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Subject: Re: [boost] [math] Efficient polynomial multiplication
From: John Maddock (jz.maddock_at_[hidden])
Date: 2017-07-17 18:53:40

> Looking at the data, I'm wondering why is boost's implementation so slow
> for polynomials of lower degree? I could not see any obvious reason by
> looking at the source.

I would guess memory allocation: if you're multiplying into already
allocated arrays and don't have to dynamically allocate memory for the
result of the multiplication, then that should be a lot quicker. I
can't remember if the polynomial class operators are move-optimised
either (they should be).


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