[LLVMdev] OpenMP 3.1 Support Implementation In Clang Is Available

[Das, Dibyendu]

Thanks a lot Andrey (and team) for finally getting this done.

-Dibyendu
AMD India

From: Andrey Bokhanko [mailto:andreybokhanko at gmail.com]
Sent: Tuesday, August 27, 2013 07:20 AM
To: LLVM Developers Mailing List <llvmdev at cs.uiuc.edu>
Subject: [LLVMdev] OpenMP 3.1 Support Implementation In Clang Is Available

[This is a cross-posting of a message posted in cfe-dev mailing list (http://lists.cs.uiuc.edu/pipermail/cfe-dev/2013-August/031595.html); sorry for double-posting.]

All,

This is to announce availability of a full OpenMP 3.1 support implementation in Clang compiler.

The project is hosted there: http://clang-omp.github.com/

It is based on clang 3.3 (and will be updated as new clang/llvm releases become available); also, we plan to eventually contribute everything to the clang trunk (initial patches have already been committed).

This implementation supports 3.1 version of OpenMP standard in full; it passes all OpenMP tests we tried with it so far (this includes OpenMP Validation Suite from OpenUH Research Compiler, SPEC OMP2012 and internal Intel test suites). Performance-wise, it demonstrates similar gains and scalability as other compilers with OpenMP support. (Sorry, I can’t be more specific here, as properly reporting performance results is a precise and laborious process. You are welcome to try clang compiler with OpenMP support on your own OpenMP programs, awe performance gains and share excitement with the community. :-))

The project was started by Mahesha HS (then at AMD), who created initial patch. After that, it was carried out by several Intel engineers; Alexey Bataev did most of the coding. Hal Finkel, Dmitry Gribenko and Doug Gregor contributed a lot with code reviews.

OpenMP in an evolving standard; thus, there is always something still left to be done, and your contributions (of any kind -- patches, code reviews, testing, bug reports) are very much welcome!

Yours,
Andrey Bokhanko
==============
Software Engineer
Intel

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