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add sticky task warning to @task and schedule #54815

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merged 1 commit into from
Jun 18, 2024

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The fact that @async causes the task that it was scheduled from to also become sticky is well documented in the warning in @async docs, but it's not clear that creating a task and scheduling it also has the same effect, by default.

@IanButterworth IanButterworth added docs This change adds or pertains to documentation multithreading Base.Threads and related functionality backport 1.10 Change should be backported to the 1.10 release backport 1.11 Change should be backported to release-1.11 labels Jun 15, 2024
@IanButterworth IanButterworth merged commit a9b4869 into JuliaLang:master Jun 18, 2024
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@IanButterworth IanButterworth deleted the ib/sticky_warning branch June 18, 2024 14:42
KristofferC pushed a commit that referenced this pull request Jun 19, 2024
The fact that `@async` causes the task that it was scheduled from to
also become sticky is well documented in the warning in [`@async`
docs](https://docs.julialang.org/en/v1/base/parallel/#Base.@async), but
it's not clear that creating a task and scheduling it also has the same
effect, by default.

(cherry picked from commit a9b4869)
@KristofferC KristofferC mentioned this pull request Jun 19, 2024
46 tasks
IanButterworth added a commit that referenced this pull request Jun 21, 2024
The fact that `@async` causes the task that it was scheduled from to
also become sticky is well documented in the warning in [`@async`
docs](https://docs.julialang.org/en/v1/base/parallel/#Base.@async), but
it's not clear that creating a task and scheduling it also has the same
effect, by default.
@IanButterworth IanButterworth mentioned this pull request Jun 21, 2024
60 tasks
KristofferC pushed a commit that referenced this pull request Jun 22, 2024
The fact that `@async` causes the task that it was scheduled from to
also become sticky is well documented in the warning in [`@async`
docs](https://docs.julialang.org/en/v1/base/parallel/#Base.@async), but
it's not clear that creating a task and scheduling it also has the same
effect, by default.
KristofferC added a commit that referenced this pull request Jun 25, 2024
Backported PRs:
- [x] #54361 <!-- [LBT] Upgrade to v5.9.0 -->
- [x] #54474 <!-- Unalias source from dest in copytrito -->
- [x] #54548 <!-- Fixes for bitcast bugs with LLVM 17 / opaque pointers
-->
- [x] #54191 <!-- make `AbstractPipe` public -->
- [x] #53402 <!-- Add `jl_getaffinity` and `jl_setaffinity` -->
- [x] #53356 <!-- Rename at-scriptdir project argument to at-script and
search upwards for Project.toml -->
- [x] #54545 <!-- typeintersect: fix incorrect innervar handling under
circular env -->
- [x] #54586 <!-- Set storage class of julia globals to dllimport on
windows to avoid auto-import weirdness. Forward port of #54572 -->
- [x] #54587 <!-- Accomodate for rectangular matrices in `copytrito!`
-->
- [x] #54617 <!-- CLI: Use `GetModuleHandleExW` to locate libjulia.dll
-->
- [x] #54605 <!-- Allow libquadmath to also fail as it is not available
on all systems -->
- [x] #54634 <!-- Fix trampoline assembly for build on clang 18 on apple
silicon -->
- [x] #54635 <!-- Aggressive constprop in trevc! to stabilize triangular
eigvec -->
- [x] #54645 <!-- ensure we set the right value to gc_first_tid -->
- [x] #54554 <!-- make elsize public -->
- [x] #54648 <!-- Construct LazyString in error paths for tridiag -->
- [x] #54658 <!-- fix missing uuid check on extension when finding the
location of an extension -->
- [x] #54594 <!-- Switch to Pkg mode prompt immediately and load Pkg in
the background -->
- [x] #54669 <!-- Improve error message in inplace transpose -->
- [x] #54671 <!-- Add boundscheck in bindingkey_eq to avoid OOB access
due to data race -->
- [x] #54672 <!-- make: Fix `sed` command for LLVM libraries with no
symbol versioning -->
- [x] #54624 <!-- more precise aliasing checks for SubArray -->
- [x] #54679 <!-- 🤖 [master] Bump the Distributed stdlib from 6a07d98 to
6c7cdb5 -->
- [x] #54604 <!-- Fix tbaa annotation on union selector bytes inside of
structs -->
- [x] #54690 <!-- Fix assertion/crash when optimizing function with dead
basic block -->
- [x] #54704 <!-- LazyString in reinterpretarray error messages -->
- [x] #54718 <!-- fix prepend StackOverflow issue -->
- [x] #54674 <!-- Reimplement dummy pkg prompt as standard prompt -->
- [x] #54737 <!-- LazyString in interpolated error messages involving
types -->
- [x] #54642 <!-- Document GenericMemory and AtomicMemory -->
- [x] #54713 <!-- make: use `readelf` for LLVM symbol version detection
-->
- [x] #54760 <!-- REPL: improve prompt! async function handler -->
- [x] #54606 <!-- fix double-counting and non-deterministic results in
`summarysize` -->
- [x] #54759 <!-- REPL: Fully populate the dummy Pkg prompt -->
- [x] #54702 <!-- lowering: Recognize argument destructuring inside
macro hygiene -->
- [x] #54678 <!-- Don't let setglobal! implicitly create bindings -->
- [x] #54730 <!-- Fix uuidkey of exts in fast path of `require_stdlib`
-->
- [x] #54765 <!-- Handle no-postdominator case in finalizer pass -->
- [x] #54591 <!-- Don't expose guard pages to malloc_stack API consumers
-->
- [x] #54755 <!-- [TOML] remove Dates hack, replace with explicit usage
-->
- [x] #54721 <!-- add try/catch around scheduler to reset sleep state
-->
- [x] #54631 <!-- Avoid concatenating LazyString in setindex! for
triangular matrices -->
- [x] #54322 <!-- effects: add new `@consistent_overlay` macro -->
- [x] #54785
- [x] #54865
- [x] #54815
- [x] #54795
- [x] #54779
- [x] #54837 

