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| <!DOCTYPE html> | ||
| <html lang="en"><head><meta charset="UTF-8"/><meta name="viewport" content="width=device-width, initial-scale=1.0"/><title>Distributed.jl + Threads · ThreadPinning.jl</title><meta name="title" content="Distributed.jl + Threads · ThreadPinning.jl"/><meta property="og:title" content="Distributed.jl + Threads · ThreadPinning.jl"/><meta property="twitter:title" content="Distributed.jl + Threads · ThreadPinning.jl"/><meta name="description" content="Documentation for ThreadPinning.jl."/><meta property="og:description" content="Documentation for ThreadPinning.jl."/><meta property="twitter:description" content="Documentation for ThreadPinning.jl."/><script data-outdated-warner src="../../assets/warner.js"></script><link href="https://cdnjs.cloudflare.com/ajax/libs/lato-font/3.0.0/css/lato-font.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/juliamono/0.050/juliamono.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/fontawesome.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/solid.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.2/css/brands.min.css" rel="stylesheet" type="text/css"/><link href="https://cdnjs.cloudflare.com/ajax/libs/KaTeX/0.16.8/katex.min.css" rel="stylesheet" type="text/css"/><script>documenterBaseURL="../.."</script><script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.6/require.min.js" data-main="../../assets/documenter.js"></script><script src="../../search_index.js"></script><script src="../../siteinfo.js"></script><script src="../../../versions.js"></script><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../../assets/themes/catppuccin-mocha.css" data-theme-name="catppuccin-mocha"/><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../../assets/themes/catppuccin-macchiato.css" data-theme-name="catppuccin-macchiato"/><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../../assets/themes/catppuccin-frappe.css" data-theme-name="catppuccin-frappe"/><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../../assets/themes/catppuccin-latte.css" data-theme-name="catppuccin-latte"/><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../../assets/themes/documenter-dark.css" data-theme-name="documenter-dark" data-theme-primary-dark/><link class="docs-theme-link" rel="stylesheet" type="text/css" href="../../assets/themes/documenter-light.css" data-theme-name="documenter-light" data-theme-primary/><script src="../../assets/themeswap.js"></script></head><body><div id="documenter"><nav class="docs-sidebar"><a class="docs-logo" href="../../"><img src="../../assets/logo.png" alt="ThreadPinning.jl logo"/></a><div class="docs-package-name"><span class="docs-autofit"><a href="../../">ThreadPinning.jl</a></span></div><button class="docs-search-query input is-rounded is-small is-clickable my-2 mx-auto py-1 px-2" id="documenter-search-query">Search docs (Ctrl + /)</button><ul class="docs-menu"><li><a class="tocitem" href="../../">ThreadPinning</a></li><li><span class="tocitem">Examples</span><ul><li><a class="tocitem" href="../ex_pinning_julia_threads/">Pinning Julia Threads</a></li><li><a class="tocitem" href="../ex_pinning_tasks/">Pinning Julia Tasks</a></li><li><a class="tocitem" href="../ex_blas/">Pinning BLAS Threads</a></li><li><a class="tocitem" href="../ex_mpi/">MPI + Threads</a></li><li class="is-active"><a class="tocitem" href>Distributed.jl + Threads</a><ul class="internal"><li><a class="tocitem" href="#Basic-example"><span>Basic example</span></a></li></ul></li><li><a class="tocitem" href="../ex_affinity/">External Affinity Mask</a></li></ul></li><li><span class="tocitem">References</span><ul><li><a class="tocitem" href="../../refs/api_pinning/">API - Pinning</a></li><li><a class="tocitem" href="../../refs/api_querying/">API - Querying</a></li><li><a class="tocitem" href="../../refs/api_other/">API - Other</a></li><li><a class="tocitem" href="../../refs/internals/">Internals</a></li></ul></li></ul><div class="docs-version-selector field has-addons"><div class="control"><span class="docs-label button is-static is-size-7">Version</span></div><div class="docs-selector control is-expanded"><div class="select is-fullwidth is-size-7"><select id="documenter-version-selector"></select></div></div></div></nav><div class="docs-main"><header class="docs-navbar"><a class="docs-sidebar-button docs-navbar-link fa-solid fa-bars is-hidden-desktop" id="documenter-sidebar-button" href="#"></a><nav class="breadcrumb"><ul class="is-hidden-mobile"><li><a class="is-disabled">Examples</a></li><li class="is-active"><a