Doesn't sharing a virtual memory context with the GPU increase the cost of conte... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

		nly on April 30, 2013 \| parent \| context \| favorite \| on: AMD’s “heterogeneous Uniform Memory Access” coming... Doesn't sharing a virtual memory context with the GPU increase the cost of context switching? Also, which CPU core shares context with the GPU? Or are we talking about a fixed mapping (like the kernel)?

Symmetry on April 30, 2013 [–]

I'd assume they'd handle sharing memory between a CPU and a part of the GPU the exact same way they'd handle sharing between two CPU cores.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact