Question about CEAN

Sergey Matvienko

ter, 13/12/2011 - 01:42

Hello, i have read Intel Cilk Plus documentation, but there is one issue with CEAN (C/C++ extended array notation) i'm confused about. Does it use thread level paralellism or only SIMD level parallelism? Or more specifically, an i use it to just vectorise my code without adding any multithreading?

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Para obter mais informações sobre otimizações de compiladores, consulte Aviso sobre otimizações.

Balaji Iyer (Intel)

qui, 15/12/2011 - 07:27

Best Reply

Hello Sergey,
As far as I know, Array notation only adds SIMD level parallelism.

Thanks,

Balaji V. Iyer.

TimP (Intel)

sab, 17/12/2011 - 09:28

Array notation is useful in order to employ Cilk+ templates:

sum = __sec_reduce_add(a[:] > 0 ? a[:] : 0); // sum of positive elements

Apparently this doesn't involve either vectorization or threading; it's remarkably efficient under those limitations.

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Question about CEAN

Question about CEAN

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