User: gallen Date: 2011/11/14 11:22 AM

Modified: / ET.tex

Log: affiliation and word changes in intro

File Changes:

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

File [modified]: ET.tex Delta lines: +15 -14 =================================================================== --- ET.tex 2011-11-14 17:14:47 UTC (rev 233) +++ ET.tex 2011-11-14 17:22:34 UTC (rev 234) @@ -88,7 +88,7 @@ Bruno C. Mundim $^2$, Christian D. Ott $^{5,1,6}$, Erik Schnetter $^{7,8,1}$, -Gabrielle Allen $^1$, +Gabrielle Allen $^{1,9,10}$, Manuela Campanelli $^2$ and Pablo Laguna $^4$}

@@ -103,6 +103,8 @@ ON, Canada} \address{$^8$ Department of Physics, University of Guelph, Guelph, ON, Canada} +\address{$^9$ Department of Computer Science, Louisiana State University, Baton Rouge, LA, USA} +\address{$^{10}$ National Science Foundation, USA} \ead{knarf@cct.lsu.edu}

%\thanks{{}$^{(1)}$ Department of Computer Science, @@ -122,10 +124,10 @@ We describe the Einstein Toolkit, a community-driven, freely accessible computational infrastructure intended for use in numerical relativity, relativistic astrophysics, and other applications. The Toolkit, developed by a -collaboration involving researchers from several institutions around the world, +collaboration involving researchers from multiple institutions around the world, combines a core set of components needed to simulate astrophysical objects such as black holes, compact objects, and collapsing stars, as well as a full suite -of analysis tools. The Einstein Toolkit is based on the Cactus Framework for +of analysis tools. The Einstein Toolkit is currently based on the Cactus Framework for high-performance computing and the Carpet adaptive mesh refinement driver. It implements spacetime evolution via the BSSN evolution system and general-relativistic hydrodynamics in a finite-volume discretization. The @@ -157,13 +159,13 @@ in the study of astrophysical systems containing black holes (BHs) and neutron stars (NSs). The first fully general relativistic (GR) simulations of merging NS-NS binaries were reported in 1999, with further -advances for the next few years~\cite{Shibata:1999wm,Shibata:2002jb, +advances over the next few years~\cite{Shibata:1999wm,Shibata:2002jb, Shibata:2003ga,Shibata:2005ss,Shibata:2006nm}. However, systems containing BHs proved -much more difficult to track numerically until 2005. That year, computational -breakthroughs were made using a generalized harmonic formulation~\cite{Pretorius:2005gq} and then a ``moving puncture'' approach +much more difficult to evolve numerically until 2005. That year, computational +breakthroughs were made following the development of a generalized harmonic formulation~\cite{Pretorius:2005gq} and then a ``moving puncture'' approach \cite{Campanelli:2005dd, Baker:2005vv} in the BSSN (Baumgarte-Shapiro-Shibata-Nakamura) formalism~\cite{Shibata:1995we,Baumgarte:1998te} -that allowed for the first stable long-term evolutions of moving single +that lead to the first stable long-term evolutions of moving single and multiple BH systems. These results quickly transformed the field which was now able to effectively evolve the Einstein field equations for coalescing BH-BH binaries and other systems containing moving @@ -238,15 +240,14 @@

Simultaneously with the advances in both our physical understanding of relativistic dynamics and the numerical techniques required to study them, -a set of computational tools and libraries has been developed with the +a set of general computational tools and libraries has been developed with the aim of providing a computational core that can enable new science, -broaden the community, facilitate interdisciplinary research and take +broaden the community, facilitate collaborative and interdisciplinary research, promote software reuse and take advantage of emerging petascale computers and advanced cyberinfrastructure: -the Cactus computational toolkit~\cite{Cactuscode:web}. While it was -developed in large part by computer scientists, its development was driven by -direct input from other fields, especially numerical relativity, and has -succeeded in applying expertise in computer science directly to problems in -numerical relativity. +the Cactus computational toolkit~\cite{Cactuscode:web}. +Although the development of Cactus was driven directly from the numerical relativity community, it was developed in collaboration +with computer scientists and other computational fields to facilitate the incorporation of innovations in computational +theory and technology.

This success prompted usage of the {\tt Cactus} computational toolkit in other areas, such as ocean forecast models~\cite{Djikstra2005} and chemical reaction