Contains multiple commits, manual intervention needed:
- [ ] #52694 <!-- Reinstate similar for AbstractQ for backward
compatibility -->
- [ ] #54649 <!-- Less restrictive copyto! signature for triangular
matrices -->

Non-merged PRs with backport label:
- [ ] #54779 <!-- make recommendation clearer on manifest version
mismatch -->
- [ ] #54739 <!-- finish implementation of upgradable stdlibs -->
- [ ] #54738 <!-- serialization: fix relocatability bug -->
- [ ] #54574 <!-- Make ScopedValues public -->
- [ ] #54457 <!-- Make `String(::Memory)` copy -->
- [ ] #53957 <!-- tweak how filtering is done for what packages should
be precompiled -->
- [ ] #53452 <!-- RFC: allow Tuple{Union{}}, returning Union{} -->
- [ ] #53286 <!-- Raise an error when using `include_dependency` with
non-existent file or directory -->
- [ ] #51479 <!-- prevent code loading from lookin in the versioned
environment when building Julia -->
@KristofferC KristofferC removed the backport 1.11 Change should be backported to release-1.11 label Jun 25, 2024
KristofferC added a commit that referenced this pull request Aug 13, 2024
Backported PRs:
- [x] #51351 <!-- Remove boxing in pinv -->
- [x] #52678 <!-- Profile: Improve module docstring -->
- [x] #54201 <!-- Fix generic triangular solves with empty matrices -->
- [x] #54605 <!-- Allow libquadmath to also fail as it is not available
on all systems -->
- [x] #54634 <!-- Fix trampoline assembly for build on clang 18 on apple
silicon -->
- [x] #54635 <!-- Aggressive constprop in trevc! to stabilize triangular
eigvec -->
- [x] #54645 <!-- ensure we set the right value to gc_first_tid -->
- [x] #54671 <!-- Add boundscheck in bindingkey_eq to avoid OOB access
due to data race -->
- [x] #54672 <!-- make: Fix `sed` command for LLVM libraries with no
symbol versioning -->
- [x] #54704 <!-- LazyString in reinterpretarray error messages -->
- [x] #54713 <!-- make: use `readelf` for LLVM symbol version detection
-->
- [x] #54781 <!-- [LinearAlgebra] Improve resilience to unknown
libblastrampoline flags -->
- [x] #54837 <!-- Do not add type tag size to the `alloc_typed` lowering
for GC allocations -->
- [x] #54815 <!-- add sticky task warning to `@task` and `schedule` -->
- [x] #55141 <!-- Update the aarch64 devdocs to reflect the current
state of its support -->
- [x] #55178 <!-- Compat for `Base.@nospecializeinfer` -->
- [x] #55197 <!-- compat notice for a[begin] indexing -->
- [x] #55209 <!-- correction to compat notice for a[begin] -->
- [x] #55203 <!-- document mutable struct const fields -->
- [x] #54769 <!-- add missing compat entry to edit -->
- [x] #54791 <!-- Bump libblastrampoline to v5.10.1 -->
- [x] #55070 <!-- LinearAlgebra: LazyString in error messages for
Diagonal/Bidiagonal -->
- [x] #54624 <!-- more precise aliasing checks for SubArray -->
- [x] #54690 <!-- Fix assertion/crash when optimizing function with dead
basic block -->
- [x] #55084 <!-- Use triple quotes in TOML.print when string contains
newline -->


Need manual backport:
- [ ] #52505 <!-- fix alignment of emit_unbox_store copy -->
- [ ] #53373 <!-- fix sysimage-native-code=no option with pkgimages -->
- [ ] #53984 <!-- Profile: fix heap snapshot is valid char check -->
- [ ] #54276 <!-- Fix solve for complex `Hermitian` with non-vanishing
imaginary part on diagonal -->
- [ ] #54669 <!-- Improve error message in inplace transpose -->
- [ ] #54871 <!-- Make warn missed transformations pass optional -->

Contains multiple commits, manual intervention needed:
- [ ] #52854 <!-- Change to streaming out the heap snapshot data -->
- [ ] #53218 <!-- Fix interpreter_exec.jl test -->
- [ ] #53833 <!-- Profile: make heap snapshots viewable in vscode viewer
-->
- [ ] #54303 <!-- LinearAlgebra: improve type-inference in
Symmetric/Hermitian matmul -->
- [ ] #52694 <!-- Reinstate similar for AbstractQ for backward
compatibility -->
- [ ] #54737 <!-- LazyString in interpolated error messages involving
types -->
- [ ] #54738 <!-- serialization: fix relocatability bug -->
- [ ] #55052 <!-- Fix `(l/r)mul!` with `Diagonal`/`Bidiagonal` -->

Non-merged PRs with backport label:
- [ ] #55220 <!-- `isfile_casesensitive` fixes on Windows -->
- [ ] #55169 <!-- `propertynames` for SVD respects private argument -->
- [ ] #55013 <!-- [docs] change docstring to match code -->
- [ ] #51479 <!-- prevent code loading from lookin in the versioned
environment when building Julia -->
- [ ] #50813 <!-- More doctests for Sockets and capitalization fix -->
- [ ] #50157 <!-- improve docs for `@inbounds` and
`Base.@propagate_inbounds` -->
- [ ] #41244 <!-- Fix shell `cd` error when working dir has been deleted
-->
@KristofferC KristofferC removed the backport 1.10 Change should be backported to the 1.10 release label Aug 13, 2024
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