CarpetTracker: New thorn

Track objects using SphericalSurface information and move the refined
regions accordingly.  This thorn relies on CarpetRegrid2.

darcs-hash:20060417221852-dae7b-b25e67ddd6f45dd2326ad34704f909b6ee626ffb.gz

8 files changed, 612 insertions, 0 deletions

diff --git a/Carpet/CarpetTracker/COPYING b/Carpet/CarpetTracker/COPYING
new file mode 100644
index 000000000..1942c4334
--- /dev/null
+++ b/Carpet/CarpetTracker/COPYING
@@ -0,0 +1,341 @@
+		    GNU GENERAL PUBLIC LICENSE
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diff --git a/Carpet/CarpetTracker/README b/Carpet/CarpetTracker/README
new file mode 100644
index 000000000..798c9445d
--- /dev/null
+++ b/Carpet/CarpetTracker/README
@@ -0,0 +1,8 @@
+Cactus Code Thorn CarpetTracker
+Thorn Author(s)     : Erik Schnetter <schnetter@cct.lsu.edu>
+Thorn Maintainer(s) : Erik Schnetter <schnetter@cct.lsu.edu>
+--------------------------------------------------------------------------
+
+Purpose of the thorn:
+
+Track black holes and update the location of the refinement regions.
diff --git a/Carpet/CarpetTracker/doc/documentation.tex b/Carpet/CarpetTracker/doc/documentation.tex
new file mode 100644
index 000000000..a43460f4b
--- /dev/null
+++ b/Carpet/CarpetTracker/doc/documentation.tex
@@ -0,0 +1,144 @@
+% *======================================================================*
+%  Cactus Thorn template for ThornGuide documentation
+%  Author: Ian Kelley
+%  Date: Sun Jun 02, 2002
+%  $Header: /cactusdevcvs/Cactus/doc/ThornGuide/template.tex,v 1.12 2004/01/07 20:12:39 rideout Exp $
+%
+%  Thorn documentation in the latex file doc/documentation.tex
+%  will be included in ThornGuides built with the Cactus make system.
+%  The scripts employed by the make system automatically include
+%  pages about variables, parameters and scheduling parsed from the
+%  relevant thorn CCL files.
+%
+%  This template contains guidelines which help to assure that your
+%  documentation will be correctly added to ThornGuides. More
+%  information is available in the Cactus UsersGuide.
+%
+%  Guidelines:
+%   - Do not change anything before the line
+%       % START CACTUS THORNGUIDE",
+%     except for filling in the title, author, date, etc. fields.
+%        - Each of these fields should only be on ONE line.
+%        - Author names should be separated with a \\ or a comma.
+%   - You can define your own macros, but they must appear after
+%     the START CACTUS THORNGUIDE line, and must not redefine standard
+%     latex commands.
+%   - To avoid name clashes with other thorns, 'labels', 'citations',
+%     'references', and 'image' names should conform to the following
+%     convention:
+%       ARRANGEMENT_THORN_LABEL
+%     For example, an image wave.eps in the arrangement CactusWave and
+%     thorn WaveToyC should be renamed to CactusWave_WaveToyC_wave.eps
+%   - Graphics should only be included using the graphicx package.
+%     More specifically, with the "\includegraphics" command.  Do
+%     not specify any graphic file extensions in your .tex file. This
+%     will allow us to create a PDF version of the ThornGuide
+%     via pdflatex.
+%   - References should be included with the latex "\bibitem" command.
+%   - Use \begin{abstract}...\end{abstract} instead of \abstract{...}
+%   - Do not use \appendix, instead include any appendices you need as
+%     standard sections.
+%   - For the benefit of our Perl scripts, and for future extensions,
+%     please use simple latex.
+%
+% *======================================================================*
+%
+% Example of including a graphic image:
+%    \begin{figure}[ht]
+% 	\begin{center}
+%    	   \includegraphics[width=6cm]{MyArrangement_MyThorn_MyFigure}
+% 	\end{center}
+% 	\caption{Illustration of this and that}
+% 	\label{MyArrangement_MyThorn_MyLabel}
+%    \end{figure}
+%
+% Example of using a label:
+%   \label{MyArrangement_MyThorn_MyLabel}
+%
+% Example of a citation:
+%    \cite{MyArrangement_MyThorn_Author99}
+%
+% Example of including a reference
+%   \bibitem{MyArrangement_MyThorn_Author99}
+%   {J. Author, {\em The Title of the Book, Journal, or periodical}, 1 (1999),
+%   1--16. {\tt http://www.nowhere.com/}}
+%
+% *======================================================================*
+
+% If you are using CVS use this line to give version information
+% $Header: /cactusdevcvs/Cactus/doc/ThornGuide/template.tex,v 1.12 2004/01/07 20:12:39 rideout Exp $
+
+\documentclass{article}
+
+% Use the Cactus ThornGuide style file
+% (Automatically used from Cactus distribution, if you have a
+%  thorn without the Cactus Flesh download this from the Cactus
+%  homepage at www.cactuscode.org)
+\usepackage{../../../../doc/latex/cactus}
+
+\begin{document}
+
+% The author of the documentation
+\author{Erik Schnetter \textless schnetter@cct.lsu.edu\textgreater}
