gpu aperture memory

[Fu_J_Intel]

A few questions about aperture memory,

- using OCL, can i allocate memory in aperture memory?

- does the concept "aperture memory"  apply to intel integrated GPU?   My understand was "aperture memory" is only for memroy on gfx card.

- does using "aperture memory" affect performance significantly?

thanks,

Jeffrey

[Robert_I_Intel]

Hi Jeffrey,

We have what's called Shared Physical Memory (SPM). For proper allocation see https://software.intel.com/en-us/articles/getting-the-most-from-opencl-12-how-to-increase-performance-by-minimizing-buffer-copies-on-intel-processor-graphics

See also p. 15 of this whitepaper: https://software.intel.com/sites/default/files/Compute%20Architecture%20of%20Intel%20Processor%20Graphics%20Gen8.pdf