build based on 665c853

2026-11-15 05:57:17 +01:00 · 2023-09-05 15:07:59 +00:00
1 parent 355180f81b
commit face1ca615
@@ -14,4 +14,4 @@
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-</script></article><nav class="docs-footer"><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Wednesday 30 August 2023 10:26">Wednesday 30 August 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
+</script></article><nav class="docs-footer"><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Tuesday 5 September 2023 15:07">Tuesday 5 September 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
@@ -14,4 +14,4 @@
    var myIframe = document.getElementById("notebook");
    iFrameResize({log:true}, myIframe);	
 });
-</script></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../jacobi_method/">« Jacobi method</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Wednesday 30 August 2023 10:26">Wednesday 30 August 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
+</script></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../jacobi_method/">« Jacobi method</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Tuesday 5 September 2023 15:07">Tuesday 5 September 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
@@ -6,7 +6,7 @@ MPI.Init()
 comm = MPI.COMM_WORLD
 rank = MPI.Comm_rank(comm)
 nranks = MPI.Comm_size(comm)
-println(&quot;Hello world, I am rank $rank of $nranks&quot;)</code></pre><p>As you can see from this example, one can access MPI from Julia in a clean way, without type annotations and other complexities of C/C++ code.</p><p>Now, run the file from the REPL</p><pre><code class="language-julia hljs">julia&gt; incude(&quot;hello_mpi.jl&quot;)</code></pre><p>It probably didn&#39;t work, right? Read the error message and note that the MPI package needs to be installed to run this code.</p><p>To install a package, we need to enter <em>package</em> mode. Remember that we entered into help mode by typing <code>?</code>. Package mode is activated by typing <code>]</code> : </p><pre><code class="language-julia hljs">julia&gt; ]</code></pre><p>At this point, the prompt should have changed to <code>(@v1.8) pkg&gt;</code> indicating that we are in package mode. The text between the parentheses indicates which is the active <em>project</em>, i.e., where packages are going to be installed. In this case, we are working with the global project associated with our Julia installation (which is Julia 1.8 in this example, but it can be another version in your case).</p><p>To install the MPI package, type</p><pre><code class="language-julia hljs">(@v1.8) pkg&gt; add MPI</code></pre><p>Congrats, you have installed MPI!</p><div class="admonition is-info"><header class="admonition-header">Note</header><div class="admonition-body"><p>Many Julia package names end with <code>.jl</code>. This is just a way of signaling that a package is written in Julia. When using such packages, the <code>.jl</code> needs to be omitted. In this case, we have isntalled the <code>MPI.jl</code> package even though we have only typed <code>MPI</code> in the REPL.</p></div></div><div class="admonition is-info"><header class="admonition-header">Note</header><div class="admonition-body"><p>The package you have installed it is the Julia interface to MPI, called  <code>MPI.jl</code>. Note that it is not a MPI library by itself. It is just a thin wrapper between MPI and Julia. To use this interface, you need an actual MPI library installed in your system such as OpenMPI or MPICH. Julia downloads and installs a MPI library for you, but it is also possible to use a MPI library already available in your system. This is useful, e.g., when running on HPC clusters. See the documentation of <code>MPI.jl</code> for further details.</p></div></div><p>To check that the package was installed properly, exit package mode by pressing the backspace key several times, and run it again</p><pre><code class="language-julia hljs">julia&gt; incude(&quot;hello_mpi.jl&quot;)</code></pre><p>Now, it should work, but you probably get output from a single MPI rank only.</p><h3 id="Running-MPI-code"><a class="docs-heading-anchor" href="#Running-MPI-code">Running MPI code</a><a id="Running-MPI-code-1"></a><a class="docs-heading-anchor-permalink" href="#Running-MPI-code" title="Permalink"></a></h3><p>To run MPI applications in parallel, you need a launcher like <code>mpiexec</code>. MPI codes written in Julia are not an exception to this rule. From the system terminal, you can run</p><pre><code class="nohighlight hljs">$ mpiexec -np 4 julia hello_mpi.jl</code></pre><p>But it will probably not work since the version of <code>mpiexec</code> needs to match with the MPI version we are using from Julia. You can find the path to the <code>mpiexec</code> binary you need to use with these commands</p><pre><code class="language-julia hljs">julia&gt; using MPI
