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01/03: talks: fosdem-2018: Add HPC talk.
|
From: |
Ludovic Courtès |
|
Subject: |
01/03: talks: fosdem-2018: Add HPC talk. |
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Date: |
Sun, 4 Feb 2018 04:46:07 -0500 (EST) |
civodul pushed a commit to branch master
in repository maintenance.
commit bb291b2d8d8a978fc182beb4ced8bf322297b5c0
Author: Ludovic Courtès <address@hidden>
Date: Thu Feb 1 18:38:14 2018 +0100
talks: fosdem-2018: Add HPC talk.
---
.gitignore | 9 +
.../hpc/images/Galapagos-satellite-2002.jpg | Bin 0 -> 395937 bytes
.../hpc/images/Guix-horizontal-print.pdf | Bin 0 -> 5351 bytes
.../hpc/images/acm-artifact-review-and-badging.png | Bin 0 -> 165051 bytes
.../hpc/images/acm-artifacts-evaluated-badge.png | Bin 0 -> 153596 bytes
talks/fosdem-2018/hpc/images/arrow-curly.svg | 50 +++
talks/fosdem-2018/hpc/images/arrow.svg | 44 +++
talks/fosdem-2018/hpc/images/big-picture-1.pdf | Bin 0 -> 12081 bytes
talks/fosdem-2018/hpc/images/big-picture-2.pdf | Bin 0 -> 35522 bytes
talks/fosdem-2018/hpc/images/big-picture-3.pdf | Bin 0 -> 44121 bytes
talks/fosdem-2018/hpc/images/big-picture.svg | 388 ++++++++++++++++++
.../hpc/images/guixhpc-logo-transparent-white.pdf | Bin 0 -> 8808 bytes
.../hpc/images/guixhpc-logo-transparent.pdf | Bin 0 -> 8802 bytes
.../fosdem-2018/hpc/images/hwloc-runtime-deps.dot | 213 ++++++++++
.../nature-reviewing-computational-methods.png | Bin 0 -> 308998 bytes
.../fosdem-2018/hpc/images/nature-transparency.png | Bin 0 -> 285111 bytes
talks/fosdem-2018/hpc/images/rescience-logo.png | Bin 0 -> 13090 bytes
talks/fosdem-2018/hpc/images/rescience.png | Bin 0 -> 183043 bytes
talks/fosdem-2018/hpc/images/swh-logo.gif | Bin 0 -> 24067 bytes
talks/fosdem-2018/hpc/images/swh-logo2.png | Bin 0 -> 27637 bytes
talks/fosdem-2018/hpc/images/swh-web-site.png | Bin 0 -> 648158 bytes
.../hpc/images/workflow-management-3.pdf | Bin 0 -> 11703 bytes
talks/fosdem-2018/hpc/rules.ini | 1 +
talks/fosdem-2018/hpc/talk.tex | 434 +++++++++++++++++++++
24 files changed, 1139 insertions(+)
diff --git a/.gitignore b/.gitignore
index 2830c29..d7bb9f9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -135,3 +135,12 @@
/talks/gpce-2017/talk.snm
/talks/gpce-2017/talk.toc
/talks/gpce-2017/talk.vrb
+/talks/fosdem-2018/hpc/images/hwloc-runtime-deps.pdf
+/talks/fosdem-2018/hpc/talk.aux
+/talks/fosdem-2018/hpc/talk.log
+/talks/fosdem-2018/hpc/talk.nav
+/talks/fosdem-2018/hpc/talk.out
+/talks/fosdem-2018/hpc/talk.pdf
+/talks/fosdem-2018/hpc/talk.snm
+/talks/fosdem-2018/hpc/talk.toc
+/talks/fosdem-2018/hpc/talk.vrb
diff --git a/talks/fosdem-2018/hpc/images/Galapagos-satellite-2002.jpg
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diff --git a/talks/fosdem-2018/hpc/images/acm-artifact-review-and-badging.png
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+ "/gnu/store/4dcmvvkmys10mrlvx4xfjggvwf6zlixb-libxau-1.0.8" ->
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+ "/gnu/store/4dcmvvkmys10mrlvx4xfjggvwf6zlixb-libxau-1.0.8" ->
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+ "/gnu/store/bjfbgwd1iaqdv3qpryr13lvzs7xyrjn0-libxdmcp-1.1.2" ->
