[boost] Re: uBlas and linear algebra questions

From: David Abrahams (dave_at_[hidden])
Date: 2003-07-28 14:51:27

Juanma Barranquero <jmbarranquero_at_[hidden]> writes:

> On Sat, 26 Jul 2003 13:03:36 -0400
> David Abrahams <dave_at_[hidden]> wrote:
>
>> Well, that's self contradictory!
>
> Not really. A bit later it says:
>
>> On all x86 compatibles (Celeron, PIII, P4, Athlon, etc) you need gcc
>> 2.95.x or earlier, or gcc 3.1 or newer. 

I don't see what that has to do with the contradiction I quoted.
First they say that GCCs newer than 2.95.x will be slower, then later
they say that the fastest GCC they can find is 3.1.

> WRT best optimizer
>
>> Also, I'm strongly suspicious that they only tested with vc6 and not
>> with vc7.1.
>
> I tend to agree, but OTOH, trying the Mojo test:
>
<snip>

> so, at least on certain situations (RVO?) gcc seems to be ahead of
> MSVC.

Well, and EH, probably.

> Unless I'm interpreting the results in too simplistic a way or I've
> done something wrong with compiler options, of course :)

Anything's possible ;->

-- 
Dave Abrahams
Boost Consulting
www.boost-consulting.com