+println(&quot;Hello world, I am rank $rank of $nranks&quot;)</code></pre><p>As you can see from this example, one can access MPI from Julia in a clean way, without type annotations and other complexities of C/C++ code.</p><p>Now, run the file from the REPL</p><pre><code class="language-julia hljs">julia&gt; include(&quot;hello_mpi.jl&quot;)</code></pre><p>It probably didn&#39;t work, right? Read the error message and note that the MPI package needs to be installed to run this code.</p><p>To install a package, we need to enter <em>package</em> mode. Remember that we entered into help mode by typing <code>?</code>. Package mode is activated by typing <code>]</code> : </p><pre><code class="language-julia hljs">julia&gt; ]</code></pre><p>At this point, the prompt should have changed to <code>(@v1.8) pkg&gt;</code> indicating that we are in package mode. The text between the parentheses indicates which is the active <em>project</em>, i.e., where packages are going to be installed. In this case, we are working with the global project associated with our Julia installation (which is Julia 1.8 in this example, but it can be another version in your case).</p><p>To install the MPI package, type</p><pre><code class="language-julia hljs">(@v1.8) pkg&gt; add MPI</code></pre><p>Congrats, you have installed MPI!</p><div class="admonition is-info"><header class="admonition-header">Note</header><div class="admonition-body"><p>Many Julia package names end with <code>.jl</code>. This is just a way of signaling that a package is written in Julia. When using such packages, the <code>.jl</code> needs to be omitted. In this case, we have isntalled the <code>MPI.jl</code> package even though we have only typed <code>MPI</code> in the REPL.</p></div></div><div class="admonition is-info"><header class="admonition-header">Note</header><div class="admonition-body"><p>The package you have installed it is the Julia interface to MPI, called  <code>MPI.jl</code>. Note that it is not a MPI library by itself. It is just a thin wrapper between MPI and Julia. To use this interface, you need an actual MPI library installed in your system such as OpenMPI or MPICH. Julia downloads and installs a MPI library for you, but it is also possible to use a MPI library already available in your system. This is useful, e.g., when running on HPC clusters. See the documentation of <code>MPI.jl</code> for further details.</p></div></div><p>To check that the package was installed properly, exit package mode by pressing the backspace key several times, and run it again</p><pre><code class="language-julia hljs">julia&gt; include(&quot;hello_mpi.jl&quot;)</code></pre><p>Now, it should work, but you probably get output from a single MPI rank only.</p><h3 id="Running-MPI-code"><a class="docs-heading-anchor" href="#Running-MPI-code">Running MPI code</a><a id="Running-MPI-code-1"></a><a class="docs-heading-anchor-permalink" href="#Running-MPI-code" title="Permalink"></a></h3><p>To run MPI applications in parallel, you need a launcher like <code>mpiexec</code>. MPI codes written in Julia are not an exception to this rule. From the system terminal, you can run</p><pre><code class="nohighlight hljs">$ mpiexec -np 4 julia hello_mpi.jl</code></pre><p>But it will probably not work since the version of <code>mpiexec</code> needs to match with the MPI version we are using from Julia. You can find the path to the <code>mpiexec</code> binary you need to use with these commands</p><pre><code class="language-julia hljs">julia&gt; using MPI
 julia&gt; MPI.mpiexec_path</code></pre><p>and then try again</p><pre><code class="nohighlight hljs">$ /path/to/my/mpiexec -np 4 julia hello_mpi.jl</code></pre><p>with your particular path.</p><p>However, this is not very convenient. Don&#39;t worry if you could not make it work! A more elegant way to run MPI code is from the Julia REPL directly, by using these commands:</p><pre><code class="language-julia hljs">julia&gt; using MPI
