Re: [eigen] Speed issues, array min,max

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Why is this test code so slow for eigen3

(see simple main)
http://pastebin.com/11XzzNFs


Output here with gcc 4.9.2 , full optimization is turned on:

Eigen3: time: 0.150045 ms     
Seperate: time: 0.000131 ms    

So it seems that it is not beneficial to use eigen for this simple index calculations, but why?


Thanks for the help! :-)




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