# Latest

**URL:** https://discourse.julialang.org/latest.md?page=82

[Latest](https://discourse.julialang.org/latest.md) · [Categories](https://discourse.julialang.org/categories.md) · [Tags](https://discourse.julialang.org/tags.md)

**Page:** 83

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## [Sticky Task Virality](https://discourse.julialang.org/t/sticky-task-virality/134009)

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**Author:** [@csvance](https://discourse.julialang.org/u/csvance)\
**Replies:** 0\
**Last updated:** [November 20, 2025, 2:36pm UTC](https://discourse.julialang.org/t/sticky-task-virality/134009 "2025-11-20T14:36:14Z")

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I just watched the JuliaCon scheduler talk https://youtu.be/FC4HyJXyvP0?si=LcMYJLlIKAqnvqQG&t=341 and it was mentioned that the sticky bit can spread to other tasks when using locks. With Julia 1.12 I tried to have a no…

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## [Symbolic Fourier Transforms for Educational DSP](https://discourse.julialang.org/t/symbolic-fourier-transforms-for-educational-dsp/134001)

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**Author:** [@franalbani](https://discourse.julialang.org/u/franalbani)\
**Replies:** 1\
**Last updated:** [November 20, 2025, 1:58pm UTC](https://discourse.julialang.org/t/symbolic-fourier-transforms-for-educational-dsp/134001 "2025-11-20T13:58:38Z")

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Hi! I’m new to Julia and wondering if its the right tool for a educational project. I would like to make a program that lets the user (a teacher or student) to select and customize some elemental signals that will then…

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## [\[ANN\] MAT.jl v0.11 -- classes and struct arrays](https://discourse.julialang.org/t/ann-mat-jl-v0-11-classes-and-struct-arrays/134007)

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**Author:** [@MatthijsCox](https://discourse.julialang.org/u/MatthijsCox)\
**Replies:** 0\
**Last updated:** [November 20, 2025, 12:46pm UTC](https://discourse.julialang.org/t/ann-mat-jl-v0-11-classes-and-struct-arrays/134007 "2025-11-20T12:46:28Z")

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MAT.jl v0.11 release After almost 1.5 years since the release of v0.10.7, we have managed to make some big improvements to MAT.jl in v0.11.0. :birthday\_cake: Please try it out and report back to us if you find any issu…

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## [Issue with FMU Export after Manipulating Model in Julia](https://discourse.julialang.org/t/issue-with-fmu-export-after-manipulating-model-in-julia/121084)

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**Author:** [@CurioMath](https://discourse.julialang.org/u/CurioMath)\
**Replies:** 8\
**Last updated:** [November 20, 2025, 8:50am UTC](https://discourse.julialang.org/t/issue-with-fmu-export-after-manipulating-model-in-julia/121084 "2025-11-20T08:50:34Z")

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Hi everyone, I am trying to export an FMU in Julia after importing and manipulating an FMU model. Specifically, I followed the example for manipulation from the documentation of FMIExport.jl, which can be found here: M…

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## [PSA: Use Dependabot to update GitHub actions automatically](https://discourse.julialang.org/t/psa-use-dependabot-to-update-github-actions-automatically/96001)

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**Author:** [@ranocha](https://discourse.julialang.org/u/ranocha)\
**Replies:** 3\
**Last updated:** [November 20, 2025, 8:18am UTC](https://discourse.julialang.org/t/psa-use-dependabot-to-update-github-actions-automatically/96001 "2025-11-20T08:18:24Z")

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GitHub offers Dependabot to update GitHub actions automatically. I found this quite useful for my own packages. The SciML organization and the Trixi.jl framework have already enabled it in many repositories, the remainin…

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## [Julia's Interaction with Foreign Threads](https://discourse.julialang.org/t/julias-interaction-with-foreign-threads/133888)

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**Author:** [@Chrysoberyl](https://discourse.julialang.org/u/Chrysoberyl)\
**Replies:** 1\
**Last updated:** [November 20, 2025, 4:04am UTC](https://discourse.julialang.org/t/julias-interaction-with-foreign-threads/133888 "2025-11-20T04:04:28Z")

