Differences between revisions 37 and 38
Revision 37 as of 2015-01-29 08:24:51
Size: 5828
Editor: tschwinge
Comment: libgomp: Now known as the GNU Offloading and Multi Processing Runtime Library.
Revision 38 as of 2020-01-21 16:18:57
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Editor: TobiasBurnus
Comment: Update a bit for newer than GCC 5 :-)
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As of GCC 4.2, the compiler implements version 2.5 of the OpenMP specification, as of 4.4 it implements version 3.0 and since GCC 4.7 it supports the OpenMP 3.1 specification. GCC 4.9 supports OpenMP 4.0 for C/C++, GCC 4.9.1 also for Fortran. GCC 5 adds support for [[Offloading]]. As of GCC 4.2, the compiler implements version 2.5 of the OpenMP specification, as of 4.4 it implements version 3.0 and since GCC 4.7 it supports the OpenMP 3.1 specification. GCC 4.9 supports OpenMP 4.0 for C/C++, GCC 4.9.1 also for Fortran. GCC 5 adds support for [[Offloading]]. OpenMP 4.5 is supported for C/C++ since GCC 6 and since GCC 7 for Fortran (with omissions, largest missing item is structure element mapping). Since GCC 9, there is initial OpenMP 5 support (essentially C/C++, only).
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 * [[http://www.openmp.org/mp-documents/OpenMP4.0.0.pdf|OpenMP v4.0 specification]] (July2013) (Official [[http://openmp.org/mp-documents/OpenMP4.0.0.Examples.pdf|OpenMP 4.0 Examples]], [[http://openmp.org/forum/viewforum.php?f=12|OpenMP 4.0 API forum]])
 * [[https://www.openmp.org/wp-content/uploads/openmp-4.5.pdf|OpenMP 4.5 specification]] ([[https://www.openmp.org/spec-html/5.0/openmp.html|as HTML]])
 * [[https://www.openmp.org/wp-content/uploads/OpenMP-API-Specification-5.0.pdf|OpenMP 5 specification]] ([[https://www.openmp.org/spec-html/5.0/openmp.html|as HTML]])
 * [[https://www.openmp.org/wp-content/uploads/openmp-TR8.pdf|OpenMP 5.1 draft (= Technical Report 8)]]

OpenMP

This page contains information on GCC's implementation of the OpenMP specification and related functionality like the auto parallelizer (-ftree-parallelize-loops).

As of GCC 4.2, the compiler implements version 2.5 of the OpenMP specification, as of 4.4 it implements version 3.0 and since GCC 4.7 it supports the OpenMP 3.1 specification. GCC 4.9 supports OpenMP 4.0 for C/C++, GCC 4.9.1 also for Fortran. GCC 5 adds support for Offloading. OpenMP 4.5 is supported for C/C++ since GCC 6 and since GCC 7 for Fortran (with omissions, largest missing item is structure element mapping). Since GCC 9, there is initial OpenMP 5 support (essentially C/C++, only).

OpenMP Documentation

Automatic Parallelization

(-ftree-parallelize-loops)

  • Streamization

Test Suites and Benchmarks

TODO List

Feel free to add new items to this list as you run into issues or features that would be interesting to add. Send mail to the list and/or the GCC OpenMP maintainers if any item in this list sounds interesting but is hard to understand.

None: openmp (last edited 2020-11-15 09:05:43 by TobiasBurnus)