 julia&gt; mpiexec(cmd-&gt;run(`$cmd -np 4 julia hello_mpi.jl`))</code></pre><p>Now, you should see output from 4 ranks.</p><h2 id="Package-manager"><a class="docs-heading-anchor" href="#Package-manager">Package manager</a><a id="Package-manager-1"></a><a class="docs-heading-anchor-permalink" href="#Package-manager" title="Permalink"></a></h2><h3 id="Installing-packages-locally"><a class="docs-heading-anchor" href="#Installing-packages-locally">Installing packages locally</a><a id="Installing-packages-locally-1"></a><a class="docs-heading-anchor-permalink" href="#Installing-packages-locally" title="Permalink"></a></h3><p>We have installed the <code>MPI</code> package globally and it will be available in all Julia sessions. However, in some situations, we want to work with different versions of the same package or to install packages in an isolated way to avoid potential conflicts with other packages. This can be done by using local projects.</p><p>A project is simply a folder in the hard disk. To use a particular folder as your project, you need to <em>activate</em> it. This is done by entering package mode and using the <code>activate</code> command followed by the path to the folder you want to activate.</p><pre><code class="language-julia hljs">(@v1.8) pkg&gt; activate .</code></pre><p>The previous command will activate the current working directory. Note that the dot <code>.</code> is indeed the path to the current folder.</p><p>The prompt has changed to <code>(lessons) pkg&gt;</code> indicating that we are in the project within the <code>lessons</code> folder. The particular folder name can be different in your case.</p><div class="admonition is-success"><header class="admonition-header">Tip</header><div class="admonition-body"><p>You can activate a project directly when opening Julia from the terminal using the <code>--project</code> flag. The command <code>$ julia --project=.</code> will open Julia and activate a project in the current directory. You can also achieve the same effect by setting the environment variable  <code>JULIA_PROJECT</code> with the path of the folder you want to activate.</p></div></div><div class="admonition is-info"><header class="admonition-header">Note</header><div class="admonition-body"><p>The active project folder and the current working directory are two independent concepts! For instance,  <code>(@v1.8) pkg&gt; activate folderB</code> and then <code>julia&gt; cd(&quot;folderA&quot;)</code>, will activate the project in <code>folderB</code> and change the current working directory to <code>folderA</code>.</p></div></div><p>At this point all package-related operations will be local to the new project. For instance, install the <code>DataFrames</code> package.</p><pre><code class="language-julia hljs">(lessons) pkg&gt; add DataFrames</code></pre><p>Use the package to check that it is installed</p><pre><code class="language-julia hljs">julia&gt; using DataFrames
 julia&gt; DataFrame(a=[1,2],b=[3,4])</code></pre><p>Now, we can return to the global project to check that <code>DataFrames</code> has not been installed there. To return to the global environment, use <code>activate</code> without a folder name.</p><pre><code class="language-julia hljs">(lessons) pkg&gt; activate</code></pre><p>The prompt is again <code>(@v1.8) pkg&gt;</code></p><p>Now, try to use <code>DataFrames</code>.</p><pre><code class="language-julia hljs">julia&gt; using DataFrames
@@ -14,4 +14,4 @@ julia&gt; DataFrame(a=[1,2],b=[3,4])</code></pre><p>You should get an error or a
 BenchmarkTools = &quot;6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf&quot;
 DataFrames = &quot;a93c6f00-e57d-5684-b7b6-d8193f3e46c0&quot;
 MPI = &quot;da04e1cc-30fd-572f-bb4f-1f8673147195&quot;</code></pre><p>Copy the contents of previous code block into a file called  <code>Project.toml</code> and place it in an empty folder named <code>newproject</code>. It is important that the file is named <code>Project.toml</code>. You can create a new folder from the REPL with</p><pre><code class="language-julia hljs">julia&gt; mkdir(&quot;newproject&quot;)</code></pre><p>To install all the packages registered in this file you need to activate the folder containing your <code>Project.toml</code> file</p><pre><code class="language-julia hljs">(@v1.8) pkg&gt; activate newproject</code></pre><p>and then <em>instantiating</em> it</p><pre><code class="language-julia hljs">(newproject) pkg&gt; instantiate</code></pre><p>The instantiate command will download and install all listed packages and their dependencies in just one click.</p><h3 id="Getting-help-in-package-mode"><a class="docs-heading-anchor" href="#Getting-help-in-package-mode">Getting help in package mode</a><a id="Getting-help-in-package-mode-1"></a><a class="docs-heading-anchor-permalink" href="#Getting-help-in-package-mode" title="Permalink"></a></h3><p>You can get help about a particular package operator by writing <code>help</code> in front of it</p><pre><code class="language-julia hljs">(@v1.8) pkg&gt; help activate</code></pre><p>You can get an overview of all package commands by typing <code>help</code> alone</p><pre><code class="language-julia hljs">(@v1.8) pkg&gt; help</code></pre><h3 id="Package-operations-in-Julia-code"><a class="docs-heading-anchor" href="#Package-operations-in-Julia-code">Package operations in Julia code</a><a id="Package-operations-in-Julia-code-1"></a><a class="docs-heading-anchor-permalink" href="#Package-operations-in-Julia-code" title="Permalink"></a></h3><p>In some situations it is required to use package commands in Julia code, e.g., to automatize installation and deployment of Julia applications. This can be done using the <code>Pkg</code> package. For instance</p><pre><code class="language-julia hljs">julia&gt; using Pkg
