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[mq]: folder_reorganization
author Carlo de Falco <cdf@users.sourceforge.net>
date Thu, 08 Nov 2012 09:55:34 +0100
parents what-is-octave.tex@8e32f52a1888
children f8c352d9af2d
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1 \documentclass[10pt]{beamer}
2
3
4 \usetheme{Octave}
5 \usepackage{thumbpdf}
6 \usepackage{wasysym}
7 \usepackage{ucs}
8 \usepackage[utf8]{inputenc}
9 \usepackage{pgf,pgfarrows,pgfnodes,pgfautomata,pgfheaps,pgfshade}
10 \usepackage{verbatim}
11 \usepackage{listings}
12 \usepackage{attachfile}
13 \lstset{
14 language=C++,
15 keywordstyle=\bfseries\ttfamily\color[rgb]{0,0,1},
16 identifierstyle=\ttfamily,
17 commentstyle=\color[rgb]{0.133,0.545,0.133},
18 stringstyle=\ttfamily\color[rgb]{0.627,0.126,0.941},
19 showstringspaces=false,
20 basicstyle=\scriptsize,
21 numberstyle=\tiny,
22 numbers=left,
23 stepnumber=1,
24 numbersep=10pt,
25 tabsize=2,
26 breaklines=true,
27 prebreak = \raisebox{0ex}[0ex][0ex]{\ensuremath{\hookleftarrow}},
28 breakatwhitespace=false,
29 aboveskip={1.5\baselineskip},
30 columns=fixed,
31 upquote=true,
32 extendedchars=true,
33 }
34
35 %\pdfinfo
36 %{
37 % /Title (What is Octave?)
38 % /Creator (TeX)
39 % /Author (Jordi Guti\'errez Hermoso)
40 %}
41
42
43 \title{GNU Octave\\ A free high-level tool for Scientific Computing}
44 \author[cdf, jgh]{{\bf Carlo de Falco}, Jordi Guti\'errez Hermoso}
45
46 \begin{document}
47
48 \frame[plain]{\titlepage}
49
50 \section*{}
51 \begin{frame}
52 \frametitle{Outline}
53 \tableofcontents[section=2]
54 \end{frame}
55
56 \AtBeginSection[]
57 {\frame<handout:0>{\frametitle{Outline}\tableofcontents[currentsection]}}
58
59 \AtBeginSubsection[]
60 {\frame<handout:0>{\frametitle{Outline}\tableofcontents[sectionstyle=show/hide,subsectionstyle=show/shaded/hide]}}
61
62 \newcommand<>{\highlighton}[1]{%
63 \alt#2{\structure{#1}}{{#1}}}
64
65 \newcommand{\icon}[1]{\pgfimage[height=1em]{#1}}
66
67
68
69 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
70 %%%%%%%%%% Content starts here %%%%%%%%%%
71 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
72
73 \section{What is Octave?}
74 \subsection{Definition}
75 \begin{frame}
76 \frametitle{What is Octave?}
77 \begin{block}{Octave}
78 {\it ``A \underline{free} \only<1->{\footnote{``free'' = ``libero'' $\neq$ ``gratis''}}
79 numerical environment mostly compatible with \sc{Matlab}''}\\[3mm]
80 \begin{itemize}
81 \item What is compatibility? A point of much debate...
82 \item If it works in
83 {\sc{Matlab}}, it should work in Octave.
84 \item If it breaks it is considered a bug.
85 \item If it works in Octave, it can break in {\sc{Matlab}}.