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+ "/gnu/store/bjfbgwd1iaqdv3qpryr13lvzs7xyrjn0-libxdmcp-1.1.2" ->
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+ "/gnu/store/nwxv9s2q8pi0m6gn6fyidpj8442dwp6f-cairo-1.14.10" ->
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+ "/gnu/store/nwxv9s2q8pi0m6gn6fyidpj8442dwp6f-cairo-1.14.10" ->
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+ "/gnu/store/nwxv9s2q8pi0m6gn6fyidpj8442dwp6f-cairo-1.14.10" ->
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+ "/gnu/store/5nb0n9hnfy04bhssdsgikil13bsrf1ha-pcre-8.41" ->
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+ "/gnu/store/5nb0n9hnfy04bhssdsgikil13bsrf1ha-pcre-8.41" ->
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"/gnu/store/3h31zsqxjjg52da5gp3qmhkh4x8klhah-glibc-2.25" [color = magenta];
+ "/gnu/store/80fy0frgfzraw0a9c46sicj3rm3zyvay-glib-2.52.3" ->
"/gnu/store/5nb0n9hnfy04bhssdsgikil13bsrf1ha-pcre-8.41" [color = magenta];
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"/gnu/store/6wyjls0q2c9gjskkplsr1ad09p3d8gzg-gcc-5.4.0-lib" [color = magenta];
+ "/gnu/store/80fy0frgfzraw0a9c46sicj3rm3zyvay-glib-2.52.3" ->
"/gnu/store/80fy0frgfzraw0a9c46sicj3rm3zyvay-glib-2.52.3" [color = magenta];
+ "/gnu/store/80fy0frgfzraw0a9c46sicj3rm3zyvay-glib-2.52.3" ->
"/gnu/store/kvi64k387hqdrn59gsgd09brxh65jxjj-libffi-3.2.1" [color = magenta];
+ "/gnu/store/80fy0frgfzraw0a9c46sicj3rm3zyvay-glib-2.52.3" ->
"/gnu/store/navpkpm1jf6zf8zmi54wl5w3b2ddv1sw-zlib-1.2.11" [color = magenta];
+ "/gnu/store/80fy0frgfzraw0a9c46sicj3rm3zyvay-glib-2.52.3" ->
"/gnu/store/qa3s0zkbqkrvg8ljw0wnddyki6fz31cy-util-linux-2.30.1" [color =
magenta];
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+ "/gnu/store/0v7wflmk68dx7fvfx60ni2yrmx2dhvqd-bash-4.4.12" ->
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+ "/gnu/store/0v7wflmk68dx7fvfx60ni2yrmx2dhvqd-bash-4.4.12" ->
"/gnu/store/3h31zsqxjjg52da5gp3qmhkh4x8klhah-glibc-2.25" [color = blue];
+ "/gnu/store/0v7wflmk68dx7fvfx60ni2yrmx2dhvqd-bash-4.4.12" ->
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+ "/gnu/store/0v7wflmk68dx7fvfx60ni2yrmx2dhvqd-bash-4.4.12" ->
"/gnu/store/95m3yfjq6x6fydcb8camzif4x8q8w92j-readline-7.0" [color = blue];
+ "/gnu/store/0v7wflmk68dx7fvfx60ni2yrmx2dhvqd-bash-4.4.12" ->
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+ "/gnu/store/95m3yfjq6x6fydcb8camzif4x8q8w92j-readline-7.0" [label =
"readline-7.0", shape = box, fontname = Helvetica];
+ "/gnu/store/95m3yfjq6x6fydcb8camzif4x8q8w92j-readline-7.0" ->
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+ "/gnu/store/95m3yfjq6x6fydcb8camzif4x8q8w92j-readline-7.0" ->
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peachpuff4];
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+ "/gnu/store/95m3yfjq6x6fydcb8camzif4x8q8w92j-readline-7.0" ->
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+ "/gnu/store/kvi64k387hqdrn59gsgd09brxh65jxjj-libffi-3.2.1" [label =
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+ "/gnu/store/qa3s0zkbqkrvg8ljw0wnddyki6fz31cy-util-linux-2.30.1" ->
