Incorrect max_mem_alloc_size_byte for MTL / ARL when using xpu-smi.exe discovery -d 0 -j

[climh]

Using xpu-smi v1.3.5, output is inaccurate for MTL / ARL. It only show 4GB as compared to LNL which shows the right value

Command

xpu-smi.exe discovery -d 0 -j

Output

[eero-t]

This is likely what the underlying driver stack reports. Are you using same kernel and user-space Level-Zero driver versions on all the machines?

If yes, and if similar amounts to XPUM are reported by zello_sysman: https://github.com/intel/compute-runtime/blob/master/level_zero/tools/test/black_box_tests/zello_sysman.cpp [1]

You should file this against compute-runtime driver project instead.

[1] After installing Level-Zero loader dev package, build zello_sysman tester from Git repo root with:
g++ -O2 -Wall -I level_zero/include -o zello_sysman level_zero/tools/test/black_box_tests/zello_sysman.cpp -lze_loader
And run as:
ZES_ENABLE_SYSMAN=1 ./zello_sysman --memory

Disclaimer: I'm not a XPUM maintainer, just another user.