[Commits] [svn:einsteintoolkit] Paper_EinsteinToolkit_2010/ (Rev. 203)
knarf at cct.lsu.edu
knarf at cct.lsu.edu
Mon Nov 14 00:53:28 CST 2011
User: knarf
Date: 2011/11/14 12:53 AM
Modified:
/
ET.tex
Log:
cosmetics in Simfactory section
File Changes:
Directory: /
============
File [modified]: ET.tex
Delta lines: +12 -12
===================================================================
--- ET.tex 2011-11-14 06:48:06 UTC (rev 202)
+++ ET.tex 2011-11-14 06:53:27 UTC (rev 203)
@@ -516,10 +516,10 @@
their hardware configuration, available software, directory structure,
queueing system, queuing policy, and many other user-visible
properties. In addition, the system architectures and user interfaces
-offered by supercomputers are very different to those offered by
+offered by supercomputers are very different from those offered by
laptops or workstations. This makes performing large,
-three-dimensional time-dependent simulations a complex and time
-consuming task with a steep learning curve. However, most of these
+three-dimensional time-dependent simulations a complex, time-consuming
+and difficult task. However, most of these
differences are only superficial, and the basic capabilities of
supercomputers are very similar; most of the complexity of managing
simulations lies in menial tasks that require no physical or numerical
@@ -528,16 +528,16 @@
The Simulation Factory~\cite{Thomas:2010aa, SimFactory:web} offers a
set of abstractions for the tasks necessary to set up and successfully
complete numerical simulations based on the {\tt Cactus} framework. These
-abstractions hide tedious low-level management operations, they
-capture ``best practices'' of experienced users, and they create a log
+abstractions hide tedious low-level management operations,
+capture ``best practices'' of experienced users, and create a log
trail ensuring repeatable and well-documented scientific results.
-Using these abstractions, most operations are much simplified, many
+Using these abstractions, most operations are simplified and many
types of potentially disastrous user errors are avoided, allowing different
supercomputers to be used in a uniform manner.
-Using the Simulation Factory, we are able to offer a
-tutorial for the Einstein Toolkit~\cite{EinsteinToolkit:web} that lets
-new users download, configure, build, and run full simulations of the
+Using the Simulation Factory, we offer a
+tutorial for the Einstein Toolkit~\cite{EinsteinToolkit:web} that teaches
+new users how to download, configure, build, and run full simulations of the
coupled Einstein/relativistic hydrodynamics equations on a
supercomputer with a few simple commands. Users need no prior
knowledge about either the details of the architecture of a
@@ -551,12 +551,12 @@
%RH: any of the itemize, decription, enumerate environments indents its body
%by the same amount as \parindent
\begin{description}
-\item[Remote Access] The actual access commands and authentication
+\item[1. Remote Access.] The actual access commands and authentication
methods differ between systems, as do the user names that a person
has on different systems. Some systems are not directly
accessible, and one must log in to a particular ``trampoline''
server first. The Simulation Factory hides this complexity.
-\item[Configuring and Building] Building {\tt Cactus} requires certain
+\item[2. Configuring and Building.] Building {\tt Cactus} requires certain
software on the system, such as compilers, libraries, and build
tools. Many systems offer different versions of these, which may
be installed in non-default locations. Finding a working combination
@@ -566,7 +566,7 @@
this information. In many cases, this allows people to begin to use
a new machine in a very short time with just a few, simple
commands.
-\item[Submitting and Managing Simulations] Many simulations run for
+\item[3. Submitting and Managing Simulations.] Many simulations run for
days or weeks, requiring frequent checkpointing and job
re-submission because of short queue run-time limits. Simple user
errors in these menial tasks can potentially destroy weeks of
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