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+ "/gnu/store/qa3s0zkbqkrvg8ljw0wnddyki6fz31cy-util-linux-2.30.1" ->
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+ "/gnu/store/vvlp2b6vnk25yx26km4f2k4r2vmdq0ch-expat-2.2.4" ->
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darkgoldenrod];
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magenta];
+ "/gnu/store/vvmdrq64h7p7gr7r7dx0bks9wm56cff1-fontconfig-2.12.3" ->
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+ "/gnu/store/4c0dm8h5ln0zr1l93nwhhizf5p040yi6-gs-fonts-8.11" [label =
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+ "/gnu/store/y3dy1cj8cjcsymmxhm0wb5sz68briw5n-libxrender-0.9.10" ->
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+ "/gnu/store/y3dy1cj8cjcsymmxhm0wb5sz68briw5n-libxrender-0.9.10" ->
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+ "/gnu/store/y3dy1cj8cjcsymmxhm0wb5sz68briw5n-libxrender-0.9.10" ->
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darkviolet];
+ "/gnu/store/y3dy1cj8cjcsymmxhm0wb5sz68briw5n-libxrender-0.9.10" ->
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+ "/gnu/store/y3dy1cj8cjcsymmxhm0wb5sz68briw5n-libxrender-0.9.10" ->
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darkviolet];
+ "/gnu/store/y3dy1cj8cjcsymmxhm0wb5sz68briw5n-libxrender-0.9.10" ->
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+ "/gnu/store/y3dy1cj8cjcsymmxhm0wb5sz68briw5n-libxrender-0.9.10" ->
"/gnu/store/y3dy1cj8cjcsymmxhm0wb5sz68briw5n-libxrender-0.9.10" [color =
darkviolet];
+
+}
diff --git
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diff --git a/talks/fosdem-2018/hpc/images/swh-logo.gif
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diff --git a/talks/fosdem-2018/hpc/images/swh-logo2.png
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diff --git a/talks/fosdem-2018/hpc/images/swh-web-site.png
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diff --git a/talks/fosdem-2018/hpc/images/workflow-management-3.pdf
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diff --git a/talks/fosdem-2018/hpc/rules.ini b/talks/fosdem-2018/hpc/rules.ini
new file mode 120000
index 0000000..d0dbb5d
--- /dev/null
+++ b/talks/fosdem-2018/hpc/rules.ini
@@ -0,0 +1 @@
+../../fosdem-2017/hpc/rules.ini
\ No newline at end of file
diff --git a/talks/fosdem-2018/hpc/talk.tex b/talks/fosdem-2018/hpc/talk.tex
new file mode 100644
index 0000000..e4336ff
--- /dev/null
+++ b/talks/fosdem-2018/hpc/talk.tex
@@ -0,0 +1,434 @@
+% The comment below tells Rubber to compile the .dot files.
+%
+% rubber: module graphics
+% rubber: rules rules.ini
+
+\documentclass[aspectratio=169]{beamer}
+
+\usetheme{default}
+
+\usefonttheme{structurebold}
+\usepackage{helvet}
+\usecolortheme{seagull} % white on black
+
+\usepackage[utf8]{inputenc}
+\PassOptionsToPackage{hyphens}{url}\usepackage{hyperref,xspace,multicol}
+\usepackage[absolute,overlay]{textpos}
+\usepackage{tikz}
+\usetikzlibrary{arrows,shapes,trees,shadows,positioning}
+\usepackage{fancyvrb} % for '\Verb'
+\usepackage{xifthen} % for '\isempty'
+
+% Remember the position of every picture.
