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Felix Palmen :freebsd: :c64:Fixed cancelling a thread job in <a href="https://mastodon.bsd.cafe/tags/poser" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#poser</a>'s <a href="https://mastodon.bsd.cafe/tags/threadpool" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#threadpool</a>. Using a semaphore to do this seems reliable 😎 Oh my. <a href="https://mastodon.bsd.cafe/tags/Multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Multithreading</a>, <a href="https://mastodon.bsd.cafe/tags/synchronization" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#synchronization</a>, async <a href="https://mastodon.bsd.cafe/tags/Unix" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Unix</a> <a href="https://mastodon.bsd.cafe/tags/signals" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#signals</a>, this is pure "fun" ... 🙈 <a href="https://github.com/Zirias/poser/commit/aa4e02b728a549f0e3c4687750b90749d48fcfdc" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/Zirias/poser/commit/aa4e02b728a549f0e3c4687750b90749d48fcfdc</a><a href="https://mastodon.bsd.cafe/tags/C" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#C</a> <a href="https://mastodon.bsd.cafe/tags/coding" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#coding</a>

Dr. Moritz Lehmann<a href="https://mast.hpc.social/tags/FluidX3D" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#FluidX3D</a> <a href="https://mast.hpc.social/tags/CFD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CFD</a> v3.2 is out! I've implemented the much requested <a href="https://mast.hpc.social/tags/GPU" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#GPU</a> summation for object force/torque; it's ~20x faster than <a href="https://mast.hpc.social/tags/CPU" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CPU</a> <a href="https://mast.hpc.social/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a>. 🖖😋 Horizontal sum in <a href="https://mast.hpc.social/tags/OpenCL" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#OpenCL</a> was a nice exercise - first local memory reduction and then hardware-supported atomic floating-point add in VRAM, in a single-stage kernel. Hammering atomics isn't too bad as each of the ~10-340 workgroups dispatched at a time does only a single atomic add. Also improved volumetric <a href="https://mast.hpc.social/tags/raytracing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#raytracing</a>! <a href="https://github.com/ProjectPhysX/FluidX3D/releases/tag/v3.2" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/ProjectPhysX/FluidX3D/releases/tag/v3.2</a>

Joseph QuigleySurely it’s not a multithreaded issue? No, it’s definitely not.It an multithreading was issue. 😜 <a href="https://hachyderm.io/tags/programming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#programming</a> <a href="https://hachyderm.io/tags/swift" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#swift</a> <a href="https://hachyderm.io/tags/developer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#developer</a> <a href="https://hachyderm.io/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a>

Laurent EspitallierFLAC 1.5 : l’encodage multithread est enfin disponible <a href="https://goodtech.info/flac-1-5-lencodage-multithread-est-enfin-disponible" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://goodtech.info/flac-1-5-lencodage-multithread-est-enfin-disponible</a> <a href="https://mastouille.fr/tags/codec" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#codec</a> <a href="https://mastouille.fr/tags/musique" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#musique</a> <a href="https://mastouille.fr/tags/open_source" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#open_source</a> <a href="https://mastouille.fr/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a> <a href="https://mastouille.fr/tags/encodage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#encodage</a> <a href="https://mastouille.fr/tags/flac" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#flac</a> <a href="https://mastouille.fr/tags/compression" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#compression</a> <a href="https://mastouille.fr/tags/opensource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#opensource</a> <a href="https://mastouille.fr/tags/audio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#audio</a>

Giuseppe BilottaRemember when I mentioned we had ported our <a href="https://fediscience.org/tags/fire" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fire</a> propagation <a href="https://fediscience.org/tags/cellularAutomaton" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cellularAutomaton</a> from <a href="https://fediscience.org/tags/Python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Python</a> to <a href="https://fediscience.org/tags/Julia" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Julia</a>, gaining performance and the ability to parallelize more easily and efficiently?A couple of days ago we had to run another big batch of simulations and while things progressed well at the beginning, we saw the parallel threads apparently hanging one by one until the whole process sat there doing who know what.Our initial suspicion was that we had come across some weird <a href="https://fediscience.org/tags/JuliaLang" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#JuliaLang</a> issue with <a href="https://fediscience.org/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a>, which seemed to be confirmed by some posts we found on the Julia forums. We tried the workarounds suggested there, to no avail. We tried a different number of threads, and this led to the hang occurring after a different percent completion. We tried restarting the simulations skipping the ones already done. It always got stuck at the same place (for the same number of threads).So, what was the problem?1/n

