OpenMP* WORKSHARE 现在可与英特尔® Fortran 编译器 15.0 并行

英特尔® Fortran 编译器 15.0 现可为包含阵列分配的 OpenMP WORKSHARE 和 PARALLEL WORKSHARE 结构的指定实例生成多线程代码。  很显然,它们是使用 OpenMP SINGLE 结构进行部署,这表示仅可生成单线程代码。


OMP WORKSHARE 结构的数据块内的语句并非总是生成多线程代码。 一些语句进行并行化;另一些语句不进行并行化,而在 OMP SINGLE 结构内按顺序执行,以保持 WORKSHARE 的语义正确。




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  • Apple OS X*
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  • Microsoft Windows* (XP, Vista, 7)
  • Microsoft Windows* 8.x
  • Server
  • Fortran
  • Avanzato
  • OpenMP*
  • 在Intel® MIC多核架构上使用OpenMP*库的编程及调优实践

        本文将主要介绍在Intel® MIC多核架构上运行及优化OpenMP*多线程程序的相关技术,且将围绕offload及native两种运行时执行环境展开详解。





  • C/C++
  • OpenMP*
  • Architettura Intel® Many Integrated Core
  • mfense question.

    Want to know in X64, does mfence  instruction flush the CPU cache globally, meaning :-

    If CPU0 does mfence, then does it invalidate its cacheline which contain the shared memory location, which is updated at CPU1. And it also results in CPU1 flush its cache containing that shared memory location ?

    In other words, if CPU0 does mfence, is it going to get the correct shared memory content which is updated at CPU1 ? Or CPU1 which has updated the shared memory, need to do mfence ? 

    Thanks a lot


    New code release

    We are excited to announce the next release of the Intel® OpenMP* Runtime Library at This release aligns with Intel® Parallel Studio XE 2015.



    New Features

    • Contribution from ScaleMP: stack padding.
    • Redesign of wait and release code; performance improvements.

    Bug Fixes

    Compile with Open64?

    Hi everybody,


    I was wondering if I could compile the library with another compiler, let's say Open64 compiler. 

    As it's been documented, it can be compiled with gcc, clang, icc.

    Is the code potentially able to be compiled with Open64 or not? If it is, can you help me out on 

    where I should change the code in order to be able to build binary codes for new compiler (Open64).



    Best Regards,



    how #pragma statements are expanded?


    I was working with your library (Intel OpenMP Runtime Library) and I was wondering how the "#pragma" directives in the code are expanded. What I mean is that since you have mentioned in your Reference document, the pragma directives are expanded to some line of codes? Is that correct? If so, where can I look into the code and find it?

    Let me give your an example: Consider below line of C code,

    #pragma omp parallel

    What will be the equivalent C code in your framework that would be replaced with above line of code? And, where can I find it?


    Iscriversi a OpenMP*