+\tikzstyle{every picture}+=[remember picture]
+
+\tikzset{onslide/.code args={<#1>#2}{%
+ \only<#1>{\pgfkeysalso{#2}} % \pgfkeysalso doesn't change the path
+}}
+
+% Colors.
+\definecolor{guixred1}{RGB}{226,0,38} % red P
+\definecolor{guixorange1}{RGB}{243,154,38} % guixorange P
+\definecolor{guixyellow}{RGB}{254,205,27} % guixyellow P
+\definecolor{guixred2}{RGB}{230,68,57} % red S
+\definecolor{guixred3}{RGB}{115,34,27} % dark red
+\definecolor{guixorange2}{RGB}{236,117,40} % guixorange S
+\definecolor{guixtaupe}{RGB}{134,113,127} % guixtaupe S
+\definecolor{guixgrey}{RGB}{91,94,111} % guixgrey S
+\definecolor{guixdarkgrey}{RGB}{46,47,55} % guixdarkgrey S
+\definecolor{guixblue1}{RGB}{38,109,131} % guixblue S
+\definecolor{guixblue2}{RGB}{10,50,80} % guixblue S
+\definecolor{guixgreen1}{RGB}{133,146,66} % guixgreen S
+\definecolor{guixgreen2}{RGB}{157,193,7} % guixgreen S
+
+\setbeamerfont{title}{size=\huge}
+\setbeamerfont{frametitle}{size=\huge}
+\setbeamerfont{normal text}{size=\Large}
+
+% White-on-black color theme.
+\setbeamercolor{structure}{fg=guixorange1,bg=black}
+\setbeamercolor{title}{fg=white,bg=black}
+\setbeamercolor{date}{fg=guixorange1,bg=black}
+\setbeamercolor{frametitle}{fg=white,bg=black}
+\setbeamercolor{titlelike}{fg=white,bg=black}
+\setbeamercolor{normal text}{fg=white,bg=black}
+\setbeamercolor{alerted text}{fg=guixyellow,bg=black}
+\setbeamercolor{section in toc}{fg=white,bg=black}
+\setbeamercolor{section in toc shaded}{fg=white,bg=black}
+\setbeamercolor{subsection in toc}{fg=guixorange1,bg=black}
+\setbeamercolor{subsection in toc shaded}{fg=white,bg=black}
+\setbeamercolor{subsubsection in toc}{fg=guixorange1,bg=black}
+\setbeamercolor{subsubsection in toc shaded}{fg=white,bg=black}
+\setbeamercolor{frametitle in toc}{fg=white,bg=black}
+\setbeamercolor{local structure}{fg=guixorange1,bg=black}
+
+\newcommand{\highlight}[1]{\alert{\textbf{#1}}}
+
+\title{Tying software deployment to scientific workflows}
+\subtitle{Using GNU~Guix to make software deployment a first-class citizen}
+
+\author{Ludovic Courtès}
+\date{\small{FOSDEM 2018}}
+
+\setbeamertemplate{navigation symbols}{} % remove the navigation bar
+
+\AtBeginSection[]{
+ \begin{frame}
+ \frametitle{}
+ \tableofcontents[currentsection]
+ \end{frame}
+}
+
+
+\newcommand{\screenshot}[2][width=\paperwidth]{
+ \begin{frame}[plain]
+ \begin{tikzpicture}[remember picture, overlay]
+ \node [at=(current page.center), inner sep=0pt]
+ {\includegraphics[{#1}]{#2}};
+ \end{tikzpicture}
+ \end{frame}
+}
+
+
+\begin{document}
+
+\begin{frame}[plain, fragile]
+ \vspace{10mm}
+ \titlepage
+
+ \vfill{}
+
\hfill{\includegraphics[width=0.2\paperwidth]{images/inria-logo-inverse-en-2017}}
+\end{frame}
+
+\setbeamercolor{normal text}{bg=guixblue2}
+\begin{frame}
+ \Huge{\textbf{Guix in a nutshell.}}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+\begin{frame}[fragile]
+
+ \begin{semiverbatim}
+ \Large{
+\$ guix package \alert{--install} gcc-toolchain openmpi hwloc
+\textrm{...}
+
