# Specific Domains

**URL:** https://discourse.julialang.org/c/domain/10.md?no_subcategories=false&page=363

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**Page:** 364

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## [Makie - High GPU usage for plots with a lot of points](https://discourse.julialang.org/t/makie-high-gpu-usage-for-plots-with-a-lot-of-points/55199)

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**Author:** [@tt1234567](https://discourse.julialang.org/u/tt1234567)\
**Replies:** 15\
**Last updated:** [May 23, 2021, 6:59pm UTC](https://discourse.julialang.org/t/makie-high-gpu-usage-for-plots-with-a-lot-of-points/55199 "2021-05-23T18:59:29Z")

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My laptop struggles a bit when I plot large numbers of points with Makie. It’s not just while it’s plotting but it carries on using the GPU after the plot’s completed. I’m using Windows 10 on a laptop with a core i7 proc…

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## [How to layout figures in CairoMakie after they are generated](https://discourse.julialang.org/t/how-to-layout-figures-in-cairomakie-after-they-are-generated/61683)

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**Author:** [@vjd](https://discourse.julialang.org/u/vjd)\
**Replies:** 2\
**Last updated:** [May 23, 2021, 4:20pm UTC](https://discourse.julialang.org/t/how-to-layout-figures-in-cairomakie-after-they-are-generated/61683 "2021-05-23T16:20:53Z")

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Note: Question on slack that I reposting here for wider audience. Is there a way to layout figures in CairoMakie after they are generated? e.g. I have julia\> typeof(a1) Figure julia\> typeof(a2) Figure I want to snap …

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## [How to solve Ax=b, with A,x,b are matrix](https://discourse.julialang.org/t/how-to-solve-ax-b-with-a-x-b-are-matrix/61663)

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**Author:** [@Van\_Kh\_i\_Ph\_m](https://discourse.julialang.org/u/Van_Kh_i_Ph_m)\
**Replies:** 12\
**Last updated:** [May 23, 2021, 4:16pm UTC](https://discourse.julialang.org/t/how-to-solve-ax-b-with-a-x-b-are-matrix/61663 "2021-05-23T16:16:10Z")

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How to solve Ax=b, with A,x,b are matrix And, Can anyone help me solve this function with Newton method with backtracking line search ?

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## [JuliaCon2020 Dynamical Modelling BoF summary](https://discourse.julialang.org/t/juliacon2020-dynamical-modelling-bof-summary/44099)

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**Author:** [@Datseris](https://discourse.julialang.org/u/Datseris)\
**Replies:** 5\
**Last updated:** [January 26, 2021, 9:14am UTC](https://discourse.julialang.org/t/juliacon2020-dynamical-modelling-bof-summary/44099 "2021-01-26T09:14:34Z")

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Hi everyone, below you will find the summary of the BoF session of JuliaCon2020. I’ve tried to make everything sensible, feel free to correct me in the comments! Our working definition of “dynamical modelling” is: Mod…

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## [Is AMD CPU more sensitive to false-sharing than Intel and Power?](https://discourse.julialang.org/t/is-amd-cpu-more-sensitive-to-false-sharing-than-intel-and-power/61679)

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**Author:** [@tkf](https://discourse.julialang.org/u/tkf)\
**Replies:** 1\
**Last updated:** [May 23, 2021, 3:52pm UTC](https://discourse.julialang.org/t/is-amd-cpu-more-sensitive-to-false-sharing-than-intel-and-power/61679 "2021-05-23T15:52:50Z")

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I tried to come up with a robust and minimal false sharing example (so that I can play with perf c2c). But it turned out the following example (from the previous discussion in Zulip) only shows the effect of false sharin…

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## [DiffEqFlux: SOSRA2() algorithm + BacksolveAdjoint() gives an error](https://discourse.julialang.org/t/diffeqflux-sosra2-algorithm-backsolveadjoint-gives-an-error/61237)

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**Author:** [@SvenDummer](https://discourse.julialang.org/u/SvenDummer)\
**Replies:** 2\
**Last updated:** [May 23, 2021, 8:36am UTC](https://discourse.julialang.org/t/diffeqflux-sosra2-algorithm-backsolveadjoint-gives-an-error/61237 "2021-05-23T08:36:00Z")

