make thread 1 interactive when there is an interactive pool, so it can run the event loop #49094
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JeffBezanson
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vtjnash
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Mar 22, 2023
kpamnany
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Mar 22, 2023
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Thanks for this fix! I've been meaning to dig into why our interactive thread isn't being very interactive... |
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Ok I have implemented all of the above. I wasn't sure we wanted to always have 2 threadpools but I guess there is no harm. The new function is provisionally named |
kpamnany
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Mar 23, 2023
IanButterworth
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merge me
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Removing |
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Bump |
NHDaly
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Apr 11, 2023
…n run the event loop
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Xnartharax
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Apr 19, 2023
…n run the event loop (JuliaLang#49094)
This was referenced May 1, 2023
vtjnash
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Since #49094, the docstring of `nthreads` has been incorrect. It currently states that > The threads in default have id numbers `1:nthreads(:default)`. whereas that is no longer true: ```julia julia> filter(i -> Threads.threadpool(i) == :interactive, 1:Threads.maxthreadid()) 3-element Vector{Int64}: 1 2 3 julia> filter(i -> Threads.threadpool(i) == :default, 1:Threads.maxthreadid()) 6-element Vector{Int64}: 4 5 6 7 8 9 ```
KristofferC
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Since #49094, the docstring of `nthreads` has been incorrect. It currently states that > The threads in default have id numbers `1:nthreads(:default)`. whereas that is no longer true: ```julia julia> filter(i -> Threads.threadpool(i) == :interactive, 1:Threads.maxthreadid()) 3-element Vector{Int64}: 1 2 3 julia> filter(i -> Threads.threadpool(i) == :default, 1:Threads.maxthreadid()) 6-element Vector{Int64}: 4 5 6 7 8 9 ``` (cherry picked from commit 95ae27f)
Drvi
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Since JuliaLang#49094, the docstring of `nthreads` has been incorrect. It currently states that > The threads in default have id numbers `1:nthreads(:default)`. whereas that is no longer true: ```julia julia> filter(i -> Threads.threadpool(i) == :interactive, 1:Threads.maxthreadid()) 3-element Vector{Int64}: 1 2 3 julia> filter(i -> Threads.threadpool(i) == :default, 1:Threads.maxthreadid()) 6-element Vector{Int64}: 4 5 6 7 8 9 ``` (cherry picked from commit 95ae27f)
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There is a major problem preventing interactive threads from working well, which is that outside an
@threadsregion thread 1 is still the only one allowed to run the event loop. Responding to events is kind of the whole deal with interactive threads, so they need to be able to enter the event loop. We can't fully fix this until_threadedregionis finally removed. So to make interactive threads work in the meantime, this PR proposes making the interactive pool the first one, so thread 1 is interactive. For code like the following:this PR takes it from not working to working.