Issues

• C++20 Modules CI fails since #7723: background thread helpers are not exported

  TheHPXProject/hpx#7758 · Filter by author v4xsh opened on Oct 17, 2026

• Small defects in the handling of hpx.thread_queue parameters

  category: schedulerdifficulty: easytype: defect
  TheHPXProject/hpx#7748 · Filter by author hkaiser opened on Oct 16, 2026

• hpx.max_background_threads raised for one thread pool carries over to all later pools

  category: threadmanagerdifficulty: easytype: defect
  TheHPXProject/hpx#7747 · Filter by author hkaiser opened on Oct 16, 2026

• local_workrequesting_scheduler loses fast_idle_mode, so idle workers send steal requests only after max_idle_loop_count / 2 iterations

  category: schedulertype: defect
  TheHPXProject/hpx#7746 · Filter by author hkaiser opened on Oct 16, 2026

• add/remove/update_scheduler_mode bypass the scheduler specific set_scheduler_mode overrides

  category: schedulerdifficulty: mediumtype: defect
  TheHPXProject/hpx#7745 · Filter by author hkaiser opened on Oct 16, 2026
  1

• --hpx:numa-sensitive: bare option means "not sensitive", values 1 and 2 behave the same, is_scheduler_numa_sensitive() is broken

  category: runtimecategory: schedulertype: defect
  TheHPXProject/hpx#7744 · Filter by author hkaiser opened on Oct 16, 2026
  2

• Two bugs in the command line handling of --hpx:queuing and --hpx:high-priority-threads

  category: initdifficulty: easytype: defect
  TheHPXProject/hpx#7743 · Filter by author hkaiser opened on Oct 16, 2026

• background_scheduler::set_scheduler_mode sets almost all scheduler mode bits

  category: schedulerdifficulty: easytype: defect
  TheHPXProject/hpx#7742 · Filter by author hkaiser opened on Oct 16, 2026

• Intermittent AGAS bootstrap timeout in distributed MPI tests (partitioned_vector_merge_regressions)

  category: inittype: compatibility issue
  TheHPXProject/hpx#7734 · Filter by author hkaiser opened on Oct 15, 2026
  2

• Intermittent hang / crash with HPX_COROUTINES_WITH_THREAD_SCHEDULE_HINT_RUNS_AS_CHILD=ON when children are both stolen and run inline by their waiting parent

  category: corecategory: threadmanagertype: compatibility issue
  TheHPXProject/hpx#7724 · Filter by author hkaiser opened on Oct 14, 2026
  5

• invoke_directly returns unknown for a finished stackful child, so execute_thread never reports success

  category: threadmanagertype: compatibility issuetype: enhancement
  TheHPXProject/hpx#7713 · Filter by author v4xsh opened on Oct 10, 2026

• Preserve assertion behavior when HPX_WITH_CONTRACTS=OFF

  category: coretype: compatibility issuetype: enhancement
  TheHPXProject/hpx#7712 · Filter by author coderabbitai opened on Oct 10, 2026
  1

  

• Stackless task with run_as_child crashes when its parent runs it directly

  category: corecategory: threadmanagertype: defect
  TheHPXProject/hpx#7708 · Filter by author v4xsh opened on Oct 9, 2026
  2

• Annotate synchronization primitives and collectives with contracts

  type: enhancementtype: feature request
  TheHPXProject/hpx#7694 · Filter by author RohanOnKeys opened on Oct 8, 2026
  6

• Linux CI (Release, C++20 Modules): clang-22 segfaults (exit 139) on most PRs since early October

  category: modulescompiler: clangtype: compatibility issue
  TheHPXProject/hpx#7671 · Filter by author RohanOnKeys opened on Oct 3, 2026 · 2.0.0
  11

• Update the master branch to be compilable against stdexec master

  category: CIcategory: CMaketype: compatibility issuetype: enhancement
  TheHPXProject/hpx#7645 · Filter by author hkaiser opened on Sep 29, 2026

• 32 bit Windows: C4244 narrowing conversions reported by the new 32 bit CI job

  compiler: msvctype: cleanuptype: compatibility issue
  TheHPXProject/hpx#7576 · Filter by author Abhishek9639 opened on Sep 16, 2026
  5

• Preparing V2.0.0

  category: documentationcategory: generaltype: cleanup
  Task

  TheHPXProject/hpx#7547 · Filter by author Abhishek9639 opened on Sep 13, 2026 · 2.0.0
  10

• [Build System] UX Gap: -Wl,-wrap=main does not propagate to non-CMake consumers

  category: CMaketype: compatibility issue
  TheHPXProject/hpx#7071 · Filter by author shivansh023023 opened on Mar 20, 2026 · 2.0.0
  3

• Hpx Install problems / examples won't compile

  category: documentationcategory: examples
  TheHPXProject/hpx#7019 · Filter by author heisarun opened on Mar 15, 2026
  18

• Add exception handling in AGAS namespace server iterate methods

  category: AGAStype: feature request
  TheHPXProject/hpx#6895 · Filter by author GitMasterJatin opened on Feb 11, 2026
  10

• v1.10.0: tests fail on ppc64le & s390x

  platform: s390xtype: defect
  TheHPXProject/hpx#6765 · Filter by author junghans opened on Aug 13, 2025
  6

• flecsi: New hangs with HPX 1.11.0

  project: FLeCSItype: defect
  TheHPXProject/hpx#6743 · Filter by author rbberger opened on Jul 16, 2025
  4

• Preparing V1.11.1

  type: cleanup
  TheHPXProject/hpx#6742 · Filter by author hkaiser opened on Jul 15, 2025 · 1.11.1
  6

• HPX headers in device builds

  platform: CUDAplatform: HIPplatform: ROCmproject: FLeCSItype: defect
  TheHPXProject/hpx#6740 · Filter by author opensdh opened on Jul 15, 2025
  7