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    October 10, 2007

Debugging OpenMP code

Guest Author

The compiler flag -xopenmp enables the recognition of OpenMP directives. As a side -effect it also raises the optimisation level to -xO3. If you're trying to debug the code, then you'll not want the optimisation level raised then you can use the option -xopenmp=noopt which enables the recognition of OpenMP directives but does not increase the optimisation level.

It's also worth compiling with the flags -xvpara and -xloopinfo which report parallelisation information.

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Comments ( 1 )
  • ro Wednesday, October 10, 2007

    learning....


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