--- /dev/null
+\documentclass[hyperref={pdfpagelabels=false}]{beamer}
+%\documentclass{beamer}
+
+\mode<presentation>
+{
+ %\useinnertheme{echt}
+ %\useinnertheme{proef}
+ \usetheme{Recore}
+ \setbeamercovered{transparent}
+ \setbeamertemplate{footline}
+ {%
+ \leavevmode%
+ \hbox{\begin{beamercolorbox}[wd=.5\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm plus1fill,rightskip=.3cm]{author in head/foot}%
+ \usebeamerfont{author in head/foot}\insertshortauthor
+ \end{beamercolorbox}%
+ \begin{beamercolorbox}[wd=.4\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm plus1fil]{title in head/foot}%
+ \usebeamerfont{title in head/foot}\insertshorttitle
+ \end{beamercolorbox}%
+ \begin{beamercolorbox}[wd=.1\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm plus1fil]{title in head/foot}%
+ \usebeamerfont{title in head/foot} \insertframenumber-\inserttotalframenumber%\insertpagenumber-\insertpresentationendpage%Slide:\insertframenumber, Page:
+ \end{beamercolorbox}}%
+ \vskip0pt%
+}
+%\setbeamertemplate{footline}[frame number]
+}
+
+\usepackage[english]{babel}
+\usepackage[latin1]{inputenc}
+\usepackage{times}
+\usepackage[T1]{fontenc}
+\usepackage{acronym}
+\usepackage{tikz}
+\usepackage{multimedia}
+\usepackage{subfigure}
+\usepackage{booktabs}
+%For handouts, use the following two lines:
+%\usepackage{pgfpages}
+%\pgfpagesuselayout{2 on 1}[a4paper,border shrink=5mm]
+
+
+\title
+{Scalability issues of a Network-on-Chip}
+
+\author {David Bonfrer}
+
+\institute[Recore Systems and University of Twente]
+{
+ \inst{1}%
+ Recore Systems
+ \and
+ \inst{2}%
+ Faculty of Electrical Engineering, Mathematics and Computer Science\\
+ University of Twente
+ }
+
+\setbeamertemplate{navigation symbols}{}
+
+ \pgfdeclareimage[height=0.5cm]{recore_logo}{images/recore_logo}
+ \logo{\pgfuseimage{recore_logo}}
+
+
+
+\AtBeginSubsection[]
+{
+ \begin{frame}<beamer>{Outline}
+ \tableofcontents[currentsection,currentsubsection,hideothersubsections]
+ \end{frame}
+}
+
+
+
+\begin{document}
+
+\begin{frame}
+ \titlepage
+\end{frame}
+
+\begin{frame}{Contents}
+ \tableofcontents
+\end{frame}
+
+\section{Introduction}
+ \subsection{Low power usage}
+% \begin{frame}{PDA}
+% \begin{center}
+% \includegraphics[scale=.44]{images/pda3}
+% \end{center}
+% \end{frame}
+% \begin{frame}{SoC}
+% %Picture of SoC
+% \end{frame}
+% \begin{frame}{Annabelle \ac{SoC}}
+% \begin{center}
+% \includegraphics[scale=0.52]{images/reconfigurable_fabric}
+% \end{center}
+% \end{frame}
+% \begin{frame}{CRISP \ac{SoC}}
+% \begin{center}
+% \includegraphics[scale=.76]{images/CRISP}%TODO fix blue too black
+% \end{center}
+% \end{frame}
+\section{Problem description}
+ %Problem description
+\section{Architecture}
+ \begin{frame}
+ \begin{center}
+ \tikzstyle{help lines}=[black!10,thin]
+ \begin{tikzpicture}[>=stealth,scale=.7]
+ \foreach \x in {1,6,11}
+ \foreach \y in {5,0}{
+ \draw (\x,\y) +(-1,-1) rectangle ++(1,1)[draw=black!50,fill=black!20,thick];
+ \draw (\x,\y) node{Router};
+ \draw (\x,\y) +(.4,1.2) rectangle ++(1.4,1.8)[draw=black!50,fill=black!20,thick];
+ \draw (\x,\y) +(.9,1.5)node{Tile};
