Gentoo Logo
Gentoo Spaceship




Note: Due to technical difficulties, the Archives are currently not up to date. GMANE provides an alternative service for most mailing lists.
c.f. bug 424647
List Archive: gentoo-science
Navigation:
Lists: gentoo-science: < Prev By Thread Next > < Prev By Date Next >
Headers:
To: gentoo-science@g.o
From: "M. Edward (Ed) Borasky" <znmeb@...>
Subject: Re: lapack transition
Date: Sun, 21 Aug 2005 16:21:45 -0700

Donnie Berkholz wrote:

> I thought f95 was not only the default, but the only choice, and f77 was
> entirely gone.

Maybe ... it wasn't entirely clear to me from the discussion, which was 
relative to Atlas and (shudder) Fedora Core 4, where GCC 4 is the default.

>
> gcc is slotted so you can have many versions installed at the same time
> and switch with gcc-config. Just try unmasking in package.unmask and go.

In the case of Atlas, Clint Whaley tried a couple of tests with GCC 4 
and discovered on some pretty pure and simple scientific code, GCC 4 was 
quite a bit slower than 3.4 on an x86-32. He says, "stick with 3.4 for 
Atlas until 4 gets better". I don't have access to an AMD 64-bit machine 
and I don't have (legitimate, anyhow) access to an Intel x86-64 machine. 
So for now, anyhow, I can wait until all 10,000+ packages in Portage 
compile and test out with GCC 4 <ducking>
-- 
gentoo-science@g.o mailing list


References:
lapack transition
-- Peter Bienstman
Re: lapack transition
-- M. Edward (Ed) Borasky
Re: lapack transition
-- Donnie Berkholz
Navigation:
Lists: gentoo-science: < Prev By Thread Next > < Prev By Date Next >
Previous by thread:
Re: lapack transition
Next by thread:
New Boinc based SETI@home client
Previous by date:
Re: Re: Scientific herd leadership
Next by date:
Re: Re: Scientific herd leadership


Updated Jun 17, 2009

Summary: Archive of the gentoo-science mailing list.

Donate to support our development efforts.

Copyright 2001-2013 Gentoo Foundation, Inc. Questions, Comments? Contact us.