# Latest

**URL:** https://discourse.julialang.org/latest.md?page=1996

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

**Page:** 1997

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## [Propagating exceptions from MATLAB to Julia](https://discourse.julialang.org/t/propagating-exceptions-from-matlab-to-julia/24177)

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**Author:** [@yakir12](https://discourse.julialang.org/u/yakir12)\
**Replies:** 0\
**Last updated:** [May 13, 2019, 2:34pm UTC](https://discourse.julialang.org/t/propagating-exceptions-from-matlab-to-julia/24177 "2019-05-13T14:34:50Z")

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I’ve posted an issue mentioning this in MATLAB.jl a few months ago, but maybe someone here has an idea. I’m looking for a way to have exceptions inside Matlab propagate to Julia. Right now they might elicit some printout…

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## [\[ANN\] Yao.jl: Extensible, Efficient Quantum Algorithm Design for Humans](https://discourse.julialang.org/t/ann-yao-jl-extensible-efficient-quantum-algorithm-design-for-humans/11888)

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**Author:** [@Roger-luo](https://discourse.julialang.org/u/Roger-luo)\
**Replies:** 5\
**Last updated:** [May 13, 2019, 2:23pm UTC](https://discourse.julialang.org/t/ann-yao-jl-extensible-efficient-quantum-algorithm-design-for-humans/11888 "2019-05-13T14:23:09Z")

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A slide show is also available: http://104.224.129.42/slides/yao/#/ Yao is a framework for quantum algorithm design. The package provide Julians the ability to design and test your own quantum algorithm on a classical…

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## [Subplot not working in the 1.0 version](https://discourse.julialang.org/t/subplot-not-working-in-the-1-0-version/24123)

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**Author:** [@liuyoufang](https://discourse.julialang.org/u/liuyoufang)\
**Replies:** 4\
**Last updated:** [May 13, 2019, 2:02pm UTC](https://discourse.julialang.org/t/subplot-not-working-in-the-1-0-version/24123 "2019-05-13T14:02:10Z")

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Hi All, I just installed the Julia 1.1 version. However I am not able to display some plot. Here is the sequence that I did:: using PyPlot subplot(133) Then it showed me a long list of error message:: 2019-05-11 15:…

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## [64bit ARM version missing from download page](https://discourse.julialang.org/t/64bit-arm-version-missing-from-download-page/24170)

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**Author:** [@johnh](https://discourse.julialang.org/u/johnh)\
**Replies:** 1\
**Last updated:** [May 13, 2019, 12:43pm UTC](https://discourse.julialang.org/t/64bit-arm-version-missing-from-download-page/24170 "2019-05-13T12:43:46Z")

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The tarball for thr aarch64 ARM version seems to be missing from the download page. I can help build a version - I have access to a nice ARM64 system. My apologies if this is untrue, as I am working behind a corporate …

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## [Array Type and Values-as-Parameters Performance penalty?](https://discourse.julialang.org/t/array-type-and-values-as-parameters-performance-penalty/24092)

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**Author:** [@ianfiske](https://discourse.julialang.org/u/ianfiske)\
**Replies:** 2\
**Last updated:** [May 13, 2019, 12:39pm UTC](https://discourse.julialang.org/t/array-type-and-values-as-parameters-performance-penalty/24092 "2019-05-13T12:39:52Z")

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The user manual at Performance Tips · The Julia Language suggests that we avoid types with values as parameters. However, doesn’t the base Array{T, N} have a value-parameter N? How can Base get away with this but have …

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## [Optim package in parallel](https://discourse.julialang.org/t/optim-package-in-parallel/24168)

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**Author:** [@drarnau](https://discourse.julialang.org/u/drarnau)\
**Replies:** 0\
**Last updated:** [May 13, 2019, 11:06am UTC](https://discourse.julialang.org/t/optim-package-in-parallel/24168 "2019-05-13T11:06:35Z")

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Does anybody know if it is possible to run the Optim.jl package in parallel? Any example on how to do it?

