely explicit template
instantiaion. No need to pretend that the other things work with
Cactus.
(Don't complain to me -- I also think it's a shame that something that
calls itself "compiler" isn't able to do this automatically. Many
other compilers for many other languages do this kind of thing without
even mentioning it. So there's either something fundamentally wrong
with the C++ standard, or with the C++ compiler writers, or with the
perceived wishlists of C++ users. And I would bet an arm and a leg
that it's not the second of these.)
darcs-hash:20020505201656-07bb3-a1b8dfc5587d59c718ad25ce89d0c8973c2b3e6f.gz
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Changed handling of interpolation orders; they are now stored in the
grid functions and don't have to be passed around.
Speeded up some prolongation operators. They are still slow.
darcs-hash:20011209154308-07bb3-caa74a89a87c290852f2b59160ed26d9361f3cf1.gz
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Introduced abstraction classes that have no <dim> parameter. This
will make it easier to adapte the driver to support multiple
dimensions at once.
darcs-hash:20010612125655-07bb3-1cba35eb867eca1234b3a40bd7a5641b64776c50.gz
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darcs-hash:20010327202631-f6438-d70466b15bf2224f3ce20968622c77a3cca37a73.gz
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Brought in latest differences from the SGI version. This is work
towards a code that compiles on both architectures.
darcs-hash:20010322174200-f6438-23ab5f26cf84d2666312791c6bdb5a0fc1d0390a.gz
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darcs-hash:20010319203019-f6438-339bf469c6734d21a44ecb7475c7d5d05e6b13fd.gz
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darcs-hash:20010301124010-f6438-fca5ed1e25f84efd816aa0d13fc23b58add7195d.gz
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darcs-hash:20010301114010-f6438-12fb8a9ffcc80e86c0a97e37b5b0dae0dbc59b79.gz
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