86 \end{itemize}
87 \end{block}
88 \end{frame}
89
90 \begin{frame}
91 \frametitle{Lines of code}
92 The stuff Octave is made of...
93 \pause
94 \begin{block}{Core}
95 \begin{itemize}
96 \item About 600,000 lines of C++
97 \item About 100,000 lines of m-scripts
98 \item About 50,000 lines of Fortran
99 \end{itemize}
100 \end{block}
101 \pause
102 \begin{block}{Octave-Forge}
103 \begin{itemize}
104 \item About 200,000 lines of C++
105 \item About 330,000 lines of m-scripts
106 \item About 50,000 lines of Fortran
107 \end{itemize}
108 \end{block}
109 \end{frame}
110
111
112 \begin{frame}
113 \frametitle{Features}
114 \begin{block}{Current features}
115 \begin{itemize}
116 \item N-d arrays, linear algebra, sparse matrices
117 \item Nonlinear equations
118 \item Ordinary/Algebraic Differential Equations,
119 \item Image processing, statistics, special functions
120 \item Many more...
121 \end{itemize}
122 \end{block}
123
124 \begin{block}{Features in development}
125 \begin{itemize}
126 \item GUI
127 \item JIT compiling
128 \item classdef OOP
129 %\item Least squares spectral analysis
130 \end{itemize}
131 \end{block}
132 \end{frame}
133
134 \begin{frame}
135 \frametitle{What does it look like}
136 \begin{itemize}
137 \item Primarily a CLI interface
138 \only<1>{\begin{figure}
139 \begin{center}
140 \includegraphics[height=.6\textheight]{screenshot}
141 \caption{CLI screenshot}\end{center}
142 \end{figure}}
143 \pause
144 \item Most requested feature: GUI! Will ship with next release (4.0)
145 \pause
146 \only<2->{\begin{figure}
147 \begin{center}
148 \includegraphics[height=.6\textheight]{gui_screenshot.jpg}
149 \caption{Qt based GUI development started as J. Dawid's GSoC2012 project}
150 \end{center}
151 \end{figure}}
152 \end{itemize}
153 \end{frame}
154
155
156 \subsection{History}
157
158 \begin{frame}
159 \frametitle{In the beginning... }
160
161
162 \begin{itemize}
163 \item Companion software for chemical reactor textbook by James B. Rawlings
164 and John G. Ekerdt
165 \item John W. Eaton (hereafter, jwe) started coding in 1993
166 \end{itemize}
167 \pause
168
169 \begin{block}{Rawlings said...}
170 \begin{quote}
171 \center Why don't you call it ``Octave''?
172 \end{quote}
173 \end{block}
174
175 \begin{itemize}
176 \item Octave refers to Octave Levenspiel, nothing to do with music ...
177 \end{itemize}
178
179 \end{frame}
180
181 \begin{frame}
182 \frametitle{jwe is a lone wolf...}
183
184 jwe works almost completely alone for first four or five years.
185
186 \pause
187
188 \begin{block}{In the very beginning...}
189 \begin{itemize}
190 \item No mailing lists
191 \item No widespread announcements
192 \item No VCS (these were dark times)
193 \end{itemize}
194 \end{block}
195 \end{frame}
196
197 \begin{frame}
198 \frametitle{Contributions slowly trickle in}
199 \begin{block}{Timeline}
200 \begin{itemize}
201 \item[1989] Planning stages
202 \item[1992] Development begins
203 \item[1993] First public announcement
204 \item[1994] Version 1.0
205 \item[1996] Version 2.0
206 \item[1998] Version 2.1 development
207 \item[2004] Version 2.9 in preparation for 3.0 release
208 \item[2007] Version 3.0 major upgrade
209 \item[2010] Version 3.2.4, last before using hg
210 \item[2011] Version 3.4.0
211 \item[2012] Version 3.6.4
212 \end{itemize}
213 \end{block}
214 \end{frame}
215
216 \begin{frame}
217 \frametitle{Contributions slowly trickle in}
218 \begin{block}{Milestones}
219 \begin{itemize}
220 \item[1994] Most of the current basic functionality already in.
221 (Much was written during its first two years!)
222 \pause
223 \item[1995] Structs, {\sc{Matlab}}-style plot() command.