href>Distributed.jl + Threads</a></li></ul><ul class="is-hidden-tablet"><li class="is-active"><a href>Distributed.jl + Threads</a></li></ul></nav><div class="docs-right"><a class="docs-navbar-link" href="https://github.com/carstenbauer/ThreadPinning.jl" title="View the repository on GitHub"><span class="docs-icon fa-brands"></span><span class="docs-label is-hidden-touch">GitHub</span></a><a class="docs-navbar-link" href="https://github.com/carstenbauer/ThreadPinning.jl/blob/main/docs/src/examples/ex_distributed.md#" title="Edit source on GitHub"><span class="docs-icon fa-solid"></span></a><a class="docs-settings-button docs-navbar-link fa-solid fa-gear" id="documenter-settings-button" href="#" title="Settings"></a><a class="docs-article-toggle-button fa-solid fa-chevron-up" id="documenter-article-toggle-button" href="javascript:;" title="Collapse all docstrings"></a></div></header><article class="content" id="documenter-page"><h1 id="Distributed.jl-Threads"><a class="docs-heading-anchor" href="#Distributed.jl-Threads">Distributed.jl + Threads</a><a id="Distributed.jl-Threads-1"></a><a class="docs-heading-anchor-permalink" href="#Distributed.jl-Threads" title="Permalink"></a></h1><p>ThreadPinning.jl has dedicated support for pinning Julia threads of Julia workers (Distributed.jl) in multi-processing applications, see <a href="../../refs/api_querying/#api_distributed_querying">Querying - Distributed.jl</a> and <a href="../../refs/api_pinning/#api_distributed_pinning">Pinning - Distributed.jl</a>. Note that you can use these tools irrespective of whether your parallel application is pure (i.e. each Julia workers runs a single Julia thread) or hybrid (i.e. each Julia worker runs multiple Julia threads).</p><h2 id="Basic-example"><a class="docs-heading-anchor" href="#Basic-example">Basic example</a><a id="Basic-example-1"></a><a class="docs-heading-anchor-permalink" href="#Basic-example" title="Permalink"></a></h2><pre><code class="language-julia hljs">julia> using Distributed | ||
|
|
||
| julia> withenv("JULIA_NUM_THREADS" => 2) do | ||
| addprocs(4) # spawn 4 workers with 2 threads each | ||
| end | ||
| 4-element Vector{Int64}: | ||
| 2 | ||
| 3 | ||
| 4 | ||
| 5 | ||
|
|
||
| julia> @everywhere using ThreadPinning | ||
|
|
||
| julia> distributed_getcpuids() | ||
| Dict{Int64, Vector{Int64}} with 4 entries: | ||
| 5 => [246, 185] | ||
| 4 => [198, 99] | ||
| 2 => [135, 226] | ||
| 3 => [78, 184] | ||
|
|
||
| julia> distributed_getispinned() # none pinned yet | ||
| Dict{Int64, Vector{Bool}} with 4 entries: | ||
| 5 => [0] | ||
| 4 => [0] | ||
| 2 => [0] | ||
| 3 => [0] | ||
|
|
||
| julia> distributed_pinthreads(:sockets) # pin to sockets (round-robin) | ||
|
|
||
| julia> distributed_getispinned() # all pinned | ||
| Dict{Int64, Vector{Bool}} with 4 entries: | ||
| 5 => [1, 1] | ||
| 4 => [1, 1] | ||
| 2 => [1, 1] | ||
| 3 => [1, 1] | ||
|
|
||
| julia> distributed_getcpuids() | ||
| Dict{Int64, Vector{Int64}} with 4 entries: | ||
| 5 => [66, 67] | ||
| 4 => [2, 3] | ||
| 2 => [0, 1] | ||
| 3 => [64, 65] | ||
|
|
||
| julia> socket(1, 1:4), socket(2, 1:4) # check | ||
| ([0, 1, 2, 3], [64, 65, 66, 67]) | ||
|
|
||
| julia> distributed_pinthreads(:numa) # pin to numa domains (round-robin) | ||
|
|
||
| julia> distributed_getcpuids() | ||
| Dict{Int64, Vector{Int64}} with 4 entries: | ||
| 5 => [48, 49] | ||
| 4 => [32, 33] | ||
| 2 => [0, 1] | ||
| 3 => [16, 17] | ||
|
|
||
| julia> numa(1, 1:2), numa(2, 1:2), numa(3, 1:2), numa(4, 1:2) # check | ||
| ([0, 1], [16, 17], [32, 33], [48, 49])</code></pre></article><nav class="docs-footer"><a class="docs-footer-prevpage" href="../ex_mpi/">« MPI + Threads</a><a class="docs-footer-nextpage" href="../ex_affinity/">External Affinity Mask »</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="auto">Automatic (OS)</option><option value="documenter-light">documenter-light</option><option value="documenter-dark">documenter-dark</option><option value="catppuccin-latte">catppuccin-latte</option><option value="catppuccin-frappe">catppuccin-frappe</option><option value="catppuccin-macchiato">catppuccin-macchiato</option><option value="catppuccin-mocha">catppuccin-mocha</option></select></div></p><hr/><p>This document was generated with <a href="https://github.com/JuliaDocs/Documenter.jl">Documenter.jl</a> version 1.5.0 on <span class="colophon-date" title="Wednesday 7 August 2024 12:21">Wednesday 7 August 2024</span>. Using Julia version 1.10.4.</p></section><footer class="modal-card-foot"></footer></div></div></div></body></html> |
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