Re: [boost] performance of a linear algebra/matrix library

Subject: Re: [boost] performance of a linear algebra/matrix library
From: DE (satan66613_at_[hidden])
Date: 2010-05-06 14:03:28

on 06.05.2010 at 21:44
 vicente.botet wrote :
> Why you don't use the same pointer arithmetic in C++?
it's not easy because the data is hidden behind an abstraction
that is when you access an element like 'm(i, j)' it may be retrieved
from some kind of storage or even computed on the fly

> I though you wanted performances :)
performance is an important thing but i will not go C anyway

> have you compared with uBlas?
i haven't yet
uBLAS docs claim there is no abstraction penalty for relativly large
matrices but i don't know with what kind of C code they compared,
maybe it is inefficient by the same factor as ublas routines giving
apparently no abstraction penalty

-- 
Pavel