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Wed, 12 Feb 2025 13:48:40 -0800 (PST) Received: from pondscum.hsd1.co.comcast.net ([2601:281:d901:97c0::af71]) by smtp.gmail.com with ESMTPSA id 8926c6da1cb9f-4ecf4326cb5sm1972856173.98.2025.02.12.13.48.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Feb 2025 13:48:39 -0800 (PST) From: Sandra Loosemore To: gcc-patches@gcc.gnu.org Subject: [WWWDOCS, COMMITTED] gcc-15: Update OpenMP release notes Date: Wed, 12 Feb 2025 14:48:34 -0700 Message-Id: <20250212214834.2216445-1-sloosemore@baylibre.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Spam-Status: No, score=-12.3 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, GIT_PATCH_0, KAM_SHORT, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces~patchwork=sourceware.org@gcc.gnu.org --- htdocs/gcc-15/changes.html | 80 ++++++++++++++++++++++++-------------- 1 file changed, 50 insertions(+), 30 deletions(-) diff --git a/htdocs/gcc-15/changes.html b/htdocs/gcc-15/changes.html index e273693a..d7919379 100644 --- a/htdocs/gcc-15/changes.html +++ b/htdocs/gcc-15/changes.html @@ -65,37 +65,57 @@ a work-in-progress.

New Languages and Language specific improvements

+

OpenMP

    -
  • OpenMP -
      -
    • - Support for unified-shared memory has been added for some AMD and Nvidia - GPU devices, enabled when using the unified_shared_memory - clause to the requires directive. For details, - see the offload-target specifics section in the - GNU Offloading and Multi Processing Runtime Library Manual. - GCC added ompx_gnu_pinned_mem_alloc as predefined - allocator. On Nvidia - GPUs, writing to the terminal from OpenMP target regions (but not from - OpenACC compute regions) is now also supported in Fortran; in C/C++ and - on AMD GPUs this was already supported before with both OpenMP and OpenACC. - Constructors and destructors on the device side for declare target - static aggregates are now handled. -
      • -
    • - OpenMP 5.1: The unroll and tile - loop-transformation constructs are now supported. -
      • -
    • - OpenMP 6.0: The get_device_from_uid and - omp_get_uid_from_device API routines have been added. -
      • -
    +
  • + Support for unified-shared memory has been added for some AMD and Nvidia + GPU devices, enabled when using the unified_shared_memory + clause to the requires directive. + The OpenMP 6.0 self_maps clause is also now supported. + For details, + see the offload-target specifics section in the + GNU Offloading and Multi Processing Runtime Library Manual. +
    • +
  • + GCC added ompx_gnu_pinned_mem_alloc as a predefined + allocator. +
    • +
  • + In C and Fortran, the allocate directive now supports + static variables; stack variables were previously supported in + those languages. C++ support is not available yet. +
    • +
  • + Offloading improvements: + On Nvidia + GPUs, writing to the terminal from OpenMP target regions (but not from + OpenACC compute regions) is now also supported in Fortran; in C/C++ and + on AMD GPUs this was already supported before with both OpenMP and OpenACC. + Constructors and destructors on the device side for + declare target static aggregates are now handled. +
    • +
  • + The OpenMP 5.1 unroll and tile + loop-transforming constructs are now supported. +
    • +
  • OpenMP 5.0 metadirectives are now supported, as are OpenMP 5.1 dynamic + selectors in both metadirective and + declare variant (the latter with some restrictions). +
    • +
  • + The OpenMP 5.1 dispatch construct has been implemented + with support for the adjust_args clause to the + declare variant directive. +
    • +
  • + OpenMP 6.0: The get_device_from_uid and + omp_get_uid_from_device API routines have been added. +