Welcome to the home of GOMP

The GOMP project is developing an implementation of OpenMP for the C, C++, and Fortran 95 compilers in the GNU Compiler Collection. As part of the GNU Project, GOMP will simplify parallel programming for all GNU system variants. This effort operates in an open environment to attract developers and ensure applicability across multiple architectures and applications.

Traditionally, programmers have used architecture-specific methods to effectively program tightly-parallelized computers — high band-width clusters, SMP machines, or multi-core processors. Parallel programming has thus been a time-consuming and arcane task.

OpenMP offers a simple way of exploiting parallelism without interfering with algorithm design; an OpenMP program compiles and operates correctly in both parallel and serial execution environments. Using OpenMP's directive-based parallelism also simplifies the act of converting existing serial code to efficient parallel code.

Project goal

To remain relevant, free software development tools must support emerging technologies. By implementing OpenMP, GOMP will provide a simplified syntax tools for creating software targeted at parallel architectures. OpenMP's platform-neutral syntax meshes well with the portability goals of GCC and other GNU projects.

The GOMP release will include a support library, libgomp, and extensions to target language parsers. The initial focus is on implementing the basic syntax of GOMP in the C, C++, and Fortran 95 frontends, to be followed by specific implementations for different platforms. A long-term goal is the generation of efficient and small code for OpenMP applications.

Contributing

We encourage everyone to contribute changes and help test GOMP. GOMP is currently developed on a separate GCC branch (gomp-20050608-branch, based on mainline), and will be integrated into GCC after its efficacy is proven. We provide read access to our development sources for everybody with anonymous SVN.

Reporting Bugs

Bugs in GOMP should be reported via bugzilla. In all cases, please add "openmp" to the keywords field in the bug report.

Status

November 18, 2005

The branch is ready to be merged into mainline. All three front ends are functional and there should not be many corners of the standard left to implement. There are 5 main modules to merge into mainline: (1) runtime library, (2) code generation, (3) C front end, (4) C++ front end, and, (5) Fortran front end.

October 20, 2005

The runtime library is functionally complete. The syntax parsers for C, C++ and Fortran are complete, though there are still dusty corners with respect to semantic translation to be resolved. Adventurous users who don't mind the compiler crashing on every other source file are encouraged to begin filing bugs.

Please send FSF & GNU inquiries & questions to gnu@gnu.org. There are also other ways to contact the FSF.

These pages are maintained by the GCC team.

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Last modified 2006-06-21