224 \item[1998] Original sparse matrix implementation
225 \item[2001] Octave-Forge's first commit
226 \item[2006] MEX interface in core
227 \item[2007] Implementation of handle graphics, full support for sparse matrices
228 \item[2009] OpenGL plotting
229 \item[2010] -forge option for pkg.m
230 \item[2011] Profiler
231 \item[2012] Nested functions
232 \pause
233 \item[2013?] GUI, JIT compiling
234 \end{itemize}
235 \end{block}
236 \end{frame}
237
238
239 \subsection{Community dynamics}
240
241 \begin{frame}
242 \frametitle{Web resources}
243 \begin{block}{Web pages}
244 \begin{itemize}
245 \item \href{http://www.octave.org/}{Octave website}
246 \item \href{http://octave.sf.net/}{Octave-Forge website}
247 \item \href{http://wiki.octave.org/}{Octave wiki}
248 \end{itemize}
249 \end{block}
250
251 \begin{block}{Users communication}
252 \begin{itemize}
253 \item \href{https://mailman.cae.wisc.edu/listinfo/help-octave}{Octave users mailing list}
254 \item \href{https://lists.sourceforge.net/lists/listinfo/octave-dev}{Octave-Forge mailing list}
255 \item \href{http://webchat.freenode.net/?channels=octave&uio=MT1mYWxzZSYyPXRydWUmMTI9dHJ1ZQda}
256 {\#octave channel in Freenode}
257 \item \href{http://savannah.gnu.org/bugs/?group=octave}{Savannah bug tracker}
258 \end{itemize}
259 \end{block}
260 \pause
261 \begin{block}{Developers collaboration}
262 \begin{itemize}
263 \item \href{http://hg.savannah.gnu.org/hgweb/octave/shortlog}{Octave Mercurial repository}
264 \item \href{http://sourceforge.net/p/octave/code}{Octave-Forge Subversion repository}
265 \end{itemize}
266 \end{block}
267 \end{frame}
268
269 \begin{frame}
270 \frametitle{Social structure}
271 \begin{itemize}
272 \item Like all free projects, every user is a potential developer.
273 \item 15 current Core developers (with write access to repo)
274 \only<1>{\begin{figure}
275 \centering
276 \includegraphics[width=.5\linewidth]{Core-developers}
277 \end{figure}}
278 \only<2->{\item 49 currently registered 'Forge developers (38 active)}
279 \only<2>{\begin{figure}
280 \centering
281 \includegraphics[width=.6\linewidth]{Forge-developers}
282 \end{figure}}
283 \only<3->{\item 296 total contributors over all time\\}
284 {\only<3>{\fontsize{1}{.1}\selectfont
285 Ben Abbott Andy Adler Giles Anderson
286 Joel Andersson Muthiah Annamalai Marco Atzeri
287 Shai Ayal Roger Banks Ben Barrowes
288 Alexander Barth David Bateman Heinz Bauschke
289 Roman Belov Karl Berry David Billinghurst
290 Don Bindner Jakub Bogusz Moritz Borgmann
291 Paul Boven Richard Bovey John Bradshaw
292 Marcus Brinkmann Remy Bruno Ansgar Burchard
293 Marco Caliari Daniel Calvelo John C. Campbell
294 Juan Pablo Carbajal Jean-Francois Cardoso Joao Cardoso
295 Larrie Carr David Castelow Vincent Cautaerts
296 Clinton Chee Albert Chin-A-Young Carsten Clark
297 J. D. Cole Martin Costabel Michael Creel