+ \foreach \z in {0,.1,.2,.3} \draw (\x,\y) ++(\z,0) ++(0.5,1) -- ++(0,0.2);
+ }
+ \foreach \x in {1,6}\foreach \y in {5,0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(1,\z) -- ++(4,\z);
+ \foreach \x in {1,6,11}\foreach \y in {0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(\z,1) -- ++(\z,4);
+ \foreach \x in {11}\foreach \y in {5,0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(1,\z) -- ++(1.5,\z);
+ \foreach \x in {1,6,11}\foreach \y in {5}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(\z,1) -- ++(\z,1.5);
+ \foreach \x in {1}\foreach \y in {5,0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(-1,\z) -- ++(-1.5,\z);
+ \foreach \x in {1,6,11}\foreach \y in {0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(\z,-1) -- ++(\z,-1.5);
+ \draw (4,5) circle (0.4) +(0,-0.4) -- (3,3.5) +(0,-0.2) node{Link};
+ \draw (2,0) circle (0.4) +(0,0.4) -- (4,1.5) +(0,0.2) node{Port};
+ \draw (9,4.9) circle (0.1) +(0,-0.1) -- (8,3.5) +(0,-0.2) node{Lane};
+ \end{tikzpicture}
+ \end{center}
+ \end{frame}
+ \begin{frame}{Circuit switched}
+ \begin{center}
+ \tikzstyle{help lines}=[black!10,thin]
+ \begin{tikzpicture}[>=stealth,scale=.6]
+ \foreach \x in {1,6,11}
+ \foreach \y in {5,0}{
+ \draw (\x,\y) +(-1,-1) rectangle ++(1,1)[draw=black!50,fill=black!20,thick];
+ \draw (\x,\y) node{Router};
+ \draw (\x,\y) +(.4,1.2) rectangle ++(1.4,1.8)[draw=black!50,fill=black!20,thick];
+ \draw (\x,\y) +(.9,1.5)node{Tile};
+ \foreach \z in {0,.1,.2,.3} \draw (\x,\y) ++(\z,0) ++(0.5,1) -- ++(0,0.2);
+ }
+ \foreach \x in {1,6}\foreach \y in {5,0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(1,\z) -- ++(4,\z);
+ \foreach \x in {1,6,11}\foreach \y in {0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(\z,1) -- ++(\z,4);
+ \foreach \x in {11}\foreach \y in {5,0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(1,\z) -- ++(1.5,\z);
+ \foreach \x in {1,6,11}\foreach \y in {5}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(\z,1) -- ++(\z,1.5);
+ \foreach \x in {1}\foreach \y in {5,0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(-1,\z) -- ++(-1.5,\z);
+ \foreach \x in {1,6,11}\foreach \y in {0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(\z,-1) -- ++(\z,-1.5);
+ \draw [very thick,->] (-1,0.2) -- (11.2,0.2) -- (11.2,4.9) -- (13,4.9);
+ \end{tikzpicture}
+ \end{center}
+ \end{frame}
+ \begin{frame}{Packet switched}
+ \begin{center}
+ \tikzstyle{help lines}=[black!10,thin]
+ \begin{tikzpicture}[>=stealth,scale=.6]
+ \foreach \x in {1,6,11}
+ \foreach \y in {5,0}{
+ \draw (\x,\y) +(-1,-1) rectangle ++(1,1)[draw=black!50,fill=black!20,thick];
+ \draw (\x,\y) node{Router};
+ \draw (\x,\y) +(.4,1.2) rectangle ++(1.4,1.8)[draw=black!50,fill=black!20,thick];
+ \draw (\x,\y) +(.9,1.5)node{Tile};
+ \foreach \z in {0,.1,.2,.3} \draw (\x,\y) ++(\z,0) ++(0.5,1) -- ++(0,0.2);
+ }
+ \foreach \x in {1,6}\foreach \y in {5,0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(1,\z) -- ++(4,\z);
+ \foreach \x in {1,6,11}\foreach \y in {0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(\z,1) -- ++(\z,4);
