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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@101 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@100 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@90 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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the commently-encountered-problem with a grid point at the origin,
and what to do about it
git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@89 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@80 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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(StaticConformal::conformal_state = 3) or a physical metric ( = 0),
as per
http://www.cactuscode.org/pipermail/developers/2005-July/001178.html
and subsequent discussion
git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@79 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@78 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@77 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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and outline of workarounds
git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@76 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@75 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@74 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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this thorn.
[Unforunately, for the reasons explained in today's E-mail discussion
on the developers@cactuscode.org mailing list, it's not practical for
me to break this up into multiple smaller single-purposed commits.]
param.ccl
* add comments
* add additional interpolator parameters (described in detail below)
* add "output psi on 2D grid" parameters (described in detail below)
* add debugging parameters
doc/documentation.tex
* add "IDAxiBrillBH/" prefix to make LaTeX labels unique across thorns
* correct a few typos
* clarify explanation of how we solve on a 2-D grid and then interpolate
to the Cactus 3-D grid
* explain the new interpolator and output-psi-on-2D-grid parameters
* add some comments on choosing the 2-D grid resolution parameters
* mention debug parameters
doc/TODO
* new file noting some problems with this thorn which I found, but
didn't fix
src/IDAxiBrillBH.F
* use new CCTK_WARN(CCTK_WARN_ABORT, ...) instead of old CCTK_WARN(0, ...)
* more flexible interpolator parameters:
This thorn first solves the Brill-wave equation on an internal
(axisymmetric) 2D grid, then uses uses the standard Cactus
CCTK_InterpLocalUniform() local-interpolator API to interpolate
this to the 3D grid points. Before this patch, this thorn
hard-wired the interpolation operator to "uniform cartesian",
only allowed orders 1, 2, and 3, and didn't allow any other
interpolator parameters to be set. This patch adds two new
parameters to allow any interpolation operator and parameters
to be specified. Either the old or the new parameters can be
used (see doc/documentation.tex for details of how this works);
the defaults leave the behavior of this thorn unchanged.
* add option to output psi on 2D grid
When using this thorn, I found it hard to choose the parameters
defining the resolution and extent of the internal 2D grid.
To help with this, I added an option to output the solution
on that grid to an ASCII data file, so it can be examined
and plotted.
* add debugging code
I've added debug options which, if enabled, print the values
of various internal quantities at specified 2D and/or 3D grid
points. I've left these in the final "production" code as
possibly being useful for future debugging.
* add many comments
* correct or remove some old comments which were out of date
* adjust whitespace to make the code a bit more readable:
I've changed code like
allocate(cc(neb,nqb),ce(neb,nqb),cw(neb,nqb),cn(neb,nqb),cs(neb,nqb),
$ rhs(neb,nqb),psi2d(neb,nqb),detapsi2d(neb,nqb),dqpsi2d(neb,nqb),
$ detaetapsi2d(neb,nqb),detaqpsi2d(neb,nqb),dqqpsi2d(neb,nqb),
$ etagrd(neb),qgrd(nqb))
to make it clearer which arrays have the same size:
allocate( cc(neb,nqb))
allocate( ce(neb,nqb))
allocate( cw(neb,nqb))
allocate( cn(neb,nqb))
allocate( cs(neb,nqb))
allocate( rhs(neb,nqb))
allocate( psi2d(neb,nqb))
allocate( detapsi2d(neb,nqb))
allocate( dqpsi2d(neb,nqb))
allocate(detaetapsi2d(neb,nqb))
allocate( detaqpsi2d(neb,nqb))
allocate( dqqpsi2d(neb,nqb))
allocate(etagrd(neb))
allocate( qgrd(nqb))
* change some Fortran write statements to CCTK_INFO
[so they're properly synchronized with output from C routines,
even when stdout+stderr are redirected to a log file]
* include more information about what went wrong, in various error messages
[eg if the interpolator returns an error code, the code
now includes that error code in the error message]
* rename a few variables to make their purpose clearer:
ep1 --> error_at_this_grid_point
ep2 --> max_error_in_grid
git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@69 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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(which I have _not_ fixed in my current set of commits)
git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@68 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@63 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@51 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@50 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@42 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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will recognize it.
Did some minor editing and clean up.
git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@37 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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included commits to RCS files with non-trunk default branches.
git-svn-id: http://svn.einsteintoolkit.org/cactus/EinsteinInitialData/IDAxiBrillBH/trunk@3 0a4070d5-58f5-498f-b6c0-2693e757fa0f
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