# Latest

**URL:** https://discourse.julialang.org/latest.md?page=35

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

**Page:** 36

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## [Number of threads assigned via SLURM](https://discourse.julialang.org/t/number-of-threads-assigned-via-slurm/136820)

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**Author:** [@pulk\_jain](https://discourse.julialang.org/u/pulk_jain)\
**Replies:** 5\
**Last updated:** [April 24, 2026, 4:50am UTC](https://discourse.julialang.org/t/number-of-threads-assigned-via-slurm/136820 "2026-04-24T04:50:26Z")

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I am trying to run some multi-threaded code on a cluster using SLURM. #SBATCH --cpus-per-task=4 JPATH=$HOME/.juliaup/bin export JULIA\_DEPOT\_PATH="/my/storage/dir/.julia:" export JULIA\_NUM\_THREADS=auto $JPATH/julia main\_…

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## [Usingpipinside CondaPkg with Pixi backend (undocumented)](https://discourse.julialang.org/t/usingpipinside-condapkg-with-pixi-backend-undocumented/136840)

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**Author:** [@mouad-tarif](https://discourse.julialang.org/u/mouad-tarif)\
**Replies:** 2\
**Last updated:** [April 23, 2026, 10:57pm UTC](https://discourse.julialang.org/t/usingpipinside-condapkg-with-pixi-backend-undocumented/136840 "2026-04-23T22:57:40Z")

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Hello everyone, I want to share a method that seems undocumented but works perfectly. The discovery Inside CondaPkg.jl , when using the Pixi backend, you can directly call pip to install any PyPI package: bash /home/…

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## [\[ANN\] LanceDB.jl — Julia wrapper for LanceDB](https://discourse.julialang.org/t/ann-lancedb-jl-julia-wrapper-for-lancedb/136842)

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**Author:** [@asbisen](https://discourse.julialang.org/u/asbisen)\
**Replies:** 0\
**Last updated:** [April 23, 2026, 6:23pm UTC](https://discourse.julialang.org/t/ann-lancedb-jl-julia-wrapper-for-lancedb/136842 "2026-04-23T18:23:05Z")

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Hi all I would like to share an initial release of LanceDB.jl, a Julia wrapper for LanceDB a high-performance, embedded vector database designed in rust for AI and machine learning workflows. What is LanceDB? LanceDB …

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## ["At present, Julia is a/an \_\_\_\_\_\_\_\_ programming language. " Fill in the blank with the most appropriate adjective](https://discourse.julialang.org/t/at-present-julia-is-a-an-programming-language-fill-in-the-blank-with-the-most-appropriate-adjective/134155)

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**Author:** [@WuSiren](https://discourse.julialang.org/u/WuSiren)\
**Replies:** 50\
**Last updated:** [April 23, 2026, 9:10am UTC](https://discourse.julialang.org/t/at-present-julia-is-a-an-programming-language-fill-in-the-blank-with-the-most-appropriate-adjective/134155 "2026-04-23T09:10:32Z")

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"At present, Julia is a/an \_\_\_\_\_\_\_\_ programming language. " Fill in the blank with the most appropriate adjective. For example, (some possible options) popular? burgeoning? mainstream? non-mainstream? unusual? ord…

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## [How to improve structural\_simplify performance?](https://discourse.julialang.org/t/how-to-improve-structural-simplify-performance/127260)

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**Author:** [@Bart\_van\_de\_Lint](https://discourse.julialang.org/u/Bart_van_de_Lint)\
**Replies:** 17\
**Last updated:** [April 23, 2026, 4:08am UTC](https://discourse.julialang.org/t/how-to-improve-structural-simplify-performance/127260 "2026-04-23T04:08:24Z")

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Modelingtoolkits structural\_simplify can be very slow on bigger systems. What can I do to improve it’s performance? Should I write my equations in a certain way, should I split up big equations into smaller ones, or shou…

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## [Jump, MultiObjectiveAlgorithms - How do manuelly set priorities of objectives](https://discourse.julialang.org/t/jump-multiobjectivealgorithms-how-do-manuelly-set-priorities-of-objectives/136823)

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**Author:** [@Caroline](https://discourse.julialang.org/u/Caroline)\
**Replies:** 2\
**Last updated:** [April 22, 2026, 8:40pm UTC](https://discourse.julialang.org/t/jump-multiobjectivealgorithms-how-do-manuelly-set-priorities-of-objectives/136823 "2026-04-22T20:40:49Z")