+ \foreach \x in {11}\foreach \y in {5,0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(1,\z) -- ++(1.5,\z);
+ \foreach \x in {1,6,11}\foreach \y in {5}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(\z,1) -- ++(\z,1.5);
+ \foreach \x in {1}\foreach \y in {5,0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(-1,\z) -- ++(-1.5,\z);
+ \foreach \x in {1,6,11}\foreach \y in {0}\foreach \z in {-0.1,0,0.1,0.2}\draw (\x,\y) +(\z,-1) -- ++(\z,-1.5);
+ \draw [very thick,->] (-1,0.2) -- (.8,0.2);
+ \draw [very thick,->] (1.2,0.2) -- (5.8,0.2);
+ \draw [very thick,->] (6.2,0.2) -- (10.8,0.2);
+ \draw [very thick,->] (11.2,0.5)-- (11.2,4.5);
+ \draw [very thick,->] (11.5,4.9)-- (13,4.9);
+ \end{tikzpicture}
+ \end{center}
+ \end{frame}
+ \begin{frame}{Router components}
+ \begin{center}
+ \tikzstyle{help lines}=[black!10,thin]
+ \begin{tikzpicture}[>=stealth,scale=.84]
+ \draw (-2.8,-1) rectangle ++(7.5,5);
+ \draw (1,3.75) node{Generic router};
+ \draw (.1,.1) rectangle ++(1.8,3);
+ \draw (1,2.75) node{Crossbar};
+ \foreach \x in {.1,2.6,2.0,1.4}{
+ \draw (2.1,\x) rectangle ++(2.5,.5);
+ \draw (2.1,\x) +(1.25,.25) node{Output buffer};
+ }
+ \foreach \x in {.8,1,1.2}{
+ \draw (2.1,\x) +(1.25,0) circle (0.05);
+ }
+ \foreach \x in {.1,2.6,2.0,1.4}{
+ \draw (-.1,\x) rectangle ++(-2.5,.5);
+ \draw (-.1,\x) +(-1.25,.25) node{Input buffer};
+ }
+ \foreach \x in {.8,1,1.2}{
+ \draw (-.1,\x) +(-1.25,0) circle (0.05);
+ }
+ \draw (.9,.1) -- (.9,-.1);
+ \draw (1.1,.1) -- (1.1,-.1);
+ \draw (0,-.1) rectangle (2,-.9);
+ \draw (1,-.5) node {Arbiter};
+ \foreach \x in {0.2,0.3,...,2.2}{
+ \draw (0.2,\x) -- (.1,\x);
+ \draw (1.9,\x) -- (1.8,\x);
+ }
+ \draw (.1,2.1) -- (.5,2.1);
+ \draw (.1,0.2) -- (.5,0.2);
+
+ \draw (1.5,2.1) -- (1.9,2.1);
+ \draw (1.5,0.2) -- (1.9,0.2);
+
+ \draw (-4.2,1.5) node {N inputs};
+ \draw (6.5,1.5) node {N outputs};
+
+ \draw (0.5,2.1) -- (1.5,0.2);
+ \draw (0.5,0.2) -- (1.5,2.1);
+ \draw (1.9,0.2) -- (2.1,.35);
+ \draw (1.9,2.1) -- (2.1,2.85);
+ \draw (1.9,2.0) -- (2.1,2.25);
+ \draw (1.9,1.9) -- (2.1,1.65);
+
+ \draw (.1,0.2) -- (-.1,.35);
+ \draw (.1,2.1) -- (-.1,2.85);
+ \draw (.1,2.0) -- (-.1,2.25);
+ \draw (.1,1.9) -- (-.1,1.65);
+
+
+ \draw [->] (4.5,0.35) -- (4.9,.35);
+ \draw [->] (4.5,2.85) -- (4.9,2.85);
+ \draw [->] (4.5,2.25) -- (4.9,2.25);
+ \draw [->] (4.5,1.65) -- (4.9,1.65);
+
+ \draw [<-] (-2.5,0.35) -- (-3,.35);
+ \draw [<-] (-2.5,2.85) -- (-3,2.85);
+ \draw [<-] (-2.5,2.25) -- (-3,2.25);
+ \draw [<-] (-2.5,1.65) -- (-3,1.65);
+ \end{tikzpicture}
+ \end{center}
+ \end{frame}
+ \begin{frame}{Flow control}
+ \begin{center}
+ \tikzstyle{help lines}=[black!10,thin]
+ \begin{tikzpicture}[>=stealth,scale=.5]
+ \draw[->] (.5,1) -- (9.5,1)node[above,midway]{Data valid};
+ \draw[<-] (.5,2) -- (9.5,2)node[above,midway]{Acknowledge};
+ \draw[->][very thick] (.5,3.5) -- (9.5,3.5) node[above,midway]{Data};
+ \end{tikzpicture}
+ \end{center}
+ \end{frame}
+\section{Results}
+ \subsection{Flow control}
+ \begin{frame}{Flow control}
+ \begin{itemize}
+ \item Different types of flow control:
+ \begin{itemize}
+ \item Direct flow control
