sandialabs/qthreads

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Lightweight locality-aware user-level threading runtime.

Stars: 200
Forks: 40
Open beginner issues: 0
Indexed issues: 37
Avg merge: 21h 19m
Merged PRs (30d): 7

Dominant language: C
License: No license data
Last GitHub push: Sep 9, 2026
Latest indexed: Sep 20, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed

Beginner friendly Everything

Open All

37 open issues indexed

Intermittent Illegal Instruction on riscv64 in CI Open

bug medium priority

Difficulty 4/5 3-5 days Newbie friendliness 35/100

sandialabs/qthreads#396 · Opened Aug 28, 2026
Intermittent Hang in Queue Test Open

bug low priority

Difficulty 4/5 3-5 days Newbie friendliness 35/100

sandialabs/qthreads#392 · Opened May 29, 2026
Intermittent Assertion Failure in qt_loop_simple Open

bug medium priority

Difficulty 4/5 3-5 days Newbie friendliness 38/100

sandialabs/qthreads#390 · Opened May 11, 2026
Intermittent Crash in qthread_timer_wait Open

bug low priority

Difficulty 4/5 3-5 days Newbie friendliness 45/100

sandialabs/qthreads#388 · 2 comments · Opened May 7, 2026
Intermittent Data Race in Queue Open

bug medium priority tsan

Difficulty 4/5 3-5 days Newbie friendliness 45/100

sandialabs/qthreads#383 · Opened May 4, 2026
cxx_qt_loop_balance Fails With Latest nvc Open

bug medium priority performance

Difficulty 4/5 3-5 days Newbie friendliness 45/100

sandialabs/qthreads#377 · 8 comments · Opened Jan 27, 2026
Fast Context Swap Broken On ppc64le Open

bug low priority

Difficulty 5/5 Over a week Newbie friendliness 25/100

sandialabs/qthreads#357 · Opened Apr 7, 2025
Coalescing Syscalls? Open

enhancement low priority

Difficulty 5/5 Over a week Newbie friendliness 20/100

sandialabs/qthreads#329 · Opened Jan 13, 2025
Tail Recursion? Open

enhancement low priority

Difficulty 5/5 Over a week Newbie friendliness 25/100

sandialabs/qthreads#328 · Opened Jan 13, 2025
128-bit syncvars? Open

enhancement low priority

Difficulty 5/5 Over a week Newbie friendliness 25/100

sandialabs/qthreads#327 · Opened Jan 13, 2025
Support For Non-Suspending Tasks Open

enhancement medium priority

Difficulty 5/5 Over a week Newbie friendliness 25/100

sandialabs/qthreads#313 · Opened Nov 2, 2024
Benchmark Testing Open

enhancement medium priority

Difficulty 5/5 Over a week Newbie friendliness 25/100

sandialabs/qthreads#312 · Opened Oct 24, 2024
Benchmarking Script Open

enhancement medium priority

Difficulty 5/5 Over a week Newbie friendliness 25/100

sandialabs/qthreads#311 · Opened Oct 24, 2024
Benchmark Bitrot Open

bug medium priority

Difficulty 4/5 3-5 days Newbie friendliness 35/100

sandialabs/qthreads#310 · Opened Oct 24, 2024
Support for Stackless Tasks Open

enhancement medium priority

Difficulty 5/5 Over a week Newbie friendliness 25/100

sandialabs/qthreads#308 · Opened Oct 22, 2024
Unnecessary Context Swaps in Main Loop Open

enhancement high priority

Difficulty 5/5 Over a week Newbie friendliness 25/100

sandialabs/qthreads#307 · Opened Oct 21, 2024
Tsan Dependencies Not Getting Traced Through Threadqueues Open

enhancement medium priority

Difficulty 5/5 Over a week Newbie friendliness 20/100

sandialabs/qthreads#303 · 1 comment · Opened Oct 18, 2024
Expand Cacheline Size Detection Logic Open

enhancement medium priority

Difficulty 5/5 Over a week Newbie friendliness 25/100

sandialabs/qthreads#285 · 1 comment · Opened Sep 23, 2024
Check Fences For Stolen Qthreads Open

bug medium priority

Difficulty 4/5 3-5 days Newbie friendliness 30/100

sandialabs/qthreads#265 · 1 comment · Opened Aug 7, 2024
Test With More Threads Open

enhancement medium priority

Difficulty 3/5 1-2 days Newbie friendliness 42/100

sandialabs/qthreads#239 · Opened Feb 12, 2024
Race Conditions in `qutil` Open

bug medium priority tsan

Difficulty 4/5 3-5 days Newbie friendliness 35/100

sandialabs/qthreads#238 · 2 comments · Opened Feb 12, 2024
Remove `QTHREAD_CASLOCK` Macros Open

enhancement medium priority

Difficulty 3/5 1-2 days Newbie friendliness 38/100

sandialabs/qthreads#228 · Opened Feb 2, 2024
Enable Lockfree FEB Implementation By Default Open

enhancement medium priority

Difficulty 5/5 Over a week Newbie friendliness 25/100

sandialabs/qthreads#218 · Opened Jan 18, 2024
Check That Atomics Are Trivially Initializable In Configure Open

Difficulty 3/5 1-2 days Newbie friendliness 48/100

sandialabs/qthreads#214 · Opened Dec 7, 2023
Yield Outside A Qthread Needs Error Open

enhancement medium priority

Difficulty 4/5 3-5 days Newbie friendliness 35/100

sandialabs/qthreads#183 · Opened Nov 14, 2023
Reserved Identifiers Used In Header Guards Open

bug low priority

Difficulty 4/5 3-5 days Newbie friendliness 45/100

sandialabs/qthreads#174 · Opened Nov 6, 2023
hwloc Cache Detection Logic Errors Open

bug high priority

Difficulty 3/5 1-2 days Newbie friendliness 45/100

sandialabs/qthreads#173 · Opened Nov 6, 2023
`make distclean` Misses Some Files Open

bug low priority

Difficulty 4/5 3-5 days Newbie friendliness 35/100

sandialabs/qthreads#143 · 2 comments · Opened Oct 18, 2023
Support different yielding policies Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

sandialabs/qthreads#140 · 1 comment · Opened Sep 8, 2023
Automate release tarball creation Open

1.18 enhancement

sandialabs/qthreads#103 · 3 comments · 1 reaction · 1 assignee · Opened Dec 15, 2021
Call a function on each hardware thread Open

enhancement medium priority

Difficulty 5/5 Over a week Newbie friendliness 25/100

sandialabs/qthreads#52 · 16 comments · Opened Mar 26, 2017
Improve performance of "thread-ring" benchmark Open

enhancement low priority

sandialabs/qthreads#48 · 14 comments · 1 assignee · Opened Dec 2, 2016
Improve "vector" task spawn performance Open

enhancement medium priority

sandialabs/qthreads#47 · 8 comments · 1 assignee · Opened Dec 2, 2016
Speed up build times Open

enhancement low priority

sandialabs/qthreads#44 · 1 comment · 1 assignee · Opened Dec 1, 2016
Deschedule sleeping qthreads Open

enhancement low priority

sandialabs/qthreads#43 · 1 comment · 1 assignee · Opened Dec 1, 2016
Tune distrib scheduler performance Open

enhancement high priority

sandialabs/qthreads#39 · 5 comments · 1 assignee · Opened Dec 1, 2016
Chapel Wish List Open

enhancement

sandialabs/qthreads#36 · 1 assignee · Opened Dec 1, 2016

sandialabs/qthreads

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