Skip to content

[Distributed] make nextproc use atomic operations #42238

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 14, 2021
Merged

[Distributed] make nextproc use atomic operations #42238

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
10 changes: 3 additions & 7 deletions stdlib/Distributed/src/macros.jl
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,14 +1,10 @@
# This file is a part of Julia. License is MIT: https://julialang.org/license

let nextidx = 0
let nextidx = Threads.Atomic{Int}(0)
global nextproc
function nextproc()
p = -1
if p == -1
p = workers()[(nextidx % nworkers()) + 1]
nextidx += 1
end
p
idx = Threads.atomic_add!(nextidx, 1)
return workers()[(idx % nworkers()) + 1]
end
end

Expand Down