+ \item Single register flow control
+ \item Double register flow control
+ \item Windowed transmission
+ \end{itemize}
+ \end{itemize}
+ \end{frame}
+ \subsection{Configuration network}
+% \begin{frame}{Configuration network}
+% \begin{center}
+% \includegraphics[trim = 10mm 200mm 100mm 20mm, clip, scale=.8]{images/d+c_router}
+% \end{center}
+% \end{frame}
+ \begin{frame}{Configuration network}
+ \begin{columns}
+ \column{.8\textwidth}
+ \begin{itemize}
+ \item The configuration network \ac{CSDCnet}:
+ \begin{itemize}
+ \item Pros:
+ \begin{itemize}
+ \item Easy configuration
+ \item Optimal config route
+ \item Small area needed on chip ($0.002 mm^2$)
+ \item High clock speed possible (1GHz)
+ \end{itemize}
+ \item Cons:
+ \begin{itemize}
+ \item Only configuration data.
+ \item Central control needed.
+ \item Long configuration times.
+ \end{itemize}
+ \end{itemize}
+ \end{itemize}
+ \column{.2\textwidth}
+ \begin{center}
+ \tikzstyle{place}=[circle,draw=blue!50,fill=blue!20,thick]
+ \tikzstyle{transition}=[rectangle,draw=black!50,fill=black!20,thick]
+ \begin{tikzpicture}[>=stealth,scale=.5,transform shape]
+ \node[place] (1) {};
+ \node[place] (2) [right of=1] {};
+ \node[place] (3) [right of=2] {};
+ \node[place] (4) [below of=1] {};
+ \node[place] (5) [right of=4] {};
+ \node[place] (6) [right of=5] {};
+ \node[place] (7) [below of=4] {};
+ \node[place] (8) [right of=7] {};
+ \node[place] (9) [right of=8] {};
+
+ \draw (1.east) -- (2.west);
+ \draw (2.east) -- (3.west);
+ \draw (4.east) -- (5.west);
+ \draw (5.east) -- (6.west);
+ \draw (7.east) -- (8.west);
+ \draw (8.east) -- (9.west);
+ \draw (1.south)-- (4.north);
+ \draw (2.south)-- (5.north);
+ \draw (3.south)-- (6.north);
+ \draw (4.south)-- (7.north);
+ \draw (5.south)-- (8.north);
+ \draw (6.south)-- (9.north);
+ \end{tikzpicture}
+ \end{center}
+ \end{columns}
+ \end{frame}
+ \begin{frame}{Configuring a NoC with CSDCnet}
+ \begin{itemize}
+ \item Configuration using relative addressing
+ \item Configuration using commands
+ \item Two states for CSDCrouters:
+ \begin{itemize}
+ \item \emph{passthrough mode}
+ \item \emph{execute command mode}
+ \end{itemize}
+ \end{itemize}
+ \end{frame}
+ \begin{frame}[shrink=33]{Commands of CSDCnet}
+ \vspace{2cm}
+ \begin{table}
+ \centering
+ \begin{tabular}{lll} \toprule
+ Command name & Command description & Parameters (Length in bits)\\
+ \midrule
+ CONFIG & Configure current data router & configuration data (11)\\
+ DESTROY & Destroy complete configuration path & -\\
+ EXTEND & Extend configuration path & direction to extend to (3)\\
+ REMOVE & Remove the last router from path & -\\
+ RESET\_ALL & Reset complete \acs{NoC} and all tiles & -\\
+ RESET\_TILE & Reset current tile & -\\
+ \bottomrule
+ \end{tabular}
+ \caption{Commands}
+ \label{tab:commandsLimited}
+ \end{table}
+ \end{frame}
+
+
+ \begin{frame}{Ring network}
+ \begin{columns}
+ \column{.8\textwidth}
+ \begin{itemize}
+ \item The ring network, from the University of Twente, can be used for configuration too:
+ \begin{itemize}
+ \item Pros:
+ \begin{itemize}
+ \item No setting up paths.