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In my use case, I’m creating a Julia library for Julia code to interact with Rust code. It has 3 types of threads: Threads created by Julia, which can handle foreign objects via ForeignType Threads created by Rust, whi…

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## [Vscode unicode auto completion does not work in julia 1.10.4](https://discourse.julialang.org/t/vscode-unicode-auto-completion-does-not-work-in-julia-1-10-4/118242)

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**Author:** [@imantha](https://discourse.julialang.org/u/imantha)\
**Replies:** 6\
**Last updated:** [November 20, 2025, 3:18am UTC](https://discourse.julialang.org/t/vscode-unicode-auto-completion-does-not-work-in-julia-1-10-4/118242 "2025-11-20T03:18:52Z")

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Vs code doesn’t register the unicode auto completion anymore. For example when I type, \\sigma , the unicode character doesn’t appear anymore. My current Julia is 1.10.4 but I think it happened earlier than this release. …

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## [\`MethodError\` when trying to \`filter\` a \`GroupedDataframe\`](https://discourse.julialang.org/t/methoderror-when-trying-to-filter-a-groupeddataframe/133996)

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**Author:** [@Quantodeluz](https://discourse.julialang.org/u/Quantodeluz)\
**Replies:** 5\
**Last updated:** [November 20, 2025, 2:52am UTC](https://discourse.julialang.org/t/methoderror-when-trying-to-filter-a-groupeddataframe/133996 "2025-11-20T02:52:24Z")

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I’m trying to filter the SubDataFrames with less than a given length (nrow) out of a GroupedDataFrame, but filter() doesn’t seem to recognize the anonymus function i’m passing to it and throws a MethodError: ERROR: Load…

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## [VSCode CairoMakie Zoom](https://discourse.julialang.org/t/vscode-cairomakie-zoom/133978)

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**Author:** [@csvance](https://discourse.julialang.org/u/csvance)\
**Replies:** 8\
**Last updated:** [November 19, 2025, 11:44pm UTC](https://discourse.julialang.org/t/vscode-cairomakie-zoom/133978 "2025-11-19T23:44:28Z")

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Is there any way to zoom in VSCode for plots created by CairoMakie? I often visualize high resolution images with many annotations and I can’t seem to find any way to zoom in so I can see the details. Bypassing VSCode a…

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## [Need memory and/or parallel optimization for pairwise distance metrics](https://discourse.julialang.org/t/need-memory-and-or-parallel-optimization-for-pairwise-distance-metrics/133943)

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**Author:** [@kevbonham](https://discourse.julialang.org/u/kevbonham)\
**Replies:** 25\
**Last updated:** [November 19, 2025, 8:17pm UTC](https://discourse.julialang.org/t/need-memory-and-or-parallel-optimization-for-pairwise-distance-metrics/133943 "2025-11-19T20:17:51Z")

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I have a ~1000x800,000 sparse matrix, and I would like to calculate pairwise distance metrics for the columns. The vast majority of these will have distance 1, so I thought that I might store them as similarity (1 - dist…

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## [InvalidIRError when running AcceleratedKernels.sum on a GPU SubArray (CuArray view)](https://discourse.julialang.org/t/invalidirerror-when-running-acceleratedkernels-sum-on-a-gpu-subarray-cuarray-view/133994)

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**Author:** [@0samuraiE](https://discourse.julialang.org/u/0samuraiE)\
**Replies:** 2\
**Last updated:** [November 20, 2025, 9:20am UTC](https://discourse.julialang.org/t/invalidirerror-when-running-acceleratedkernels-sum-on-a-gpu-subarray-cuarray-view/133994 "2025-11-20T09:20:41Z")

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I’m running into an issue when trying to use AcceleratedKernels.sum on a GPU SubArray (a view into a CuArray). Calling AK.sum on the full array works fine, but calling it on the view throws an InvalidIRError. Question …

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## [Simplification in Symbolics v7](https://discourse.julialang.org/t/simplification-in-symbolics-v7/133974)

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**Author:** [@bernardofpc](https://discourse.julialang.org/u/bernardofpc)\
**Replies:** 1\
**Last updated:** [November 19, 2025, 3:55pm UTC](https://discourse.julialang.org/t/simplification-in-symbolics-v7/133974 "2025-11-19T15:55:58Z")