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## [Help to build a macro to mimic the With of VBA](https://discourse.julialang.org/t/help-to-build-a-macro-to-mimic-the-with-of-vba/24116)

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**Author:** [@Ronis\_BR](https://discourse.julialang.org/u/Ronis_BR)\
**Replies:** 14\
**Last updated:** [May 13, 2019, 11:03am UTC](https://discourse.julialang.org/t/help-to-build-a-macro-to-mimic-the-with-of-vba/24116 "2019-05-13T11:03:14Z")

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Hi guys! Sometimes, the With feature of VBA can be very useful. Consider something like: general.insert("simProgress", generalFrame.simProgress); general.insert("simulationDate", simulationDate); general.in…

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## ['FallBack Renderer" checkbox to gain terminal speed in juno Atom](https://discourse.julialang.org/t/fallback-renderer-checkbox-to-gain-terminal-speed-in-juno-atom/24165)

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**Author:** [@Ajaychat3](https://discourse.julialang.org/u/Ajaychat3)\
**Replies:** 4\
**Last updated:** [May 13, 2019, 10:44am UTC](https://discourse.julialang.org/t/fallback-renderer-checkbox-to-gain-terminal-speed-in-juno-atom/24165 "2019-05-13T10:44:02Z")

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I am using Julia 1.1.0 on ubuntu 18.04 LTS. I have notices that the by checking the checkbox " Fallback Renderer", the response of julia terminal get improved. However, If I close and reopen Atom, the response rate of ju…

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## [Schedule for JuliaPro 0.7 / 1.0](https://discourse.julialang.org/t/schedule-for-juliapro-0-7-1-0/13361)

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**Author:** [@tbo](https://discourse.julialang.org/u/tbo)\
**Replies:** 13\
**Last updated:** [May 13, 2019, 10:29am UTC](https://discourse.julialang.org/t/schedule-for-juliapro-0-7-1-0/13361 "2019-05-13T10:29:16Z")

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Hi folks, I’m preparing a short introductory course on Julia for some undergrad students at the beginning of October. Just wanted to know when version 0.7/1.0 of JuliaPro will be out. Will there even be a JuliaPro 0.7? …

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## [JuliaInXL on macOS](https://discourse.julialang.org/t/juliainxl-on-macos/24166)

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**Author:** [@askvorts](https://discourse.julialang.org/u/askvorts)\
**Replies:** 0\
**Last updated:** [May 13, 2019, 9:16am UTC](https://discourse.julialang.org/t/juliainxl-on-macos/24166 "2019-05-13T09:16:11Z")

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I was wondering if there are plans to support JuliaInXL on macOS in the near future? Thank you

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## [Web Julia Roadmap Assessment](https://discourse.julialang.org/t/web-julia-roadmap-assessment/24157)

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**Author:** [@Nosferican](https://discourse.julialang.org/u/Nosferican)\
**Replies:** 1\
**Last updated:** [May 13, 2019, 8:45am UTC](https://discourse.julialang.org/t/web-julia-roadmap-assessment/24157 "2019-05-13T08:45:22Z")

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I wanted to consult the status of some web related functionality in the Julia ecosystem. For HTTP: HTTP.jl For HTML parser: Gumbo.jl Potentially related: Interact.jl Reactive.jl Not entirely sure, Genie Framewo…

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## ["ERROR: Unsatisfiable requirements detected for..." how to understand this?](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-for-how-to-understand-this/24158)

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**Author:** [@zby920415](https://discourse.julialang.org/u/zby920415)\
**Replies:** 1\
**Last updated:** [May 13, 2019, 7:26am UTC](https://discourse.julialang.org/t/error-unsatisfiable-requirements-detected-for-how-to-understand-this/24158 "2019-05-13T07:26:03Z")

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I’m using JuliaPro 1.1.0.1 with Julia 1.1.0. When I updated the package “Expectations”, I encountered this error, how to understand this? ERROR: Unsatisfiable requirements detected for package Expectations \[2fe49d83\]: …