-julia&gt; Pkg.status()</code></pre><p>is equivalent to calling <code>status</code> in package mode.</p><pre><code class="language-julia hljs">(@v1.8) pkg&gt; status</code></pre><h2 id="Conclusion"><a class="docs-heading-anchor" href="#Conclusion">Conclusion</a><a id="Conclusion-1"></a><a class="docs-heading-anchor-permalink" href="#Conclusion" title="Permalink"></a></h2><p>We have learned the basics of how to work with Julia. If you want to further dig into the topics we have covered here, you can take a look at the following links:</p><ul><li><a href="https://docs.julialang.org/en/v1/manual/getting-started/">Julia Manual</a></li><li><a href="https://pkgdocs.julialang.org/v1/getting-started/">Package manager</a></li></ul></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../">« Home</a><a class="docs-footer-nextpage" href="../julia_basics/">Julia Basics »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Wednesday 30 August 2023 10:26">Wednesday 30 August 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
+julia&gt; Pkg.status()</code></pre><p>is equivalent to calling <code>status</code> in package mode.</p><pre><code class="language-julia hljs">(@v1.8) pkg&gt; status</code></pre><h2 id="Conclusion"><a class="docs-heading-anchor" href="#Conclusion">Conclusion</a><a id="Conclusion-1"></a><a class="docs-heading-anchor-permalink" href="#Conclusion" title="Permalink"></a></h2><p>We have learned the basics of how to work with Julia. If you want to further dig into the topics we have covered here, you can take a look at the following links:</p><ul><li><a href="https://docs.julialang.org/en/v1/manual/getting-started/">Julia Manual</a></li><li><a href="https://pkgdocs.julialang.org/v1/getting-started/">Package manager</a></li></ul></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../">« Home</a><a class="docs-footer-nextpage" href="../julia_basics/">Julia Basics »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Tuesday 5 September 2023 15:07">Tuesday 5 September 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
@@ -2,4 +2,4 @@
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href>Home</a></li></ul></nav><div class="docs-right"><a class="docs-edit-link" href="https://github.com/fverdugo/XM_40017/blob/main/docs/src/index.md#" title="Edit on GitHub"><span class="docs-icon fab"></span><span class="docs-label is-hidden-touch">Edit on GitHub</span></a><a class="docs-settings-button fas fa-cog" id="documenter-settings-button" href="#" title="Settings"></a><a class="docs-sidebar-button fa fa-bars is-hidden-desktop" id="documenter-sidebar-button" href="#"></a></div></header><article class="content" id="documenter-page"><h1 id="Programming-Large-Scale-Parallel-Systems-(XM_40017)"><a class="docs-heading-anchor" href="#Programming-Large-Scale-Parallel-Systems-(XM_40017)">Programming Large-Scale Parallel Systems (XM_40017)</a><a id="Programming-Large-Scale-Parallel-Systems-(XM_40017)-1"></a><a class="docs-heading-anchor-permalink" href="#Programming-Large-Scale-Parallel-Systems-(XM_40017)" title="Permalink"></a></h1><p>Welcome to the interactive lecture notes of the <a href="https:Line truncated
 julia&gt; Pkg.add(&quot;IJulia&quot;)
 julia&gt; using IJulia
-julia&gt; notebook()</code></pre><ul><li>These commands will open a jupyter in your web browser. Navigate in jupyter to the notebook file you have downloaded and open it.</li></ul><h2 id="Authors"><a class="docs-heading-anchor" href="#Authors">Authors</a><a id="Authors-1"></a><a class="docs-heading-anchor-permalink" href="#Authors" title="Permalink"></a></h2><p>This material is created by <a href="https://github.com/fverdugo/">Francesc Verdugo</a> with the help of <a href="https://www.linkedin.com/in/gelieza/">Gelieza Kötterheinrich</a>. Part of the notebooks are based on the course slides by <a href="https://www.vuhpdc.net/henri-bal/">Henri Bal</a>.</p><h2 id="License"><a class="docs-heading-anchor" href="#License">License</a><a id="License-1"></a><a class="docs-heading-anchor-permalink" href="#License" title="Permalink"></a></h2><p>All material on this page that is original to this course may be used under a <a href="https://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a> license.