+
+% The title of the document (not necessarily the name of the Thorn)
+\title{CarpetTracker}
+
+% the date your document was last changed, if your document is in CVS,
+% please use:
+%    \date{$ $Date: 2004/01/07 20:12:39 $ $}
+\date{February 20, 2006}
+
+\maketitle
+
+% Do not delete next line
+% START CACTUS THORNGUIDE
+
+% Add all definitions used in this documentation here
+%   \def\mydef etc
+
+% Add an abstract for this thorn's documentation
+\begin{abstract}
+
+\end{abstract}
+
+% The following sections are suggestive only.
+% Remove them or add your own.
+
+\section{Introduction}
+
+\section{Physical System}
+
+\section{Numerical Implementation}
+
+\section{Using This Thorn}
+
+\subsection{Obtaining This Thorn}
+
+\subsection{Basic Usage}
+
+\subsection{Special Behaviour}
+
+\subsection{Interaction With Other Thorns}
+
+\subsection{Examples}
+
+\subsection{Support and Feedback}
+
+\section{History}
+
+\subsection{Thorn Source Code}
+
+\subsection{Thorn Documentation}
+
+\subsection{Acknowledgements}
+
+
+\begin{thebibliography}{9}
+
+\end{thebibliography}
+
+% Do not delete next line
+% END CACTUS THORNGUIDE
+
+\end{document}
diff --git a/Carpet/CarpetTracker/interface.ccl b/Carpet/CarpetTracker/interface.ccl
new file mode 100644
index 000000000..a484d7a55
--- /dev/null
+++ b/Carpet/CarpetTracker/interface.ccl
@@ -0,0 +1,5 @@
+# Interface definition for thorn CarpetTracker
+
+IMPLEMENTS: CarpetTracker
+
+INHERITS: SphericalSurface CarpetRegrid2
diff --git a/Carpet/CarpetTracker/param.ccl b/Carpet/CarpetTracker/param.ccl
new file mode 100644
index 000000000..532e81801
--- /dev/null
+++ b/Carpet/CarpetTracker/param.ccl
@@ -0,0 +1,33 @@
+# Parameter definitions for thorn CarpetTracker
+
+
+
+CCTK_INT surface[3] "Spherical surface index which is the source for the location of the refine regions" STEERABLE=always
+{
+  -1  :: "disabled"
+  0:* :: "active"
+} -1
+
+
+
+SHARES: SphericalSurface
+
+USES CCTK_INT nsurfaces
+
+
+
+#SHARES: CarpetRegrid2
+#
+#USES CCTK_INT num_centres
+#
+#USES CCTK_REAL position_x_1
+#USES CCTK_REAL position_y_1
+#USES CCTK_REAL position_z_1
+#
+#USES CCTK_REAL position_x_2
+#USES CCTK_REAL position_y_2
+#USES CCTK_REAL position_z_2
+#
+#USES CCTK_REAL position_x_3
+#USES CCTK_REAL position_y_3
+#USES CCTK_REAL position_z_3
diff --git a/Carpet/CarpetTracker/schedule.ccl b/Carpet/CarpetTracker/schedule.ccl
new file mode 100644
index 000000000..9d560a266
--- /dev/null
+++ b/Carpet/CarpetTracker/schedule.ccl
@@ -0,0 +1,9 @@
+# Schedule definitions for thorn CarpetTracker
+
+
+
+SCHEDULE CarpetTracker_SetPositions AT prestep
+{
+  LANG: C
+  OPTIONS: global
+} "Set positions of refined regions"
diff --git a/Carpet/CarpetTracker/src/SetPositions.cc b/Carpet/CarpetTracker/src/SetPositions.cc
new file mode 100644
index 000000000..1eddbecc2
--- /dev/null
+++ b/Carpet/CarpetTracker/src/SetPositions.cc
@@ -0,0 +1,65 @@
+#include <cassert>
+#include <sstream>
+#include <string>
+
+#include "cctk.h"
+#include "cctk_Arguments.h"
+#include "cctk_Parameters.h"
+
+
+
+namespace CarpetTracker {
+
+using namespace std;
+  
+  
+  
+  extern "C" {
+    void
+    CarpetTracker_SetPositions (CCTK_ARGUMENTS);
+  }
+  
+  
+  
+  void
+  SetParameter (char const * const dir, int const n, CCTK_REAL const pos)
+  {
+    ostringstream name_buf;
+    name_buf << "position_" << dir << "_" << n + 1;
+    string const name (name_buf.str());
+    ostringstream pos_buf;
+    pos_buf << pos;
+    string const pos_str (pos_buf.str());
+    int const ierr =
+      CCTK_ParameterSet (name.c_str(), "CarpetRegrid2", pos_str.c_str());
+    assert (not ierr);
+  }
+  
+  
+  
+  void
+  CarpetTracker_SetPositions (CCTK_ARGUMENTS)
+  {
+    DECLARE_CCTK_ARGUMENTS;
+    DECLARE_CCTK_PARAMETERS;
+    
+    for (int n = 0; n < 3; ++ n) {
+      int const sn = surface[n];
+      if (sn >= 0) {
+        assert (sn >= 0 and sn < nsurfaces);
+        
+        CCTK_VInfo (CCTK_THORNSTRING,
+                    "Setting position of refined region #%d from surface #%d to (%g,%g,%g)",
+                    n + 1, sn,
+                    static_cast <double> (sf_origin_x[sn]),
+                    static_cast <double> (sf_origin_y[sn]),
+                    static_cast <double> (sf_origin_z[sn]));
+        SetParameter ("x", n, sf_origin_x[sn]);
+        SetParameter ("y", n, sf_origin_y[sn]);
+        SetParameter ("z", n, sf_origin_z[sn]);
+        
+      } // if
+    } // for
+  }
+  
+} // namespace CarpetTracker
diff --git a/Carpet/CarpetTracker/src/make.code.defn b/Carpet/CarpetTracker/src/make.code.defn
new file mode 100644
index 000000000..6c074794a
--- /dev/null
+++ b/Carpet/CarpetTracker/src/make.code.defn
@@ -0,0 +1,7 @@
+# Main make.code.defn file for thorn CarpetTracker
+
+# Source files in this directory
+SRCS = SetPositions.cc
+
+# Subdirectories containing source files
+SUBDIRS =