[Commits] [svn:einsteintoolkit] Paper_EinsteinToolkit_2010/ (Rev. 276)

[schnetter at cct.lsu.edu]

User: eschnett
Date: 2012/03/12 09:14 AM

Modified:
 /
  ET.tex

Log:
 Describe all systems used in our benchmark

File Changes:

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

File [modified]: ET.tex
Delta lines: +32 -2
===================================================================
--- ET.tex	2012-03-12 04:13:58 UTC (rev 275)
+++ ET.tex	2012-03-12 14:14:10 UTC (rev 276)
@@ -527,9 +527,36 @@
     better (the ideal scaling is a horizontal line). This
     demonstrates excellent scalability to up to more than 10,000
     cores. Including hydrodynamics approximately doubles
-    calculation times without negatively influencing scalability.}
+    calculation times without negatively influencing scalability.
+    The characteristics of the systems used in this benchmark are
+    described in table \ref{tab:weak-scaling}.}
   \label{fig:weak-scaling}
 \end{figure}
+\begin{table}
+  {
+    \small
+    \centering
+    \begin{tabular}{lll|rrr}
+      Name & Architecture (CPU) & Interconnect & nodes & cores/ & CPU
+      freq. \\
+      & & & & node & \\\hline
+      Franklin (NERSC) & Cray XT4 (AMD) & SeaStar2 & 8502 & 4 & 2.3
+      GHz \\
+      HLRB II (LRZ Munich) & SGI Altix (Itanium) & NUMAlink & 1 & 9728
+      & 1.6 GHz \\
+      Kraken (NICS) & Cray XT5 (AMD) & SeaStar & 9408(?) & 12 & 2.6
+      GHz \\
+      Queen Bee (LONI) & Intel cluster & InfiniBand & 668(?) & 8 &
+      2.33 GHz \\
+      Ranger (TACC) & AMD cluster & InfiniBand & 1888 & 16 & 2.3 GHz
+      \\
+    \end{tabular}
+  }
+\caption{Characteristics of the systems used in the benchmark figure
+  \ref{fig:weak-scaling}. These systems represent a wide range of HPC
+  architectures that were available over the past years.}
+\label{tab:weak-scaling}
+\end{table}
 Figure \ref{fig:weak-scaling} shows a weak scaling test of \texttt{Carpet},
 where \texttt{McLachlan} (see section \ref{sec:Kevol} below) solves
 the Einstein equations evolving a Minkowski spacetime on a grid structure with
@@ -2240,7 +2267,9 @@
 \codename{Cartoon2D} allows fully
 three dimensional codes to be used in axisymmetric problems by evolving
 a slice in the $y=0$ plane and using the rotational symmetry to populate
-ghost points off the plane (see Figure~\ref{fig:cartoon-plane}). 
+ghost points
+\todo{ES: this is the first mention of ``ghost''}
+off the plane (see Figure~\ref{fig:cartoon-plane}). 
 \begin{figure}[htbp]
     \begin{center}
         \includegraphics[width=0.2\textwidth]{cartoon_plane}
@@ -2343,6 +2372,7 @@
     \caption{Grid layout created by \codename{CarpetRegrid2}. In this
     example we use one ghost point, one boundary point, and two buffer 
     points
+    \todo{ES: this is the first (and only) mention of ``buffer points''}
     as well as \codename{RotatingSymmetry180}. There are two refinement
     levels present, a coarse one represented by big red circles and a
     fine one represented by small black circles. The