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omp workshare vs omp do

Ralf
Beginner
‎08-23-2011 07:36 PM
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Hi there,
I'm just starting with OpenMP and have a question concerning array operations:
can the 'omp workshare' construct be used in ifort (12.0.4.196), how does it compare to do-loops? What is recommended?
Cheers
-Ralf
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Steven_L_Intel1
Employee
‎08-24-2011 07:59 AM
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I don't recommend that you use OMP WORKSHARE for this purpose, as the compiler currently treats it as SINGLE.
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TimP
Honored Contributor III
‎08-24-2011 08:03 AM
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workshare has been nominally implemented for some time in ifort. This doesn't mean it is the best way to accomplish all of the tasks for which it has been advocated. To give only one example, the auto-parallelization of MATMUL by automatic MKL substitution is more likely to prove effective than the workshare parallelization. This is far too wide a topic to generalize.
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