298 Jeff Cunningham Martin Dalecki Jorge Barros de Abreu
299 Carlo de Falco Jacob Dawid Thomas D. Dean
300 Philippe Defert Bill Denney Fabian Deutsch
301 Christos Dimitrakakis David M. Doolin Carnë Draug
302 Pascal A. Dupuis John W. Eaton Dirk Eddelbuettel
303 Pieter Eendebak Paul Eggert Stephen Eglen
304 Peter Ekberg Rolf Fabian Gunnar Farnebäck
305 Stephen Fegan Ramon Garcia Fernandez Torsten Finke
306 Jose Daniel Munoz Frias Brad Froehle Castor Fu
307 Eduardo Gallestey Walter Gautschi Klaus Gebhardt
308 Driss Ghaddab Nicolo Giorgetti Michael D. Godfrey
309 Michael Goffioul Glenn Golden Tomislav Goles
310 Keith Goodman Brian Gough Steffen Groot
311 Etienne Grossmann David Grundberg Peter Gustafson
312 Kai Habel Patrick Häcker William P. Y. Hadisoeseno
313 Jaroslav Hajek Benjamin Hall Kim Hansen
314 Søren Hauberg Dave Hawthorne Daniel Heiserer
315 Martin Helm Stefan Hepp Jordi Gutiérrez Hermoso
316 Yozo Hida Ryan Hinton Roman Hodek
317 A. Scottedward Hodel Richard Allan Holcombe Tom Holroyd
318 David Hoover Kurt Hornik Christopher Hulbert
319 Cyril Humbert Teemu Ikonen Alan W. Irwin
320 Geoff Jacobsen Mats Jansson Cai Jianming
321 Steven G. Johnson Heikki Junes Matthias Jüschke
322 Atsushi Kajita Jarkko Kaleva Mohamed Kamoun
323 Lute Kamstra Fotios Kasolis Thomas Kasper
324 Joel Keay Mumit Khan Paul Kienzle
325 Aaron A. King Arno J. Klaassen Alexander Klein
326 Geoffrey Knauth Heine Kolltveit Ken Kouno
327 Kacper Kowalik Daniel Kraft Aravindh Krishnamoorthy
328 Oyvind Kristiansen Piotr Krzyzanowski Volker Kuhlmann
329 Tetsuro Kurita Miroslaw Kwasniak Rafael Laboissiere
330 Kai Labusch Claude Lacoursiere Walter Landry
331 Bill Lash Dirk Laurie Maurice LeBrun
332 Friedrich Leisch Jyh-miin Lin Timo Lindfors
333 Benjamin Lindner Ross Lippert David Livings
334 Sebastien Loisel Erik de Castro Lopo Massimo Lorenzin
335 Emil Lucretiu Hoxide Ma James Macnicol
336 Jens-Uwe Mager Rob Mahurin Ricardo Marranita
337 Orestes Mas Makoto Matsumoto Tatsuro Matsuoka
338 Laurent Mazet G. D. McBain Alexander Mamonov
339 Christoph Mayer Júlio Hoffimann Mendes Thorsten Meyer
340 Petr Mikulik Stefan Monnier Antoine Moreau
341 Kai P. Mueller Hannes Müller Victor Munoz
342 Carmen Navarrete Todd Neal Philip Nienhuis
343 Al Niessner Rick Niles Takuji Nishimura
344 Kai Noda Eric Norum Krzesimir Nowak
345 Michael O'Brien Peter O'Gorman Thorsten Ohl
346 Arno Onken Luis F. Ortiz Scott Pakin
347 Gabriele Pannocchia Sylvain Pelissier Per Persson
348 Primozz Peterlin Jim Peterson Danilo Piazzalunga
349 Nicholas Piper Elias Pipping Robert Platt
350 Hans Ekkehard Plesser Tom Poage Orion Poplawski
351 Ondrej Popp Jef Poskanzer Francesco Potortì
352 Konstantinos Poulios Jarno Rajahalme James B. Rawlings
353 Eric S. Raymond Balint Reczey Joshua Redstone
354 Lukas Reichlin Michael Reifenberger Anthony Richardson
355 Jason Riedy E. Joshua Rigler Petter Risholm
356 Matthew W. Roberts Andrew Ross Mark van Rossum