+ \item Not only configuration data.
+ \item Needs small area on chip ($0.003 mm^2$).
+ \item High clock speed possible (1GHz).
+ \item No central control of the network.
+ \end{itemize}
+ \item Cons:
+ \begin{itemize}
+ \item Routes not optimal.
+ \end{itemize}
+ \end{itemize}
+ \end{itemize}
+ \column{.2\textwidth}
+ \begin{center}
+ \tikzstyle{place}=[circle,draw=blue!50,fill=blue!20,thick]
+ \tikzstyle{transition}=[rectangle,draw=black!50,fill=black!20,thick]
+ \begin{tikzpicture}[>=stealth,scale=.4,transform shape]
+ \node[place] (1) at (-1,-2) {};
+ \node[place] (2) at ( 1,-2) {};
+ \node[place] (3) at ( 2,-1) {};
+ \node[place] (4) at ( 2, 1) {};
+ \node[place] (5) at ( 1, 2) {};
+ \node[place] (6) at (-1, 2) {};
+ \node[place] (7) at (-2, 1) {};
+ \node[place] (8) at (-2,-1) {};
+ \foreach \from/\to in {1/2,2/3,3/4,4/5,5/6,6/7,7/8,8/1}
+ \draw (\from) -- (\to);
+ \end{tikzpicture}
+ \end{center}
+ \end{columns}
+ \end{frame}
+ \begin{frame}
+ \only<1>{\begin{center}
+ \begin{tikzpicture}[>=stealth,scale=0.5,transform shape]
+ \foreach \x in {0,1,...,7}
+ \foreach \y in {0,1,...,7}
+ \draw (\y,\x) circle (0.3)[draw=blue!50,fill=blue!20,thick];
+ \draw (0,-1) circle (0.3)[draw=blue!50,fill=blue!20,thick];
+ \draw (0,-1) node {CU};
+ \draw (0,7) node {A};
+ \draw (7,0) node {B};
+ %\draw[->,color=red,dashed,very thick] (0,0) -- (0,7);
+ \draw[color=black!0] (0,-.5) -- (1,-.5);
+ \foreach \x in {0,...,6}
+ \foreach \y in {0,...,7}
+ \draw (\y,\x)+(0,0.3) -- +(0,0.7);
+ \foreach \x in {0,...,7}
+ \foreach \y in {0,...,6}
+ \draw (\y,\x)+(0.3,0) -- +(0.7,0);
+
+ %\draw[very thick,->] (0,7) -- (7,7) -- (7,0);
+
+ \end{tikzpicture}
+ \begin{tikzpicture}[>=stealth,scale=0.5,transform shape]
+ \foreach \x in {0,1,...,7}
+ \foreach \y in {0,1,...,7}
+ \draw (\y,\x) circle (0.3)[draw=blue!50,fill=blue!20,thick];
+ \draw (0,-1) circle (0.3)[draw=blue!50,fill=blue!20,thick];
+ \draw (0,-1) node {CU};
+ \draw (0,7) node {A};
+ \draw (7,0) node {B};
+ %\draw[very thick,->] (0,7) -- (0,0) -- (7,0);
+ %ring-net lines
+ \foreach \x in {0,...,5}
+ \foreach \y in {0,...,7}
+ \draw (\y,\x)+(0,0.3) -- +(0,0.7);
+ \draw (0,6)+(0,0.3) -- +(0,0.7);
+ \draw (7,6)+(0,0.3) -- +(0,0.7);
+ \foreach \x in {0,2,4,6} \draw (\x,0)+(0.3,0) -- +(0.7,0);
+ \foreach \x in {1,3,5} \draw (\x,6)+(0.3,0) -- +(0.7,0);
+ \foreach \x in {0,...,6} \draw (\x,7)+(0.3,0) -- +(0.7,0);
+
+ \draw[color=black!0] (0,-.5) -- (1,-.5);
+ \end{tikzpicture}
+ \end{center}}
+ \only<2>{\begin{center}
+ \begin{tikzpicture}[>=stealth,scale=0.5,transform shape]
+ \foreach \x in {0,1,...,7}
+ \foreach \y in {0,1,...,7}
+ \draw (\y,\x) circle (0.3)[draw=blue!50,fill=blue!20,thick];
+ \draw (0,-1) circle (0.3)[draw=blue!50,fill=blue!20,thick];
+ \draw (0,-1) node {CU};
+ \draw (0,7) node {A};
+ \draw (7,0) node {B};
+ \draw[->,color=red,dashed,very thick] (0,0) -- (0,7);
+ \draw[color=black!0] (0,-.5) -- (1,-.5);
