From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3e1162e60605050901h76225ba5g968a975bdcbd608f@mail.gmail.com> Date: Fri, 5 May 2006 09:01:25 -0700 From: "David Leimbach" To: "Fans of the OS Plan 9 from Bell Labs" <9fans@cse.psu.edu> Subject: Re: [9fans] nvidia scrolling performance In-Reply-To: <999CCCBC-2504-4212-9629-E63C2A79BCA5@telus.net> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <10b3044aa926a9c4115682ad88c1983a@quanstro.net> <999CCCBC-2504-4212-9629-E63C2A79BCA5@telus.net> Topicbox-Message-UUID: 4d4a26a4-ead1-11e9-9d60-3106f5b1d025 On 5/5/06, Paul Lalonde wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Aw, but I'd claim all that fancy 3-D graphics stuff is real > computation :-) > But yeah, GPU abuse for general purpose computation is just plain > scary. I thank my lucky stars that there is plenty of FLOPS to go > around in the Cell's SPUs. > Eh, nvidia's working on making the GPUs more accessible (via compilers, kind of like Cell) for more general purpose computation. The problem with FPGA, GPU, and "non-local" coprocessing cores is usually the moving of data to them fast enough. Cell shouldn't have this problem and with the new hypertransport stuff coming out, it looks like one can easilly do NUMA like things inter-chassis too. I don't know if this is cost effective, but streaming parallelism to special coprocessors can be a big win in HPC. Dave > Paul > > On 5-May-06, at 8:46 AM, erik quanstrom wrote: > > > if i were doing real computation, i wouldn't use a gpu i'd use a > > cpu. ;-) > > > > - erik > > > >> 8G/s? Nowhere near enough. Enough for text, but try doing real > >> computation using that GPU... > >> PS3 is running 25G/s bi-directional. Those bits move. > >> > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.1 (Darwin) > > iD8DBQFEW3W0pJeHo/Fbu1wRAoOzAJ9C4d5WBnPm4hH1scoknQI1sFfuTgCgqC9c > Ft6mIE9ogrlaD9ltrNkMmjg=3D > =3DqWgd > -----END PGP SIGNATURE----- >