Differences between revisions 33 and 34
Revision 33 as of 2014-03-08 17:30:10
Size: 5938
Editor: TobiasBurnus
Comment: Link to OpenMP 4.0 examples, remove OpenACC reference as gomp-4_0-branch seems to be consolidated enough that the OpenACC is misleading for OpenMP
Revision 34 as of 2014-06-18 08:27:46
Size: 5991
Editor: TobiasBurnus
Comment: Update OpenMP implementation status for GCC 4.10
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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 with the follow exceptions (as of 2013-11-28): The new 4.0 directives are not yet supported in Fortran and `omp target` will always run on the host. (For `omp target` see also on-going work in the `gomp-4_0-branch`.) 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 with the follow exceptions: The new 4.0 directives are not yet supported in Fortran and `omp target` will always run on the host. GCC 4.10 added OpenMP 4.0 support to gfortran. (For actual offloading and for OpenACC see also the on-going work in the `gomp-4_0-branch`.)

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 with the follow exceptions: The new 4.0 directives are not yet supported in Fortran and omp target will always run on the host. GCC 4.10 added OpenMP 4.0 support to gfortran. (For actual offloading and for OpenACC see also the on-going work in the gomp-4_0-branch.)

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 2015-01-29 08:24:51 by tschwinge)