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## [Separable convolution](https://discourse.julialang.org/t/separable-convolution/24141)

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**Author:** [@Tomas\_Pevny](https://discourse.julialang.org/u/Tomas_Pevny)\
**Replies:** 7\
**Last updated:** [May 13, 2019, 6:15am UTC](https://discourse.julialang.org/t/separable-convolution/24141 "2019-05-13T06:15:27Z")

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Hi All, I would like to run a separate over individual filters. Specifically imagine I have two matrices and I want to convolve each of them with its own filter. And I wonder if it possible to write it as a single convo…

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## [X-axis labels for histograms and violins](https://discourse.julialang.org/t/x-axis-labels-for-histograms-and-violins/24160)

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**Author:** [@rakeshvar](https://discourse.julialang.org/u/rakeshvar)\
**Replies:** 2\
**Last updated:** [May 13, 2019, 5:54am UTC](https://discourse.julialang.org/t/x-axis-labels-for-histograms-and-violins/24160 "2019-05-13T05:54:58Z")

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I have three classes that I want to visualize as a violin plot. I have data as an array or arrays. And names as an array of strings. I want the names to be shown on the x-axis. using StatPlots gr() x = \[rand(9) for i in…

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## [Error "ERROR\_NO\_BINARY\_FOR\_GPU" with CUDAnative.jl/CuArrays.jl](https://discourse.julialang.org/t/error-error-no-binary-for-gpu-with-cudanative-jl-cuarrays-jl/24130)

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**Author:** [@v-i-s-h](https://discourse.julialang.org/u/v-i-s-h)\
**Replies:** 4\
**Last updated:** [May 13, 2019, 3:45am UTC](https://discourse.julialang.org/t/error-error-no-binary-for-gpu-with-cudanative-jl-cuarrays-jl/24130 "2019-05-13T03:45:26Z")

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Hi, I’m trying to install CuArrays.jl. Even though installation finishes without any errors, the tests are failing with the following error message: CUDA error: no kernel image is available for execution on the devic…

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## [Github Package Registry](https://discourse.julialang.org/t/github-package-registry/24142)

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**Author:** [@essenciary](https://discourse.julialang.org/u/essenciary)\
**Replies:** 2\
**Last updated:** [May 13, 2019, 2:41am UTC](https://discourse.julialang.org/t/github-package-registry/24142 "2019-05-13T02:41:55Z")

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Stumbled onto this - might be interesting for Pkg integration:

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## [Relative path to file](https://discourse.julialang.org/t/relative-path-to-file/24114)

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**Author:** [@dg.aragones](https://discourse.julialang.org/u/dg.aragones)\
**Replies:** 4\
**Last updated:** [May 12, 2019, 10:52pm UTC](https://discourse.julialang.org/t/relative-path-to-file/24114 "2019-05-12T22:52:03Z")

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I’m working in a model with Julia that extracts some data from a spreadsheet. Everything works fine, but I’d like to read the spreadsheet into Julia using a relative path, to be able to run the Julia file from different …

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## [How to call C++ member function in julia?](https://discourse.julialang.org/t/how-to-call-c-member-function-in-julia/24104)

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**Author:** [@alligatorme](https://discourse.julialang.org/u/alligatorme)\
**Replies:** 5\
**Last updated:** [May 12, 2019, 9:29pm UTC](https://discourse.julialang.org/t/how-to-call-c-member-function-in-julia/24104 "2019-05-12T21:29:47Z")

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by using ccall and function address, the global function in C++ can be called. But how about member function? Calling member function needs the function pointer and object reference both, it seems that ccall cannot make …

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## [Interpreting @trace dynamic dispatch warning on apply\_type](https://discourse.julialang.org/t/interpreting-trace-dynamic-dispatch-warning-on-apply-type/24138)