357 Joe Rothweiler Kevin Ruland Kristian Rumberg
358 Ryan Rusaw Olli Saarela Toni Saarela
359 Juhani Saastamoinen Radek Salac Ben Sapp
360 Aleksej Saushev Alois Schlögl Michel D. Schmid
361 Julian Schnidder Nicol N. Schraudolph Sebastian Schubert
362 Ludwig Schwardt Thomas L. Scofield Daniel J. Sebald
363 Dmitri A. Sergatskov Vanya Sergeev Baylis Shanks
364 Andriy Shinkarchuck Robert T. Short Joseph P. Skudlarek
365 John Smith Julius Smith Shan G. Smith
366 Peter L. Sondergaard Joerg Specht Quentin H. Spencer
367 Christoph Spiel Richard Stallman Russell Standish
368 Brett Stewart Doug Stewart Jonathan Stickel
369 Judd Storrs Thomas Stuart Ivan Sutoris
370 John Swensen Daisuke Takago Ariel Tankus
371 Matthew Tenny Georg Thimm Duncan Temple Lang
372 Kris Thielemans Olaf Till Christophe Tournery
373 Thomas Treichl Karsten Trulsen Frederick Umminger
374 Utkarsh Upadhyay Stefan van der Walt Peter Van Wieren
375 James R. Van Zandt Gregory Vanuxem Ivana Varekova
376 Thomas Walter Andreas Weber Olaf Weber
377 Thomas Weber Rik Wehbring Bob Weigel
378 Andreas Weingessel Martin Weiser Michael Weitzel
379 David Wells Fook Fah Yap Sean Young
380 Michael Zeising Federico Zenith Alex Zvoleff }}
381 \only<4->{\item How many users? Thousands? Millions?}
382 \end{itemize}
383 \end{frame}
384
385 \begin{frame}
386 \frametitle{From user to developer}
387 This is a FAQ
388 \pause
389 \begin{block}{How can I contribute?}
390 \begin{itemize}
391 \item Code (obviously)
392 \item Money (pay-what-you-need)
393 \item Documentation (especially examples)
394 \item Wiki maintenance
395 \item Help in the mailing list
396 \item Bug reporting
397 \end{itemize}
398 \end{block}
399 \pause
400 % Stick around this conference if you want to learn more about how to get involved!
401 \end{frame}
402
403 \begin{frame}
404 \frametitle{Student projects}
405 \begin{block}{Google Summer of Code }
406 \begin{itemize}
407 \item GSoC 2011
408 \begin{itemize}
409 \item Daniel Kraft, Profiler
410 \end{itemize}
411 \item GSoC 2012
412 \begin{itemize}
413 \item Jacob Dawid, Qt GUI
414 \item Max Brister, JIT
415 \item Ben Lewis, Lest Squares Spectral Analysis
416 \end{itemize}
417 \end{itemize}
418 \end{block}
419 \begin{block}{European Space Agency's Summer of Code in Space}
420 \begin{itemize}
421 \item SOCIS 2012
422 \begin{itemize}
423 \item Wendy Liu, Agora Octave
424 \item Andrius Sutas, Instrument-Control
425 \end{itemize}
426 \end{itemize}
427 \end{block}
428 \pause
429 % Stick around this conference if you want to learn more about how to get involved!
430 \end{frame}
431
432 \section{Octave and ...}
433 \subsection{Octave and Octave-Forge}
434
435 \begin{frame}[fragile]{Octave-Forge}
436 \begin{block}{Octave-Forge}
437 \href{http://octave.sf.net}{Octave Forge} Is a place for concurrently developing and distributing
438 extension packages for Octave.