+\$ eval `guix package \alert{--search-paths}`
+\textrm{...}
+
+\$ guix package \alert{--manifest}=my-packages.scm
+\textrm{...}
+
+\$ guix package \alert{--roll-back}
+\textrm{...}
+}
+ \end{semiverbatim}
+\end{frame}
+
+\begin{frame}[fragile]
+ \begin{semiverbatim}
+ \Large{
address@hidden guix \alert{pull} --commit=cabba9e
address@hidden guix package \alert{-i} gcc-toolchain openblas
+
+
+\pause
+
+
address@hidden guix \alert{pull} --commit=cabba9e
address@hidden guix package \alert{-i} gcc-toolchain openblas
+}
+ \end{semiverbatim}
+
+ \begin{tikzpicture}[overlay]
+ \node<3>[rounded corners=4, text centered,
+ fill=guixorange1, text width=7cm,
+ inner sep=3mm, opacity=.75, text opacity=1]
+ at (current page.center) {
+ \textbf{\Large{reproducible \& portable!}}
+ };
+ \end{tikzpicture}
+\end{frame}
+
+\begin{frame}[fragile]
+ \begin{semiverbatim}
+\Large{
+\$ guix build hwloc \\
+ \alert{--with-source}=./hwloc-2.0rc1.tar.gz
+\textrm{...}
+
+\pause
+\$ guix package -i mumps \alert{--with-input}=scotch=pt-scotch
+\textrm{...}
+
+\pause
+\$ guix package -i julia \alert{--with-input}=fftw=fftw-avx
+\textrm{...}
+}
+ \end{semiverbatim}
+\end{frame}
+
+
+\begin{frame}
+ \Large{
+ \begin{itemize}
+ \item started in 2012
+ \item \highlight{6,800+ packages}, all free software
+ \item x86\_64, i686, ARMv7, AArch64
+ \item binaries at \url{https://hydra.gnu.org}
+ \item 0.14.0 released in December 2017
+ \end{itemize}
+ }
+\end{frame}
+
+\setbeamercolor{normal text}{bg=white,fg=guixorange1}
+\begin{frame}[fragile]
+ \begin{tikzpicture}[overlay]
+ \node(logo) [at=(current page.center), inner sep=0pt]
+
{\includegraphics[width=\textwidth]{images/guixhpc-logo-transparent-white}};
+ %% \node [at=(logo.south), anchor=north, text=black, inner sep=10pt]
+ %% {\Large{\textbf{Reproducible software deployment\\for
high-performance computing.}}};
+ \node [at=(current page.south), anchor=south, text=guixtaupe, inner
sep=20pt]
+ {\Large{\url{https://guix-hpc.bordeaux.inria.fr}}};
+ \end{tikzpicture}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+%
http://www.planetobserver.fr/wp-content/uploads/2016/03/Galerie_SAT15L8_Pacific_FrenchPolynesia_SocietyIslands_Tahiti_Moorea.jpg
+%
https://www.planetobserver.fr/wp-content/uploads/2016/03/Galerie_SAT15L8_Pacific_FrenchPolynesia_SocietyIslands_BoraBora.jpg
+%
http://upload.wikimedia.org/wikipedia/commons/b/b1/Galapagos-satellite-2002.jpg
+%% \setbeamercolor{normal text}{bg=guixblue2}
+%% \begin{frame}
+%% \Huge{\textbf{The archipelago of \\ ``tools that do one thing.''}}
+%% \end{frame}
+%% \setbeamercolor{normal text}{fg=white,bg=black}
+
+\begin{frame}[fragile]
+ \begin{tikzpicture}[overlay]
+ \node [at=(current page.center), inner sep=0pt]
+ {\includegraphics[width=1.2\textwidth]{images/Galapagos-satellite-2002}};
+ \node [at=(current page.center), text=white, inner sep=20pt]
+ {\LARGE{\textbf{The archipelago of ``tools that do one thing.''}}};
+ \end{tikzpicture}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+
+\setbeamercolor{normal text}{bg=guixblue2}