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Hi everyone! I’m new to Julia and trying to use it to implement a MILP with multiple objectives. I haven’t been able to find how to set the priorities for the different objectives. Here objective 1 is x+5 and objective 2…

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## [Julia analog to R's poly function, orthogonal polynomials by QR decomposition](https://discourse.julialang.org/t/julia-analog-to-rs-poly-function-orthogonal-polynomials-by-qr-decomposition/128640)

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**Author:** [@Daniel\_Johansson](https://discourse.julialang.org/u/Daniel_Johansson)\
**Replies:** 24\
**Last updated:** [April 22, 2026, 3:57pm UTC](https://discourse.julialang.org/t/julia-analog-to-rs-poly-function-orthogonal-polynomials-by-qr-decomposition/128640 "2026-04-22T15:57:18Z")

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Hey guys! Im trying to replicate some existing R code in julia for a proyect, but such R code depends on the stats base poly function which, given a collection of points, it computes orthogonal polynomials evaluated at …

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## [Julia via juliaup in GUIX](https://discourse.julialang.org/t/julia-via-juliaup-in-guix/130586)

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**Author:** [@dlakelan](https://discourse.julialang.org/u/dlakelan)\
**Replies:** 1\
**Last updated:** [April 22, 2026, 2:03pm UTC](https://discourse.julialang.org/t/julia-via-juliaup-in-guix/130586 "2026-04-22T14:03:54Z")

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Hey all, recently posted about using juliaup in NixOS. Now I’m investigating it in GUIX which is a similar OS but using guile scheme as the configuration language. In GUIX you can run foreign compiled binaries in a cont…

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## [GroupFunctions.jl - Computing individual d-functions of the unitary group U(d)](https://discourse.julialang.org/t/groupfunctions-jl-computing-individual-d-functions-of-the-unitary-group-u-d/136828)

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**Author:** [@damaro](https://discourse.julialang.org/u/damaro)\
**Replies:** 0\
**Last updated:** [April 22, 2026, 1:26pm UTC](https://discourse.julialang.org/t/groupfunctions-jl-computing-individual-d-functions-of-the-unitary-group-u-d/136828 "2026-04-22T13:26:54Z")

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GroupFunctions.jl Hello everyone. I would like to share a project I have been developing for more than five years: GroupFunctions.jl, a registered Julia package for symbolic and numerical computation of individual group…

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## [Set theoretic semantics of the type system](https://discourse.julialang.org/t/set-theoretic-semantics-of-the-type-system/136772)

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**Author:** [@wujinq](https://discourse.julialang.org/u/wujinq)\
**Replies:** 7\
**Last updated:** [April 22, 2026, 8:33am UTC](https://discourse.julialang.org/t/set-theoretic-semantics-of-the-type-system/136772 "2026-04-22T08:33:56Z")

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Not sure if I should post under Offtopic but anyway… In Bezanson’s PhD thesis in 2015, he mentions that Set-theoretic types are a natural basis for such a system. A set-theoretic type is a symbolic expression that den…

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## [\[ANN\] BayeredImages.jl – working with raw color images in Julia](https://discourse.julialang.org/t/ann-bayeredimages-jl-working-with-raw-color-images-in-julia/136660)

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**Author:** [@brainandforce](https://discourse.julialang.org/u/brainandforce)\
**Replies:** 12\
**Last updated:** [April 21, 2026, 10:15pm UTC](https://discourse.julialang.org/t/ann-bayeredimages-jl-working-with-raw-color-images-in-julia/136660 "2026-04-21T22:15:31Z")

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BayeredImages.jl (currently unregistered) This announcement is somewhat premature, but I realized there’s a gap in the Julia image ecosystem that I’m surprised has not been filled already. The problem Color cameras use c…

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## [Letting AI agents use the VSCode Julia REPL](https://discourse.julialang.org/t/letting-ai-agents-use-the-vscode-julia-repl/136805)

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**Author:** [@marius311](https://discourse.julialang.org/u/marius311)\
**Replies:** 7\
**Last updated:** [April 21, 2026, 9:31pm UTC](https://discourse.julialang.org/t/letting-ai-agents-use-the-vscode-julia-repl/136805 "2026-04-21T21:31:54Z")

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Hi all, recently the julia-vscode devs added the ability for VSCode Copilot to run code in the integrated Julia REPL. I made a small addon extension which also lets all the other agentic tools like the native Claude/Code…

