Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Report from the field. (slightly OT)

Author: Eugene Nalimov

Date: 19:27:05 02/09/02

Go up one level in this thread


It's not necessary to vectorize the code to get the benefit from SSE/SSE2. On
SpecFP2k greatest beneftit comes not from the vectorizing (usually it cannot be
done on C program due to possible aliasing) but from the keeping scalar FP
values in the registers.

Eugene

On February 09, 2002 at 20:24:04, Hristo wrote:

>I use MSVC.
>Gian-Carlo tried the source code using the Intel compiler, but it couldn't
>vectorize it. The fft is done in a template class.
>
>BTW
>Gian-Carlo's Athlon performed better than the PIII and P4 as well.
>He got:
>64K samples @ 8 fft/sec
>
>regards.
>hristo



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.