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I have read Basic expression manipulation with Symbolics.jl - #2 by Gravlax but found no issue, so I’m asking again with some very simple examples to understand if there is a reason for the three results below: julia\> s…

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## [Makie - plotting Nanoseconds with custom tick labels](https://discourse.julialang.org/t/makie-plotting-nanoseconds-with-custom-tick-labels/133987)

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**Author:** [@Sukera](https://discourse.julialang.org/u/Sukera)\
**Replies:** 5\
**Last updated:** [November 19, 2025, 3:31pm UTC](https://discourse.julialang.org/t/makie-plotting-nanoseconds-with-custom-tick-labels/133987 "2025-11-19T15:31:11Z")

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I’m trying to scatter an array of Nanosecond values, all on the order of 100ms±50us. When I plot these, I get y tick labels like 10.005cs. Is there some way to get tick labels like 100.05ms instead? I tried to use ytickf…

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## [Weird bug that shouldn't happen; Cannot declare anonymous.#XX#XX constant; it already has a value](https://discourse.julialang.org/t/weird-bug-that-shouldnt-happen-cannot-declare-anonymous-xx-xx-constant-it-already-has-a-value/133989)

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**Author:** [@Qfl3x](https://discourse.julialang.org/u/Qfl3x)\
**Replies:** 2\
**Last updated:** [November 19, 2025, 2:58pm UTC](https://discourse.julialang.org/t/weird-bug-that-shouldnt-happen-cannot-declare-anonymous-xx-xx-constant-it-already-has-a-value/133989 "2025-11-19T14:58:28Z")

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I was just playing around in Infiltrator and stumbled on this: Shouldn’t this be impossible? I have 2 other anonymous functions used in the script. Probably dozens if not hundreds in the packages I’m using. Couldn’…

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## [Reliability of AI coding tools](https://discourse.julialang.org/t/reliability-of-ai-coding-tools/133975)

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**Author:** [@Mikhail\_Kagalenko](https://discourse.julialang.org/u/Mikhail_Kagalenko)\
**Replies:** 30\
**Last updated:** [November 19, 2025, 1:16pm UTC](https://discourse.julialang.org/t/reliability-of-ai-coding-tools/133975 "2025-11-19T13:16:32Z")

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It is unfortunate that this package has been developed by an “AI” tool. The code produced in this fashion is inherently unreliable.

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## [Looking for Windows ARM tester](https://discourse.julialang.org/t/looking-for-windows-arm-tester/133912)

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**Author:** [@GeorgeGkountouras](https://discourse.julialang.org/u/GeorgeGkountouras)\
**Replies:** 6\
**Last updated:** [November 19, 2025, 2:19pm UTC](https://discourse.julialang.org/t/looking-for-windows-arm-tester/133912 "2025-11-19T14:19:59Z")

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After a successful OpenCL test on my AMD iGPU, I want to see if the same method can be used to target Snapdragon Adreno GPUs. Unfortunately, I don’t have access to one of these devices. Can someone on Windows ARM help m…

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## [REPL.LineEditREPL isn't a LineEditREPL](https://discourse.julialang.org/t/repl-lineeditrepl-isnt-a-lineeditrepl/133977)

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**Author:** [@BC\_Arrr](https://discourse.julialang.org/u/BC_Arrr)\
**Replies:** 2\
**Last updated:** [November 19, 2025, 2:10pm UTC](https://discourse.julialang.org/t/repl-lineeditrepl-isnt-a-lineeditrepl/133977 "2025-11-19T14:10:06Z")

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I can’t for the life of me figure out where things have gone wrong. I assume that multiple references to REPL exist and lead to the following errors: $ julia \_ \_ \_ \_(\_)\_ | Documentation: htt…

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## [Questions about running a workshop](https://discourse.julialang.org/t/questions-about-running-a-workshop/133910)

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**Author:** [@amca01](https://discourse.julialang.org/u/amca01)\
**Replies:** 3\
**Last updated:** [November 19, 2025, 12:52pm UTC](https://discourse.julialang.org/t/questions-about-running-a-workshop/133910 "2025-11-19T12:52:07Z")