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Hi everyone. I have a question related to fitting a Neural SDE using DiffEqFlux.jl. Description of the problem that is solved: Given a specific SDE system, I want to steer that system (with a particular control) to the…

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## [SDDP:MethodError: no method matching \*(::Float64, ::SDDP.State{VariableRef})](https://discourse.julialang.org/t/sddp-no-method-matching-float64-sddp-state-variableref/61666)

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**Author:** [@BYS](https://discourse.julialang.org/u/BYS)\
**Replies:** 4\
**Last updated:** [May 23, 2021, 4:13am UTC](https://discourse.julialang.org/t/sddp-no-method-matching-float64-sddp-state-variableref/61666 "2021-05-23T04:13:36Z")

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Hi, If I write using SDDP,Gurobi a=2\*ones(10) a\[1\]=3 a\[2\]=4 ini\_a=ones(10); c\_a=ones(10); model = SDDP.LinearPolicyGraph( stages = 3, sense = :Min, lower\_bound = 0.0, optimizer = Gurobi.Optimizer, ) do …

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## [SDDiP.jl - LoadError: AssertionError: \[...\] == :Optimal](https://discourse.julialang.org/t/sddip-jl-loaderror-assertionerror-optimal/24781)

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**Author:** [@eltuck](https://discourse.julialang.org/u/eltuck)\
**Replies:** 10\
**Last updated:** [May 23, 2021, 2:47am UTC](https://discourse.julialang.org/t/sddip-jl-loaderror-assertionerror-optimal/24781 "2021-05-23T02:47:35Z")

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Hi all, I’m new to Julia (coming from AMPL), and I’m trying to solve a model using the SDDiP algorithm implemented in SDDiP.jl and CPLEX. I’m able to implement many of the example models, and the algorithm generally wo…

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## [Trying to solve a puzzle](https://discourse.julialang.org/t/trying-to-solve-a-puzzle/61515)

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**Author:** [@sogrbilja](https://discourse.julialang.org/u/sogrbilja)\
**Replies:** 23\
**Last updated:** [May 23, 2021, 2:32am UTC](https://discourse.julialang.org/t/trying-to-solve-a-puzzle/61515 "2021-05-23T02:32:19Z")

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Just recently I bumped on this: The PuzzlOR and I want to play a bit with that and solve it using JuMP. My approach is not yet certain, but something like this: load data into DICT(string, int) \* actually just 0 or 1 …

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## [Experience with using SimJulia](https://discourse.julialang.org/t/experience-with-using-simjulia/20232)

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**Author:** [@stroebel](https://discourse.julialang.org/u/stroebel)\
**Replies:** 1\
**Last updated:** [May 23, 2021, 1:54am UTC](https://discourse.julialang.org/t/experience-with-using-simjulia/20232 "2021-05-23T01:54:19Z")

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I am trying to follow along with one of the examples in the documentation of the library and in the code sample below I have the problem that the function silently “vanishes” at the line val = @yield ... and the simulati…

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## [Can JuMP.fix be use to fix Array{Float64,1} to Array{VariableRef,1}](https://discourse.julialang.org/t/can-jump-fix-be-use-to-fix-array-float64-1-to-array-variableref-1/61640)

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**Author:** [@BYS](https://discourse.julialang.org/u/BYS)\
**Replies:** 3\
**Last updated:** [May 23, 2021, 1:27am UTC](https://discourse.julialang.org/t/can-jump-fix-be-use-to-fix-array-float64-1-to-array-variableref-1/61640 "2021-05-23T01:27:12Z")

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Hi, I find if I write model=Model(); ep=ones(20); @variable(model,ep1\[1:20\]); JuMP.fix(ep1,ep); I find it cannot be deal with, and do the JuMP.fix need to fix one by one? and How can I do it? Thanks a lot.