+\begin{frame}
+ \Huge{\textbf{Reproducible deployment\\ at the center of the stage.}}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+\begin{frame}{``Package management''}
+ \Large{
+ \texttt{\$ guix \alert{package} -i openfoam emacs}
+ }
+\end{frame}
+
+\begin{frame}[fragile]{``Virtual environments''}
+ \Large{
+ \begin{semiverbatim}
+\$ git clone https://\textrm{...}/petsc
+\$ cd petsc
+\$ guix \alert{environment} petsc
+[env]\$ ./configure && make
+ \end{semiverbatim}
+ }
+\end{frame}
+
+\begin{frame}[fragile]{Container provisioning}
+ \Large{
+ \begin{semiverbatim}
+\$ guix \alert{pack}\only<2->{ --format=docker} hwloc
+\textrm{...}
+/gnu/store/\textrm{...}-\only<1>{pack.tar.gz}\only<2>{docker-image.tar.gz}
+ \end{semiverbatim}
+ }
+\end{frame}
+
+\setbeamercolor{normal text}{bg=guixblue2}
+\begin{frame}
+ \Huge{\textbf{Intermezzo: the\\programming language underpinnings}}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+\begin{frame}[fragile]{expression}
+ \begin{semiverbatim}
+ \LARGE{
+(system* "/bin/lstopo")
+ }
+ \end{semiverbatim}
+\end{frame}
+
+\begin{frame}[fragile]{staged expression}
+ \begin{semiverbatim}
+ \LARGE{
+\highlight{'}(system* "/bin/lstopo")
+ }
+ \end{semiverbatim}
+\end{frame}
+
+\begin{frame}[fragile]
+ \frametitle{deployment-aware staged expression}
+
+ \begin{semiverbatim}
+ \LARGE{
+\highlight{#~}(system* \highlight{#\$}(file-append \alert{hwloc}
"/bin/lstopo"))
+ }
+ \end{semiverbatim}
+\end{frame}
+
+\setbeamercolor{normal text}{bg=white}
+\begin{frame}[fragile]
+ \includegraphics[width=\textwidth]{images/hwloc-runtime-deps}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+\setbeamercolor{normal text}{bg=guixblue2}
+\begin{frame}[fragile]
+ \Huge{\textbf{Guix Workflow Language}}
+ \\
+ {\large{\url{http://www.guixwl.org}}}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+\setbeamercolor{normal text}{bg=white}
+\begin{frame}
+
\center{\includegraphics[height=0.9\textheight]{images/workflow-management-3}}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+\begin{frame}[fragile]
+ \begin{semiverbatim}
+\alert{define-module}
+ test
+\alert{use-modules}
+ guix workflows
+ guix processes
+ gnu packages bioinformatics
+ gnu packages python
+
+\alert{process}: simple-test
+ \alert{package-inputs}
+ list python samtools
+ \alert{data-inputs}
+ list "sample.bam" "hg38.fa" "abc"
+ \alert{procedure} #---{python}
+import os
+print "hello from python 3"
+---
+
+\alert{workflow}: example-workflow
+ \alert{processes}
+ list simple-test
+ \end{semiverbatim}
+\end{frame}
+
+\begin{frame}[fragile]
+ \begin{semiverbatim}
+ \Large{
+guix workflow --run=example \\
+ -i input.dat -o output.dat \\
+ --engine=\alert{grid-engine}
+ }
+ \end{semiverbatim}
+\end{frame}
+
+\setbeamercolor{normal text}{fg=black,bg=white}
+% http://www.nature.com/ngeo/journal/v7/n11/full/ngeo2294.html
+\screenshot{images/nature-transparency}
+
+% https://www.nature.com/nmeth/journal/v12/n12/full/nmeth.3686.html
+\screenshot{images/nature-reviewing-computational-methods}