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Hello, I am a co-chair of an international conference in mathematics & technology to be held in December. In an unguided moment, I breezily offered to run a one hour workshop on Julia, especially emphasizing its speed …

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## [Fully-remote health informatics developer analyst ($84k-$107k)](https://discourse.julialang.org/t/fully-remote-health-informatics-developer-analyst-84k-107k/133988)

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**Author:** [@Ashlin\_Harris](https://discourse.julialang.org/u/Ashlin_Harris)\
**Replies:** 0\
**Last updated:** [November 19, 2025, 12:21pm UTC](https://discourse.julialang.org/t/fully-remote-health-informatics-developer-analyst-84k-107k/133988 "2025-11-19T12:21:53Z")

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The Tufts Clinical and Translational Science Institute is hiring a developer analyst for their Health Informatics team. Our role at TuftsMedicine is essentially to deliver focused datasets to clinicians based on their re…

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## [Remove memory from Julia's management](https://discourse.julialang.org/t/remove-memory-from-julias-management/133983)

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**Author:** [@Chrysoberyl](https://discourse.julialang.org/u/Chrysoberyl)\
**Replies:** 2\
**Last updated:** [November 19, 2025, 12:19pm UTC](https://discourse.julialang.org/t/remove-memory-from-julias-management/133983 "2025-11-19T12:19:01Z")

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When calling into Julia and using it as a library, is it possible to remove an allocated datum from Julia’s management? My use case is this: I have a Julia function, passed across FFI as a callback, which creates data b…

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## [CasADiNLPModels.jl: an interface for CasADi via loading code generated functions](https://discourse.julialang.org/t/casadinlpmodels-jl-an-interface-for-casadi-via-loading-code-generated-functions/133925)

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**Author:** [@apozharski](https://discourse.julialang.org/u/apozharski)\
**Replies:** 1\
**Last updated:** [November 19, 2025, 11:35am UTC](https://discourse.julialang.org/t/casadinlpmodels-jl-an-interface-for-casadi-via-loading-code-generated-functions/133925 "2025-11-19T11:35:02Z")

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We (@frapac, @apozharski, and Armin Nurkanović) have released a small new package for easily interfacing NLPs modeled in CasADi with the NLPModels.jl ecosystem. The package implements loading of CasÄDi code generated fun…

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## [\[ANN\] Niivue.jl: Interactive 3D/4D Neuroimaging Visualization](https://discourse.julialang.org/t/ann-niivue-jl-interactive-3d-4d-neuroimaging-visualization/133982)

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**Author:** [@korbinian](https://discourse.julialang.org/u/korbinian)\
**Replies:** 0\
**Last updated:** [November 19, 2025, 8:29am UTC](https://discourse.julialang.org/t/ann-niivue-jl-interactive-3d-4d-neuroimaging-visualization/133982 "2025-11-19T08:29:33Z")

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Hello Julia Community, I created a new package, Niivue.jl, which is a Julia wrapper to Niivue.js, a WebGL-based neuroimaging viewer. It uses Bonito.jl for communication with JavaScript. Because of this, the viewer rend…

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## [Taylor series from symbolics uses wrong rational approximations](https://discourse.julialang.org/t/taylor-series-from-symbolics-uses-wrong-rational-approximations/133971)

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**Author:** [@bernardofpc](https://discourse.julialang.org/u/bernardofpc)\
**Replies:** 6\
**Last updated:** [November 19, 2025, 8:11am UTC](https://discourse.julialang.org/t/taylor-series-from-symbolics-uses-wrong-rational-approximations/133971 "2025-11-19T08:11:14Z")

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I am calculating a Taylor series and I get strange rational numbers where they should not appear. A minimal example is the following: pkg\> st Status \[REDACTED\] \[163ba53b\] DiffResults v1.1.0 \[f6369f11\] ForwardDiff v…

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## [GEMM kernel, cache oblivious, and Strassen](https://discourse.julialang.org/t/gemm-kernel-cache-oblivious-and-strassen/126527)

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**Author:** [@photor](https://discourse.julialang.org/u/photor)\
**Replies:** 5\
**Last updated:** [November 19, 2025, 5:18am UTC](https://discourse.julialang.org/t/gemm-kernel-cache-oblivious-and-strassen/126527 "2025-11-19T05:18:07Z")