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## [Eight fully-funded PhD places in Data-Driven Engineering and Sciences at University of Bristol, UK](https://discourse.julialang.org/t/eight-fully-funded-phd-places-in-data-driven-engineering-and-sciences-at-university-of-bristol-uk/134449)

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**Author:** [@dawbarton](https://discourse.julialang.org/u/dawbarton)\
**Replies:** 13\
**Last updated:** [April 21, 2026, 9:05pm UTC](https://discourse.julialang.org/t/eight-fully-funded-phd-places-in-data-driven-engineering-and-sciences-at-university-of-bristol-uk/134449 "2026-04-21T21:05:11Z")

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Are you interested in bringing the latest data-driven approaches to interdisciplinary topics like Robotics, Neuroscience, Healthcare, and beyond? Welcome to the second cohort of the Doctoral Training Environment (DTE) in…

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## [DiffEqBase.jl moved in March without much notification to the community using it](https://discourse.julialang.org/t/diffeqbase-jl-moved-in-march-without-much-notification-to-the-community-using-it/136781)

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**Author:** [@bparbhu](https://discourse.julialang.org/u/bparbhu)\
**Replies:** 9\
**Last updated:** [April 21, 2026, 6:32pm UTC](https://discourse.julialang.org/t/diffeqbase-jl-moved-in-march-without-much-notification-to-the-community-using-it/136781 "2026-04-21T18:32:36Z")

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Hi all, I haven’t seen a post about how sunsetting works in SciML. Does anyone know if there’s been any communication about sunsetting DiffEqBase.jl GitHub - SciML/DiffEqBase.jl: The lightweight Base library for shared…

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## [Modeling scale-up and economic factors in DYAD (bioprocess / fermentation)](https://discourse.julialang.org/t/modeling-scale-up-and-economic-factors-in-dyad-bioprocess-fermentation/136777)

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**Author:** [@mpampuch](https://discourse.julialang.org/u/mpampuch)\
**Replies:** 1\
**Last updated:** [April 21, 2026, 6:27pm UTC](https://discourse.julialang.org/t/modeling-scale-up-and-economic-factors-in-dyad-bioprocess-fermentation/136777 "2026-04-21T18:27:29Z")

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Hi all, I’m new to DYAD, so apologies if this is a basic question. I’m exploring whether DYAD is a good fit for modeling for my purposes, particularly modelling and analyzing the feasibility of fermentation systems. My…

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## [\[ANN\] MichiBoost.jl — Native gradient boosting in Julia](https://discourse.julialang.org/t/ann-michiboost-jl-native-gradient-boosting-in-julia/136811)

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**Author:** [@pebeto](https://discourse.julialang.org/u/pebeto)\
**Replies:** 1\
**Last updated:** [April 21, 2026, 10:51am UTC](https://discourse.julialang.org/t/ann-michiboost-jl-native-gradient-boosting-in-julia/136811 "2026-04-21T10:51:21Z")

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Hi everyone, I’d like to share a project I’ve been working on: MichiBoost.jl, a gradient boosting library written 100% in Julia. The story starts with another project I maintain for JuliaAI, MLFlowClient.jl, where I ha…

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## [Argmax mapreduce on GPU](https://discourse.julialang.org/t/argmax-mapreduce-on-gpu/134971)

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**Author:** [@noetheriankoala](https://discourse.julialang.org/u/noetheriankoala)\
**Replies:** 6\
**Last updated:** [April 21, 2026, 9:35am UTC](https://discourse.julialang.org/t/argmax-mapreduce-on-gpu/134971 "2026-04-21T09:35:03Z")

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Hello! I am trying to quickly compute \\text{argmax}\_{\\substack{1 \\leq s \\leq k\\\\ k+1 \\leq t \\leq n}} A\_{s,t} + (1-\\ell\_s)(1 + \\ell\_t) I do this on the CPU with the following code. f = ((i, j),) -\> (i, j, A\[i, j\]^2 + …

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## [Question about \`exp\` with imaginary argument](https://discourse.julialang.org/t/question-about-exp-with-imaginary-argument/136773)

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**Author:** [@aitzkora](https://discourse.julialang.org/u/aitzkora)\
**Replies:** 8\
**Last updated:** [April 21, 2026, 7:36am UTC](https://discourse.julialang.org/t/question-about-exp-with-imaginary-argument/136773 "2026-04-21T07:36:08Z")