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## [Best practice for storing data in Packages](https://discourse.julialang.org/t/best-practice-for-storing-data-in-packages/36808)

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**Author:** [@ashiklom](https://discourse.julialang.org/u/ashiklom)\
**Replies:** 5\
**Last updated:** [May 23, 2021, 12:13am UTC](https://discourse.julialang.org/t/best-practice-for-storing-data-in-packages/36808 "2021-05-23T00:13:51Z")

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I would like to create a package for a model that ships with its own internal data. Basically, I’m looking for the Julia equivalent to R’s R/sysdata.rda (link). I currently have something that looks like this: module M…

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## [Convolutional Bayesian Neural Networks](https://discourse.julialang.org/t/convolutional-bayesian-neural-networks/61650)

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**Author:** [@sapo](https://discourse.julialang.org/u/sapo)\
**Replies:** 7\
**Last updated:** [May 22, 2021, 7:51pm UTC](https://discourse.julialang.org/t/convolutional-bayesian-neural-networks/61650 "2021-05-22T19:51:35Z")

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Hello, I need to implement convolutional and partly bayesian neural networks. I looked into Turing.jl but it looks like it still doesn’t provide such option. Any suggestion?

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## [Display an image on a GUI](https://discourse.julialang.org/t/display-an-image-on-a-gui/57500)

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**Author:** [@Saliha](https://discourse.julialang.org/u/Saliha)\
**Replies:** 2\
**Last updated:** [May 22, 2021, 5:21pm UTC](https://discourse.julialang.org/t/display-an-image-on-a-gui/57500 "2021-05-22T17:21:25Z")

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Hello! I am a beginner with julia programming. I am building a desktop app for a 3d plant architecture model. I am using Interact and blink. I need to insert images to my app (expl logo). I coudn’t find on the Interact …

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## [Reusing exact same layer and parameters](https://discourse.julialang.org/t/reusing-exact-same-layer-and-parameters/61618)

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**Author:** [@crinders](https://discourse.julialang.org/u/crinders)\
**Replies:** 3\
**Last updated:** [May 22, 2021, 2:27pm UTC](https://discourse.julialang.org/t/reusing-exact-same-layer-and-parameters/61618 "2021-05-22T14:27:46Z")

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I want to reuse the exact same layer in a network. But I can’t figure out whether my naive approach will do that. My toy architecture is using Flux D1 = Dense(2,2) D2 = Dense(2,2) NaiveReuse = Chain(D1, Parallel(vcat,Ch…

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## [Makie - DataInspector - GLFWError (PLATFORM\_ERROR)](https://discourse.julialang.org/t/makie-datainspector-glfwerror-platform-error/61630)

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**Author:** [@walra356](https://discourse.julialang.org/u/walra356)\
**Replies:** 1\
**Last updated:** [May 22, 2021, 12:00pm UTC](https://discourse.julialang.org/t/makie-datainspector-glfwerror-platform-error/61630 "2021-05-22T12:00:20Z")

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The DataInspector is a great new asset of Makie. I took it immediately in use. Thanks to the developers! Unfortunately, I found that after inspecting data for some time an unidentified interrupt spoils the joy with the…

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## [Cannot locate artifact 'libknet8' in KNet](https://discourse.julialang.org/t/cannot-locate-artifact-libknet8-in-knet/61631)

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**Author:** [@gforchini](https://discourse.julialang.org/u/gforchini)\
**Replies:** 0\
**Last updated:** [May 22, 2021, 10:10am UTC](https://discourse.julialang.org/t/cannot-locate-artifact-libknet8-in-knet/61631 "2021-05-22T10:10:09Z")

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Hello, I have downloaded Knet from https://github.com/denizyuret/Knet.jl (but I have the same problem when I download Knet with Pkg.add(“Knet”)) to a Nvidia Jetson Nano (as it is an inexpensive method to finalise a Mon…

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## [Why is this optimization problem so slow in Julia? In R it took 60s](https://discourse.julialang.org/t/why-is-this-optimization-problem-so-slow-in-julia-in-r-it-took-60s/61557)

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**Author:** [@xiaodai](https://discourse.julialang.org/u/xiaodai)\
**Replies:** 31\
**Last updated:** [May 22, 2021, 9:52am UTC](https://discourse.julialang.org/t/why-is-this-optimization-problem-so-slow-in-julia-in-r-it-took-60s/61557 "2021-05-22T09:52:28Z")