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I think many people are curious about how a GEMM kernel written in pure Julia can be much more performant than a naively written one. One can inspect the source code of LoopVectorization.jl, of course, or even the more p…

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## [StackOverflowError after only 14 calls to the same function?](https://discourse.julialang.org/t/stackoverflowerror-after-only-14-calls-to-the-same-function/133693)

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**Author:** [@johnomotani](https://discourse.julialang.org/u/johnomotani)\
**Replies:** 4\
**Last updated:** [November 18, 2025, 8:29pm UTC](https://discourse.julialang.org/t/stackoverflowerror-after-only-14-calls-to-the-same-function/133693 "2025-11-18T20:29:35Z")

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How many times does a function have to be called before a StackOverflowError is triggered? When I try with a simple recursive function call, it seems to be about 80,000. However, in my program, I have a function that is …

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## [Read stdout/stderr from subprocess asynchronously](https://discourse.julialang.org/t/read-stdout-stderr-from-subprocess-asynchronously/133893)

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**Author:** [@Ken\_Williams](https://discourse.julialang.org/u/Ken_Williams)\
**Replies:** 1\
**Last updated:** [November 18, 2025, 7:55pm UTC](https://discourse.julialang.org/t/read-stdout-stderr-from-subprocess-asynchronously/133893 "2025-11-18T19:55:28Z")

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I want to call a process that might write to its stdout or stderr however it chooses. The process could take a while, and it might die (exit with nonzero status). Conceptually, I want something like this: cmd = \`sh -c…

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## [Help defining a custom IBMFloat32 primitive type](https://discourse.julialang.org/t/help-defining-a-custom-ibmfloat32-primitive-type/133904)

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**Author:** [@juliohm](https://discourse.julialang.org/u/juliohm)\
**Replies:** 34\
**Last updated:** [November 18, 2025, 6:14pm UTC](https://discourse.julialang.org/t/help-defining-a-custom-ibmfloat32-primitive-type/133904 "2025-11-18T18:14:45Z")

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I need to consume binary data from an old file format that uses 4-byte IBM floating point as opposed to IEEE floating point (i.e., Float32). The 4-byte IBM floating point type is also known as IBM HFP (hexadecimal floati…

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## [Shorthand for ((i-1)\*k+1):(i\*k)](https://discourse.julialang.org/t/shorthand-for-i-1-k-1-i-k/133968)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 5\
**Last updated:** [November 18, 2025, 2:49pm UTC](https://discourse.julialang.org/t/shorthand-for-i-1-k-1-i-k/133968 "2025-11-18T14:49:35Z")

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I often run into the problem of partitioning data to into equal “chunks”, eg a vector of N\*K elements into N chunks of K, then doing something to each chunk. As an MWE, consider z = zeros(N\*K) for i in 1:N z\[((i-1)\*…

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## [Plots stopped working (more or less out of nowhere)](https://discourse.julialang.org/t/plots-stopped-working-more-or-less-out-of-nowhere/133929)

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**Author:** [@Torkel](https://discourse.julialang.org/u/Torkel)\
**Replies:** 18\
**Last updated:** [November 18, 2025, 2:02pm UTC](https://discourse.julialang.org/t/plots-stopped-working-more-or-less-out-of-nowhere/133929 "2025-11-18T14:02:24Z")

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I have an environment which was fine, but after not touching it for a week, suddenly it does no longer work. I haven’t done anything to package versions, so there must be something weirder going on. I have been back and …

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## [Line search in LBFGSB package](https://discourse.julialang.org/t/line-search-in-lbfgsb-package/133949)

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**Author:** [@Xu\_Shan](https://discourse.julialang.org/u/Xu_Shan)\
**Replies:** 3\
**Last updated:** [November 18, 2025, 11:00am UTC](https://discourse.julialang.org/t/line-search-in-lbfgsb-package/133949 "2025-11-18T11:00:09Z")

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Hi guys, I am using LBFGSB package to optimize my problem (see below the message). However, I don’t understand the ABNORMAL\_TERMINATION\_IN\_LINSEARCH flag it threw to me at the final point…why is that? julia\> x0 = Cdoub…

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