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I do not understand the result in the second case julia\> exp(2π/3 \* 1im) -0.4999999999999998 + 0.8660254037844387im julia\> exp(2π/3im) -0.4999999999999998 - 0.8660254037844387im julia\> cis(2π/3) -0.4999999999999998 + 0.…

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## [\[ANN\] PhiloxRNG.jl: Generate random numbers on CPU and GPU using the Philox4x32 counter-based RNG](https://discourse.julialang.org/t/ann-philoxrng-jl-generate-random-numbers-on-cpu-and-gpu-using-the-philox4x32-counter-based-rng/136224)

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**Author:** [@nhz2](https://discourse.julialang.org/u/nhz2)\
**Replies:** 6\
**Last updated:** [April 21, 2026, 5:53am UTC](https://discourse.julialang.org/t/ann-philoxrng-jl-generate-random-numbers-on-cpu-and-gpu-using-the-philox4x32-counter-based-rng/136224 "2026-04-21T05:53:02Z")

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PhiloxRNG.jl is a package for generating random numbers on both the CPU and GPU. It will generate similar numbers on all devices (results are not exactly the same when sampling floating point distributions due to fast …

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## [Fast fixed point log](https://discourse.julialang.org/t/fast-fixed-point-log/136210)

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**Author:** [@nhz2](https://discourse.julialang.org/u/nhz2)\
**Replies:** 5\
**Last updated:** [April 21, 2026, 4:55am UTC](https://discourse.julialang.org/t/fast-fixed-point-log/136210 "2026-04-21T04:55:49Z")

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I’m trying to compute Float32 log(x) where x = (u + 0.5) / 2³² and u is a integer from 0 to 2³² - 1 I started with: @inline function fastlog1(u::UInt32)::Float32 if u \< UInt32(2)^31 x = fma(Float32(u), Floa…

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## [Unexpected Boolean flag behavior in Julia 1.12 vs 1.10](https://discourse.julialang.org/t/unexpected-boolean-flag-behavior-in-julia-1-12-vs-1-10/135539)

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**Author:** [@Mirsad\_Cosovic](https://discourse.julialang.org/u/Mirsad_Cosovic)\
**Replies:** 7\
**Last updated:** [April 20, 2026, 3:58pm UTC](https://discourse.julialang.org/t/unexpected-boolean-flag-behavior-in-julia-1-12-vs-1-10/135539 "2026-04-20T15:58:35Z")

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I have encountered a strange issue while migrating code from Julia 1.10 to Julia 1.12.3. It seems like a variable assignment within a function is not being reflected correctly in the caller’s scope, or I am fundamentally…

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## [BatchSolve.jl: Vectorized, batched, AD-compatible root finders and minimizers. Also vectorized finite differences](https://discourse.julialang.org/t/batchsolve-jl-vectorized-batched-ad-compatible-root-finders-and-minimizers-also-vectorized-finite-differences/136797)

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**Author:** [@mattsignorelli](https://discourse.julialang.org/u/mattsignorelli)\
**Replies:** 1\
**Last updated:** [April 20, 2026, 3:46pm UTC](https://discourse.julialang.org/t/batchsolve-jl-vectorized-batched-ad-compatible-root-finders-and-minimizers-also-vectorized-finite-differences/136797 "2026-04-20T15:46:43Z")

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BatchSolve.jl aims to provide various functionalities for solving batch-able, vectorized residual functions (for root finding) and objective functions (for minimizing). As long as your function is vectorized, then Batch…

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## [Poor Impression on Agentic Development in Julia with Codex. Skill issue?](https://discourse.julialang.org/t/poor-impression-on-agentic-development-in-julia-with-codex-skill-issue/136524)

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**Author:** [@RayleighLord](https://discourse.julialang.org/u/RayleighLord)\
**Replies:** 18\
**Last updated:** [April 20, 2026, 3:13pm UTC](https://discourse.julialang.org/t/poor-impression-on-agentic-development-in-julia-with-codex-skill-issue/136524 "2026-04-20T15:13:41Z")

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I want to share my recent experience using advanced AI models for software development, and I would be very interested to hear from others in the Julia community to see whether I can improve my workflow. My experience s…

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## [Creating a macro to call @tullio with arbitrary dimensions](https://discourse.julialang.org/t/creating-a-macro-to-call-tullio-with-arbitrary-dimensions/135848)

