[Commits] [svn:einsteintoolkit] Paper_EinsteinToolkit_2010/ (Rev. 48)

[knarf at cct.lsu.edu]

User: knarf
Date: 2011/04/09 04:11 PM

Modified:
 /
  ET.tex

Log:
 expand introduction

File Changes:

Directory: /
============

File [modified]: ET.tex
Delta lines: +35 -11
===================================================================
--- ET.tex	2011-04-04 14:54:56 UTC (rev 47)
+++ ET.tex	2011-04-09 21:11:24 UTC (rev 48)
@@ -109,7 +109,7 @@
 Now is a particularly exciting time for numerical relativity and
 relativistic astrophysics. Recent computational
 breakthroughs~\cite{Pretorius:2005gq, Campanelli:2005dd, Baker:2005vv}
-have transformed the field with our ability to
+have transformed the field with the ability to
 effectively evolve the Einstein field equations for coalescing
 black hole binaries and other systems containing moving black holes.
 Following, and in part parallel to, these breakthroughs there have
@@ -132,23 +132,23 @@
 Pfeiffer:2007yz}. 
 
 It is remarkable that many of the successful techniques used to
-evolve binary BHs have proven equally applicable to merging BH-NS and
-NS-NS binaries, allowing for the first full GR simulations of
-these systems (e.g., 
+evolve binary BHs have proven to be equally applicable to merging BH-NS and
+NS-NS binaries, allowing for the first full GR simulations of these systems (e.g., 
 \cite{Shibata:2006bs,Shibata:2006ks,Loeffler06a,Shibata:2007zm,
-Etienne:2007jg,Baiotti:2008ra,Duez:2008rb}).
+Etienne:2007jg,Baiotti:2008ra,Duez:2008rb}), and spured a lot of activity
+also in this field~\todo{cite}.
 
-
-GRMHD on fixed background spacetimes has been carried out in multi-dimensional
+General relativistic magneto-hydrodynamics (GRMHD) on fixed background
+spacetimes has been carried out in multi-dimensional
 settings, focusing on BH accretion processes and relativistic jet
 production and evolution, and has yielded results since the mid 1990s
-(e.g., \cite{font:08}). On the other hand, GRMHD coupled with
+(e.g., \cite{font:08}\todo{cite more}). On the other hand, GRMHD coupled with
 curvature evolution, crucial for modeling large-scale bulk
 dynamics in compact binary or single-star collapse scenarios, has
 started to produce astrophysically interesting results only in the
 past $\sim 3-5$ years, enabled primarily by the availability of long-term
 stable curvature evolution systems as well as improved GRMHD
-algorithms \cite{font:08}.
+algorithms~\cite{font:08}\todo{cite more}.
 
 The first full GR simulations of merging NS-NS and/or BH-NS binaries
 have recently been carried out by groups at Tokyo University
@@ -171,9 +171,27 @@
 rapidly rotating polytropic \ns{} models have been carried out
 in full GR by Shibata~et~al.~\cite{shibata:00},
 Baiotti~et~al.~\cite{baiotti:07,manca:07}.
-
  
+In parallel to the advances in physical understanding and numerical techniques,
+a set of computational tools and libraries was developed, with the
+aim to provide a computational core that can enable the new science,
+broaden the community, facilitate interdisciplinary research and take
+advantage of emerging petascale computers and advanced cyberinfrastructure:
+the Cactus computational toolkit. While being developed to a large part by
+computer scientists, its development was driven by the direct input from other
+fields, especially numerical relativity, succeeding in applying expertise in
+computer science directly to problems in numerical relativity.
 
+This success spawned usage of the Cactus computational toolkit in other
+areas, such as hurricane forecast models. At the same time, the growing
+number of results in numerical relativity increased the need for commonly
+available utilities such as comparison and analysis tools, typically
+problem-specific to astrophysical problems. Including them within the
+Cactus computational toolkit didn't fit it's grown scope. This triggered
+the creation of the Einstein Toolkit. While large parts of the Einstein toolkit
+presently do make use of the Cactus toolkit, this is not an requirement at all,
+and other contributions are welcome and have been accepted.
+
 \section{Requirements\pages{2 Frank}}
 
 \subsection{Scientific}
@@ -652,6 +670,8 @@
 the \codename{TwoPunctures} module can also be used to construct neutron star
 black hole binary initial data, when being coupled with \codename{TOVSolver}.
 
+\subsection{Equation of States}\pages{1 Christian}
+
 \subsection{Spacetime Curvature and Hydrodynamics Evolution}
 \todo{Christian in charge}
 
@@ -1355,14 +1375,18 @@
 
 \section{Examples\pages{0.5 Frank}}
 
-\subsection{Vacuum\pages{2 Bruno}}
+\subsection{Spinning BH\pages{2 Bruno}}
 
+\subsection{BBH\pages{2 Bruno}}
+
 \subsection{TOV\pages{2 Frank}}
 Show stable TOV evolution
 
 \subsection{Collapse\pages{2 Christian}}
 Show TOV collapse and BH formation
 
+\subsection{Cosmology\pages{2 Eloisa}}
+Convergence
 
 \section{Future Work\pages{1 Frank}}
 This paper illustrated the current state of the ``Einstein Toolkit'',