439 \end{block}
440 \begin{itemize}
441 \item Each package has a \emph{maintainer} responsible for updating and releasing new versions of the package
442 \item Some packages are maintained by \emph{The Community}
443 \item Installation via an integrated \emph{package manager}
444 \end{itemize}
445 \end{frame}
446
447 \begin{frame}[fragile]{PKG}
448 \begin{lstlisting}[keywordstyle=]
449 >> pkg install -forge miscellaneous
450 For information about changes from previous versions of the miscellaneous package, run: news ("miscellaneous").
451 >> pkg list
452 Package Name | Version | Installation directory
453 ---------------------+---------+-----------------------
454 bim | 1.1.1 | ~/octave/bim-1.1.1
455 fpl | 1.3.3 | ~/octave/fpl-1.3.3
456 general | 1.3.1 | ~/octave/general-1.3.1
457 geometry | 1.6.0 | ~/octave/geometry-1.6.0
458 miscellaneous | 1.2.0 | ~/octave/miscellaneous-1.2.0
459 >> pkg load miscellaneous
460 >> pkg list
461 Package Name | Version | Installation directory
462 ---------------------+---------+-----------------------
463 bim | 1.1.1 | ~/octave/bim-1.1.1
464 fpl | 1.3.3 | ~/octave/fpl-1.3.3
465 general | 1.3.1 | ~/octave/general-1.3.1
466 geometry | 1.6.0 | ~/octave/geometry-1.6.0
467 miscellaneous *| 1.2.0 | ~/octave/miscellaneous-1.2.0
468 \end{lstlisting}
469 \end{frame}
470
471 \begin{frame}[fragile]{PKG}
472 \begin{lstlisting}[keywordstyle=]
473 >> pkg describe bim -verbose
474 ---
475 Package name:
476 bim
477 Version:
478 1.1.1
479 Short description:
480 Package for solving Diffusion Advection Reaction (DAR) Partial Differential Equations
481 Status:
482 Not loaded
483 ---
484 Provides:
485 Matrix assembly
486 bim1a_advection_diffusion
487 bim1a_advection_upwind
488 bim2a_advection_diffusion
489 ...
490 Pre-processing and Post-processing computations
491 bim2c_mesh_properties
492 ...
493 >>
494 \end{lstlisting}
495 \end{frame}
496
497 \begin{frame}[fragile]{Some interesting packages}
498 \only<1>{\includegraphics[width=.9\linewidth]{bim}}
499 \only<2>{\includegraphics[width=.9\linewidth]{msh}}
500 \only<3>{\includegraphics[width=.9\linewidth]{fpl}}
501
502 \href{http://wiki.octave.org/Bim_package}{usage examples in the wiki}
503 \end{frame}
504
505 \subsection{Octave and Matlab}
506 \begin{frame}[fragile]{Broadcasting}
507 \begin{itemize}
508 \item Since 3.6.0, Octave automatically broadcasts arrays when using elementwise binary operators.
509 \item Corresponding array dimensions must either be equal or, one of them must be 1.
510 \item In case all dimensions are equal, ordinary element-by-element arithmetic takes place.
511 \item When one of the dimensions is 1, the array with that singleton dimension gets copied along
512 that dimension until it matches the dimension of the other array.
513 \end{itemize}
514
515 \end{frame}
516
517 \begin{frame}[fragile]{Broadcasting}
518 \scriptsize
519 \begin{lstlisting}[keywordstyle=]
520 x = [1 2 3; 4 5 6; 7 8 9];
521 y = [10 20 30];
522 x + y
523 11 22 33
524 14 25 36
525 17 28 39
526 \end{lstlisting}
527 \begin{itemize}
528 \item Without broadcasting, x + y would be an error because dimensions do not agree.
