The Atlas main page is on SourceForge at
The Atlas performance list archive is at
and the main Atlas developer list archive is at
I haven't seen any Sparc data; I have an Athlon at home and Pentia and
Alphas at work, so if Sparc results went by me I ignored them.
-- M. Edward (Ed) Borasky, Chief Scientist, Borasky Research http://www.borasky-research.net http://www.aracnet.com/~znmeb mailto:firstname.lastname@example.org mailto:email@example.com
Q: How do you tell when a pineapple is ready to eat? A: It picks up its knife and fork.
> -----Original Message----- > From: Luigi Genoni [mailto:kernel@Expansa.sns.it] > Sent: Sunday, September 30, 2001 11:12 AM > To: M. Edward Borasky > Cc: Linux Kernel > Subject: Re: GCC 2.95, 2.96 and 3.0 on linear algebra (was RE: 2 GB file > limitation) > > > yes, thanx, > I am very interested in those details. > > For the tests i made on sparc64 gcc 3.0.1 is really faster than previous > versions (2.95.3 and egcs 1.1.2), but on AMD Athlon is a different story. > I think I can infer that gcc speed depends a lot from CPUs, but > usually and storically gcc was heavilly x86 optimized... > > Luigi > > On Sun, 30 Sep 2001, M. Edward Borasky wrote: > > > I have heard from the Atlas linear algebra folks the following: > > > > 1. For compiling Atlas, both on Athlons and Pentia, GCC 2.95.x produces > > *significantly* faster operation than either 3.0.x or 2.96.x > > 2. For IA64, the reverse is true: GCC 3.0.x produces > significantly faster > > code. > > > > I can dig up the URL for the mailing list if anyone cares for > the details. > > > > -- > > M. Edward (Ed) Borasky, Chief Scientist, Borasky Research > > http://www.borasky-research.net http://www.aracnet.com/~znmeb > > mailto:firstname.lastname@example.org mailto:email@example.com > > > > Q: How do you tell when a pineapple is ready to eat? > > A: It picks up its knife and fork. > > > > > -----Original Message----- > > > From: firstname.lastname@example.org > > > [mailto:email@example.com]On Behalf Of Gábor Lénárt > > > Sent: Sunday, September 30, 2001 1:24 AM > > > To: Luigi Genoni > > > Cc: Linux Kernel > > > Subject: Re: 2 GB file limitation > > > > [snip] > > > > > > > I think you can get >2GB support if you've Gcc 3.0. Even with > > > the latest > > > > > > > > > ??? > > > > I am using it and I am using gcc 2.95.3 for normal things, > > > > and to compiled my kernel and my libc, because gcc > > > > 3.0.1 produces slower binaries on my Athlons (yes, with athlon > > > > optimizzations turned on), at less for my programs, and it > is better to > > > > avoid it for glibc compilation because of back compatibility issues. > > > > > > Yes, gcc3 is (well at least NOW) a piece of shit. It produces > BIGGER and > > > SLOWER binaries ... Checked on: Athlon, AMD K6-2. > > > With the same gcc command line ... > > > > - > > To unsubscribe from this list: send the line "unsubscribe > linux-kernel" in > > the body of a message to firstname.lastname@example.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ > > > >
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to email@example.com More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sun Sep 30 2001 - 21:01:14 EST