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Update I copied the data and the code into a repo GitHub - xiaodaigh/optim-slow-julia I am trying to estimate the strength of Go player ( or any other two player broad game where the only outcomes are win or loser). M…

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## [Colorschemes stopped working](https://discourse.julialang.org/t/colorschemes-stopped-working/61574)

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**Author:** [@Tbl](https://discourse.julialang.org/u/Tbl)\
**Replies:** 5\
**Last updated:** [May 22, 2021, 4:52am UTC](https://discourse.julialang.org/t/colorschemes-stopped-working/61574 "2021-05-22T04:52:52Z")

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I have a rather strange bug. For seemingly no reason everything related to colorschemes.jl stopped working for me in Julia 1.6, Plots 1.0.14. Colorschemes from ColorSchemes · Plots are not available too. For example usi…

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## [Status of relaxation: NORM\_LIMIT](https://discourse.julialang.org/t/status-of-relaxation-norm-limit/61078)

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**Author:** [@manoj.centura](https://discourse.julialang.org/u/manoj.centura)\
**Replies:** 7\
**Last updated:** [May 21, 2021, 9:39pm UTC](https://discourse.julialang.org/t/status-of-relaxation-norm-limit/61078 "2021-05-21T21:39:21Z")

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Hi All, I am solving an MINLP using Juniper and getting this Status of relaxation: NORM\_LIMIT any suggestions how to resolve this. Thanks

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## [A comparison of common distributions in Julia, Python and R](https://discourse.julialang.org/t/a-comparison-of-common-distributions-in-julia-python-and-r/61604)

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**Author:** [@sylvaticus](https://discourse.julialang.org/u/sylvaticus)\
**Replies:** 1\
**Last updated:** [May 21, 2021, 9:06pm UTC](https://discourse.julialang.org/t/a-comparison-of-common-distributions-in-julia-python-and-r/61604 "2021-05-21T21:06:41Z")

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Common distributions in Julia, Python and R Please report errors on GitHub - sylvaticus/commonDistributionsInJuliaPythonR: Common probability distributions in Julia, Python and R Loading packages Julia: using Distri…

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## [How can I forcefully bridge sum-of-squares constraints into PSD constraints?](https://discourse.julialang.org/t/how-can-i-forcefully-bridge-sum-of-squares-constraints-into-psd-constraints/61365)

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**Author:** [@ciba12](https://discourse.julialang.org/u/ciba12)\
**Replies:** 4\
**Last updated:** [May 21, 2021, 8:48pm UTC](https://discourse.julialang.org/t/how-can-i-forcefully-bridge-sum-of-squares-constraints-into-psd-constraints/61365 "2021-05-21T20:48:37Z")

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Hi everyone, I have model written using SumOfSquares.jl, it contains “F in S” pairs such as Vector{AffExpr}\`-in-\`SumOfSquares.SOSPolynomialSet{BasicSemialgebraicSet{Float64, Polynomial{true, Float64}, FullSpace}, Monom…

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## [GaussianMixtures question](https://discourse.julialang.org/t/gaussianmixtures-question/61526)

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**Author:** [@SergeantMike67](https://discourse.julialang.org/u/SergeantMike67)\
**Replies:** 8\
**Last updated:** [May 21, 2021, 7:11pm UTC](https://discourse.julialang.org/t/gaussianmixtures-question/61526 "2021-05-21T19:11:20Z")

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I have a dataset that results from calculating the CpG observed over expected (an estimation of cytosine methylation in the genome) and I am trying to fit the data into a two mean, 1D Gaussian Mixture model using Gaussia…

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## [Blank Heatmaps in GLMakie](https://discourse.julialang.org/t/blank-heatmaps-in-glmakie/61567)

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**Author:** [@tt1234567](https://discourse.julialang.org/u/tt1234567)\
**Replies:** 22\
**Last updated:** [May 21, 2021, 5:48pm UTC](https://discourse.julialang.org/t/blank-heatmaps-in-glmakie/61567 "2021-05-21T17:48:21Z")

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I’ve tried the recent exciting Makie update but heatmaps all seem to come out completely blank. E.g. using GLMakie fig = Figure() ax = fig\[1,1\] = Axis(fig) hm = heatmap!(ax,randn(5, 5), axis = (aspect = 1,)) Colorbar(fi…

