Can anyone see any path towards running Julia code on iOS / Android? It would be fantastic to be able to solve the two-language problem (e.g. prototyping in Python and deploying in C++). The idea would be to release an app on the app-store that contains a Julia kernel. Would it be possible to get Julia to precompile the Julia code, so that it generates a binary library exposing C-style functions, and the iOS/Android code could link against this library? Something like this could massively accelerate the development of apps that require complex mathematics. And how about the full-blown Julia process of dynamic compilation? Apple has a ‘no compilers’ rule but IIRC it has allowed many apps that violate this rule in the past. If the app consumer is allowed to write and execute arbitrary Julia code this may fall foul, but if the developer is the only one writing the Julia code then Apple may be willing to allow it. π

https://github.com/termux/termux-packages/issues/58#issuecomment-529036798

Haha thanks! That’s awesome! I got it installed via those same instructions as well. :slight_smile: Neat fun! $ pkg install wget $ wget https://its-pointless.github.io/setup-pointless-repo.sh $ bash setup-pointless-repo.sh $ pkg install julia # julia 1.2.0 fork Package request: julia opened 03:54PM - 16 Nov 15 UTC (UTC) [0xallie] 0xallie help wanted package request http://julialang.org/ [Screenshot_20190930-140727]

I’m just compiling Julia inside iSH for iOS which provides a virtualized x86 Linux environment. Will let you know how it goes (binary download of Julia was not working, see Julia won't start · Issue #259 · ish-app/ish · GitHub ). By the way, if it is possible to create something like full x86 emulation iSH (it uses a kind of JIT written in assembly) there must be some similar way to get Julia JIT to run natively with iOS restrictions. Anyone mad enough to dive into this ? :wink:

How do we do that! Can you please elaborate on how to run Julia on termux!

Check out my guide here. I found ti searching for Android in this forum [image] Using Julia on Android? General Usage Complete Steps to Running Julia on your Android (tested on Huawei P30 pro as of 20190927) Step 1 Download the termux app on your Android (Play Store worked for me) Step 2 Install Ubuntu on termux by following this guide. For those who are too lazy to open the page, here are the instructions from the page Installation steps Update termux: apt-get update && apt-get upgrade -y Install wget: apt-get install wget -y Install proot: apt-get install proot -y Install git: apt-get install git -y …

Thank even I found the same guide but I want to connect it a jupyter app and run from browser

Up to now julia can be built for iSH but unfortunately freezes on executing code. One reason could be unimplemented syscalls related to memory management and tracing (e.g. gdb doesn’t work as iSH doesn’t support ptrace syscalls). Anyway, performance wouldnt bee too nice due to emulation.

As a heads up to users of Termux, it looks like Android has had some changes to their security model in Android 10 which may affect (and possible eliminate) Julia functionality: https://github.com/termux/termux-packages/wiki/Termux-and-Android-10

I’ve linked a pretty huge github issue below, but the tl;dr is this: Native code which is not packaged in an .apk may not be executed by the user or non-system applications. The solution they are currently employing is to repackage everything as .apks, which will be downloaded and installed by the pkg utility in termux. Many applications will still work, including interpreted languages like Python or Ruby. The same cannot be said for compiled languages. One proposal is to compile code as an apk and installed by the user, but for a language like Julia with as much metaprogramming as it contains may not be compatible with that model. https://github.com/termux/termux-app/issues/1072#issuecomment-474385386

Julia on iOS and Android

Internals & Design

xiaodai February 4, 2020, 11:21pm 41

Check out my guide here. I found ti searching for Android in this forum

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Julia on iOS and Android

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