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**Author:** [@venuur](https://discourse.julialang.org/u/venuur)\
**Replies:** 2\
**Last updated:** [May 12, 2019, 9:16pm UTC](https://discourse.julialang.org/t/interpreting-trace-dynamic-dispatch-warning-on-apply-type/24138 "2019-05-12T21:16:25Z")

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New to Julia, and I am trying to build good habits for writing functions. To that end I am applying the Traceur.trace macro to some of my functions and seeing what happens. Here’s an example I don’t understand. When I ru…

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## [How call to value of Windows vars from Julia?](https://discourse.julialang.org/t/how-call-to-value-of-windows-vars-from-julia/24137)

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**Author:** [@programista](https://discourse.julialang.org/u/programista)\
**Replies:** 4\
**Last updated:** [May 12, 2019, 9:14pm UTC](https://discourse.julialang.org/t/how-call-to-value-of-windows-vars-from-julia/24137 "2019-05-12T21:14:07Z")

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I try working with \*.bat and \*exe file in window from Julia level. Is file vol.bat with: cmd vol inside. I am trying get value of number HD to some julia variable julia\> myc=\`vol.bat\` \`vol.bat\` julia\> x=run(myc) C…

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## [Intel MKL with Distributed fails](https://discourse.julialang.org/t/intel-mkl-with-distributed-fails/24053)

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**Author:** [@platawiec](https://discourse.julialang.org/u/platawiec)\
**Replies:** 2\
**Last updated:** [May 12, 2019, 7:29pm UTC](https://discourse.julialang.org/t/intel-mkl-with-distributed-fails/24053 "2019-05-12T19:29:24Z")

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I’m attempting to use Intel MKL over multiple remote workers. I am using KissCluster.jl to set up a lightweight cluster on AWS and a machinefile to configure via addprocs(machines, enable\_threaded\_blas=true, topology=:m…

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## [(SOLVED) Update Widget Text/Values on Action](https://discourse.julialang.org/t/solved-update-widget-text-values-on-action/24146)

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**Author:** [@anon92994695](https://discourse.julialang.org/u/anon92994695)\
**Replies:** 2\
**Last updated:** [May 12, 2019, 7:20pm UTC](https://discourse.julialang.org/t/solved-update-widget-text-values-on-action/24146 "2019-05-12T19:20:42Z")

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Hey all I’ve been trying to use Julias on board UI for a few things. I’m having a hard time getting things the way I want them. Totally fine with making buttons, and having them do tasks on observables, everythings good …

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## [Pkg.add("PyCall") every time?](https://discourse.julialang.org/t/pkg-add-pycall-every-time/24136)

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**Author:** [@VincentTam](https://discourse.julialang.org/u/VincentTam)\
**Replies:** 6\
**Last updated:** [May 12, 2019, 3:52pm UTC](https://discourse.julialang.org/t/pkg-add-pycall-every-time/24136 "2019-05-12T15:52:31Z")

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I’ve installed both Python (2.7 and 3) & Julia on Ubuntu 18.04 LTS, and I’ve installed the package PyCall by running Pkg.add in the REPL. However, every time I need using PyCall, an ArgumentError pops up and I’m told to…

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## [Is it possible to use BSplines to interpolate when scaling using collection of ranges](https://discourse.julialang.org/t/is-it-possible-to-use-bsplines-to-interpolate-when-scaling-using-collection-of-ranges/24125)

<div class="topic-metadata">

**Author:** [@jints07](https://discourse.julialang.org/u/jints07)\
**Replies:** 2\
**Last updated:** [May 12, 2019, 2:55pm UTC](https://discourse.julialang.org/t/is-it-possible-to-use-bsplines-to-interpolate-when-scaling-using-collection-of-ranges/24125 "2019-05-12T14:55:10Z")

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I want to use scaled linear interpolation using BSplines with a 4-D matrix. One of the dimensions does not have all points equally spaced but is a 2 ranges put together. I read that BSplines are much faster than Gridded …