+%
http://blogs.nature.com/methagora/2014/02/guidelines-for-algorithms-and-software-in-nature-methods.html
+
+% http://www.acm.org/publications/policies/artifact-review-badging
+%% \screenshot[height=\paperheight]{images/acm-artifact-review-and-badging}
+\screenshot[width=.9\paperwidth]{images/acm-artifacts-evaluated-badge}
+
+\screenshot{images/rescience}
+
+\setbeamercolor{normal text}{bg=white}
+\begin{frame}[plain]
+ \includegraphics[width=\textwidth]{images/big-picture-1}
+\end{frame}
+\begin{frame}[plain]
+ \includegraphics[width=\textwidth]{images/big-picture-2}
+\end{frame}
+\begin{frame}[plain]
+ \includegraphics[width=\textwidth]{images/big-picture-3}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+%% \begin{frame}
+%% \LARGE{Reproducible research demands\\
+%% reproducible software environments\\
+%% \& free software.}
+%% \end{frame}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\setbeamercolor{normal text}{bg=guixblue2}
+\begin{frame}[plain]
+ \Huge{\textbf{Let's connect the bits!}}
+\end{frame}
+\setbeamercolor{normal text}{fg=white,bg=black}
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\begin{frame}[plain]
+
+\vfill{
+ \vspace{2.5cm}
+
\center{\includegraphics[width=0.5\textwidth]{images/guixhpc-logo-transparent}}\\[1.0cm]
+ address@hidden
+ \center{\alert{\url{https://hpc.guixsd.org/}}}
+ \\[1cm]
+}
+\end{frame}
+
+\begin{frame}{}
+
+ \begin{textblock}{12}(2, 8)
+ \tiny{
+ Copyright \copyright{} 2010, 2012--2018 Ludovic Courtès address@hidden
+ GNU Guix logo, CC-BY-SA 4.0, \url{http://gnu.org/s/guix/graphics}
+ Workflow graph by Roel Janssen
+ Galapagos satellite image, public domain (Earth Observatory 8270
+ and NASA GSFC)
+ Hand-drawn arrows by Freepik from flaticon.com
+
+ Copyright of other images included in this document is held by
+ their respective owners.
+ \\[3.0mm]
+ This work is licensed under the \alert{Creative Commons
+ Attribution-Share Alike 3.0} License. To view a copy of this
+ license, visit
+ \url{http://creativecommons.org/licenses/by-sa/3.0/} or send a
+ letter to Creative Commons, 171 Second Street, Suite 300, San
+ Francisco, California, 94105, USA.
+ \\[2.0mm]
+ At your option, you may instead copy, distribute and/or modify
+ this document under the terms of the \alert{GNU Free Documentation
+ License, Version 1.3 or any later version} published by the Free
+ Software Foundation; with no Invariant Sections, no Front-Cover
+ Texts, and no Back-Cover Texts. A copy of the license is
+ available at \url{http://www.gnu.org/licenses/gfdl.html}.
+ \\[2.0mm]
+ % Give a link to the 'Transparent Copy', as per Section 3 of the GFDL.
+ The source of this document is available from
+ \url{http://git.sv.gnu.org/cgit/guix/maintenance.git}.
+ }
+ \end{textblock}
+\end{frame}
+
+\end{document}
+
+% Local Variables:
+% coding: utf-8
+% comment-start: "%"
+% comment-end: ""
+% ispell-local-dictionary: "american"
+% compile-command: "rubber --pdf talk.tex"
+% End:
+
+%% LocalWords: Reproducibility