gpu aperture memory - Intel Community

OpenCL* for CPU

Ask questions and share information on Intel® SDK for OpenCL™ Applications and OpenCL™ implementations for Intel® CPU.

gpu aperture memory

680 Views

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

Link Copied

1 Reply

680 Views

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

Copy link

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.