529 \item With broadcasting it is as if the following operation were performed
530 \end{itemize}
531 \scriptsize
532 \begin{lstlisting}[keywordstyle=]
533 x = [1 2 3;4 5 6;7 8 9];
534 y = [10 20 30; 10 20 30; 10 20 30];
535 x + y
536 11 22 33
537 14 25 36
538 17 28 39
539 \end{lstlisting}
540 \href{http://wiki.octave.org/FAQ#How_is_Octave_different_from_Matlab.3F}{Other notable differences with Matlab, listed in the wiki}
541 \end{frame}
542 \subsection{Octave and C++}
543
544 \begin{frame}[fragile]{dld-functions}
545 Implement an Octave interpreter function in C++
546 \vspace*{-4mm}
547 \only<1>{\lstinputlisting[language=C++,linerange=1-15,firstnumber=1]{./examples/dld.cc}}
548 \only<2>{\lstinputlisting[language=C++,linerange=16-30,firstnumber=last]{./examples/dld.cc}}
549 \only<3>{\lstinputlisting[keywordstyle=]{./examples/dld_run.txt}}
550 \vspace*{-4mm}
551 \attachfile[icon=Paperclip]{./examples/dld.cc}{source code of the example}
552 \end{frame}
553
554 \begin{frame}[fragile]{liboctave}
555 Use Octave's Matrix/Array Classes in a C++ application
556 \vspace*{-4mm}
557 \only<1>{\lstinputlisting[language=C++]{./examples/standalone.cc}}
558 \only<2>{\lstinputlisting[keywordstyle=]{./examples/standalone_run.txt}}
559 \vspace*{-4mm}
560 \attachfile[icon=Paperclip]{./examples/standalone.cc}{source code of the example}
561 \end{frame}
562
563 \begin{frame}[fragile]{Embedding Octave}
564 You can embed the Octave interpreter in your C++ application
565 \only<1>{\lstinputlisting[language=C++,linerange=1-17,firstnumber=1]{./examples/embedded.cc}}
566 \only<2>{\lstinputlisting[language=C++,linerange=18-29,firstnumber=last]{./examples/embedded.cc}}
567 \pause
568 \attachfile[icon=Paperclip]{./examples/embedded.cc}{source code of the example}
569 \end{frame}
570
571 \begin{frame}[fragile]{An advanced example}
572 Add a new class to the Octave interpreter and work around Octave's pass-by-value semantics\\
573 \attachfile[icon=Paperclip]{./examples/myobject.cc}{source code of the example (.cc)}\\
574 \attachfile[icon=Paperclip]{./examples/myobject.h}{source code of the example (.h)}
575 \end{frame}
576
577
578 \subsection{Octave and Parallel Computing}
579
580 \begin{frame}[fragile]{parcellfun and pararrayfun}
581 \scriptsize
582 Parcellfun is distributed in the package ``general'' it implements parallelization via {\tt fork ()} and {\tt pipe ()}
583 \vspace*{-2mm}
584 \only<1>{\lstinputlisting[language=Octave,linerange=34-51,firstnumber=1]{./examples/parcellfun_example.m}}
585 \only<2>{\lstinputlisting[language=Octave,linerange=61-76,firstnumber=1]{./examples/parcellfun_example.m}}
586 \vspace*{-4mm}
587 \attachfile[icon=Paperclip]{./examples/parcellfun_example.m}{source code of the example}
588 \end{frame}
589
590 \begin{frame}[fragile]{openmpi\_ext}
591 \scriptsize
592 The package {\tt openmpi\_ext} provides wrappers for the main MPI functions in {\tt openmpi}
593 \vspace*{-4mm}
594 \only<1>{\includegraphics[width=.9\linewidth]{openmpi_ext}}
595 \only<2>{\lstinputlisting[language=Octave,firstnumber=1]{./examples/Pi.m}}
596 \only<3>{\lstinputlisting[language=Octave,firstnumber=1]{./examples/Pi_run.txt}}
597 \vspace*{-4mm}
598 \attachfile[icon=Paperclip]{./examples/parcellfun_example.m}{source code of the example}
599 \end{frame}
600
601 %
602 %\subsection{Octave and LifeV}
603 %\frame{}
604 %
605 %
606
607 \end{document}