+ \foreach \x in {0,...,6}
+ \foreach \y in {0,...,7}
+ \draw (\y,\x)+(0,0.3) -- +(0,0.7);
+ \foreach \x in {0,...,7}
+ \foreach \y in {0,...,6}
+ \draw (\y,\x)+(0.3,0) -- +(0.7,0);
+
+ \draw[very thick,->] (0,7) -- (7,7) -- (7,0);
+
+ \end{tikzpicture}
+ \begin{tikzpicture}[>=stealth,scale=0.5,transform shape]
+ \foreach \x in {0,1,...,7}
+ \foreach \y in {0,1,...,7}
+ \draw (\y,\x) circle (0.3)[draw=blue!50,fill=blue!20,thick];
+ \draw (0,-1) circle (0.3)[draw=blue!50,fill=blue!20,thick];
+ \draw (0,-1) node {CU};
+ \draw (0,7) node {A};
+ \draw (7,0) node {B};
+ \draw[very thick,->] (0,7) -- (0,0) -- (7,0);
+ %ring-net lines
+ \foreach \x in {0,...,5}
+ \foreach \y in {0,...,7}
+ \draw (\y,\x)+(0,0.3) -- +(0,0.7);
+ \draw (0,6)+(0,0.3) -- +(0,0.7);
+ \draw (7,6)+(0,0.3) -- +(0,0.7);
+ \foreach \x in {0,2,4,6} \draw (\x,0)+(0.3,0) -- +(0.7,0);
+ \foreach \x in {1,3,5} \draw (\x,6)+(0.3,0) -- +(0.7,0);
+ \foreach \x in {0,...,6} \draw (\x,7)+(0.3,0) -- +(0.7,0);
+
+ \draw[color=black!0] (0,-.5) -- (1,-.5);
+ \end{tikzpicture}
+ \end{center}}
+ \end{frame}
+ \begin{frame}
+ \begin{center}
+ %\includegraphics[scale=.7]{results/conftimes2}
+ \end{center}
+ \end{frame}
+ \small
+ \begin{frame}{Synthesis results at 500MHz}
+ \begin{table} [ht]
+ \centering
+ \begin{tabular}{lll}
+ \toprule
+ Component & Slack (ns) & Area ($mm^2$)\\
+ \midrule
+ Packet switched (Kavaldjiev) & 0.00 & 0.2133\\
+ Small packet switched (Kavaldjiev) & 0.00 & 0.0769\\
+ Circuit switched (Annabelle) & 0.42 & 0.0254\\
+ Circuit switched SingleReg (thesis) & 0.35 & 0.0393\\
+ Circuit switched DoubleReg (thesis) & 0.03 & 0.0681\\
+ \midrule
+ Ring configuration & 0.96 & 0.0030\\
+ \acs{CSDCrouter} & 0.85 & 0.0021\\
+ %\acs{CSDCrouter} with TTL & 0.26 & 0.0090\\
+
+
+ \bottomrule
+ \end{tabular}
+ \caption{Results of 90nm ASIC technology from TSMC at 500MHz}
+ \end{table}
+ \end{frame}
+ \begin{frame}{Synthesis results at 1000MHz}
+ \begin{table} [ht]
+ \centering
+ \begin{tabular}{lll}
+ \toprule
+ Component & Slack (ns) & Area ($mm^2$)\\
+ \midrule
+ Packet switched (Kavaldjiev) & -0.66 & 0.2174 \\
+ Small packet switched (Kavaldjiev) & -0.67 & 0.0812\\
+ Circuit switched (Annabelle) & 0.00 & 0.0265\\
+ Circuit switched SingleReg (thesis) & 0.00 & 0.0423\\
+ Circuit switched DoubleReg (thesis) & 0.00 & 0.0837\\
+ \midrule
+ Ring configuration & 0.02 & 0.0030\\
+ \acs{CSDCrouter} & 0.01 & 0.0022\\
+ %\acs{CSDCrouter} with TTL & -0.17 & 0.0098\\
+ \bottomrule
+ \end{tabular}
+ \caption{Results of 90nm ASIC technology from TSMC at 1000MHz}
+ \label{tabASIC1000}
+ \end{table}
+ \end{frame}
+ \normalsize
+
+\section{Conclusion}
+ \begin{frame}{Flow control}
+ \begin{itemize}
+ \item DirectAck is not scalable, but good for very small \acp{NoC}.\onslide<2->
+ \item Single register is slower, but usable for any size of \ac{NoC}.\onslide<3->