RatatuiWondering how multithreading and responsiveness works in Ratatui? 🐁▶️ Watch the tutorial by GreenTeaCoding here: <a href="https://www.youtube.com/watch?v=awX7DUp-r14" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.youtube.com/watch?v=awX7DUp-r14</a><a href="https://fosstodon.org/tags/rustlang" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#rustlang</a> <a href="https://fosstodon.org/tags/ratatui" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ratatui</a> <a href="https://fosstodon.org/tags/tui" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tui</a> <a href="https://fosstodon.org/tags/tutorial" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#tutorial</a> <a href="https://fosstodon.org/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a> <a href="https://fosstodon.org/tags/responsiveness" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#responsiveness</a>

MClareWhile doing my latest data puzzle project, I hit a performance issue with <a href="https://recurse.social/tags/selenium" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#selenium</a> on my Mac, but *not* my Thinkpad.I wrote up initial findings here: <a href="https://mclare.blog/posts/why-is-multithreading-selenium-lousy-on-macos/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://mclare.blog/posts/why-is-multithreading-selenium-lousy-on-macos/</a>But I won't have time to investigate further until after the holidays and move 🤷‍♀️<a href="https://recurse.social/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a> <a href="https://recurse.social/tags/python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#python</a> <a href="https://recurse.social/tags/concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concurrency</a>

EnigmaRotor<a href="https://mastodon.bsd.cafe/@stefano" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@stefano</a> <a href="https://mastodon.bsd.cafe/@ricardo" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@ricardo</a> <a href="https://mastodon.bsd.cafe/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a>

Royce WilliamsMultithreaded CLI developers: let your users configure the number of threads.Entire classes of use cases are hiding inside that will make your life easier as a dev -- and <code>threads=1</code> is usually not hard to add.One example: if your multithreaded tool works significantly faster on a single file when I force your tool to just use a single thread and parallelize it with <code>parallel --pipepart --block</code> instead, then either:<ol><li>you might decide to develop sharding the I/O of the physical file yourself, or</li><li>you might consciously decide to not develop it, and leave that complexity to <code>parallel</code> (which is fine!)</li></ol>But if your tool has no <code>threads=N</code> option, I have no workaround.Configurable thread count lets me optimize in the meantime (or instead).<a href="https://infosec.exchange/tags/CLI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CLI</a> <a href="https://infosec.exchange/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a>

alexanderadamSerdar just pointed out at the other site that Steven Belanger gave some interesting input on execution contexts for <a href="https://fosstodon.org/@CrystalLanguage" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@CrystalLanguage</a>:<a href="https://github.com/crystal-lang/rfcs/pull/2#issuecomment-2439765625" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://github.com/crystal-lang/rfcs/pull/2#issuecomment-2439765625</a><a href="https://ruby.social/tags/crystallang" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#crystallang</a> <a href="https://ruby.social/tags/crystallanguage" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#crystallanguage</a> <a href="https://ruby.social/tags/crystal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#crystal</a> <a href="https://ruby.social/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a>

Emilia Jarochowska 🇺🇦🌱Have you ever programmed a human computer? Having 30 people walking around the room to exchange information between RAM addresses and CPU registers, and human CPUs execute operations on the clock is a very special experience*.This week I learned more than in a ~year of self-study, thanks to the 16th Advanced Scientific Programming in <a href="https://circumstances.run/tags/Python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Python</a> <a href="https://aspp.school" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://aspp.school</a> We covered version control, packaging, testing, debugging, computer architecture, some <a href="https://circumstances.run/tags/numpy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#numpy</a> and <a href="https://circumstances.run/tags/pandas" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#pandas</a> -fu, programming patterns aka what goes into a class and what doesn't, big-O to understand the scaling of various operations and how to find the fastest one for the given data type and size, and an intro to <a href="https://circumstances.run/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a> and <a href="https://circumstances.run/tags/multiprocessing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multiprocessing</a> 🍭A personal highlight for me was pair programming. I never thought writing code in with a buddy would be so much fun, but I learned a lot from my buddies and now I don't want to go back to writing code alone 😅Very indebted to the teachers and organizers; <a href="https://aspp.school/wiki/faculty" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://aspp.school/wiki/faculty</a> if you ever meet one of those people, please buy them a drink for what they have done for a better code karma state in the universe*our human computer didn't manage to execute the simplest sorting algorithm and the CPUs started to sweat; we experienced what happens when the code is ambiguous and imprecise 😱🫨

0.0🍾🌹: Diego FernandoNo Gods, no Kings, no Global Interpreter Locks.<a href="https://geekpython.in/gil-become-optional-in-python" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://geekpython.in/gil-become-optional-in-python</a><a href="https://social.sdf.org/tags/python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#python</a> <a href="https://social.sdf.org/tags/python3_13" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#python3_13</a> <a href="https://social.sdf.org/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a>

