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darcs-hash:20050209223915-891bb-4c4001d07890086e95de8d5a91deffc66c32e469.gz
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darcs-hash:20050209222027-891bb-e8501dfa40575303af1338c1d2d4528d08ea273c.gz
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darcs-hash:20050127104948-891bb-214d1033924b4db7a215a624eb337f8a619ac82d.gz
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darcs-hash:20050101162121-891bb-ac9d070faecc19f91b4b57389d3507bfc6c6e5ee.gz
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darcs-hash:20041225183147-891bb-84276981b1deab37af4c3b541f993e62d63200e6.gz
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Replace all CVS header tags with the standard "$Header:$".
darcs-hash:20040918132147-891bb-dea889bdd94a479ec412d14d08e9efca63e5c24d.gz
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Explain the harmless compiler warnings about array indices out of
range.
darcs-hash:20040814054125-07bb3-232abf6b8906138d6b7425e2ec05feca8eac2368.gz
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darcs-hash:20040527102609-07bb3-8a80ea8a94dc7739da7e482ae925beb4a01585c3.gz
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darcs-hash:20040504201207-07bb3-b8a9db665cc225198475179abc2d2e6bcd7f2b2f.gz
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darcs-hash:20040418112556-07bb3-87cca0e1b0860665e56b2a729a06baba55fa5580.gz
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darcs-hash:20040311110413-07bb3-71275d869ab76640be38effb5f04522f0dcbef6c.gz
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darcs-hash:20040227092523-07bb3-e4cc3ad72fab0773cc5f42d1af3a27cf61d01545.gz
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darcs-hash:20040218141045-07bb3-0e60f56d44aa61e0e3190d5d27b9a0bfab3f2d38.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:20031113150358-07bb3-427886aab7c861fe53bf7fef96ec2a31e1d155f5.gz
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Many changes that accumulated while Cactus and Carpet diverged.
Add processor splitting mechanism "along-dir" that splits along a
specified direction.
Rename group PostRestrict to bin POSTRESTRICT.
Prolongate initial data only when desired. This saves much time.
Sorry, Ian.
Fix bug in time level cycling of grid arrays. (Note: grid arrays
should not have time levels.)
Fix time_t bug on IRIX.
Make sure that there is no integer overflow when there are many
refinement levels. Always put parentheses around
(maxreflevelfact/reflevelfact).
Fix typo in Carpet verbose output.
Add debug output in processor splitting.
Communicate in three stages: Irecv, (work), Isend, Wait. This might
be more efficient. Much more, potentially.
Fix bug in processor layout of grid arrays. Sorry, Ian.
Make the interpolator interpolate between time levels. Untested.
Fix bug in processor communication in interpolator. Sorry, Ian.
Rewrite prolongation operators to make them twice as fast. There you
are, Ian.
Move prolongation operator kind handling from data to gdata.
Add official hyperslabbing interfaces to CarpetSlab.
Adapt to new cGH * handling.
darcs-hash:20031105151837-07bb3-758a87ff0355dba053269df4b7d7d79bea018669.gz
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Fix bug.
Remove duplicate functions.
darcs-hash:20030828190727-07bb3-ec3abefc3438a4822d11d3ff43587a0968e9a2a9.gz
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darcs-hash:20030815073254-07bb3-d964703599463eb0657c0d6c6a00d3450fc3c31d.gz
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Add doxygen documentation.
Doxygen is great. Forget grdoc. Forget you even ever heard its name.
darcs-hash:20030803142621-07bb3-e18d0b14080698cd6ddbe94deb678ce0a29fd339.gz
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darcs-hash:20030717134028-07bb3-e4bead1009c4fa048004145ccb0c302f395d3d1d.gz
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bboxset.cc: Output setsize as well.
dh.cc: Add #warning statements where future improvements might be
necessary.
dh.cc: Allow prolongation bbox set with more than one element.
dh.cc: Normalise the bbox sets for the prolongation and boundary
prolongation.
dh.hh: Add a comment regarding what is synced and what not.
ggf.cc: Add #warning statement where future improvements might be
necessary.
vect.cc: Instantiate vect<bool,3>.
vect.hh: vect::replace is const.
darcs-hash:20030326163443-07bb3-3b2f685d3fd928e5a0b75a633aff5a67bf54bf47.gz
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Add normalize routine to normalise bboxsets. This isn't perfect yet,
i.e. it still misses some cases.
Fix bug in calculating the regions that should be restricted to:
exclude all regions used as source for boundary prolongations, even if
these prolongations go to a different processor.
darcs-hash:20030318163025-07bb3-1cfed59a57c2db71d3dae5528e93a570ccb13101.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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New function "ifthen" that is similar to the operator ?:, except both
branches are evaluated.
darcs-hash:20021212133644-07bb3-d7eeab0abe7cf68454cfc52390b676345d88117c.gz
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darcs-hash:20021212115824-07bb3-14fbced08b5899548087d59eb6151d791ef37cb2.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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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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Further changes to make Carpet work with multiple multigrid levels.
Fixed one other nasty bug in a prolongation operator.
Optimised last remaining non-optimised prolongation operator.
darcs-hash:20020109164539-07bb3-6ebee1b591a732eb826557128a2a0bce38151ed1.gz
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Changed the ASCII output format due to popular demand. Now includes
physical time and physical coordinates instead of only indices.
darcs-hash:20020108110354-07bb3-15982730e02655f8249c809e3cf9703d0fb3f5c7.gz
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Added a bit of convenient functionality.
Fixed a few bugs that were uncovered by dynamic regridding.
darcs-hash:20011214153941-07bb3-c31c15cec651b5c3c992f529b7409c081fda5ba8.gz
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darcs-hash:20011205023155-07bb3-2b8f43070aac0e38ad0f896b6ae73c8baa7608af.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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Added constructor for vect from C array.
Removed file unneeded io.cc from compilation.
darcs-hash:20010317213756-f6438-dd749e08ef14cacea986f45209bc093ba5d180b1.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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