+ \item Double register requires twice as much area, but is fast and usable for any size of \ac{NoC}.\onslide<4->
+ \item Windowed transmission requires very much buffer area in the tiles, and is therefore not recommended.\onslide<5->
+ \end{itemize}
+ Scalable flow control always requires two buffers or two clock cycles.
+ \end{frame}
+ \begin{frame}{Choosing a NoC}
+ \begin{itemize}
+ \item Best Effort (BE) traffic:
+ \begin{itemize}
+ \item Much BE traffic: use Packet Switched.\onslide<2->
+ \item Some control BE traffic: use SAnet with ring network.\onslide<3->
+ \item No BE traffic: use SAnet with CSDCnet.\onslide<4->
+ \item Some BE traffic can also be routed efficiently using circuits in the circuit switched network, bursts for example.\onslide<5->
+ \item CSDCnet does not support connections initiated from the tiles.\onslide<6->
+ \end{itemize}
+ \item Guaranteed Service (GS) traffic:
+ \begin{itemize}
+ \item High bandwidth streams: use circuit switched;
+ \begin{itemize}
+ \item Circuit switched has 4 outputs per port.
+ \item Circuit switched can be clocked at 1GHz.\onslide<7->
+ \end{itemize}
+ \item Low bandwidth streams: use packet switched;
+ \begin{itemize}
+ \item Streams can be multiplexed.
+ \end{itemize}
+
+ \end{itemize}
+ \end{itemize}
+ \end{frame}
+ %tiny
+ \begin{frame}[shrink=33]{CSDCnet vs Ring}
+ \vspace{2cm}
+ \begin{table}
+ \centering
+ \begin{tabular}{ll}\toprule
+ \acs{CSDCnet} & Ring network\\
+ \midrule
+ Circuit switched & Packet switched\\%\onslide<2-> \\
+ Full \acs{NoC} configuration in 1.3ms (for N=8) & Full \acs{NoC} configuration in 0.8ms (for N=8)\\%\onslide<3-> \\
+ No BE traffic support & Tiles can send BE data over the ring\\%\onslide<4-> \\
+ Topology the same as data \acs{NoC} & Topology differs from data \acs{NoC}\\%\onslide<5-> \\
+ Worst case config time increases linearly & Worst case config time increases quadratically\\%\onslide<6-> \\
+ Central coordination for avoiding deadlocks & No deadlocks possible\\%\onslide<7-> \\
+ Area on chip is $2166 \mu m^2$ (one router) & Area on chip is $3026 \mu m^2$ (one router)\\%\onslide<1->\\
+ \bottomrule
+ \end{tabular}
+ \caption{Configuration networks: Serial VS Ring}
+ \label{tab:SerialVSRing}
+ \end{table}
+ \end{frame}
+ %\normalsize
+ \begin{frame}{Future research}
+ \begin{itemize}
+ \item Recommendations for future research:
+ \begin{itemize}
+ \item Configuration using data lanes
+ \item Optimisations for \ac{CSDCnet}
+ \item Optimisations for ring network
+ \item Packet switched mesh configuration network
+ \end{itemize}
+ \end{itemize}
+ \end{frame}
+% \begin{frame}
+% \begin{center}
+% \includegraphics[scale=.16]{images/qmark2}
+% \end{center}
+% \end{frame}
+\appendix
+
+%\begin{frame}{Synthesis settings}
+% To compare size and maximum clock frequency of various \acp{NoC}, we synthesised them using the 90nm TSMC library with the following settings:
+% \begin{itemize}
+% \item Operating Condition Name: WCCOM.
