Problems installing gmp

[Herve Pages]

Torbjorn Granlund wrote:
> Herve Pages <hpages at fhcrc.org> writes:
>
>   With config.guess from gmp 4.2.1:
>     hpages at churchill:/usr/local/src/gmp-4.2.1> ./config.guess
>     ultrasparc3-sun-solaris2.9
>   
>   With config.guess from gcc 4.1.1:
>     hpages at churchill:/usr/local/src/gcc-4.1.1> ./config.guess
>     sparc-sun-solaris2.9
>   
>   Configuring gmp with
>     ./configure --build=sparc-sun-solaris2.9
>   solved the problem.
>   
> It "solves the problem", but it is not the right solution if you
> wantneed GMP to perform well.
Yeah I know... and I'd love to know how to get ld to link the
ultrasparc3-sun-solaris2.9 build by the way!

>   A 32-bit build runs at abuot 1/3
> of the speed of a 64-bit build.
>   

Not on UltraSPARC, according to these charts:
  http://www.swox.com/gmp/32vs64.html
It looks more like the 32-bit build runs at about 60% to 70%
of the speed of a 64-bit build, which is better than having no GMP
at all (and consequently no Fortran front-end for GCC 4.1.1).

Cheers,

H.


-- 
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Hervé Pagès
E-mail: hpages at fhcrc.org
 Phone: (206) 667-5791
   Fax: (206) 667-1319
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