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## [How can I trigger Node(array) after changing array element in Makie?](https://discourse.julialang.org/t/how-can-i-trigger-node-array-after-changing-array-element-in-makie/61414)

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**Author:** [@LSellers](https://discourse.julialang.org/u/LSellers)\
**Replies:** 3\
**Last updated:** [May 21, 2021, 5:07pm UTC](https://discourse.julialang.org/t/how-can-i-trigger-node-array-after-changing-array-element-in-makie/61414 "2021-05-21T17:07:19Z")

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The root issue is that when I have data = Node(\[1 2 3 4 5 6\]), I cannot force data to update elsewhere by simply changing the value of one element (data\[\]\[1\] = 0). As far as I can tell, I have to assign data\[\] = \[0 2 3 …

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## [How many ways can it be reshaped?](https://discourse.julialang.org/t/how-many-ways-can-it-be-reshaped/61530)

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**Author:** [@rocco\_sprmnt21](https://discourse.julialang.org/u/rocco_sprmnt21)\
**Replies:** 3\
**Last updated:** [May 21, 2021, 3:24pm UTC](https://discourse.julialang.org/t/how-many-ways-can-it-be-reshaped/61530 "2021-05-21T15:24:43Z")

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I have found a few ways to solve the following problem, but I’m sure there are many others. X=\["Product\_id","Date","Unit","Revenue","Product\_id","Date","Unit","Revenue","Product\_id","Date","Unit","Revenue"\] Y=\["1234","0…

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## [Basic question on distributing modules](https://discourse.julialang.org/t/basic-question-on-distributing-modules/61542)

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**Author:** [@threadedblue](https://discourse.julialang.org/u/threadedblue)\
**Replies:** 2\
**Last updated:** [May 21, 2021, 12:38pm UTC](https://discourse.julialang.org/t/basic-question-on-distributing-modules/61542 "2021-05-21T12:38:14Z")

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I am using Julia 1.6.1 with Distributed. Q: Must I first install a module on every node in a cluster to use it? Or is there a way to “push” a module to where it’s needed at runtime? Apparently, if my reading is any g…

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## [Multivariate noncentral hypergeometric distributions](https://discourse.julialang.org/t/multivariate-noncentral-hypergeometric-distributions/58450)

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**Author:** [@EvoArt](https://discourse.julialang.org/u/EvoArt)\
**Replies:** 5\
**Last updated:** [May 21, 2021, 9:59am UTC](https://discourse.julialang.org/t/multivariate-noncentral-hypergeometric-distributions/58450 "2021-05-21T09:59:49Z")

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Hi there Just wondering if there are plans for the inclusion of multivariate noncentral hypergeometric distributions in Distributions.jl? In particular, I need to make use of Wallenius’ version. If it’s not on the card…

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## [Loading modules on multipole nodes](https://discourse.julialang.org/t/loading-modules-on-multipole-nodes/61569)

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**Author:** [@Frisus95](https://discourse.julialang.org/u/Frisus95)\
**Replies:** 0\
**Last updated:** [May 21, 2021, 9:42am UTC](https://discourse.julialang.org/t/loading-modules-on-multipole-nodes/61569 "2021-05-21T09:42:27Z")

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Good day everyone! As the title suggests, I have a question about how to run a parallel computation on multiple nodes in a cluster. My julia code calls an external library, written in C, and then parallelizes across mu…

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## [How to handle missings in CairoMakie](https://discourse.julialang.org/t/how-to-handle-missings-in-cairomakie/61566)

<div class="topic-metadata">

**Author:** [@vjd](https://discourse.julialang.org/u/vjd)\
**Replies:** 4\
**Last updated:** [May 21, 2021, 9:07am UTC](https://discourse.julialang.org/t/how-to-handle-missings-in-cairomakie/61566 "2021-05-21T09:07:51Z")

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How does one handle missing in plots? I am on \[13f3f980\] CairoMakie v0.4.5 Reproducer below. I haven’t grouped by id below, but besides that point, how do we plot dv2. The only way I can see doing that now is to cre…

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