Intel® oneAPI Threading Building Blocks Release Notes

Publicado:10/28/2019   Última actualización:09/03/2020

Where to Find the Release

Intel® oneAPI Threading Building Blocks(Beta)

New in 2021.1-beta09 Release

New Features

  • Added the terminate_on_exception property for global_control to prevent exceptions from the oneTBB library and terminate the library instead of throwing an exception.
  • Reworked error handling for thread creation API to throw an exception to report an error. Inspired by Andrey Semashev (https://github.com/oneapi-src/oneTBB/issues/255).
  • Enabled Intel® Inspector support in the parallel algorithms and the flow graph.
  • oneTBB libraries added to the linker command line on Microsoft Windows* systems automatically via #pragma comment linker directives.

Preview Features

  • Introduced the task_scheduler_handler class as a replacement for blocking terminate extension of the task_scheduler_init class.

Known Limitations

  • On Linux, if oneAPI Threading Building Blocks (oneTBB) or Threading Building Blocks (TBB) has been installed to a system folder like /usr/lib64, the application may fail to link due to the linker search order for libraries. Use the -L linker option to specify the correct location of oneTBB libraries. This issue does not affect program execution.

Bugs Fixed

  • Fixed a possible crash in concurrent_vector when multiple threads push elements to the empty container.

New in 2021.1-beta08 Release

Changes affecting backward compatibility

New Features

  • Upgraded the oneTBB Python module from Python2 to Python3. Inspired by Eisuke Kawashima (https://github.com/oneapi-src/oneTBB/pull/240).
  • Concurrent ordered containers, flow graph API to support relative priorities for functional nodes and resumable tasks are now fully supported features.
  • Extended task_arena interface was implemented to specify priority of the arena.
  • NUMA-extensions in task_arena was introduced in this release.

Known Limitations

  • On Linux, if oneAPI Threading Building Blocks (oneTBB) or Threading Building Blocks (TBB) has been installed to a system folder like /usr/lib64, the application may fail to link due to the linker search order for libraries. Use the -L linker option to specify the correct location of oneTBB libraries. This issue does not affect program execution.

Bugs Fixed

New in 2021.1-beta07 Release

  • There are no New Features or Bug fixes in this Release.

New in 2021.1-beta06 Release

  • Added modulefiles for setting up the user's development environment.

New in 2021.1-beta05 Release

  • There are no New Features or Bug fixes in this Release.

New in 2021.1-beta04 Release

  • There are no New Features or Bug fixes in this Release.

New in 2021.1-beta03 Release

  • There are no New Features or Bug fixes in this Release.

New in 2021.1-beta02 Release

New Features

  • To improve usability and align with C++ standards, some interfaces that were available in older releases are no longer available in oneAPI Threading Building Blocks (oneTBB). For a complete list of these features and instructions on how to map them to new features, see TBB Revamp: Background, Changes, and Modernization.
  • Compile-time notifications warn users about legacy headers that will be removed in future releases. For instance, "TBB error: tbb/reader_writer_lock.h is a legacy header which will be removed in a future release. For details, please see the Deprecated Features appendix in the TBB reference manual.

Bug Fixed

  • Fixed std::tuple detection with some versions of Clang on Windows

 

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