</p><h2 id="Acknowledgment"><a class="docs-heading-anchor" href="#Acknowledgment">Acknowledgment</a><a id="Acknowledgment-1"></a><a class="docs-heading-anchor-permalink" href="#Acknowledgment" title="Permalink"></a></h2><p>This page was created with the support of the Faculty of Science of <a href="https://vu.nl">Vrije Universiteit Amsterdam</a> in the framework of the project &quot;Interactive lecture notes and exercises for the Programming Large-Scale Parallel Systems course&quot; funded by the &quot;Innovation budget BETA 2023 Studievoorschotmiddelen (SVM) towards Activated Blended Learning&quot;.</p></article><nav class="docs-footer"><a class="docs-footer-nextpage" href="getting_started_with_julia/">Getting started »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Wednesday 30 August 2023 10:26">Wednesday 30 August 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
+julia&gt; notebook()</code></pre><ul><li>These commands will open a jupyter in your web browser. Navigate in jupyter to the notebook file you have downloaded and open it.</li></ul><h2 id="Authors"><a class="docs-heading-anchor" href="#Authors">Authors</a><a id="Authors-1"></a><a class="docs-heading-anchor-permalink" href="#Authors" title="Permalink"></a></h2><p>This material is created by <a href="https://github.com/fverdugo/">Francesc Verdugo</a> with the help of <a href="https://www.linkedin.com/in/gelieza/">Gelieza Kötterheinrich</a>. Part of the notebooks are based on the course slides by <a href="https://www.vuhpdc.net/henri-bal/">Henri Bal</a>.</p><h2 id="License"><a class="docs-heading-anchor" href="#License">License</a><a id="License-1"></a><a class="docs-heading-anchor-permalink" href="#License" title="Permalink"></a></h2><p>All material on this page that is original to this course may be used under a <a href="https://creativecommons.org/licenses/by/4.0/">CC BY 4.0</a> license.</p><h2 id="Acknowledgment"><a class="docs-heading-anchor" href="#Acknowledgment">Acknowledgment</a><a id="Acknowledgment-1"></a><a class="docs-heading-anchor-permalink" href="#Acknowledgment" title="Permalink"></a></h2><p>This page was created with the support of the Faculty of Science of <a href="https://vu.nl">Vrije Universiteit Amsterdam</a> in the framework of the project &quot;Interactive lecture notes and exercises for the Programming Large-Scale Parallel Systems course&quot; funded by the &quot;Innovation budget BETA 2023 Studievoorschotmiddelen (SVM) towards Activated Blended Learning&quot;.</p></article><nav class="docs-footer"><a class="docs-footer-nextpage" href="getting_started_with_julia/">Getting started »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Tuesday 5 September 2023 15:07">Tuesday 5 September 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
@@ -14,4 +14,4 @@
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 });
-</script></article><nav class="docs-footer"><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Wednesday 30 August 2023 10:26">Wednesday 30 August 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
+</script></article><nav class="docs-footer"><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Tuesday 5 September 2023 15:07">Tuesday 5 September 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
@@ -14,4 +14,4 @@
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    iFrameResize({log:true}, myIframe);	
 });
-</script></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../matrix_matrix/">« Matrix-matrix multiplication</a><a class="docs-footer-nextpage" href="../asp/">All pairs of shortest paths »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Wednesday 30 August 2023 10:26">Wednesday 30 August 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
+</script></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../matrix_matrix/">« Matrix-matrix multiplication</a><a class="docs-footer-nextpage" href="../asp/">All pairs of shortest paths »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Tuesday 5 September 2023 15:07">Tuesday 5 September 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
@@ -14,4 +14,4 @@
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 });
-</script></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../julia_basics/">« Julia Basics</a><a class="docs-footer-nextpage" href="../julia_distributed/">Distributed computing in Julia »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Wednesday 30 August 2023 10:26">Wednesday 30 August 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
+</script></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../julia_basics/">« Julia Basics</a><a class="docs-footer-nextpage" href="../julia_distributed/">Distributed computing in Julia »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Tuesday 5 September 2023 15:07">Tuesday 5 September 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
