Hi, from what I understand, PARTR (resp. parts of what it will become) will be part of Julia 1.2. I’m keen to try it out, if possible, by my attempts at starting tasks within an @threads loop have failed, the tasks always seem to run on thread 1. Does someone have a short PARTR example (assuming i…

I believe one has to set an environment variable, export JULIA_NUM_THREADS=2, or of course any number that fits your machine. $ export JULIA_NUM_THREADS=4 PetrKrysl@Spectre MINGW64 ~/Downloads/FinEtools.jl (master) $ julia _ _ _ _(_)_ | Documentation: https://docs.juli…

Sure, I do set JULIA_NUM_THREADS, of course, and the @threads loop uses them - just the tasks I spawn in there all seem to run on thread one. By maybe I misunderstand how PARTR is supposed to work?

See here: [image] Julia 1.2 feature freeze April 4th Internals & Design I see, thanks. Will nested @threads loops work properly (depth first)? Or would that require a new API?

Ah, thanks, that clears thing up regarding @threads. So there’s some machinery for PARTR in v1.2, but not enough to use it yet? Or does one use it independently from @threads?

The machinery is mostly all in place, but for now @threads will still use the regular static scheduling. We don’t know yet if there will be a different syntax to use depth-first scheduling. For now then, there are pretty much no user-facing changes, which the exception as @jeff.bezanson said that …

Thanks for the infos! I guess we’ll hear more exiting things in this direction in Baltimore. :slight_smile:

Using PARTR in Julia 1.2?

General Usage

jebej June 20, 2019, 3:59pm 5

See here:

Topic		Replies	Views
Parallel Programming New to Julia threads	17	822	June 7, 2022
Customize number of threads interactively General Usage multithreading	8	2160	April 30, 2019
Issue number of threads New to Julia	4	875	September 5, 2018
How to change the number of threads? General Usage parallel , multithreading	10	23483	June 4, 2025
@threads for only using master thread? General Usage multithreading	7	1081	November 24, 2019

Using PARTR in Julia 1.2?

Related topics