This sounds interesting.. http://www.theregister.co.uk/2013/05/01/amd_huma/
# AMD has released details on its implementation of The Next # Big Thing in processor evolution, and in the process has # unleashed the TNBT of acronyms: the AMD APU (CPU+GPU) HSA hUMA. [...] # The secret sauce that Kaveri will bring to the computing party # is hUMA, a scheme in which both CPU and GPU can share the same # memory stash and the data within it, saving all those nasty # copying cycles. hUMA is cache-coherent, as well – both CPU and # GPU have identical pictures of what's what in both physical # memory and cache, so if the CPU changes something, the GPU # knows it's been changed. # # Importantly, hUMA's shared memory pool extends to virtual # memory, as well, which resides far away – relatively # speaking – on a system's hard drive or SSD. The GPU does # need to ask the CPU to tell the system's operating system # to fetch the required data from virtual memory, but at least # it can get what it wants, when it wants. -- Christopher Samuel Senior Systems Administrator VLSCI - Victorian Life Sciences Computation Initiative Email: [email protected] Phone: +61 (0)3 903 55545 http://www.vlsci.org.au/ http://twitter.com/vlsci _______________________________________________ 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