@@ -14,4 +14,4 @@
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    iFrameResize({log:true}, myIframe);	
 });
-</script></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../getting_started_with_julia/">« Getting started</a><a class="docs-footer-nextpage" href="../julia_async/">Asynchronous programming in Julia »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Wednesday 30 August 2023 10:26">Wednesday 30 August 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
+</script></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../getting_started_with_julia/">« Getting started</a><a class="docs-footer-nextpage" href="../julia_async/">Asynchronous programming in Julia »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Tuesday 5 September 2023 15:07">Tuesday 5 September 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
@@ -14,4 +14,4 @@
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    iFrameResize({log:true}, myIframe);	
 });
-</script></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../julia_async/">« Asynchronous programming in Julia</a><a class="docs-footer-nextpage" href="../mpi_tutorial/">Distributed computing with MPI »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Wednesday 30 August 2023 10:26">Wednesday 30 August 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
+</script></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../julia_async/">« Asynchronous programming in Julia</a><a class="docs-footer-nextpage" href="../mpi_tutorial/">Distributed computing with MPI »</a><div class="flexbox-break"></div><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Tuesday 5 September 2023 15:07">Tuesday 5 September 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
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+</script></article><nav class="docs-footer"><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Tuesday 5 September 2023 15:07">Tuesday 5 September 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
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+</script></article><nav class="docs-footer"><p class="footer-message">Powered by <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> and the <a href="https://julialang.org/">Julia Programming Language</a>.</p></nav></div><div class="modal" id="documenter-settings"><div class="modal-background"></div><div class="modal-card"><header class="modal-card-head"><p class="modal-card-title">Settings</p><button class="delete"></button></header><section class="modal-card-body"><p><label class="label">Theme</label><div class="select"><select id="documenter-themepicker"><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 0.27.25 on <span class="colophon-date" title="Tuesday 5 September 2023 15:07">Tuesday 5 September 2023</span>. Using Julia version 1.9.3.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html>
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Then,  press Ctrl+Shift+P to open the command bar, and execute Julia: Start REPL. If this does not work, make sure you have the Julia extension for VSCode installed. Independently of the method you use, opening Julia results in a window with some text ending with:","category":"page"},{"location":"getting_started_with_julia/","page":"Getting started","title":"Getting started","text":"julia>","category":"page"},{"location":"getting_started_with_julia/","page":"Getting started","title":"Getting started","text":"You have just opened the Julia read-evaluate-print loop, or simply the Julia REPL. Congrats! You will spend most of time using the REPL, when working in Julia. The REPL is a console waiting for user input. Just as in other consoles, the string of text right before the input area (julia> in the case) is called the command prompt or simply the prompt.","category":"page"},{"location":"getting_started_with_julia/#Basic-usage","page":"Getting started","title":"Basic usage","text":"","category":"section"},{"location":"getting_started_with_julia/","page":"Getting started","title":"Getting started","text":"The usage of the REPL is as follows:","category":"page"},{"location":"getting_started_with_julia/","page":"Getting started","title":"Getting started","text":"You write some input\npress enter\nyou get the output","category":"page"},{"location":"getting_started_with_julia/","page":"Getting started","title":"Getting started","text":"For instance, try this","category":"page"},{"location":"getting_started_with_julia/","page":"Getting started","title":"Getting started","text":"julia> 1 + 1","category":"page"},{"location":Line truncated
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