topic Question about CEAN in Software Archive

Question about CEAN

Sergey_Matvienko — Tue, 13 Dec 2011 09:42:19 GMT

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?

Question about CEAN

Balaji_I_Intel — Thu, 15 Dec 2011 15:27:10 GMT

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

Thanks,

Balaji V. Iyer.

Question about CEAN

TimP — Sat, 17 Dec 2011 17:28:02 GMT

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.