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## [Plots (GR backend): animate a moving window](https://discourse.julialang.org/t/plots-gr-backend-animate-a-moving-window/24133)

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**Author:** [@taqtiqa-mark](https://discourse.julialang.org/u/taqtiqa-mark)\
**Replies:** 2\
**Last updated:** [May 12, 2019, 9:10am UTC](https://discourse.julialang.org/t/plots-gr-backend-animate-a-moving-window/24133 "2019-05-12T09:10:20Z")

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Hi, Thank you for all the effort that has been put into the package Plots and the various backend packages. I’ve followed the various examples showing how to animate a plot and save it as a GIF. In the course of thos…

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## [JuliaDB Footer Line Skips](https://discourse.julialang.org/t/juliadb-footer-line-skips/24132)

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**Author:** [@jekyllstein](https://discourse.julialang.org/u/jekyllstein)\
**Replies:** 0\
**Last updated:** [May 12, 2019, 6:31am UTC](https://discourse.julialang.org/t/juliadb-footer-line-skips/24132 "2019-05-12T06:31:09Z")

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The CSV package has an option in CSV.File() to skip parsing lines at the end of a file, called “footerskip”. The loadtable function in JuliaDB has a keyword argument to skip rows at the beginning of a file (skiplines\_be…

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## [Solving a piecewise linear system](https://discourse.julialang.org/t/solving-a-piecewise-linear-system/18856)

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**Author:** [@Tamas\_Papp](https://discourse.julialang.org/u/Tamas_Papp)\
**Replies:** 23\
**Last updated:** [May 12, 2019, 3:06am UTC](https://discourse.julialang.org/t/solving-a-piecewise-linear-system/18856 "2019-05-12T03:06:23Z")

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The help I need here is mostly conceptual, but I suspect that either JuMP.jl or Convex.jl could do this. Any suggestions or pointers to texts/tutorials would be appreciated, I just don’t know how to reformulate this. I …

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## [What can cause significantly different performance for pisum microbenchmark on different workstations](https://discourse.julialang.org/t/what-can-cause-significantly-different-performance-for-pisum-microbenchmark-on-different-workstations/23256)

<div class="topic-metadata">

**Author:** [@adityam](https://discourse.julialang.org/u/adityam)\
**Replies:** 11\
**Last updated:** [May 12, 2019, 1:37am UTC](https://discourse.julialang.org/t/what-can-cause-significantly-different-performance-for-pisum-microbenchmark-on-different-workstations/23256 "2019-05-12T01:37:57Z")

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I am trying to understand what factors impact the performance of Julia code on different hardware. I have two workstations: WS1 is a three old old compute server and WS2 is a two year old desktop, both of which have comp…

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## [Juno tutorial](https://discourse.julialang.org/t/juno-tutorial/24106)

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**Author:** [@Paul18fr](https://discourse.julialang.org/u/Paul18fr)\
**Replies:** 3\
**Last updated:** [May 12, 2019, 12:11am UTC](https://discourse.julialang.org/t/juno-tutorial/24106 "2019-05-12T00:11:50Z")

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Hi My question is quite naive, but where can I find a goof tuto for Juno in order to start with? I’ve been digging into websites and internet, but I do not find such information? I’m coming from Matlab world, using Sp…

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## [Type Diagrams (like UML Class Diagrams for OOPs)](https://discourse.julialang.org/t/type-diagrams-like-uml-class-diagrams-for-oops/10378)

<div class="topic-metadata">

**Author:** [@rakeshvar](https://discourse.julialang.org/u/rakeshvar)\
**Replies:** 1\
**Last updated:** [May 11, 2019, 10:03pm UTC](https://discourse.julialang.org/t/type-diagrams-like-uml-class-diagrams-for-oops/10378 "2019-05-11T22:03:53Z")

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I am developing a moderately complicated system in Julia. There will be a lot of modules that can be plugged in and off; various combinations of these modules will result in various algorithms. The modules are mostly typ…

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