minor updates (sec 9)

Chapter9/Figures/figure-4-gram.tex

@@ -26,9 +26,11 @@
 \draw [->,line width=1pt] ([yshift=0.1em]h1.north) -- ([yshift=-0.1em]ylabel.south);
 
 {
+\begin{pgfonlayer}{background}
 \draw [->,dashed,red,line width=1pt] ([xshift=1em,yshift=0.1em]e1.north) -- ([xshift=1em,yshift=-0.1em]h1.south);
 \draw [->,dashed,red,line width=1pt] ([xshift=-1em,yshift=0.1em]e0.north) .. controls +(north:2) and +(south:1) .. ([xshift=-3em,yshift=-0.1em]h1.south);
 \draw [->,dashed,red,line width=1pt] ([xshift=1em,yshift=0.1em]e2.north) .. controls +(north:2) and +(south:1) .. ([xshift=3em,yshift=-0.1em]h1.south);
+\end{pgfonlayer}
 }
 
 \begin{pgfonlayer}{background}

Chapter9/Figures/figure-parallel.tex

@@ -36,8 +36,8 @@
 \draw[<-,very thick,blue] ([xshift=0.5em,yshift=2pt]processor2.north) -- ([xshift=0.5em,yshift=-2pt]serverbox.south) node [pos=0.5,align=left,xshift=2.2em] (fetchlabel) {\footnotesize{${\bm \theta}_{\textrm{new}}$}};;;
 \draw[->,very thick,red] ([xshift=-0.5em,yshift=2pt]processor3.north) --
  ([xshift=3em,yshift=-2pt]serverbox.south);
-\draw[<-,very thick,blue] ([xshift=0.5em,yshift=2pt]processor3.north) -- ([xshift=4em,yshift=-2pt]serverbox.south) node [pos=0.49,align=left,xshift=2.2em] (fetchlabel) {\footnotesize{fetch (F)}};
-\draw[->,very thick,red] ([xshift=-0.5em,yshift=2pt]processor1.north) -- ([xshift=-4em,yshift=-2pt]serverbox.south) node [pos=0.5,align=right,xshift=-2em] (pushlabel) {\footnotesize{push (P)}};
+\draw[<-,very thick,blue] ([xshift=0.5em,yshift=2pt]processor3.north) -- ([xshift=4em,yshift=-2pt]serverbox.south) node [pos=0.49,align=left,xshift=2.2em] (fetchlabel) {\footnotesize{Fetch($\cdot$)}};
+\draw[->,very thick,red] ([xshift=-0.5em,yshift=2pt]processor1.north) -- ([xshift=-4em,yshift=-2pt]serverbox.south) node [pos=0.5,align=right,xshift=-2em] (pushlabel) {\footnotesize{Push($\cdot$)}};
 \draw[<-,very thick,blue] ([xshift=0.5em,yshift=2pt]processor1.north) -- ([xshift=-3em,yshift=-2pt]serverbox.south);
 }
 
@@ -114,8 +114,8 @@
 \draw[<-,very thick,blue] ([xshift=0.5em,yshift=2pt]processor2.north) -- ([xshift=0.5em,yshift=-2pt]serverbox.south) node [pos=0.5,align=left,xshift=2.2em] (fetchlabel) {\footnotesize{${\bm \theta}_{\textrm{new}}$}};;;
 \draw[->,very thick,red] ([xshift=-0.5em,yshift=2pt]processor3.north) --
  ([xshift=3em,yshift=-2pt]serverbox.south);
-\draw[<-,very thick,blue] ([xshift=0.5em,yshift=2pt]processor3.north) -- ([xshift=4em,yshift=-2pt]serverbox.south) node [pos=0.49,align=left,xshift=2.2em] (fetchlabel) {\footnotesize{fetch (F)}};
-\draw[->,very thick,red] ([xshift=-0.5em,yshift=2pt]processor1.north) -- ([xshift=-4em,yshift=-2pt]serverbox.south) node [pos=0.5,align=right,xshift=-2em] (pushlabel) {\footnotesize{push (P)}};
+\draw[<-,very thick,blue] ([xshift=0.5em,yshift=2pt]processor3.north) -- ([xshift=4em,yshift=-2pt]serverbox.south) node [pos=0.49,align=left,xshift=2.2em] (fetchlabel) {\footnotesize{Fetch($\cdot$)}};
+\draw[->,very thick,red] ([xshift=-0.5em,yshift=2pt]processor1.north) -- ([xshift=-4em,yshift=-2pt]serverbox.south) node [pos=0.5,align=right,xshift=-2em] (pushlabel) {\footnotesize{Push($\cdot$)}};
 \draw[<-,very thick,blue] ([xshift=0.5em,yshift=2pt]processor1.north) -- ([xshift=-3em,yshift=-2pt]serverbox.south);
 }