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OmpSs-2 2025.06

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@narru19 narru19 released this 06 Jun 14:38
2025.06
172fff1

Version 2025.06, Fri Jun 6, 2025

The OmpSs-2 2025.06 release adds compatibility with ALPI v1.2 across Task-Aware libraries and runtimes, expands device support via Nanos6 and LLVM/Clang, introduces code coverage in nOS-V, and features several updates to Task-Aware libraries such as TASYCL, TACUDA, and TAMPI. It also introduces several bug fixes and improvements to the OmpSs-2 clang parser, several APIs from nOS-V, and instrumentation across libraries.

Nanos6

  • Add compatibility with ALPI version 1.2.
  • Add support for the grid clause on CUDA tasks.
  • Weaken DLB test requirements (partial drop of tests).

nOS-V

  • Extended hwinfo API with new functionalities
  • Updated compatibility to support ALPI v1.2
  • Integrated code coverage
  • Fixed a TLS-related bug when nesting attaches via fork()
  • Fixed synchronization issues involving nosv_cond mutexes
  • Fixed memory consistency issues on certain architectures related to barriers in complete_callbacks
  • Reduced the number of instrumentation events triggered by schedpoints and yields
  • Improved detection logic and internal representation of hardware information
  • Fixed an instrumentation bug where physical CPU IDs were incorrectly emitted instead of logical IDs, leading to emulator failures

NODES

  • No relevant changes compared to the previous release

LLVM/OpenMP (libompv)

  • New, more refined implementation of the passive wait policy in libompv (OMP_WAIT_POLICY=passive)
  • Add a libompvtarget, equivalent to libomptarget but through libompv
  • Several bugfixes in the libompv implementation of free-agents

LLVM/Clang

  • Preliminary support for combining OmpSs-2 with OpenMP offload
  • Added suport for the grid clause for devices in OmpSs-2
  • Several bugfixes in the OmpSs-2 clang parser

Ovni

  • Add support OpenMP label and task ID views.
  • Add support for nOS-V non-blocking scheduler server events (VSN and VSn).
  • Add OpenMP simple breakdown view.
  • Add bench6 package to run full mini-apps for tests.

Task-Aware Libraries

  • Add compatibility with ALPI v1.2 to multiple Task-Aware libraries.
  • (TASYCL) Accept Adaptive CPP targets in the configure script.
  • (TASYCL) Expand the create queues API to accept combinations of SYCL device selectors, async exception handlers.
  • (TASYCL) Expand the API to allow executing functions on all TASYCL queues.
  • (TAMPI) Rework the polling mechanism through ALPI's new suspend feature
  • (TAMPI) Generate a PKGCONFIG file on installation
  • (TAMPI) Allow specifying the maximum number of CPUs of the system while configuring TAMPI
  • (TAMPI) Improve the logging of tests
  • (TAMPI) Fixed passing of lambdas in some boost functions to fix compatibility with v1.87.9
  • (TAMPI) Removed cpubind from tests to avoid unexpected behavior depending on SLURM configuration
  • (TACUDA) Allow multiple streams per CPU through the use of the tacudaCreateStreams parameter
  • (TACUDA) Preallocate cudaEvent_t objects to reduce internal CUDA library contention
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