Differences between revisions 31 and 32
Revision 31 as of 2013-10-11 11:40:34
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Editor: TobiasBurnus
Comment: Mention that GCC 4.9 supports OpenMP4
Revision 32 as of 2013-11-28 17:05:16
Size: 5882
Editor: TobiasBurnus
Comment: Update OpenMP 4 status (declare simd is now in 4.9) and refer to the branchs for omp target
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As of GCC 4.2, the compiler implements version 2.5 of the OpenMP specification and as of 4.4 it implements version 3.0 of the OpenMP specification. The OpenMP 3.1 specification is supported since GCC 4.7. GCC 4.9 supports OpenMP 4.0 with the follow exceptions (as of 2013-10-11): The new directives are not support in Fortran, `omp target` will always run on the host and `omp declare simd` will run as non-SIMD version. 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 branches `gomp-4_0-branch` and `openacc-1_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 (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 branches gomp-4_0-branch and openacc-1_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)