English version
Accueil     À propos     Téléchargement     Ressources     Contactez-nous    

Ce site est rarement mis à jour. Pour les informations les plus récentes, rendez-vous sur le nouveau site OCaml à l'adresse ocaml.org.

Browse thread
testers wanted for experimental SSE2 back-end
[ Home ] [ Index: by date | by threads ]
[ Search: ]

[ Message by date: previous | next ] [ Message in thread: previous | next ] [ Thread: previous | next ]
Date: 2010-03-10 (19:26)
From: Mike Lin <nilekim@g...>
Subject: Re: [Caml-list] testers wanted for experimental SSE2 back-end
On Tue, Mar 9, 2010 at 11:33 AM, Xavier Leroy <Xavier.Leroy@inria.fr> wrote:

> - The register-based SSE2 model fits the OCaml back-end much better
>  than the stack-based x87 model.  In particular, "let"-bound intermediate
>  results of type "float" can be kept in SSE2 registers, while in
>  the current x87 mode they are systematically flushed to the stack.

> Note that x86-64 bits systems as well as Mac OS X already use SSE2 as
> their default floating-point model.

I have a bunch of biological sequence analysis stuff that could be
interesting but I am already in x86-64 ("Wow! A 64 bit architecture!"). The
above seems pretty clear but just to verify - I would not benefit from this
new back-end, right?