[Beowulf] Inside Tsubame - the Nvidia GPU supercomputer - OpenCL

Daniel Kidger daniel.kidger at quadrics.com
Wed Dec 17 06:08:24 PST 2008

Tsubame isn't just about delivering flops to production codes.
It is trying to spearhead coprocessing.
The people there have been porting codes to ClearSpeed / GPUs for a
while - and hence been publishing their experiences.


On Fri, 2008-12-12 at 12:01 +0000, Loic Tortay wrote:
> Florent Calvayrac-Castaing wrote:
> [...]
> >
> > Interesting.
> >
> > I understand why, when I submitted a joint exploratory project
> > about GPU computing two years ago with a Japanese
> > colleague we were ranked first in Japan and last in France ; the
> > idea seems more popular in Japan if they can fork  millions
> > on an architecture it is not very quick to program for (at least
> > maybe not as fast as Moore's law is increasing power).
> >
> They may be willing to spend millions because they already have programs
> able to use the GPUs.
> If I'm not mistaken, the "Tsubame" cluster was initially using
> Clearspeed accelerators (in Sun X4600 "fat" nodes).
> Therefore, they probably have appropriate programs that need little
> adaptation (or less than many) to work on the GPUs.
> Loïc.
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