+% \item Library: tcbn90gthpwc.
+% \item Process: 1.00.
+% \item Temperature: 125.00.
+% \item Voltage: 1.08.
+% \item Interconnect Model: balanced\_tree.
+% \end{itemize}
+%\end{frame}
+%\tiny
+%\begin{frame}{Commands}
+% \begin{table} [ht]
+% \centering
+% \begin{tabular}{lll} \toprule
+% Command name & Command description & Parameters (Length in bits)\\
+% \midrule
+% CONFIG & Configure current data router & configuration data (11)\\
+% CONFIG\_TTL & Configure current data router & configuration data and TTL (13)\\
+% DESTROY & Destroy complete configuration path & -\\
+% EXTEND & Extend configuration path & direction to extend to (3)\\
+% REMOVE & Remove the last router from path & -\\
+% RESET\_ALL & Reset complete \acs{NoC} and all tiles & -\\
+% RESET\_TILE & Reset current tile & -\\
+% SET\_TTL & Set TTL value & TTL, destination and timeout (14)\\
+% STATUS & Returns the TTL status & no data while status is returned (20)\\
+% \bottomrule
+% \end{tabular}
+% \caption{Commands}
+% \label{tab:commands}
+% \end{table}
+%\end{frame}
+%\normalsize
+
+%\begin{frame}{SRAM size vs register size}
+% \begin{figure}
+% \centering
+% \includegraphics[scale=.5]{images/sram_register_16_90}
+% \caption{Estimation of size of SRAM vs registers in 90nm UMC technology}
+% \label{pic:SRAMvsREGS}
+% \end{figure}
+%\end{frame}
+
+%\begin{frame}{Examples of \acp{NoC}}
+% \tiny
+% \begin{table} [ht]
+% \centering
+% \begin{tabular}{lllll} \toprule
+% NoC & CS or PS & BE/GS & Flow control & Configuration \\
+% \midrule
+% \AE thereal & PS & BE and GS & BE:Handshake, GS:Windowed & Header\\
+% Kavaldjiev & PS & BE and GS & Handshake & Header\\
+% SoCIN & PS & BE & Handshake & XY header\\
+% SoCBUS & CS & GS & Handshake & Header\\
+% PACT XPP & CS & GS & Handshake & Config network\\
+% Annabelle's NoC & CS & GS & Handshake & Config network\\
+% \bottomrule
+% \end{tabular}
+% \caption{Different NoCs}
+% \label{tab:NoCs}
+% \end{table}
+%\end{frame}
+
+%\begin{frame}{Glossary}
+ \begin{acronym}[CRISP]
+ \acro{ASIC}{application-specific integrated circuit}
+ \acro{CRISP}{Cutting edge Reconfigurable ICs for Stream Processing}
+ \acro{CSDCnet}{Circuit switched Serial Dedicated Configuration network}
+ \acro{CSDCrouter}{Circuit switched Serial Dedicated Configuration router}
+ \acro{CU}{Configuration Unit}
+ \acro{FPGA}{field programmable gate array}
+ \acro{GPP}{general purpose processor}
+ \acro{KISS}{keeping it simple and stupid}
+ \acro{NoC}{Network-on-Chip}
+ \acro{SAnet}{Scalable Annabelle network}
+ \acro{SoC}{System-on-Chip}
+ \end{acronym}
+%\end{frame}
+\end{document}
+
+%\tiny tiny font
+%\scriptsize very small font
+%\footnotesize quite small font
+%\small small font
+%\normalsize normal font
+%\large large font
+%\Large larger font
+%\LARGE very large font
+%\huge huge
+%\Huge largest
projects / matthijs / projects / internship.git / commitdiff