ICC / ICPC Vectorization problems: routine skipped: no vectorization candidates

Om Sachan (Intel)
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April 6, 2009 1:50 AM PDT
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#4 Reply to #3
Quoting - Igor Levicki

That message usually means that your code really cannot be vectorized -- having a loop is not a guarantee that the compiler will be able to vectorize it. For more detailed vectorization diagnostics use -Qvec_report:2 or -Qvec_report:3. You might also consider version 11 of the compiler which should be able to vectorize more code than version 10.1.

You may learn more on "Requirements for loop vectorization" in article http://software.intel.com/en-us/articles/requirements-for-vectorizable-loops/.

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