ext::intel::info::device::free_memory

[jinz2014]

Could you comment on the support of ext::intel::info::device::free_memory on Intel GPUs ?

[steffenlarsen]

The ext::intel::info::device:free_memory device query is supported on Intel GPUs, though they do currently require the user to set the ZES_ENABLE_SYSMAN env var.

[AlexeySachkov]

Hi @jinz2014,

The API interface itself is device-agnostic, so it should work everywhere. However, implementation details of it in low-level parts of the SW stack do indeed introduce some differences.

For example, according to the extension spec the query may need ZES_ENABLE_SYSMAN=1 env variable to be set for it to work. However, as far as I know this functionality is not supported on integrated GPUs, i.e. you will see 0 as a result regardless of env variables. Unfortunately, I don't have any links to a more precise documentation, or issue submitted about that behavior.