Comments (4)
What target are you running on? (e.g. x86_64-unknown-linux-gnu
)
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What target are you running on? (e.g.
x86_64-unknown-linux-gnu
)
rustup default:stable-x86_64-unknown-linux-gnu (default)
from rayon.
OK, so with all *-linux-gnu
targets, an important caveat is that glibc's dlclose
doesn't do anything when there's a pending TLS destructor from that library. I don't think any of rayon's own thread_local!
variables have destructors, but crossbeam-epoch
does, and even the standard library has ThreadInfo
that must be dropped.
I'm not sure, but it might work if you guarantee all rayon threads have completely exited before you try to unload. You can't do that at all with the global pool, and an explicit ThreadPool
handle doesn't synchronize its threads on exit either (#688). I think even my suggestion there to use build_scoped
might not be good enough given rust-lang/rust#116237, but a stronger version of that could collect and join
all the thread handles.
But even with all that, it's possible that some code might have registered TLS destructors in non-rayon threads too, and I have no idea what could be done about that.
from rayon.
but a stronger version of that could collect and
join
all the thread handles.
Here's a prototype of that: master...cuviper:rayon:join-scoped
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Related Issues (20)
- Consider adding `IntoParalleliterator` impls for boxed slices, etc. HOT 1
- [Question] If parallel iterations also themselves use parallel iteration will the work stealing "just work"? HOT 2
- Yet more confusion about panic_handlers HOT 3
- Synchronous nature of join might result in suboptimal use of compute resources HOT 1
- par_bridge and IndexedParallelIterator HOT 2
- Feature Request: par_enumerate() HOT 3
- rayon_wasm : "Operation not supported on this platform" when setting number of global threads to be used HOT 1
- Extremely deep call stack on MacOS HOT 2
- calling `buffer.par_sort_unstable_by_key` from a task calls the task itself HOT 4
- How to implement ParallelIterator for a custom Range? HOT 13
- How to dynamically change the number of threads during runtime? HOT 2
- `ParallelExtend` for tuples of references HOT 3
- Using async iterator-like SQLX fetch with Rayon HOT 4
- Docs on "spawn" don't say what exactly this function does HOT 1
- Add SIMD SORT as an option HOT 1
- Handle/guard support for current thread pool HOT 1
- Optional parallelization
- Way to have assertion whether something is outside of a rayon task HOT 2
- Error reporting in scoped tasks
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