Merge pull request #19 from CExA-project/add_transitions_no_mem

Add light transitions

Author: pzehner

courses/01_beginners/main.tex

@@ -282,6 +282,7 @@ \section{Introduction}
                 \item[Productivity] Write code quickly and easily, maintain and extend code, leverage architecture optimization
             \end{description}
         \end{column}
+        \pause
         \begin{column}{0.55\linewidth}
             What \emph{developers for science} also want
 
@@ -314,6 +315,7 @@ \section{Introduction}
                 \item Want your code to be easily maintainable and readable by others, especially non experts
             \end{itemize}
         \end{column}
+        \pause
         \begin{column}{0.5\linewidth}
             Maybe \emph{no} if you...
 
@@ -361,12 +363,14 @@ \section{Introduction}
             \item Abstraction of most parallel patterns used in HPC (loops, reduction, scan)
             \item Abstracted basic data structures used in science (vectors, multidimensional arrays, sub-arrays, strided arrays, etc)
         \end{itemize}
+        \pause
         \item Kokkos' advanced capabilities
         \begin{itemize}
             \item Advanced data structure properties
             \item Thread safety, thread scalability, and atomic operations
             \item Hierarchical patterns for maximizing parallelism
         \end{itemize}
+        \pause
         \item Kokkos' tools and Kernels
         \begin{itemize}
             \item Profiling, tuning and debuging tools
@@ -461,6 +465,7 @@ \subsection{Compilation}
                     -DCMAKE_CXX_COMPILER=g++
             \end{minted}
         \end{column}
+        \pause
         \begin{column}{0.4\linewidth}
             \begin{center}
                 \begin{tblr}[theme=kokkostable]{ll}
@@ -492,6 +497,7 @@ \subsection{Compilation}
                     -DKokkos_ENABLE_CUDA=ON
             \end{minted}
         \end{column}
+        \pause
         \begin{column}{0.55\linewidth}
             \begin{center}
                 \begin{tblr}[theme=kokkostable]{ll}
@@ -529,6 +535,7 @@ \subsection{Compilation}
                 \item All CMake options are available \doclink{\href{https://kokkos.org/kokkos-core-wiki/keywords.html}{in the doc}}
             \end{itemize}
         \end{column}
+        \pause
         \begin{column}{0.6\linewidth}
             \begin{center}
                 \small
@@ -613,6 +620,7 @@ \subsection{Compilation}
                 \end{itemize}
             \end{alertblock}
         \end{column}
+        \pause
         \begin{column}{0.25\linewidth}
             \strut As a Git submodule
 
@@ -631,6 +639,7 @@ \subsection{Compilation}
                 \end{itemize}
             \end{alertblock}
         \end{column}
+        \pause
         \begin{column}{0.25\linewidth}
             \strut Using CMake
 
@@ -647,6 +656,7 @@ \subsection{Compilation}
                 \end{itemize}
             \end{alertblock}
         \end{column}
+        \pause
         \begin{column}{0.25\linewidth}
             \strut With Spack
 
@@ -1381,6 +1391,7 @@ \subsection{Parallel loops}
                 Only works on CPUs (need \texttt{target} directive for GPUs)
             \end{block}
         \end{column}
+        \pause
         \begin{column}{0.5\linewidth}
             Kokkos version
 
@@ -1425,8 +1436,9 @@ \subsection{Parallel loops}
         \end{column}
     \end{columns}
 
-    \vspace{1em}
+    \pause
 
+    \vspace{1em}
     \structure{Question:} What is this \texttt{KOKKOS\_LAMBDA} thingy?
 \end{frame}
 
@@ -1461,11 +1473,13 @@ \subsection{Parallel loops}
     \end{center}
     \begin{itemize}
         \item Kokkos abstraction for where the loop is executed : \highlight{execution space}
+        \pause
         \item Parallel code (i.e. inside a \texttt{parallel\_*}) is by default executed
         \begin{itemize}
             \item By the Host if no GPU backend is available
             \item By the Device otherwise
         \end{itemize}
+        \pause
         \item Serial code (the rest) is always executed on the Host
     \end{itemize}
 \end{frame}
@@ -1498,8 +1512,10 @@ \subsection{Parallel loops}
         \end{column}
     \end{columns}
 
+    \pause
+
     \vspace{1em}
-    \structure{Problem:} What if I need the results of the parallel loop in the host code?
+    \structure{Problem:} What if I need the result of the parallel loop in the host code?
 \end{frame}
 
 % _____________________________________________________________________________
@@ -1601,6 +1617,7 @@ \subsection{Extending loop policies}
                 );
             \end{minted}
         \end{column}
+        \pause
         \begin{column}{0.55\linewidth}
             Explicit version (same)\strut
 
@@ -1628,6 +1645,7 @@ \subsection{Extending loop policies}
         \item \texttt{Kokkos::DefaultExecutionSpace} and \texttt{Kokkos::DefaultHostExecutionSpace} are enough for beginners
         \item Using a backend-specific execution space is possible, but it breaks portability
     \end{itemize}
+    \pause
     \begin{center}
         \begin{tblr}[theme=kokkostable]{colspec=lll, row{2}={bg=lightmain}}
             & \SetCell[c=2]{l} Kokkos compiled on \\
@@ -1654,6 +1672,7 @@ \subsection{Extending loop policies}
         \item \texttt{memory\_space} attribute to access the memory space associated with an execution space
         \item \texttt{HostSpace} for memory space of the default host execution space
     \end{itemize}
+    \pause
     \begin{center}
         % allow the table to overflow horizontally
         \makebox[\linewidth][c]{%
@@ -1775,6 +1794,7 @@ \subsection{Extending loop policies}
             \begin{itemize}
                 \item One scalar variable collects something for each iteration (sum, max, min, etc.)
                 \item Same constraints as before
+                \pause
                 \item Horrible truth: \texttt{result} value \highlight{depends} on iteration order!
             \end{itemize}
         \end{column}
@@ -1862,8 +1882,12 @@ \subsection{Extending loop policies}
         );
     \end{minted}
 
+    \pause
+
     \structure{Note:} Notice that mathematical operators are in the \texttt{Kokkos} namespace
 
+    \pause
+
     \structure{Beware:} \texttt{Kokkos::max} is not the same as \texttt{Kokkos::Max<double>}!
 \end{frame}