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Re: GCC & OpenCL ?
- From: Paolo Bonzini <bonzini at gnu dot org>
- To: Toon Moene <toon at moene dot org>
- Cc: Michael Meissner <meissner at linux dot vnet dot ibm dot com>, Basile STARYNKEVITCH <basile at starynkevitch dot net>, GCC Mailing List <gcc at gcc dot gnu dot org>
- Date: Sun, 01 Feb 2009 18:57:49 +0100
- Subject: Re: GCC & OpenCL ?
- References: <498309EF.1080903@starynkevitch.net> <20090130215552.GA10981@hungry-tiger.westford.ibm.com> <4985703D.60603@gnu.org> <4985A6A1.3000108@moene.org>
> Although the OpenCL infrastructure doesn't confine itself to it, this
> compute-on-the-graphic-processor type of parallellism mostly concerns
> itself with "let's do the FFT (or DGEMM) really fast on this processor
> and then return to the user".
Not really, it's not about FFT/DGEMM only -- the parallel stuff can be
expressed in a high-level language, and the communication cost is
actually something you have to consider seriously.
> If it isn't (surely not for us meteorology types) this approach is of
> limited use.
I'm pretty sure you meteorology guys can benefit quite from it.
Paolo