Benjamin Carr, Ph.D. 👨🏻‍💻🧬<a href="https://hachyderm.io/tags/LZ4" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#LZ4</a> v1.10 Introduces <a href="https://hachyderm.io/tags/MultiThreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MultiThreading</a> Support For Major <a href="https://hachyderm.io/tags/Compression" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Compression</a> SpeedupsLZ4 1.10 has been dubbed the "multi-cores edition" with this version adding multi-threading support to help speed-up compression now that modern I/O storage with NVMe is so much faster there's a real need to make compressing data even faster. <a href="https://www.phoronix.com/news/LZ4-1.10-Multi-Threading" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.phoronix.com/news/LZ4-1.10-Multi-Threading</a>

root42Question to my <a href="https://chaos.social/tags/cplusplus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cplusplus</a> bubble: are there any caveats regarding thread_local variables in shared libraries? Do they work in the same way as thread_local variables in statically linked code? <a href="https://chaos.social/tags/cxx" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cxx</a> <a href="https://chaos.social/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a>

C++ on SeaC++OnSea 2024 SESSION ANNOUNCEMENT: Let's Program live: Joy and Pain of Concurrency with C++11 and C++20 by Nico Josuttis<a href="https://cpponsea.uk/2024/sessions/lets-program-live-joy-and-pain-of-concurrency-with-cpp11-and-cpp20" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://cpponsea.uk/2024/sessions/lets-program-live-joy-and-pain-of-concurrency-with-cpp11-and-cpp20</a>Register now at <a href="https://cpponsea.uk/tickets/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://cpponsea.uk/tickets/</a><a href="https://vmst.io/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a> <a href="https://vmst.io/tags/concurrency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concurrency</a> <a href="https://vmst.io/tags/exceptionhandling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#exceptionhandling</a> <a href="https://vmst.io/tags/cpp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cpp</a> <a href="https://vmst.io/tags/cplusplus" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#cplusplus</a>

Pyrzout :vm:Make Your Code Slower With Multithreading <a href="https://hackaday.com/2024/06/07/make-your-code-slower-with-multithreading/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://hackaday.com/2024/06/07/make-your-code-slower-with-multithreading/</a> <a href="https://social.skynetcloud.site/tags/MULTITHREADING" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MULTITHREADING</a> <a href="https://social.skynetcloud.site/tags/SoftwareHacks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SoftwareHacks</a> <a href="https://social.skynetcloud.site/tags/performance" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#performance</a> <a href="https://social.skynetcloud.site/tags/profiling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#profiling</a> <a href="https://social.skynetcloud.site/tags/spinlocks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#spinlocks</a> <a href="https://social.skynetcloud.site/tags/syscall" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#syscall</a> <a href="https://social.skynetcloud.site/tags/futex" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#futex</a> <a href="https://social.skynetcloud.site/tags/mutex" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mutex</a> <a href="https://social.skynetcloud.site/tags/Perf" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Perf</a>+

IT NewsMake Your Code Slower With Multithreading - With the performance of modern CPU cores plateauing recently, the main performance... - <a href="https://hackaday.com/2024/06/07/make-your-code-slower-with-multithreading/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://hackaday.com/2024/06/07/make-your-code-slower-with-multithreading/</a> <a href="https://schleuss.online/tags/multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#multithreading</a> <a href="https://schleuss.online/tags/softwarehacks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#softwarehacks</a> <a href="https://schleuss.online/tags/performance" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#performance</a> <a href="https://schleuss.online/tags/profiling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#profiling</a> <a href="https://schleuss.online/tags/spinlocks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#spinlocks</a> <a href="https://schleuss.online/tags/syscall" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#syscall</a> <a href="https://schleuss.online/tags/futex" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#futex</a> <a href="https://schleuss.online/tags/mutex" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mutex</a> <a href="https://schleuss.online/tags/perf" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#perf</a>

CrystalLanguageWe're happy to announce that Julien Portalier (ysbaddaden) is rejoining the Crystal Core Team. He's working on Crystal at Manas.Tech with a focus on improving multi-threading. <a href="https://crystal-lang.org/2024/02/28/the-return-of-the-golden-man/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://crystal-lang.org/2024/02/28/the-return-of-the-golden-man/</a> <a href="https://fosstodon.org/tags/CrystalLang" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CrystalLang</a> <a href="https://fosstodon.org/tags/Multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Multithreading</a>

CrystalLanguageWe're partnering with @84codes to improve Crystal's concurrency model for multi-threading. This is going to be a lengthy process, but it's already bearing some early fruits. <a href="https://fosstodon.org/tags/CrystalLang" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#CrystalLang</a> <a href="https://fosstodon.org/tags/Multithreading" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Multithreading</a>

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