NDAs Re: [Beowulf] Nvidia, cuda, tesla and... where's my double floating point?
lindahl at pbm.com
Tue Jun 17 14:53:08 EDT 2008
On Mon, Jun 16, 2008 at 06:58:40PM -0700, Bill Broadley wrote:
> Heh. Is there a published linpack for some CUDA based solution? Or
> possibly code available?
says that some folks at Berkeley wrote some SGEMM code and that it
achieves ~ 165 Gflops out of a 4-GPU Tesla setup. That's waaaaay down
from the alleged peak of that box.
> I'm pretty sure hypertransport allows for a significant number of
> outstanding memory transactions, so even a single gpu/cpu hybrid could farm
> out a 100GB/sec memory system to numerous sockets.... sounds like a good
> justification for HT3 to me.
Hypertransport is just a bus, it's the northbridge+cpu that determines
how many outstanding transactions you can have.
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