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43 lines
3.1 KiB
Markdown
43 lines
3.1 KiB
Markdown
<!--
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******************************************************************************
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*******************************************************************************/-->
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# Release Notes <!-- omit in toc -->
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This document contains changes of oneTBB compared to the last release.
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## Table of Contents <!-- omit in toc -->
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- [Known Limitations](#known-limitations)
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- [Fixed Issues](#fixed-issues)
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## :rotating_light: Known Limitations
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- The ``oneapi::tbb::info`` namespace interfaces might unexpectedly change the process affinity mask on Windows* OS systems (see https://github.com/open-mpi/hwloc/issues/366 for details) when using hwloc version lower than 2.5.
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- Using a hwloc version other than 1.11, 2.0, or 2.5 may cause an undefined behavior on Windows OS. See https://github.com/open-mpi/hwloc/issues/477 for details.
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- The NUMA topology may be detected incorrectly on Windows* OS machines where the number of NUMA node threads exceeds the size of 1 processor group.
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- On Windows OS on ARM64*, when compiling an application using oneTBB with the Microsoft* Compiler, the compiler issues a warning C4324 that a structure was padded due to the alignment specifier. Consider suppressing the warning by specifying /wd4324 to the compiler command line.
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- C++ exception handling mechanism on Windows* OS on ARM64* might corrupt memory if an exception is thrown from any oneTBB parallel algorithm (see Windows* OS on ARM64* compiler issue: https://developercommunity.visualstudio.com/t/ARM64-incorrect-stack-unwinding-for-alig/1544293.
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- When CPU resource coordination is enabled, tasks from a lower-priority ``task_arena`` might be executed before tasks from a higher-priority ``task_arena``.
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> **_NOTE:_** To see known limitations that impact all versions of oneTBB, refer to [oneTBB Documentation](https://oneapi-src.github.io/oneTBB/main/intro/limitations.html).
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## :hammer: Fixed Issues
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- Fixed ``parallel_for_each`` algorithm behavior for iterators defining ``iterator_concept`` trait instead of ``iterator_category``.
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- Fixed the redefinition issue for ``std::min`` and ``std::max`` on Windows* OS ([GitHub* #832](https://github.com/oneapi-src/oneTBB/issues/832)).
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- Fixed the incorrect binary search order in ``TBBConfig.cmake``.
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- Enabled the oneTBB library search using the pkg-config tool in Conda packages.
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## :octocat: Open-source Contributions Integrated
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- Fixed the compiler warning for missing virtual destructor. Contributed by Elias Engelbert Plank (https://github.com/oneapi-src/oneTBB/pull/1215).
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