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**Author:** [@nicrummel](https://discourse.julialang.org/u/nicrummel)\
**Replies:** 2\
**Last updated:** [April 20, 2026, 11:21am UTC](https://discourse.julialang.org/t/creating-a-macro-to-call-tullio-with-arbitrary-dimensions/135848 "2026-04-20T11:21:27Z")

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Hello everyone, Custom Macro I am hoping to be able to write a macro that can call @tullio to specify an arbitrary sized linear form. I think this should follow from some easy-ish fix similar to an old thread… but I am …

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## [Software developer and train nerd at chuuchuu](https://discourse.julialang.org/t/software-developer-and-train-nerd-at-chuuchuu/136499)

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**Author:** [@evert](https://discourse.julialang.org/u/evert)\
**Replies:** 2\
**Last updated:** [April 20, 2026, 10:51am UTC](https://discourse.julialang.org/t/software-developer-and-train-nerd-at-chuuchuu/136499 "2026-04-20T10:51:40Z")

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In short What: Software developer and train nerd. Company: chuuchuu, small startup, this would be our first hire. Where: Fully remote within Europe. When: Hopefully starting June, maybe later. See below. The job We are…

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## [Circuit measured using a sampling filter](https://discourse.julialang.org/t/circuit-measured-using-a-sampling-filter/136687)

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**Author:** [@josujugo](https://discourse.julialang.org/u/josujugo)\
**Replies:** 10\
**Last updated:** [April 20, 2026, 10:14am UTC](https://discourse.julialang.org/t/circuit-measured-using-a-sampling-filter/136687 "2026-04-20T10:14:42Z")

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Hi, I am trying to implement a digital filter for measuring (samplling and filtering) the voltage of a circuit. The RLC circuit is defined by an ODE. I’ve come up with a simulation using a callback for sampling, but th…

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## [Ecosystem Bundle Download](https://discourse.julialang.org/t/ecosystem-bundle-download/136783)

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**Author:** [@leofossilis](https://discourse.julialang.org/u/leofossilis)\
**Replies:** 1\
**Last updated:** [April 20, 2026, 3:27am UTC](https://discourse.julialang.org/t/ecosystem-bundle-download/136783 "2026-04-20T03:27:46Z")

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Hey new to julia, proficient in python and R; Want to know if there is a method to download entire ecosystems like JuliaStats or JuliaGraph using single command?

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## [\[ANN\] UniformStreamlines.jl: evenly spaced streamlines in Julia](https://discourse.julialang.org/t/ann-uniformstreamlines-jl-evenly-spaced-streamlines-in-julia/136784)

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**Author:** [@tonygem96](https://discourse.julialang.org/u/tonygem96)\
**Replies:** 0\
**Last updated:** [April 20, 2026, 3:26am UTC](https://discourse.julialang.org/t/ann-uniformstreamlines-jl-evenly-spaced-streamlines-in-julia/136784 "2026-04-20T03:26:36Z")

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Announcing UniformStreamlines.jl, a lightweight Julia package for generating and plotting evenly spaced streamlines in 2D, 3D, and N-D vector fields using the Jobard–Lefer algorithm. It works with both function-defined …

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## [\[ANN\] GeoNamesAPI.jl](https://discourse.julialang.org/t/ann-geonamesapi-jl/136559)

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**Author:** [@tp2750](https://discourse.julialang.org/u/tp2750)\
**Replies:** 1\
**Last updated:** [April 19, 2026, 6:41pm UTC](https://discourse.julialang.org/t/ann-geonamesapi-jl/136559 "2026-04-19T18:41:07Z")

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I needed to access the GeoNames web service for a side project, and Julia is not mentioned on the list of client Libraries. So I created one: GitHub - tp2750/GeoNamesAPI.jl: A simple interface to the https://www.geonames…

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## [Passing whole sequence to next layer from RNNCell in Lux](https://discourse.julialang.org/t/passing-whole-sequence-to-next-layer-from-rnncell-in-lux/136779)

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**Author:** [@alequa](https://discourse.julialang.org/u/alequa)\
**Replies:** 0\
**Last updated:** [April 19, 2026, 4:42pm UTC](https://discourse.julialang.org/t/passing-whole-sequence-to-next-layer-from-rnncell-in-lux/136779 "2026-04-19T16:42:39Z")

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Hello, I am trying to reproduce some basic code for training recurrent spiking networks. Here you can find an old porting for Flux from spytorch. I already adapted to the current Flux version, but I would really like t…

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