How do your Rate numbers correlate to the max bandwitdh of 32GB/s (http://en.wikipedia.org/wiki/GeForce_8_Series)?
Or do these threads all operate on the same data? Mattijs On Thursday 28 February 2008 08:38, John Hearns wrote: > On Wed, 2008-02-27 at 23:30 -0800, Bill Broadley wrote: > > I don't see any particular reason why memory bandwidth can go through a > > full doublings in the near future if there was a market for it, last I > > checked nvidia was doing pretty well ;-) > > > > [1] Sorry to use marketing bandwidth, I've not seen stream numbers for > > CUDA yet. I hope to work on one though. If anyone has numbers please > > speak up. > > Some numbers here: > > http://forums.nvidia.com/index.php?showtopic=52686 > > > Running this on my 8600 card I get: > > STREAM Benchmark implementation in CUDA > Array size (single precision)=2000000 > using 128 threads per block, 15625 blocks > Function Rate (MB/s) Avg time Min time Max time > Copy: 291777.6696 0.0001 0.0001 0.0001 > Scale: 291777.6696 0.0001 0.0001 0.0001 > Add: 437666.5043 0.0001 0.0001 0.0001 > Triad: 437666.5043 0.0001 0.0001 0.0001 > > > All the 0.0001 don't look right to me, but its 8:30 here and I should > get on with the day job. > > _______________________________________________ > Beowulf mailing list, [email protected] > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf _______________________________________________ Beowulf mailing list, [email protected] To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
