On 05/03/2013 01:29 PM, Geoffrey Jacobs wrote: > On 05/02/2013 07:41 PM, Vincent Diepeveen wrote: >> Also utter useless it is, as the GPU has what is it 200GB/s bandwidth, >> going back to 6GB/s cache coherent gpu/cpu (just taking a number i've >> seen more there get claimed >> that the bandwidth was in OpenCL) you lose roughly factor 30+ so >> using such features is total nuts. > > The vector unit (formerly the GPU) would still have the local caches, > no? Also, the APUs these would be replacing already have physically > unified access to the DDR3 memory pool, so there's no change in > effective bandwidth. Some APUs would come with a GDDR5 memory pool, so > memory bandwidth would be upgraded for the CPU. > > The big change is that the pools are not separately allocated.
Speaking of being utter[ly] useless...just wait for it... _______________________________________________ Beowulf mailing list, [email protected] sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
