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speedup for non square matrix multiplication

hi everyone

am using multicore toolkit for matrix multiplication 4x4 with 4xV where V vary from 100 to 10000000

why the speedup decrease for larger value of V ? 

 

 

speedup.png

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I'd wager the computer gets occupied with memory management instead of calculating.

/Y

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You did not attach your subVI.

 

Your "computation time" graph would look better with logarithmic Y mapping.

Why do you again create such a worm of a sequence structure (compare to our old discussion!).

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i just work in this vi to display various size together, regardless the worm structure also in the (old vi) the speedup decreased for large # of points!

 

are there any error in the vi??

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